JP7003687B2 - Vehicle drive - Google Patents

Description

The present invention relates to a vehicle drive device.

As a conventional vehicle drive device, the one described in Patent Document 1 is known.

Conventionally, as a vehicle drive device, a continuously variable transmission described in Patent Document 1 is known. This continuously variable transmission has a parking lock mechanism. In the parking lock mechanism, a parking gear is provided on the secondary pulley, and the rotation of the parking gear is restricted by engaging the claw portion of the parking pole with the parking gear.

The parking pole is pushed up by a cam portion provided at the tip of the parking rod, and the claw portion meshes with the parking gear. The parking rod moves in the axial direction with the rotation of the manual shaft, so that the cam portion pushes up the parking pole.

The parking rod and the parking pole extend in a direction orthogonal to the axial direction of the secondary pulley, and are installed side by side in a direction orthogonal to the axial direction of the secondary pulley.

The parking pole swings around a rotation axis extending in the same direction as the axis of the secondary pulley, so that the claws swing between the meshing position where the claws mesh with the parking gear and the position where the claws separate from the parking gear. ..

Japanese Unexamined Patent Publication No. 2000-104827

In such a conventional parking lock mechanism, the parking rod and the parking pole extend in a direction orthogonal to the axial direction of the secondary pulley, and are installed side by side in a direction orthogonal to the axial direction of the secondary pulley.

As a result, it is necessary to secure a space for installing the parking rod and the parking pole, and the parking gear and the manual shaft are separated from each other in the direction orthogonal to the axial direction of the secondary pulley. Therefore, there is a possibility that the case of the transmission becomes large.

The present invention has been made by paying attention to the above circumstances, and provides a vehicle drive device capable of efficiently installing a parking lock mechanism inside a case and suppressing an increase in the size of the case. It is the purpose.

The present invention has a wall portion, and the first rotating shaft to which the first gear member is attached meshes with the first gear member, and power is transmitted from the first gear member. It has a case in which a second rotation shaft to which a second gear member is attached is rotatably supported, and a parking lock mechanism housed in the case, and the parking lock mechanism has a tooth portion. It has a parking gear attached to the second rotating shaft so as to rotate integrally with the second rotating shaft, and has a claw portion that meshes with the tooth portion, and swings to the case via the support shaft. A parking pole that is movably supported, a parking rod that has a cam member and is movably provided in the axial direction, and the cam member that rides on the parking rod as the parking rod moves, so that the claw portion is raised. The support member that swings the parking pole so as to mesh with the tooth portion, and the second rotation axis that extends in a direction orthogonal to the extension direction of the first rotation axis and with respect to the first rotation axis. An operating shaft that is installed on the opposite side of the case and is rotatably supported by the case, and an operating shaft that is provided on one end side in the axial direction of the operating shaft and swings around the operating shaft as a swing center. A first rocking member that positions the operating shaft in the rotational direction, and a swinging member provided on the other end side of the operating shaft in the axial direction and swinging around the operating shaft as the swing center, thereby causing the operating shaft to rotate. A vehicle drive device including a second rocking member that converts the parking pole into an axial movement, wherein the first rotation from the wall portion to the wall portion within a range in which the operation shaft extends. A recess is formed that bulges outward in the axial direction of the shaft, and the parking rod is installed in the axial direction of the first rotating shaft so as to move along the axial direction of the first rotating shaft. The first rotating shaft and the first gear member are installed between the first swinging member and the second swinging member in the axial direction of the operating shaft. The recess has an intermediate recess accommodating an intermediate portion in the axial direction of the operation shaft and bulges outward from the intermediate recess in the axial direction of the first rotating shaft, and at least one of the first rocking members. It is characterized by having a first swing member side recess for accommodating the portion .

As described above, according to the above invention, the parking lock mechanism can be efficiently installed inside the case, and the case can be prevented from becoming large.

FIG. 1 is a perspective view of a vehicle drive device provided with a parking lock mechanism according to an embodiment of the present invention. FIG. 2 is an internal side view of a vehicle drive device provided with a parking lock mechanism according to an embodiment of the present invention. FIG. 3 is a left side view of the left case. FIG. 4 is a cross-sectional view taken along the line in the IV-IV direction of FIG. 2, showing a state in which the input shaft is removed. FIG. 5 is a cross-sectional view taken along the line VV of FIG. FIG. 6 is an inner side view of a vehicle drive device provided with a parking lock mechanism according to an embodiment of the present invention, and shows an attached state of a second retainer. FIG. 7 is an inner side view of a vehicle drive device provided with a parking lock mechanism according to an embodiment of the present invention, and shows a positional relationship between a boss portion to which a first retainer and a second retainer are fixed. FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. It is a top view. FIG. 9 is a sectional view taken along the line in the IX-IX direction of FIG. FIG. 10 is a cross-sectional view taken along the line XX of FIG. 2 in a state where the parking lock mechanism is housed in a case, and shows a parking lock state. FIG. 11 is a left side view of the left case to which the mounting member is attached.

The vehicle drive device according to an embodiment of the present invention has a wall portion, and the first rotating shaft to which the first gear member is attached to the wall portion meshes with the first gear member, and the first gear member is engaged with the first gear member. It has a case in which a second rotating shaft to which a second gear member to which power is transmitted from one gear member is attached is rotatably supported, and a parking lock mechanism housed in the case. The mechanism has a tooth portion, a parking gear attached to the second rotating shaft so as to rotate integrally with the second rotating shaft, and a claw portion that meshes with the tooth portion, and has a case via a support shaft. A parking pole that is swingably supported, a parking rod that has a cam member and is provided so as to be movable in the axial direction, and a cam member that rides on the parking rod as the parking rod moves, so that the claw portion becomes a tooth portion. A support member that swings the parking pole so as to mesh with the first rotation axis, extends in a direction orthogonal to the extension direction of the first rotation axis, and is installed on the side opposite to the second rotation axis with respect to the first rotation axis. A first operation shaft that is rotatably supported by the case and is provided on one end side in the axial direction of the operation shaft and swings with the operation shaft as the swing center to position the operation shaft in the rotation direction. A second swing member, which is provided on the other end side of the operation shaft in the axial direction and swings with the operation shaft as the swing center, converts the rotation of the operation shaft into the movement of the parking pole in the axial direction. A vehicle drive device provided with a rocking member, wherein a recess is formed in the wall portion so as to bulge outward from the wall portion in the axial direction of the first rotation shaft within a range in which the operation shaft extends. The parking rod is installed in the axial direction of the first rotating shaft so as to move along the axial direction of the first rotating shaft, and the first rotating shaft and the first gear member are the axial lines of the operating shaft. It is installed between the first rocking member and the second rocking member in the direction, and at least a part of the parking lock mechanism is housed in the recess.
As a result, the parking lock mechanism can be efficiently installed inside the case, and it is possible to prevent the case from becoming large.

