vehicle

Abstract

To enable detection of damage to parking poles. [Solution] The vehicle includes a parking gear, a parking pawl attached to the first pivot shaft and configured to rotate between a first position in which it engages with the parking gear and a second position in which it disengages from the parking gear, a rod configured to move in the axial direction, a cam attached to the rod that rotates the parking pawl from the second position to the first position in accordance with the axial movement of the rod, a stopper receiver provided on the rod, and a stopper attached to the second pivot shaft and configured to rotate between a third position in which it contacts the parking pawl but cannot contact the stopper receiver and a fourth position in which it can contact the stopper receiver. If the parking pawl is damaged, the stopper rotates from the third position to the fourth position, and the stopper receiver contacts the stopper rotated to the fourth position, thereby restricting the axial movement of the rod.

Description

Technical Field

[0001] The present invention relates to a vehicle.

Background Art

[0002] Conventionally, a vehicle is provided with a parking device that meshes a parking pole with a parking gear to restrict the rotation of the parking gear in order to maintain the parked state of the vehicle. For example, Patent Document 1 discloses a parking device including a rod that is driven forward and backward by an actuator, and a cam that is attached to the rod and moves the parking pole between a meshing position and a non-meshing position with the parking gear.

[0003] According to the parking device of Patent Document 1, by driving the rod and the cam by an actuator, the parking pole is moved from the non-meshing position to the meshing position. Thereby, the parking pole meshes with the parking gear, and the rotation of the parking gear can be restricted.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, there may be a case where the parking pole is damaged, such as being broken. In that case, the rotation of the parking gear cannot be restricted. Therefore, there is a need to be able to detect the damage of the parking pole.

[0006] Therefore, an object of the present invention is to be able to detect the damage of the parking pole.

Means for Solving the Problems

[0007] To solve the above problems, the vehicle of the present invention Parking gear and, A parking pawl is mounted on the first drive shaft and is configured to rotate between a first position in which it engages with the parking gear and a second position in which it is disengaged from the parking gear. A rod configured to be movable in the axial direction, A cam attached to the rod rotates the parking pole from the second position to the first position by pressing the parking pole in a direction perpendicular to the axial direction in accordance with the axial movement of the rod, A stopper receiver is provided on the aforementioned rod, A stopper is mounted on the second drive shaft and is configured to rotate between a third position in which it contacts the parking pole and cannot contact the stopper receiver, and a fourth position in which it can contact the stopper receiver. Equipped with, If the parking pole is damaged, the stopper rotates from the third position to the fourth position, and the stopper receiver contacts the stopper that has rotated to the fourth position, thereby restricting the axial movement of the rod. [Effects of the Invention]

[0008] According to the present invention, it becomes possible to detect damage to a parking pole. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a block diagram showing an example of the vehicle configuration according to this embodiment. [Figure 2] Figure 2 is a schematic diagram showing an example of the configuration of the shift device according to this embodiment. [Figure 3] Figure 3 is a schematic diagram showing an example of the configuration of the parking device according to this embodiment. [Figure 4] Figure 4 is an XZ cross-sectional view at the position of the rod of the parking device shown in Figure 3. [Figure 5] FIG. 5 is an XZ cross-sectional view of the parking device in a state where the rod shown in FIG. 4 has moved in the +X direction. [Figure 6] FIG. 6 is a schematic diagram showing the configuration of the parking device in a state where the parking pole shown in FIG. 3 is pressed in the +Z direction. [Figure 7] FIG. 7 is a schematic diagram showing the configuration of the stopper according to the present embodiment. [Figure 8] FIG. 8 is a view taken in the direction of arrow A in FIG. 7. [Figure 9] FIG. 9 is a schematic diagram showing the positional relationship between the stopper receiver and the stopper according to the present embodiment. [Figure 10] FIG. 10 is a cross-sectional view taken along line B-B in FIG. 9. [Figure 11] FIG. 11 is a schematic diagram showing the state after the parking pole shown in FIG. 10 has been moved upward by the cam. [Figure 12] FIG. 12 is a cross-sectional view taken along line C-C in FIG. 11. [Figure 13] FIG. 13 is a schematic diagram showing the positional relationship between the stopper receiver and the stopper in a state where the parking pole is damaged. [Figure 14] FIG. 14 is a cross-sectional view taken along line D-D in FIG. 13. [Figure 15] FIG. 15 is a schematic diagram showing the state after the rod, cam, and stopper receiver shown in FIG. 13 have moved to the +X direction side. [Figure 16] FIG. 16 is a cross-sectional view taken along line E-E in FIG. 15.

