JP2017221986A - Dust collector and working tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collector applicable to a working tool over a wider range regarding a length of a tip tool.SOLUTION: A dust collector 4 collects dust using air stream generated by a hammer drill 1. The dust collector 4 comprises: a body part 5 including an internal area 60 and a dust container 7; a sliding part 8; and a communication passage 9. The communication passage 9 extends vertically in the internal area 60, and provides communication between the dust container 7 and an air flow passage 151 of the hammer drill 1. The sliding part 8 is held by the body part 5 relatively movably between a most separated position and a closest position in a front-rear direction while a part of the sliding part 8 protrudes from an opening part 620 and a part thereof is arranged inside the internal area 60. A distance between the opening part 620 and a rear end 85 of the sliding part 8 when the sliding part 8 is arranged at the closest position, is longer than a distance between the opening part 620 and the communication passage 9. The sliding part 8 has a first space part 837 configured to avoid interference between the communication passage 9 and the sliding part 8 when the sliding part 8 is arranged at the closest position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a dust collector configured to be detachable from a work tool, and a work tool including the dust collector.

  2. Description of the Related Art There is known a dust collector that is attached to a work tool such as a drill or a hammer drill and sucks dust generated by drilling work or the like. For example, the dust collector disclosed in Patent Document 1 sucks dust together with air from a suction port using an air flow formed by a suction fan provided on a work tool, and transfers the dust to a dust container via a hose. Is configured to do. In this dust collector, the long guide rail that holds the hose is held in the housing so as to be slidable in the long axis direction, and the tip tool enters the workpiece as the drilling progresses. As it does, it is pushed into the housing.

EP 1882899 Specification

  The housing of the dust collector is provided with a passage that extends from the dust container and opens to the work tool side of the housing in order to guide the air that has passed through the dust container to the work tool. For this reason, the length of the guide rail is set so as not to reach the passage even when the guide rail is pushed all the way into the housing. Therefore, when using a tip tool having a long total length, there is a problem that the total length of the guide rail cannot be fully accommodated.

  It is an object of the present invention to provide a dust collector that can be applied in a wider range and a work tool including the dust collector according to the length of the tip tool used.

  According to one aspect of the present invention, the dust generated in the machining operation using the air flow formed by the work tool can be attached to and detached from the work tool that performs the machining operation on the workpiece by driving the tip tool. A dust collector configured to collect the dust is provided. This dust collector includes a main body, a sliding part, and a communication path.

  The main body is configured to be detachable from the work tool, and includes a dust storage area, an internal area, and an opening. The dust accommodating area is an area configured to accommodate dust. The internal region is a region disposed between the work tool and the dust storage region in a state where the dust collector is mounted on the work tool. The opening is configured to communicate the internal region with the outside of the main body.

  The sliding portion is formed in a long shape, and is held in the main body portion so as to be slidable in a predetermined first direction in a state where a part protrudes to the outside from the opening and a part is disposed in the inner region. Has been. The sliding portion includes a dust suction port, and connects the suction port and the dust storage area, and has at least a part of a dust transfer path through which dust is transferred.

  The communication path extends in a second direction intersecting the first direction in the inner region, and the dust container and the air flow channel provided in the work tool in a state where the dust collector is mounted on the work tool. Are configured to communicate with each other.

  Furthermore, in the first direction, the sliding part can be moved relative to the main body part between the most distant position where the suction port is farthest from the opening and the closest position where the suction port is closest to the opening. It is. The distance in the first direction between the opening and the innermost end of the sliding part when the sliding part is disposed at the closest position is the distance in the first direction between the opening and the communication path. Longer than. Here, the innermost end of the sliding portion refers to the end of the sliding portion disposed at the innermost portion of the main body with respect to the opening. The sliding portion has an interference avoiding portion configured to avoid interference with the communication path when the sliding portion is disposed at the closest position.

  In the dust collector having such a configuration, when the sliding portion is disposed at the closest position, that is, when the sliding portion enters the inside of the main body most, the innermost end of the sliding portion is connected in the inner region. It arrange | positions in the position away from the opening part rather than the channel | path. On the other hand, by providing the interference avoiding portion on the sliding portion, it is possible to avoid interference with the communication path even when the sliding portion is disposed at the closest position. Therefore, the dust collection can be applied to a longer tip tool compared to the conventional configuration in which the length of the sliding portion is set so as not to reach the communication path when the sliding portion is arranged at the closest position. An apparatus can be realized.

  As one aspect of the dust collector according to the present invention, the interference avoiding portion is formed in the sliding portion as a space portion that penetrates the sliding portion in the second direction and continues to the innermost end in the first direction. Also good. The space part should just contain the area | region where a communicating path is arrange | positioned at least when a sliding part is arrange | positioned in the nearest position. In this way, by configuring the interference avoiding portion as a space portion formed in the sliding portion, the entire sliding portion can be configured simply as compared to the case where the interference avoiding portion is configured by some member.

  As one aspect of the dust collector according to the present invention, the space portion is operated in a state where at least the dust collector is mounted on the work tool in the second direction when the sliding portion is disposed at the most separated position. The end portion on the side where the tool is disposed may be configured to be disposed in the internal region. If the space portion is disposed in a portion of the sliding portion that protrudes to the outside from the opening portion of the main body portion, dust may enter the sliding portion and thus the inside of the main body portion through the space portion. In particular, in the second direction, it is considered that the dust is more likely to enter from the side where the work tool is arranged. On the other hand, when the sliding portion is in the farthest position, that is, the position that protrudes most from the opening, at least the end portion on the side where the work tool is disposed in the space portion is disposed in the internal region, so that the dust is The possibility of entering the vehicle can be reduced.

  As one aspect of the dust collector according to the present invention, the main body may include an engaging portion and an operation member. The engaging portion is provided on the side where the work tool is disposed in a state where the dust collector is mounted on the work tool in the second direction, and is configured to be detachable from the tool body of the work tool. The operating member is provided on the same side as the engaging portion in the second direction, and holds the engagement with the tool main body by the engaging portion according to a manual operation from the outside and a state in which the engagement can be released. Can be switched between. As described above, the engagement portion that is attached to and detached from the tool main body of the work tool and the operation member that switches the engagement state are provided on the same work tool side in the main body portion, thereby facilitating the attachment and detachment work. it can.

  As one aspect of the dust collector according to the present invention, the operation member may be configured to be manually operable in the second direction. Since it is considered that the operator often places the thumb on the side where the work tool is arranged in the second direction when performing the attachment / detachment operation of the dust collector, this configuration makes it easier to operate the operation member. Become.

  As an aspect of the dust collecting apparatus according to the present invention, the sliding portion may include a pair of guide rails and a positioning member. The pair of guide rails are arranged substantially parallel to each other and spaced apart from each other, and extend in the first direction. The positioning member is configured to be relatively movable in the first direction with respect to the sliding portion by the pair of guide rails, and is configured to be able to be locked to the pair of guide rails. The positioning member is configured to adjust the protruding length of the sliding portion from the opening in the first direction or the length of the sliding portion entering from the opening in the first direction. According to such a configuration, it is possible to adjust the protrusion length according to the length of the tip tool actually used by the positioning member, or the entry length according to the desired processing amount with respect to the workpiece by the tip tool. it can. Further, since the positioning member is held by the pair of guide rails, the positioning member can stably move relative to the first direction.

  According to one aspect of the present invention, a work tool that drives a tip tool to perform a machining operation on a workpiece is provided. The work tool includes a fan configured to form an air flow for sucking up dust generated in a machining operation, a tool main body having a flow path for air flow, and a fan main body, and a tool main body. It is equipped with a dust collector that can be mounted. Any of the above-described dust collectors can be employed as the dust collector. According to such a work tool, since an air flow for sucking dust is formed by the dust collector, it is not necessary to provide a mechanism for forming the air flow in the dust collector. Furthermore, the above-described effects realized by the employed dust collector can be exhibited.

It is the front-back direction longitudinal cross-section of the hammer drill with which the dust collector which concerns on 1st embodiment was mounted | worn. It is an enlarged view of the main-body part of the dust collector of FIG. 1, and its peripheral part. It is a left view of a dust collector (however, the state where a communicating passage formation part was removed is shown). It is sectional drawing in the IV-IV line | wire of FIG. 2 (however, a sliding part shows the state which exists in the closest position). It is a left view of a dust container in the state where a filter holder was opened. It is sectional drawing in the VI-VI line of FIG. It is sectional drawing in the VII-VII line of FIG. It is a bottom view of a 2nd transfer part. It is sectional drawing in the IX-IX line of FIG. It is sectional drawing in the XX line of FIG. It is the front-back direction longitudinal cross-section of the hammer drill with which the dust collector which concerns on 2nd embodiment was mounted | worn. It is sectional drawing in the XII-XII line | wire of FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, an electric hammer drill is exemplified as a work tool that performs a machining operation by driving a tip tool. Moreover, the dust collector comprised so that attachment or detachment with respect to the hammer drill was illustrated.

[First embodiment]
Hereinafter, with reference to FIGS. 1-10, the hammer drill 1 which concerns on 1st embodiment, and the dust collector 4 are demonstrated.

  First, with reference to FIG. 1, the whole structure of the hammer drill 1 is demonstrated easily. As shown in FIG. 1, the hammer drill 1 includes a main body portion 10 and a handle 13. The main body 10 is formed in a long shape. A tool holder 12 to which the tip tool 19 can be attached and detached is provided at one end in the major axis direction of the main body 10, and the handle 13 extends from the other end in a direction crossing the major axis of the main body 10. It extends. As the tip tool 19 that can be attached to the tool holder 12, a plurality of tools (drill bit, hammer bit, etc.) having different types and lengths are prepared corresponding to various machining operations.

