JP2006169822A - Automatic opening/closing device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a cover from coming off from a pulley case, and to enhance the workability of mounting of the cover on the pulley case. <P>SOLUTION: In this automatic opening/closing device for a vehicle, a pulley assembly 24 for guiding a cable 22a, connected to a sliding door, to a driving unit comprises a pulley 35, and the pulley case 36 for turnably housing the pulley 35. The cover 51, wherein a cover part 52 for covering a cable entrance/exit hole 42 of the pulley case 36 and a seal part 53 sandwiched between the pulley case 36 and an outer panel are integrally formed, is mounted on the pulley case 36. One end of the cover 51 is provided with a tongue piece-shaped temporary fixing part 61 which is equipped with an engaging hole 61a; the pulley case 36 is provided with an engaging shaft 62; and the temporary fixing part 61 is engaged with the engaging shaft 62, so that the cover 51 can be temporarily fixed to the pulley case 36. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automatic opening / closing device for a vehicle that automatically opens and closes an opening / closing body that is mounted on a vehicle body so as to be freely opened / closed. Related to things.

  Vehicles such as automobiles are provided with opening / closing bodies such as doors, sunroofs, and window glass. For example, the side of the vehicle body of a wagon car, one-box car, etc. is provided with a sliding door that opens and closes along the guide rail, so that it is possible to easily get on and off from the side of the vehicle or load and unload luggage. Has been.

  Normally, these opening / closing bodies are manually opened / closed. However, in recent years, there are many cases in which an automatic opening / closing device is mounted on a vehicle to automatically open / close the opening / closing body. For example, when automatically opening and closing a sliding door, two cables are connected to the sliding door, and each cable is operated by a drive unit using an electric motor as a driving source to automatically open and close the sliding door. Automatic switchgear is often used. In this case, in order to route the cable between the sliding door that opens and closes outside the outer panel of the vehicle body and the drive unit arranged inside the outer panel, the outer panel of the vehicle body is positioned at both ends of the guide rail. Thus, openings are formed, and the cable is routed with the direction of movement changed by pulley assemblies attached to these openings. The pulley assembly has a structure in which the pulley is rotatably accommodated in a resin-made pulley case. It is burned.

In such an automatic opening / closing device, since one cable entry / exit hole of the pulley case opens to the outside of the vehicle body, there is a possibility that water, foreign matter, etc. may enter the pulley case from the cable entry / exit hole. Therefore, for example, in the automatic opening / closing device disclosed in Patent Document 1, a rubber cover having a through hole through which a cable passes is attached to a pulley case, and the cable entrance / exit hole is covered by this cover so that water and foreign matter from the cable entrance / exit hole are covered. Etc. to prevent intrusion.
JP 2003-328639 A

  However, since such a cover is fitted and fixed in a groove formed in the pulley case using its elastic force, there is a problem that it is easily detached from the pulley case when an external force is applied. In particular, during transportation before the automatic opening / closing device is assembled to the vehicle or when the pulley assembly is assembled to the vehicle body, a large external force may be applied to the cover due to the cable tension, and the cover may be removed. Further, since the flexible cable generates an elastic force in a direction in which it is unwound from the pulley, there is a problem that the cover is pulled by the cable on the side where the through hole is opened, and that the portion is particularly easily detached.

  On the other hand, a cover is known that is fixed to the pulley case by bonding, but in this case, a separate bonding process is required, so the workability of mounting the cover to the pulley assembly is reduced. Will do.

  An object of the present invention is to prevent the cover from being detached from the pulley case and to enhance the workability of attaching the cover to the pulley case.

  An automatic opening and closing device for a vehicle according to the present invention is an automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body that is mounted on a vehicle body in a freely openable and closable manner, and drives a cable connected to the opening and closing body. A drive source that opens and closes the opening and closing body, and a pulley that is rotatably accommodated in a pulley case that is fixed to the opening of the vehicle body, and that changes a moving direction of the cable between the opening and closing body and the drive source; A cover provided with a through hole through which the cable passes and covering the cable entry / exit hole of the pulley case; and a cover formed integrally with the cover and sandwiched between the vehicle body and the pulley case. The cover is provided with a temporary fixing portion for temporarily fixing the cover to the pulley case.

