JP2011169429A - Driving device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately engage a plurality of transmission teeth of a transmission member with a plurality of driving teeth of a driving member. <P>SOLUTION: The driving device is adapted to bring a driven clutch 68 close to a driving clutch 62 by the operation of a switch to thereby engage a plurality of driven teeth 72 of the driven clutch 68 with the plurality of driving teeth 66 of the driving clutch 62, thus transmitting a driving force to the driven clutch 68 from the driving clutch 62. In the driving clutch 62, the height of the single driving tooth 66H is higher than that of all other driving teeth 66, while in the driven clutch 68, the height of all the driven teeth 72 is the same. Consequently, when the driven teeth 72 face the driving teeth 66 in the case of bringing the driven clutch 68 close to the driving clutch 62, the single driven tooth 72 is brought into contact with the single driving tooth 66H to rotate the driven clutch 68 and the driving clutch 62 relatively. The plurality of driven teeth 72 can thereby be appropriately meshed with the plurality of driving teeth 66. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle drive device that is driven by a drive mechanism provided in a vehicle to which a drive force is transmitted.

  In the image forming apparatus described in Patent Document 1 below, a plurality of convex portions are provided on each of the driving side coupling and the driven side coupling, and the driving side coupling and the driven side coupling mesh with each other, thereby driving the driving side coupling. The rotational driving force of the coupling is transmitted to the driven side coupling.

JP 2001-228748 A

  However, in this image forming apparatus, each convex part of the driving side coupling and each convex part of the driven side coupling are set to the same height, and the tip part is formed in a pyramid shape.

  For this reason, when the driving side coupling and the driven side coupling are brought close to each other and engaged with each other, the tip portions of the plurality of convex portions of the driving side coupling come into contact with the tip portions of the plurality of convex portions of the driven side coupling. The driven side coupling exerts a rotational force on one side in the circumferential direction with respect to the driving side coupling by contact between the leading end portion of one convex portion of the driving side coupling and the leading end portion of one convex portion of the driven side coupling. On the other hand, the driven side coupling rotates to the other side in the circumferential direction with respect to the driving side coupling due to the contact between the tip of the other convex part of the driving side coupling and the tip of the other convex part of the driven side coupling. It is understood that it may receive power.

  In this case, there is a possibility that the driving side coupling and the driven side coupling cannot be rotated relative to each other, and the driving side coupling and the driven side coupling cannot be engaged with each other.

  An object of the present invention is to obtain a vehicle drive device in which a plurality of transmission teeth of a transmission member and a plurality of drive teeth of a drive member can be appropriately engaged in consideration of the above facts.

  The vehicle drive device according to claim 1 is provided in the vehicle and is driven by being transmitted with a driving force, and a plurality of transmission teeth are provided to transmit the driving force. A transmission member for transmitting a driving force to the mechanism and a plurality of driving teeth are provided, and a plurality of the transmission teeth and a plurality of the driving teeth are engaged by approaching the transmission member to transmit the driving force. A drive member configured to be able to transmit to the member, and to allow the single transmission tooth and the single drive tooth to come into contact with each other when approaching the transmission member.

  In the vehicle drive device according to claim 1, the transmission member is provided with a plurality of transmission teeth, the drive member is provided with a plurality of drive teeth, and the transmission member and the drive member are approached, The plurality of transmission teeth and the plurality of drive teeth are engaged, so that the drive member can transmit the driving force to the transmission member. Furthermore, when the transmission member transmits the driving force, the transmission member transmits the driving force to the driving mechanism, and the driving mechanism is driven.

  Here, when the transmission member and the drive member are brought close to each other, the single transmission tooth and the single drive tooth can be brought into contact with each other. For this reason, the contact between the single transmission tooth and the single drive tooth allows the transmission member and the drive member to move relative to each other, and the plurality of transmission teeth and the plurality of drive teeth can be appropriately engaged.

  A vehicle drive device according to a second aspect is the vehicle drive device according to the first aspect, wherein the vehicle drive device is provided on at least one of the single transmission teeth and the single drive teeth, and the drive device is driven in a driving direction. An inclined surface is provided.

