JP6175011B2 - Pneumatic ribbon gun - Google Patents

Description

  The present invention relates to a pneumatic continuous ribbon gun that jets ribbon or color paper in celebration or entertainment scenes.

In order to create a lively atmosphere during celebrations and entertainment, ribbons and color papers are sometimes sprayed using a ribbon gun equipped with a cylinder filled with ribbons and color papers.
Conventionally known ribbon guns include those described in Patent Document 1, Patent Document 2, and Patent Document 3. However, these conventional ribbon guns cannot be re-injected unless the cylinder is refilled after one injection. Some ribbon guns can perform the second injection by manually rotating the cylinder after one injection is completed, but the operation process is relatively troublesome and is not preferred by the user.

US Pat. No. 6,120,346 US Pat. No. 5,256,100 US Pat. No. 5,239,766

  The problem to be solved by the present invention is to provide an air-type continuous ribbon gun capable of continuous firing.

The air-type continuous ribbon gun of the present invention includes a main body, a front cover, a cylinder, a trigger, a firing unit, and a rotating unit, the main body is a hollow casing, and the front cover is installed at the front end of the main body so as to be opened and closed. A single injection port communicated with the inside of the main body passes through the front cover, the cylinder is rotatably installed inside the main body, and is adjacent to the rear of the front cover, and a plurality of The chambers are formed in an annular distribution, each of the chambers is filled with a ribbon or colored paper, the front end openings of the chambers are adjacent to the rear of the front cover, and the front end openings of any one of the chambers are The ribbon or collar is located behind the injection port and allows air to enter each chamber at the rear end of each chamber. An air inlet that pushes out the oper and injects outward from the outlet is opened, and the firing unit fires the cylinder by causing air to enter each chamber, and inside the main body, The rotation unit is installed next to the rear of the cylinder, and the rotation unit is configured to rotate the cylinder, and is installed inside the main body and connected to the cylinder so that the trigger can pivot. A column that is pivotally attached to the main body, the trigger extends to the outside of the bottom of the main body, a driving unit that drives the firing unit is formed at the rear end of the trigger, and a column that drives the rotating unit on the side of the trigger body protrudes, wherein the percussion unit, the tube, the piston, the compression spring, arm, link bar, a pawl member, before A tube body is adjacent to the rear end portion of the cylinder, an air outlet is formed at the front end portion of the tube body so as to face the cylinder, the piston is axially mounted in the tube body, and the compression spring is attached to the piston. Urging toward the direction of the cylinder, installed at the rear end of the piston, the front end of the arm being movably connected to the rear end of the piston, and the rear end of the arm Is pivotally attached to the front end portion of the link bar, the lower end portion of the link bar and the pawl member are pivotally attached, the pawl member is pivotally attached to the main body, and the apex portion of the pawl member is the end of the drive portion And the cusp is located in the upper space of the drive unit, and the drive unit pushes the pawl member to rotate the link bar in one direction toward the rear end of the main body. , The link bar and the A torsion spring installed between the pawl members provides the position recovery elasticity of the pawl member, and the rotating unit includes a reciprocating bar, a tension spring, a rotating member, and a rotating shaft. Two protruding columns are provided, a regulating groove is formed inside the main body, each protruding column extends into the regulating groove, one end of the reciprocating bar faces the upper end of the main body, and the other end is the lower end of the main body. A long and slender guide groove is formed, the column body is rotatably engaged with the guide groove, and the column body drives the reciprocating rod as the trigger rotates, so that the cylinder Moved toward the direction, provided in a state in which the push portion protrudes from the front end side surface of the reciprocating rod, and the reciprocating rod is rotated by moving the rotating member in the circumferential direction by the push portion along with the reciprocating motion, A first slope is formed at the front edge of the push part. A second slope is formed at the rear end of the push portion, the front end of the tension spring is connected to the rear end of the reciprocating rod, and the rear end is connected to the inner side of the main body. The rod is urged in the direction of the rear end of the main body, the rotating member is installed at the rear end of the cylinder, the front end of the rotating member is attached to the rotating shaft, and the rotating shaft is attached to the cylinder. A plurality of first guide portions and a plurality of second guide portions projecting on the outer periphery of the rotation member are provided, the rotation member rotating the cylinder in conjunction with each other, and each of the first guides is provided. Each of the second guide portions is adjacent to one end of the rotating member near the cylinder and adjacent to the outer periphery of the rotating member. First recesses are formed between the first guide parts, respectively, Second concave portions are formed between two adjacent second guide portions on the outer periphery of the member, each of the first guide portions is opposed to each of the second concave portions, and each of the second guide portions is A first arc surface is formed on one side of each of the first guide portions and is opposed to each of the first recess portions, and each of the second recess portions is opposed to each of the first guide portions. A second arc surface is formed on one side of each of the second guide portions, adjacent to the end, and the second arc surface is adjacent to the end of each first recessed portion facing each of the second guide portions, The push portion is guided by the first arc surface and the second arc surface and reciprocally slides between each of the first concave portions and each of the second concave portions, turns the rotating member, and rotates the trigger once. Each time it is operated, the trigger drives the firing unit and the rotation unit, and each cylinder of the cylinder is driven. The ribbon or color paper in the bar is sequentially ejected from the ejection port.