Hereinafter, a vehicle drive device according to an embodiment of the present invention will be described with reference to the drawings.
1 to 11 are views showing a vehicle drive device according to an embodiment of the present invention. In FIGS. 1 to 11, the up / down / front / rear / left / right directions are based on the drive device installed in the vehicle, the direction orthogonal to the front / rear direction is the left / right direction, and the height direction of the drive device is the up / down direction.

First, the configuration will be described.
In FIG. 1, a vehicle drive device 1 (hereinafter, simply referred to as a drive device 1) is mounted on a vehicle and decelerates the rotation of a motor (not shown) for driving the vehicle and transmits the rotation to drive wheels (not shown). The drive device 1 includes a left case 2.

A first joint portion 3A and a second joint portion 3B are provided on the outer peripheral edge of the left case 2, and a right case 4 (FIGS. 5 and 5) is provided on the first joint portion 3A and the second joint portion 3B. 8) The joint portion 4A provided on the outer peripheral edge is joined.

The joint portion 4A extends in the front-rear direction and the vertical direction of the light case 4, similarly to the first joint portion 3A and the second joint portion 3B. The light case 4 of this embodiment constitutes the case member of the present invention.

In the left case 2 and the right case 4, the first joint portion 3A and the second joint portion 3B are aligned with the joint portion 4A, and the first joint portion 3A and the second joint portion 3A and the second joint portion 3A are joined by a bolt (not shown). By fastening the portion 3B and the joint portion 4A, they are integrated.

As a result, a space sealed by the left case 2 and the right case 4 is formed inside the drive device 1. The left case 2 of the present embodiment constitutes the case of the present invention, and the right case 4 constitutes the case member of the present invention.

The first joint portion 3A extends in the front-rear direction, which is the lateral direction of the left case 2. The second joint portion 3B extends in the vertical direction, which is the vertical direction of the left case 2.

A left vertical wall 5 is provided on the back side (left side) of the left case 2 in the depth direction (see FIG. 3). The left case 2 has a rear vertical wall 7, and the rear vertical wall 7 extends to the right from the rear end of the left vertical wall 5 (see FIG. 5). The left case 2 has a front vertical wall 8, and the front vertical wall 8 extends to the right from the front end of the left vertical wall 5.

The left case 2 has an upper wall 9 (see FIG. 4), and the upper wall 9 extends from the upper end of the left vertical wall 5 to the right and connects the upper end of the rear vertical wall 7 and the upper end of the front vertical wall 8. is doing.

The left case 2 has a bottom wall 10 (see FIG. 4), and the bottom wall 10 extends from the lower end of the left vertical wall 5 to the right and connects the lower end of the rear vertical wall 7 and the lower end of the front vertical wall 8. is doing. As a result, a space 11 surrounded by the left vertical wall 5, the rear vertical wall 7, the front vertical wall 8, the upper wall 9, and the bottom wall 10 is formed inside the left case 2.

In FIGS. 1 and 2, a bearing support portion 12 is formed on the left vertical wall 5, and the bearing support portion 12 extends from the left vertical wall 5 to the front side (right side). One end of the input shaft 14 in the axial direction is rotatably supported by the bearing support portion 12 via the bearing 13. The bearing support portion 12 of this embodiment constitutes the support portion of the present invention.

The other end of the input shaft 14 in the axial direction is rotatably supported by a bearing support portion (not shown) provided in the light case 4 via a bearing 26A (see FIG. 8). As a result, the input shaft 14 is rotatably supported by the left case 2 and the right case 4. The input shaft 14 of the present embodiment constitutes the first rotation shaft of the present invention, and the counter shaft 16 constitutes the second rotation shaft of the present invention.

The input shaft 14 is provided with an input gear 15, and the input gear 15 rotates integrally with the input shaft 14.

A bearing support portion 30 (see FIG. 3) is formed on the left vertical wall 5, and the bearing support portion 30 is formed so as to be aligned with the bearing support portion 12 in the front-rear direction. An axial end portion of the counter shaft 16 is rotatably supported on the bearing support portion 30 via a bearing (not shown).

The counter shaft 16 is installed in parallel with the input shaft 14, and the other end in the axial direction of the counter shaft 16 is connected to a bearing support portion (not shown) provided in the light case 4 via a bearing 26B (see FIG. 8). It is rotatably supported.

As a result, the counter shaft 16 is rotatably supported by the left case 2 and the right case 4. The axial direction of the input shaft 14 and the counter shaft 16 is a direction in which the input shaft 14 and the counter shaft 16 extend (left-right direction, depth direction of the left case 2).

The counter shaft 16 is provided with a counter gear 17, a parking gear 18, and a final drive gear 19, and the counter gear 17, the parking gear 18, and the final drive gear 19 rotate integrally with the counter shaft 16. The counter gear 17 has a diameter larger than that of the input gear 15 and meshes with the input gear 15.

A differential device 20 is provided on the side opposite to the input shaft 14 with respect to the counter shaft 16. The differential device 20 includes a differential case 21, a final driven gear 22 provided on the outer peripheral portion of the differential case 21, and a differential mechanism 23 housed in the differential case 21.

The differential case 21 has a support cylinder portion 21A on the right side, and the support cylinder portion 21A is rotatably supported by a bearing support portion (not shown) provided in the light case 4 via a bearing (not shown).

As shown in FIG. 11, the differential case 21 has a support cylinder portion 21B on the left side, and the support cylinder portion 21B is rotatably supported by the left vertical wall 5 via a bearing 26C provided on the left vertical wall 5. There is. As a result, the differential case 21 is rotatably supported by the left case 2 and the right case 4.

The final driven gear 22 has a larger diameter than the input gear 15 and the counter gear 17, and meshes with the final drive gear 19.

One ends of left and right drive shafts (not shown) are inserted into the right support cylinder 21A and the left support cylinder, respectively, and one ends of the left and right drive shafts are connected to the differential mechanism 23.

The other ends of the left and right drive shafts are connected to drive wheels (not shown), and power is distributed to the differential mechanism 23 and the left and right drive shafts.

In the drive device 1, when the driving force of a motor (not shown) is transmitted to the input shaft 14, the power is transmitted from the input gear 15 to the counter shaft 16 via the counter gear 17, and then the final drive gear 19 to the final driven gear 22. Power is transmitted to.

As a result, the differential case 21 rotates, and the power of the motor is transmitted to the left and right drive wheels by the differential mechanism 23 via the left and right drive shafts. As a result, the vehicle is driven.

The parking lock mechanism 31 is housed in the left case 2. The parking lock mechanism 31 includes a parking gear 18, a parking pole 32, a parking pole shaft 33, a return spring 34 (see FIGS. 6 and 7), and a parking rod 35 (see FIG. 5).

