JP2008223222A - Automatic opening and closing device for vehicle and assembling method for it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate assembling work for a guide member to the tip of a cover. <P>SOLUTION: A pulley case for housing a pulley to freely rotate is fixed to a vehicle body, and a cable connected to a slide door is guided to the interior of the pulley case through a cable inlet/outlet hole, and stretched over the pulley. A cover 51 covering the cable inlet/outlet hole is mounted on the pulley case, the cover 51 is provided with a tip part 53 where a through hole 53a for inserting and removing the cable is formed, and the tip part 53 is connected to a body part 52 by the bellows part 57 to freely tilt. A guide member 61 is removably mounted on the outside of the tip part 53, and the cable is passed through a support hole 63a provided in the guide member 61, so that the cable is slidably supported by the guide member 61. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automatic opening / closing device for a vehicle that automatically opens and closes an opening / closing body provided in a vehicle body, and an assembling method thereof.

  Vehicles such as automobiles are provided with opening and closing bodies such as doors and sunroofs everywhere. For example, a side door of a car body such as a wagon car or a one-box car is provided with a sliding door that opens and closes along a guide rail so that boarding and unloading and loading / unloading of luggage can be easily performed. Has been.

  Normally, these opening / closing bodies are manually opened / closed. Recently, however, vehicles have been developed in which an opening / closing body is automatically opened / closed by an automatic opening / closing device. For example, in a vehicle equipped with a sliding door, a cable-type automatic opening / closing that automatically opens and closes the sliding door by driving a cable connected to the sliding door by a drive unit that uses an electric motor or the like as a driving source. The device is installed.

  In the cable type automatic opening and closing device, the cable drawn from the drive unit is guided to the sliding door from the opening and closing direction, and between the sliding door that opens and closes outside the vehicle body and the drive unit disposed inside the outer panel of the vehicle body It is necessary to manage the cable. Therefore, openings are formed in the outer panel of the vehicle body at both ends of the guide rail, and pulley devices are attached to these openings. The pulley device has a structure in which a pulley is rotatably accommodated by a support shaft inside a pulley case having a pair of cable entry / exit holes. The moving direction is converted by the pulley.

  In addition, a cover is attached to the pulley case in order to prevent rainwater and the like from entering the inside of the outer panel through the cable access hole. The cover is formed of a rubber material, and is fixed to the pulley case at the main body portion so as to cover a cable access hole that opens toward the outside of the vehicle body. Further, the cover is provided with a tip portion integrally with the main body portion, and the cable is drawn out of the cover from a through hole formed in the tip portion.

  However, since the cover is formed of a rubber material, the inner surface of the through hole is worn by sliding with the cable, and there is a possibility that the waterproof and dustproof effect may be reduced. In particular, when the cable tilts with the movement of the slide door, the frictional resistance with the cable increases, and the wear of the through hole is promoted.

Therefore, for example, in the automatic opening / closing apparatus described in Patent Document 1, a resin guide member having a support hole coaxial with the through hole is provided inside the tip portion where the through hole of the cover is provided, and the cable is provided by this guide member. Is slidably supported to suppress wear of the through hole.
JP 2003-170743 A

  However, in the automatic opening / closing device disclosed in Patent Document 1, since the guide member is provided inside the front end portion of the cover, if the pulley device is reduced in size, the guide member also becomes smaller, and the assembling work into the cover is difficult. It becomes. In particular, when the guide member is incorporated into the tip of the cover by insert molding, it is not easy to set the guide member to the cover mold, and the guide member is injected by the rubber material injection pressure at the time of molding. May cause misalignment. Furthermore, since the guide member incorporated in the cover cannot be visually observed from the outside, it is difficult to perform an inspection operation for confirming the positional deviation or the like.

  An object of the present invention is to facilitate an assembling operation of a guide member to a front end portion of a cover.

  The 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 provided in a vehicle body, and a cable connected to the opening and closing body and the opening and closing body by driving the cable. A drive source that opens and closes, a pair of cable access holes, a pulley case that is fixed to the vehicle body, and is rotatably accommodated in the pulley case, and the cable moves between the opening and closing body and the drive source A pulley that converts the direction, a main body fixed to the pulley case, and a tip formed with a through hole through which the cable passes, a cover that covers one of the cable access holes, and an outer side of the tip And a guide member that is slidably supported by the cable.

  The automatic opening / closing device for a vehicle according to the present invention is provided with an annular groove on the outer peripheral surface of the tip formed in a cylindrical shape, and has an annular convex portion that engages with the groove, and is disposed on the outer periphery of the tip. The guide member is provided with a cylindrical portion having a support hole through which the cable is inserted and a support portion arranged in the axial direction at the distal end portion.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that an annular lip portion that elastically contacts the cable is formed on an inner peripheral surface of the through hole.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that the lip portion is provided to be shifted in the axial direction with respect to the groove portion.

  An automatic opening / closing device for a vehicle according to the present invention includes a bellows portion provided between the main body portion and the tip portion of the cover, and connected to the main body portion so as to be tiltable. A pair of ribs are provided symmetrically on the bellows part, each extending in the axial direction of the bellows part and formed at a height within the range of the outer shape of the bellows part.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that the pair of ribs are provided in a direction parallel to the axial direction of the pulley of the bellows portion.

  The automatic opening / closing device for a vehicle according to the present invention is a seal portion that is provided integrally with the main body portion and is sandwiched between the pulley case and the vehicle body when the pulley case is attached to an opening formed in the vehicle body. It is characterized by having.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that the entire portion of the pulley case exposed to the outside from the opening is covered with the cover.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that the guide member is detachably attached to the tip portion.