  The hammer drill 1 of the present embodiment has an operation for driving the tip tool 19 linearly along a predetermined striking axis A1 (hammer operation) and an operation for rotating the tip tool 19 around the striking axis A1 (drilling operation). Is configured to do. The operator selects an appropriate type and length of the end tool 19 according to the actual work to be performed, and inserts the end tool into the tool holder 12 so that the axial direction of the end tool 19 and the striking axis A1 direction coincide with each other. 19 is installed. In the hammer drill 1 of the present embodiment, the striking axis A1 extends in the long axis direction of the main body 10.

  Hereinafter, detailed configurations of the main body 10 and the handle 13 will be described in order. In the following description, for the sake of convenience, the major axis direction of the main body 10 (also referred to as the striking axis A1 direction or the axial direction of the tip tool 19) is defined as the longitudinal direction of the hammer drill 1, and the tool holder 12 is provided. The side where the handle 13 is connected is defined as the front side of the hammer drill 1 and the side where the handle 13 is connected. Further, the direction perpendicular to the major axis direction of the main body 10 and corresponding to the extending direction of the handle 13 is defined as the vertical direction, the side where the handle 13 is connected to the main body 10 is the upper side, and the tip of the handle 13 ( The side on which the free end is disposed is defined as the lower side.

  The main body 10 will be described with reference to FIGS. 1 and 2. The main body 10 includes a main body housing 11, a tool holder 12, a motor 20, a motion conversion mechanism 31, a striking element 33, and a rotation transmission mechanism 35. Hereinafter, these configurations will be described in order.

  As shown in FIG. 1, the main body housing 11 is a housing that forms an outline of the main body 10, and houses the tool holder 12, the motor 20, the motion conversion mechanism 31, the striking element 33, and the rotation transmission mechanism 35 therein. . The main body housing 11 is formed by combining a plurality of parts such as a part that accommodates the motor 20 and a part that accommodates the drive mechanism (the motion conversion mechanism 31, the striking element 33, and the rotation transmission mechanism 35) of the tip tool 19. It may be formed or may be formed from one part. Further, the main body housing 11 may be formed as a one-layer housing, or an outer housing that forms an outline of the main body 10 and an inner housing that is disposed in the outer housing and accommodates an internal mechanism. May be.

  An intake port 15 is provided on the lower end surface of the central region in the front-rear direction of the main body housing 11. The intake port 15 is a through hole that allows communication between the inside and the outside of the main body housing 11. Although details will be described later, the air inlet 15 is provided so as to communicate with the communication passage 9 of the dust collector 4 when the dust collector 4 is mounted on the hammer drill 1. The main body housing 11 is also provided with an exhaust port (not shown) through which air that flows in from the intake port 15 and passes through the air flow path 151 is discharged.

  Further, as shown in FIG. 2, a pair of left and right guide rails 17 extending in the front-rear direction from the front side to the front end portion with respect to the intake port 15 are provided at the lower end portion of the main body housing 11. The guide rail 17 is configured to be engageable with an engaging portion 63 of the dust collector 4 described later. An engagement recess 18 is provided at the lower front end of the main body housing 11 (the front side of the guide rail 17). The engaging recess 18 is a recess that is recessed upward from the lower end surface of the main body housing 11, and is configured to be engageable with a protrusion 643 of an operation member 64 of the dust collector 4 described later.

  In the present embodiment, an AC motor is employed as the motor 20 that functions as a drive source for the tip tool 19. As shown in FIG. 1, the motor 20 is disposed in the rear region of the main body housing 11 so that the axis of the output shaft 21 of the motor 20 is parallel to the striking axis A1 (that is, extends in the front-rear direction). Has been. A cooling fan 23 for cooling the motor 20 and a dust collecting fan 25 disposed on the front side of the cooling fan 23 are fixed to the output shaft 21. The dust collection fan 25 is a suction fan configured to generate an air flow for sucking dust generated in the processing operation by the tip tool 19. The dust collection fan 25 is disposed above the intake port 15 described above. A drive gear 27 is provided at the front end portion of the output shaft 21. The cooling fan 23, the dust collection fan 25, and the drive gear 27 rotate integrally with the output shaft 21.

  The motion conversion mechanism 31, the striking element 33, and the rotation transmission mechanism 35 are disposed in the front region of the main body housing 11. The rotational power of the motor 20 is transmitted to the motion conversion mechanism 31 and the rotation transmission mechanism 35 via the drive gear 27. The motion conversion mechanism 31 is configured to convert the rotational motion of the output shaft 21 into a reciprocating motion in the direction of the striking axis A1 of the piston when the swing ring swings. The striking element 33 is configured to apply a striking force in the striking axis A1 direction to the tip tool 19 in accordance with the reciprocating motion of the piston. As the motor 20 is driven, the tip tool 19 is linearly driven by the motion conversion mechanism 31 and the striking element 33 in the direction of the striking axis A1. The rotation transmission mechanism 35 is composed of a plurality of gears, and is configured to transmit the rotational power of the motor 20 to the tip tool 19 via the tool holder 12 as a final shaft after appropriately reducing the rotational power. The tip tool 19 is driven to rotate around the striking axis A1 by the rotation transmission mechanism 35 as the motor 20 is driven. Since the motion conversion mechanism 31, the striking element 33, and the rotation transmission mechanism 35 are well-known techniques, further description thereof is omitted here.

  The hammer drill 1 of the present embodiment is configured such that any one of three modes of a hammer drill mode, a drill mode, and a hammer mode can be selected by operating a mode change lever (not shown) provided in the main body portion 10. Yes. The hammer drill mode is a mode in which a striking operation and a drill operation are performed by driving the motion conversion mechanism 31 and the rotation transmission mechanism 35. The hammer mode is a mode in which only the striking operation is performed by interrupting the transmission of power in the rotation transmission mechanism 35 and driving only the motion conversion mechanism 31. The drill mode is a mode in which only the drilling operation is performed by interrupting power transmission in the motion conversion mechanism 31 and driving only the rotation transmission mechanism 35. Of these modes, the dust collector 4 of the present embodiment is particularly useful when the hammer drill 1 is operated in the hammer drill mode or the drill mode (that is, when a machining operation including a drilling operation is performed). is there. Since the configuration for mode switching is a well-known technique, description thereof is omitted here.

  The handle 13 will be described with reference to FIG. The handle 13 is a long portion that extends downward from the rear end of the main body 10. The handle 13 includes a handle housing 131 that forms an outline of the handle 13, a power cable 133, and a trigger 135. The handle housing 131 is formed as a separate body from the main body housing 11 and may be coupled to the main body housing 11 or may be formed integrally with at least a part of the main body housing 11.

  A power cable 133 for connecting to an external AC power source extends from the lower end of the handle housing 131. The trigger 135 is provided on the upper front side of the handle housing 131. A switch, a controller (both not shown) and the like are accommodated in the handle housing 131. A motor 20, a power cable 133, a switch, and the like are electrically connected to the controller. When the operator pulls the trigger 135, the switch is turned on, and the motor 20 is energized and driven. The motor 20 is driven and controlled by a controller.

  Hereinafter, with reference to FIG. 1, the whole structure of the dust collector 4 is demonstrated easily. In addition, since the dust collector 4 is used in a state where it is mounted on the hammer drill 1, in the following description, for convenience, the direction of the dust collector 4 is matched to the direction of the hammer drill 1 when mounted on the hammer drill 1. Stipulate.

  As shown in FIG. 1, the dust collector 4 includes a main body portion 5 and a sliding portion 8. The main body 5 is configured to be detachable on the lower side of the main body 10 of the hammer drill 1. A dust container 7 for storing dust is detachably provided on the lower portion of the main body 5. The sliding portion 8 is formed in an L shape in a side view, and has a dust suction port 812 at the tip. The sliding part 8 is held by the main body part 5 so as to be slidable in a direction (front-rear direction) parallel to the striking axis A1 with a part including the suction port 812 protruding forward from the main body part 5. A dust transfer path 80 through which dust sucked from the suction port 812 is transferred passes through the sliding portion 8 and is connected to the dust container 7 of the main body portion 5. When the dust collector 4 is mounted on the hammer drill 1, the dust container 7 is connected to the intake port 15 of the hammer drill 1 through the communication path 9.

  When the motor 20 of the hammer drill 1 is driven, an air flow in a direction of being drawn into the main body housing 11 from the air inlet 15 is formed by the dust collecting fan 25 that rotates together with the output shaft 21. By this air flow, a suction force acts on the suction port 812 through the communication path 9, the dust container 7, and the dust transfer path 80 of the dust collector 4. Dust generated by the processing operation is sucked from the suction port 812 together with air by this suction force, and flows into the dust container 7 through the dust transfer path 80. In the dust container 7, only dust is separated from the air and stored. The air after the dust is separated flows into the main body housing 11 of the hammer drill 1 from the intake port 15 through the communication passage 9 and is discharged from the exhaust port (not shown). Thus, the dust collector 4 is configured to collect dust using an air flow formed by the dust collecting fan 25 of the hammer drill 1.

  Hereinafter, details of the main body portion 5 and the sliding portion 8 will be described in order. First, the configuration of the main body unit 5 will be described. As shown in FIGS. 2 and 3, in the present embodiment, the outline of the main body 5 is mainly formed of a main body housing 6 and a dust container 7. The main body housing 6 is formed in an elongated shape corresponding to the main body portion 10 of the hammer drill 1 and is configured to be detachable from the main body portion 10. The dust container 7 is generally formed in a rectangular box shape as a whole, and is detachably attached to the lower side of the main body housing 6.