In this case, the pawl first plane upper edge member is formed, the link bar second plane is brought into contact with the first plane on the edge is formed on said pawl member is a first plane and the second The link bar may be moved in one direction via a plane and swiveled toward the rear end of the main body.

  According to the pneumatic continuous ribbon gun of the present invention, when the trigger is pulled and released again once, the trigger simultaneously moves the firing unit and the rotation unit to feed air into the cylinder and injects ribbon or colored paper. Since the cylinder rotates, the ribbon or color paper can be ejected from the cylinder continuously several times. Further, after the ribbon or color paper is continuously sprayed, the front cover can be opened and the cylinder can be replaced, which is convenient for use.

It is a perspective view of a pneumatic repetitive ribbon gun showing an example of the present invention. It is a partially broken perspective view of a pneumatic continuous ribbon gun showing an embodiment of the present invention. It is the perspective view seen from the front of the cylinder which concerns on the Example of this invention. It is the perspective view seen from the back of the cylinder which concerns on the Example of this invention. It is a right view of a trigger and a firing unit according to an embodiment of the present invention. It is a disassembled perspective view of the link bar and pawl member of the firing unit which concerns on the Example of this invention. It is a right view of the trigger and rotation unit which concern on the Example of this invention. It is a principal part enlarged view of FIG. It is a perspective view of the reciprocating rod which concerns on the Example of this invention. It is a perspective view of the right side frame concerning the example of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, the pneumatic continuous ribbon gun of this embodiment includes a main body 1, a front cover 2, a cylinder 3, a trigger 4, a firing unit 5, and a rotating unit 6.
The main body 1 is a hollow casing configured by closing the right casing 11 and the left casing 12, and the front cover 2 is installed at the front end of the main body 1 so as to be openable and closable. The injection port 21 communicated with is penetrated.
The cylinder 3 is rotatably installed inside the main body 1 and is adjacent to the rear of the front cover 2. The cylinder 3 passes through the front end of the main body 1 and is attached to and detached from the main body 1.

The trigger 4 is pivotally attached to the main body 1, and the trigger 4 is extended outside the bottom of the main body 1. A pivot 41 is installed on the side of the trigger 4, and the pivot 41 is pivotally attached to the right housing 11 and the left housing 12. Thereby, when the user pulls the trigger 4, the trigger 4 turns around the pivot 41.
The firing unit 5 is installed inside the main body 1 next to the rear of the cylinder 3 and is used to fire the cylinder 3.
The rotation unit 6 is installed inside the main body 1 so as to be connected to the cylinder 3 and is used for rotating the cylinder 3.

As shown in FIGS. 3 and 4, a non-circular insertion hole 31 is provided in the center of the rear end portion of the cylinder 3 along the axial direction. The insertion hole 31 may be changed to a recessed tank that is not circular, such as a triangle, a polygon, or an ellipse, and is not limited to that shown in FIG.
A plurality of chambers 32 are formed in the cylinder 3, and a ribbon or color paper (not shown) is filled in each chamber 32. Further, each chamber 32 is distributed in an annular shape around the central axis of the cylinder 3, the front end opening of each chamber 32 is adjacent to the rear of the front cover 2 (see FIG. 2), and the rear end of each chamber 32 is An intake port 33 for allowing air to enter the passage of the chamber 32 is opened. As a result, the ribbon or color paper inside each chamber 32 is pushed out from the front end opening of each chamber 32 by air and ejected outward from the ejection port 21 (see FIG. 1).

