Vehicle slide door opening / closing apparatus

Abstract

To provide a vehicle slide door opening / closing apparatus improved in assembling workability.SOLUTION: A vehicle slide door opening / closing apparatus 10 includes a belt guide 30, a belt driving module 70 which circularly moves an endless belt 50 stretched on the belt guide 30, and a belt driving module coupling unit 40 having a driving pully 43 with the endless belt 50 stretched thereon. The belt driving module 70 includes an external output shaft 724 having an external teeth serration 724a formed on an outer periphery. A shaft insertion hole 431 is formed in a rotation shaft of the driving pully 43. The shaft rotation hole 431 includes a meshing section 431b having a substantially cylindrical inner periphery, and a large-diameter shaft inlet 431c arranged at one end of the meshing section 431b. The shaft insertion hole 431 includes an internal teeth serration 431a formed from the inner periphery of the meshing section 431b to at least a part of the inner periphery of the shaft inlet.SELECTED DRAWING: Figure 19

Description

[Technical field]

[0001] The present invention relates to a vehicle slide door opening and closing device for opening and closing a slide door of a vehicle. [Background technology]

[0002] Vehicles equipped with sliding doors have been known for some time. In particular, sliding doors are often installed in vehicles such as minivans, wagons, and vans. In recent years, efforts have been made to automate the opening and closing operations of sliding doors installed in vehicles.

[0003] For example, Patent Document 1 discloses a vehicle sliding door opening and closing device that has a belt module that is attached to a vehicle body panel and guides an endless belt so that it circulates, and a motor module that drives the endless belt, and that automatically opens and closes the sliding door.

[0004] In the vehicle sliding door opening and closing device described in Patent Document 1, the motor module includes an output shaft that outputs the power of the motor to the outside, and outputs the power of the motor from the output shaft to a drive pulley to rotate the drive pulley, thereby circulating the endless belt. The output shaft has an outer circumferential surface formed with external serrations, and the rotating shaft of the drive pulley has a shaft insertion hole with an internal serration formed on its inner circumferential surface, and the output shaft and the drive pulley are connected to rotate integrally by the external serrations of the output shaft meshing with the internal serrations of the shaft insertion hole and the output shaft being inserted into the shaft insertion hole. As a result, the power of the motor is output to the drive pulley via the output shaft, and the endless belt is circulated by the rotation of the drive pulley. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-095762 Summary of the Invention [Problem to be solved by the invention]

[0006] In the vehicle sliding door opening and closing device described in Patent Document 1, when the motor module is assembled to the belt module, the output shaft of the motor module is inserted from above into the shaft insertion hole of the drive pulley. At that time, the rotation shaft of the output shaft of the motor module and the rotation shaft of the drive pulley may be misaligned when viewed from the top-bottom direction, and the circumferential position (phase) of the external serrations of the output shaft of the motor module and the circumferential position (phase) of the internal serrations of the shaft insertion hole are not necessarily in a position where they mesh with each other. However, unless the position of the rotation shaft of the output shaft of the motor module and the position of the rotation shaft of the drive pulley coincide with each other when viewed from the top-bottom direction, and the circumferential position (phase) of the external serrations of the output shaft of the motor module and the circumferential position (phase) of the internal serrations of the shaft insertion hole are in a position where they mesh with each other, the output shaft of the motor module is not inserted into the shaft insertion hole. Therefore, in the vehicle sliding door opening and closing device described in Patent Document 1, when assembling the motor module to the belt module, especially when the working space is limited by the vehicle body panel or the like, it is difficult to insert the output shaft of the motor module into the shaft insertion hole by meshing the external serrations of the output shaft of the motor module with the internal serrations of the shaft insertion hole, leaving room for improvement in workability.

[0007] The present invention provides a vehicle sliding door opening and closing device with improved assembly workability. [Means for solving the problem]

[0008] The present invention relates to A belt guide attached to a vehicle body so that its longitudinal direction extends in a substantially horizontal direction; an endless belt wound around one end and the other end of the belt guide in the longitudinal direction; A belt connector fixed to the endless belt and connected to a sliding door; a belt drive module that outputs power for circulating the endless belt along the longitudinal direction of the belt guide; a belt drive module connection unit that connects the belt guide and the belt drive module and circulates the endless belt by power output from the belt drive module; A vehicle slide door opening and closing device comprising: The belt drive module includes: a rotating electric machine that generates power for circulating the endless belt; an external output shaft that outputs the power of the rotating electric machine to an outside of the belt drive module; The outer circumferential surface of the external output shaft is provided with external tooth serrations, the belt drive module connection unit includes a drive pulley around which the endless belt is wound and a shaft insertion hole through which the external output shaft is inserted is formed in a rotation shaft of the drive pulley; The shaft insertion hole is a meshing portion having an inner peripheral surface that is substantially cylindrical when viewed in a direction of a rotation axis of the drive pulley and that is provided with internal serrations on the inner peripheral surface; a shaft introduction port provided on one end side of the meshing portion in the rotation axis direction, the shaft introduction port having a diameter larger than an outer diameter of the external output shaft, The internal tooth serration is provided from the meshing portion to at least a part of the inner circumferential surface of the shaft introduction port. A vehicle sliding door opening and closing device. Effect of the Invention

[0009] According to the present invention, it becomes easy to mesh the external serrations of the external output shaft with the internal serrations of the meshing portion of the shaft insertion hole, and the external output shaft can be easily inserted into the shaft insertion hole of the drive pulley, thereby improving workability when assembling the belt drive module to the belt drive module connection unit. [Brief description of the drawings]

[0010] [Figure 1]1 is a schematic side view of a vehicle equipped with a vehicle slide door opening and closing device according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a side view of a rear quarter panel and a center rail in the vehicle of FIG. [Diagram 3] 1 is a front perspective view of a vehicle slide door opening and closing device; [Figure 4] 4 is a front perspective view of the vehicle slide door opening and closing device of FIG. 3 with a belt cover removed. FIG. [Diagram 5] FIG. 5 is a rear perspective view of FIG. [Figure 6] 2 is a perspective view of a main portion of a center rail and a center guide roller unit in the vehicle of FIG. 1. [Figure 7] 2 is a rear perspective view of a belt guide and an endless belt of the vehicle slide door opening and closing device; FIG. [Figure 8] 2 is a perspective view of a belt drive module connection unit and an endless belt of the vehicle slide door opening and closing device as viewed from the vehicle interior side. FIG. [Figure 9] 9 is a perspective view of the belt drive module connection unit and the endless belt of FIG. 8 with the top plate removed. FIG. [Figure 10] 9 is a perspective view of the belt drive module connection unit and the bypass pulley of FIG. 8 as viewed from the vehicle exterior side. [Figure 11] 4 is a rear perspective view of a belt connecting device and a center guide roller unit of the vehicle sliding door opening and closing device; FIG. [Figure 12] 12 is a rear perspective view of the second bracket of the belt connector of FIG. 11. FIG. [Figure 13] 2 is a view of the periphery of a vertical bar portion of a belt guide of the vehicle sliding door opening and closing device as viewed from the vehicle exterior side. FIG. [Figure 14] 2 is a perspective view of the periphery of a vertical bar portion of a belt guide of the vehicle slide door opening and closing device, as viewed from above from the inside of the vehicle. FIG. [Figure 15] FIG. 14 is a perspective view of a cross section AA of FIG. 13. [Figure 16] FIG. 2 is a perspective view of a belt drive module of the vehicle sliding door opening and closing device. [Figure 17]FIG. 17 is a perspective view of the belt drive module of FIG. 16 with the casing removed. [Figure 18] 2 is a perspective view of a casing of a belt drive module of the vehicle sliding door opening and closing device. FIG. [Figure 19] 1A and 1B are diagrams showing the engagement between the external output shaft of a belt drive module and the shaft insertion hole of a drive pulley in a vehicle sliding door opening and closing device, where (a) is a cross-sectional view of the main parts as viewed from above, and (b) is a cross-sectional view of the main parts as viewed from the side. [Figure 20] 5A to 5C are diagrams illustrating a flow when an external output shaft of a belt drive module in a vehicle slide door opening and closing device is inserted into a shaft insertion hole of a drive pulley. [Figure 21] 1A and 1B are diagrams illustrating a state in which one tooth of an external serration of an external output shaft of a belt drive module in a vehicle sliding door opening and closing device comes into contact with a guide tooth when the external output shaft is inserted into a shaft insertion hole of a drive pulley, where (a) is a diagram illustrating a case in which an apex of one tooth of the external serration of the external output shaft comes into contact with an apex of the guide tooth, and (b) is a diagram illustrating a case in which an apex of one tooth of the external serration of the external output shaft comes into contact at a position shifted from the apex of the guide tooth. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of a vehicle equipped with a vehicle sliding door opening and closing device of the present invention will be described with reference to the attached drawings. The drawings are to be viewed in the direction of the reference symbols. In this specification and the like, for the sake of simplicity and clarity, the front / rear, left / right, up / down, and inside / outside directions are described according to the direction as seen by the driver of the vehicle, and in the drawings, the front of the vehicle is indicated as Fr, the rear as Rr, the left as L, the right as R, the top as U, and the bottom as D. The left / right direction is also referred to as the vehicle width direction.

[0012] <Vehicle> As shown in Fig. 1, a vehicle sliding door opening and closing device 10 of this embodiment is attached to the left side of a vehicle body 2 constituting a vehicle 1. A sliding door 8 supported so as to be able to slide in the front-rear direction to be opened and closed is disposed on the left side of the vehicle body 2, and the vehicle sliding door opening and closing device 10 opens and closes the sliding door 8 by sliding it in the front-rear direction. In the following description, the outside of the vehicle refers to the left side, and the inside of the vehicle refers to the right side.