  Hereinafter, the structure of the main body housing 6 will be described with reference to FIGS. As shown in FIG. 3, the main body housing 6 includes a box-shaped portion 61 that forms the rear side portion of the main body housing 6 and a cylindrical portion 62 that forms the front side portion of the main body housing 6. The box-shaped part 61 is a part to which the dust container 7 is attached and detached, and is formed in a substantially rectangular box shape, but has a protruding part 611 protruding downward at the front end part. The cylindrical part 62 is a part for mainly holding the sliding part 8 so as to be slidable in the front-rear direction, and is formed in a cylindrical shape having a substantially rectangular cross section as shown in FIG. In the present embodiment, the main body housing 6 is made of resin, and the box-shaped part 61 and the cylindrical part 62 are integrally formed.

  As shown in FIGS. 2 to 4, the upper end portion of the main body housing 6 is provided with an engaging portion 63 configured to be detachable with respect to the main body portion 10 (specifically, the main body housing 11) of the hammer drill 1. Yes. More specifically, the engaging portion 63 is formed as a pair of protruding portions that protrude upward from the left and right ends of the main body housing 11 and extend in the front-rear direction. The engaging portion 63 has a length in the front-rear direction corresponding to the pair of guide rails 17 provided on the main body housing 11 of the hammer drill 1, and a pair of guides that can be slidably engaged with the pair of guide rails 17 on the inner side. A groove 631 is provided.

  As shown in FIG. 2, an operation member 64 is provided on the front side of the engaging portion 63. The operation member 64 is disposed in a storage portion 640 provided above the cylindrical portion 62. An urging spring 641 is disposed between the operation member 64 and the upper surface of the cylindrical portion 62, and the operation member 64 swings in the vertical direction with the front end portion locked in the housing portion 640 as a fulcrum. Held possible. The operation member 64 has a protrusion 643 provided at the rear end portion and a pressing portion 642 provided at the center portion. The protrusion 643 is a part configured to be engageable with the engagement recess 18 of the hammer drill 1. The pressing part 642 is a part that is pressed from outside by an operator. The operation member 64 is always urged upward by the urging spring 641, the protrusion 643 protrudes upward from the opening on the upper surface of the housing portion 640, and the pressing portion 642 is exposed upward from the opening on the upper surface of the housing portion 640. doing.

  When the worker attaches the dust collector 4 to the hammer drill 1, the operator slides the dust collector 4 backward with respect to the hammer drill 1 with the guide rail 17 engaged with the guide groove 631 of the engaging portion 63. . In the process of moving the dust collector 4 to a predetermined position, the protrusion 643 is pressed against the front end of the main body housing 11 and temporarily moves downward against the biasing force of the biasing spring 641, and then the biasing spring. It is biased by 641 and engages with the engaging recess 18. Thereby, mounting | wearing to the hammer drill 1 of the dust collector 4 is completed. The protrusion 643 engages with the engagement recess 18 and restricts the relative movement of the main body housing 11 and the main body housing 6 in the front-rear direction, thereby holding the engagement state between the guide groove 631 and the guide rail 17.

  When the operator presses the pressing portion 642 downward, the operating member 64 swings downward against the biasing force of the biasing spring 641, and the engagement between the protrusion 643 and the engagement recess 18 is released. In this state, the operator can remove the dust collector 4 from the hammer drill 1 by moving the dust collector 4 forward with respect to the hammer drill 1. As described above, the operation member 64 is configured to be switchable between a state in which the engagement portion 63 holds the engagement with the hammer drill 1 (guide rail 17) and a state in which the engagement can be released. .

  The box-shaped portion 61 of the main body housing 6 is provided with a configuration for holding the dust container 7. Specifically, as shown in FIG. 2, a columnar rotation support portion 612 extending in the left-right direction is provided at the lower rear end portion of the box-shaped portion 61, and a lower end portion of the protruding portion 611 is provided at the lower end portion. A locking portion 613 protruding rearward is provided so as to extend in the left-right direction. The dust container 7 is attached to the main body housing 6 by engaging a rotation engaging portion 712 and a locking projection 713 of the dust container 7 described later with the rotation support portion 612 and the locking portion 613.

  In the main body housing 6, a configuration for holding the sliding portion 8 so as to be slidable in the front-rear direction is provided. Specifically, as shown in FIG. 4, the left inner surface of the main body housing 6 is provided with a pair of guide rails 621 that protrude toward the inner side of the main body and that are separated in the vertical direction and extend in the front-rear direction. Yes. Similarly, a pair of guide rails 622 is also provided on the right inner surface of the main body housing 6. Although details will be described later, the guide rails 621 and 622 are configured to be slidably engaged with the engaging recesses 822 and 823 of the sliding portion 8.

  As shown in FIG. 2, an internal region 60 (a space region formed continuously inside the box-shaped portion 61 and the cylindrical portion 62) formed inside the main body housing 6 It is an area arranged between the hammer drill 1 and the dust container 7 in a state where the device 4 is mounted on the hammer drill 1. The internal region 60 communicates with the outside of the main body 5 via an opening 620 provided at the front end of the cylindrical portion 62. In the internal region 60, a part of the sliding portion 8 inserted from the opening 620 and a part of the dust transfer path 80 (more specifically, a part of the hose 800 defining the dust transfer path 80 and a hose connection) Part 802) is arranged. As described above, since the sliding portion 8 slides in the front-rear direction, the length of the sliding portion 8 entering the inner region 60, that is, the innermost portion of the main body housing 6 with respect to the opening 620 (the rearmost) The position of the rear end 85 of the sliding portion 8 arranged at () varies. The arrangement of the sliding portion 8 and the dust transfer path 80 in the internal region 60 will be described in detail later. In addition, although the communication path 9 and the conductive member 67 are disposed in the internal region 60, the communication path 9 and the conductive member 67 will be described after the description of the dust container 7.

  Hereinafter, the configuration of the dust container 7 will be described with reference to FIGS. 2, 5, and 6. As shown in FIG. 5, the dust container 7 is mainly formed of a container main body 71 and a filter holder 72 connected to the upper rear end portion of the container main body 71 via a connection pin 75.

  The container main body 71 that functions as a dust container is made of resin and is formed as a box-like member having an open upper part.

  The filter holder 72 is rotatable with respect to the container body 71 around the connection pin 75. The filter holder 72 is configured to be able to open and close the opening at the top of the container body 71. That is, the filter holder 72 also functions as a lid part of the container body 71. 2 shows a closed state of the container main body 71, and FIG. 5 shows an open state of the container main body 71. In the present embodiment, the upper surface portion 725 of the filter holder 72 is formed of a conductive material, and the other portions are formed of a nonconductive material such as resin or rubber. As the conductive material, for example, conductive resin (resin that is filled with carbon black or metal powder, processed to form a metal vapor deposition film on the surface), conductive rubber (carbon black or metal powder is used. It is preferable to employ a blended rubber).

  As shown in FIG. 5, the upper surface portion 725 of the filter holder 72 is formed with an inlet 701 and an outlet 702 that allow the inside and the outside of the dust container 7 to communicate with each other when the container body 71 is closed. The inflow port 701 is an opening through which air including dust sucked from the suction port 812 (see FIG. 1) and transferred through the dust transfer path 80 flows into the dust container 7. The outlet 702 is an opening through which the air after the dust is separated by the filter 73 flows out from the dust container 7. The inflow port 701 is provided at the front end portion of the upper surface portion 725, and the outflow port 702 is provided in the center portion of the upper surface portion 725. Although details will be described later, when the dust container 7 is attached to the main body housing 6, the dust transfer path 80 is connected to the inflow port 701 and the communication path 9 is connected to the outflow port 702.

  The filter holder 72 includes a frame 721 that protrudes downward from the upper surface portion 725 and is configured so that the filter 73 can be attached and detached. The filter 73 is configured to separate dust from air that has flowed into the container body 71 using a material having air permeability such as paper or nonwoven fabric. When a certain amount of dust adheres to the filter 73, the operator can open the container body 71 and remove the filter 73 from the frame 721 for replacement as shown in FIG.

  As shown in FIG. 6, ribs 723 are provided on the pair of left and right side portions 722 of the frame 721, respectively. The pair of ribs 723 protrude outward from the side surface portion 722 in the left-right direction, and substantially reach the container body 71 when the container body 71 is closed. In addition, as shown in FIG. 2, the rib 723 is formed in an arc shape extending substantially downward from the upper end of the side surface portion 722 in a side view, and is gradually curved and inclined backward as it goes downward. . Note that the upper end of the rib 723 is disposed slightly in front of the outflow port 702 in the front-rear direction.

  An operator may hold the hammer drill 1 in a posture in which the tip tool 19 faces downward to perform a machining operation. In such a case, since the front side (left side in FIG. 2) of the dust container 7 is disposed on the lower side, the dust not captured by the filter 73 in the dust container 7 moves downward by its own weight, and the front end. May accumulate in the vicinity of the inflow port 701 provided in the section, leading to a decrease in suction force. On the other hand, in the present embodiment, even when the front side of the dust container 7 is disposed on the lower side, the rib 723 can receive dust moving downward under its own weight, so that dust is generated in the vicinity of the inflow port 701. Accumulation can be suppressed. Further, when discarding the dust collected in the container body 71, the operator lifts the filter holder 72 as shown in FIG. Along with this, the arc-shaped rib 723 rotates around the connecting pin 75, so that dust accumulated on the rib 723 is smoothly guided into the container body 71. Therefore, dust disposal work can be performed efficiently.