As shown in FIGS. 2 and 5, a drive part 42 is formed at the rear end of the trigger 4, and the trigger 4 drives the firing unit 5 by the drive part 42. The firing unit 5 includes a tubular body 51, a piston 52, a compression spring 53, an arm 54, a link bar 55, and a pawl member 56.
The tube body 51 is adjacent to the rear end portion of the cylinder 3, and an air outlet 512 is formed at the front end portion of the tube body 51 so as to face the rear end portion of the cylinder 3.
The piston 52 is pivotally mounted in the pipe body 51, and at least one sealing ring 522 is installed on the outer edge of the piston 52 to enhance the airtightness between the piston 52 and the inner wall of the pipe body 51.
The compression spring 53 is installed at the rear end portion of the piston 52, and the front end portion of the compression spring 53 is adjacent to the rear end portion of the piston 52. The rear end portion of the compression spring 53 is adjacent to the two stopper portions 13 of the main body 1, and the compression spring 53 is used to elastically urge the piston 52 to slide in the direction of the cylinder 3.

The front end portion of the arm 54 is movably connected to the rear end portion of the piston 52, and the rear end portion of the arm 54 is pivotally attached to the front end portion of the link bar 55. As shown in FIGS. 2, 5, and 6, the pawl member 56 is pivotally attached to the main body 1 by an intermediate shaft 57, and the lower end portion of the link bar 55 and the pawl member 56 are pivotally attached by the intermediate shaft 57.
The pawl member 56 has a first flat surface 562 formed on the upper surface, the apex 564 of the pawl member 56 extends to the swivel area at the end of the drive unit 42, and the apex 564 is located in the upper edge space of the drive unit 42. Accordingly, when the trigger 4 is turned, the driving unit 42 pushes and moves the pawl member 56 to turn around the center shaft 57. The link bar 55 is formed with a second flat surface 552 that is in contact with the upper edge of the first flat surface 562, and the pivoting pawl member 56 moves the link bar 55 so that the rear side of the main body 1 in one direction around the center shaft 57. It is configured to pivot in the end direction.
A torsion spring 58 is installed between the link bar 55 and the pawl member 56, and two spring legs 582 of the torsion spring 58 abut against the link bar 55 and the pawl member 56, respectively. Position recovery elasticity after turning.

As shown in FIGS. 2 and 7, a pillar body 43 protrudes from the side surface of the trigger 4. The column 43 is used to drive the rotary unit 6 and is located between the pivot 41 and the upper edge of the main body 1.
The rotating unit 6 includes a reciprocating rod 61, a tension spring 62, a rotating member 63, and a rotating shaft 64.
Two protruding columns 612 are provided on one side of the reciprocating bar 61, and each protruding column 612 extends into a regulation groove 112 (see FIG. 10) formed inside the right housing 11. The reciprocating bar 61 has a vertically elongated guide groove 614 with one end facing the upper end of the main body 1 and the other end facing the lower end of the main body 1, and the column 43 can be rotated into the guide groove 614. Is engaged. As a result, when the trigger 4 is pulled and turned rearward, the trigger 4 can drive the reciprocating bar 61 via the column body 43 and move it toward the cylinder 3. The reciprocating bar 61 is provided in a state in which the push portion 616 protrudes from the front end side surface (see FIG. 9), a first slope 6162 is formed at the front edge of the push portion 616, and a second slope 6164 at the rear end of the push portion 616. Is formed.

The tension spring 62 has a front end connected to the rear end of the reciprocating rod 61 and a rear end connected to the inside of the main body 1 near the rear end. Accordingly, a traction force is provided to the reciprocating rod 61, and the reciprocating rod 61 is urged toward the rear end portion of the main body 1.
The rotating member 63 is installed at the rear end portion of the cylinder 3, and the front end portion of the rotating member 63 is pivotally attached to the rotating shaft 64. The rotating shaft 64 is engaged with the insertion hole 31 at the rear end portion of the cylinder 3 (see FIG. 4), and the rotating member 63 is configured to rotate the cylinder 3 in conjunction with the rotating shaft 64.