Further, the parking lock mechanism 31 includes a support member 36 (see FIG. 5), a manual shaft 37, a detent plate 38, a detent spring 39, a manual plate 40, a first retainer 41 and a second retainer 42. The parking lock mechanism 31 is housed together in the left case 2.

The parking gear 18 is provided between the counter gear 17 and the final drive gear 19 in the extending direction of the counter shaft 16. A plurality of tooth portions 18A are provided on the outer peripheral portion of the parking gear 18 at equal intervals in the circumferential direction.

The parking pole 32 is swingably supported by the left vertical wall 5 via the parking pole shaft 33, and swings around the parking pole shaft 33.

A claw portion 32A is formed on the parking pole 32. When the parking pole 32 swings in one direction about the parking pole shaft 33, the claw portion 32A meshes with the tooth portion 18A of the parking gear 18.

When the parking pole 32 swings in the other direction with respect to the parking pole shaft 33, the claw portion 32A is disengaged from the tooth portion 18A.

In this way, the parking pole 32 swings between the meshing position where the claw portion 32A and the tooth portion 18A mesh with each other and the release position where the meshing between the claw portion 32A and the tooth portion 18A is released.

When the claw portion 32A meshes with the tooth portion 18A, the rotation of the parking gear 18 is restricted and the rotation of the counter shaft 16 is restricted. Since the final drive gear 19 of the counter shaft 16 meshes with the final driven gear 22 of the differential device 20, when the rotation of the parking gear 18 is restricted, the rotation of the final driven gear 22 is restricted. As a result, the rotation of the drive wheels is restricted via the drive shaft, and the vehicle is kept stopped.

In FIG. 5, a boss portion 51 is provided on the left vertical wall 5 of the left case 2, and a parking pole shaft 33 is supported by the boss portion 51. The parking pole shaft 33 of this embodiment constitutes a support shaft of the present invention.

A small diameter portion 51A is formed at the tip of the boss portion 51 in the protruding direction, and the small diameter portion 51A is formed to have a smaller diameter than the base side (back side) of the boss portion 51. The back side is the side of the left vertical wall 5 with respect to the first joint portion 3A and the second joint portion 3B, and the front side is the side of the first joint portion 3A with respect to the left vertical wall 5. And the side of the second joint 3B.

The return spring 34 includes a winding portion 34A that is wound around the small diameter portion 51A (see FIG. 4), and the winding portion 34A is installed on the outer peripheral portion of the small diameter portion 51A (see FIGS. 5 and 6). In FIG. 6, the return spring 34 has a first arm portion 34B and a second arm portion 34C.

The first arm portion 34B is in contact with the protrusion 5A provided on the left case 2, and the second arm portion 34C is in contact with the parking pole 32 (see FIG. 2).

The return spring 34 urges the parking pole 32 so that the claw portion 32A swings downward around the parking pole shaft 33. As a result, the parking pole 32 is urged by the return spring 34 so as to swing from the meshing position to the release position.

In FIG. 7, a parking rod 35 is installed below the bearing support portion 12. In FIG. 10, the parking rod 35 has a straight side 35A and a bent portion 35B. The straight side 35A extends in the same direction as the axial direction of the input shaft 14 and the counter shaft 16, and the bent portion 35B is formed in an L shape so as to bend upward from the straight side 35A.

The parking rod 35 is movable along the axial direction of the input shaft 14 and the counter shaft 16. It is installed in the axial direction of the input shaft 14. The axial direction of the parking rod 35 is a direction in which the straight side 35A extends (left-right direction, depth direction of the left case 2).

A cam member 43 is attached to the tip of the straight side 35A, and the cam member 43 is movable along the axial direction of the straight side 35A at the outer peripheral portion of the straight side 35A.

A stopper portion 35a is formed on the bent portion 35B side of the straight side 35A, and a cam spring 44 is provided between the cam member 43 and the stopper portion 35a. A stopper portion 35b is formed at the tip end portion of the straight side 35A.

The cam spring 44 urges the cam member 43 until the cam member 43 comes into contact with the stopper portion 35b, and the cam member 43 is prevented from coming out of the parking rod 35 by coming into contact with the stopper portion 35b. ..

The cam member 43 has a cam surface 43a having a tapered shape from the stopper portion 35a toward the stopper portion 35b in the extending direction of the straight side 35A.

The bent portion 35B is attached to the manual plate 40. The manual plate 40 is attached to the lower end portion 37b side with respect to the upper end portion 37a of the manual shaft 37 (see FIG. 2).

The manual shaft 37 is installed on the side opposite to the counter shaft 16 with respect to the input shaft 14 and on the front vertical wall 8 side with respect to the bearing support portion 12, and is in the direction in which the input shaft 14 and the counter shaft 16 extend. It extends orthogonally in the height direction of the left case 2. The manual shaft 37 is installed within the range of the bearing support portion 12 in the axial direction of the input shaft 14, that is, within the protruding range of the bearing support portion 12.

In FIG. 1, the upper end portion 37a of the manual shaft 37 is rotatably supported by the upper wall 9 of the left case 2. The lower end portion 37b of the manual shaft 37 penetrates the bottom wall 10 of the left case 2 and projects downward from the bottom wall 10, and the bottom wall 10 is rotatably supported.

One end of a parking cable (not shown) is connected to the lower end 37b of the manual shaft 37 via a lever (not shown). The other end of the parking cable is connected to a selector lever (not shown) arranged in the vehicle interior and operated by the driver.

The selector lever is operated by the driver to move to either the parking range or the non-parking range position. At this time, the manual shaft 37 rotates, and the manual plate 40 swings with the rotation of the manual shaft 37, so that the parking rod 35 is moved in the axial direction.

In FIG. 6, the support member 36 is installed below the bearing support portion 12. The support member 36 is installed below the parking pole 32 and is formed in a U shape when viewed from the axial direction of the input shaft 14.

In FIG. 10, the upper surface of the support member 36 has a conical surface 36a that inclines upward from the back side in the depth direction of the left case 2 toward the front side, and a conical surface 36a that is horizontally inclined toward the front side from the upper end in the inclination direction of the conical surface 36a. An extending cylindrical surface 36b is formed.

In the parking lock mechanism 31, when the shift lever is operated to the parking range, the manual shaft 37 rotates in one direction, and the manual plate 40 swings in one direction as the manual shaft 37 rotates.

At this time, the parking rod 35 moves to the parking pole 32 side, and as shown in FIG. 10, the cam member 43 rides on the cylindrical surface 36b from the conical surface 36a of the support member 36. When the cam member 43 rides on the cylindrical surface 36b, the cam member 43 pushes up the parking pole 32 upward.

At this time, the parking pole 32 swings around the parking pole shaft 33 in the counterclockwise rotation direction of FIG. 2 against the urging force of the return spring 34.

