JP7140674B2 - GEAR MECHANISM ASSEMBLY STRUCTURE AND VEHICLE DOOR OPERATING DEVICE - Google Patents

Description

The present invention relates to an assembly structure of a gear mechanism and a vehicle door opening/closing device.

The vehicle door opening/closing device of Patent Document 1 includes an extendable support member interposed between a door and a body. The back door can be held in a predetermined open position by the support member. The support member comprises a first housing unit having an electric motor drive mechanism and a second housing unit integrally coupled with the first housing unit. The second housing unit comprises a spindle drive mechanism driven by an electric motor drive mechanism.

This electric motor drive mechanism includes an electric motor and a reduction gear mechanism that reduces rotation of the electric motor. The reduction gear mechanism is a planetary gear mechanism including planetary gears and a carrier having a gear shaft that rotatably supports the planetary gears.

JP 2017-101537 A

In assembling the planetary gear mechanism, after the planetary gears and the carrier are arranged at a predetermined position where the gear shaft can be inserted through the planetary gears and the carrier, the gear shaft is inserted through the planetary gears and the carrier to form the planetary gears and the carrier. may be assembled. When assembling the planetary gear and the carrier, it is necessary to insert the gear shaft while adjusting the positional deviation between the planetary gear and the carrier.

However, Patent Literature 1 does not describe the workability of assembling the planetary gear to the carrier.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gear mechanism assembly structure and a vehicle door opening/closing device capable of improving the workability of assembly of a planetary gear to a carrier.

One aspect of the present invention includes a sun gear, a case having a planetary gear meshing with the sun gear, and an internal gear meshing with the planetary gear; A gear mechanism assembly structure including a carrier that supports the planetary gear so that it can freely revolve around the sun gear and that rotates in conjunction with the planetary gear revolving with respect to the sun gear, wherein the planetary gear rotates around the sun gear. The carrier includes a centrally provided planetary gear hole and a projection projecting from an axial end of the planetary gear, the carrier receiving the planetary gear and having an opening provided in the carrier. An accommodating portion, a gear shaft inserted through the planetary gear hole of the planetary gear to pivotally support the planetary gear, and a carrier hole forming part of the accommodating portion and through which the gear shaft is inserted are provided. A carrier plate is provided on an end face of the carrier plate facing the accommodating portion, and when the planetary gear is inserted through the opening and assembled to the carrier, the planetary gear hole of the planetary gear and the carrier of the carrier are installed. a holding portion for holding the protruding portion of the planetary gear so as to hold the planetary gear at an assembly position where the hole is aligned with the planetary gear; A gear mechanism assembly structure is provided in which the planetary gear is assembled to the carrier by inserting the gear shaft through the carrier hole of the carrier and the planetary gear hole of the planetary gear.

According to this assembly structure of the gear mechanism, when the planetary gear is inserted through the opening of the carrier and assembled into the accommodating portion of the carrier, the planetary gear is held at a predetermined assembly position by the holding portion provided on the carrier plate. be done. As a result, when the shaft is inserted into the planetary gear hole of the planetary gear and the carrier hole of the carrier, the planetary gear can be reliably prevented from falling off, and it is necessary to adjust the positions of the planetary gear hole and the carrier hole. Since there is no

The assembling structure of the gear mechanism of the present invention can improve workability of assembling the planetary gear to the carrier.

1 is a perspective view showing a rear portion of a vehicle body in which a vehicle door opening/closing device according to a first embodiment of the present invention is employed; FIG. 1 is a longitudinal sectional view of a vehicle door opening/closing device according to a first embodiment of the present invention; FIG. 2 is an exploded perspective view of the speed reduction mechanism according to the first embodiment; FIG. FIG. 2 is an exploded perspective view of the first reduction gear mechanism according to the first embodiment; FIG. 4 is an exploded perspective view of a second reduction gear mechanism according to the first embodiment; 4 is an exploded perspective view of the first carrier unit according to the first embodiment, viewed from the electric motor side; FIG. FIG. 4 is an exploded perspective view of the first carrier unit according to the first embodiment, viewed from the second reduction gear mechanism side; The perspective view of the periphery of the 1st carrier hole provided in the 1st carrier plate which concerns on 1st Embodiment. FIG. 4 is a top view of the periphery of a first carrier hole provided in the first carrier plate according to the first embodiment; FIG. 4 is an exploded perspective view of the second carrier unit according to the first embodiment, viewed from the side of the first reduction gear mechanism; FIG. 4 is an exploded perspective view of the second carrier unit according to the first embodiment, viewed from the spindle side; The perspective view around the 1st carrier hole provided in the 1st carrier plate which concerns on 2nd Embodiment. The perspective view of the periphery of the 1st carrier hole provided in the 1st carrier plate which concerns on 3rd Embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
[overall structure]
FIG. 1 is a perspective view showing a rear portion of a vehicle 2 in which a vehicle door opening/closing device 1 according to the first embodiment is employed.

Referring to FIG. 1, a vehicle door opening/closing device 1 of this embodiment is cylindrical and connected to a door 2a and a body 2b of a vehicle 2. As shown in FIG. The door 2a is driven to open and close as the vehicle door opening/closing device 1 expands and contracts. In the following description, "axial direction", "circumferential direction", and "radial direction" may indicate the axial direction, the circumferential direction, and the radial direction of the vehicle door opening/closing device 1, respectively.

FIG. 2 is a longitudinal sectional view of the vehicle door opening/closing device according to this embodiment.

Referring to FIG. 2 , the vehicle door opening/closing device 1 of this embodiment includes a first housing 10 , a second housing 20 , a motor drive mechanism 30 and a spindle drive mechanism 40 .

The first housing 10 includes a cylindrical accommodating portion 11 that accommodates the motor drive mechanism 30 and a cylindrical cover portion 12 that is screwed and fixed to the accommodating portion 11 . Here, in the first housing 10, the accommodating portion 11 and the cover portion 12 may be integrated. One axial end of the accommodating portion 11 (the right end in the drawing) is open and closed by a shaft end member 13 . The first housing 10 is connected to the body 2 b (shown in FIG. 1) of the vehicle 2 via a ball joint (not shown) connected to the shaft end member 13 .

The second housing 20 is cylindrical, and the outer diameter of the second housing 20 is smaller than the inner diameter of the first housing 10 . The second housing 20 is arranged coaxially with the first housing 10 and housed inside the first housing 10 so as to be axially movable relative to the first housing 10 . One end of the second housing 20 is closed by a shaft end member 21 . The second housing 20 is connected to the door 2 a (shown in FIG. 1) of the vehicle 2 via a ball joint (not shown) connected to the shaft end member 21 . A coil spring 22 is arranged coaxially with the second housing 20 inside the second housing 20 in the radial direction.

One end of the coil spring 22 (the right end in the drawing) contacts the first housing 10 , and the other end of the coil spring 22 (the left end in the drawing) contacts the second housing 20 . is in contact with The coil spring 22 is arranged in a compressed state, and elastically urges the first housing 10 and the second housing 20 in the direction in which the vehicle door opening/closing device 1 expands.