  The 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 provided in a vehicle body, and a cable connected to the opening and closing body and the opening and closing body by driving the cable. A drive source that opens and closes, a pair of cable access holes, a pulley case that is fixed to the vehicle body, and is rotatably accommodated in the pulley case, and the cable moves between the opening and closing body and the drive source A pulley that changes direction, a main body fixed to the pulley case, and a tip formed with a through-hole through which the cable passes, and a cover that covers one of the cable access holes, and is provided at the tip And a mounting portion on which a guide member that slidably supports the cable is mounted.

  The method of assembling the automatic opening / closing device for a vehicle according to the present invention includes a cable connected to an opening / closing body provided in a vehicle body, a drive source for driving the cable, and a pulley case fixed to the vehicle body, and is rotatably accommodated. A cover for covering a cable entry / exit hole of the pulley case, comprising: a pulley for changing a moving direction of the pulley; a main body portion fixed to the pulley case; and a tip portion formed with a through hole through which the cable passes; and the tip portion An automatic opening and closing device for a vehicle that automatically opens and closes the opening and closing body, and includes a guide member that is mounted on a cylindrical portion of the guide member. Engaging the convex portion of the guide member with an annular groove formed on the outer peripheral surface of the tip portion, and mounting the guide member on the outside of the tip portion; and connecting one end of the cable to the tip A step of passing through the through hole formed in the portion and the support hole formed in the support portion of the guide member, the cable is passed over the pulley, the pulley is accommodated in the pulley case, and the cover is It has the process of attaching to a pulley case, and the process of connecting the end of the said cable to the said opening-closing body, It is characterized by the above-mentioned.

  According to the present invention, since the guide member that slidably supports the cable is attached to the outside of the front end portion of the cover, the assembly work of the guide member to the front end portion of the cover can be facilitated. Further, since the guide member is mounted on the outer side of the distal end portion, the mounted state can be visually observed from the outside, and inspection work such as misalignment of the guide member and misassembly is facilitated.

  Further, according to the present invention, when the guide member is mounted on the tip portion, the cylindrical portion of the guide member engages with the annular groove portion provided on the outer peripheral surface of the tip portion. Since the support part provided with the support hole through which the cable is inserted is arranged side by side in the tip part in the axial direction, the assembly work of the guide member to the tip part is facilitated. Can do. In addition, by inserting the cable into the through hole and the support hole after the guide member is attached to the tip portion, deformation of the groove portion after the guide member is assembled can be suppressed by the cable. It can be easily attached to and difficult to come off.

  Furthermore, according to the present invention, since the annular lip portion that elastically contacts the cable is provided on the inner peripheral surface of the through hole, foreign matters such as rainwater and dust enter the pulley case from the through hole. This can be prevented.

  Furthermore, according to the present invention, the lip portion formed on the inner peripheral surface of the through hole is provided so as to be shifted in the axial direction with respect to the groove portion formed on the outer peripheral surface of the tip portion. It is possible to improve the wiping property of the lip portion by suppressing the elastic deformation of the lip portion by the convex portion.

  Furthermore, according to the present invention, the bellows portion provided between the main body portion and the tip portion of the cover is provided with a pair of ribs, and this rib increases the axial strength of the bellows portion. It is possible to prevent the portion from being pulled into the cover, and to improve the operation reliability of the vehicle automatic opening / closing device.

  Further, according to the present invention, since the pair of ribs are provided in a direction parallel to the axial direction of the bellows portion pulley, the strength of the bellows portion in the axial direction can be reduced without reducing the followability of the tip portion with respect to the cable. Can be increased.

  Furthermore, according to the present invention, since the seal portion provided integrally with the main body portion of the cover is sandwiched between the pulley case and the vehicle body, rainwater, dust, etc. enter the vehicle body from the clearance between the pulley case and the opening portion. It is possible to prevent foreign matter from entering.

  Furthermore, according to the present invention, since the entire portion exposed to the outside from the opening of the pulley case is covered with the cover, even if the pulley case is an assembly type, the combination case etc. It is possible to prevent foreign substances such as water and dust from entering.

  Furthermore, according to the present invention, since the guide member is detachably attached to the tip portion, the automatic opening / closing device for a vehicle can be easily adapted to the difference in specifications with and without the guide member.

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

  FIG. 1 is an explanatory view showing an outline of a vehicle provided with an automatic opening and closing device for a vehicle according to an embodiment of the present invention. On the side of a vehicle body 12 of this vehicle 11, passengers get on and off and load and unload luggage. For example, a slide door 13 is provided as an opening / closing body.

  The slide door 13 includes a roller assembly 14. On the other hand, a guide rail 16 extending in the vehicle front-rear direction is fixed to the outer panel 15 of the vehicle body 12, and the roller assembly 14 is guided by the guide rail 16. Is slidably opened and closed in the vehicle front-rear direction between a fully closed position indicated by a one-dot chain line in the figure and a fully open position indicated by a solid line in the figure. A curved portion 16a that bends toward the vehicle interior side is provided on the vehicle front side of the guide rail 16, and the roller assembly 14 is guided by the curved portion 16a, so that the slide door 13 is flush with the side surface of the vehicle body 12. In this way, it is drawn inside the vehicle body 12 and closed.