  The container main body 71 is provided with a configuration for making the dust container 7 detachable from the main body housing 6. Specifically, as shown in FIG. 5, a rotation engagement portion 712 is provided at the upper rear end portion of the container main body 71, and a locking projection 713 is provided at the lower front end portion. The rotation engagement portion 712 is formed as a concave portion having a semicircular cross section corresponding to the rotation support portion 612 of the main body housing 6. The rotation engagement portion 712 engages with the rotation support portion 612 and causes the rotation support portion 612 to move. It is comprised so that rotation is possible as a center. The locking projection 713 is formed as a protrusion protruding forward, and is configured to be locked to the locking portion 613 of the main body housing 6. The operator engages the rotation engaging portion 712 with the rotation support portion 612 in a state where the front end portion of the dust container 7 is inclined downward, pushes up the front end portion, and the locking projection 713 becomes the locking portion 613. By engaging, the dust container 7 can be mounted on the main body housing 6 (see FIG. 2).

  Hereinafter, the communication path 9 and the conductive member 67 arranged in the internal region 60 of the main body housing 6 will be described in order.

  The communication path 9 will be described with reference to FIG. The communication path 9 is disposed in a rear region (a central region inside the box-shaped portion 61) in the front-rear direction of the inner region 60. The communication path 9 extends in the vertical direction, and is configured to allow the dust container 7 and the air flow path 151 of the hammer drill 1 to communicate with each other in a state where the dust collector 4 is mounted on the hammer drill 1. More specifically, the communication path 9 is a path that connects the outlet 702 of the dust container 7 and the intake port 15 of the hammer drill 1, and is defined by the cylindrical communication path forming portion 90. In the present embodiment, the communication path forming portion 90 is formed so as to be elastically deformable in the axial direction (vertical direction) as a whole. The communication path forming portion 90 is held by the main body housing 6 by fitting an upper end portion and a lower end portion formed of an elastic body into through holes 615 and 616 provided in the upper surface and the lower surface of the main body housing 6, respectively. . The flange portions formed at the upper end and the lower end of the communication path forming portion 90 both slightly protrude to the outside of the main body housing 6.

  When the dust container 7 is attached to the main body housing 6, the flange portion at the lower end of the communication path forming portion 90 is pressed in close contact with the periphery of the outlet 702 of the dust container 7 from above. When the dust collector 4 is mounted on the main body housing 11 of the hammer drill 1, the upper flange portion of the communication path forming portion 90 is pressed in close contact with the periphery of the intake port 15 of the main body housing 11 from below. Thereby, the inside of the dust container 7 and the air flow path 151 of the main body housing 11 are communicated with each other via the communication path 9.

  The conductive member 67 will be described with reference to FIG. The conductive member 67 is a member provided to prevent the dust container 7 from being charged. In the present embodiment, the conductive member 67 is configured as a metal plate (for example, a steel plate). The conductive member 67 is fixed to a support portion 618 formed integrally with the box-shaped portion 61 at the rear end portion of the box-shaped portion 61 with a screw. The conductive member 67 is connected to a conductive path 68 formed of conductive rubber.

  In the present embodiment, the conductive path 68 is generally formed in a string shape, and both end portions thereof are arranged so as to contact the conductive member 67 and the dust container 7, respectively. Specifically, the first end portion 681 of the conductive path 68 is supported by the support portion 618 so as to contact the conductive member 67. A part of the second end 682 of the conductive path 68 slightly protrudes downward from the through hole 617 on the lower surface of the box-shaped part 61, and when the dust container 7 is attached to the main body housing 6, the filter holder 72. Is pressed against the upper surface portion 725 from above. Thereby, the upper surface portion 725 formed of a conductive material and the conductive member 67 are electrically connected via the conductive path 68. Further, the second end 682 is interposed between the upper surface portion 725 and the lower surface portion of the box-shaped portion 61, so that mutual contact between the dust container 7 and the main body housing 6 is buffered. Thereby, rattling with respect to the main body housing 6 of the dust container 7 is suppressed.

  In the dust collector 4, static electricity is generated when dust is sucked together with air and collected in the dust container 7 via the dust transfer path 80, and the dust container 7 may be charged with static electricity. In the present embodiment, the static electricity charged in the dust container 7 escapes from the upper surface portion 725 through the conductive path 68 to the conductive member 67, so that the dust container 7 can be prevented from being charged with static electricity.

  Hereinafter, with reference to FIG. 1, the whole structure of the sliding part 8 is demonstrated easily. As shown in FIG. 1, the sliding part 8 includes a first transfer part 81 having a suction port 812 and a second transfer part 82 connected to the first transfer part 81 and held by the main body housing 6.

  The 1st transfer part 81 is a cylindrical member formed in the substantially L shape. A suction hood 811 formed so as to be able to cover the tip of the tip tool 19 is provided at one end of the first transfer portion 81. The suction hood 811 is provided with a suction port 812 through which the tip tool 19 can be inserted. Hereinafter, the end portion of the first transfer portion 81 provided with the suction hood 811 is referred to as a distal end portion, and the opposite end portion is referred to as a proximal end portion.

  The second transfer part 82 is a long member that is formed in a hollow shape and extends linearly. The 2nd transfer part 82 is arrange | positioned so that it may extend in the front-back direction in parallel with striking axis A1. The base end portion of the first transfer portion 81 is connected to the front end portion of the second transfer portion 82 so that the tip end portion is disposed upward. A part of the second transfer portion 82 including the rear end 85 is held by the main body housing 6 so as to be slidable in the front-rear direction, and is disposed in the inner region 60.

  Hereinafter, the detailed structure of the 2nd transfer part 82 is demonstrated. As shown in FIG. 8, in the present embodiment, the outline of the second transfer portion 82 is formed of an aluminum main body frame 821, and a resin left side portion 841 and right side portion 845. The main body frame 821 is a long member extending linearly. Each of the left side portion 841 and the right side portion 845 is a linear long member, and as shown in FIG. 4, the left side portion 841 and the right side portion 845 are respectively fitted in grooves formed on the left side portion and the right side portion of the main body frame 821. A left side surface and a right side surface 82 are formed. The cross-sectional shape of the second transfer portion 82 in the left-right direction as a whole is generally rectangular.

  As shown in FIG. 9, the left side portion 841 has a bolt 847 inserted into a through hole of the fixing portion 846 provided at the rear end portion and a through hole provided in the main body frame 821, and is fixed with a nut. It is fixed to the left rear end of the main body frame 821. The right side portion 845 is fixed to the right rear end portion of the main body frame 821 by a locking piece 844 provided at the rear end portion being locked in a locking hole provided in the main body frame 821. The left side 841 is fixed by the bolt 847 instead of the locking piece because the left side 841 is loaded with the locking unit 88 of the length adjusting unit 87 and the depth adjusting unit 870 described later. This is because it is necessary to fix to the main body frame 821 more firmly.

  The second transfer part 82 is configured to be slidably engageable with the main body housing 6. Specifically, as shown in FIG. 4, a pair of engagement recesses 822 that are spaced apart in the vertical direction and extend in the front-rear direction are provided on the left side of the main body frame 821. Similarly, a pair of engagement recesses 823 are also provided on the right side of the main body frame 821. The engaging recesses 822 and 823 are configured to be slidably engageable with guide rails 621 and 622 provided in the main body housing 6, respectively. With such a configuration, the sliding portion 8 is in a front-rear direction (second transfer portion) parallel to the striking axis A1 with respect to the main body housing 6 in a state where relative movement around the major axis of the second transfer portion 82 is restricted. 82 in the longitudinal direction).

  In the present embodiment, the sliding portion 8 is movable relative to the main body portion 5 between the most separated position indicated by a solid line in FIG. 1 and the closest position indicated by a two-dot chain line. The farthest position is the sliding portion 8 when the suction port 812 is farthest from the opening 620 of the main body housing 6 in the front-rear direction (long axis direction of the second transfer portion 82, sliding direction of the sliding portion 8). Is the position. The protruding length of the sliding portion 8 from the opening 620 (hereinafter simply referred to as the protruding length of the sliding portion 8) is the maximum, and the length of entry of the sliding portion 8 into the internal region 60 (hereinafter simply referred to as sliding). In other words, it can be rephrased as the position of the sliding portion 8 at which the moving length of the moving portion 8 is minimized. The closest position is the position of the sliding portion 8 when the suction port 812 is closest to the opening 620 in the front-rear direction. In other words, the position of the sliding portion 8 where the projecting length of the sliding portion 8 is the minimum and the entry length of the sliding portion 8 is the maximum.

  In the present embodiment, the rear end 85 of the sliding portion 8 is disposed in the cylindrical portion 62 when the sliding portion 8 is disposed at the most spaced position. On the other hand, when the sliding part 8 is disposed at the closest position, the rear end 85 of the sliding part 8 is located behind the communication path 9 (communication path forming part 90) in the rear end part of the box-shaped part 61. Be placed. That is, in the front-rear direction, the distance between the opening 620 and the rear end 85 when the sliding portion 8 is disposed at the closest position, rather than the distance between the opening 620 and the communication path forming portion 90. (In other words, the maximum entry length of the sliding portion 8 into the internal region 60) is longer.

  The second transfer portion 82 (more specifically, the main body frame 821) extends linearly in the front-rear direction (long axis direction of the second transfer portion 82) and penetrates the second transfer portion 82 (main body frame 821). And an internal passage 820. The internal passage 820 is configured such that a dust transfer path 80 that connects the suction port 812 and the dust container 7 can pass therethrough. In the present embodiment, the dust transfer path 80 is defined by the first transfer portion 81, the hose 800, and the hose connection portion 802.