  In the vehicle drive device according to the second aspect, the inclined surface provided on at least one of the single transmission tooth and the single drive tooth is inclined with respect to the drive direction of the drive member. For this reason, when the transmission member and the drive member are brought close to each other and the single transmission tooth and the single drive tooth are brought into contact with each other, the transmission member and the drive member can be appropriately moved relative to each other by the inclined surface. The teeth and the plurality of drive teeth can be more appropriately engaged.

  The vehicle drive device according to claim 3 is the vehicle drive device according to claim 1 or 2, wherein the drive member is not driven when the transmission member and the drive member are approached.

  In the vehicle drive device according to the third aspect, the drive member is not driven when the transmission member and the drive member are approached. For this reason, even if a single transmission tooth and a single drive tooth contact, it can suppress that a single transmission tooth and a single drive tooth damage.

  As described above, in the vehicle drive device according to the first aspect, when the transmission member and the drive member are approached, the single transmission tooth and the single drive tooth are brought into contact with each other. The transmission teeth and the plurality of drive teeth can be appropriately engaged.

  In the vehicle drive device according to claim 2, since the inclined surface provided on at least one of the single transmission tooth and the single drive tooth is inclined with respect to the driving direction of the drive member, the plurality of transmission teeth and the plurality of transmission teeth are provided. Can be more appropriately engaged with the drive teeth.

  In the vehicle drive device according to the third aspect, since the drive member is not driven when the transmission member and the drive member are approached, it is possible to suppress damage of the single transmission tooth and the single drive tooth.

It is the perspective view seen from the front diagonal left which shows the principal part of the sheet | seat which concerns on embodiment of this invention. It is the perspective view seen from the front diagonal right side which shows the drive device of the sheet | seat which concerns on embodiment of this invention. It is the disassembled perspective view seen from the front diagonal right which shows the drive device of the sheet concerning an embodiment of the invention. It is the disassembled perspective view seen from the front diagonal right which shows the drive clutch, driven clutch, etc. in the drive device of the sheet concerning an embodiment of the invention. FIG. 3 is a side view showing a drive clutch, a driven clutch, a cam, and the like in the seat drive device according to the embodiment of the present invention. (A)-(D) are the expanded views which show the meshing condition of the drive clutch and driven clutch in the seat drive device which concerns on embodiment of this invention, (A) is a figure which shows the said meshing before. Yes, (B) is a diagram showing the initial meshing state, (C) is a diagram showing the late meshing phase, and (D) is a diagram showing the meshing state. (A)-(C) is the schematic seen from the left which shows the press condition by the cam of three driven clutches in the seat drive device concerning an embodiment of the invention, and (A) is a front side. It is a figure which shows the press condition by the cam of a driven clutch, (B) is a figure which shows the press condition by the cam of an upper driven clutch, (C) shows the press condition by the cam of a rear driven clutch. FIG.

  FIG. 1 is a perspective view of a main part of a seat 12 (power seat) to which a driving device 10 (vehicle driving device) according to an embodiment of the present invention is applied, as viewed obliquely from above. . In the drawing, the front of the seat 12 is indicated by an arrow FR, the right side of the seat 12 is indicated by an arrow RH, and the upper side of the seat 12 is indicated by an arrow UP.

  The seat 12 according to the present embodiment is installed in a passenger compartment of a vehicle (automobile), and the seat 12 is directed frontward, rightward, and upward to the front, rightward, and upward, respectively.

  As shown in FIG. 1, a seat cushion 14 is provided at the lower part of the seat 12, and the seat cushion 14 is arranged substantially horizontally so as to be able to support the lower half of the occupant seated on the seat 12 from below. ing. A cushion frame 16 having a rectangular frame shape as a skeleton member (frame) is provided inside the seat cushion 14. The cushion frame 16 is made of metal and reinforces the seat cushion 14.