As shown in FIG. 8, a plurality of first guide portions 632 and a plurality of second guide portions 634 that protrude are provided on the outer peripheral surface of the rotating member 63. The quantity of the first guide part 632 and the second guide part 634 is the same as the quantity of the chamber 32 used for filling the ribbon or color paper of the cylinder 3. The first guide portions 632 are adjacent to one end of the rotating member 63 far from the cylinder 3, and the second guide portions 634 are adjacent to one end of the rotating member 63 near the cylinder 3.
In addition, a first recessed portion 633 is formed between two adjacent first guide portions 632 on the outer periphery of the rotating member 63, and between the two second guide portions 634 adjacent on the outer periphery of the rotating member 63. Second recessed portions 635 are respectively formed. Each first guide portion 632 is opposed to each second recessed portion 635, and each second guide portion 634 is opposed to each first recessed portion 633.
A first arc surface 6322 is formed on one side of each first guide portion 632, and the first arc surface 6322 is adjacent to the end of each second recessed portion 635 facing each first guide portion 632. A second arc surface 6342 is formed on one side of each second guide portion 634, and the second arc surface 6342 is adjacent to the end of each first recessed portion 633 facing each second guide portion 634. As a result, the push portion 616 is guided and reciprocated between each first recessed portion 633 and each second recessed portion 635, and the reciprocating bar 61 is relatively pushed by the push portion 616 in the circumferential direction to rotate. The member 63 is configured to turn.

  When the user pulls the trigger 4 backward, the trigger 4 pivots about the pivot 41 in the counterclockwise direction of FIGS. 5 and 7, the drive unit 42 contacts the cusp 564, and the pawl member 56 moves to the center shaft. It turns in the clockwise direction around 57. Since the second flat surface 552 is in contact with the upper edge of the first flat surface 562, when the pawl member 56 is turned in the clockwise direction, the link bar 55 is interlocked and the rear end portion of the main body 1 is centered on the middle shaft 57. Simultaneously, the arm 54 pulls and moves the piston 52 backward, sucks air and enters the space between the piston 52 and the air outlet 512 inside the tube 51, At the same time, the piston 52 compresses the compression spring 53.

  As the pawl member 56 turns in the clockwise direction, when the cusp 564 leaves the turning section of the drive unit 42, the drive unit 42 and the cusp 564 are separated from each other. At this time, the pawl member 56 of the drive unit 42 is separated. Is released, the piston 52 moves forward due to the restoring force of the compression spring 53, the air in the tube 51 is pushed toward the air outlet 512, flows out of the tube 51, and the cylinder 3 The air enters the chamber 32 communicated with the air inlet 33 from the air inlet 33 facing the air outlet 512 at the end. As a result, the ribbon or color paper in the chamber 32 is pushed out of the chamber 32 and the injection port 21 and is ejected to the outside of the front end portion of the ribbon gun. Further, the forward movement of the piston 53 interlocks the arm 54, the link bar 55, and the pawl member 56 to restore the position.

  When the user pulls the trigger 4 rearward, the pawl member 56 is moved by the drive unit 42 as described above, the firing unit 5 is activated, the cylinder 3 is fired, and the trigger 4 is turned counterclockwise. At the same time, the column body 43 is moved to move the reciprocating rod 61 forward, and the tension spring 62 is pulled and deformed. After the user fires the cylinder 3 with the firing unit 5, when the traction force on the trigger 4 is released, the tension spring 62 provides elasticity to move the reciprocating bar 61 backward to the original position. When the reciprocating bar 61 moves rearward, the trigger 4 is pivoted clockwise around the pivot 41 to return to the initial position.

  When the trigger 4 turns in the clockwise direction, the drive unit 42 contacts the upper edge of the pointed portion 564 and the pawl member 56 is turned in the counterclockwise direction around the middle shaft 57. The pawl member 56 is pivotally attached to the link bar 55 by an intermediate shaft 57, and the pawl member 56 can only drive the link bar 55 in one direction and rotate it toward the rear end of the main body 1. Therefore, when the pawl member 56 is pivoted counterclockwise, the link bar 55, the arm 54, and the piston 52 cannot be moved, and the pawl member 56 is pivoted with respect to the link bar 55, and the pawl member 56 is twisted. Twist the spring 58. When the cusp 564 leaves the turning area of the drive unit 42 as the pawl member 56 turns counterclockwise, the drive unit 42 and the cusp 564 are separated from each other. At this time, the pawl member 56 of the drive unit 42 is separated. Is released, the trigger 4 recovers its original position, and the torsion spring 58 provides elasticity to pivot the pawl member 56 clockwise to the original position.