  The automatic opening / closing device for a vehicle according to the present invention forms a pulley case by combining a pair of case halves in the axial direction of the pulley, and a combination surface of the other case halves on a combination surface of one of the case halves. An engagement shaft that protrudes toward the engagement shaft is provided, and the temporary fixing portion is formed in a tongue-like shape having an engagement hole that engages with the engagement shaft.

  In the vehicle automatic opening and closing device of the present invention, the seal portion is formed in an outer rectangular shape in which a length dimension in a direction perpendicular to the axial direction of the pulley is longer than a length dimension parallel to the axial direction of the pulley, The cover is temporarily fixed to be rotatable about the engagement shaft by providing the temporary fixing portion at one end in the longitudinal direction of the seal portion.

  The automatic opening / closing device for a vehicle according to the present invention is configured such that the through hole is biased to the opening / closing body side with respect to the pulley and the temporary fixing portion is provided at an end of the seal portion on the same side as the side where the through hole is biased. It is characterized by providing.

  The automatic opening / closing device for a vehicle according to the present invention includes a locking hole having a locking surface perpendicular to a direction in which the cover portion is attached to the pulley case, and the engagement with the locking hole. A mating protrusion is formed on the cover portion.

  According to the present invention, before the pulley case is fixed to the vehicle body, the cover is temporarily fixed to the pulley case by the temporary fixing portion, and when the pulley case is fixed to the vehicle body, the seal portion is interposed between the pulley case and the vehicle body. By being sandwiched, the cover is securely fixed to the pulley case. Therefore, the cover is securely held by the pulley case before and after assembly, and the cover can be prevented from being detached from the pulley case. In addition, since the cover can be prevented from being detached from the pulley case without adhering the cover to the pulley case, workability of attaching the cover to the pulley case can be improved.

  In addition, according to the present invention, a pair of case halves are combined to form a pulley case, an engagement shaft is formed on the combination surface of each case half, and an engagement hole through which the engagement shaft is inserted is provided. Since the temporary fastening portion is formed in a tongue-like shape, the mounting property of the cover to the pulley case can be improved.

  Furthermore, according to the present invention, since the temporary fixing portion is provided at the end portion in the longitudinal direction perpendicular to the axial direction of the pulley of the cover, the pulley is engaged with the temporary fixing portion engaged with the engagement shaft. After assembling the case, the cover can be put on the pulley case by turning it around the engaging shaft, thereby further improving the attachment of the cover to the pulley case.

  Furthermore, according to the present invention, since the temporary fixing portion is provided at the end of the cover on the same side as the direction in which the through hole is biased with respect to the pulley, the cable is elastically deformed in the direction of rewinding with respect to the pulley. Even when the through-hole portion of the cover is pulled by cable tension, the cover can be securely fixed to the pulley case reliably.

  Furthermore, according to the present invention, since the engagement protrusion that engages with the locking hole formed in the pulley case is provided on the cover, the cover can be securely temporarily fixed to the pulley case. In particular, when a temporary fixing portion is provided at an end portion in the longitudinal direction of the cover, the cover is easily temporarily fixed to the pulley case by engaging the engaging protrusion with the locking hole while rotating the cover. be able to.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory view showing a part of a vehicle equipped with an automatic opening / closing device for a vehicle according to an embodiment of the present invention. A slide door 13 as an opening / closing body is mounted so as to be openable and closable for loading and unloading.

  A concave groove 15a extending in the vehicle front-rear direction is formed in the outer panel (outer plate) 15 of the vehicle body 12, and a guide rail 16 positioned outside the outer panel 15 and extending in the vehicle front-rear direction is formed in the concave groove 15a. It is fixed. On the other hand, the slide door 13 is provided with a roller assembly 17. When the roller assembly 17 is guided by the guide rail 16, the slide door 13 is indicated by a fully closed position indicated by a one-dot chain line in the drawing and a solid line in the drawing. It can be opened and closed in the vehicle longitudinal direction between the fully open position. In addition, a curved portion 16 a that bends toward the vehicle interior side is provided on the vehicle front side of the guide rail 16, so that the slide door 13 is located on the inner side of the vehicle body 12 so as to be flush with the side surface of the vehicle body 12. It is pulled in and closed.