As a result, the claw portion 32A of the parking pole 32 is fitted to the tooth portion 18A of the parking gear 18, and the rotation of the parking gear 18 is restricted. In this state, the cam member 43 is positioned between the parking pole 32 and the support member 36, so that the meshing between the claw portion 32A and the tooth portion 18A is not disengaged.

When the cam member 43 pushes the parking pole 32 upward, the cam spring 44 is compressed. At this time, the restoring force of the cam spring 44 exceeds the frictional force between the cam member 43 and the parking pole 32 and the restoring force of the return spring 34.

As a result, the cam member 43 can surely enter between the support member 36 and the parking pole 32, and the parking pole 32 can be surely swung so that the claw portion 32A moves toward the parking gear 18.

In the parking lock mechanism 31, when the shift lever is operated in the non-parking range, the manual shaft 37 rotates in the other direction, and the manual plate 40 swings in the other direction as the manual shaft 37 rotates.

At this time, the parking rod 35 moves to the back side away from the parking pole 32, and the cam member 43 moves from the cylindrical surface 36b of the support member 36 to the conical surface 36a.

At this time, the parking pole 32 is urged by the return spring 34 and swings around the parking pole shaft 33 in the clockwise direction of FIG.

As a result, the claw portion 32A of the parking pole 32 is separated from the tooth portion 18A of the parking gear 18, and the fitting between the claw portion 32A and the tooth portion 18A is released. As a result, the rotation of the parking gear 18 is not restricted.

As described above, the manual plate 40 of the present embodiment swings with the manual shaft 37 as the swing center, thereby converting the rotation of the manual shaft 37 into the movement of the parking pole 32 in the axial direction.

In FIGS. 1 and 2, a detent plate 38 is attached to the upper end portion 37a of the manual shaft 37, and the detent plate 38 is swung by the rotation of the manual shaft 37. Fitting grooves 38A and 38B are formed on the outer peripheral portion of the detent plate 38.

A detent spring 39 is provided on the upper portion of the left vertical wall 5, and the detent spring 39 is installed in the input gear 15 and the counter gear 17 with respect to the manual shaft 37.

A roller member 39A is provided at the tip of the detent spring 39. The roller member 39A is freely fitted in the fitting groove 38A and the fitting groove 38B, and the detent spring 39 has a pressing force for pressing the roller member 39A against the detent plate 38.

When the manual shaft 37 rotates and the detent plate 38 swings due to the shift operation of the driver, and the roller member 39A is fitted in the fitting groove 38A, the claw portion 32A of the parking pole 32 is the tooth of the parking gear 18. It is in a meshing position where it meshes with the portion 18A.

On the other hand, in a state where the manual shaft 37 rotates and the detent plate 38 swings due to the shift operation of the driver and the roller member 39A is fitted in the fitting groove 38B, the claw portion 32A of the parking pole 32 is the parking gear 18. It is in the release position off the tooth portion 18A.

The detent plate 38 and the detent spring 39 form a detent mechanism, and by moving the roller member 39A between the fitting groove 38A and the fitting groove 38B during the shift operation of the driver, the driver during the shift operation. Gives a switching feel (so-called click feeling).

Further, the detent plate 38 swings with the manual shaft 37 as the swing center, and the roller member 39A is positioned between the fitting groove 38A and the fitting groove 38B to position the manual shaft 37 in the rotational direction. conduct. The manual shaft 37 of this embodiment constitutes an operation shaft of the present invention.

As shown in FIGS. 2 and 3, an intermediate recess 27, an upper recess 28, and a lower recess 29 are provided at a portion of the left vertical wall 5 between the bearing support portion 12 and the front vertical wall 8 in the front-rear direction. It is formed. The intermediate recess 27, the upper recess 28, and the lower recess 29 are formed in the range of the left vertical wall 5 on which the manual shaft 37 extends, that is, in the range from the upper wall 9 to the bottom wall 10.

As shown in FIG. 8, the intermediate recess 27 bulges outward from the left vertical wall 5 in the axial direction of the input shaft 14, and the intermediate recess 27 accommodates the vertical intermediate portion 37c of the manual shaft 37. There is.
The outside of the left vertical wall 5 in the axial direction of the input shaft 14 is to the left of the left vertical wall 5 on the opposite side of the first joint portion 3A and the second joint portion 3B.

The width of the intermediate recess 27 in the front-rear direction is formed to be larger than the diameter of the manual shaft 37, and has a shape that sandwiches the manual shaft 37 from the front-rear direction so that the manual shaft 37 can rotate.

The upper recess 28 is provided above the intermediate recess 27. The upper recess 28 bulges outward in the axial direction of the input shaft 14 from the intermediate recess 27, and the upper recess 28 accommodates the upper end portion 37a of the manual shaft 37 and a part of the detent plate 38.

The lower recess 29 is provided below the intermediate recess 27, and bulges outward in the axial direction of the input shaft 14 from the upper recess 28. In FIG. 9, a part of the parking rod 35 (left side portion), a lower part of the manual shaft 37, and a manual plate 40 are housed in the lower recess 29, and a space for the parking rod 35 to move is formed. ..

In FIG. 9, the lower recess 29 includes a first recess 29A and a second recess 29B. The first recess 29A extends in the swing direction of the manual plate 40, and the second recess 29B is communicated with the first recess 29A and extends in the swing direction of the manual plate 40.

The second recess 29B has a larger curvature in the swing direction of the manual plate 40 than the first recess 29A, and the manual plate 40 swings within the range in which the second recess 29B is formed. .. FIG. 9 shows a range in which the second recess 29B is formed.

As described above, the intermediate recess 27, the upper recess 28, and the lower recess 29 bulge outward from the left vertical wall 5 in the axial direction of the input shaft 14 rather than the left vertical wall 5. The intermediate recess 27, the upper recess 28, and the lower recess 29 of this embodiment constitute the recess of the present invention.

The detent plate 38 of the present embodiment constitutes the first rocking member of the present invention, and the manual plate 40 constitutes the second rocking member of the present invention. The upper recess 28 constitutes the first rocking member side recess of the present invention, and the lower recess 29 constitutes the second rocking member side recess of the present invention.

In FIGS. 1 and 2, stopper ribs 28A and 28B are provided on the inner wall surface of the upper concave portion 28, and the stopper ribs 28A and 28B are located in the same plane as the detent plate 38. In other words, the stopper ribs 28A and 28B are located at the same height as the detent plate 38.

The stopper rib 28A is provided on one side of the detent plate 38 in the swing direction, and the stopper rib 28B is provided on the other side of the detent plate 38 in the swing direction.

The stopper ribs 28A and 28B come into contact with or do not come into contact with the detent plate 38 as the manual shaft 37 rotates, and when they come into contact with the detent plate 38, they function as stoppers that regulate the rotation of the manual shaft 37.