[0013] An upper rail 90u is fixed to the left side surface of the vehicle body 2 so as to extend in the front-rear direction above the door opening of the vehicle body 2. A lower rail 90d is fixed to the left side surface of the vehicle body 2 so as to extend in the front-rear direction below the door opening of the vehicle body 2. A center rail 90c is fixed to the left side surface of the vehicle body 2 so as to extend in the front-rear direction behind the door opening. The center rail 90c is fixed to a rear quarter panel 3 constituting the left rear side surface of the vehicle body 2 behind the door opening on the left side surface of the vehicle body 2. A tire house 4 is formed at the lower end of the rear quarter panel 3. A fuel filler port 5 is provided in the rear quarter panel 3 slightly above the tire house 4. The center rail 90c is disposed between the tire house 4 and the fuel filler port 5 in the up-down direction and is fixed to the rear quarter panel 3. The upper rail 90u, the lower rail 90d, and the center rail 90c are all formed of steel. The rear quarter panel 3 is provided with an insertion hole 6 (see FIG. 2) slightly above the position where the center rail 90c is disposed, into which a detouring portion 42 of a belt drive module connecting unit 40, which will be described later, is inserted from the exterior of the vehicle.

[0014] The vehicle slide door opening and closing device 10 is a device that automatically opens and closes a slide door 8 by sliding it in the front-rear direction. The vehicle slide door opening and closing device 10 is attached to a rear quarter panel 3 of a vehicle body 2. When mounted on the vehicle 1, the vehicle exterior side of the vehicle slide door opening and closing device 10 is covered by a finisher 7 that is the same color as the vehicle body 2, and is positioned so as to be substantially invisible from the vehicle exterior.

[0015] An upper guide roller unit 80u is attached to the upper front part of the sliding door 8. A lower guide roller unit 80d is attached to the lower front part of the sliding door 8. A center guide roller unit 80c is attached to the center rear part of the sliding door 8. The upper guide roller unit 80u of the sliding door 8 is attached to the upper rail 90u of the vehicle body 2 so as to be movable in the front-rear direction. The lower guide roller unit 80d of the sliding door 8 is attached to the lower rail 90d of the vehicle body 2 so as to be movable in the front-rear direction. The center guide roller unit 80c of the sliding door 8 is attached to the center rail 90c of the vehicle body 2 so as to be movable in the front-rear direction. The sliding door 8 opens and closes by sliding in the front-rear direction while the upper guide roller unit 80u, the lower guide roller unit 80d, and the center guide roller unit 80c are supported by the upper rail 90u, the lower rail 90d, and the center rail 90c of the vehicle body 2, respectively.

[0016] As shown in Fig. 2 to Fig. 5, the center rail 90c fixed to the rear quarter panel 3 of the vehicle body 2 has a straight portion 91 that extends substantially horizontally in the longitudinal direction and a curved portion 92 that extends forward from the front end of the straight portion 91 while continuously curving toward the vehicle interior side. The center rail 90c is formed of, for example, a steel material. The straight portion 91 and the curved portion 92 of the center rail 90c have a cross-sectional shape that is a deformed C-shape that opens toward the vehicle exterior side when viewed from the extension direction. The upper rail 90u and the lower rail 90d may be of a known structure and are not directly related to the present invention, so detailed description of the upper rail 90u and the lower rail 90d will be omitted in this specification.

[0017] As shown in FIG. 6, the center guide roller unit 80c attached to the center rear of the sliding door 8 includes a base portion 81 fixed to the sliding door 8 with fastening members such as bolts, two front and rear first guide rollers 821 supported on the base portion 81 rotatably around an axis in the vertical direction, and a second guide roller 822 disposed between the two front and rear first guide rollers 821 and supported on the base portion 81 rotatably around an axis in the horizontal direction. The center guide roller unit 80c is supported on the center rail 90c by the two front and rear first guide rollers 821 and the second guide roller 822 being rollably mounted inside the modified C-shape of the center rail 90c. The center guide roller unit 80c is slidable on the straight portion 91 and the curved portion 92 of the center rail 90c while the two front and rear first guide rollers 821 and the second guide roller 822 roll inside the modified C-shape of the center rail 90c.

[0018] Next, the vehicle slide door opening and closing device 10 will be described in detail with reference to FIGS. 4, 5, 7 to 10, and 13 to 21. FIG.

[0019] <Vehicle sliding door opening and closing device> As shown in FIGS. 4 and 5, the vehicle slide door opening and closing device 10 includes a belt module 20 and a belt drive module 70 that circulates an endless belt 50 of the belt module 20, which will be described later.

[0020] The belt module 20 is disposed on the upper part of the center rail 90c (see Figs. 3 and 4). The belt module 20 includes a belt guide 30 attached to the vehicle body so that its longitudinal direction extends substantially horizontally along the center rail 90c, a belt drive module connection unit 40 to which a belt drive module 70 (described later) is attached, an endless belt 50 that is looped around a front end 30a and a rear end 30b in the longitudinal direction of the belt guide 30 and moves in a circulating manner in the longitudinal direction of the belt guide 30 through the belt drive module connection unit 40, and a belt connector 60 that is fixed to the endless belt 50 and connected to the sliding door 8.

[0021] Furthermore, the belt module 20 includes a belt cover 21 that covers the belt guide 30 and the endless belt 50 on the vehicle outer side.

[0022] The belt drive module 70 circulates the endless belt 50 along the longitudinal direction of the belt guide 30. The belt drive module 70 is assembled to the belt drive module connection unit 40 of the belt module 20.

[0023] Before being attached to the rear quarter panel 3 of the vehicle body 2, the vehicle sliding door opening and closing device 10 is divided into two modules, a belt module 20 and a belt drive module 70. When attaching the vehicle sliding door opening and closing device 10 to the rear quarter panel 3 of the vehicle body 2, the belt module 20 is attached to the rear quarter panel 3 from the outside of the vehicle, and then the belt drive module 70 is assembled to the belt drive module connection unit 40 of the belt module 20 from the inside of the rear quarter panel 3.

[0024] (Belt module) First, the belt guide 30, the belt drive module connecting unit 40, the endless belt 50, and the belt connector 60 that constitute the belt module 20 will be described.

[0025] As shown in Figures 4, 5, and 7, the belt guide 30 has a straight guide portion 301 that extends approximately horizontally in the fore-and-aft direction along the straight portion 91 of the center rail 90c at an upper portion of the straight portion 91 of the center rail 90c, and a curved guide portion 302 that extends continuously from the front end of the straight guide portion 301 approximately horizontally forward while curving toward the inside of the vehicle along the curved portion 92 of the center rail 90c at an upper portion of the curved portion 92 of the center rail 90c.

[0026] The belt guide 30 has a guide wall portion 311 (see FIG. 13) provided on the straight guide portion 301 and the curved guide portion 302 from the front end portion 30a to the rear end portion 30b, a bottom wall portion 312, an outer side upper wall portion 313, an inner side upper wall portion 314, and a plurality of vertical bar portions 315. The guide wall portion 311 extends in the up-down direction from the front end portion 30a to the rear end portion 30b of the belt guide 30. The bottom wall portion 312 extends in parallel with the guide wall portion 311 from the front end portion 30a to the rear end portion 30b of the belt guide 30, on the inner side and below the guide wall portion 311. The outer side upper wall portion 313 extends from an upper end portion 311u of the guide wall portion 311 toward the outer side of the vehicle. The inner side upper wall portion 314 extends from a lower end portion 311d of the guide wall portion 311 toward the inner side of the vehicle. A plurality of vertical bar portions 315 are provided along the longitudinal direction of the belt guide 30. Each vertical bar portion 315 rises upward from the outer end of the bottom wall portion 312, extends in the vertical direction, and connects to the lower end of the guide wall portion 311. Details of the vertical bar portions 315 will be described later.

[0027] A front reversing pulley 321 is supported at the front end 30a of the belt guide 30. The front reversing pulley 321 is supported by the belt guide 30 so as to be rotatable with its rotation axis facing up and down. The front reversing pulley 321 reverses the moving direction of the endless belt 50 in the longitudinal direction of the belt guide 30 at the front end 30a of the belt guide 30 by having the endless belt 50 wound around it. A front bracket 300a is connected to the front end 30a of the belt guide 30. The front bracket 300a is connected to the belt guide 30 so as to be rotatable around the rotation axis of the front reversing pulley 321, and is fixed to the vehicle body 2 by a fastening member such as a bolt.

[0028] A rear reversing pulley 322 is supported at a rear end 30b of the belt guide 30. The rear reversing pulley 322 is supported by the belt guide 30 so as to be rotatable with its rotation axis facing up and down. The rear reversing pulley 322 reverses the moving direction of the endless belt 50 in the longitudinal direction of the belt guide 30 at the rear end 30b of the belt guide 30 by having the endless belt 50 wound around it. A rear bracket 300b is connected to the rear end 30b of the belt guide 30. The rear bracket 300b is connected to the belt guide 30 so as to be rotatable around the rotation axis of the rear reversing pulley 322, and is fixed to the vehicle body 2 by a fastening member such as a bolt.

[0029] A plurality of tension pulleys 33 that apply a predetermined tension to the endless belt 50 are supported on the belt guide 30. In this embodiment, the tension pulleys 33 include a tension pulley 331 disposed substantially in the center of the straight guide portion 301 in the front-rear direction, a tension pulley 332 disposed near the rear end of the curved guide portion 302 of the belt guide 30, and a tension pulley 333 disposed between the tension pulley 332 and the front reversing pulley 321 in the longitudinal direction of the belt guide 30. All of the tension pulleys 331, 332, and 333 are supported on the belt guide 30 on the vehicle inner side relative to the guide wall portion 311 and rotatably with their rotation axes oriented substantially in the vertical direction.

[0030] An upper wall side protruding support portion 314a is provided on the vehicle interior side upper wall portion 314 of the belt guide 30, which protrudes toward the vehicle interior side and covers the upper surface of the tension pulley 331. A bottom wall side protruding support portion 312a is provided on the bottom wall portion 312 of the belt guide 30, which protrudes toward the vehicle interior side and covers the lower surface of the tension pulley 331. The tension pulley 331 has an upper end portion supported by the belt guide 30 at the upper wall side protruding support portion 314a of the vehicle interior upper wall portion 314, and a lower end portion supported by the belt guide 30 at the bottom wall side protruding support portion 312a of the bottom wall portion 312.