The motor drive mechanism 30 includes an electric motor 31 as a drive source and a reduction mechanism 32 that reduces the rotation speed of the electric motor 31 . The motor drive mechanism 30 is housed inside the housing portion 11 of the first housing 10 . Specifically, the electric motor 31 and the speed reduction mechanism 32 are fixed to the housing portion 11 of the first housing 10 . As clearly shown in FIG. 2 , a sun gear 33 is fixed to the tip of the output shaft 31 a of the electric motor 31 to transmit the rotation of the output shaft 31 a of the electric motor 31 to the speed reduction mechanism 32 . The sun gear 33 is provided coaxially with the output shaft 31a, and rotates around the rotation axis C when the output shaft 31a rotates. In this embodiment, the sun gear 33 is a helical gear. The speed reduction mechanism 32 is an example of a gear mechanism according to the invention.

The spindle drive mechanism 40 includes a spindle 50 , a spindle nut 60 , a push rod 70 and a guide tube 80 . The spindle drive mechanism 40 is arranged radially inside the coil spring 22 . Specifically, in the radial direction, the guide tube 80 is arranged inside the coil spring 22 , and the push rod 70 is housed inside the guide tube 80 . Also, the spindle nut 60 is fixed to one end of the push rod 70 . The spindle 50 is arranged radially inside the push rod 70 and the spindle nut 60 .

The spindle 50 is provided with a thread groove 50a on its outer peripheral surface, as shown most clearly in FIG. The spindle 50 is coaxially arranged within the first housing 10 . As shown most clearly in FIG. 2, the base end 50b of the spindle 50 is rotatably supported by a bearing 14 provided in the first housing 10. As shown in FIG. Further, the spindle 50 is mechanically connected to the output shaft 31 a of the electric motor 31 via the speed reduction mechanism 32 and is rotationally driven by the electric motor 31 .

When the door 2a (shown in FIG. 1) of the vehicle 2 is closed, the vehicle door opening/closing device 1 is in a state in which the coil spring 22 is most compressed as shown in FIG. It is located near the proximal end 50b of the spindle 50. As shown in FIG. When the electric motor 31 is driven from this state, the rotation of the output shaft 31a of the electric motor 31 is decelerated by the deceleration mechanism 32 and transmitted to the spindle 50, so that the spindle 50 is rotationally driven. Since the spindle nut 60 and the push rod 70 are non-rotatably engaged with the guide tube 80 and the first housing 10 , the rotational movement of the spindle 50 is linear relative to the spindle nut 60 with respect to the guide tube 80 . converted to motion. Specifically, spindle nut 60 and push rod 70 move axially. As the push rod 70 moves, the second housing 20 moves relative to the first housing 10 . As described above, relative movement of the first housing 10 and the second housing 20 causes the vehicle door opening/closing device 1 to extend and open the door 2a connected via the shaft end member 21. drive up to

[Reduction mechanism]
The configuration of the speed reduction mechanism 32 will be described below. FIG. 3 is an exploded perspective view of the speed reduction mechanism 32 according to this embodiment.

Referring to FIG. 3, the speed reduction mechanism 32 according to the present embodiment includes a first reduction gear mechanism 100 that reduces and outputs the rotation from the electric motor 31 (shown in FIG. 2), and and a second reduction gear mechanism 200 that reduces and outputs the rotated rotation. In other words, the speed reduction mechanism 32 according to this embodiment is a two-stage speed reducer. The first reduction gear mechanism 100 and the second reduction gear mechanism 200 are examples of gear mechanisms according to the present invention.

The reduction gear mechanism 32 includes an upper case 300 that engages with the first reduction gear mechanism 100 and covers the second reduction gear mechanism 200 .

The upper case 300 is a bottomed cylindrical member. The upper case 300 has a circular spindle insertion hole 301 through which the base end 50b (shown in FIG. 2) of the spindle 50 is inserted, and an engaging hole 302 provided on the side surface of the upper case 300. As shown in FIG.

The upper case 300 is fixed to the first reduction gear mechanism 100 from the second reduction gear mechanism 200 side in a state in which the first reduction gear mechanism 100 and the second reduction gear mechanism 200 are mechanically connected. It is attached so as to cover the second reduction gear mechanism 200 . Specifically, when the engagement hole 302 of the upper case 300 and the engagement claw 101b provided on the first case 101 of the first reduction gear mechanism 100 (to be described later) are engaged, the upper case 300 is It is fixed to the 1 reduction gear mechanism 100 .

As clearly shown in FIG. 2, the upper case 300 rotates relative to the receiving portion 11 of the first housing 10 via the mounting member 15 while the speed reduction mechanism 32 is mounted on the first housing 10. It's fixed so you can't.

FIG. 4 is an exploded perspective view of the first reduction gear mechanism 100. FIG.

Referring to FIG. 4, the first reduction gear mechanism 100 of the present embodiment includes a first case 101, a first carrier unit 102 housed in the first case 101, and a rotation of the first reduction gear mechanism 100 to a second and a connecting sun gear 103 for transmission to a reduction gear mechanism 200 (shown in FIG. 3). The first reduction gear mechanism 100 of this embodiment is a planetary gear mechanism.

The first case 101 is a bottomed cylindrical member having a first internal gear 101a on its inner peripheral surface. The first internal gear 101a of this embodiment is a helical gear. The first case 101 also includes an engaging claw 101 b provided on the outer peripheral surface of the first case 101 and an engaging claw 101 c provided on the outer peripheral surface of the first case 101 . As clearly shown in FIG. 2, the first case 101 has an insertion hole 101d through which the output shaft 31a of the electric motor 31 and the sun gear 33 fixed to the output shaft 31a are inserted.

As described above, the first case 101 is fixed to the upper case 300 by engaging the engaging claws 101b of the first case 101 with the engaging holes 302 (shown in FIG. 3) of the upper case 300. there is Further, as clearly shown in FIG. 2, the electric motor 31 is prevented from rotating relative to the electric motor 31 by engaging the engaging claw 101c with the engaging hole 31c of the mounting portion 31b of the electric motor 31. is fixed to The first case 101 is provided coaxially with the rotation axis C of the sun gear 33 . In other words, the first case 101 is provided coaxially with the output shaft 31 a of the electric motor 31 .

Referring to FIG. 4, the first carrier unit 102 comprises four (only three shown in FIG. 4) first planetary gears 33 (shown in FIG. 2) that mesh with a sun gear 33 (shown in FIG. 2) fixed to the output shaft 31a of the electric motor 31. A gear 110 is provided. The first carrier unit 102 includes a first carrier 120 that supports the first planetary gear 110 so as to rotate freely and revolve around the sun gear 33 (shown in FIG. 2). The first carrier unit 102 is attached so as to be relatively rotatable with respect to the first case 101 . Also, the first carrier unit 102 is provided coaxially with the rotation axis C of the sun gear 33 (shown in FIG. 2).

The first planetary gear 110 is a helical gear that meshes with the sun gear 33 (shown in FIG. 2) and also meshes with the first internal gear 101 a of the first case 101 . The first planetary gear 110 is pivotally supported by a first gear shaft 130 (described later) fixed to the first carrier 120 and assembled to the first carrier 120 .

The first carrier 120 is a substantially cylindrical member that supports the four first planetary gears 110 rotatably and revolvingly around the sun gear 33 . The first carrier 120 includes four first gear shafts 130 that support the four first planetary gears 110 respectively. Also, the first carrier 120 is attached to the first case 101 via the first planetary gear 110 so as to be relatively rotatable. The first carrier 120 rotates around the rotation axis C in conjunction with the revolution about the sun gear 33 (shown in FIG. 2) of the first planetary gear 110 .

The first carrier 120 has a first output shaft 140 for outputting rotation of the first carrier 120 about the rotation axis C. As shown in FIG. The first output shaft 140 is arranged coaxially with the first carrier 120 . The first output shaft 140 rotates about the rotation axis C as the first carrier 120 rotates about the rotation axis C. As shown in FIG.