In FIG. 2, the input shaft 14 and the input gear 15 are installed between the detent plate 38 and the manual plate 40 in the axial direction of the manual shaft 37. In other words, the input shaft 14 and the input gear 15 are installed below the detent plate 38 and above the manual plate 40.

In FIG. 7, the counter gear 17 is installed on the side opposite to the manual shaft 37 with respect to the input gear 15. The final driven gear 22 is installed on the side opposite to the input gear 15 with respect to the counter gear 17.

The rotation center axis O1 of the input gear 15, the rotation center axis O2 of the counter gear 17, and the rotation center axis O3 of the final driven gear 22 are located on the same virtual plane L1. The rotation center axis O1 of the input gear 15 is the same as the rotation center axis O1 of the input shaft 14, and the rotation center axis O2 of the counter gear 17 is the same as the rotation center axis O2 of the counter shaft 16. The rotation center axis O3 of the final driven gear 22 is the same as the rotation center axis O3 of the support cylinder portion 21A.

In FIG. 7, the parking rod 35 is installed on the input gear 15 side with respect to the manual shaft 37. In FIG. 2, the parking pole 32 is installed between the input gear 15 and the counter gear 17 and the bottom wall 10.

Specifically, with respect to the space formed between the final driven gear 22 having the largest diameter and the bottom wall 10, the input gear 15 having a smaller diameter than the final driven gear 22 and the counter gear 17 and the bottom wall 10 have a smaller diameter. A large space is secured. The parking pole 32 is installed in the space between the input gear 15 and the counter gear 17 and the bottom wall 10.

The parking pole shaft 33 is installed on the final driven gear 22 side, and the parking pole 32 extends from the parking pole shaft 33 to the manual shaft 37 side.

The input gear 15 of the present embodiment constitutes the first gear member of the present invention, and the counter gear 17 constitutes the second gear member of the present invention. The final driven gear 22 constitutes the third gear member of the present invention.

In FIGS. 4 and 5, the first retainer 41 is installed on the front side of the parking pole 32 in the depth direction of the left case 2, and extends in the front-rear direction orthogonal to the depth direction (see FIG. 2).

The second retainer 42 is installed behind the parking pole 32 in the depth direction of the left case 2. As a result, the parking pole 32 is sandwiched between the first retainer 41 and the second retainer 42 in the depth direction.

In FIGS. 1 and 2, the first retainer 41 includes a cylindrical portion 61, a first connecting portion 62 extending rearward from the cylindrical portion 61, and a second connecting portion 63 extending forward from the cylindrical portion 61. I have.

A fitting hole 61A is formed in the cylindrical portion 61, and the tip of the parking rod 35 can enter the fitting hole 61A (see FIG. 10). A boss portion 62A is formed at the rear end portion of the first connecting portion 62, and a bolt 71A is inserted through the boss portion 62A (see FIG. 2).

A boss portion 63A is formed at the front end portion of the second connecting portion 63, and a bolt 71B is inserted through the boss portion 63A. In FIG. 7, the left vertical wall 5 of the left case 2 is provided with boss portions 52 and 53.

The boss portion 52 and the boss portion 53 are provided along the first joint portion 3A of the left case 2. The boss portion 52 is connected to a reinforcing rib 72 that connects the left vertical wall 5 and the bottom wall 10, and the boss portion 53 is connected to the bottom wall 10 of the left case 2.

The boss portion 62A of the first connecting portion 62 is fixed to the boss portion 52 by the bolt 71A, and the boss portion 63A of the second connecting portion 63 is fixed to the boss portion 53 by the bolt 71B. As a result, the first retainer 41 is fixed to the left case 2.

A fitting portion 62B is formed in the first connecting portion 62. The fitting portion 62B is provided on the front side of the boss portion 62A, and the front side of the parking pole shaft 33 is fitted to the fitting portion 62B (see FIG. 5).

In FIG. 5, the boss portion 51 projects from the left vertical wall 5 on the back side in the depth direction of the left case 2 toward the side of the second retainer 42, and supports the back side of the parking pole shaft 33. As a result, the parking pole shaft 33 is supported by the boss portion 51 and the fitting portion 62B of the first retainer 41.

In FIG. 6, the second retainer 42 is installed on the front side of the manual shaft 37, and has a cylindrical portion 64 (see FIG. 5), a first connecting portion 65 extending rearward from the cylindrical portion 64, and a cylindrical portion. It is provided with a second connecting portion 66 extending forward from 64.

In FIG. 10, a guide hole 64A is formed in the cylindrical portion 64, and a parking rod 35 is inserted through the guide hole 64A. As a result, the parking rod 35 is guided by the cylindrical portion 64 and moves in the axial direction.

In FIG. 10, a fitting portion 64B is formed in the cylindrical portion 64, and a support member 36 is fitted in the fitting portion 64B. A fitting portion 61B is formed in the cylindrical portion 61, and a support member 36 is fitted in the fitting portion 61B. As a result, the support member 36 is supported by the first retainer 41 and the second retainer 42 by the fitting portion 61B and the fitting portion 64B.

That is, the support member 36 is supported by the first retainer 41 and the second retainer 42 by being sandwiched between the cylindrical portion 61 and the cylindrical portion 64 in the depth direction of the left case 2.

In FIG. 1, a boss portion 65A is formed at the rear end portion of the first connecting portion 65, and a bolt 71C is inserted through the boss portion 65A.

Bosses 66A and 66B are formed at the front end of the second connecting portion 66 so as to be separated in the vertical direction, and bolts 71D and 71E are inserted through the boss portions 66A and 66B (see FIG. 2).

In FIG. 7, a boss portion 54 is provided around the bearing support portion 12, that is, at the lower portion of the bearing support portion 12. The boss portion 54 extends from the left vertical wall 5 toward the front side along the axial direction of the input shaft 14, and is connected to the lower portion of the bearing support portion 12. That is, the boss portion 54 is connected to the left vertical wall 5 and the bearing support portion 12.

The front vertical wall 8 is provided with boss portions 55 and 56, and the boss portions 55 and 56 are connected to the front vertical wall 8. The boss portions 55 and 56 are vertically separated along the second joint portion 3B of the left case 2, and extend from the lower recess 29 toward the second joint portion 3B in the axial direction of the input shaft 14. (See FIGS. 9 and 10).

In FIG. 7, the boss portions 55 and 56 are located on the front vertical wall 8 side opposite to the boss portion 54 with the lower recess 29 interposed therebetween in the front-rear direction. In other words, the lower recess 29 is provided between the boss portion 54 and the boss portions 55, 56 in the front-rear direction.

The left vertical wall 5 and the front vertical wall 8 of the present embodiment constitute the wall portion of the present invention, and the first joint portion 3A and the second joint portion 3B constitute the joint portion of the present invention.

The boss portion 65A of the first connecting portion 65 is fixed to the boss portion 54 by the bolt 71C, and the boss portions 66A and 66B of the second connecting portion 66 are fixed to the boss portions 55 and 56 by the bolts 71D and 71E. Has been done.