  Although not shown in the drawing, the roller assembly 14 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 respectively provided at the upper and lower parts of the vehicle body 12, and the sliding doors 13 are supported by the vehicle body 12 at a total of three locations.

  In order to automatically open and close the sliding door 13, the vehicle 11 is equipped with a vehicle automatic opening / closing device 21 (hereinafter referred to as an opening / closing device 21).

  FIG. 2 is a perspective view showing details of the opening / closing device shown in FIG. 1, and this opening / closing device 21 includes a pair of cables 22 a and 22 b connected to the slide door 13 (roller assembly 14) and a drive unit 23. It is a cable type, and has a structure in which the cables 22 a and 22 b are driven by the drive unit 23 to open and close the slide door 13.

  The drive unit 23 is positioned substantially in the middle of the guide rail 16 in the longitudinal direction and is fixed to the vehicle body 12 inside the outer panel 15. An opening-side cable 22a connected to the slide door 13 from the rear side of the vehicle is changed in the moving direction by a rear-side pulley device 24 positioned at the rear end portion of the guide rail 16 and fixed to the vehicle body 12, and the rear side of the vehicle. It is led to the drive unit 23 from the side. On the other hand, the closing cable 22b connected to the slide door 13 from the front side of the vehicle is positioned at the front end of the guide rail 16 and is moved in the direction of movement by the front pulley device 25 fixed to the vehicle body 12 (outer panel 15). Is converted and guided to the drive unit 23 from the front side of the vehicle. The cables 22a and 22b are cables whose outer surfaces are coated with a resin to prevent rust and the like.

  FIG. 3 is a partially cutaway cross-sectional view showing details of the drive unit shown in FIG. 2. The drive unit 23 includes an electric motor 26 as a drive source, and the output of the electric motor 26 passes through a reduction mechanism (not shown). Is transmitted to the output shaft 27. A drum 28 formed in a cylindrical shape is fixed to the output shaft 27, and the cables 22a and 22b led to the drive unit 23 are wound around the outer periphery of the drum 28 a plurality of times in opposite directions, and at the ends thereof. It is fixed to the drum 28. Thereby, when the electric motor 26 is operated, the power is transmitted to the output shaft 27 through the speed reduction mechanism, and the drum 28 rotates.

  When the drum 28 rotates clockwise in FIG. 3, the cable 22a on the vehicle rear side is wound around the drum 28, the cable 22b on the vehicle front side is unwound from the drum 28, and the slide door 13 is pulled by the cable 22a. Automatically opens. On the contrary, when the drum 28 rotates counterclockwise in FIG. 3, the cable 22b on the front side of the vehicle is wound around the drum 28 and the cable 22a on the rear side of the vehicle is unwound from the drum 28. It is automatically closed by being pulled by. As described above, the opening / closing device 21 can automatically open and close the slide door 13 by driving the cables 22a and 22b by the electric motor 26 by controlling the operation of the electric motor 26. ing.

  As the electric motor 26, for example, a brushable DC motor or the like that can be rotated forward and reverse is used, and the operation control of the electric motor 26 is performed by a control unit 29 including a CPU, a memory, and the like.

  As shown in FIG. 2, outer tubes 31a and 31b are provided between the drive unit 23 and the pulley devices 24 and 25, and the cables 22a and 22b are connected between the drive unit 23 and the pulley devices 24 and 25. 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 of a flexible resin material so that they can be bent, and one ends thereof are fixed to corresponding pulley devices 24 and 25, respectively. As shown in FIG. 3, metal slide caps 32 a and 32 b are fixed to the other ends of the outer tubes 31 a and 31 b, and these slide caps 32 a and 32 b move forward and backward to the unit case 23 a of the drive unit 23. While being supported freely, it is urged | biased by the direction pushed out from the unit case 23a by the spring 33 provided in the inside of the unit case 23a. As a result, the outer tubes 31a and 31b are pushed out of the unit case 23a to bend between the drive unit 23 and the pulley devices 24 and 25, and the movement paths of the cables 22a and 22b between the drive unit 23 and the pulley devices 24 and 25. Is stretched and a predetermined tension is applied to the cables 22a and 22b. The outer tubes 31a and 31b are filled with grease so that the cables 22a and 22b can be moved smoothly.

  4 is a plan view showing details of the rear pulley apparatus shown in FIG. 2, and FIG. 5 is an exploded perspective view of the pulley apparatus shown in FIG.

  The rear pulley device 24 arranged on the rear end side of the guide rail 16 has a structure in which a pulley 42 (shown by a broken line in FIG. 4) is accommodated inside a pulley case 41. The outer panel 15 of the vehicle body 12 is formed with an opening 15a for routing the cable 22a between the slide door 13 and the drive unit 23, and the pulley device 24 straddles the outer panel 15 over the opening 15a. Placed in. The pulley case 41 is provided with three attachment portions 41 a, and the pulley case 41, that is, the pulley device 24 is fixed to the outer panel 15 by bolts 43 and nuts 44 in these attachment portions 41 a.

  As shown in FIG. 5, the pulley case 41 is provided with a pair of cable entry / exit holes 41b and 41c that open to the inside and outside of the outer panel 15, respectively, and the cable 22a passes through these cable entry / exit holes 41b and 41c. It is drawn into the pulley case 41 and guided to the inside and outside of the outer panel 15 via the pulley device 24. The cable entry / exit hole 41b that opens to the outside of the vehicle body is formed in a long rectangular shape along the groove direction of the pulley 42, and the angle of the cable 22a drawn from the pulley 42 changes according to the position of the slide door 13. However, the cable 22a is prevented from contacting the outer peripheral portion of the cable access hole 41b, that is, the pulley case 41.