The connecting sun gear 103 is a helical gear that meshes with the second planetary gear 210 (shown in FIG. 5) of the second reduction gear mechanism 200 . The connecting sun gear 103 is fixed to the first output shaft 140 of the first carrier 120 . The connecting sun gear 103 is arranged coaxially with the first output shaft 140 of the first carrier 120 . The connecting sun gear 103 rotates about the rotation axis C as the first output shaft 140 rotates about the rotation axis C. As shown in FIG.

When the electric motor 31 rotates the sun gear 33 (shown in FIG. 2), the first planetary gear 110 rotates around the first rotation axis C1. The first planetary gear 110 rotates around the first rotation axis C1 in a state in which the first planetary gear 110 meshes with the first internal gear 101a of the first case 101. 101 rotates around the rotation axis C along the first internal gear 101a. In other words, the first planetary gear 110 revolves around the sun gear 33 (shown in FIG. 2).

The first carrier 120 rotates around the rotation axis C in conjunction with the revolution about the sun gear 33 of the first planetary gear 110 . Rotation of the first carrier 120 about the rotation axis C is achieved through the first output shaft 140 fixed to the first carrier 120 and the connecting sun gear 103 fixed to the first output shaft 140 via the second reduction gear. It is transmitted to mechanism 200 (shown in FIG. 3). The rotation of the electric motor 31 (shown in FIG. 2) is reduced by the first reduction gear mechanism 100 and output to the second reduction gear mechanism 200 (shown in FIG. 3).

FIG. 5 is an exploded perspective view of the second reduction gear mechanism 200. FIG.

Referring to FIG. 5 , the second reduction gear mechanism 200 of this embodiment includes a second case 201 , a second carrier unit 202 housed in the second case 201 , and a spindle 50 that rotates the second reduction gear mechanism 200 . and an output 203 for communicating to (shown in FIG. 2). The second reduction gear mechanism 200 of this embodiment is a planetary gear mechanism.

The second case 201 is a bottomed cylindrical member having a second internal gear 201a on its inner peripheral surface. The second internal gear 201a of this embodiment is a helical gear. As clearly shown in FIG. 2, the second case 201 includes 201b through which the first output shaft 140 of the first reduction gear mechanism 100 and the connecting sun gear 103 fixed to the first output shaft 140 are inserted. have. The second case 201 is provided coaxially with the rotation axis C of the connecting sun gear 103 . In other words, the second case 201 is provided coaxially with the first output shaft 140 of the first reduction gear mechanism 100 . Also, the second case 201 is fitted to the first case 101 .

The second carrier unit 202 comprises four (only three shown in FIG. 5) second gears (only three shown in FIG. 5) that mesh with the connecting sun gears 103 (shown in FIG. 4) fixed to the first output shaft 140 of the first reduction gear mechanism 100. A planetary gear 210 is provided. The second carrier unit 202 includes a second carrier 220 that supports the second planetary gears 210 so as to rotate freely and revolve around the connecting sun gear 103 (shown in FIG. 4). The second carrier unit 202 is attached so as to be relatively rotatable with respect to the second case 201 . The second carrier unit 202 is arranged coaxially with the connecting sun gear 103 (shown in FIG. 4).

The second planetary gear 210 is a helical gear that meshes with the connecting sun gear 103 (shown in FIG. 4) and also meshes with the second internal gear 201a of the second case 201 . The second planetary gear 210 is pivotally supported by a second gear shaft 230 (described later) fixed to the second carrier 220 and assembled to the second carrier 220 .

The second carrier 220 is a substantially cylindrical member that supports the four second planetary gears 210 rotatably and revolvingly around the connecting sun gear 103 . The second carrier 220 includes four second gear shafts 230 (only one is shown in FIG. 5) that pivotally support the four second planetary gears 210, respectively. Also, the second carrier 220 is attached to the second case 201 via the second planetary gear 210 so as to be relatively rotatable. In other words, the second carrier 220 is rotatable around the rotation axis C. As shown in FIG. The second carrier 220 has mounting holes 220a for mounting the output section 203 . The mounting hole 220 a is arranged coaxially with the second carrier 220 .

The output part 203 is fixed to a mounting hole 220 a of the second carrier 220 . The output part 203 comprises a connection recess 203a to which the spindle 50 (shown in FIG. 2) is connected. As clearly shown in FIG. 2, the base end portion 50b of the spindle 50 is fitted into the connection recess 203a of the output portion 203. As shown in FIG.

When the connecting sun gear 103 (shown in FIG. 4) rotates around the rotation axis C, the second planetary gear 210 rotates around the second rotation axis C2. As the second planetary gear 210 rotates around the second rotation axis C2 in a state in which the second planetary gear 210 meshes with the second internal gear 201a of the second case 201, the second planetary gear 210 moves toward the second case. 201 rotates around the rotation axis C along the second internal gear 201a. In other words, the second planetary gear 210 revolves around the connecting sun gear 103 (shown in FIG. 4).

The second carrier 220 rotates around the rotation axis C in conjunction with the revolution of the second planetary gear 210 about the connecting sun gear 103 . Rotation of the second carrier 220 about the rotation axis C is transmitted to the spindle 50 (shown in FIG. 2) via the output portion 203 fixed to the second carrier 220 . That is, the rotation of the first carrier 120 (shown in FIG. 4) around the rotation axis C is reduced by the second reduction gear mechanism 200 and output to the spindle 50 (shown in FIG. 2). As a result, the rotation of the electric motor 31 (shown in FIG. 2) about the rotation axis C is reduced by the first reduction gear mechanism 100 (shown in FIG. 3) and the second reduction gear mechanism 200 to the spindle 50 (shown in FIG. 2). shown in ).

[Structure of first carrier unit]
The structure of the first carrier unit 102 will be described below. FIG. 6 is an exploded perspective view of the first carrier unit 102 viewed from the electric motor 31 (shown in FIG. 2) side. FIG. 7 is an exploded perspective view of the first carrier unit 102 viewed from the second reduction gear mechanism 200 side. 6 and 7, only one of the four first planetary gears 110 is shown and only one of the four first gear shafts 130 is shown.

The first gear shaft 130 is provided with a cylindrical first gear shaft main body 131 and one end portion of the first gear shaft main body 131, and the diameter of the first gear shaft 130 decreases toward the outside in the axial direction of the first gear shaft 130. A first tapered portion 132 is provided. The first gear shaft 130 also includes a first large diameter portion 133 provided at the other end of the first gear shaft main body 131 . The diameter of the first large diameter portion 133 is larger than the diameter of the first gear shaft main body 131 .

The first planetary gear 110 includes a first planetary gear body 111 having teeth formed thereon, and substantially cylindrical first protrusions 112A and 112B provided to protrude from both sides of the first planetary gear body 111 in the axial direction. Prepare. The first planetary gear main body 111 and the first protrusions 112A and 112B are integrally formed. The first planetary gear main body 111 and the first protrusions 112A and 112B are arranged coaxially.

In addition, the first planetary gear 110 has a first planetary gear hole 113 that penetrates the first planetary gear main body 111 and the first projections 112A and 112B.

The first protruding portions 112A and 112B are provided with tapered hole portions 114 provided so that the first planetary gear hole 113 widens outward in the axial direction of the first planetary gear 110 .