  Although not shown in the drawings, the roller assembly 17 is provided at the upper and lower parts (upper part and lower part) at the front end of the slide door 13 in addition to the part shown (the center part in the vehicle vertical direction at the rear end of the slide door 13). Corresponding to these, guide rails (not shown) are provided on the upper and lower parts of the vehicle body 12, respectively, so that the slide doors 13 are supported by the vehicle body 12 at a total of three locations.

  FIG. 2 is a perspective view showing the details of the automatic opening / closing device for a vehicle shown in FIG. 1, and an automatic opening / closing device 21 for vehicles (hereinafter referred to as an opening / closing device 21) is mounted on the vehicle 11. The slide door 13 can be automatically opened and closed. The opening / closing device 21 includes a pair of cables 22a and 22b connected to the roller assembly 17 (that is, the slide door 13) and a drive unit 23 as a drive source for driving the cables 22a and 22b to open and close the slide door 13. ing.

  As the cables 22a and 22b, cables whose outer surfaces are coated with a resin to prevent rust and the like are used. The cable 22a is connected to the roller assembly 17 from the vehicle rear side, the cable 22b is connected to the roller assembly 17 from the vehicle front side, and the cable 22a is guided from the roller assembly 17 along the guide rail 16 to the vehicle rear side. The cable 22b is led from the roller assembly 17 along the guide rail 16 to the front side of the vehicle.

  On the other hand, the drive unit 23 is disposed inside the outer panel 15 of the vehicle body 12 and substantially in the middle of the guide rail 16 in the longitudinal direction, and the cables 22a and 22b are pulley assemblies 24 provided at both ends of the guide rail 16. , 25, the moving direction is changed and guided to the drive unit 23.

  FIG. 3 is a partially cutaway cross-sectional view showing details of the drive unit shown in FIG. 2, and a cylindrical drum 27 fixed to an output shaft 26 is rotatable inside a unit case 23a of the drive unit 23. The cables 22a and 22b led to the drive unit 23 are inserted into the unit case 23a and wound around the outer peripheral surface of the drum 27 a plurality of times in opposite directions. Further, the drive unit 23 is provided with an electric motor 28, and a rotating shaft (not shown) of the electric motor 28 is connected to the output shaft 26 via a reduction mechanism (not shown). Thus, when the electric motor 28 is operated, the power is transmitted to the output shaft 26 via the speed reduction mechanism, and the drum 27 is rotationally driven.

  When the drum 27 rotates, one cable 22a is wound around the drum 27 and the other cable 22b is unwound from the drum 27, and the slide door 13 is automatically opened while being pulled by the cable 22a. On the contrary, when the electric motor 28 is reversed, the cable 22b is wound around the drum 27 and the cable 22a is unwound from the drum 27, and the slide door 13 is automatically closed while being pulled by the cable 22b. Thus, the slide door 13 is configured to automatically open and close the slide door 13 by driving the cables 22a and 22b by the drive unit 23.

  As the electric motor 28, for example, a DC motor with a brush, a brushless motor, or the like that can rotate forward and backward when supplied with current from a power source such as a battery (not shown) is used. The operation control of the electric motor 28 is performed by a control unit 29 including a CPU, a memory, and the like (not shown).