[0031] The vehicle interior upper wall portion 314 of the belt guide 30 is provided with an upper wall side protruding support portion 314b that protrudes toward the vehicle interior and covers the upper surface of the tension pulley 332 and the upper surface of the tension pulley 333. The bottom wall portion 312 of the belt guide 30 is provided with a bottom wall side protruding support portion 312b that protrudes toward the vehicle interior and covers the lower surface of the tension pulley 332 and the lower surface of the tension pulley 333. The upper wall side protruding support portion 314b curves and extends toward the vehicle interior along the longitudinal direction of the belt guide 30 from the upper surface of the tension pulley 332 to the upper surface of the tension pulley 333. The bottom wall side protruding support portion 312b curves and extends toward the vehicle interior along the longitudinal direction of the belt guide 30 from the lower surface of the tension pulley 332 to the lower surface of the tension pulley 333. The tension pulleys 332 and 333 have their upper ends supported by the belt guide 30 at the upper wall side protruding support portion 314b of the vehicle interior upper wall portion 314, and their lower ends supported by the belt guide 30 at the bottom wall side protruding support portion 312b of the bottom wall portion 312.

[0032] The belt guide 30 supports a detouring pulley 34 that applies a predetermined tension to detouring the endless belt 50 toward the vehicle interior. The detouring pulley 34 is a pair of front and rear detouring pulleys 34, including a front detouring pulley 341 and a rear detouring pulley 342. The pair of front and rear detouring pulleys 34 (the front detouring pulley 341 and the rear detouring pulley 342) are disposed in the longitudinal direction of the belt guide 30, between the tension pulleys 331 and 332, near the front end of the linear guide section 301. Of the pair of front and rear detouring pulleys 34, the front detouring pulley 341 and the rear detouring pulley 342 are both supported by the belt guide 30 so as to be rotatable with their rotation axes oriented in the vertical direction.

[0033] The vehicle interior upper wall portion 314 of the belt guide 30 is provided with an upper wall side protruding support portion 314c that protrudes toward the vehicle interior and covers upper surfaces of the pair of front and rear detouring pulleys 34. The bottom wall portion 312 of the belt guide 30 is provided with a bottom wall side protruding support portion 312c that protrudes toward the vehicle interior and covers lower surfaces of the pair of front and rear detouring pulleys 34. The pair of front and rear detouring pulleys 34 have upper ends supported by the belt guide 30 at the upper wall side protruding support portion 314c of the vehicle interior upper wall portion 314, and have lower ends supported by the belt guide 30 at the bottom wall side protruding support portion 312c of the bottom wall portion 312.

[0034] As shown in Figures 8 to 10, the belt drive module connection unit 40 has an assembly seat 41 fixed to the belt guide 30 so as to cover the insertion hole 6 of the rear quarter panel 3 from the outside of the vehicle, and a detour portion 42 that is provided so as to protrude from the lower part of the assembly seat 41 toward the inside of the vehicle and through which a part of the endless belt 50 detours from the detour pulley 34 provided on the belt guide 30 to the inside of the vehicle and passes through the inside.

[0035] The mounting seat 41 is in the form of a plate that closes the insertion hole 6 (see FIG. 2) of the rear quarter panel 3, and in this embodiment, is in the form of a substantially trapezoidal plate.

[0036] The assembly seat 41 has a first bolt insertion hole 411a, a second bolt insertion hole 411b, and a rectangular hole 413. The first bolt insertion hole 411a is a pair of holes provided at the front lower corner and the rear lower corner of the assembly seat 41 in the vehicle width direction, as viewed from the vehicle width direction, penetrating in the vehicle width direction. The second bolt insertion hole 411b is a pair of holes provided at the front upper corner and the rear upper corner of the assembly seat 41 in the vehicle width direction, penetrating in the vehicle width direction. The rectangular hole 413 is a hole penetrating in the vehicle width direction. In this embodiment, the rectangular hole 413 is a rectangular hole that is longer in the front-rear direction than in the up-down direction, as viewed from the vehicle width direction, and is formed in a region lower than the center in the up-down direction of the assembly seat 41.

[0037] The detouring portion 42 includes a detouring portion case 421 through which the endless belt 50, which has been detouring from the belt guide 30 to the vehicle interior side, passes. The detouring portion case 421 has an abutting seat portion 421a extending along the vehicle exterior surface of the assembly seat 41 and abutting against the vehicle exterior surface of the assembly seat 41, and a thin box-shaped accommodating portion 421b protruding toward the vehicle interior side of the assembly seat 41 and having an open top surface and a vehicle exterior side surface. The detouring portion case 421 of the detouring portion 42 is formed of resin, and the abutting seat portion 421a and the accommodating portion 421b are molded integrally. The accommodating portion 421b protrudes toward the vehicle interior side of the assembly seat 41 from the abutting seat portion 421a through the rectangular hole 413 of the assembly seat 41 and the insertion hole 6 of the rear quarter panel 3.

[0038] The detouring section 42 further includes a top plate 422 that covers the opening portion of the upper surface of the accommodating section 421b.

[0039] The abutment seat portion 421a of the detouring portion case 421 is provided with a pair of front and rear first bolt insertion holes 421c penetrating in the vehicle width direction, and a pair of front and rear second bolt insertion holes 421d penetrating in the vehicle width direction. The pair of front and rear first bolt insertion holes 421c are provided at positions overlapping the pair of front and rear first bolt insertion holes 411a provided in the assembly seat 41. The pair of front and rear second bolt insertion holes 421d are provided at positions overlapping the pair of front and rear second bolt insertion holes 411b provided in the assembly seat 41. A female thread cylinder 423c is fitted into the inner circumferential surface of the pair of front and rear first bolt insertion holes 421c.

[0040] A pair of front and rear second bolt insertion holes 421d provided in the abutment seat portion 421a of the detouring part case 421 is inserted with a bolt (not shown) from the vehicle exterior side. The bolt inserted into the second bolt insertion hole 421d is inserted through a second bolt insertion hole 411b provided in the assembly seat 41 and an insertion hole (not shown) provided in the rear quarter panel 3, and is screwed into a nut (not shown) provided on the vehicle interior side of the rear quarter panel 3. Then, the abutment seat portion 421a of the detouring part case 421 and the assembly seat 41 are fastened together to the rear quarter panel 3 by the bolt and the nut. As a result, the assembly seat 41 of the belt drive module connection unit 40 and the detouring part case 421 are fixed to the rear quarter panel 3 of the vehicle body 2.

[0041] A protruding portion 421e protruding toward the vehicle interior is formed at the end of the accommodation portion 421b of the detouring portion case 421 on the vehicle interior side. A third bolt insertion hole 421f penetrating in the vertical direction is provided in the protruding portion 421e. A female thread cylinder 423f is fitted into the inner peripheral surface of the third bolt insertion hole 421f.

[0042] The drive pulley 43 is accommodated in the space surrounded by the accommodation portion 421b of the detour portion 42 and the top plate 422. Furthermore, the pair of front and rear detour pulleys 34 supported by the belt guide 30 described above are also accommodated in the space surrounded by the accommodation portion 421b of the detour portion 42 and the top plate 422.

[0043] A pair of front and rear bypass pulleys 34 supported by the belt guide 30 are positioned at the front and rear of the opening of the exterior side of the accommodating section 421b, with portions of them protruding outside the vehicle from the opening of the exterior side of the accommodating section 421b when viewed from the top-bottom direction.

[0044] The drive pulley 43 is disposed on the vehicle inner side of the pair of front and rear bypass pulleys 34 in the vehicle width direction, and between the front bypass pulley 341 and the rear bypass pulley 342 in the front-rear direction, as viewed from the up-down direction. The drive pulley 43 is rotatably supported by the bottom surface of the accommodation portion 421b and the top plate 422 with the rotation axis oriented in the up-down direction. In this embodiment, the drive pulley 43 is disposed such that the rotation axis of the drive pulley 43 is located between the rotation axes of the pair of front and rear bypass pulleys 34 in the front-rear direction. The drive pulley 43 has a shaft insertion hole 431 extending in the up-down direction. The shaft insertion hole 431 is provided in the rotation axis of the drive pulley 43.

[0045] The drive pulley 43 is rotationally driven by the power of a rotating electric machine 71 (described later) of the belt drive module 70 .

[0046] The top plate 422 exposes the shaft insertion hole 431 of the drive pulley 43, covers the upper side of the accommodating portion 421b other than the shaft insertion hole 431 of the drive pulley 43, and is fixed to the detouring portion case 421 with bolts.

[0047] The endless belt 50 is an annular toothed belt having a plurality of teeth 51 formed on its inner surface along the operating direction of the endless belt 50. The teeth 51 formed on the inner surface of the endless belt 50 are formed by arranging peaks 51a and valleys 51b, which extend in a direction perpendicular to the operating direction of the endless belt 50 (vertical direction in this embodiment), alternately along the operating direction of the endless belt 50. Therefore, each of the teeth 51 formed on the inner surface of the endless belt 50 extends in a direction perpendicular to the operating direction of the endless belt 50 (vertical direction in this embodiment) (see FIG. 13).

[0048] The endless belt 50 is wound around the front reversing pulley 321 and the rear reversing pulley 322, and circulates along the longitudinal direction of the belt guide 30 so as to surround the guide wall portion 311 of the belt guide 30 when viewed from the top-bottom direction. When viewed from the top-bottom direction, the endless belt 50 passing on the vehicle outer side of the guide wall portion 311 of the belt guide 30 extends between the guide wall portion 311 of the belt guide 30 and the belt cover 21. As a result, the vehicle outer side of the endless belt 50 is covered by the belt cover 21, and the endless belt 50 is prevented from coming into contact with foreign objects.

[0049] The endless belt 50 is looped around the tension pulley 33 and the pair of front and rear bypass pulleys 34 on the outer side of the vehicle. The endless belt 50 is looped around the pair of front and rear bypass pulleys 34 to the inner side of the vehicle, and is looped around the drive pulley 43 of the belt drive module connection unit 40.