As a result, the second retainer 42 is connected (fixed) to the left case 2 so as to straddle the lower recess 29. The second retainer 42 of the present embodiment constitutes the connecting member of the present invention.

In FIG. 3, a reinforcing rib 73 is formed on the outer peripheral surface 5a of the left vertical wall 5, and the reinforcing rib 73 is connected to the outer peripheral surface 12a of the bearing support portion 12. The reinforcing rib 73 extends from one end portion 73a to the other end portion 73b along the circumferential direction of the bearing support portion 12, and projects outward (to the left) from the outer peripheral surface 5a of the left vertical wall 5.

The outer peripheral surface 5a of the left vertical wall 5 is a surface opposite to the inner peripheral surface of the left vertical wall 5 on which the parking lock mechanism 31 or the like faces. The bearing support portion 12 bulges cylindrically from the outer peripheral surface 5a of the left vertical wall 5, and the outer peripheral surface 12a of the bearing support portion 12 is the entire surface that bulges outward from the left vertical wall 5.

The lower recess 29 is connected to the outer peripheral surface 12a of the bearing support portion 12 via the reinforcing rib 73. In other words, the reinforcing rib 73 connects the lower recess 29 and the outer peripheral surface 12a of the bearing support portion 12.

On the outer peripheral surface 12a of the bearing support portion 12, mount boss portions 74A, 74B, 74C are provided on the outer peripheral surface 5a of the left vertical wall 5. In FIG. 11, the mount member 75 is attached to the mount boss portions 74A, 74B, and 74C by bolts 77.

The mount member 75 is attached to the vehicle body 76 such as a side member, and elastically supports the left case 2 to the vehicle body 76. As a result, the drive device 1 is supported by the vehicle body 76.

In FIG. 7, the upper recess 28 is provided on the upper side, which is one side of the virtual plane L1, and the lower recess 29 is provided on the lower side of the virtual plane L1 on the opposite side of the upper recess 28. ing.

In FIGS. 3 and 11, the mount boss portions 74A, 74B, and 74C are formed between the outer peripheral surface 28a of the upper concave portion 28 and the outer peripheral surface 12a of the bearing support portion 12, and are formed with the outer peripheral surface 28a of the upper concave portion 28. The outer peripheral surface 12a of the bearing support portion 12 is connected by the mount boss portions 74A, 74B, 74C.

According to the drive device 1 of the present embodiment, the intermediate recess 27 in the left vertical wall 5 of the left case 2 bulges outward from the left vertical wall 5 in the axial direction of the input shaft 14 in the range in which the manual shaft 37 extends. The upper recess 28 and the lower recess 29 are formed.

The parking rod 35 is installed in the axial direction of the input shaft 14 so as to move along the axial direction of the input shaft 14. The input shaft 14 and the input gear 15 are installed between the detent plate 38 and the manual plate 40 in the axial direction of the manual shaft 37, and the parking rod 35, the manual shaft 37, a part of the detent plate 38, and the manual plate 40 are installed. Is housed in any of the intermediate recess 27, the upper recess 28, and the lower recess 29.

This makes it possible to prevent the manual plate 40 and the detent plate 38 from interfering with the input shaft 14 and the input gear 15 when the manual shaft 37 rotates.

Therefore, the parking rod 35, the manual shaft 37, the detent plate 38, and the manual plate 40 are installed by using the space in the axial direction of the input shaft 14, that is, the intermediate recess 27, the upper recess 28, and the lower recess 29. Can be done.

Therefore, the manual shaft 37 can be brought closer to the input shaft 14 and the input gear 15 between the manual plate 40 and the detent plate 38.

As a result, the parking lock mechanism 31 can be efficiently installed inside the left case 2, and the size of the left case 2 can be suppressed from becoming large.

Further, since the left case 2 is provided with the lower recess 29 that bulges outward from the left vertical wall 5 in the axial direction of the input shaft 14, the rigidity of the left case 2 can be increased by the lower recess 29. Then, by accommodating the parking rod 35 and the manual plate 40 in the lower recess 29 having high rigidity, the behavior of the parking rod 35 and the manual shaft 37 can be stabilized.

Specifically, when the vehicle is traveling, the reaction force F1 (see FIG. 2) acts from the input gear 15 in the direction orthogonal to the virtual plane L1 via the input shaft 14 due to the engagement between the input gear 15 and the counter gear 17. In this case, it is possible to prevent the lower recess 29 from being deformed or vibrating.

Therefore, the behavior of the manual plate 40 housed in the lower recess 29 can be stabilized. Further, since the lower recess 29 can be prevented from being deformed or vibrated, the manual plate 40 can be installed close to the wall surface of the lower recess 29, and a space for accommodating the parking rod 35 and the manual plate 40 can be provided. It can be minimized. As a result, the size of the left case 2 can be reduced more effectively.

Further, according to the drive device 1 of the present embodiment, the intermediate recess 27 accommodates the intermediate portion 37c in the axial direction of the manual shaft 37, and the upper recess 28 is outside the axial direction of the input shaft 14 as compared with the intermediate recess 27. Since it bulges toward the side, the rigidity of the upper concave portion 28 can be increased.

As a result, when the vehicle is traveling, the input gear 15 and the counter gear 17 mesh with each other, so that the reaction force F2 (reaction force F2) from the input gear 15 in the direction orthogonal to the virtual plane L1 via the input shaft 14 and in the direction opposite to the reaction force F1. When (see FIG. 2) acts, it is possible to suppress the deformation and vibration of the upper concave portion 28.

Further, since a part of the detent plate 38 is housed in the highly rigid upper recess 28, the behavior of the detent plate 38 can be stabilized. Further, since the upper concave portion 28 can be suppressed from being deformed or vibrated, the space for accommodating the detent plate 38 can be minimized, and the left case 2 can be downsized by that amount.

Although a part of the detent plate 38 is accommodated in the upper concave portion 28, the entire detent plate 38 may be accommodated. In this case, the upper recess 28 may be bulged outward in the axial direction of the input shaft 1 so that the entire detent plate 38 can be accommodated.

Further, the lower recess 29 of the present embodiment extends in the swing direction of the manual plate 40 by being communicated with the first recess 29A extending in the swing direction of the manual plate 40 and the first recess 29A, and the first one. The manual plate 40 has a second recess 29B having a larger curvature in the swing direction than the recess 29A of the manual plate 40, and the manual plate 40 swings within the range in which the second recess 29B is formed.

As a result, the amount of swelling of the lower concave portion 29 can be reduced by the amount provided with the first concave portion 29A. In other words, it is sufficient to inflate the lower recess 29 only in the range in which the manual plate 40 swings, and it is possible to effectively suppress the increase in size of the left case 2.