  As shown in FIG. 2, outer tubes 31a and 31b are provided between the drive unit 23 and the pulley assemblies 24 and 25, and the cables 22a and 22b between the drive unit 23 and the pulley assemblies 24 and 25 are The outer tubes 31a and 31b are accommodated so as to be movable in the axial direction. These outer tubes 31a and 31b are formed in a flexible tube shape by a flexible resin material or the like, and one end of each outer tube 31a and 31b is fixed to a corresponding pulley assembly 24 and 25. On the other hand, metal slide caps 32a and 32b are fixed to the other ends of the outer tubes 31a and 31b. These slide caps 32a and 32b are axially movable with respect to the unit case 23a, that is, the unit case 23a. It is supported to move forward and backward. A spring 33 which is a compression coil spring is provided inside the unit case 23a, and the slide caps 32a and 32b are urged in a direction to be pushed out from the unit case 23a by the spring force of the spring 33. Therefore, the outer tubes 31a and 31b are curved between the drive unit 23 and the pulley assemblies 24 and 25 by being pushed out of the unit case 23a by the spring force of the spring 33 with one end supported by the pulley assemblies 24 and 25. As a result, the movement paths of the cables 22a and 22b between the drive unit 23 and the pulley assemblies 24 and 25 are extended, and a predetermined tension is applied to the cables 22a and 22b. That is, when the tension of the cables 22a and 22b is reduced, the degree of bending of the outer tubes 31a and 31b is increased, and the looseness of the cables 22a and 22b is eliminated. And the tension of the cables 22a and 22b is reduced.

  The outer tubes 31a and 31b are filled with grease so that the cables 22a and 22b can be moved smoothly.

  4 is a cross-sectional view showing details of the pulley assembly shown in FIG. 2, and FIG. 5 is an exploded perspective view showing a method of attaching the pulley assembly shown in FIG. 4 to the outer panel. 6 is an exploded perspective view of the pulley assembly shown in FIG. Although the opening / closing device 21 shown in the present embodiment is provided with a pair of pulley assemblies, the structures of the pulley assemblies 24 and 25 are basically the same, and the outer panels of these pulley assemblies are the same. Since the attachment method to 15 is the same, only the pulley assembly 24 will be described in detail below.

  As shown in FIGS. 4 and 5, the outer panel 15 has an opening 15b for routing the cable 22a between the slide door 13 and the drive unit 23, and the pulley assembly 24 is formed in the opening 15b. The outer panel 15 is mounted from the inside. Four mounting holes 15b1 to 15b4 are provided around the opening 15b.

  The pulley assembly 24 has a pulley 35 over which the cable 22a is stretched and a pulley case 36 for housing the pulley 35. As shown in FIG. 5, bolts are inserted through insertion holes 36c1 to 36c4 described later of the pulley case 36. 37 and nuts 38 are fixed to the mounting holes 15b1 to 15b4 of the outer panel 15 by fastening means. At this time, the pulley case 36 is attached to the opening 15b so as to straddle the outer panel 15 inward and outward, whereby the pulley case 36 is partially exposed to the outside of the outer panel 15 from the opening 15b. Is fixed to the opening 15b. As a fastening means, bolts may be welded to the outer panel 15 in advance, and the nuts may be fastened by inserting the insertion holes 36c1 to 36c4 of the pulley case 36 through the threaded portions.

  As shown in FIG. 6, the pulley case 36 has a pair of case halves 36 a and 36 b each formed of a resin material, and by combining these case halves 36 a and 36 b in the axial direction of the pulley 35. It is formed in a case shape. A pulley shaft 41 is attached to one case half 36 a, and a pulley 35 accommodated in the pulley case 36 is supported by the pulley shaft 41 and is rotatable inside the pulley case 36.

  A cable entry / exit hole 42 is formed in a portion exposed to the outside from the opening 15b of the pulley case 36, and the cable 22a laid over the pulley 35 enters / exits the pulley case 36 through the cable entry / exit hole 42. The cable entry / exit hole 42 is formed in a long rectangular shape along the groove direction of the pulley 35, and even if the angle of the cable 22 a drawn from the pulley 35 changes according to the position of the slide door 13, the cable 22 a Is prevented from contacting the pulley case 36. Further, a connection hole 43 to which the outer tube 31 a is connected is formed in a portion exposed to the inside of the outer panel 15 of the pulley case 36, and the cable 22 a is connected to the outer tube 31 a and the pulley case 36 through the connection hole 43. Go in and out.