[0050] The endless belt 50 is given a predetermined tension by the tension pulley 33, and is wound around the belt guide 30 in the longitudinal direction while being prevented from slackening toward the vehicle interior. The endless belt 50 is detoured toward the vehicle interior while being given a predetermined tension by a pair of front and rear detour pulleys 34, and is wound around the drive pulley 43 of the belt drive module connection unit 40.

[0051] The endless belt 50 moves in a circular motion along the longitudinal direction of the belt guide 30, surrounding the guide wall portion 311 of the belt guide 30 when viewed from above and below, as the drive pulley 43 is rotated by the power of a rotating electric motor 71 (described later) of the belt drive module 70.

[0052] 11 and 12, the belt connector 60 connects the endless belt 50 and the center guide roller unit 80c of the sliding door 8. An upper part of the belt connector 60 is fixed to a part of the endless belt 50 that moves on the outer side of the vehicle. A lower part of the belt connector 60 is connected to a base part 81 of the center guide roller unit 80c of the sliding door 8.

[0053] The belt connecting device 60 has a first bracket 61 on the vehicle outer side and a second bracket 62 on the vehicle inner side, which sandwich the endless belt 50 in the vehicle width direction.

[0054] The first bracket 61 has a clamping portion 611 facing the outer surface of the endless belt 50, a downward extending portion 612 extending downward from the clamping portion 611, and an exterior extending portion 613 bending from a lower end of the downward extending portion 612 toward the exterior of the vehicle and extending toward the exterior of the vehicle. The downward extending portion 612 is provided with a pair of front and rear insertion holes 612a penetrating in the vehicle width direction. The exterior extending portion 613 is provided with a pair of front and rear bolt insertion holes 613a penetrating in the up-down direction. The base portion 81 of the center guide roller unit 80c of the sliding door 8 is fixed to the first bracket 61 by a fastening bolt inserted through the bolt insertion hole 613a.

[0055] The second bracket 62 has an engagement portion 621 facing the inner surface of the endless belt 50, a downward extension portion 622 extending downward from the engagement portion 621, and an interior extension portion 623 bending from a lower end of the downward extension portion 622 toward the interior of the vehicle and extending toward the interior of the vehicle. The engagement portion 621 has a tooth portion 621a formed on a surface facing the inner surface of the endless belt 50. The downward extension portion 622 has a pair of front and rear insertion holes 622a penetrating in the vehicle width direction at positions overlapping with the insertion holes 612a of the first bracket 61. The interior extension portion 623 abuts against the base portion 81 of the center guide roller unit 80c of the sliding door 8 from above.

[0056] The belt connector 60 has teeth 621a provided on the meshing portion 621 of the second bracket 62 meshed with teeth 51 formed on the inner surface of the endless belt 50, and sandwiches the endless belt 50 between the clamping portion 611 of the first bracket 61 and the meshing portion 621 of the second bracket 62. The first bracket 61 and the second bracket 62 have a downward extension portion 612 of the first bracket 61 and a downward extension portion 622 of the second bracket 62 facing each other, and are fastened together by a fastening member such as a rivet that passes through the insertion hole 612a of the first bracket 61 and the insertion hole 622a of the second bracket 62. As a result, the belt connector 60 is firmly fixed to the endless belt 50.

[0057] In this way, the endless belt 50 and the sliding door 8 are connected to each other via the belt connector 60 and the center guide roller unit 80c. As a result, when the endless belt 50 moves in a circulating manner clockwise as viewed from above, the belt connector 60 fixed to the endless belt 50 moves forward, so that the sliding door 8 connected to the endless belt 50 via the belt connector 60 and the center guide roller unit 80c moves forward, i.e., in the closing direction. Furthermore, when the endless belt 50 moves in a circulating manner counterclockwise as viewed from above, the belt connector 60 fixed to the endless belt 50 moves backward, so that the sliding door 8 connected to the endless belt 50 via the belt connector 60 and the center guide roller unit 80c moves backward, i.e., in the opening direction.

[0058] (Belt guide vertical bar and lightening hole) As shown in Figures 13 and 14, as described above, the belt guide 30 has a bottom wall portion 312 that covers the underside of at least a portion of the endless belt 50, and a plurality of vertical bar portions 315 provided along the longitudinal direction of the belt guide 30.

[0059] Each vertical bar portion 315 rises upward from the outer side end of the bottom wall portion 312, extends in the vertical direction so as to intersect with the endless belt 50 when viewed from a horizontal direction perpendicular to both the longitudinal direction and the vertical direction of the belt guide 30, and is connected to the lower end of the guide wall portion 311.

[0060] The belt guide 30 has a lightening hole 35 formed between adjacent vertical bar portions 315 in the longitudinal direction of the belt guide 30. A plurality of lightening holes 35 are provided along the longitudinal direction of the belt guide 30.

[0061] In this embodiment, between the tension pulley 331 and the rear detouring pulley 342, three vertical beam portions 315 are provided.

[0062] The lightening holes 35 include two first lightening holes 351 formed between two adjacent vertical bar portions 315 in the longitudinal direction of the belt guide 30, a second lightening hole 352 formed in the front part of the foremost vertical bar portion 315, and a third lightening hole 353 formed in the rear part of the rearmost vertical bar portion 315.

[0063] The first lightening hole 351, the second lightening hole 352, and the third lightening hole 353, which are provided along the longitudinal direction of the belt guide 30, are all formed at a position spanning the lower part of the guide wall portion 311 and the bottom wall portion 312, and penetrate the lower part of the guide wall portion 311 in the vehicle width direction and also penetrate the outer side end part of the bottom wall portion 312 in the vertical direction.

[0064] In the vertical bar portion 315, a front end face 315a on the front side in the longitudinal direction of the belt guide 30 and a rear end face 315b on the rear side in the longitudinal direction of the belt guide 30 extend in the vertical direction at a predetermined angle with respect to a direction perpendicular to the operating direction of the endless belt 50 (the vertical direction in this embodiment) when viewed from a lateral direction perpendicular to both the longitudinal direction and the vertical direction of the belt guide 30.

[0065] In this way, each tooth portion 51 formed on the inner surface of the endless belt 50 extends in a direction perpendicular to the operating direction of the endless belt 50 (vertical direction in this embodiment), whereas the front end surface 315a and the rear end surface 315b of the vertical bar portion 315 extend in the vertical direction at a predetermined angle inclined with respect to the direction perpendicular to the operating direction of the endless belt 50 (vertical direction in this embodiment). As a result, even if the endless belt 50 comes into contact with the vertical bar portion 315 when it operates, the tooth portion 51 formed on the inner surface of the endless belt 50 can be prevented from being caught by the vertical bar portion 315. Therefore, stable operation can be ensured even if the deflection of the endless belt 50 is reduced, so that the length of the endless belt 50 can be shortened with a simple structure without increasing the number of parts. Furthermore, by shortening the length of the endless belt 50, it is also easy to ensure a clearance between the endless belt 50 and the belt cover 21, and the endless belt 50 can be prevented from contacting the belt cover 21. This allows stable belt operation in the vehicle sliding door opening and closing device 10 without increasing the number of parts.

[0066] Further, the front end face 315a and the rear end face 315b of the vertical bar portion 315 are symmetrical in the longitudinal direction of the belt guide 30 with respect to the center line CL of the vertical bar portion 315 in the longitudinal direction of the belt guide 30 as an axis when viewed from the lateral direction.

[0067] This prevents the teeth 51 formed on the inner surface of the endless belt 50 from getting caught on the vertical bar portion 315 regardless of whether the endless belt 50 operates to one side or the other side in the operating direction.

[0068] Further, the front end face 315a and the rear end face 315b of the vertical bar portion 315 are inclined such that the width of the vertical bar portion 315 in the longitudinal direction of the belt guide 30 becomes narrower toward the bottom when viewed from the lateral direction.

[0069] Furthermore, the front end face 315a and the rear end face 315b of the vertical bar portion 315 extend in the vertical direction at an incline with respect to a direction perpendicular to the operating direction of the endless belt 50 (the vertical direction in this embodiment) so as to overlap at least a portion of two or more ridge portions 51a that form the tooth portion 51 of the endless belt 50 when viewed from the lateral direction.

[0070] As a result, even if the endless belt 50 comes into contact with the vertical bar portion 315 when it is operating, the two peak portions 51a will come into contact with the vertical bar portion 315, and the vertical bar portion 315 will not penetrate into the bottom of the teeth portion 51 formed by the valley portion 51b between the two peak portions 51a, so that it is possible to more reliably prevent the teeth portion 51 formed on the inner surface of the endless belt 50 from getting caught on the vertical bar portion 315.

[0071] Furthermore, when viewed from the lateral direction, the angle θ1 formed between the front end face 315a and the rear end face 315b of the vertical beam portion 315 is equal to or smaller than 90 degrees.

[0072] This makes it possible to reduce the area where the vertical bar portion 315 overlaps with the endless belt 50 when viewed from the lateral direction. Therefore, the contact area of ​​the endless belt 50 with the vertical bar portion 315 when the endless belt 50 comes into contact with the vertical bar portion 315 can be reduced, making it possible to prevent the endless belt 50 and the vertical bar portion 315 from being fixed together due to freezing. In addition, since the vertical bar portion 315 can be made smaller, the vehicle sliding door opening and closing device 10 can be made lighter in weight.

[0073] Since the belt guide 30 has a bottom wall portion 312 that covers the lower portion of the portion of the endless belt 50 that moves inside the vehicle, even if the endless belt 50 bends downward, the endless belt 50 does not come into contact with the center rail 90c because it is supported by contacting the bottom wall portion 312 of the belt guide 30. As a result, even if the endless belt 50 bends downward, it is possible to protect the endless belt 50 without having to provide a large space in the vertical direction below the belt guide 30.

[0074] On the other hand, water such as rainwater is likely to accumulate on the upper surface of the bottom wall portion 312 of the belt guide 30. In this embodiment, since the bottom wall portion 312 of the belt guide 30 is provided with the lightening holes 35, water such as rainwater adhering to the belt guide 30 and the endless belt 50 is discharged downward from the lightening holes 35.