  On the other hand, as shown in FIG. 5, the pulley 42 is formed in a disk shape from a resin material, and a pulley groove 42a is provided on the outer peripheral portion thereof. The cable 22a drawn into the pulley case 41 is connected to the pulley groove 42a. At the pulley 42 and the direction of movement is changed by the pulley 42. A shaft hole 42b is provided in the shaft center of the pulley 42, and a metal support shaft 45 is inserted into the shaft hole 42b. The pulley 42 is supported by the support shaft 45 and is rotatably accommodated in the pulley case 41. The

  The pulley case 41 has a first case half 46 and a second case half 47 each formed in a substantially semicircular shape, and the support shaft 45 is supported by the first case half 46. The second case half 47 is assembled to the first case half 46 from the radial direction of the pulley 42, thereby forming the pulley case 41.

  As shown in FIGS. 4 and 5, a cover 51 formed of a flexible elastic material such as rubber is attached to the pulley case 41.

  The cover 51 includes a main body portion 52 formed in a substantially semicircular shape corresponding to the second case half body 47 and a distal end portion 53 projecting from the main body portion 52 in a substantially tangential direction. It is attached to the outside of the second case half 47 along the radial direction of the pulley 42 from the opposite side. The cover 51 is provided with four claw portions 54, and these claw portions 54 are engaged with locking holes 55 provided in the second case half 47 so that the main body portion 52 of the cover 51 is in the second case. Temporarily fixed to the half 47.

  An annular seal portion 56 is integrally formed on the outer periphery of the opening of the main body portion 52 of the cover 51. As shown in FIG. 4, the seal portion 56 is sandwiched between the pulley case 41 and the outer panel 15 when the pulley device 24 is attached to the opening 15 a, and between the opening 15 a and the pulley case 41. To seal. Thereby, intrusion of rainwater or the like from the opening 15a to the inside of the outer panel 15 is prevented. Further, when the seal portion 56 is sandwiched between the pulley case 41 and the outer panel 15, the main body portion 52 of the cover 51 is securely fixed to the pulley case 41.

  When the cover 51 is attached, the outer periphery of the second case half 47, that is, the entire portion exposed to the outside of the outer panel 15 from the opening 15 a of the pulley case 41 is covered with the cover 51. Accordingly, the cable entry / exit hole 41b facing the outside of the vehicle body of the pulley case 41 is also covered with the cover 51, thereby preventing rainwater and the like from entering the cable entry / exit hole 41b.

  Even when the pulley case 41 is assembled by covering the entire portion exposed to the outside from the opening 15a of the pulley case 41 with the cover 51, rainwater can be introduced into the pulley case 41 from the combination portion or the like. It is possible to prevent foreign matters such as dust and the like from entering.

  On the other hand, the front end portion 53 of the cover 51 is formed in a cylindrical shape, and a through hole 53a is provided in the shaft center, and the cable 22a entering / exiting from the cable entrance / exit hole 41b is inserted into the through hole 53a to be connected to the pulley case 41. That is, it is guided inside and outside the cover 51. Further, a bellows portion 57 is provided between the tip portion 53 and the main body portion 52, and the bellows portion 57 is elastically deformed in a direction in which the axial direction is bent, whereby the tip portion 53 opens and closes the slide door 13. The cable 22a can be tilted with respect to the main body 52 following the tilting of the cable 22a. In the present embodiment, the connecting portion of the main body portion 52 with the bellows portion 57 is a cylindrical portion 52a, and the cylindrical portion 52a, the bellows portion 57, and the tip portion 53 are arranged coaxially.

  As shown in FIG. 4, a guide member 61 is attached to the outside of the distal end portion 53, and the cable 22 a drawn from the distal end portion 53 toward the slide door 13 is slidably supported by the guide member 61. It is like that.

  FIG. 6 is a perspective view showing the details of the guide member mounted on the tip of the cover, and FIG. 7 is a cross-sectional view taken along the line AA in FIG.

  As shown in FIGS. 6 and 7, the guide member 61 is formed in a cylindrical portion 62 formed in a cylindrical shape and a plate shape perpendicular to the axial direction, and is offset from the cylindrical portion 62 in the axial direction. A support part 63 and a pair of leg parts 64 that connect both ends of the support part 63 to the outer periphery of the cylindrical part 62 are provided, and these are integrally formed of a resin material. The inner diameter of the cylindrical portion 62 is slightly larger than the outer diameter of the distal end portion 53, and when the guide member 61 is mounted on the outer side of the distal end portion 53, the cylindrical portion 62 is placed on the outer peripheral side of the distal end portion 53. It arrange | positions coaxially with the part 53, ie, it covers the radial direction outer side of the front-end | tip part 53. FIG. Further, an annular convex portion 62a that projects toward the axial center is integrally provided on the inner peripheral surface of the cylindrical portion 62, while the outer peripheral surface of the tip portion 53 is located at a substantially intermediate portion in the axial direction. An annular groove 53b as a mounting portion is formed to be recessed in the radial direction, and when the cylindrical portion 62 is disposed on the outer peripheral side of the distal end portion 53, the convex portion 62a of the cylindrical portion 62 becomes the groove 53b of the distal end portion 53. It is designed to engage. Thus, by attaching the cylindrical portion 62 of the guide member 61 to the groove portion 53 b, the cylindrical portion 62, that is, the guide member 61 is held by the distal end portion 53, and separation from the distal end portion 53 is prevented.