  As a result, the movement direction of the cable 22 a is changed between the slide door 13 and the drive unit 23 by the pulley 35 so that the cable 22 a can be moved in the direction along the opening and closing direction of the slide door 13. Guided into and out of the panel 15.

  As shown in FIGS. 4 and 5, in order to prevent water and foreign matter from entering the pulley case 36 from the cable entry / exit hole 42 or between the pulley case 36 and the opening 15 b to the inside of the outer panel 15. A cover 51 is attached. The cover 51 is formed of a rubber material, and includes a cover portion 52 that covers the cable entry / exit hole 42 of the pulley case 36 and a seal portion 53 that closes the opening 15b.

  The cover 52 is formed in a cover shape corresponding to the outer shape of the portion exposed to the outside from the opening 15b of the pulley case 36, and is attached to the pulley case 36 from a direction orthogonal to the axial direction of the pulley 35 (pulley shaft 41). Thus, the entire portion exposed to the outside from the opening 15b of the pulley case 36 is covered. That is, the cover 52 covers the cable entry / exit hole 42 of the pulley case 36, thereby preventing water, foreign matter, etc. from entering the pulley case 36 from the cable entry / exit hole 42. Further, the cover portion 52 is provided with a through hole 52a that opens toward the front side of the vehicle, and the cable 22a that enters and exits from the cable entry / exit hole 42 moves in and out of the cover portion 52 through the through hole 52a. It has become. In this case, the through-hole 52 a is arranged to be deviated toward the vehicle front side, that is, the slide door 13 side with respect to the pulley 35, whereby the tension of the cable 22 a spanned over the pulley 35 is reduced. It is supposed not to join the part.

  On the other hand, the seal portion 53 is formed in an annular shape surrounding the opening portion 15 b and is formed integrally with the cover portion 52 while being in a plate shape disposed on the attachment surface 36 c that contacts the outer panel 15 of the pulley case 36. The mounting surface 36c is provided with four insertion holes 36c1 to 36c4 through which the bolts 37 are inserted so as to coincide with the positions of the four mounting holes 15b1 to 15b4 provided around the opening 15b. It has been. In this case, according to the shape of the pulley 35 and the opening 15b, the seal portion 53 has a direction perpendicular to the axial direction of the pulley 35 rather than a length dimension in a direction parallel to the axial direction of the pulley 35 (the vehicle vertical direction) ( The length dimension in the vehicle front-rear direction) is formed long, and the outer shape is rectangular as a whole. As shown in FIG. 4, when the pulley case 36 is fixed to the mounting holes 15b1 to 15b4 of the outer panel 15 through the insertion holes 36c1 to 36c4 by the bolts 37 and the nuts 38, the seal portion 53 is attached to the mounting surface 36c of the pulley case 36. And the outer panel 15. Therefore, when the pulley case 36 is fixed to the outer panel 15, the cover 51 is securely fixed to the pulley case 36. Further, since the seal portion 53 is sandwiched between the opening portion 15b and the pulley case 36, the opening portion 15b and the pulley case 36 are sealed by the seal portion 53, whereby the opening portion 15b and the pulley case 36 are sealed. It is possible to prevent rainwater or foreign matter from entering the outer panel 15 from the inside.

  As shown in FIG. 5, a projecting portion 53a having a triangular cross section projecting toward the outer panel 15 is formed in an annular shape so as to surround the opening portion 15b on the surface of the seal portion 53 on the side in contact with the outer panel 15. The projecting portion 53a is pressed against the outer panel 15 so that the sealing performance of the sealing portion 53 is enhanced.

  Further, on the vehicle upper side and the lower side of the cover portion 52, three temporary fixing claw portions 54 are provided side by side with a predetermined interval in the vehicle front-rear direction. These temporarily fixing claw portions 54 are for temporarily fixing the cover 51 temporarily fixed to the pulley case 36 to the opening portion 15b, and engage with the outer edge of the opening portion 15b so that the pulley assembly 24 is opened. Temporarily fix to 15b. Thus, when the pulley assembly 24 is fixed to the opening 15b with the bolt 37 and the nut 38, the pulley assembly 24 can be temporarily fixed to the opening 15b in advance, whereby the pulley assembly 24 is attached to the outer panel 15. Assembly workability can be improved.