  A seat back 18 is provided at the rear part of the seat 12, and the seat back 18 stands up from the rear end of the seat cushion 14 so that the upper body of the occupant seated on the seat 12 can be supported from the rear side. ing. A back frame 20 having a rectangular frame shape as a skeleton member (frame) is provided inside the seat back 18, and the back frame 20 is made of metal to reinforce the seat back 18.

  A reclining mechanism 22 as a drive mechanism (tilting means) is provided between the rear end of the cushion frame 16 and the lower end of the back frame 20, and the reclining mechanism 22 is driven to The back frame 20 is tilted (driven) in the front-rear direction. Thereby, the seat back 18 is tilted (driven) in the front-rear direction with respect to the seat cushion 14, and the tilt angle of the seat back 18 in the front-rear direction with respect to the seat cushion 14 is adjusted.

  A metal slide frame 24 is provided below the right end and the left end of the cushion frame 16. An elevating mechanism 28 as a drive mechanism (vertical moving means) is provided between the cushion frame 16 and the slide frame 24, and the cushion frame 16 is moved relative to the slide frame 24 by driving the elevating mechanism 28. It is moved (driven) in the vertical direction to adjust the vertical position of the seat 12 (the seat cushion 14 and the seat back 18).

  A metal slide rail 30 is provided below each slide frame 24. Between the slide frame 24 and the slide rail 30, a slide mechanism 32 is provided as a drive mechanism (front / rear moving means), and the slide frame 24 is moved relative to the slide rail 30 by driving the slide mechanism 32. By sliding (driving) in the front-rear direction, the position in the front-rear direction of the seat 12 (the seat cushion 14 and the seat back 18) is adjusted.

  A clutch unit 34 as a switching means is fixed inside the cushion frame 16.

  As shown in FIGS. 2 and 3, a container-like first case 36 is provided on the outer periphery of the clutch unit 34, and the inside of the first case 36 is opened to the left side. A plate-like second case 38 is provided on the left side of the first case 36, and the second case 38 is fixed to the first case 36 and closes the inside of the first case 36. A rack chamber 40 is formed in the second case 38, and the inside of the rack chamber 40 is opened to the right side. A plate-like third case 42 is provided between the first case 36 and the second case 38. The third case 42 is fixed to the second case 38 and closes the inside of the rack chamber 40. ing.

  A motor bracket 44 having a substantially U-shaped cross section is fixed to the outer side of the right wall of the first case 36, and a motor 46 as driving means is fixed to the right side of the motor bracket 44. The output shaft 46A of the motor 46 passes through the motor bracket 44 and the right wall of the first case 36 and is inserted into the first case 36. When the motor 46 is driven, the output shaft 46A rotates. Is done.

  A motor gear 48 is disposed inside the first case 36, and the motor gear 48 is coupled to the output shaft 46 </ b> A of the motor 46. Thereby, the output shaft 46A is rotated, whereby the motor gear 48 is rotated integrally with the output shaft 46A.

  A gear holder 50 is fixed inside the first case 36. An idle gear 52 as a main drive member is rotatably supported between the first case 36 and the gear holder 50, and the right side portion of the idle gear 52 has a larger diameter than the left side portion of the idle gear 52. Has been. The outer periphery of the right side portion (large diameter portion) of the idle gear 52 is meshed with the outer periphery of the motor gear 48, and the idle gear 52 is rotated by rotating the motor gear 48.

  Three clutch mechanisms 54 as switching mechanisms are provided inside the first case 36, and the three clutch mechanisms 54 are arranged on the front side (one side), the upper side, and the rear side (other side) of the idle gear 52. )).

  The clutch mechanism 54 is provided with a substantially circular shaft-shaped clutch shaft 56, and the clutch shaft 56 is rotatably supported inside the first case 36.

  Three substantially cylindrical cable holders 58 are fixed to the outside of the right wall of the first case 36. A cable 60 (see FIG. 1) as a transmission means is inserted and held in the cable holder 58, and the cable 60 passes through the right wall of the first case 36 and is connected to the clutch shaft 56.