  When the cylindrical portion 62 is disposed on the outer peripheral side of the distal end portion 53, the support portion 63 is disposed side by side in the axial direction on the distal end portion 53 and faces the distal end portion 53 in the axial direction. A support hole 63 a having an inner diameter substantially the same as the outer diameter of the cable 22 a is provided in the shaft center of the support part 63, and the support hole 63 a is coaxial with the through hole 53 a of the tip part 53. The cable 22a drawn out of the cover 51 from the through hole 53a is inserted into the support hole 63a. That is, the support part 63 is configured to slidably support the cable 22a inserted through the support hole 63a. Thereby, when the cable 22a is tilted with respect to the pulley case 41 in accordance with the opening / closing operation of the slide door 13, the load in the tilting direction of the cable 22a is supported by the support portion 63, that is, the guide member 61 attached to the distal end portion 53. Further, the load in the tilt direction is transmitted to the distal end portion 53 via the guide member 61, and the distal end portion 53 swings.

  A pair of annular lip portions 53c are provided on the inner peripheral surface of the distal end portion 53 so as to protrude radially inward. The inner diameters of these lip portions 53c are set to be slightly smaller than the outer diameter of the cable 22a, and come into contact with the outer peripheral surface of the cable 22a inserted through the through hole 53a of the distal end portion 53, that is, elastically. ing. As a result, foreign matter such as rainwater and dust adhering to the cable 22a can be scraped off by the lip portion 53c, and the foreign matter can be prevented from entering the cover 51 and the pulley case 41.

  The lip portions 53c are arranged so as to be shifted in the axial direction with respect to the groove portion 53b. That is, the groove portion 53 b formed on the outer peripheral surface of the tip end portion 53 is disposed at an intermediate portion between the pair of lip portions 53 c formed on the inner peripheral surface of the tip end portion 53. Accordingly, the elastic deformation in the radial direction of the distal end portion 53, that is, the lip portion 53c provided thereon, is suppressed by the convex portion 62a of the guide member 61 engaged with the groove portion 53b, and the lip portion 53c is wiped off. Can increase the sex.

  FIG. 8 is a process diagram of the assembly operation of the pulley device and the cable of the opening / closing device shown in FIG. 2, and FIGS. 9A to 9C are perspective views for explaining the procedure of assembling the guide member to the cover.

  Next, a method for assembling the switchgear will be described with reference to FIGS.

  When the drive unit 23 in a state where the cables 22a and 22b are wound around the drum 28 in advance is fixed to the inside of the outer panel 15 of the vehicle body 12, a guide member mounting process is performed as shown in FIG. .

  In the guide member mounting step, as shown in FIGS. 9A and 9B, the guide member mounting process is performed on the outer side of the tip portion 53 so that the convex portion 62 a of the cylindrical portion 62 is engaged with the groove portion 53 b of the tip portion 53 of the cover 51. A guide member 61 is mounted. At this time, the cable 22a is not yet inserted into the through hole 53a of the distal end portion 53 or the support hole 63a of the guide member 61, and when the guide member 61 is attached to the distal end portion 53, the distal end portion 53 is moved in the radial direction. The guide member 61 is attached to the distal end portion 53 by engaging the convex portion 62a of the cylindrical portion 62 with the groove portion 53b of the distal end portion 53 while elastically deforming inward, that is, in the direction of reducing the diameter of the through hole 53a.

  When the guide member is attached to the distal end portion 53, a cable insertion process is then performed as shown in FIG. In the cable insertion step, after one end of the cable 22a guided from the drive unit 23 is inserted into the cable access holes 41b and 41c provided in the case halves 46 and 47, as shown in FIG. Is inserted into a through hole 53a provided in the distal end portion 53 and a support hole 63a of the guide member 61. As described above, when the cable 22a is inserted into the through hole 53a of the distal end portion 53 after the guide member 61 is attached to the distal end portion 53, the elastic deformation of the distal end portion 53 inward in the radial direction is restricted by the cable 22a. Accordingly, the detachment of the convex portion 62 a from the groove portion 53 b is restricted, and the guide member 61 is reliably held by the distal end portion 53. Note that the piece member 65 (see FIG. 5) for connecting one end of the cable 22a to the slide door 13 is caulked after one end of the cable 22a is inserted into the through hole 53a and the support hole 63a. It is fixed to the end of 22a.

  When the cable 22a is inserted through the through hole 53a of the distal end portion 53 and the support hole 63a of the guide member 61, a pulley device assembling step is then performed as shown in FIG. In the pulley device assembling step, the cable 22 a is stretched over the pulley 42 and the pulley 42 is rotatably supported by the first case half 46 by the support shaft 45, and then the first case half 46 is The two case halves 47 are combined to accommodate the pulley 42 in the pulley case 41. A cover 51 is attached to the outside of the pulley case 41 that houses the pulley 42 to assemble the pulley device 24, and the assembled pulley device 24 is fixed to the opening 15 a of the outer panel 15.

  Next to the pulley device assembly step, as shown in FIG. 8, a cable connection step is performed, and one end of the cable 22 a pulled out from the cover 51 of the pulley device 24 fixed to the outer panel 15 is connected to the roller assembly of the slide door 13. 14.