  As shown in FIG. 1, the base end portion of the first transfer portion 81 is inserted and fixed to the front end portion of the internal passage 820. One end portion (front end portion) of the hose 800 is connected to the base end portion of the first transfer portion 81. The hose 800 is configured to be extendable and contractible by covering with a compression coil spring 801. The other end portion (rear end portion) of the hose 800 is coupled to one end portion of the hose connection portion 802. The hose connection portion 802 is a cylindrical member formed in an L shape in side view. The other end portion of the hose connection portion 802 protrudes downward through a through hole 617 (see FIG. 2) formed in the lower surface of the front end portion of the box-shaped portion 61, and the dust container 7 is attached to the main body housing 6. And inserted into the dust container 7 from the inlet 701. Thereby, the dust transfer path 80 extending inside the first transfer portion 81, the hose 800, and the hose connection portion 802 communicates with the internal space of the dust container 7. Note that the sliding portion 8 is always urged forward by a compression coil spring 801 externally attached to the hose 800, that is, in a direction protruding from the main body housing 6 (opening portion 620), that is, forward.

  As the sliding portion 8 moves relative to the main body housing 6 in the front-rear direction, the arrangement of the hose 800 and the hose connection portion 802 with respect to the sliding portion 8 changes. Specifically, as shown by the solid line in FIG. 1, when the sliding portion 8 is disposed at the most distant position, the rear end 85 of the sliding portion 8 is disposed in the cylindrical portion 62. For this reason, the hose 800 is disposed in the internal passage 820 over the entire length from the front end to the rear end. On the other hand, as shown by a two-dot chain line, when the sliding portion 8 is disposed at the closest position, the rear end 85 of the sliding portion 8 is disposed at the rear end portion of the inner region 60 (box-shaped portion 61). Is done. For this reason, a hose 800 that is shrunk in the front portion of the internal passage 820 is disposed, and a hose connection portion 802 that is bent downward and connected to the dust container 7 is disposed in the central portion of the internal passage 820. Therefore, the second transfer unit 82 is provided with a configuration for avoiding interference with the dust transfer path 80. Furthermore, as described above, since the communication path 9 is provided in the central region inside the box-shaped portion 61, the second transfer portion 82 has the sliding portion 8 disposed at the closest position. A configuration for avoiding interference with the communication path 9 is also provided. Hereinafter, these configurations will be described.

  As shown in FIG. 8, the main body frame 821 has a notch 835 formed in the upper portion and a groove portion 831 formed in the lower portion.

  The notch 835 has a U-shaped upper part of the main body frame 821 (a portion on the upper side of the internal passage 820) from the rear end of the main body frame 821 (ie, the rear end of the sliding portion 8) 85 to the front. It is a cut part. The lower end of the notch 835 is connected to the internal passage 820. The front end of the cutout portion 835 (the portion cut deepest from the rear end 85) is forward of the position where the front end of the communication path forming portion 90 is disposed when the sliding portion 8 is disposed at the closest position. Is set. That is, the distance from the front end to the rear end 85 of the notch 835 is longer than the distance from the front end to the rear end 85 of the communication path forming portion 90 when the sliding portion 8 is disposed at the closest position. Further, the distance from the front end to the rear end 85 of the notch 835 is shorter than the distance from the opening 620 to the rear end 85 when the sliding portion 8 is disposed at the most spaced position.

  The groove 831 extends linearly from the front end to the rear end of the main body frame 821. The upper end of the groove 831 is connected to the internal passage 820. The rear portion of the groove 831 is formed wider than the front portion (the length in the left-right direction). Hereinafter, the rear portion of the groove 831 is referred to as a wide portion 832. The front end of the wide portion 832 is a portion of the hose connection portion 802 that extends downward (hereinafter referred to as a downward extension portion 803 (see FIG. 2)) when the sliding portion 8 is disposed at the closest position. It is set ahead of the position where the front end is arranged. The wide portion 832 has substantially the same width (length in the left-right direction) as the aforementioned notch portion 835. The widths of the wide part 832 and the notch part 835 are set to be larger than at least the outer diameter of the thickest part in the left-right direction of the communication path forming part 90 and the downward extending part 803.

  With this configuration, as shown in FIG. 2 and FIG. 8, the second transfer portion 82 penetrates the second transfer portion 82 in the vertical direction, and in the front-rear direction (long axis direction of the second transfer portion 82, sliding In the sliding direction of the portion 8, a first space portion 837 extending from the front end to the rear end 85 of the notch 835 is formed. In the present embodiment, the first space portion 837 has a contour line of the notch portion 835 when viewed from the side (upper side) where the hammer drill 1 is disposed in the extending direction (vertical direction) of the communication path forming portion 90. It can also be said that it is a space region defined by the rear end 85, and is a space region that vertically penetrates the second transfer portion 82 and is open on the rear end 85 side. The first space part 837 is a space part for avoiding interference between the sliding part 8 and the communication path 9 (communication path forming part 90) when the sliding part 8 is arranged at the closest position. In addition, it includes at least a region where the communication path forming portion 90 is disposed when the sliding portion 8 is disposed at the closest position.

  Further, the second transfer portion 82 extends upward from the lower surface of the second transfer portion 82 and has a wide width in the front-rear direction (the long axis direction of the second transfer portion 82 and the sliding direction of the sliding portion 8). A second space portion 838 extending from the front end of the portion 832 to the rear end 85 is formed. When viewed from the side (lower side) where the dust container 7 is arranged in the extending direction (vertical direction) of the communication path forming unit 90, the second space 838 is formed by the outline of the wide portion 832 and the rear end 85. It can also be said that it is a defined space region that extends from the wide portion 832 to the internal passage 820 and is open on the rear end 85 side. The second space portion 838 is a space portion for avoiding interference between the sliding portion 8 and the dust transfer path 80 (downward extending portion 803) when the sliding portion 8 is disposed at the closest position. Thus, it includes at least a region where the downward extending portion 803 is disposed when the sliding portion 8 is disposed at the closest position. Note that the second space portion 838 is a space region partially overlapping with the first space portion 837.

  Hereinafter, the operation of the first space portion 837 and the second space portion 838 will be described. When the sliding part 8 moves rearward relative to the main body housing 6 from the most distant position to the closest position, the rear end 85 of the sliding part 8 is two points from the position shown by the solid line in FIG. Move to the position indicated by the chain line. In this process, when the rear end 85 reaches the front end of the downward extending portion 803, the downward extending portion 803 enters the second space portion 838 from the rear end 85 side. For this reason, the sliding part 8 can move further back without interfering with the downward extending part 803. Further, when the rear end 85 reaches the front end of the communication path forming portion 90, the communication path forming portion 90 enters the first space portion 837 from the rear end 85 side. For this reason, the sliding part 8 can move further back without interfering with the communication path forming part 90. When the sliding portion 8 is disposed at the closest position, the downward extending portion 803 and the communication path forming portion 90 are disposed at the front end portions of the second space portion 838 and the first space portion 837, respectively. Thus, by providing the first space portion 837 and the second space portion 838, even when the sliding portion 8 is disposed at the closest position, the sliding portion 8, the dust transfer path 80, and the communication path 9 Interference can be avoided.

  Hereinafter, the length adjusting unit 87 and the depth adjusting unit 870 will be described with reference to FIGS. 3, 9, and 10. The length adjusting portion 87 is a portion configured to be able to adjust the protruding length of the sliding portion 8 at the start of the machining operation. The depth adjusting unit 870 is a part configured to be able to adjust the depth of processing performed on the workpiece by the tip tool 19.

  Each of the length adjusting portion 87 and the depth adjusting portion 870 is held by a pair of guide rails 86 so as to be relatively movable with respect to the sliding portion 8 in the long axis direction (front-rear direction), and the pair of guide rails 86 can be locked. As shown in FIG. 3, the pair of guide rails 86 are provided on the left side portion 841 and are spaced apart in the vertical direction and extend in the front-rear direction substantially parallel to each other. As shown in FIG. 9, a gap is provided between the guide rail 86 and the left side surface 828 of the main body frame 821 in the left-right direction. Each of the guide rails 86 has a tooth portion 861 including a plurality of protrusions arranged at equal intervals in a line in the front-rear direction. A locking portion 876 of a length adjusting portion 87, which will be described later, and a locking portion 876 of a depth adjusting portion 870 can be engaged with the tooth portion 861, respectively.

  In the present embodiment, the length adjustment unit 87 includes substantially the same configuration as the depth adjustment unit 870 and an additional configuration. Specifically, each of the length adjustment unit 87 and the depth adjustment unit 870 includes a locking unit 88 including a holding member 871, a pressing member 875, and an urging spring 878. The length adjustment unit 87 further includes an operation lever 881. First, the locking unit 88 (holding member 871, pressing member 875, biasing spring 878), which is a configuration common to the length adjusting unit 87 and the depth adjusting unit 870, will be described. In the following description, the locking unit 88 of the length adjusting unit 87 is referred to, but the locking unit 88 of the depth adjusting unit 870 has substantially the same configuration although the shape is slightly different.

  As shown in FIGS. 3, 9, and 10, the holding member 871 is held by a pair of guide rails 86 so as to be movable relative to the sliding portion 8 in the front-rear direction. More specifically, the holding member 871 is disposed on the left side of the guide rail 86 so that the left side surface portion 872 having a rectangular shape in side view straddles the pair of upper and lower guide rails 86, and the other portions are the guide rail 86 and the main body frame 821. Between the left side surface 828 and the left side surface 828. The pressing member 875 is held by the holding member 871 so as to be slidable in the left-right direction while being urged to the left by the urging spring 878. The main body portion of the pressing member 875 is disposed between the pair of guide rails 86 in the vertical direction, and the distal end portion (left end portion) thereof is always leftward from the opening 874 provided in the holding member 871. It protrudes. Further, the pressing member 875 has a locking portion 876 configured to be engageable with the tooth portion 861 of the guide rail 86 at both upper and lower end portions of the right end portion. The locking portion 876 is normally engaged with the tooth portion 861 by the pressing member 875 being biased leftward by the biasing force of the biasing spring 878. Thereby, the locking unit 88 is positioned in the major axis direction (front-rear direction) of the second transfer portion 82.