The first carrier 120 includes a pair of disk-shaped first carrier plates 121A and 121B, and four first struts 122 provided to connect the pair of first carrier plates 121A and 121B. The pair of first carrier plates 121A and 121B and the four first struts 122 are integrally formed. The first carrier plate 121A and the first carrier plate 121B are arranged in parallel and coaxially with each other. The four first struts 122 are arranged side by side at equal intervals in the circumferential direction of the first carrier plates 121A and 121B.

The first carrier 120 includes four first accommodation portions 123 that respectively accommodate the first planetary gears 110 . The first accommodating portion 123 is composed of a first carrier plate 121A, a first carrier plate 121B, and two first support columns 122 adjacent in the circumferential direction. The first housing portion 123 has a first opening 123 a provided on the side surface of the first carrier 120 . The first opening 123a of the first carrier 120 is defined by the first carrier plate 121A, the first carrier plate 121B, and two circumferentially adjacent first pillars 122. As shown in FIG. As shown in FIG. 4 , the first planetary gears 110 are exposed from the first opening 123 a of the first carrier 120 when the first planetary gears 110 are attached to the first accommodating portion 123 .

The first carrier plate 121A has four first carrier holes 124 through which the first gear shafts 130 are inserted. The four first carrier holes 124 are respectively provided between two first support columns 122 adjacent to each other in the circumferential direction of the first carrier plate 121A in the first carrier plate 121A.

Further, as shown in FIG. 6, the first carrier plate 121A of the present embodiment has four first concave portions that are provided so as to be concave in the plate thickness direction of the first carrier plate 121A from the end surface on the first accommodating portion 123 side. 125. The first recess 125 provided in the first carrier plate 121A is provided around the first carrier hole 124 provided in the first carrier plate 121A. Also, the four first concave portions 125 are respectively provided between two first support columns 122 adjacent to each other in the circumferential direction of the first carrier plate 121A in the first carrier plate 121A.

As shown in FIG. 7, the first carrier plate 121A has a first mounting portion 126 for mounting the first output shaft 140 (shown in FIG. 4). The first mounting portion 126 is provided so as to protrude from the first carrier 120 on the side opposite to the first accommodating portion 123 .

As shown in FIG. 6, the first carrier plate 121B of this embodiment has a first insertion hole 127 for inserting the output shaft 31a of the electric motor 31 and the sun gear 33 fixed to the output shaft 31a. Also, the first carrier plate 121B has a first carrier hole 124 through which the first gear shaft 130 is inserted. The first carrier hole 124 of the first carrier plate 121B is arranged coaxially with the first carrier hole 124 of the first carrier plate 121A.

In addition, as shown in FIG. 7, the first carrier plate 121B of the present embodiment has four first recesses provided so as to be recessed in the plate thickness direction of the first carrier plate 121B from the end surface on the side of the first accommodating portion 123. 125. The first recess 125 provided in the first carrier plate 121B is provided around the first carrier hole 124 provided in the first carrier plate 121B. Also, the first recesses 125 provided in the four first carrier plates 121B are provided between the two first support columns 122 adjacent to each other in the circumferential direction of the first carrier plate 121B among the first carrier plates 121B. ing.

FIG. 8 is a perspective view of the periphery of the first carrier hole 124 provided in the first carrier plate 121A of this embodiment. FIG. 9 is a top view of the periphery of the first carrier hole 124 provided in the first carrier plate 121A of this embodiment.

Referring to FIGS. 8 and 9, the first recess 125 includes a bearing surface 125a arranged outside the end surface of the first carrier plate 121A on the side of the first accommodating portion 123 in the axial direction of the first carrier 120, A pair of side walls 125b extending in the axial direction of one carrier 120 are provided. The pair of side walls 125b are provided so as to be continuous with the end surface of the first carrier plate 121A on the first accommodating portion 123 side and the seat surface 125a.

The pair of side walls 125b each have a first portion 125c that extends arcuately so as to correspond to the outer shape of the first projecting portion 112A of the first planetary gear 110. As shown in FIG. The first portions 125c of the pair of side walls 125b are arranged coaxially with the first carrier hole 124. As shown in FIG.

The pair of side walls 125b are provided continuously with the first portion 125c and each include a second portion 125d extending parallel to each other from the first portion 125c toward the first opening 123a of the first carrier 120 . The pair of side walls 125b is provided continuously with the second portions 125d, and includes third portions 125e that are separated from each other toward the first opening 123a side of the first carrier 120 from the second portions 125d of the pair of side walls 125b.

The first carrier 120 of the present embodiment is configured to hold the first planetary gear 110 at a predetermined assembly position when the first planetary gear 110 is attached to the first carrier 120 . It has a first holding portion 128A that holds the projecting portion 112A. The predetermined assembly position means a position where the first planetary gear hole 113 of the first planetary gear 110 and the first carrier hole 124 of the first carrier plate 121A are aligned (two points in FIG. 9). see dashed line). The first holding portion 128A of this embodiment is constituted by the first portions 125c of the pair of side walls 125b of the first recess 125 provided in the first carrier plate 121A. The first portion 125c is formed in a substantially arc shape, and the first projecting portion 112A of the first planetary gear 110 is concentrically fitted at a predetermined assembly position. Accordingly, the first planetary gear 110 can be easily positioned without dropping inside the first carrier 120 .

In addition, the first carrier 120 of the present embodiment is configured to guide the first projecting portion 112A of the first planetary gear 110 to the first holding portion 128A so as to guide the first planetary gear 110 to the assembly position. It has a guide portion 129A. 129 A of 1st guide parts of this embodiment are comprised from the 2nd part 125d of a pair of side wall 125b of the 1st recessed part 125, and the 3rd part 125e. The pair of side walls 125b of the first concave portion 125 is an example of the regulation portion of the present invention. The third portion 125e of the pair of side walls 125b of the first recess 125 is an example of the introduction portion of the present invention.

The first carrier plate 121A of the present embodiment has a first carrier plate 121A inclined outward in the axial direction of the first carrier 120 toward the first opening 123a of the first carrier 120 at the outer peripheral edge of the first carrier plate 121A. It has an inclined portion 121a. In this embodiment, the first inclined portion 121a is formed in the region between the pair of sidewalls 125b of the first recess 125. As shown in FIG.

The configuration of the first recess 125 (shown in FIG. 7) provided in the first carrier plate 121B is the same as the configuration of the first recess 125 provided in the first carrier plate 121A, and the description thereof will be omitted.

Referring to FIG. 7 , the first carrier 120 of the present embodiment is designed to hold the first planetary gear 110 in a predetermined assembly position when the first planetary gear 110 is attached to the first carrier 120 . It has a first holding portion 128B that holds the first projecting portion 112B of the planetary gear 110 . The predetermined assembly position means a position where the first planetary gear hole 113 of the first planetary gear 110 and the first carrier hole 124 of the first carrier plate 121B are aligned. The first holding portion 128B of the present embodiment is configured by first portions 125c of a pair of side walls 125b of the first recess 125 provided in the first carrier plate 121B.

In addition, the first carrier 120 of the present embodiment has a first carrier 120 that guides the first projecting portion 112B of the first planetary gear 110 to the first holding portion 128B so as to guide the first planetary gear 110 to the assembly position. It has a guide portion 129B. The first guide portion 129B of this embodiment is composed of a second portion 125d and a third portion 125e of a pair of side walls 125b of the first recess 125 provided in the first carrier plate 121B. A pair of side walls 125b of the first recess 125 provided in the first carrier plate 121B is an example of the regulation portion of the present invention. The third portion 125e of the pair of side walls 125b of the first recess 125 provided in the first carrier plate 121B is an example of the introduction portion of the present invention.