  As shown in FIG. 1, the cable 60 connected to the front clutch shaft 56 is connected to the reclining mechanism 22, and the reclining mechanism 22 is connected via the cable 60 by rotating the front clutch shaft 56. Driven by driving force transmitted. The cable 60 connected to the upper clutch shaft 56 is connected to the lifting mechanism 28, and the driving force is transmitted to the lifting mechanism 28 via the cable 60 by rotating the upper clutch shaft 56. Driven. The cable 60 connected to the rear clutch shaft 56 is connected to the slide mechanism 32, and the slide mechanism 32 transmits a driving force via the cable 60 by rotating the rear clutch shaft 56. To be driven.

  As shown in FIG. 4, a locking portion 56 </ b> A having a substantially elliptical outer peripheral cross section (noncircular outer peripheral cross section) is formed near the left end of the clutch shaft 56, and the maximum diameter of the locking portion 56 </ b> A is the clutch shaft 56. It is larger than the diameter of other parts.

  A drive clutch 62 as a drive member (accessed member) is rotatably supported on the clutch shaft 56 on the right side of the locking portion 56A. The clutch shaft 56 is inserted into a substantially annular bush 64 on both sides of the drive clutch 62, and movement of the drive clutch 62 to both sides in the axial direction of the clutch shaft 56 is locked by the pair of bushes 64.

  On the left surface of the drive clutch 62, a plurality of substantially rectangular columnar drive teeth 66 are formed on the entire circumference, and the plurality of drive teeth 66 are arranged at equal intervals along the circumferential direction of the drive clutch 62. Yes.

  As shown in FIGS. 6A to 6D, the width of the gap between the drive teeth 66 in the circumferential direction of the drive clutch 62 is made larger than the width of the drive teeth 66 in the circumferential direction of the drive clutch 62. The tip of the drive tooth 66 has a triangular cross section and is formed with a pair of inclined surfaces 66A. The inclined surface 66A on one side in the circumferential direction of the drive clutch 62 is driven toward the one side in the circumferential direction of the drive clutch 62. The inclined surface 66A on the other side in the circumferential direction of the drive clutch 62 is inclined in the direction toward the proximal side of the drive clutch 62 as it is inclined toward the other side in the circumferential direction of the drive clutch 62. Yes. The height of the plurality of drive teeth 66 (projecting dimension from the left surface of the drive clutch 62 to the left) is the same in all the drive teeth 66 other than a single drive tooth 66 (hereinafter referred to as “drive tooth 66H”). The height of the single drive tooth 66H is higher than the heights of all the other drive teeth 66 by a predetermined dimension (for example, 0.3 mm).

  As shown in FIG. 3, the outer periphery of each drive clutch 62 is meshed with the outer periphery of the left side portion (small diameter portion) of the idle gear 52, and each drive clutch 62 is rotated by rotating the idle gear 52. .

  As shown in FIG. 4, the clutch shaft 56 supports a driven clutch 68 as a transmission member (approaching member) at the locking portion 56 </ b> A, and the driven clutch 68 can rotate integrally with the clutch shaft 56. At the same time, the clutch shaft 56 can be moved (slid) in the axial direction.

  As shown in FIG. 5, a compression coil spring 70 as an urging means is bridged between the clutch shaft 56 and the driven clutch 68, and the driven clutch 68 is attached to the left by the compression coil spring 70. And is locked at a position separated from the drive clutch 62 to the left side. The left end of the driven clutch 68 has a trapezoidal cross section, and the peripheral portion of the left end of the driven clutch 68 is inclined in the direction toward the left as it goes radially inward of the driven clutch 68.