  Further, the cover 51 is provided with an abutting portion 55 located at an end of the cover portion 52 on the vehicle rear side, and the abutting portion 55 abuts on an edge portion of the opening 15b on the vehicle rear side. By doing so, the pulley assembly 24 can be positioned at a predetermined position. Therefore, the workability of assembling the pulley assembly 24 to the outer panel 15 can be further enhanced by temporarily fixing the pulley assembly 24 to the outer panel 15 so as to press the contact portion 55 against the edge of the opening 15b. .

  7 is a cross-sectional view taken along line AA shown in FIG. 4, and FIG. 8 is a perspective view showing a state of the cover temporarily fixed by the temporary fixing portion shown in FIG.

  In the opening / closing device 21, a temporary fixing portion 61 is provided in the cover 51 attached to the pulley case 36, and the cover 51 is temporarily fixed to the pulley case 36 before being fixed to the outer panel 15.

  As shown in FIG. 6, the temporary fixing portion 61 is formed in a tongue-like shape having an engagement hole 61 a that opens in a direction parallel to the axial direction of the pulley 35 at the axial center thereof. This is an end portion on the same side as the direction in which the through hole 52a of the cover portion 52 is biased, and is provided at substantially the middle portion in the vehicle vertical direction.

  On the other hand, on the combination surface 36d of one case half 36a of the pulley case 36, there is an engagement shaft 62 protruding toward the combination surface 36e of the other case half 36b, that is, in a direction parallel to the axial direction of the pulley 35. Is provided. The temporary fixing portion 61 of the cover 51 is engaged with the engagement shaft 62 in the engagement hole 61a, whereby the cover 51 is temporarily fixed to the pulley case 36. Further, when the case halves 36a and 36b are combined with each other in a state where the temporary fixing portion 61 is engaged with the engagement shaft 62, as shown in FIG. 7, the tip of the engagement shaft 62 is the other case half 36b. Thus, the temporary fixing portion 61 is prevented from being detached from the engagement shaft 62. Further, by engaging the temporarily fixing portion 61 of the cover 51 with the engagement shaft 62, the cover 51 can be temporarily fixed to the pulley case 36 so as to be rotatable about the engagement shaft 62.

  With this structure, in this opening / closing device 21, the cover 51 is temporarily fixed to the pulley case 36 by the temporary fixing portion 61 before the pulley case 36 is fixed to the outer panel 15. On the other hand, when the pulley case 36 is fixed to the outer panel 15, the cover 51 is securely fixed to the pulley case 36 by the seal portion 53 being sandwiched between the pulley case 36 and the outer panel 15. Accordingly, the cover 51 is securely held by the pulley case 36 before and after the pulley assembly 24 is assembled to the outer panel 15, and the cover 51 is prevented from being detached from the pulley case 36. Can increase the sex. Moreover, according to this structure, since it is not necessary to adhere | attach the cover 51 to the pulley case 36, the mounting | wearing workability | operativity to the pulley case 36 of the cover 51 can be improved.

  Further, in the opening / closing device 21, the tongue 51-like temporary fixing portion 61 having the engagement hole 61a engaged with the engagement shaft 62 provided in the pulley case 36 is provided in the cover 51. The mounting property to the pulley case 36 can be improved. Further, by providing the temporary fixing portion 61 at the longitudinal end of the seal portion 53 in the direction orthogonal to the axial direction of the pulley 35, as shown in FIG. The cover 51 can be attached to the pulley case 36 while being rotated. As a result, if the temporary fixing portion 61 is engaged with the engagement shaft 62, the cover 51 can be covered on the pulley case 36 after the pulley case 36 is assembled by combining the case halves 36a and 36b. The mountability of the cover 51 to the pulley case 36 can be improved. Further, by providing the temporary fixing portion 61 at the end portion on the slide door 13 side of the seal portion 53, even if an elastic force is generated in the direction in which the cable 22a is wound around the pulley 35, a cover is provided against this elastic force. 51 can be temporarily fixed to the pulley case 36 reliably.