As described above, when the user pulls the trigger 4 backward and moves the reciprocating bar 61 forward, the push portion 616 is moved forward from the first recessed portion 633, and the first slope 6162 is the first slope 6162. When the second guide portion 634 facing the recessed portion 633 comes into contact, the push portion 616 has a second arc surface due to the opposed shape between the first slope 6162 and the second arc surface 6342 on the one side of the second guide portion 634. 6342 is guided by 6342 to enter the second recessed portion 635, and the push portion 616 pushes the second arc surface 6342 in the circumferential direction to turn the rotating member 63.
The rotating member 63 simultaneously rotates the cylinder 3 via the rotating shaft 64, the intake port 33 at the rear end of the cylinder 3 and the air outlet 512 of the tube body 51 face each other, and air enters the chamber 32 of the cylinder 3. The ribbon or color paper in the chamber 32 can be extruded from the injection port 21 to the outside.

  After the user has fired the cylinder 3 with the firing unit 5, the traction acting force on the trigger 4 is released, and when the reciprocating rod 61 is moved rearward, the push portion 616 is moved backward from the second recessed portion 635. When the second inclined surface 6164 comes into contact with another first guide portion 632 opposite to the second recessed portion 635, the second inclined surface 6164 and the first arc surface 6322 on one side of the first guide portion 632 are located between each other. Due to the shape, the push portion 616 is guided by the first arc surface 6322 and enters the other first recessed portion 633, the push portion 616 pushes the first arc surface 6322 in the circumferential direction, and turns the rotating member 63 again. Let The rotating member 63 simultaneously rotates the cylinder 3 via the rotating shaft 64 and causes the air outlet 512 to be opposed to a location between the two adjacent intake ports 33 at the rear end of the cylinder 3.

  When the user pulls the trigger 4 and releases the trigger 4 once, the trigger 4 moves the firing unit 5 and the rotation unit 6 at the same time. The operation of rotating the cylinder 3 is completed while the air is fed into the cylinder 3 and the ribbon or color paper is sprayed, and the user repeats the operation of pulling and releasing the trigger 4 a plurality of times. The ribbon or color paper in each chamber 32 of the cylinder 3 can be ejected in order toward the outside. After all the ribbons or color papers in each chamber 32 are jetted outward, the front cover 2 is opened and the cylinder 3 may be replaced. Since the user can change the cylinder 3 after ejecting the ribbon or color paper from the cylinder 3 a plurality of times, it is convenient for use.

DESCRIPTION OF SYMBOLS 1 Main body 11 Right side housing | casing 112 Restriction groove | channel 12 Left side housing | casing 13 Stopper part 2 Front cover 21 Injection port 3 Cylinder 31 Fit-in hole 32 Chamber 33 Inlet port 4 Trigger 41 Axis 42 Driving part 43 Column body 5 Fire unit 51 Tube body 512 Air Exit 52 Piston 522 Seal ring 53 Compression spring 54 Arm 55 Link bar 552 Second plane 56 Pawl member 562 First plane 564 Point 57 Central shaft 58 Torsion spring 582 Spring leg 6 Rotating unit 61 Reciprocating rod 612 Projection column 614 Guide groove 616 Push part 6162 1st slope 6164 2nd slope 62 Tension spring 63 Rotating member 632 1st guide part 6322 1st arc surface 633 1st recessed part 634 2nd guide part 6342 2nd arc surface 635 2nd recessed part 64 Rotating shaft

Claims (2)