  When the pressing member 875 is pressed to the right (inward direction of the second transfer portion 82) by the operator, the pressing member 875 moves to the right against the urging force of the urging spring 878, and against the tooth portion 861. The engaged state of the locking portion 876 is released. The operator moves the locking unit 88 along the guide rail 86 and then releases the pressure on the pressing member 875 so that the locking portion 876 is engaged with another position on the tooth portion 861. it can. In this way, the operator can change the arrangement of the locking units 88 in the major axis direction (front-rear direction) of the second transfer portion 82.

  The locking unit 88 constituting the depth adjusting portion 870 is disposed at any position of the portion of the guide rail 86 that is exposed to the outside from the main body housing 6 (that is, the portion that protrudes forward from the opening 620). can do. On the other hand, the locking unit 88 of the length adjusting portion 87 is disposed inside the main body housing 6 and is not exposed to the outside from the main body housing 6. Specifically, as shown in FIG. 9, a movement restricting portion 623 that protrudes to the right is provided inside the left side portion of the cylindrical portion 62. As described above, the sliding portion 8 is urged forward by the compression coil spring 801 packaged on the hose 800. Therefore, the locking unit 88 locked to the guide rail 86 inside the main body housing 6 moves forward together with the sliding portion 8, abuts against the movement restricting portion 623, and further forward movement is restricted. The That is, in the front-rear direction, the locking unit 88 of the length adjusting unit 87 is normally held at a position (hereinafter referred to as an initial position) that abuts against the movement restricting unit 623 from the rear by the urging force of the compression coil spring 801. .

  An opening 624 is formed on the left side of the cylindrical portion 62 at a position facing the locking unit 88 disposed at the initial position. The operation lever 881 is disposed so as to cover the opening 624, and is held by the cylindrical portion 62 at the front end portion so as to be rotatable in the left-right direction via the pin 882. When the operation lever 881 is pressed rightward from the outside, the pressing member 875 is pressed rightward by the rear end portion of the operation lever 881. Thereby, the engagement state of the locking portion 876 with respect to the tooth portion 861 is released.

  The adjustment of the protruding length by the length adjusting unit 87 is performed as follows. While the operator presses the operation lever 881 of the length adjusting portion 87 with one hand, the operator moves the sliding portion 8 relative to the main body housing 6 with respect to the main body housing 6 with the other hand, thereby moving the tip tool 19. What is necessary is just to adjust the protrusion length of the sliding part 8 so that the front-end | tip part may be covered with the suction hood 811. At this time, the locking unit 88 is held between the operation lever 881 and the main body frame 821 in a state in which the locking with respect to the guide rail 86 is released. Move relative to the direction. When the operator releases the pressing of the operation lever 881, the locking unit 88 is again locked to the guide rail 86 and disposed at the initial position, so that the protruding length of the sliding portion 8 is determined. The fixing portion 846 provided at the rear end portion of the left side portion 841 functions as a retaining portion of the sliding portion 8 by abutting against the rear end of the locking unit 88 of the length adjusting portion 87, and slides. The most spaced position of the part 8 is defined.

  In the present embodiment, the second transfer portion 82 has a notch portion 835 provided in the upper portion of the main body frame 821 in the cylindrical portion 62 when the sliding portion 8 is disposed at the most separated position. It is configured to be arranged. That is, when the sliding portion 8 is disposed at the most distant position, the first space portion 837 is disposed inside the cylindrical portion 62.

  Moreover, adjustment of the processing depth with respect to the workpiece by the depth adjusting unit 870 is performed as follows. When the processing operation proceeds with the suction hood 811 pressed against the workpiece, the sliding portion 8 is pushed into the main body housing 6 against the urging force of the compression coil spring 801. The locking unit 88 moves together with the sliding portion 8 while being locked to the guide rail 86. In this process, when the left side surface portion 872 of the depth adjusting portion 870 comes into contact with the front end (opening portion 620) of the cylindrical portion 62, the sliding portion 8 further moves relative to the body housing 6 rearward. Is regulated. That is, the depth of processing on the workpiece corresponds to the distance from the opening 620 to the rear end of the left side surface portion 872. Therefore, the operator may adjust the position of the locking unit 88 on the guide rail 86 according to the above-described procedure according to the desired processing depth. When the locking unit 88 of the depth adjusting portion 870 is disposed at the front end of the guide rail 86, the sliding portion 8 can move to the closest position with respect to the main body housing 6.

  As described above, in the dust collector 4 of the present embodiment, when the sliding portion 8 is disposed at the closest position, that is, the sliding portion 8 is the most inside the main body portion 5 (main body housing 6). When entering, the rear end 85 of the sliding portion 8 is disposed at a position farther from the opening 620 than the communication passage 9 (communication passage forming portion 90) in the inner region 60. On the other hand, by providing the first space portion 837 in the sliding portion 8, interference with the communication path 9 can be avoided even when the sliding portion 8 is disposed at the closest position. Therefore, the length of the sliding portion 8 is also applicable to a longer tip tool 19 than the conventional configuration in which the sliding portion 8 is set so as not to reach the communication path 9 when the sliding portion 8 is disposed at the closest position. A possible dust collector 4 is realized.

  The first space portion 837 penetrates the sliding portion 8 in the vertical direction intersecting the sliding direction (front-rear direction) of the sliding portion 8 and is a sliding portion as a space portion continuous to the rear end 85 in the front-rear direction. 8 and includes at least a region where the communication passage 9 is disposed when the sliding portion 8 is disposed at the closest position. As described above, by realizing the configuration for avoiding interference with the communication path 9 as the first space portion 837 formed in the sliding portion 8, compared to a case where such a configuration is realized by some member. The whole moving part 8 can be made into a simple structure.

  The first space portion 837 is disposed in the inner region 60 when the sliding portion 8 is disposed at the most separated position. For this reason, it is possible to prevent dust from entering the inside of the sliding portion 8 and the main body portion 5 through the first space portion 837.

  In the present embodiment, a second space portion 838 is provided that partially overlaps the first space portion 837 and extends forward of the first space portion 837. Since the upper part is closed by the main body frame 821 in front of the notch part 835, when the sliding part 8 is arranged at the most distant position, the upper end part of the second space part 838 is arranged in the inner region 60. Is done. Thereby, possibility that dust will approach from the upper end part of the 2nd space part 838 is also reduced.

  In the present embodiment, the main body 5 can be released from an engagement portion 63 that can be slidably engaged with the guide rail 17 of the hammer drill 1, and a state in which engagement by the engagement portion 63 is maintained according to a manual operation by the operator And an operation member 64 that can be switched between different states. Since both the engaging part 63 and the operation member 64 are provided on the upper side where the hammer drill 1 is disposed, the attaching / detaching work can be facilitated. It is considered that the operator often places the thumb on the upper side when performing the attaching / detaching operation of the dust collector 4 with respect to the hammer drill 1. Since the operation member 64 is configured to be pressed downward, the operation becomes easier.

  In the present embodiment, the sliding portion 8 is disposed substantially parallel to and spaced apart from each other and extends in the front-rear direction, and the guide rail 86 is relative to the sliding portion 8 in the front-rear direction. The locking unit 88 is configured to be held so as to be movable and to be locked to the guide rail 86. A length adjusting portion 87 that can adjust the protruding length of the sliding portion 8 according to the length of the tip tool 19 that is actually used by the locking unit 88, and a desired workpiece with respect to the workpiece by the tip tool 19 A depth adjusting unit 870 that can adjust the entry length of the sliding unit 8 according to the amount of processing is realized. Further, since the locking unit 88 is held by the pair of guide rails 86, the locking unit 88 can stably move relative to the front and rear direction along the guide rails 86.

  The dust collector 4 of the present embodiment includes an electrical component (dust collecting motor or fan) with a metal region in order to collect dust using the airflow formed by the dust collecting fan 25 of the hammer drill 1. Not. Instead, the dust collecting device 4 requires a communication passage 9 for communicating the dust container 7 for storing the dust with the air flow path 151 of the hammer drill 1. Therefore, the main body 5 is provided with an internal region 60 disposed between the hammer drill 1 and the dust container 7 in a state where the dust collecting device 4 is mounted on the hammer drill 1. Is arranged. In the present embodiment, the conductive member 67 is disposed in the same internal region 60 as the communication path 9 and is connected to the dust container 7 via the conductive path 68, so that the dead space in the internal region 60 can be effectively used and dust can be generated. Static electricity generated in the collecting process can be released from the dust container 7 to the conductive member 67. Thereby, charging of the dust container 7 can be effectively prevented.

  In particular, when the sliding portion 8 moves in the inner region 60 as in the present embodiment, a relatively large dead space is formed in the inner region 60 in order to secure the moving space. Therefore, in the dust collector 4 configured such that the sliding portion 8 moves relative to the main body portion 5 within the internal region 60, the conductive member 67 is disposed in the internal region 60, thereby providing a larger dead space. Use effect is obtained.

  The dust container 7 is configured as a container that can be attached to and detached from the internal region 60 (main body housing 6), and has an upper surface portion 725 formed of a conductive material. The conductive path 68 is formed of conductive rubber, and is configured to electrically connect the upper surface portion 725 and the conductive member 67 in a state where the dust container 7 is attached to the main body housing 6. With this configuration, it is possible to easily discard dust, and it is possible to eliminate the need to separately connect the upper surface portion 725 and the conductive member 67 when the dust container 7 is mounted. Further, the conductive path 68 is configured to buffer the mutual contact between the dust container 7 and the main body housing 6 by the second end 682. Thereby, shakiness of the dust container 7 with respect to the main body housing 6 can be suppressed.