  On the right surface of the driven clutch 68, a plurality of substantially rectangular columnar driven teeth 72 as transmission teeth are formed on the entire circumference, and the plurality of driven teeth 72 are equally spaced along the circumferential direction of the driven clutch 68. Is arranged. The diameter of the driven tooth 72 forming portion of the driven clutch 68 is made the same as the diameter of the driving tooth 66 forming portion of the driving clutch 62, and the number of the driven teeth 72 of the driven clutch 68 is the same as the driving tooth 66 of the driving clutch 62. Is the same as the number of

  As shown in FIGS. 6A to 6D, the width of the driven tooth 72 in the circumferential direction of the driven clutch 68 and the width of the gap between the driven teeth 72 in the circumferential direction of the driven clutch 68 are respectively set to the driving clutch 62 of the driving tooth 66. The width in the circumferential direction and the width of the gap between the drive teeth 66 in the circumferential direction of the drive clutch 62 are the same, and the width of the gap between the driven teeth 72 in the circumferential direction of the driven clutch 68 is the driven clutch 68 of the driven tooth 72. It is larger than the width in the circumferential direction. The tip of the driven tooth 72 has a triangular cross-section and is formed with a pair of inclined surfaces 72A. The inclined surface 72A on the circumferential side of the driven clutch 68 is driven toward the circumferential side of the driven clutch 68. The inclined surface 72A on the other side in the circumferential direction of the driven clutch 68 is inclined in the direction toward the proximal side of the driven tooth 68 as it moves toward the other side in the circumferential direction of the driven clutch 68. Yes. Further, the heights of all the driven teeth 72 (projecting dimensions from the right surface of the driven clutch 68 to the right) are the same.

  As shown in FIG. 3, a substantially circular cam shaft 74 constituting a selector is provided inside the first case 36 on the left side of the gear holder 50, and the cam shaft 74 is coaxial with the idle gear 52. Is arranged. The left portion of the camshaft 74 is inserted into the lower portion of the rack chamber 40 of the second case 38 through the third case 42 and supported by the second case 38. The camshaft 74 is rotatable. ing. At the right end of the camshaft 74, a peripheral portion of a substantially disc-shaped cam 76 as a switching member constituting the selector is fixed, and the cam 76 rotates around the camshaft 74 by rotating the camshaft 74. Is rotated to the left side of the driven clutch 68 of each clutch mechanism 54.

  As shown in FIG. 5, the right end of the cam 76 has a trapezoidal cross section, and the peripheral portion of the right end of the cam 76 is inclined in the direction toward the right side as it goes inward in the radial direction of the cam 76. When the cam 76 is rotated to the left side of the driven clutch 68, the right end peripheral portion of the cam 76 presses the left end peripheral portion of the driven clutch 68, so that the driven clutch 68 receives the biasing force of the compression coil spring 70. Accordingly, it is moved to the right and approaches the drive clutch 62. Thus, when the cam 76 is rotated to the left side of the driven clutch 68, the plurality of driven teeth 72 of the driven clutch 68 are engaged (engaged) with the plurality of drive teeth 66 of the drive clutch 62.

  As shown in FIG. 6D, when the plurality of driven teeth 72 are engaged with the plurality of drive teeth 66, the tip (top) of each driven tooth 72 is the bottom surface of the gap between the drive teeth 66. ) And the tip (top) of each drive tooth 66 is separated from the driven clutch 68 (the bottom surface of the gap between the driven teeth 72).

  As shown in FIG. 3, a rack 78 is slidably accommodated in the rack chamber 40 of the second case 38. The left portion of the camshaft 74 is engaged with the lower portion of the rack 78, and the camshaft 74 is rotated by sliding the rack 78.

  As shown in FIGS. 1 to 3, a switch 80 is disposed on the left side of the clutch unit 34 (left side of the second case 38). The switch 80 is attached to the outside of the left end of the cushion frame 16, and the left side portion of the switch 80 is exposed to the outside of the seat cushion 14.

  On the left side of the switch 80, a substantially cylindrical rotating part 82 (dial part) as an operation part is rotatably provided. The rotating part 82 includes a “reclining position”, an “elevating position” and a “sliding position”. ”Can be rotated.

  A circular rotation shaft 84 is coupled to the rotation portion 82 so as to be integrally rotatable at the center axis position, and the rotation shaft 84 extends rightward with respect to the switch 80. The rotating shaft 84 passes through the left end of the cushion frame 16 and is inserted into the cushion frame 16, and the right portion of the rotating shaft 84 passes through the second case 38 and is above the rack chamber 40 of the second case 38. And is supported by the third case 42. The right portion of the rotation shaft 84 is engaged with the upper portion of the rack 78 of the rack chamber 40, and the rotation portion 82 is rotated to rotate the rotation shaft 84, so that the rack 78 is slid. For this reason, the cam shaft 74 is rotated and the cam 76 is rotated.