[Structure of Second Carrier Unit]
The structure of the second carrier unit 202 will be described below. FIG. 10 is an exploded perspective view of the second carrier unit 202 as seen from the first reduction gear mechanism 100 (shown in FIG. 3). FIG. 11 is an exploded perspective view of the second carrier unit 202 according to this embodiment, viewed from the spindle 50 (shown in FIG. 2) side. 10 and 11, only one of the four second planetary gears 210 is shown and only one of the four second gear shafts 230 is shown.

10 and 11, the second gear shaft 230 is provided with a cylindrical second gear shaft body 231 and one end of the second gear shaft body 231. It has a second tapered portion 232 whose diameter decreases toward the outside in the direction. The second gear shaft 230 also has a second large diameter portion 233 provided at the other end of the second gear shaft main body 231 . The diameter of the second large diameter portion 233 is larger than the diameter of the second gear shaft main body 231 .

The second planetary gear 210 includes a second planetary gear body 211 formed with teeth, and substantially cylindrical second protrusions 212A and 212B provided to protrude from both sides of the second planetary gear body 211 in the axial direction. Prepare. The second planetary gear main body 211 and the second protrusions 212A and 212B are integrally formed. The second planetary gear main body 211 and the second protrusions 212A and 212B are arranged coaxially.

In addition, the second planetary gear 210 has a second planetary gear hole 213 that penetrates through the second planetary gear main body 211 and the second projections 212A and 212B.

The second projecting portions 212A and 212B are provided with tapered hole portions 214 provided so that the second planetary gear hole 213 widens outward in the axial direction of the second planetary gear 210 .

The second carrier 220 includes a pair of disc-shaped second carrier plates 221A and 221B, and four second supports 222 provided to connect the pair of second carrier plates 221A and 221B. The pair of second carrier plates 221A and 221B and the four second support columns 222 are integrally formed. The pair of second carrier plates 221A and 221B are arranged in parallel and coaxially with each other. The four second support columns 222 are arranged side by side at regular intervals in the circumferential direction of the second carrier plates 221A and 221B.

The second carrier 220 includes four second housings 223 that respectively house the second planetary gears 210 . The second housing portion 223 is composed of a pair of second carrier plates 221A and 221B and two second support columns 222 adjacent in the circumferential direction. The second housing portion 223 has a second opening 223 a provided on the side surface of the second carrier 220 . The second opening 223a of the second carrier 220 is defined by a pair of second carrier plates 221A and 221B and two second support columns 222 adjacent in the circumferential direction. As shown in FIG. 5 , the second planetary gears 210 are exposed from the second opening 223 a of the second carrier 220 when the second planetary gears 210 are attached to the second housing portion 223 .

Referring to FIG. 10, the second carrier plate 221A has four second carrier holes 224 through which the second gear shafts 230 are inserted. The four second carrier holes 224 are provided in the second carrier plate 221A between two second support columns 222 adjacent to each other in the circumferential direction of the second carrier plate 221A.

In addition, the second carrier plate 221A of the present embodiment has four second recesses 225 that are recessed in the plate thickness direction of the second carrier plate 221A from the end surface of the second carrier plate 221A on the side of the second housing portion 223. Prepare. The second recess 225 is provided around the second carrier hole 224 . Also, the four second recesses 225 are respectively provided between two second support columns 222 adjacent to each other in the circumferential direction of the second carrier plate 221A in the second carrier plate 221A.

In this embodiment, the second recess 225 provided in the second carrier plate 221A has the same configuration as the first recess 125 (shown in FIGS. 6 and 7) provided in the first carrier plates 121A and 121B. is doing.

Specifically, the second recessed portion 225 includes a seat surface 225a arranged outside the end surface of the second carrier plate 221A on the side of the second housing portion 223 in the axial direction of the second carrier 220, and a It includes a pair of axially extending sidewalls 225b. The pair of side walls 225b are provided so as to be continuous with the end surface of the second carrier plate 221A on the second housing portion 223 side and the seat surface 225a.

The pair of side walls 225b each have a first portion 225c that extends arcuately so as to correspond to the outer shape of the second projecting portion 212A of the second planetary gear 210. As shown in FIG. The first portions 225c of the pair of side walls 225b are arranged coaxially with the second carrier hole 224. As shown in FIG.

The pair of side walls 225b are provided continuously with the first portion 225c and each include a second portion 225d extending parallel to each other from the first portion 225c toward the second opening 223a of the second carrier 220 . The pair of side walls 225b is provided continuously with the second portions 225d, and includes third portions 225e that are separated from each other toward the second opening 223a side of the second carrier 220 from the second portions 225d of the pair of side walls 225b. The first portion 225c is formed in a substantially arc shape, and the second projecting portion 212A of the second planetary gear 210 is fitted concentrically at a predetermined assembly position. Thereby, the second planetary gear 210 can be easily positioned without dropping inside the second carrier 220 .

The second carrier plate 221A of the present embodiment has a second carrier plate 221A inclined outward in the axial direction of the second carrier 220 toward the second opening 223a of the second carrier 220 at the outer peripheral edge of the second carrier plate 221A. It has an inclined portion 221a. In this embodiment, the second inclined portion 221a is formed in the region between the pair of sidewalls 225b of the second recess 225. As shown in FIG.

The second carrier 220 of the present embodiment is configured to hold the second planetary gear 210 at a predetermined assembly position when the second planetary gear 210 is attached to the second carrier 220 . It has a second holding portion 228A that holds the projecting portion 212A. The predetermined assembly position means a position where the second planetary gear hole 213 of the second planetary gear 210 and the second carrier hole 224 of the second carrier plate 221A are aligned. The second holding portion 228A of the present embodiment is configured by first portions 225c of a pair of side walls 225b of the second recess 225 provided on the second carrier plate 221A.

In addition, the second carrier 220 of this embodiment guides the second projecting portion 212A of the second planetary gear 210 to the second holding portion 228A so as to guide the second planetary gear 210 to the assembly position. It has a guide portion 229A. The second guide portion 229A of this embodiment is composed of a second portion 225d and a third portion 225e of a pair of side walls 225b of the second recess 225 provided in the second carrier plate 221A. A pair of side walls 225b of the second concave portion 225 provided in the second carrier plate 221B is an example of the regulating portion of the present invention. The third portions 225e of the pair of sidewalls of the second recess 225 provided in the second carrier plate 221A are an example of the introduction portion of the present invention.

As shown in FIG. 11, the second carrier plate 221A has mounting holes 220a for mounting the output section 203 (shown in FIG. 5). The mounting hole 220a is provided so as to protrude from the second carrier 220 on the side opposite to the second accommodating portion 223 .

As shown in FIG. 10, the second carrier plate 221B of this embodiment includes the first output shaft 140 of the first reduction gear mechanism 100 and the connecting sun gear 103 (shown in FIG. 4) fixed to the first output shaft 140. ) is provided therethrough. Also, the second carrier plate 221B has a second carrier hole 224 through which the second gear shaft 230 is inserted. The second carrier hole 224 provided in the second carrier plate 221B is arranged coaxially with the second carrier hole 224 provided in the second carrier plate 221A.