Further, according to the drive device 1 of the present embodiment, the stopper ribs 28A and 28B are provided on the inner wall surface of the upper concave portion 28, and the stopper ribs 28A and 28B are located in the same plane as the detent plate 38. As the manual shaft 37 rotates, it comes into contact with or does not come into contact with the detent plate 38.

As a result, when the detent plate 38 swings between the meshing position and the disengagement position, the detent plate 38 swings beyond the meshing position and the disengagement position by contacting the stopper ribs 28A and 28B. Can be regulated.

Therefore, the swing of the detent plate 38 can be easily regulated by a simple configuration in which the stopper ribs 28A and 28B are machined on the inner wall surface of the upper recess 28, and the left case 2 is a component that regulates the swing of the detent plate 38. It is not necessary to install it separately.

As a result, it is not necessary to secure a space for installing new parts for restricting the swing of the detent plate 38 inside the left case 2, the size of the left case 2 can be reduced, and the drive device can be reduced. The manufacturing cost of 1 can be reduced.

Further, by providing the stopper ribs 28A and 28B on the inner wall surface of the upper concave portion 28, the rigidity of the upper concave portion 28 can be increased, and the upper concave portion 28 can be suppressed from vibrating or deforming due to an external force. Therefore, the behavior of the detent plate 38 can be stabilized.

Further, according to the drive device 1 of the present embodiment, the parking rod 35 is installed on the input shaft 14 side with respect to the manual shaft 37, and the support member 36 is the first retainer 41 and the second retainer 42. It is connected to the left case 2 via.

As a result, the support member 36 can be fixed to the left case 2 without using the front vertical wall 8 and the bottom wall 10 of the left case 2. Therefore, it is not necessary to provide a configuration for attaching the support member 36 to the left case 2, and the configuration of the left case 2 can be simplified accordingly.

Further, since the parking pole shaft 33 is supported by the boss portion 51 formed on the first retainer 41 and the left case 2, the parking pole shaft 33 is supported by using the first retainer 41 and the second retainer 42. It can be unnecessary to hold.

Therefore, the second retainer 42 can be miniaturized, and the parking lock mechanism 31 can be miniaturized.

Further, according to the drive device 1 of the present embodiment, a counter gear 17 having a diameter larger than that of the input gear 15 is installed on the opposite side of the manual shaft 37 with respect to the input gear 15, and the input is input to the counter gear 17. A final driven gear 22 having a diameter larger than that of the counter gear 17 is installed on the opposite side of the gear 15.

The rotation center axis O1 of the input gear 15, the rotation center axis O2 of the counter gear 17, and the rotation center axis O3 of the final driven gear 22 are located on the same virtual plane L1, and the parking pole 32 is the input gear 15 and It is installed between the counter gear 17 and the bottom wall 10.

The parking pole shaft 33 is installed on the final driven gear 22 side with respect to the input gear 15, and the parking pole 32 extends from the parking pole shaft 33 to the manual shaft 37 side.

As a result, the parking pole 32 can be installed in a wide space between the input gear 15 and the counter gear 17 and the bottom wall 10, and the swing range of the parking pole 32 can be expanded. Therefore, the parking lock mechanism 31 can be installed more efficiently inside the left case 2, and it is possible to more effectively suppress the increase in size of the left case 2.

Further, the parking pole 32 of this embodiment swings by a parking pole shaft 33 provided at one end of the parking pole 32. As a result, the swing range of the parking pole shaft 33 can be reduced as compared with the case where the parking pole shaft is provided at the center of the parking pole 32 in the extending direction.

Therefore, the space in which the parking pole 32 is installed can be reduced, and the left case 2 can be reduced in size accordingly.

Further, according to the drive device 1 of the present embodiment, the left vertical wall 5 is provided with a bearing support portion 12 that rotatably supports the input shaft 14 via the bearing 13. In addition to this, a reinforcing rib 73 connected to the outer peripheral surface 12a of the bearing support portion 12 is formed on the outer peripheral surface 5a of the left vertical wall 5, and the outer peripheral surface 29a of the lower recess 29 is interposed via the reinforcing rib 73. It is connected to the outer peripheral surface 12a of the bearing support portion 12.

Thereby, the rigidity of the bearing support portion 12 can be increased by the reinforcing rib 73. Therefore, when the reaction force F1 (see FIG. 2) acts from the input gear 15 via the input shaft 14 due to the engagement between the input gear 15 and the counter gear 17 when the vehicle is running, the bearing support portion 12 acts on the input shaft. The support rigidity of 14 can be increased.

Further, the rigidity of the lower recess 29 can be increased by the reinforcing rib 73, and the deformation and vibration of the lower recess 29 due to an external force can be suppressed. Therefore, the behavior of the manual plate 40 housed in the lower recess 29 can be stabilized.

Further, since the reinforcing rib 73 extends along the circumferential direction of the bearing support portion 12, the rigidity of the input shaft 14 in the rotational direction can be increased, and the bearing rigidity of the bearing support portion 12 can be increased more effectively.

Further, since the rigidity of the lower concave portion 29 can be increased by the reinforcing rib 73 provided on the outer peripheral surface 5a of the left vertical wall 5, the bulging amount of the lower concave portion 29 with respect to the left vertical wall 5 is the minimum necessary bulging amount. It is possible to prevent the left case 2 from becoming large.

Further, according to the drive device 1 of the present embodiment, a mount member 75 for supporting the left case 2 on the vehicle body 76 is mounted on the outer peripheral surface 5a of the left vertical wall 5 around the outer peripheral surface 12a of the bearing support portion 12. Boss portions 74A, 74B, 74C are provided.

The upper recess 28 is provided above the virtual plane L1 connecting the rotation center axis O1 of the input gear 15, the rotation center axis O2 of the counter gear 17, and the rotation center axis O3 of the final driven gear 22, and is provided above the lower recess. 29 is provided on the lower side of the virtual plane L1 opposite to the upper concave portion 28.

The outer peripheral surface 28a of the upper concave portion 28 and the outer peripheral surface 12a of the bearing support portion 12 are connected by the mount boss portions 74A, 74B, 74C, and the second retainer 42 straddles the lower concave portion 29 and is left. It is connected to the case 2.

As a result, the upper concave portion 28 and the outer peripheral surface 12a of the bearing support portion 12 can be connected by the mount boss portions 74A, 74B, 74C, and the rigidity of the upper concave portion 28 can be increased.

Further, by connecting the second retainer 42 to the left case 2 so as to straddle the lower concave portion 29, the bearing support portion 12 and the lower concave portion 29 can be reinforced, and the bearing support portion 12 and the lower portion can be reinforced. The rigidity of the side recess 29 can be increased.

Therefore, the rigidity of the lower recess 29 and the upper recess 28 can be increased with respect to the reaction force F1 acting downward and the reaction force F2 acting upward from the input shaft 14 when the vehicle is traveling, and the parking rod 35 and the manual shaft 37 can be increased in rigidity. And the behavior of the detent plate 38 can be stabilized.