  As shown in FIG. 7A, when the rotating portion 82 is rotated to the “reclining position”, the cam 76 is rotated to the left side of the driven clutch 68 of the front clutch mechanism 54. As shown in FIG. 7B, when the rotating portion 82 is rotated to the “elevating position”, the cam 76 is rotated to the left side of the driven clutch 68 of the upper clutch mechanism 54. As shown in FIG. 7C, when the rotating portion 82 is rotated to the “sliding position”, the cam 76 is rotated to the left side of the driven clutch 68 of the rear clutch mechanism 54.

  As shown in FIG. 1, a substantially rectangular column-shaped slide portion 86 as an operation portion is slidably held on the left side of the rotation portion 82, and the slide portion 86 is located on the opposite side from the “initial position”. A slide operation is made possible at “rotation position” and “reverse rotation position”.

  The slide part 86 is electrically connected to the motor 46. When the slide part 86 is slid to the “forward rotation position” or “reverse rotation position”, the motor 46 is driven forward or backward, respectively. Thus, the output shaft 46A of the motor 46 is rotated forward or backward.

  Next, the operation and effect of the present embodiment will be described.

  In the seat 12 having the above-described configuration, the rotating shaft 84 is rotated integrally with the rotating portion 82 by rotating the rotating portion 82 of the switch 80 to the “reclining position”, “lifting position”, or “sliding position”. The rack 78 is slid. For this reason, the cam shaft 74 is rotated, and the cam 76 is rotated to the left side of the driven clutch 68 of the front, upper or rear clutch mechanism 54, respectively.

  When the cam 76 is rotated to the left side of the driven clutch 68, the right end peripheral portion of the cam 76 presses the left end peripheral portion of the driven clutch 68, so that the driven clutch 68 receives the biasing force of the compression coil spring 70. Accordingly, it is moved to the right and approaches the drive clutch 62. Thereby, when the cam 76 is rotated to the left side of the driven clutch 68, the plurality of driven teeth 72 of the driven clutch 68 are engaged with the plurality of drive teeth 66 of the drive clutch 62.

  Further, when the slide portion 86 of the switch 80 is slid to the “forward rotation position” or “reverse rotation position”, the motor 46 is driven forward or backward, and the output shaft 46A of the motor 46 is rotated forward. Or it is reversed. Therefore, when the motor gear 48 is rotated forward or backward integrally with the output shaft 46A, the idle gear 52 is rotated forward or backward, and the drive clutch 62 of each clutch mechanism 54 is rotated forward or backward. Is done.

  When the rotating portion 82 of the switch 80 is rotated to the “reclining position”, the plurality of driven teeth 72 of the driven clutch 68 are engaged with the plurality of driving teeth 66 of the driving clutch 62 in the front clutch mechanism 54. Thus, the driven clutch 68 is rotated forward or backward by the drive clutch 62 (a driving force is transmitted from the drive clutch 62), and the clutch shaft 56 is rotated forward or reverse. As a result, the reclining mechanism 22 receives a driving force transmitted through the cable 60 and is driven forward or backward, whereby the seat back 18 is tilted forward or rearward with respect to the seat cushion 14, and the seat cushion 14 is moved. The tilt angle of the seat back 18 in the front-rear direction is adjusted.

  When the rotary portion 82 of the switch 80 is rotated to the “lifting position”, the plurality of driven teeth 72 of the driven clutch 68 are engaged with the plurality of drive teeth 66 of the drive clutch 62 in the upper clutch mechanism 54. Thus, the driven clutch 68 is rotated forward or backward by the drive clutch 62 (a driving force is transmitted from the drive clutch 62), and the clutch shaft 56 is rotated forward or reverse. As a result, the elevating mechanism 28 receives the driving force transmitted via the cable 60 and is driven forward or backward, whereby the cushion frame 16 is moved upward or downward with respect to the slide frame 24, and the seat 12 (seat The vertical position of the cushion 14 and the seat back 18) is adjusted.