Further, as shown in FIG. 11, the second carrier plate 221B of the present embodiment is provided so as to be recessed in the plate thickness direction of the second carrier plate 221B from the end surface of the second carrier plate 221B on the second housing portion 223 side. and four second recesses 225 . The second recess 225 is provided around the second carrier hole 224 . Also, the four second recesses 225 are respectively provided between two second support columns 222 adjacent to each other in the circumferential direction of the second carrier plate 221B in the second carrier plate 221B. In the present embodiment, the second recess 225 provided in the second carrier plate 221B has the same configuration as the second recess 225 provided in the second carrier plate 221A, and detailed description thereof will be omitted. .

The second carrier plate 221B of the present embodiment has a second carrier plate 221B inclined outward in the axial direction of the second carrier 220 toward the second opening 223a of the second carrier 220 at the outer peripheral edge of the second carrier plate 221B. It has an inclined portion 221a. In this embodiment, the second inclined portion 221a is formed in the region between the pair of sidewalls 225b of the second recess 225. As shown in FIG.

The second carrier 220 of the present embodiment is configured to hold the second planetary gear 210 at a predetermined assembly position when the second planetary gear 210 is attached to the second carrier 220 . It has a second holding portion 228B that holds the projecting portion 212B. The predetermined assembly position means a position where the second planetary gear hole 213 of the second planetary gear 210 and the second carrier hole 224 of the second carrier plate 221B are aligned. The second holding portion 228B of the present embodiment is configured by first portions 225c of a pair of side walls 225b of the second recess 225 provided on the second carrier plate 221B.

Further, the second carrier 220 of the present embodiment guides the second projecting portion 212B of the second planetary gear 210 to the second holding portion 228B so as to guide the second planetary gear 210 to the assembly position. It has a guide portion 229B. The second guide portion 229B of this embodiment is composed of a second portion 225d and a third portion 225e of a pair of side walls 225b of the second recess 225 provided in the second carrier plate 221B. A pair of side walls 225b of the second concave portion 225 provided in the second carrier plate 221B is an example of the regulating portion of the present invention. The third portion 225e of the pair of side walls 225b of the second recess 225 provided in the second carrier plate 221B is an example of the introduction portion of the present invention.

[Assembly of reduction gear mechanism]
The assembly of the first planetary gear 110 and the first carrier 120 will be described below. As shown in FIGS. 6 and 7, the first planetary gear 110 is inserted through the first opening 123a of the first carrier 120 (see the arrow in the drawing). When the first planetary gear 110 is inserted through the first opening 123a of the first carrier 120, the first projecting portion 112A of the first planetary gear 110 is guided to the first holding portion 128A by the first guiding portion 129A. Similarly, when the first planetary gear 110 is inserted through the first opening 123a of the first carrier 120, the first projecting portion 112B of the first planetary gear 110 is guided to the first holding portion 128B by the first guiding portion 129B. be. In other words, the first planetary gear 110 is guided by the first guide portions 129A and 129B and held at a predetermined assembly position. That is, the first planetary gear 110 has a first planetary gear hole 113, a first carrier hole 124 provided in the first carrier plate 121A, and a first carrier hole 124 provided in the first carrier plate 121B. It is held in the mated assembly position.

In a state where the first planetary gear 110 is held at a predetermined assembly position, the first gear shaft 130 is arranged in the first carrier hole 124 provided in the first carrier plate 121B, the first planetary gear hole 113, and the first planetary gear hole 113. It is inserted through the first carrier hole 124 provided in the carrier plate 121A. At this time, the first gear shaft 130 is positioned between the first carrier hole 124 provided in the first carrier plate 121A, the first planetary gear hole 113, and the first carrier hole 124 provided in the first carrier plate 121B. They are inserted in order (see arrows in the figure). At this time, the first large diameter portion 133 of the first gear shaft 130 is press-fitted into the first carrier hole 124 of the first carrier plate 121B. As a result, the first planetary gear 110 is assembled with the first carrier 120 .

The second planetary gear 210 is inserted through the second opening 223a of the second carrier 220, as shown in FIGS. When the second planetary gear 210 is inserted through the second opening 223a of the second carrier 220, the second projecting portion 212A of the second planetary gear 210 is guided to the second holding portion 228A by the second guiding portion 229A. Similarly, when the second planetary gear 210 is inserted through the second opening 223a of the second carrier 220, the second projecting portion 212B of the second planetary gear 210 is guided to the second holding portion 228B by the second guiding portion 229B. be. In other words, the second planetary gear 210 is guided by the second guide portions 229A and 129B and held at a predetermined assembly position. That is, the second planetary gear 210 has a second planetary gear hole 213, a second carrier hole 224 provided in the second carrier plate 221A, and a second carrier hole 224 provided in the second carrier plate 221B. It is held in the mated assembly position.

In a state where the second planetary gear 210 is held at a predetermined assembly position, the second gear shaft 230 is positioned in the second carrier hole 224 provided in the second carrier plate 221A, the second planetary gear hole 213, and the second planetary gear hole 213. It is inserted through the second carrier hole 224 provided in the carrier plate 221B. At this time, the second gear shaft 230 is positioned between the second carrier hole 224 provided in the second carrier plate 221B, the second planetary gear hole 213, and the second carrier hole 224 provided in the second carrier plate 221A. They are inserted in order (see arrows in the figure). At this time, the second large diameter portion 233 of the second gear shaft 230 is press-fitted into the second carrier hole 224 of the second carrier plate 221B. As a result, the second planetary gear 210 is assembled with the second carrier 220 .

According to this assembly structure of the gear mechanism, when the first planetary gear 110 is inserted from the first opening 123a of the first carrier 120 and assembled into the first accommodating portion 123 of the first carrier 120, the first carrier plate 121A , 121B, the first planetary gear 110 is held at a predetermined assembly position by the first holding portions 128A and 128B respectively provided. As a result, when the first gear shaft 130 is inserted into the first planetary gear hole 113 of the first planetary gear 110 and the first carrier hole 124 of the first carrier 120, the first planetary gear hole 113 and the first carrier are separated from each other. Since there is no need to adjust the position with respect to the hole 124, it is possible to suppress deterioration of workability during assembly.

Similarly, when the second planetary gear 210 is inserted through the second opening 223a of the second carrier 220 and assembled into the second accommodating portion 223 of the second carrier 220, the second carrier plates 221A and 221B provided on the second carrier plates 221A and 221B, respectively. The second planetary gear 210 is held at a predetermined assembly position by the two holding portions 228A and 228B. As a result, when the second gear shaft 230 is inserted into the second planetary gear hole 213 of the second planetary gear 210 and the second carrier hole 224 of the second carrier 220, the second planetary gear hole 213 and the second carrier can be inserted. Since there is no need to adjust the position with respect to the hole 224, it is possible to suppress deterioration of workability during assembly.

Further, when the first planetary gear 110 is inserted from the first opening 123a of the first carrier 120 and assembled into the first accommodating portion 123 of the first carrier 120, the first carrier plates 121A and 121B provided respectively on the first The guide portions 129A and 129B guide the first planetary gear 110 to a predetermined assembly position. As a result, the first planetary gear 110 can be easily positioned at the assembly position, so that deterioration of assembly workability can be suppressed.

Similarly, when the second planetary gear 210 is inserted through the second opening 223a of the second carrier 220 and assembled into the second accommodating portion 223 of the second carrier 220, the second carrier plates 221A and 221B provided on the second carrier plates 221A and 221B, respectively. The second planetary gear 210 is guided to a predetermined assembly position by the two guide portions 229A and 229B. As a result, the second planetary gear 210 can be easily positioned at the assembly position, thereby suppressing deterioration of assembly workability.