  As described above, in the opening / closing device 21, since the resin guide member 61 is attached to the distal end portion 53 and the cable 22a is slidably supported by the guide member 61, the rubber is caused by friction with the cable 22a. It is possible to prevent the through-hole 53a of the made cover 51 from being worn and to improve the dust-proof property of the cover 51. Further, since the guide member 61 is mounted on the outer side of the front end portion 53 of the cover 51, the assembly work of the guide member 61 to the front end portion 53 of the cover 51 can be facilitated. Furthermore, since the guide member 61 is mounted on the outside of the distal end portion 53, the mounting state of the guide member 61 can be visually observed from the outside, and inspection work such as misalignment or misassembly of the guide member 61 is easy. Can be.

  Further, in this opening / closing device 21, since the annular convex portion 62a provided in the cylindrical portion 62 is engaged with the annular groove portion 53b provided in the distal end portion 53, the guide member 61 is held by the distal end portion 53. Assembling work of the guide member 61 to the distal end portion 53 can be facilitated. Further, by inserting the cable 22a through the through hole 53a and the support hole 63a after the guide member 61 is attached to the distal end portion 53, deformation of the groove 53b after the guide member 61 is assembled is suppressed by the cable 22a. As a result, the guide member 61 can be easily attached to the distal end portion 53 and difficult to come off.

  Furthermore, in this opening / closing device 21, the guide member 61 is mounted on the outside of the front end portion 53 of the cover 51, and the cable 22a is inserted into the through hole 53a to prevent the cover 51 from being detached from the front end portion 53. Due to the structure, the guide member 61 is detachable from the cover 51. That is, since the guide member 61 can be easily attached to the cover 51 after the cover 51 is formed, the guide member 61 is attached and detached according to the specification difference between the presence and absence of the guide member 61 of the opening and closing device 21. It is possible to easily correspond to the specification.

  FIG. 10 is a cross-sectional view showing details of the front pulley device, and FIG. 11 is a perspective view showing details of a cover attached to the front pulley device. 10 and 11, members corresponding to those described above are denoted by the same reference numerals, and redundant description is omitted.

  Similar to the rear pulley device 24, the front pulley device 25 includes a pulley case 41. A pulley 42 is rotatably accommodated in the pulley case 41, and a closed cable 22b is stretched over the pulley 42. It is. A cover 51 is attached to the pulley case 41 so as to cover the cable entry / exit hole 41 b that opens to the outside of the vehicle body of the pulley case 41. In this case, the seal portion 56 formed integrally with the main body portion 52 of the cover 51 is formed in a skirt shape, and the pulley device 25 is attached to the outer panel 15 so as to press the seal portion against the outer periphery of the opening portion of the outer panel 15. Fixed. Further, a guide member 61 similar to the pulley device 24 on the rear side is mounted on the outside of the front end portion 53 of the cover 51, and the cable 22b is slidably supported by the guide member 61.

  12 to 13 show modified examples of the bellows portion 47 provided on the cover 51, FIG. 12 is a cross-sectional view showing details of ribs provided on the bellows portion of the cover, and FIG. 13 shows the arrangement of the ribs shown in FIG. FIG.

  As shown in FIG. 12, the distal end portion 53 is formed in a cylindrical shape whose outer diameter dimension D1 is smaller than the inner diameter dimension D2 of the cylindrical portion 52a. That is, the distal end portion 53 has a cylindrical shape with an outer diameter that can enter and exit the cylindrical portion 52a.

  Here, the “outer / outside diameter” of the distal end portion 53 means the distal end when the connecting portion between the main body portion 52 and the bellows portion 57 is a cylindrical tubular portion 52a as shown in the present embodiment. When the portion 53 has an outer diameter smaller than the inner diameter of the cylindrical portion 52a and the connecting portion between the main body portion 52 and the bellows portion 57 has, for example, a rectangular opening, for example, on the inner surface of the connecting portion The outer diameter of the distal end portion 53 is smaller than the axial width of the pulley 42, indicating that the distal end portion 53 can enter and exit the main body portion 52 from the opening. I don't get into it.

  As shown in FIGS. 12 and 13, the bellows portion 57 is provided with a pair of ribs 71 in order to prevent excessive elastic deformation of the bellows portion 57 in the axial direction. Each of these ribs 71 is formed integrally with the bellows portion 57 inside the groove portion 57b of the bellows portion 57, and extends in the axial direction of the bellows portion 57 from the side surface of one peak portion 57a to the other peak portion 57a. Reaching the side.

  As shown in FIG. 12, these ribs 71 are formed at a height within the range of the outer shape of the bellows portion 57. In other words, the rib 71 is formed such that the height dimension H1 thereof is lower than the height dimension H2 of the conical outer surface S of the bellows portion 57 connecting the tops of the peak portions 57a. Here, the height dimension H1 of the rib 71 is the radial distance from the axis L1 passing through the axis of the bellows portion 57 to the radially outermost portion of the rib 71, and the height dimension H2 of the outer surface S. Is the distance from the axis L1 of the bellows portion 57 to the outer surface S.

  In addition, when each peak part 57a is formed in the mutually same height dimension and the external surface S of the bellows part 57 becomes cylindrical shape, the rib 71 is formed in the height lower than the said peak part 57a.

  Further, in addition to the height within the range of the outer shape of the bellows portion 57, the bellows portion 57 is formed at a height that protrudes outward from the inner surface of the cylindrical portion 52a, as shown in FIG. Yes. That is, the height dimension H1 of the rib 71 is set to be larger than the radius of the inner surface of the cylindrical portion 52a (dimension of one-half of the radial dimension D2 from the axis L1 to the inner surface). A part of the cylindrical portion 52a faces the axial end portion.