[0075] In this way, the vehicle slide door opening and closing device 10 of this embodiment can protect the endless belt 50 even if the endless belt 50 is bent downward without the need to provide a large space in the vertical direction below the belt guide 30, and can prevent water such as rainwater from accumulating in the belt guide 30 with a simple configuration. Furthermore, since the lightening holes 35 can be made large, water such as rainwater can be more effectively prevented from accumulating in the belt guide 30, and the belt guide 30 can be made lighter.

[0076] In addition, the first lightening hole 351, the second lightening hole 352, and the third lightening hole 353 are all formed at a position spanning the lower part of the guide wall portion 311 and the bottom wall portion 312, and penetrate the lower part of the guide wall portion 311 in the vehicle width direction and the vehicle outer end part of the bottom wall portion 312 in the vertical direction. Therefore, water such as rainwater that accumulates in the bottom wall portion 312 of the belt guide 30 is discharged downward from the first lightening hole 351, the second lightening hole 352, and the third lightening hole 353, and water such as rainwater that adheres to the guide wall portion 311 of the belt guide 30 also flows down along the guide wall portion 311 by gravity and is discharged downward from the first lightening hole 351, the second lightening hole 352, and the third lightening hole 353 without flowing around the bottom wall portion 312. This allows water such as rainwater adhering to the guide wall portion 311 of the belt guide 30 to be discharged through the lightening hole 35 more easily.

[0077] Furthermore, since the bottom wall portion 312 of the belt guide 30 extends toward the vehicle interior side of the guide wall portion 311, the first lightening hole 351, the second lightening hole 352, and the third lightening hole 353 all open downward and toward the vehicle exterior side with respect to the bottom wall portion 312. Therefore, water such as rainwater adhering to the belt guide 30 and the endless belt 50 is discharged downward and toward the vehicle exterior side from the first lightening hole 351, the second lightening hole 352, and the third lightening hole 353. This makes it possible to prevent water such as rainwater from accumulating between the belt guide 30 and the rear quarter panel 3 of the vehicle body 2.

[0078] Furthermore, the front end face 315a and the rear end face 315b of the vertical bar portion 315 are inclined so that the width of the vertical bar portion 315 in the longitudinal direction of the belt guide 30 decreases toward the bottom when viewed horizontally. This increases the downward opening area of ​​the first lightening hole 351 in the bottom wall portion 312, thereby further preventing water such as rainwater from accumulating in the bottom wall portion 312 of the belt guide 30.

[0079] A rib 361 protruding upward from the bottom wall portion 312 is formed between adjacent first lightening holes 351 in the longitudinal direction of the belt guide 30. The rib 361 extends from a connection portion of the bottom wall portion 312 with the lower end portion of the vertical bar portion 315 to the end portion of the bottom wall portion 312 on the vehicle interior side.

[0080] As a result, when the endless belt 50 is bent downward, the endless belt 50 is supported by contacting the rib 361. Therefore, even if the endless belt 50 is bent downward, the endless belt 50 does not contact the center rail 90c. Furthermore, in this embodiment, among the adjacent pulleys, the interval between the rear detour pulley 342 and the tension pulley 331 is the widest, and the endless belt 50 is most likely to bend downward. The rib 361 is provided on the straight guide portion 301 of the belt guide 30, and is provided between the rear detour pulley 342 and the tension pulley 331. As a result, the rib 361 is disposed at the portion where the endless belt 50 is most likely to bend downward, and the endless belt 50 can be more reliably prevented from contacting the center rail 90c.

[0081] Furthermore, as described above, the rib 361 protrudes upward from the bottom wall portion 312 of the belt guide 30. The front end portion 361a of the rib 361 is curved downward in a convex shape toward the first lightening hole 351 adjacent to the front side of the rib 361. The rear end portion 361b of the rib 361 is curved downward in a convex shape toward the first lightening hole 351 adjacent to the rear side of the rib 361.

[0082] As a result, the rib 361 can suppress a decrease in the rigidity of the straight guide portion 301 of the belt guide 30 while allowing water such as rainwater adhering to the belt guide 30 and the endless belt 50 to be discharged downward from the first lightening hole 351. Furthermore, water such as rainwater adhering to the rib 361 flows from the front end portion 361a and the rear end portion 361b that are curved downwardly convexly toward the first lightening hole 351 toward the first lightening hole 351 and is discharged from the first lightening hole 351, so that water such as rainwater adhering to the rib 361 can be more reliably discharged from the first lightening hole 351. In this way, it is possible to more reliably prevent water such as rainwater from accumulating on the bottom wall portion 312 while suppressing a decrease in the rigidity of the straight guide portion 301 of the belt guide 30. Specifically, since the front end 361a and the rear end 361b are curved convexly downward toward the first lightening hole 351, water such as rainwater adhering to the rib 361 is spread in the front-to-rear direction by surface tension and is easily guided to the first lightening hole 351.

[0083] A front end surface 315a and a rear end surface 315b of the vertical bar portion 315 are both curved in a convex shape with respect to the operating direction of the endless belt 50 when viewed in the up-down direction.

[0084] As a result, even if the endless belt 50 comes into contact with the vertical bar portion 315 when it is in operation, the teeth 51 formed on the inner surface of the endless belt 50 can be prevented from getting caught on the front end face 315a and rear end face 315b of the vertical bar portion 315.

[0085] (Belt drive module) Next, the belt drive module 70 will be described with reference to FIGS.

[0086] As shown in Figures 16 to 18, the belt drive module 70 has a rotating motor 71 that outputs power to cause the endless belt 50 to move in a circulating manner, a reducer 72 that reduces the rotational speed of the power of the rotating motor 71 and outputs it, and a casing 73 that houses the rotating motor 71 and the reducer 72.

[0087] The rotating electric machine 71 is fixed to a casing 73. The rotating electric machine 71 has a rotor and a stator, which are not shown.

[0088] A rotating electric machine output shaft 711 is attached to the rotating electric machine 71, protruding downward from the rotating electric machine 71 and rotating integrally with the rotor described above. The outer circumferential surface of the portion of the rotating electric machine output shaft 711 protruding downward from the rotating electric machine 71 is shaped like an external gear. A power line (not shown) is connected to the rotating electric machine 71, and the rotor of the rotating electric machine 71 and the rotating electric machine output shaft 711 rotate integrally by power supplied from the power line.

[0089] The reducer 72 includes a first gear 72a and a second gear 72b. The first gear 72a and the second gear 72b are both supported by a casing 73 so as to be rotatable with their rotation axes oriented in the vertical direction.

[0090] The first gear 72a includes a large diameter gear 721 which is an external gear, and a small diameter gear 722 which protrudes downward from the lower surface of the large diameter gear 721, is an external gear coaxial with the large diameter gear 721, and has a smaller diameter than the large diameter gear 721. The large diameter gear 721 meshes with an external gear-shaped rotating electric machine output shaft 711 of the rotating electric machine 71.

[0091] The second gear 72b includes a large diameter gear 723, which is an external gear having a larger diameter than the small diameter gear 722 of the first gear 72a, and an external output shaft 724 that protrudes downward from the lower surface of the large diameter gear 723 and extends along the rotation axis of the large diameter gear 723.

[0092] The large diameter gear 723 meshes with the small diameter gear 722 of the first gear 72a.

[0093] The external output shaft 724 outputs the power of the rotating electric machine 71 to the outside of the belt drive module 70. The external output shaft 724 is provided with an external tooth serration 724a on its outer circumferential surface. A tapered portion 724c is formed at a tip end 724b of the external output shaft 724. A protruding portion 724d protruding from the tip end 724b in the axial direction of the external output shaft 724 is provided at the tip end 724b of the external output shaft 724.

[0094] The casing 73 is disposed on the vehicle interior side of the mounting seat 41 of the belt drive module connecting unit 40. The casing 73 includes an upper casing 73u and a lower casing 73d attached to the lower part of the upper casing 73u. The upper casing 73u supports and houses the rotating electric machine 71, and rotatably supports the upper end of the first gear 72a and the upper end of the second gear 72b. The lower casing 73d houses the rotating electric machine output shaft 711 protruding downward from the rotating electric machine 71, the first gear 72a, and the large diameter gear 723 of the second gear 72b, and rotatably supports the lower end of the first gear 72a. The lower part of the external output shaft 724 protrudes downward from the lower casing 73d and is exposed to the outside downward from the casing 73.

[0095] A plurality of female threaded holes are provided on the underside of the upper casing 73u, and a plurality of bolt insertion holes are provided in the lower casing 73d. The upper casing 73u is fixed to the lower casing 73d by inserting bolts through the bolt insertion holes of the lower casing 73d from below the lower casing 73d and fastening them to the female threaded holes of the upper casing 73u.

[0096] The lower casing 73d is formed with a first leg portion 731 protruding toward the vehicle interior side and a pair of front and rear second leg portions 732 protruding downward. The first leg portion 731 is disposed at a position facing the upper surface of the protruding portion 421e of the detouring portion case 421. The first leg portion 731 is provided with a first notch groove 731a that opens toward the vehicle interior side. The first notch groove 731a is provided at a position overlapping with the third bolt insertion hole 421f provided in the protruding portion 421e of the detouring portion case 421. The pair of front and rear second leg portions 732 are disposed at a position facing the assembly seat 41. The pair of front and rear second leg portions 732 are each provided with a second notch groove 732a. The second notch groove 732a provided in the front second leg portion 732 opens toward the rear, and the second notch groove 732a provided in the front second leg portion 732 opens toward the front. The second cutout grooves 732a provided in the pair of front and rear second leg portions 732 are respectively provided at positions overlapping with the pair of front and rear first bolt insertion holes 411a provided in the assembly seat 41 and the pair of front and rear first bolt insertion holes 421c provided in the abutment seat portion 421a of the bypass portion case 421.

[0097] A first annular vibration isolating member 741 is fitted into a first cutout groove 731a provided in the first leg portion 731. A second annular vibration isolating member 742 is fitted into each of second cutout grooves 732a provided in the pair of front and rear second leg portions 732.