[Second Embodiment]
Hereinafter, the hammer drill 100 and the dust collector 40 according to the second embodiment will be described with reference to FIGS. 11 and 12. Most of the configuration of the hammer drill 100 of the present embodiment is the same as the hammer drill 1 of the first embodiment. Moreover, the main part of the structure of the dust collector 40 is the same as the dust collector 4 of 1st embodiment. Therefore, in the following, the same components are denoted by the same reference numerals, description thereof is omitted or simplified, and differences from the first embodiment are mainly described.

  First, the attachment / detachment structure of the hammer drill 100 and the dust collector 40 will be described. As in the first embodiment, a guide rail 17 is provided on the front side portion of the lower end portion of the main body housing 110 of the hammer drill 100. Moreover, the engaging part 63 which has the guide groove 631 is provided in the upper end part of the main body housing 600 of the dust collector 40 (refer FIG. 2 and FIG. 4). On the other hand, as shown in FIGS. 11 and 12, as a configuration for restricting the relative movement in the front-rear direction between the main body housing 11 and the main body housing 6 in a state where the engaging portion 63 and the guide rail 17 are engaged. The engagement recess 112 and the protrusion 645 are slightly different from those in the first embodiment.

  Specifically, the engagement recess 112 of the hammer drill 100 is provided not in the lower front end portion of the main body housing 110 but in the central portion of the lower end portion, immediately in front of the intake port 15. The protrusion 645 that can be engaged with the engagement recess 112 is disposed immediately in front of the communication path forming portion 90 in the inner region 60 of the main body housing 600. In a state where the engaging portion 63 and the guide rail 17 are engaged, the dust collecting device 40 is moved from the front to the rear with respect to the hammer drill 100, and when it reaches a predetermined position, the protruding portion 645 engages with the engaging recess 112. To do. Although illustration is omitted, an operation member for moving the protrusion 645 in the vertical direction is disposed so as to be exposed on the left side of the main body housing 600.

  Next, the configuration of the dust collector 40 will be described. The dust collector 40 includes a main body portion 5 including a main body housing 600 and a dust container 7, and a sliding portion 84. The main body housing 600 has substantially the same configuration as that of the main body housing 6 of the first embodiment. Configuration. Specifically, the dust collector 40 is provided with a first conductive path 680 for allowing the electrostatic charge charged in the dust container 7 to escape to the hammer drill 100.

  The first conductive path 680 is made of conductive rubber, like the conductive path 68 of the first embodiment. The first conductive path 680 is generally formed in a string shape. The first end portion 683 and the second end portion 684 that are both ends of the first conductive path 680 are fitted in through holes formed in the upper surface portion and the lower surface portion of the box-shaped portion 61, respectively. A part of the first end portion 683 protrudes slightly upward from the upper surface portion of the box-shaped portion 61. A part of the second end portion 684 protrudes slightly downward from the lower surface portion of the box-shaped portion 61. When the dust container 7 is attached to the main body housing 6, the second end portion 684 closely contacts the upper surface portion 725 of the filter holder 72 from above. Pressed into the shape.

  On the other hand, a through hole 113 is formed at the lower end of the main body housing 110 of the hammer drill 100 at a position facing the first end 683 when the dust collector 40 is mounted on the hammer drill 100. The through hole 113 is disposed on the front side of the intake port 15 and on the rear side of the support 111 in the front-rear direction. The support 111 is a metal member that is provided in the main body housing 110 and supports a part of the internal mechanism of the main body 10. In the present embodiment, the support 111 supports the front bearing among the two bearings attached to the front and rear ends of the output shaft 21. A second conductive path 685 made of conductive rubber is fitted into the through hole 113 with the upper end portion and the lower end portion protruding vertically from the through hole 113. The upper end portion of the second conductive path 685 protruding into the main body housing 110 is in close contact with the rear surface of the support 111 from the rear.

  When the dust collector 40 is attached to the hammer drill 100, the first end 683 of the first conductive path 680 provided in the dust collector 40 is pressed against the second conductive path 685 in a close contact manner from below. As a result, the upper surface portion 725 of the dust container 7 formed of a conductive material and the metal support 111 are electrically connected via the first conductive path 680 and the second conductive path 685. Accordingly, when static electricity is charged in the dust container 7, the static electricity escapes from the upper surface portion 725 through the first and second conductive paths 680 and 685 to the support 111, thereby suppressing the static electricity from being charged in the dust container 7. can do.

  Moreover, in the dust collector 40 of this embodiment, the length of the long-axis direction (front-back direction) of the sliding part 84 is formed shorter than the sliding part 8 of the dust collector 4 of 1st embodiment. . Although not shown, in detail, when the sliding portion 84 is disposed at the closest position, the rear end of the sliding portion 84 is on the front side of the communication passage 9 (communication passage forming portion 90) and the hose. It is arranged behind the connection part 802. For this reason, the sliding portion 84 is provided with a configuration (groove portion 831) for avoiding interference with the hose connecting portion 802, as in the first embodiment. A configuration for avoiding interference with the passage 9 is not particularly provided.

  In the dust collector 40, the configuration for adjusting the protruding length of the sliding portion 84 (the guide rail, the locking unit, and the operation lever) is different from that of the first embodiment, but the description here is omitted. .

  The correspondence between each component of the above embodiment and each component of the present invention is shown below. The dust collector 4 is a configuration example corresponding to the “dust collector” of the present invention. The main body portion 5 and the sliding portion 8 are configuration examples corresponding to the “main body portion” and the “sliding portion” of the present invention, respectively. The internal region 60, the dust container 7, and the opening 620 are configuration examples corresponding to the “internal region”, “dust storage region”, and “opening” of the present invention, respectively. The suction port 812 and the dust transfer path 80 are configuration examples corresponding to the “suction port” and the “dust transfer path” of the present invention, respectively. The communication path 9 is a configuration example corresponding to the “communication path” of the present invention. The rear end 85 of the sliding portion 8 is a configuration example corresponding to the “innermost end” of the present invention. The first space portion 837 is a configuration example corresponding to the “interference avoidance portion” and the “space portion” of the present invention. The engagement part 63 and the operation member 64 are configuration examples of the “engagement part” and “operation member” of the present invention, respectively. The pair of guide rails 86 and the locking unit 88 are configuration examples of the “pair of guide rails” and “positioning member” of the present invention, respectively. The hammer drill 1, the main body housing 11, and the dust collecting fan 25 are configuration examples of the “work tool”, “tool main body”, and “fan” of the present invention, respectively.

  The above embodiment is merely an example, and the dust collector and the work tool according to the present invention are not limited to the configurations of the dust collectors 4 and 40 and the hammer drills 1 and 100 illustrated. For example, the changes exemplified below can be added. In addition, only one or a plurality of these changes are adopted in combination with the dust collectors 4 and 40 and the hammer drills 1 and 100 shown in the embodiments or the invention described in the claims. sell.

  The dust collectors 4 and 40 may be applied to work tools other than the hammer drills 1 and 100. Specifically, the present invention can be applied to a work tool in which it is desirable to adjust the protruding length of the sliding portions 8 and 84 according to the length of the tip tool 19. Examples of such work tools include work tools (vibrating drills, electric drills, etc.) for performing drilling work.

  The engagement mechanism between the dust collectors 4 and 40 and the hammer drill 1 or 100 or other work tool is not limited to the combination of the guide rail 17 and the engagement portion 63 exemplified in the above embodiment. For example, an engagement mechanism composed of a combination of a hook and an engagement hole can be employed. In addition, the member for switching between the state where the dust collectors 4, 40 and the hammer drill 1, 100 or other work tools are kept engaged and the state where the engagement is released is from the viewpoint of improving operability. Like the operation member 64 of the first embodiment, it is preferably provided on the same side as the engagement mechanism. In the first embodiment, the operation member 64 is disposed at the upper front end portion of the main body 5 so as to correspond to the lower front end portion of the hammer drill 1, but to correspond to the lower rear end portion of the hammer drill 1, You may arrange | position at the upper rear end part of the main-body part 5. FIG.

  Moreover, the attachment / detachment structure in the dust collectors 4 and 40 is not necessarily provided in the main body 5, and may be provided in a part different from the main body 5, or separate from the dust collectors 4 and 40. May be provided. For example, the dust collectors 4 and 40 may be attached to the tool main body of the hammer drill 1 or 100 or other work tool using a belt with a fastener or an annular member formed of a flexible material such as rubber. Good.

  In the above embodiment, the dust transfer path 80 is defined by the first transfer portion 81, the hose 800, and the hose connection portion 802. However, the dust transfer path 80 only needs to be configured to be able to transfer dust together with air from the suction port 812 to the dust container 7. For example, the dust transfer path 80 is formed only by a hose connecting the suction port 812 and the dust container 7. Also good. The dust container 7 is not limited to a configuration that can be attached to and detached from the main body housing 6, and may be provided integrally with the main body housing 6. In addition, as long as the dust container 7 is configured to be able to separate and collect dust transferred from the dust transfer path 80 from the air, the configuration can be changed as appropriate.

  The shape and arrangement of the communication passage 9 arranged in the internal region 60 may be appropriately changed according to the arrangement of the outlet 702 of the dust container 7 and the inlet 15 of the hammer drill 1. For example, the communication path 9 may extend obliquely with respect to the vertical direction, or at least a part thereof may be curved. In the sliding part 8, the structure for avoiding interference with the communication path 9 (communication path formation part 90) is not restricted to the 1st space part 837, You may change suitably. The first space portion 837 is a space portion including at least a region where the communication path 9 (communication path forming portion 90) is disposed when the sliding portion 8 is disposed at the closest position. As long as the rear end 85 side is open. As long as this condition is satisfied, for example, the shape and arrangement of the notch 835 that defines the first space 837 and the wide portion 832 of the groove 831 may be changed.