In addition to this, the space inside the upper recess 28 and the lower recess 29 can be minimized. As a result, the size of the left case 2 can be reduced more effectively.

Further, since the rigidity of the lower recess 29 can be increased by the second retainer 42, bosses or the like may be excessively formed near the outer peripheral surface 29a of the lower recess 29 or the outer peripheral surface of the lower recess 29, or a reinforcing member may be provided. It can be unnecessary to add. Therefore, the configuration of the left case 2 can be simplified accordingly.

Although embodiments of the present invention have been disclosed, it will be apparent to those skilled in the art that modifications may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

1 ... Vehicle drive, 2 ... Left case (case), 5 ... Left vertical wall (wall), 5a ... Outer surface (outer surface of wall), 10 ... Bottom Wall, 12 ... bearing support part (support part), 12a ... outer peripheral surface (outer peripheral surface of support part), 14 ... input shaft (first rotating shaft), 15 ... input gear (first) 1 gear member), 16 ... counter shaft (second rotating shaft), 17 ... counter gear (second gear member), 18 ... parking gear, 18A ... tooth portion, 19. .. Final drive gear (third gear member), 27 ... intermediate recess, 28 ... upper recess (recess, first rocking member side recess), 28A, 28B ... stopper rib, 28a ... outer peripheral surface (outer peripheral surface of the first rocking member side recess), 29 ... lower recess (recess, second rocking member side recess), 29A ... first recess, 29B. .. 2nd concave portion, 29a ... outer peripheral surface (outer peripheral surface of the second rocking member side concave portion), 31 ... parking lock mechanism, 32 ... parking pole, 32A ... claw portion, 33 ... parking pole shaft (support shaft), 35 ... parking rod, 36 ... support member, 37 ... manual shaft (operation shaft), 37a ... upper end (one end in the axial direction of the operation shaft) ), 37b ... Lower end (the other end in the axial direction of the operating shaft), 37c ... Intermediate (intermediate of the operating shaft), 38 ... Detent plate (first swinging member), 40. .. Manual plate (second rocking member), 42 ... second retainer (connecting member), 43 ... cam member, 73 ... reinforcing rib, 73a ... one end (reinforcing rib) One end), 73b ... the other end (the other end of the reinforcing rib), 74A ... mount boss, 75 ... mount member, 76 ... car body

Claims (7)

A second rotating shaft having a wall portion to which the first gear member is attached and meshing with the first gear member to transmit power from the first gear member. It has a case in which the second rotating shaft to which the gear member of the above is attached is rotatably supported, and a parking lock mechanism housed in the case.
The parking lock mechanism is
A parking gear having teeth and attached to the second rotating shaft so as to rotate integrally with the second rotating shaft.
A parking pole that has a claw portion that meshes with the tooth portion and is swingably supported by the case via a support shaft.
A parking rod that has a cam member and is provided so that it can move in the axial direction.
A support member that swings the parking pole so that the claw portion meshes with the tooth portion by riding on the cam member as the parking rod moves.
An operation that extends in a direction orthogonal to the extending direction of the first rotation axis, is installed on the side opposite to the second rotation axis with respect to the first rotation axis, and is rotatably supported by the case. Axis and
A first rocking member provided on one end side in the axial direction of the operating shaft and swinging around the operating shaft as a swing center to position the operating shaft in the rotational direction.
A second sway that is provided on the other end side of the operation shaft in the axial direction and swings with the operation shaft as the swing center to convert the rotation of the operation shaft into the movement of the parking pole in the axial direction. It is a vehicle drive device equipped with a moving member.
The wall portion is formed with a recess that bulges outward from the wall portion in the axial direction of the first rotation axis within the range in which the operation shaft extends.
The parking rod is installed in the axial direction of the first rotating shaft so as to move along the axial direction of the first rotating shaft.
The first rotating shaft and the first gear member are installed between the first swinging member and the second swinging member in the axial direction of the operating shaft.
The recess has an intermediate recess accommodating an intermediate portion in the axial direction of the operation shaft and bulges outward from the intermediate recess in the axial direction of the first rotating shaft, and at least one of the first rocking members. A vehicle drive device comprising a first rocking member-side recess for accommodating a portion . The recess has a second swing member-side recess that bulges outward in the axial direction of the first rotation shaft from the first swing member-side recess and accommodates the second swing member. death,
The second oscillating member-side recess is a first recess extending in the oscillating direction of the second oscillating member and the oscillating direction of the second oscillating member in contact with the first recess. Has a second recess that extends to and has a greater curvature in the swing direction of the second rocking member than the first recess.
The vehicle drive device according to claim 1 , wherein the second rocking member swings within a range in which the second recess is formed . A stopper rib is provided on the inner wall surface of the first rocking member side recess.
The claim is characterized in that the stopper rib is located in the same plane as the first rocking member, and comes into contact with or is not in contact with the first rocking member as the operation shaft rotates. 1 or the vehicle drive device according to claim 2. The parking rod is installed on the first rotating shaft side with respect to the operating shaft.
The vehicle drive device according to claim 2, wherein the support member is connected to the case via a connecting member . The case has a bottom wall extending from the wall portion in the axial direction of the first rotation axis.
The second gear member is formed to have a larger diameter than the first gear member.
A third gear member having a diameter larger than that of the second gear member is installed on the opposite side of the second gear member from the first gear member.
The rotation center axis of the first gear member, the rotation center axis of the second gear member, and the rotation center axis of the third gear member are located on the same plane.
The parking pole is installed between the first gear member and the second gear member and the bottom wall.
The support shaft is installed on the third gear member side with respect to the first gear member.
The vehicle drive device according to claim 4 , wherein the parking pole extends from the support shaft to the operation shaft side . A support portion for rotatably supporting the first rotating shaft is provided on the wall portion via a bearing.
Reinforcing ribs connected to the outer peripheral surface of the support portion are formed on the outer peripheral surface of the wall portion.
The vehicle drive device according to claim 5, wherein the outer peripheral surface of the second rocking member side recess is connected to the outer peripheral surface of the support portion via the reinforcing rib . A mount boss portion for attaching a mount member for supporting the case to the vehicle body is provided on the outer peripheral surface of the wall portion around the outer peripheral surface of the support portion.
The first rocking member side recess is from a virtual plane connecting the rotation center axis of the first gear member, the rotation center axis of the second gear member, and the rotation center axis of the third gear member. Is also provided on one side,
The second rocking member side recess is provided on the side opposite to the first rocking member side recess with respect to the virtual plane.
The outer peripheral surface of the first rocking member side recess and the outer peripheral surface of the support portion are connected by the mount boss portion.
The vehicle drive device according to claim 6 , wherein the connecting member is connected to the case so as to straddle the second rocking member side recess .

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