[0098] The first leg 731, with the first vibration isolation member 741 fitted into the first cutout groove 731a, is fixed to the upper surface of the detour case 421 via the first vibration isolation member 741 by the first bolt 751 being inserted from above through the inside of the ring of the first vibration isolation member 741 and screwed into the female threaded tube 423f fitted into the third bolt insertion hole 421f of the detour case 421.

[0099] A second bolt 752 is inserted from diagonally above the vehicle interior into the annular interior of the second vibration isolation member 742 fitted into the second cutout groove 732a. The second bolt 752 is inserted through the annular interior of the second vibration isolation member 742, an insertion hole (not shown) provided in the rear quarter panel 3, and the first bolt insertion hole 411a of the assembly seat 41, and is screwed into a female thread tube 423c (see FIG. 9) fitted into a first bolt insertion hole 421c provided in the abutment seat portion 421a of the detour portion case 421. The second leg portion 732, the second vibration isolation member 742, the assembly seat 41, the rear quarter panel 3, and the abutment seat portion 421a of the detour portion case 421 are then fastened together by the second bolt 752. As a result, the casing 73 of the belt drive module 70 is fixed to the assembly seat 41 and the detour case 421 of the belt drive module connecting unit 40, and the assembly seat 41 and the detour case 421 of the belt drive module connecting unit 40 and the casing 73 of the belt drive module 70 are fixed to the rear quarter panel 3 of the vehicle body 2.

[0100] In this manner, the casing 73 of the belt drive module 70 is fixed to the assembly seat 41 and the detour section case 421 of the belt drive module connecting unit 40 via the first vibration isolation member 741 and the second vibration isolation member 742. Therefore, the casing 73 of the belt drive module 70 is fixed without being in direct contact with the assembly seat 41 and the detour section case 421 of the belt drive module connecting unit 40. This makes it possible to prevent vibrations and the like generated in the belt drive module 70 from being transmitted to the vehicle body 2 and the belt module 20, and makes it possible to prevent vibrations and the like generated in the vehicle body 2 and the belt module 20 from being transmitted to the belt drive module 70.

[0101] The casing 73 of the belt drive module 70 is fixed to the assembly seat 41 and the detouring portion case 421 of the belt drive module connecting unit 40 , whereby the belt drive module 70 is fixed to the belt drive module connecting unit 40 .

[0102] (Engagement of the external output shaft of the belt drive module with the drive pulley of the belt drive module connecting unit) Next, the engagement between the external output shaft 724 of the belt drive module 70 and the drive pulley 43 of the belt drive module connecting unit 40 when connecting the belt drive module 70 to the belt drive module connecting unit 40 will be described with reference to Figures 19 to 21.

[0103] As shown in FIGS. 19 and 20, the shaft insertion hole 431 of the drive pulley 43 is a through-hole that is provided in the rotation shaft of the drive pulley 43 and passes through in the up-down direction.

[0104] The shaft insertion hole 431 has an inner circumferential surface that has a roughly cylindrical shape when viewed in the direction of the rotation axis of the drive pulley 43, i.e., from the top to bottom, and is equipped with an engagement portion 431b having an internal tooth serration 431a on its inner circumferential surface, a shaft inlet 431c provided on the upper end side of the engagement portion 431b and having a diameter larger than the outer diameter of the external output shaft 724 of the belt drive module 70, and an insertion portion 431d provided on the lower end side of the engagement portion 431b, through which a protrusion 724d provided on the tip portion 724b of the external output shaft 724 is inserted.

[0105] The inner circumferential surface of the shaft introduction port 431c is inclined so as to expand upward in a truncated cone shape from the upper end of the meshing portion 431b.

[0106] The internal serrations 431a are provided continuously from the meshing portion 431b to the inner peripheral surface of the shaft introduction port 431c.

[0107] In this embodiment, the internal tooth serrations 431a are provided on the entire inner surface of the shaft inlet 431c, but the internal tooth serrations 431a may be provided on a portion of the inner surface of the shaft inlet 431c, more specifically, in a region continuing from the meshing portion 431b and from the lower end of the inner surface of the shaft inlet 431c to a predetermined height.

[0108] Further, the taper angle θ2 of the tapered portion 724c of the external output shaft 724 is larger than the inclination angle θ3 of the inner circumferential surface of the shaft introduction port 431c.

[0109] Furthermore, at least one tooth of the internal serration 431a provided on the inner peripheral surface of the shaft introduction port 431c is a guide tooth 431a1 that protrudes further toward the rotation axis of the drive pulley 43 than the other teeth of the internal serration 431a when viewed from the top-bottom direction. In this embodiment, there is one guide tooth 431a1.

[0110] When assembling the belt drive module 70 to the belt drive module connection unit 40, the external output shaft 724 of the belt drive module 70 is inserted from above into the shaft insertion hole 431 of the drive pulley 43. At that time, the rotation axis of the external output shaft 724 and the rotation axis of the drive pulley 43 may be misaligned when viewed from the top-bottom direction, and the circumferential position of the external serrations 724a of the external output shaft 724 and the circumferential position of the internal serrations 431a of the meshing portion 431b of the shaft insertion hole 431 are not necessarily positioned to mesh with each other. However, unless the position of the rotation axis of the external output shaft 724 and the position of the rotation axis of the drive pulley 43 coincide when viewed from the top and bottom, and the circumferential position of the external serrations 724a of the external output shaft 724 and the circumferential position of the internal serrations 431a of the meshing portion 431b of the shaft insertion hole 431 are in a position where they mesh with each other, the external output shaft 724 will not be inserted into the meshing portion 431b of the shaft insertion hole 431.

[0111] In this embodiment, the shaft introduction port 431c having a diameter larger than the outer diameter of the external output shaft 724 of the belt drive module 70 is provided on the upper end side of the meshing portion 431b, so that the external output shaft 724 can be easily inserted into the shaft introduction port 431c. Since the rotary electric machine output shaft 711 is inserted into the meshing portion 431b through the shaft introduction port 431c, even if the external output shaft 724 is inserted from above into the shaft insertion hole 431 in a state in which the rotation axis of the external output shaft 724 and the rotation axis of the drive pulley 43 are misaligned when viewed from the top-bottom direction, the external output shaft 724 can be easily inserted into the meshing portion 431b.

[0112] Furthermore, since the internal tooth serrations 431a are provided from the meshing portion 431b to at least a portion of the inner surface of the shaft inlet 431c, when the external output shaft 724 is inserted from above into the shaft insertion hole 431, when the external output shaft 724 comes into contact with the shaft inlet 431c and displaces downward along the inner surface of the shaft inlet 431c, at least one of the external output shaft 724 and the drive pulley 43 rotates so that the circumferential position of the external tooth serrations 724a of the external output shaft 724 and the circumferential position of the internal tooth serrations 431a of the shaft insertion hole 431 are in meshing positions with each other due to the external tooth serrations 724a formed on the external output shaft 724 and the internal tooth serrations 431a formed on the inner surface of the shaft inlet 431c. As a result, when the external output shaft 724 passes through the shaft inlet 431c, it reaches a circumferential position where the external tooth serrations 724a mesh with the internal tooth serrations 431a of the shaft insertion hole 431 and reaches the meshing portion 431b, so that the external output shaft 724 can be easily inserted into the meshing portion 431b.

[0113] Furthermore, the inner circumferential surface of the shaft inlet 431c is inclined so as to expand upwardly from the upper end of the meshing portion 431b into a truncated cone shape. Therefore, even if the external output shaft 724 is inserted from above into the shaft insertion hole 431 with the rotation axis of the external output shaft 724 and the rotation axis of the drive pulley 43 misaligned when viewed from the top-bottom direction, the external output shaft 724 comes into contact with the inner circumferential surface of the shaft inlet 431c and approaches the meshing portion 431b while being guided along the inner circumferential surface of the shaft inlet 431c in a direction in which the rotation axis of the external output shaft 724 and the rotation axis of the drive pulley 43 coincide, and reaches the meshing portion 431b in a state in which the rotation axis of the external output shaft 724 and the rotation axis of the drive pulley 43 are approximately aligned. This makes it easier to insert the external output shaft 724 into the meshing portion 431b even when the external output shaft 724 is inserted from above into the shaft insertion hole 431 in a state in which the rotation axis of the external output shaft 724 and the rotation axis of the drive pulley 43 are misaligned when viewed from the top-bottom direction.

[0114] Furthermore, since the taper angle θ2 of the tapered portion 724c of the external output shaft 724 is larger than the inclination angle θ3 of the inner peripheral surface of the shaft introduction port 431c, it is possible to prevent surface contact between the tapered portion 724c of the external output shaft 724 and the inner peripheral surface of the shaft introduction port 431c. This makes it possible to reduce the contact area between the external output shaft 724 and the inner peripheral surface of the shaft introduction port 431c as much as possible, and since the external tooth serrations 724a of the external output shaft 724 reliably contact the internal tooth serrations 431a on the inner peripheral surface of the shaft introduction port 431c, the external tooth serrations 724a of the external output shaft 724 are positioned in the circumferential direction to mesh with the internal tooth serrations 431a of the shaft insertion hole 431, and the external output shaft 724 reaches the meshing portion 431b, so that the external output shaft 724 can be more easily inserted into the meshing portion 431b.

[0115] As described above, the tip end 724b of the external output shaft 724 is provided with a protruding portion 724d that protrudes from the tip end 724b in the axial direction of the external output shaft 724, and the shaft insertion hole 431 is provided with an insertion portion 431d on the lower end side of the meshing portion 431b. When the external output shaft 724 is completely inserted into the shaft insertion hole 431 of the drive pulley 43, the tip end 724b of the external output shaft 724 abuts against the bottom of the meshing portion 431b of the shaft insertion hole 431, and the protruding portion 724d of the external output shaft 724 is inserted into the insertion portion 431d of the shaft insertion hole 431.

[0116] As a result, when the vehicle sliding door opening and closing device 10 is in use, the protrusion 724d of the external output shaft 724 is inserted into the insertion portion 431d of the shaft insertion hole 431, thereby preventing rattling between the drive pulley 43 and the external output shaft 724, and achieving stable operation of the vehicle sliding door opening and closing device 10 over a long period of time.