  Further, in order to reduce the possibility of dust entering the sliding portion 8 and the main body portion 5, the first space portion 837 has at least an upper end portion when the sliding portion 8 is at the most spaced position. Is preferably arranged in the inner region 60, ie in the main body housing 6. However, it is not excluded that the first space portion 837 is exposed to the outside of the main body housing 6 when the sliding portion 8 is at the most distant position. Therefore, the first space portion 837 may be formed as a space portion that extends over the entire length of the main body frame 821 in the front-rear direction and penetrates the main body frame 821 in the vertical direction, for example. Specifically, for example, the second transfer portion 82 includes a pair of left and right elongated members that extend in the front-rear direction and that can slide-engage with the main body housing 6, and these members. You may form with the connection member connected suitably.

  Only one of the length adjustment unit 87 and the depth adjustment unit 870 of the dust collector 4 may be provided, or both may be omitted. Further, the configurations of the guide rail 86, the locking unit 88, and the operation lever 881 may be changed as appropriate. For example, the locking unit 88 may be configured to be movable and lockable along one guide rail instead of the pair of guide rails 86.

  From the viewpoint of suppressing the charging of the dust container 7, the discharge path of the static electricity (the conductive member 67 and the support 111 of the hammer drill 100) is connected to the conductive path (conductive path 68, first and second conductive paths 680, 685). It is preferable to make an electrical connection via. However, such a configuration is not necessarily provided. Moreover, the shape of the conductive member 67 and the conductive path 68 of the dust collector 4 and the arrangement in the internal region 60 can be changed as appropriate. For example, the dust container 7 and the conductive member 67 may be connected via a plurality of conductive paths instead of the single conductive path 68. The hammer drill 1 and the dust collector 4 may be provided with the first and second conductive paths 680 and 685 of the second embodiment in place of the conductive member 67 and the conductive path 68. Instead of the support 111, a metal motor 20 housing or the like may be employed as a static electricity release destination in the hammer drill 100. Instead of the first conductive path 680, the dust collector 40 may be provided with the conductive member 67 and the conductive path 68 of the first embodiment. The upper surface portion 725, the conductive member 67, the conductive path 68, the first and second conductive paths 680 and 685 may be formed of a material having conductivity other than those exemplified in the above embodiment.

  In the dust container 7, the portion formed of the conductive material is not limited to the upper surface portion 725, and may be another portion (for example, the frame 721). Moreover, the dust container 7 does not necessarily need to be provided with a portion formed of a conductive material. In this case, for example, a configuration in which static electricity is released from the dust container 7 to the conductive member 67 and the support 111 may be realized by disposing a part of the conductive path 68 and the first conductive path 680 inside the dust container 7. .

As in the above-described embodiment, a portion where the dust transfer path 80 extends in the direction intersecting the sliding direction (front-rear direction) of the sliding portion 8 (specifically, the lower side where the dust container 7 is disposed). When including, it is preferable that the sliding part 8 includes the structure which avoids interference with the dust transfer path 80 in addition to the communication path 9 (communication path formation part 90). From this point of view, the following aspects are constructed. In addition, only one or a plurality of the following modes can be used in combination with the invention described in each claim.
[Aspect 1]
The dust transfer path includes a first portion that extends in the first direction in the sliding portion, and a second portion that extends in the second direction and connects the first portion and the dust containing region. ,
The second part is disposed between the communication path and the opening in the first direction,
The sliding portion includes a transfer path interference avoiding portion configured to avoid interference with the second portion when the sliding portion is disposed at the closest position.
[Aspect 2]
In the first aspect, the transfer path interference avoiding unit extends in the second direction from the side on which the dust accommodating area is disposed toward the side on which the work tool is disposed, and in the first direction. It is formed in the sliding part as a space part continuous to the innermost end,
The transfer path interference avoiding portion includes at least a region where the second portion is disposed when the sliding portion is disposed at the closest position.

DESCRIPTION OF SYMBOLS 1,100: Hammer drill 10: Main-body part 11, 110: Main body housing 12: Tool holder 111: Support body 113: Through-hole 13: Handle 131: Handle housing 133: Power supply cable 135: Trigger 15: Inlet 151: Air flow path 17: Guide rail 18, 112: Engaging recess 19: Tip tool 20: Motor 21: Output shaft 23: Cooling fan 25: Dust collecting fan 27: Drive gear 31: Motion conversion mechanism 33: Blowing element 35: Rotation transmission mechanism 4 40: Dust collector 5: Main body part 6, 600: Main body housing 60: Internal region 61: Box-shaped part 611: Projection part 612: Rotating support part 613: Locking part 615, 616, 617, 618: Through hole 62: cylindrical part 620: opening 621, 622: guide rail 623: movement restricting part 624: opening 63: engaging part 631: guy Groove 64: operating member 640: accommodating portion 641: biasing spring 642: pressing portion 643, 645: protrusion 67: conductive member 68: conductive path 680: first conductive path 681, 683: first end 682, 684 : Second end 685: Second conductive path 7: Dust container 701: Inlet 702: Outlet 71: Container body 712: Rotating engagement part 713: Locking protrusion 72: Filter holder 721: Frame 722: Side surface Part 723: Rib 725: Upper surface part 73: Filter 75: Connection pin 8, 84: Sliding part 80: Dust transfer path 800: Hose 801: Compression coil spring 802: Hose connection part 803: Lower extension part 81: First transfer Part 811: suction hood 812: suction port 82: second transfer part 820: internal passage 821: body frame 822, 823: engagement recess 828: left side 831: groove part 832: wide part 835: cut Portion 837: first space portion 838: second space portion 841: left side portion 844: locking piece 845: right side portion 846: fixing portion 847: bolt 85: rear end 86: guide rail 861: tooth portion 87: length Adjustment part 870: Depth adjustment part 88: Locking unit 871: Holding member 872: Left side part 874: Opening part 875: Pressing member 876: Locking part 878: Energizing spring 881: Operation lever 882: Pin 9: Communication path 90: Communication path forming part A1: Stroke shaft

Claims (7)

It is configured to be attachable to and detachable from a work tool that drives a tip tool to perform a work on a workpiece, and is configured to collect dust generated in the work using an air flow formed by the work tool. A dust collector,
A dust storage area configured to be attachable to and detachable from the work tool and configured to store the dust, and the work tool and the dust storage area in a state where the dust collector is mounted on the work tool. A main body portion including an inner region disposed between and an opening for communicating the inner region with the outside;
It is formed in a long shape, and a part of the main body is slidable in a predetermined first direction in a state where a part protrudes from the opening to the outside of the main body and a part is disposed in the inner region. A sliding part that is held, and has a dust suction port, and a sliding part that connects the suction port and the dust storage area and has at least a part of a dust transfer path through which the dust is transferred; ,
The air flow provided in the dust storage area and the work tool with the dust collector attached to the work tool, extending in a second direction intersecting the first direction in the inner area. A communication path configured to communicate with the flow path of
In the first direction, the sliding portion is located between the most distant position where the suction port is farthest from the opening and the closest position where the suction port is closest to the opening. Relative movement is possible,
When the sliding portion is disposed at the closest position, the opening and an innermost end that is an end of the sliding portion disposed in the innermost portion of the main body with respect to the opening. The distance in the first direction between is longer than the distance in the first direction between the opening and the communication path,
The dust collecting apparatus according to claim 1, wherein the sliding portion includes an interference avoiding portion configured to avoid interference with the communication path when the sliding portion is disposed at the closest position. It is a dust collector of Claim 1, Comprising:
The interference avoiding portion is formed in the sliding portion as a space portion that penetrates the sliding portion in the second direction and continues to the innermost end in the first direction.
The dust collection device, wherein the space portion includes at least a region where the communication path is disposed when the sliding portion is disposed at the closest position. It is a dust collector of Claim 2, Comprising:
The space portion has the work tool disposed in a state where at least the dust collector is mounted on the work tool in the second direction when the sliding portion is disposed at the most spaced position. The dust collector is configured such that a side end portion is disposed in the internal region. It is a dust collector as described in any one of Claims 1-4,
The main body is
In the second direction, an engagement portion that is provided on a side where the work tool is disposed in a state where the dust collecting device is mounted on the work tool, and is configured to be detachable from a tool body of the work tool. When,
The second direction is provided on the same side as the engagement portion, and can hold the engagement with the tool body by the engagement portion and can release the engagement in response to a manual operation from the outside. A dust collector comprising: an operation member configured to be switchable between states. It is a dust collector of Claim 4, Comprising:
The dust collector according to claim 1, wherein the operating member is configured to be manually operable in the second direction. It is a dust collector as described in any one of said 1-5,
The sliding portion is
A pair of guide rails spaced apart from each other and arranged substantially in parallel, extending in the first direction;
The pair of guide rails are held so as to be relatively movable in the first direction with respect to the sliding portion, and are configured to be engageable with the pair of guide rails, in the first direction of the sliding portion. A dust collecting apparatus comprising: a positioning member configured to adjust a protruding length from the opening or an entry length of the sliding part from the opening in the first direction. A working tool that drives a tip tool to perform a machining operation on a workpiece,
A fan configured to form an air flow for sucking up dust generated in the processing operation;
A tool body containing the fan and having a flow path for the air flow;
The work tool provided with the dust collector as described in any one of Claims 1-6 detachably mounted | worn with the said tool main body.

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