  9 is a cross-sectional view taken along line BB shown in FIG. 4, and FIG. 10 is a cross-sectional view showing details of the temporary fixing portion shown in FIG.

  As shown in FIG. 9, in this opening / closing device 21, in order to hold the cover 51, which can be rotated only by the temporary fixing portion 61, in the pulley case 36, four engagement protrusions 71 are provided on the cover portion, These engagement protrusions 71 are engaged with locking holes 72 formed in the pulley case 36 so that the cover 51 is securely held by the pulley case 36.

  Two of these engaging projections 71 are formed on the inner surfaces of the pair of wall portions perpendicular to the axial direction of the pulley 35 of the cover portion 52, respectively, and projecting in a direction parallel to the axial direction of the pulley 35. Is formed. Each engaging protrusion 71 is formed in a semi-cylindrical shape, and as shown in FIG. 10, the flat surface 71 a is perpendicular to the mounting direction of the cover portion 52 to the pulley case 36.

  On the other hand, two locking holes 72 are provided in portions exposed to the outside from the opening 15b of the pulley case 36, respectively. These locking holes 72 are formed in a semicircular cross section having a locking surface 72a perpendicular to the direction in which the cover portion 52 is attached to the pulley case 36. When the 71 is engaged, as shown in FIG. 10, the flat surface 71a of the engaging protrusion 71 is engaged with each locking surface 72a. Therefore, when a load in a direction away from the pulley case 36 is applied to the cover 52 (a load facing the direction opposite to the direction in which the cover 52 is attached to the pulley case 36), the load is received by the locking surface 72a. Thus, the holding strength of the cover 52 on the pulley case 36 by the engaging protrusion 71 can be increased. Further, by forming the cross section of the engaging protrusion 71 and the locking hole 72 in a semicircular shape, when the engaging protrusion 71 is engaged with the engaging hole 72, the corner portion is caught by the edge portion of the locking hole 72. This can be prevented and the workability can be improved.

  As described above, in the opening / closing device 21, since the cover 51 is provided with the engagement protrusion 71 that engages with the locking hole 72 formed in the pulley case 36, the cover 51 is securely held by the pulley case 36. The detachment of the cover 51 from the pulley case 36 can be prevented. Even when the cover 51 is temporarily fixed to the pulley case 36 by the temporary fixing portion 61 and the cover 51 is rotated around the engagement shaft 62 from the state to cover the pulley case 36, the engagement protrusion 71. By engaging the engaging hole 72 with the engaging hole 72, the cover 51 can be easily attached to the pulley case 36.

  In the case shown in the drawing, the cross sections of the engagement protrusions 71 and the engagement holes 72 are semicircular. However, the present invention is not limited to this, and the flat surface 71a perpendicular to the mounting direction of the cover portion 52 or As long as the locking surface 72a is provided, another shape such as a rectangular cross section or a triangular shape may be used.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the present embodiment, the cover 51 is made of rubber. However, the present invention is not limited to this, and the cover 51 may be formed of another elastic material such as a flexible resin material.

  Further, in the present embodiment, only the pulley assembly 24 arranged on the rear side of the vehicle 11 has been described, but a similar cover 51 is also attached to the pulley assembly 25 arranged on the front side of the vehicle 11. ing.

  Furthermore, in the present embodiment, the temporary fixing portion 61 is formed in a tongue shape having the engagement hole 61a, but is not limited thereto, and may be formed in a block shape or the like.

  Furthermore, in the present embodiment, the opening / closing device 21 opens and closes the slide door 13 provided on the passenger seat side, but may also be configured to open and close the slide door 13 provided on the driver seat side. Good.