  When the rotating portion 82 of the switch 80 is rotated to the “sliding position”, the plurality of driven teeth 72 of the driven clutch 68 are engaged with the plurality of driving teeth 66 of the driving clutch 62 in the rear clutch mechanism 54. Thus, the driven clutch 68 is rotated forward or reverse by the drive clutch 62 (a driving force is transmitted from the drive clutch 62), and the clutch shaft 56 is rotated forward or reverse. As a result, the slide mechanism 32 receives a driving force transmitted via the cable 60 and is driven forward or reverse, whereby the slide frame 24 is slid forward or rearward with respect to the slide rail 30 and the seat 12 (seat The front-rear direction positions of the cushion 14 and the seat back 18) are adjusted.

  Here, in the drive clutch 62 of the clutch mechanism 54, the height of the plurality of drive teeth 66 is the same in all the drive teeth 66 other than the single drive tooth 66H, and the height of the single drive tooth 66H. However, the height of the other drive teeth 66 is increased by a predetermined dimension. On the other hand, in the driven clutch 68 of the clutch mechanism 54, all the driven teeth 72 have the same height.

  For this reason, as shown in FIG. 6A, when the driven clutch 68 is moved to the right and approaches the drive clutch 62, the driven tooth 72 of the driven clutch 68 moves to the drive tooth 66 of the drive clutch 62 in the left-right direction. 6B, the single driven tooth 72 of the driven clutch 68 is brought into contact with the single drive tooth 66H of the drive clutch 62, and the single driven tooth 72 of the driven clutch 68 is contacted. The other driven teeth 72 are not in contact with the drive teeth 66 other than the single drive tooth 66H of the drive clutch 62. As a result, as shown in FIG. 6C, the single driven tooth 72 is guided (slided) on the inclined surface 66A of the single drive tooth 66H, or the inclined surface 72A of the single driven tooth 72 is applied. When at least one of the single drive teeth 66H is guided (slided), at least one of the driven clutch 68 and the drive clutch 62 is rotated, and the driven clutch 68 and the drive clutch 62 are relatively rotated. Therefore, as shown in FIG. 6D, each driven tooth 72 of the driven clutch 68 is inserted into the gap between the drive teeth 66 of the drive clutch 62, and each drive tooth 66 of the drive clutch 62 is connected to the driven clutch 68. The plurality of driven teeth 72 of the driven clutch 68 are engaged with the plurality of drive teeth 66 of the drive clutch 62 by being inserted into the gaps between the driven teeth 72.

  Thus, when the driven clutch 68 is moved to the right and approaches the drive clutch 62, even if the driven tooth 72 faces the drive tooth 66 in the left-right direction, the single driven tooth 72 is a single drive tooth. The plurality of driven teeth 72 can appropriately mesh with the plurality of drive teeth 66 by being brought into contact with 66H. For this reason, by rotating the rotating portion 82 of the switch 80, it is possible to suppress an increase in the operating force of the rotating portion 82 when the driven clutch 68 is brought close to and engaged with the drive clutch 62 by the rotation of the cam 76.

  Further, the tip end portion of the single drive tooth 66H of the drive clutch 62 has a triangular cross section to form a pair of inclined surfaces 66A. Moreover, the tip of each driven tooth 72 of the driven clutch 68 has a triangular cross section, and a pair of inclined surfaces 72A are formed. For this reason, when the single driven tooth 72 of the driven clutch 68 is brought into contact with the single drive tooth 66H of the drive clutch 62, the driven clutch 68 and the drive clutch 62 can be appropriately rotated relative to each other, and the plurality of driven teeth 72 are The plurality of drive teeth 66 can be meshed more appropriately.