[0117] Furthermore, as shown in Figures 20 and 21, at least one tooth of the internal serration 431a provided on the inner surface of the shaft inlet 431c is an guiding tooth 431a1 that protrudes toward the rotation axis of the drive pulley 43 more than the other teeth of the internal serration 431a when viewed from the top and bottom direction, so that a phase shift occurs at least in part between the external serration 724a of the external output shaft 724 and the internal serration 431a on the inner surface of the shaft inlet 431c.

[0118] Specifically, for example, when the external output shaft 724 of the belt drive module 70 is inserted from above into the shaft insertion hole 431 of the drive pulley 43 at a position where the rotation axis of the external output shaft 724 approximately coincides with the rotation axis of the drive pulley 43, the guide tooth 431a1 protrudes toward the rotation axis of the drive pulley 43 more than the other teeth of the internal serration 431a, so that the external serration 724a of the external output shaft 724 first comes into contact with the guide tooth 431a1.

[0119] 21(a), when the apex of one tooth of the external serration 724a of the external output shaft 724 comes into contact with the apex of the guide tooth 431a1, the guide tooth 431a1 protrudes toward the rotation axis of the drive pulley 43, more than the other teeth of the internal serration 431a, and therefore the center of the external output shaft 724 viewed from the top-bottom direction is shifted from the center of the truncated cone-shaped internal serration 431a by the amount that the guide tooth 431a1 protrudes from the other teeth of the internal serration 431a. Furthermore, when the external output shaft 724 is displaced downward along the guide tooth 431a1 in this state, the other teeth of the external serration 724a of the external output shaft 724 come into contact with the teeth of the internal serration 431a on the inner peripheral surface of the shaft inlet 431c, other than the guide tooth 431a1. At this time, because the guide tooth 431a1 protrudes further than the other teeth of the internal serration 431a, the other teeth of the external serration 724a of the external output shaft 724 come into contact with teeth other than the guide tooth 431a1 of the internal serration 431a on the inner surface of the shaft inlet 431c higher than when the guide tooth 431a1 is not present and all of the teeth of the internal serration 431a are the same shape, so that the circumferential spacing (phase) of each tooth of the external serration 724a at the contact position between the other teeth of the external serration 724a of the external output shaft 724 and the teeth other than the guide tooth 431a1 of the internal serration 431a on the inner surface of the shaft inlet 431c differs from the circumferential spacing (phase) of each tooth of the internal serration 431a. Therefore, when the external output shaft 724 of the belt drive module 70 is inserted from above into the shaft insertion hole 431 of the drive pulley 43, even if the apex of one tooth of the external serration 724a of the external output shaft 724 comes into contact with the apex of the guide tooth 431a1, the apex of at least one tooth of the external serration 724a of the external output shaft 724 will come into contact at a position shifted from the apex of any tooth of the internal serration 431a on the inner surface of the shaft inlet 431c.In this state, when the external output shaft 724 is further displaced downward, a rotational force is generated in the direction in which the apex of the tooth of the external serration 724a of the external output shaft 724, which has come into contact with a position shifted from the apex of any tooth of the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c, moves toward the tooth bottom of the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c, and at least one of the drive pulley 43 and the external output shaft 724 rotates. As a result, the external serration 724a of the external output shaft 724 and the internal serration 431a of the shaft insertion hole 431 mesh reliably.

[0120] 21(b), when the apex of one tooth of the external serration 724a of the external output shaft 724 comes into contact with the guide tooth 431a1 at a position shifted from the apex, when the external output shaft 724 is further displaced downward, a rotational force is generated in the direction in which the apex of the tooth of the external serration 724a of the external output shaft 724 that comes into contact with the guide tooth 431a1 at a position shifted from the apex, moves toward the tooth bottom of the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c, and at least one of the drive pulley 43 and the external output shaft 724 rotates. As a result, the external serration 724a of the external output shaft 724 and the internal serration 431a of the shaft insertion hole 431 mesh reliably.

[0121] Also, for example, when the external output shaft 724 of the belt drive module 70 is inserted from above into the shaft insertion hole 431 of the drive pulley 43 at a position where the rotation axis of the external output shaft 724 is shifted from the rotation axis of the drive pulley 43, the external serrations 724a of the external output shaft 724 come into contact with the internal serrations 431a on the inner peripheral surface of the shaft inlet 431c at a portion where the diameter of the inner peripheral surface of the shaft inlet 431c is larger than the outer diameter of the external output shaft 724, i.e., above a portion where the diameter of the inner peripheral surface of the shaft inlet 431c is the same as the outer diameter of the external output shaft 724. Therefore, at the contact position between the external serrations 724a of the external output shaft 724 and the internal serrations 431a on the inner peripheral surface of the shaft inlet 431c, the circumferential intervals (phase) of the teeth of the external serrations 724a are different from the circumferential intervals (phase) of the teeth of the internal serrations 431a. Therefore, at least one tooth apex of the external serration 724a of the external output shaft 724 contacts a position shifted from the tooth apex of the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c. In this state, when the external output shaft 724 is further displaced downward, a rotational force is generated in the direction in which the tooth apex of the external serration 724a of the external output shaft 724, which contacts a position shifted from the tooth apex of the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c, moves toward the tooth bottom of the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c, and at least one of the drive pulley 43 and the external output shaft 724 rotates. As a result, the external serration 724a of the external output shaft 724 and the internal serration 431a of the shaft insertion hole 431 mesh reliably.

[0122] In this way, at least one tooth of the internal serration 431a provided on the inner peripheral surface of the shaft introduction port 431c is a guide tooth 431a1 that protrudes toward the rotation axis of the drive pulley 43 more than the other teeth of the internal serration 431a when viewed from the top-bottom direction, so that a phase shift occurs at least partially between the external serration 724a of the external output shaft 724 and the internal serration 431a on the inner peripheral surface of the shaft introduction port 431c, and this phase shift generates a rotational force in at least one of the drive pulley 43 and the external output shaft 724, and the external serration 724a of the external output shaft 724 and the internal serration 431a of the shaft insertion hole 431 are reliably engaged with each other. This improves the workability of assembling the belt drive module 70 to the belt drive module connection unit 40.

[0123] In the shaft insertion hole 431, the dimension of the shaft inlet 431c in the direction of the rotation axis of the drive pulley 43 (in this embodiment, the vertical direction) is greater than or equal to the dimension of the meshing portion 431b in the direction of the rotation axis of the drive pulley 43 (in this embodiment, the vertical direction).

[0124] Therefore, since the dimension of the shaft inlet 431c in the direction of the rotation axis of the drive pulley 43 (in the vertical direction in this embodiment) is large, at least one of the drive pulley 43 and the external output shaft 724 rotates by the time the external output shaft 724 contacts the inner surface of the shaft inlet 431c and reaches the meshing portion 431b, and the external serrations 724a of the external output shaft 724 and the internal serrations 431a of the shaft insertion hole 431 reliably mesh with each other.

[0125] Furthermore, when assembling the belt drive module 70 to the belt drive module connection unit 40, even if it is necessary to insert the external output shaft 724 into the shaft insertion hole 431 at an angle to the rotation axis of the drive pulley 43, the dimension of the shaft inlet 431c in the direction of the rotation axis of the drive pulley 43 (in this embodiment, the vertical direction) is large, so that at least one of the drive pulley 43 and the external output shaft 724 will rotate with a light operating force.

[0126] This improves the workability of assembling the belt drive module 70 to the belt drive module connection unit 40.

[0127] In addition, in the shaft insertion hole 431, the dimension of the shaft inlet 431c in the direction of the rotational axis of the drive pulley 43 (in this embodiment, the vertical direction) may be the same as the dimension of the meshing portion 431b in the direction of the rotational axis of the drive pulley 43 (in this embodiment, the vertical direction).

[0128] In this case, the dimension of the drive pulley 43 in the rotation axis direction (in the present embodiment, the vertical direction) can be reduced, while the workability of assembling the belt drive module 70 to the belt drive module connection unit 40 can be improved.

[0129] In this manner, the external output shaft 724 of the belt drive module 70 is meshed with the drive pulley 43 of the belt drive module connection unit 40, and the belt drive module 70 is assembled to the belt drive module connection unit 40. As a result, the power of the rotating electric machine 71 is transmitted from the rotating electric machine output shaft 711 to the first gear 72a of the reducer 72, reduced in speed by the first gear 72a and the second gear 72b, and transmitted from the external output shaft 724 of the second gear 72b to the drive pulley 43 of the belt drive module connection unit 40, and the drive pulley 43 is rotationally driven by the power of the rotating electric machine 71.

[0130] In this embodiment, when the rotating electric machine 71 is driven in the forward direction and the rotating electric machine output shaft 711 rotates clockwise as viewed from above, the drive pulley 43 is driven in the forward direction as viewed from above, and the endless belt 50 is circulated and moved clockwise as viewed from above. As a result, the belt connector 60 fixed to the endless belt 50 moves forward, and the sliding door 8 connected to the endless belt 50 via the belt connector 60 and the center guide roller unit 80c moves forward, i.e., in the closing direction. In this way, the vehicle sliding door opening and closing device 10 drives the rotating electric machine 71 in the forward direction in the belt drive module 70 to move the sliding door 8 in the closing direction.

[0131] In addition, when the rotating electric machine 71 is driven in the reverse direction and the rotating electric machine output shaft 711 rotates counterclockwise as viewed from above, the drive pulley 43 is driven to rotate counterclockwise as viewed from above, and the endless belt 50 is circulated counterclockwise as viewed from above. As a result, the belt connector 60 fixed to the endless belt 50 moves backward, and the sliding door 8 connected to the endless belt 50 via the belt connector 60 and the center guide roller unit 80c moves backward, i.e., in the opening direction. In this way, the vehicle sliding door opening and closing device 10 drives the rotating electric machine 71 in the reverse direction in the belt drive module 70 to move the sliding door 8 in the closing direction.