It is explanatory drawing which shows a part of vehicle with which the vehicle automatic opening / closing apparatus which is one embodiment of this invention was mounted | worn. It is a perspective view which shows the detail of the automatic opening / closing apparatus for vehicles shown in FIG. FIG. 3 is a partially cutaway cross-sectional view showing details of the drive unit shown in FIG. 2. It is sectional drawing which shows the detail of the pulley assembly shown in FIG. It is a disassembled perspective view which shows the attachment method to the outer panel of the pulley assembly shown in FIG. It is a disassembled perspective view of the pulley assembly shown in FIG. It is sectional drawing which follows the AA line shown in FIG. It is a perspective view which shows the state of the cover temporarily fixed by the temporary fixing part shown in FIG. It is sectional drawing which follows the BB line shown in FIG. It is sectional drawing which shows the detail of the temporary fix | stop part shown in FIG.

Explanation of symbols

11 Vehicle 12 Car body 13 Sliding door 15 Outer panel (outer plate)
15a Concave groove 15b Opening portions 15b1 to 15b4 Mounting hole 16 Guide rail 16a Bent portion 17 Roller assembly 21 Vehicle automatic opening / closing device 22a, 22b Cable 23 Drive unit 23a Unit case 24, 25 Pulley assembly 26 Output shaft 27 Drum 28 Electric motor 29 Control unit 31a, 31b Outer tube 32a, 32b Slide cap 33 Spring 35 Pulley 36 Pulley case 36a, 36b Case half 36c Mounting surface 36c1-36c4 Insertion hole 36d, 36e Combined surface 37 Bolt 38 Nut 41 Pulley shaft 42 Cable access hole 43 Connection hole 51 Cover 52 Cover part 52a Through hole 53 Seal part 53a Projection part 54 Temporary fastening claw part 55 Contact part 61 Temporary fastening part 61a Engagement hole 62 Engagement shaft 63 Receiving 71 engaging projection 71a flat face 72 engaging hole 72a locking surface

Claims (5)

An automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body that is detachably attached to a vehicle body,
A cable connected to the opening and closing body;
A drive source for driving the cable to open and close the opening and closing body;
A pulley that is rotatably accommodated in a pulley case fixed to the opening of the vehicle body, and that changes a moving direction of the cable between the opening and closing body and the drive source;
A cover provided with a through-hole through which the cable passes and covering the cable entrance / exit hole of the pulley case; and a cover provided with a seal portion formed integrally with the cover and sandwiched between the vehicle body and the pulley case. And
An automatic opening and closing device for a vehicle, wherein the cover is provided with a temporary fixing portion for temporarily fixing the cover to the pulley case.   2. The automatic opening / closing device for a vehicle according to claim 1, wherein a pair of case halves are combined in the axial direction of the pulley to form the pulley case, and one case half is combined with the other case half. An automatic opening and closing device for a vehicle, wherein an engagement shaft projecting toward a combination surface is provided, and the temporary fixing portion is formed in a tongue shape having an engagement hole engaged with the engagement shaft.   3. The automatic opening / closing device for a vehicle according to claim 2, wherein the seal portion is formed in an outer rectangular shape having a length dimension in a direction perpendicular to the axial direction of the pulley longer than a length dimension parallel to the axial direction of the pulley. An automatic opening and closing device for a vehicle, wherein the cover is temporarily fixed so as to be rotatable about the engagement shaft by providing the temporary fixing part at one end in the longitudinal direction of the seal part.   4. The automatic opening / closing device for a vehicle according to claim 3, wherein the through hole is arranged to be biased toward the opening / closing body with respect to the pulley and is temporarily fixed to an end portion of the seal portion on the same side as the side where the through hole is biased. An automatic opening / closing device for a vehicle, characterized in that a part is provided.   The automatic opening and closing device for a vehicle according to any one of claims 1 to 4, wherein a locking hole having a locking surface perpendicular to a mounting direction of the cover portion to the pulley case is formed in the pulley case. An automatic opening / closing device for a vehicle, wherein an engaging projection for engaging with the locking hole is formed on the cover portion.

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