  Thus, since the rib 71 is provided in the bellows part 57, the elastic modulus of the axial direction of the site | part in which the rib 71 of the said bellows part 57 is provided is raised. Therefore, even when a load is applied from the cable 22a to the distal end portion 53 toward the tubular portion 52a, the elastic deformation in the axial direction of the bellows portion 57 is restricted by the rib 71, and the distal end portion 53 is 52a of the tubular portion. It is prevented from getting inside.

  Further, since the bellows portion 57 is formed at a height that protrudes outward from the inner surface of the cylindrical portion 52a, even if the tip portion 53 is formed in a cylindrical shape having an outer diameter smaller than the inner diameter of the cylindrical portion 52a, When the rib 71 comes into contact with the axial end portion of the cylindrical portion 52a, the elastic deformation of the bellows portion 57 can be firmly restricted.

  Further, since the rib 71 is formed to have a height H1 that does not protrude outward in the radial direction from the outer shape of the bellows portion 57, the load applied from the cable 22a to the tip portion 53 is directly passed through the rib 71. It is possible to prevent the cover 51 from being easily detached from the pulley case 41 by being transmitted to the main body portion 52.

  On the other hand, as shown in FIG. 13, these ribs 71 are parallel to the axial direction of the pulley 42, that is, the support shaft 45, and are symmetrical with respect to each other about the axis of the through hole 53 a and the bellows portion 57 (point symmetry). ). That is, one rib 71 is provided on the surface of the bellows portion 57 on the vehicle upper side along an axis L3 parallel to the axial direction L2 of the support shaft 45 passing through the axis of the bellows portion 57, and the other rib 71 is It is provided on the surface of the bellows portion 57 on the vehicle lower side along the axis L3. As a result, the axis L3 connecting the center portions in the circumferential direction of the ribs 71 is parallel to the support shaft 45 and is orthogonal to a plane parallel to the tilting direction of the cable 22a.

  When the cable 22a is tilted in the direction indicated by the arrow A in the drawing (around the support shaft 45 of the pulley 42) and the bellows part 57 is elastically deformed in the bending direction along with this, the axis of the bellows part 57 is deformed. The portions on both sides of the cable 22a in the tilting direction are greatly elastically deformed, but the portions on both sides in the direction orthogonal to the tilting direction of the cable 22a with respect to the axis of the bellows portion 57, that is, the portions provided with the ribs 71 are not so elastically deformed. Therefore, even if 71 for increasing the strength in the axial direction is provided on the bellows portion 57, the influence on the flexibility of the bellows portion 57 in the direction following the cable 22a can be minimized.

  Thus, in this opening / closing device 21, since the pair of ribs 71 are provided in a direction parallel to the axial direction of the pulley 42 of the bellows portion 57, the followability of the distal end portion 53 with respect to the cable 22a is reduced. The strength of the bellows portion 57 in the axial direction can be increased.

  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 above-described embodiment, the cover 51 is temporarily fixed to the second case half 47 by engaging the four claw portions 54 with the locking holes 55. However, the present invention is not limited to this. Instead, the cover 51 may be formed of an elastomer material, and may be fixed to the second case half 47 by integrally molding it with the second case half 47 made of resin by two-color molding or the like. . Thereby, the adhesive for fixing the cover 51 to the second case half 47, the claw portion 54, and the locking hole 55 are unnecessary, and the cost of the pulley device 24 can be reduced. Further, since the second case half 47 and the cover 51 are integrally formed, the number of parts can be reduced and the part management cost of the pulley device 24 can be reduced.

  In the embodiment, the guide member 61 is formed in a shape including the cylindrical portion 62 and the support portion 63, but is not limited thereto, and is attached to the outside of the distal end portion 53 and pulled out from the distal end portion 53. Other shapes may be used as long as the cable 22a can be slidably supported.

  Further, in the above-described embodiment, the convex portion 62a is provided on the inner peripheral surface of the guide member 61, the groove portion 53b is provided on the outer peripheral surface of the distal end portion 53, and the convex portion 62a is engaged with the groove portion 53b so that the guide member 61 is engaged. Although it is made to hold | maintain at the front-end | tip part 53, it does not restrict to this, For example, a groove part is formed in the internal peripheral surface of the cylindrical part 62, a convex part is engaged with the outer peripheral surface of the front-end | tip part 53, and these are mutually engaged. As long as the guide member 61 is mounted on the outside of the distal end portion 53, for example, the holding structure may be another structure.

  Furthermore, in the above-described embodiment, the guide member 61 is formed of a resin material. However, the present invention is not limited to this, and a material that can slidably support the cable 22a and has a predetermined wear resistance. If so, it may be formed of another material such as a metal material.

It is explanatory drawing which shows the outline of the vehicle provided with the automatic opening / closing apparatus for vehicles which is one embodiment of this invention. It is a perspective view which shows the detail of the opening / closing apparatus shown in FIG. FIG. 3 is a partially cutaway cross-sectional view showing details of the drive unit shown in FIG. 2. FIG. 3 is a plan view showing details of a rear pulley apparatus shown in FIG. 2. It is a disassembled perspective view of the pulley apparatus shown in FIG. It is a perspective view which shows the detail of the guide member with which the front-end | tip part of a cover is mounted | worn. It is sectional drawing which follows the AA line in FIG. It is process drawing of the assembly | attachment operation | work of the pulley apparatus and cable of the opening / closing apparatus shown in FIG. (A)-(c) is a perspective view for demonstrating the assembly | attachment procedure of the guide member with respect to a cover. It is sectional drawing which shows the detail of the pulley apparatus of the front side. It is a perspective view which shows the detail of the cover with which the pulley apparatus of the front side is mounted | worn. It is sectional drawing which shows the detail of the rib provided in the bellows part of a cover. It is sectional drawing which shows arrangement | positioning of the rib shown in FIG.