[0132] Although one embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an embodiment. It is clear that a person skilled in the art can come up with various modified or revised examples within the scope of the claims, and it is understood that these also naturally belong to the technical scope of the present invention. In addition, the components in the above embodiment may be arbitrarily combined within the scope of the invention.

[0133] This specification describes at least the following items. In parentheses, components corresponding to the above-described embodiment are shown as examples, but the present invention is not limited to these.

[0134] (1) a belt guide (belt guide 30) attached to a vehicle body (vehicle body 2) so that its longitudinal direction extends in a substantially horizontal direction; an endless belt (endless belt 50) wound around one end (front end 30a) and the other end (rear end 30b) of the belt guide in the longitudinal direction; A belt connector (belt connector 60) fixed to the endless belt and connected to a sliding door (sliding door 8); a belt drive module (belt drive module 70) that circulates the endless belt along the longitudinal direction of the belt guide; a belt drive module connection unit (belt drive module connection unit 40) that connects the belt guide and the belt drive module and circulates the endless belt by power output from the belt drive module; A vehicle sliding door opening and closing device (vehicle sliding door opening and closing device 10) comprising: The belt drive module includes: A rotating electric machine (rotating electric machine 71) that generates power for circulating the endless belt; an external output shaft (external output shaft 724) that outputs the power of the rotating electric machine to the outside of the belt drive module; The outer circumferential surface of the external output shaft is provided with an external serration (external serration 724a), The belt-driven module connection unit includes a drive pulley (drive pulley 43) around which the endless belt is wound and in which a shaft insertion hole (shaft insertion hole 431) through which the external output shaft is inserted is formed in a rotation shaft, The shaft insertion hole is When viewed from the direction of the rotation axis of the drive pulley, an inner peripheral surface of the meshing portion (meshing portion 431b) has a substantially cylindrical shape and has an internal serration (internal serration 431a) on the inner peripheral surface. a shaft introduction port (shaft introduction port 431c) that is provided on one end side of the meshing portion in the rotation axis direction and has a diameter larger than an outer diameter of the external output shaft, The internal tooth serration is provided from the meshing portion to at least a part of the inner circumferential surface of the shaft introduction port. A vehicle sliding door opening and closing device.

[0135] According to (1), it becomes easy to mesh the external serrations of the external output shaft with the internal serrations of the meshing portion of the shaft insertion hole, and the external output shaft can be easily inserted into the shaft insertion hole of the drive pulley, thereby improving workability when assembling the belt drive module to the belt drive module connection unit.

[0136] (2) The vehicle sliding door opening and closing device according to (1), an inner circumferential surface of the shaft introduction port is inclined so as to expand in a truncated cone shape in the direction of the rotation axis from an end portion on the one end side of the meshing portion, A tapered portion (tapered portion 724c) is formed at the tip end (tip end 724b) of the external output shaft, The taper angle (taper angle θ2) of the tapered portion is larger than the inclination angle (inclination angle θ3) of the inner circumferential surface of the shaft introduction port. A vehicle sliding door opening and closing device.

[0137] According to (2), even when the external output shaft is inserted from above into the shaft insertion hole in a state in which the rotation axis of the external output shaft and the rotation axis of the drive pulley are misaligned when viewed from the top-bottom direction, the external output shaft can be inserted more easily into the meshing portion. Furthermore, since the taper angle of the tapered portion of the external output shaft is larger than the inclination angle of the inner peripheral surface of the shaft introduction port, it is possible to prevent surface contact between the tapered portion of the external output shaft and the inner peripheral surface of the shaft introduction port. This makes it possible to minimize the contact area between the external output shaft and the inner peripheral surface of the shaft introduction port, and ensures that the external serrations of the external output shaft and the internal serrations on the inner peripheral surface of the shaft introduction port come into contact with each other, making it easier to insert the external output shaft into the meshing portion.

[0138] (3) The vehicle sliding door opening and closing device according to (1), At least one tooth of the internal serration provided on the inner peripheral surface of the shaft introduction port is an induction tooth (inducing tooth 431a1) that protrudes toward the rotation shaft more than other teeth of the internal serration. A vehicle sliding door opening and closing device.

[0139] According to (3), a phase shift occurs at least partially between the external serrations of the external output shaft and the internal serrations on the inner peripheral surface of the shaft inlet, and this phase shift generates a rotational force in at least one of the drive pulley and the external output shaft, reliably meshing the external serrations of the external output shaft with the internal serrations of the shaft insertion hole, thereby improving the workability when assembling the belt drive module to the belt drive module connection unit.

[0140] (4) The vehicle sliding door opening and closing device according to (1), a protruding portion (protruding portion 724d) protruding from a tip end portion (tip end portion 724b) of the external output shaft in an axial direction of the external output shaft is provided, The shaft insertion hole is The insertion portion (insertion portion 431d) is provided on the other end side of the meshing portion in the rotation axis direction and into which the protrusion is inserted. A vehicle sliding door opening and closing device.

[0141] According to (4), when the vehicle sliding door opening and closing device is in use, the protruding portion of the external output shaft is inserted into the insertion portion of the shaft insertion hole, thereby preventing rattling between the drive pulley and the external output shaft, and achieving stable operation of the vehicle sliding door opening and closing device over a long period of time.

[0142] (5) A vehicle sliding door opening and closing device according to any one of (1) to (4), In the shaft insertion hole, The dimension of the shaft inlet in the direction of the rotation axis is equal to or greater than the dimension of the meshing portion in the direction of the rotation axis. A vehicle sliding door opening and closing device.

[0143] According to (5), the external serrations of the external output shaft and the internal serrations of the shaft insertion hole reliably mesh with each other, and even when it is necessary to insert the external output shaft into the shaft insertion hole at an angle to the rotation axis of the drive pulley, at least one of the drive pulley and the external output shaft can be rotated with a light operating force, thereby improving the workability when assembling the belt drive module to the belt drive module connection unit.

[0144] (6) A vehicle sliding door opening and closing device according to any one of (1) to (4), In the shaft insertion hole, The dimension of the shaft inlet in the direction of the rotation axis is the same as the dimension of the meshing portion in the direction of the rotation axis. A vehicle sliding door opening and closing device.

[0145] According to (6), the external serrations of the external output shaft and the internal serrations of the shaft insertion hole reliably mesh with each other, and even when it is necessary to insert the external output shaft into the shaft insertion hole at an angle to the rotation axis of the drive pulley, at least one of the drive pulley and the external output shaft can be rotated with a light operating force. This reduces the dimension of the drive pulley in the direction of the rotation axis, and improves the ease of assembly when assembling the belt drive module to the belt drive module connection unit. [Explanation of symbols]

[0146] 2. Body 8. Sliding Door 10. Vehicle sliding door opening and closing device 30 Belt guide 30a Front end (one end) 30b Rear end (other end) 40 Belt drive module connection unit 43 Drive pulley 431 Shaft insertion hole 431a Internal serration 431a1 Guiding teeth 431b Meshing part 431c Shaft inlet 431d Insertion part 50 Endless Belt 60 Belt connector 70 Belt Drive Module 71 Rotating Electric Machine 724 External output shaft 724a External serration 724b Tip 724c Tapered section 724d Protrusion θ2 Taper angle θ3 Tilt angle

Claims

1. A belt guide attached to a vehicle body so that its longitudinal direction extends in a substantially horizontal direction; an endless belt wound around one end and the other end of the belt guide in the longitudinal direction; A belt connector fixed to the endless belt and connected to a sliding door; a belt drive module that outputs power for circulating the endless belt along the longitudinal direction of the belt guide; a belt drive module connection unit that connects the belt guide and the belt drive module and circulates the endless belt by power output from the belt drive module; A vehicle slide door opening and closing device comprising: The belt drive module includes: a rotating electric machine that generates power for circulating the endless belt; an external output shaft that outputs the power of the rotating electric machine to an outside of the belt drive module; The outer circumferential surface of the external output shaft is provided with external tooth serrations, the belt drive module connection unit includes a drive pulley around which the endless belt is wound and a shaft insertion hole through which the external output shaft is inserted is formed in a rotation shaft of the drive pulley; The shaft insertion hole is a meshing portion having an inner peripheral surface that is substantially cylindrical when viewed in a direction of a rotation axis of the drive pulley and that is provided with internal serrations on the inner peripheral surface; a shaft introduction port provided on one end side of the meshing portion in the rotation axis direction, the shaft introduction port having a diameter larger than an outer diameter of the external output shaft, The internal tooth serration is provided from the meshing portion to at least a part of the inner circumferential surface of the shaft introduction port. A vehicle sliding door opening and closing device.

2. The vehicle sliding door opening and closing device according to claim 1, an inner circumferential surface of the shaft introduction port is inclined so as to expand in a truncated cone shape in the direction of the rotation axis from an end portion on the one end side of the meshing portion, The external output shaft has a tapered portion formed at a tip end thereof, A taper angle of the tapered portion is larger than an inclination angle of an inner peripheral surface of the shaft introduction port. A vehicle sliding door opening and closing device.

3. The vehicle sliding door opening and closing device according to claim 1, At least one tooth of the internal serration provided on the inner peripheral surface of the shaft introduction port is a guide tooth that protrudes toward the rotation shaft more than other teeth of the internal serration. A vehicle sliding door opening and closing device.

4. The vehicle sliding door opening and closing device according to claim 1, a protrusion protruding from a tip end of the external output shaft in an axial direction of the external output shaft, The shaft insertion hole is an insertion portion provided on the other end side of the meshing portion in the rotation axis direction and into which the protrusion is inserted; A vehicle sliding door opening and closing device.

5. The vehicle sliding door opening and closing device according to any one of claims 1 to 4, In the shaft insertion hole, The dimension of the shaft inlet in the direction of the rotation axis is equal to or greater than the dimension of the meshing portion in the direction of the rotation axis. A vehicle sliding door opening and closing device.

6. The vehicle sliding door opening and closing device according to any one of claims 1 to 4, In the shaft insertion hole, The dimension of the shaft inlet in the direction of the rotation axis is the same as the dimension of the meshing portion in the direction of the rotation axis. A vehicle sliding door opening and closing device.

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