Air type continuous ribbon gun, including main body, front cover, cylinder, trigger, firing unit, rotating unit,
The body is a hollow housing;
The front cover is installed to be openable and closable at the front end of the main body, and a single injection port communicating with the inside of the main body is passed through the front cover,
The cylinder is rotatably installed inside the main body, and is adjacent to the rear of the front cover, and a plurality of chambers are annularly distributed in the cylinder, and a ribbon or color paper is formed inside each chamber. The front end opening of each chamber is adjacent to the rear of the front cover, the front end opening of any one of the chambers is located behind the outlet, and air is supplied to the rear end of each chamber. Air inlets that are made to enter each of the chambers and extrude a ribbon or color paper and inject outward from the outlets are respectively opened,
The firing unit is for firing the cylinder by causing air to enter each chamber, and is installed next to the rear of the cylinder inside the main body,
The rotating unit rotates the cylinder, is installed inside the main body, and is connected to the cylinder.
The trigger is pivotally attached to the main body, the trigger is extended to the outside of the bottom of the main body, and a drive unit for driving the firing unit is formed at the rear end of the trigger, and the side surface of the trigger A column for driving the rotating unit is provided to protrude,
The firing unit includes a tube body, a piston, a compression spring, an arm, a link bar, and a pawl member, and the tube body is adjacent to a rear end portion of the cylinder and is opposed to the cylinder at a front end portion of the tube body. An air outlet is formed, the piston is pivotally mounted in the tube, and the compression spring biases the piston toward the cylinder, and is installed at a rear end of the piston. A front end portion of the arm is movably connected to a rear end portion of the piston, a rear end portion of the arm is pivotally attached to a front end portion of the link bar, and a lower end portion of the link bar and the pawl member are pivotally attached. The pawl member is pivotally attached to the main body, the apex of the pawl is extended to the swivel zone at the end of the drive unit, and the apex is located in the upper space of the drive unit, and the drive unit is The pawl member The link bar is pivoted in one direction toward the rear end of the main body, and a torsion spring installed between the link bar and the pawl member provides position recovery elasticity of the pawl member, and the rotation The unit includes a reciprocating rod, a tension spring, a rotating member, and a rotating shaft, two protruding columns are provided on one side of the reciprocating rod, a restriction groove is formed inside the main body, and each protruding column is An elongated guide groove is formed in the reciprocating rod so that one end faces the upper end of the main body and the other end faces the lower end of the main body, and the column body is rotatable in the guide groove. The column body is driven in the direction of the cylinder by driving the reciprocating bar as the trigger rotates, and is provided in a state in which a push portion protrudes from the front end side surface of the reciprocating bar. The reciprocating rod moves along with the reciprocating motion. The rotating member is moved in the circumferential direction by the shoe portion to be turned, a first inclined surface is formed at the front edge of the push portion, a second inclined surface is formed at the rear end portion of the push portion, and the front end of the tension spring A reciprocating rod is coupled to the rear end of the reciprocating rod, and a rear end is coupled to the inside of the main body to urge the reciprocating rod toward the rear end of the main body. It is installed at the end, the front end of the rotating member is pivotally attached to the rotating shaft, the rotating shaft is pivotally supported by the cylinder, the rotating member rotates the cylinder in conjunction with the rotating shaft, and the rotating A plurality of first guide portions and a plurality of second guide portions projecting from the outer periphery of the member are provided, and each of the first guide portions is adjacent to one end of the rotating member far from the cylinder, and each of the second guide portions. The part is adjacent to one end of the rotating member near the cylinder, A first recessed portion is formed between two adjacent first guide portions on the outer periphery of the rotating member, and a second recessed portion is formed between two adjacent second guide portions on the outer periphery of the rotating member. Each of the first guide portions is opposed to each of the second recessed portions, and each of the second guide portions is opposed to each of the first recessed portions, and one side of each of the first guide portions. A first arc surface is formed, the first arc surface is adjacent to the end of each of the second recessed portions facing each of the first guide portions, and a second arc surface is formed on one side of each of the second guide portions. The second arc surface is formed adjacent to the end of each first recessed portion facing each of the second guide portions, and the push portion is guided by the first arc surface and the second arc surface to each of the first arc surfaces. Reciprocatingly slide between the recessed portion and each of the second recessed portions, and swivel the rotating member,
Each time the trigger is operated once, the trigger drives the firing unit and the rotation unit, and the ribbon or color paper in each chamber of the cylinder is sequentially ejected from the ejection port.
This is an air-type continuous ribbon gun. A first plane is formed on the upper edge of the pawl member, a second plane is formed on the link bar to contact the upper edge of the first plane, and the pawl member is interposed via the first plane and the second plane. 2. The pneumatic continuous ribbon gun according to claim 1 , wherein the link bar is moved in one direction and swung in a direction toward a rear end portion of the main body .

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