Also, the third portions 125e of the pair of side walls 125b of the first recess 125 forming the first guide portions 129A and 129B approach each other from the first opening 123a of the first carrier 120 toward the first holding portions 128A and 128B. It is designed to Therefore, when the first planetary gear 110 is inserted through the first opening 123a of the first carrier 120 and assembled into the first accommodating portion 123 of the first carrier 120, the first planetary gear 110 can be smoothly held by the first holding portion 128A. , 128B, it is possible to suppress deterioration of the assembling workability.

Similarly, the third portions 225e of the pair of side walls 225b of the second concave portion 225 that constitute the second guide portions 229A and 229B move toward the second holding portions 228A and 228B from the second opening 223a of the second carrier 220 toward the second holding portions 228A and 228B. arranged to be close. Therefore, when the second planetary gears 210 are inserted through the second opening 223a of the second carrier 220 and assembled into the second housing portion 223 of the second carrier 220, the second planetary gears 210 are smoothly held by the second holding portion 228A. , 228B, it is possible to suppress deterioration of the assembling workability.

The first carrier plates 121A and 121B each have a first inclined portion 121a inclined outward in the axial direction of the first carrier 120 toward the first opening 123a of the first carrier 120. The first opening 123a is larger than the case without the 1 inclined portion 121a. Therefore, when inserting the first planetary gear 110 into the first accommodating portion 123 through the first opening 123a, the first planetary gear 110 can be smoothly inserted, thereby suppressing a decrease in assembling workability.

In addition, since the second carrier plates 221A and 221B each have a second inclined portion 221a inclined outward in the axial direction of the second carrier 220 toward the second opening 223a of the second carrier 220, The second opening 223a is larger than when the second inclined portion 221a is not provided. Therefore, when the second planetary gears 210 are inserted into the second accommodating portion 223 through the second openings 223a, the second planetary gears 210 can be smoothly inserted, thereby suppressing deterioration of the assembling workability.

Further, since the first carrier plates 121A and 121B each have the first recesses 125, even if the grease applied to the first planetary gears 110 runs down from the first planetary gears 110, the grease will It accumulates in the 1 concave portion 125 . As a result, it is possible to prevent the grease applied to the first planetary gear 110 from adhering to other components.

In addition, since the second carrier plates 221A and 221B each have the second recesses 225, even if the grease applied to the second planetary gears 210 flows down from the second planetary gears 210, the grease will 2 It accumulates in the concave portion 225 . As a result, it is possible to prevent the grease applied to the second planetary gear 210 from adhering to other components.

According to this vehicle door opening/closing device 1, since it has the speed reduction mechanism 32, it is possible to suppress deterioration of workability during assembly.

(Second embodiment)
The deceleration mechanism 32 of the second embodiment is different in that the holding portion and the guide portion are not composed of the first concave portion 125 (shown in FIGS. 6 and 7) or the second concave portion 225 (shown in FIGS. 10 and 11). Except for this, it is the same as the first embodiment. In the third embodiment, the same reference numerals are given to the same components as in the first embodiment, and the description thereof will be omitted.

FIG. 12 is a perspective view of the periphery of the first carrier hole 124 provided in the first carrier plate 121A according to the second embodiment.

Referring to FIG. 12, the first carrier plate 121A has a pair of wall portions 425 protruding from the end surface of the first carrier plate 121A on the first accommodating portion 123 side. The pair of walls 425 are formed integrally with the first carrier plate 121A.

The pair of wall portions 425 each have a first portion 425a extending in an arc shape so as to correspond to the outer shape of the first projecting portion 112A of the first planetary gear 110 . A first portion 425 a of the pair of wall portions 425 is arranged coaxially with the first carrier hole 124 .

The pair of wall portions 425 are provided continuously with the first portion 425a and each include a second portion 425b extending parallel to each other from the first portion 425a toward the first opening 123a side of the first carrier 120 . The pair of wall portions 425 is provided continuously with the second portion 425b, and includes a third portion 425c that is spaced apart from the second portion 425b of the pair of wall portions 425 toward the first opening 123a side of the first carrier 120. .

The first carrier 120 of the present embodiment is configured to hold the first planetary gear 110 at a predetermined assembly position when the first planetary gear 110 is attached to the first carrier 120 . It has a first holding portion 128A that holds the projecting portion 112A. The predetermined assembly position means a position where the first planetary gear hole 113 of the first planetary gear 110 and the first carrier hole 124 of the first carrier plate 121A are aligned. The first holding portion 128A of the present embodiment is configured by first portions 425a of a pair of wall portions 425 provided on the first carrier plate 121A.

In addition, the first carrier 120 of the present embodiment is configured to guide the first projecting portion 112A of the first planetary gear 110 to the first holding portion 128A so as to guide the first planetary gear 110 to the assembly position. It has a guide portion 129A. 129 A of 1st guide parts of this embodiment are comprised from the 2nd part 425b of a pair of wall part 425, and the 3rd part 425c. The pair of wall portions 425 is an example of the regulation portion of the present invention. The third portion 425c of the pair of wall portions 425 is an example of the introduction portion of the present invention.

The first carrier plate 121B of this embodiment may have a wall portion 425 instead of the first recess 125 (shown in FIGS. 5 and 6). Also, the second carrier plates 221A and 221B may have wall portions 425 instead of the second recesses 225 (shown in FIGS. 10 and 11).

(Third embodiment)
In the speed reduction mechanism 32 of the third embodiment, the holding portion and the guide portion are not configured by the first recess 125 (shown in FIGS. 6 and 7) or the second recess 225 (shown in FIGS. 10 and 11). Except for this, it is the same as the first embodiment. In the third embodiment, the same reference numerals are given to the same components as in the first embodiment, and the description thereof will be omitted.

FIG. 13 is a perspective view of the periphery of the first carrier hole 124 provided in the first carrier plate 121A according to the third embodiment.

Referring to FIG. 13, the first carrier plate 121A has a pair of protrusion groups 525 that protrude from the end surface of the first carrier plate 121A on the first accommodating portion 123 side. Each of the pair of projection groups 525 is composed of a plurality of projections. A pair of protrusion groups 525 are formed integrally with the first carrier plate 121A.

Each of the pair of protrusion groups 525 has a first portion 525a in which a plurality of protrusions are arranged in an arc shape so as to correspond to the outer shape of the first protrusion 112A of the first planetary gear 110 . A first portion 525 a of the pair of projection groups 525 is arranged coaxially with the first carrier hole 124 .

A pair of projection group 525 is provided continuously with the first portion 525a, and a second portion 525b in which a plurality of projections are provided side by side from the first portion 525a toward the first opening 123a of the first carrier 120. are provided respectively. The second portions 525b of the pair of projection groups 525 are arranged parallel to each other. The pair of projection groups 525 is provided continuously with the second portions 525b, and includes third portions 525c that are separated from each other toward the first opening 123a side of the first carrier 120 from the second portions 525b of the pair of projection groups 525. . Each of the third portions 525c of the pair of protrusion groups 525 is composed of a plurality of protrusions.

The first carrier 120 of the present embodiment is configured to hold the first planetary gear 110 at a predetermined assembly position when the first planetary gear 110 is attached to the first carrier 120 . It has a first holding portion 128A that holds the projecting portion 112A. The predetermined assembly position means a position where the first planetary gear hole 113 of the first planetary gear 110 and the first carrier hole 124 of the first carrier plate 121A are aligned. The first holding portion 128A of the present embodiment is configured by first portions 525a of a pair of projection groups 525 provided on the first carrier plate 121A.