Explanation of symbols

11 Vehicle 12 Car body 13 Sliding door (opening / closing body)
DESCRIPTION OF SYMBOLS 14 Roller assembly 15 Outer panel 15a Opening part 16 Guide rail 16a Curved part 21 Vehicle automatic opening / closing device 22a, 22b Cable 23 Drive unit 23a Unit case 24, 25 Pulley device 26 Electric motor 27 Output shaft 28 Drum 29 Control unit 31a, 31b Outer tube 32a, 32b Slide cap 33 Spring 41 Pulley case 41a Mounting portion 41b, 41c Cable entry / exit hole 42 Pulley 42a Pulley groove 42b Shaft hole 43 Bolt 44 Nut 45 Support shaft 46 First case half 47 Second case half 51 Cover 52 Body 52a Tubular 53 Tip 53a Through-hole 53b Groove 53c Lip 53 Claw 55 Locking Hole 56 Sealing 57 Bellows 57a Mountain 57b Groove 61 Guide Member 62 Cylindrical 2a protrusions 63 support portion 63a supporting hole 64 leg 65 bridge member 71 ribs D1 outer diameter D2 inner diameter H1, H2 height S outer surface L1 axis L2 axial L3 axis

Claims (11)

An automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body provided on 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 case having a pair of cable access holes and fixed to the vehicle body;
A pulley that is rotatably accommodated in the pulley case, and that changes a moving direction of the cable between the opening / closing body and the drive source;
A cover that includes a main body portion fixed to the pulley case and a tip portion in which a through hole through which the cable passes is formed, and covers one of the cable access holes;
An automatic opening and closing device for a vehicle, comprising: a guide member that is mounted on an outer side of the tip portion and slidably supports the cable.   The automatic opening and closing device for a vehicle according to claim 1, wherein an annular groove is provided on an outer peripheral surface of the tip portion formed in a cylindrical shape, and an annular convex portion that engages with the groove portion is provided on an outer periphery side of the tip portion. An automatic opening and closing device for a vehicle, wherein the guide member includes a cylindrical portion to be disposed and a support portion that is provided with a support hole through which the cable is inserted and is arranged in the axial direction at the distal end portion.   3. The automatic opening / closing device for a vehicle according to claim 1, wherein an annular lip portion that elastically contacts the cable is formed on an inner peripheral surface of the through hole.   4. The vehicle automatic opening / closing device according to claim 3, wherein the lip portion is provided so as to be shifted in the axial direction with respect to the groove portion.   5. The automatic opening / closing device for a vehicle according to claim 1, wherein the automatic opening / closing device is provided between the main body portion and the tip portion of the cover, and the tip portion is tiltably connected to the main body portion. A bellows portion, and a pair of ribs provided on the bellows portion symmetrically with respect to an axial center and extending in the axial direction of the bellows portion and formed at a height within the outer shape of the bellows portion. An automatic opening and closing device for a vehicle.   6. The automatic opening / closing device for a vehicle according to claim 5, wherein the pair of ribs are respectively provided in a direction parallel to the axial direction of the pulley of the bellows portion.   The automatic opening and closing device for a vehicle according to any one of claims 1 to 6, wherein the pulley case is provided integrally with the main body portion, and the pulley case is attached to an opening formed in the vehicle body. An automatic opening / closing device for a vehicle, comprising a seal portion sandwiched between the vehicle body and the vehicle body.   8. The automatic opening / closing device for a vehicle according to claim 7, wherein an entire portion of the pulley case exposed to the outside from the opening is covered with the cover.   9. The automatic opening / closing device for a vehicle according to claim 1, wherein the guide member is detachably attached to the tip portion. An automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body provided on 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 case having a pair of cable access holes and fixed to the vehicle body;
A pulley that is rotatably accommodated in the pulley case, and that changes a moving direction of the cable between the opening / closing body and the drive source;
A cover that includes a main body portion fixed to the pulley case and a tip portion in which a through hole through which the cable passes is formed, and covers one of the cable access holes;
An automatic opening and closing device for a vehicle, comprising: a mounting portion that is provided at the distal end portion and on which a guide member that slidably supports the cable is mounted. A cable connected to an opening / closing body provided in a vehicle body; a drive source for driving the cable; a pulley rotatably accommodated in a pulley case fixed to the vehicle body; and a pulley that changes a moving direction of the pulley; and the pulley case A cover that covers the cable entry / exit hole of the pulley case, and a guide that is attached to the tip and slidably supports the cable. An automatic opening and closing device for a vehicle that automatically opens and closes the opening and closing body,
Engaging an annular convex portion provided on the cylindrical portion of the guide member with an annular groove formed on an outer peripheral surface of the tip portion, and mounting the guide member on the outside of the tip portion;
Inserting one end of the cable into a through hole formed in the tip portion and a support hole formed in a support portion of the guide member;
Spanning the cable to the pulley, housing the pulley in the pulley case and attaching the cover to the pulley case;
And a step of connecting one end of the cable to the opening / closing body.

Images