  Further, when the rotating portion 82 of the switch 80 is rotated and the driven clutch 68 approaches the drive clutch 62, the slide portion 86 of the switch 80 is not slid and the drive clutch 62 is not rotated. . For this reason, even if the single driven tooth 72 of the driven clutch 68 is brought into contact with the single drive tooth 66H of the drive clutch 62, it is possible to prevent the single driven tooth 72 and the single drive tooth 66H from being damaged.

  Further, as shown in FIG. 6D, when the plurality of driven teeth 72 of the driven clutch 68 are engaged with the plurality of drive teeth 66 of the drive clutch 62, the tips (top portions) of the driven teeth 72 of the driven clutch 68 are obtained. ) Is separated from the drive clutch 62 (the bottom surface of the gap between the drive teeth 66), and the tip (top) of each drive tooth 66 of the drive clutch 62 is separated from the driven clutch 68 (the bottom surface of the gap between the driven teeth 72). Is done. For this reason, it can suppress that each driven tooth 72 of the driven clutch 68 and each drive tooth 66 of the drive clutch 62 are damaged.

  In the present embodiment, in order to make the height of the single drive tooth 66H of the drive clutch 62 higher than the height of all the other drive teeth 66, a part (top) of the single drive tooth 66H. It is good also as a structure which made only the height higher than the height of all the other drive teeth 66.

  Further, in the present embodiment, the height of the single drive tooth 66H of the drive clutch 62 is made higher than the heights of all the other drive teeth 66, and the height of all the driven teeth 72 of the driven clutch 68. However, as long as the driven clutch 68 approaches the drive clutch 62, the single driven tooth 72 of the driven clutch 68 may be in contact with the single drive tooth 66 of the drive clutch 62. . For example, the height of all the drive teeth 66 of the drive clutch 62 is made the same, and the height of the single driven tooth 72 of the driven clutch 68 is made higher than the height of all the other driven teeth 72. Also good. In this case, the height of only a part (top) of the single driven tooth 72 may be higher than the heights of all the other driven teeth 72.

  Further, in the present embodiment, the tip of the driving tooth 66 is formed in a triangular shape in cross section to form a pair of inclined surfaces 66A, and the tip of the driven tooth 72 is formed in a triangular shape in cross section to form a pair of inclined surfaces 72A. However, at least one of the distal end portion of the drive tooth 66 and the distal end portion of the driven tooth 72 may have a semicircular cross section to form a pair of curved inclined surfaces. In addition, at least one of the distal end portion of the driving tooth 66 and the distal end portion of the driven tooth 72 may be formed into a right-angled triangle shape or a quarter-circle shape to form one inclined surface or curved inclined surface.

  In the present embodiment, when the switch 80 is operated, the front portion of the seat cushion 14 is rotated in the vertical direction with respect to the rear portion, or at least a part (lower portion or the like) of the seat back 18 is moved in the front-rear direction. It is good also as a structure moved to.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. Needless to say, the scope of rights of the present invention is not limited to the above embodiment.

10. Drive device (vehicle drive device)
22 Reclining mechanism (drive mechanism)
28 Elevating mechanism (drive mechanism)
32 Slide mechanism (drive mechanism)
62 Drive clutch (drive member)
66 Drive teeth 66A Inclined surface 68 Driven clutch (transmission member)
72 Driven teeth (transmission teeth)
72A inclined surface

Claims (3)

A drive mechanism provided in the vehicle and driven by transmission of the driving force;
A transmission member provided with a plurality of transmission teeth and transmitting the driving force to the driving mechanism by transmitting the driving force;
A plurality of drive teeth are provided, and by approaching the transmission member, the plurality of transmission teeth and the plurality of drive teeth are engaged so that a driving force can be transmitted to the transmission member. A drive member in which the single transmission tooth and the single drive tooth are brought into contact with each other when approaching the member;
A vehicle drive device comprising:   The vehicle drive device according to claim 1, further comprising an inclined surface that is provided on at least one of the single transmission tooth and the single drive tooth and is inclined with respect to a drive direction of the drive member.   The vehicle drive device according to claim 1, wherein the drive member is not driven when the transmission member and the drive member are approached.

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