In addition, the first carrier 120 of the present embodiment is configured to guide the first projecting portion 112A of the first planetary gear 110 to the first holding portion 128A so as to guide the first planetary gear 110 to the assembly position. It has a guide portion 129A. 129 A of 1st guide parts of this embodiment are comprised from the 2nd part 525b of a pair of protrusion group 525, and the 3rd part 525c. A pair of protrusion groups 525 is an example of the regulation part of the present invention. The third portion 525c of the pair of protrusion groups 525 is an example of the introduction portion of the present invention.

The first carrier plate 121B of this embodiment may have a group of protrusions 525 instead of the first recesses 125 (shown in FIGS. 5 and 6). Also, the second carrier plates 221A and 221B may have a group of protrusions 525 instead of the second recesses 225 (shown in FIGS. 10 and 11).

The vehicle door opening/closing device 1 of the present invention is not limited to the configuration of the above embodiment, and various modifications are possible.

For example, the planetary gear mechanism is not limited to the reduction gear mechanism of the above embodiment, and may be applied to a speed increasing gear mechanism.

Reference Signs List 1 vehicle door opening/closing device 2 vehicle 2a door 2b body 10 first housing 11 accommodating portion 12 cover portion 13 shaft end member 14 bearing 15 mounting member 20 second housing 21 shaft end member 22 coil spring 30 motor drive mechanism 31 electric motor 31a Output shaft 31b Mounting portion 31c Engaging hole 32 Reduction mechanism 33 Sun gear 40 Spindle drive mechanism 50 Spindle 50a Thread groove 50b Base end 60 Spindle nut 70 Push rod 80 Guide pipe 100 First reduction gear mechanism 101 First case 101a First Internal gear 101b Engagement pawl 101c Engagement pawl 101d Insertion hole 102 First carrier unit 103 Sun gear for connection 110 First planetary gear 111 First planetary gear main body 112A, 112B First protrusion 113 First planetary gear hole 114 Taper hole 120 first carrier 121A, 121B first carrier plate 121a first inclined portion 122 first support 123 first accommodating portion 123a first opening 124 first carrier hole 125 first recess 125a seat surface 125b side wall 125c first portion 125d Second portion 125e Third portion 126 First mounting portion 127 First insertion hole 128A, 128B First holding portion 129A, 129B First guide portion 130 First gear shaft 131 First gear shaft body 132 First tapered portion 133 First Large Diameter Part 140 First Output Shaft 200 Second Reduction Gear Mechanism 201 Second Case 201a Second Internal Gear 201b Insertion Hole 202 Second Carrier Unit 203 Output Portion 210 Second Planetary Gear 211 Second Planetary Gear Body 212A, 212B 2 projecting portion 213 second planetary gear hole 214 tapered hole portion 220 second carrier 220a mounting hole 221A, 221B second carrier plate 221a second inclined portion 222 second support 223 second accommodating portion 223a second opening 224 second carrier hole 225 second recess 226 second insertion hole 228A, 228B second holding portion 229A, 229B second guide portion 230 second gear shaft 231 second gear shaft main body 232 second tapered portion 233 second large diameter portion 240 second output shaft 300 upper case 301 spin 302 engagement hole 425 wall portion 425a first portion 425b second portion 425c third portion 525 projection group 525a first portion 525b second portion 525c third portion

Claims (8)

sun gear and
a planetary gear meshing with the sun gear;
a case having an internal gear meshing with the planetary gear;
a carrier that is accommodated in the case, supports the planetary gear so that it can rotate freely and revolve around the sun gear, and rotates in conjunction with the revolution of the planetary gear with respect to the sun gear; An assembly structure,
The planetary gear is
a planetary gear hole provided along the rotation center of the planetary gear;
a projecting portion projecting from an axial end of the planetary gear,
The carrier is
an accommodating portion that accommodates the planetary gear and has an opening provided in the carrier;
a gear shaft inserted through the planetary gear hole of the planetary gear and supporting the planetary gear;
a carrier plate forming part of the accommodating portion and provided with a carrier hole through which the gear shaft is inserted;
Provided on an end surface of the carrier plate facing the accommodating portion, the planetary gear hole of the planetary gear and the carrier hole of the carrier are aligned when the planetary gear is inserted through the opening and assembled to the carrier. a holding portion that holds the protruding portion of the planetary gear so as to hold the planetary gear in the mated assembly position;
With the planetary gear held at the assembly position, the gear shaft is inserted through the carrier hole of the carrier and the planetary gear hole of the planetary gear, whereby the planetary gear is attached to the carrier. Assembly structure of the gear mechanism to be assembled. 2. The carrier according to claim 1, wherein said carrier includes a guide portion provided on said carrier plate for guiding said projecting portion of said planetary gear to said holding portion so as to guide said planetary gear to said assembly position. Assembly structure of the gear mechanism. The guide portion includes a pair of restricting portions provided from the opening of the carrier toward the holding portion to restrict movement of the protruding portion of the planetary gear,
3. The assembly structure of the gear mechanism according to claim 2, wherein said pair of restricting portions has introduction portions provided so as to be adjacent to each other from said opening of said carrier toward said holding portion. 4. The carrier plate according to any one of claims 1 to 3, wherein the carrier plate has a slanted portion at the outer peripheral edge of the carrier plate, the slanted portion sloping outward in the axial direction of the carrier toward the opening of the carrier. Assembly structure of the described gear mechanism. The assembly structure of the gear mechanism according to any one of claims 1 to 4, wherein the holding portion is provided so as to be recessed from an end surface of the carrier plate facing the accommodating portion. The assembly structure of the gear mechanism according to any one of claims 1 to 4, wherein said holding portion has a plurality of projections erected on said carrier plate. The assembly structure of the gear mechanism according to any one of claims 1 to 4, wherein the holding portion has a wall portion erected on the carrier plate. a motor drive mechanism having an electric motor and a deceleration mechanism for decelerating the rotation of the electric motor;
a first housing that houses the motor drive mechanism;
a spindle drive mechanism connected to the motor drive mechanism;
a second housing coaxially arranged with respect to said first housing and moved relative to said first housing by said spindle drive mechanism;
The speed reduction mechanism has a plurality of gear mechanisms,
at least one of the plurality of gear mechanisms,
sun gear and
a planetary gear meshing with the sun gear;
a case having an internal gear meshing with the planetary gear;
a substantially cylindrical carrier that is accommodated in the case, supports the planetary gear so that it can rotate freely and revolve around the sun gear, and rotates in conjunction with the revolution of the planetary gear with respect to the sun gear; prepared,
The planetary gear is
a planetary gear hole provided along the rotation center of the planetary gear;
a projecting portion projecting from an axial end of the planetary gear,
The carrier is
an accommodating portion that accommodates the planetary gear and has an opening provided on a side surface of the carrier;
a gear shaft inserted through the planetary gear hole of the planetary gear and supporting the planetary gear;
a carrier plate forming part of the accommodating portion and provided with a carrier hole through which the gear shaft is inserted;
Provided on an end surface of the carrier plate facing the accommodating portion, the planetary gear hole of the planetary gear and the carrier hole of the carrier are aligned when the planetary gear is inserted through the opening and assembled to the carrier. a holding portion that holds the protruding portion of the planetary gear so as to hold the planetary gear in the mated assembly position;
With the planetary gear held at the assembly position, the gear shaft is inserted through the carrier hole of the carrier and the planetary gear hole of the planetary gear, whereby the planetary gear is attached to the carrier. Vehicle door opening and closing device to be assembled.

Images