BEST MODE FOR CARRYING OUT THE INVENTION

[0010] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The specific dimensions, materials, numerical values, etc. shown in such embodiments are merely examples for facilitating the understanding of the invention and do not limit the present invention unless otherwise specified. In this specification and the drawings, elements having substantially the same functions and configurations are denoted by the same reference numerals to avoid redundant description, and elements not directly related to the present invention are not shown.

[0011] FIG. 1 is a block diagram showing an example of the configuration of a vehicle 1 according to the present embodiment. The vehicle 1 is, for example, a hybrid vehicle having an engine and a motor as drive sources. However, it is not limited thereto, and the vehicle 1 may be, for example, an engine vehicle having only an engine as a drive source or an electric vehicle having only a motor as a drive source. The driving force generated by the drive source is transmitted to the wheels via the transmission of the vehicle 1.

[0012] As shown in FIG. 1, the vehicle 1 includes a shift device 100, a connecting member 200, and a parking device 300. The shift device 100 is a device that switches the shift range of the transmission of the vehicle 1 by operating a shift lever 110. The connecting member 200 is a member that drives the parking device 300 in response to an operation of the shift lever 110. The parking device 300 is a device that restricts the rotation of the wheels of the vehicle 1.

[0013] FIG. 2 is a schematic diagram showing an example of the configuration of the shift device 100 according to the present embodiment. As shown in FIG. 2, the shift device 100 includes a shift lever 110 for switching the shift range of the transmission mounted on the vehicle 1. The shift lever 110 is an example of an operation member operated by a driver boarding the vehicle 1. In FIG. 2, the Z direction indicates the vertical direction, the X direction indicates a predetermined direction in the horizontal direction, and the Y direction indicates a direction orthogonal to the X direction in the horizontal direction. The X direction is, for example, the forward and backward direction of the vehicle 1, and the Y direction is, for example, the left and right direction (vehicle width direction) of the vehicle 1.

[0014] In the shift device 100, the shift lever 110 is configured to be switchable to, for example, a parking range (P range) 120, a reverse range (R range) 130, a neutral range (N range) 140, and a drive range (D range) 150.

[0015] The P range 120 is selected when stopping or parking vehicle 1. The R range 130 is selected when driving vehicle 1 in reverse. The N range 140 is a range in which vehicle 1 does not move forward, reverse, or shift gears, and is selected when the driving force transmitted from the vehicle 1's drive source to the wheels is disconnected. The D range 150 is selected when driving vehicle 1 in forward direction.

[0016] In the shift device 100, the P range 120, R range 130, N range 140, and D range 150 are provided as positions for the shift lever 110 for selecting each range, on a linear path 160 extending in direction D1. In this embodiment, direction D1 is, for example, the X direction. The driver switches the selectable range in the shift device 100 by operating the shift lever 110 in direction D1.

[0017] The connecting member 200 drives the parking device 300 according to the position of the shift lever 110. Details of the connecting member 200 will be described later.

[0018] Figure 3 is a schematic diagram showing an example of the configuration of the parking device 300 according to this embodiment. Figure 4 is an XZ cross-sectional view of the parking device 300 shown in Figure 3 at the position of the rod 330. As shown in Figures 3 and 4, the parking device 300 includes a parking gear 310, a parking pawl 320, a rod 330, a cam 340, a coil spring 350, a regulating member 360, a stopper receiver 370, and a stopper 380.

[0019] The parking gear 310 is mounted on the power transmission shaft 312 of the transmission of the vehicle 1. The power transmission shaft 312 is, for example, the output shaft of the transmission. The power transmission shaft 312 is a shaft member that extends in the X direction. The power transmission shaft 312 transmits the driving force generated by the drive source of the vehicle 1 to the wheels and rotates in conjunction with the wheels. The parking gear 310 also rotates integrally with the power transmission shaft 312. Therefore, the parking gear 310 rotates in conjunction with the wheels of the vehicle 1 via the power transmission shaft 312.

[0020] The parking gear 310 is provided with a plurality of teeth 314. The plurality of teeth 314 are provided at equal intervals on the outer circumference of the parking gear 310. However, it is not limited to this, and the plurality of teeth 314 may be provided at unequal intervals on the outer circumference of the parking gear 310.

[0021] The parking pawl 320 has the function of restricting the rotation of the wheels by meshing with the parking gear 310. The parking pawl 320 is, for example, a rod-shaped member extending in the Y direction. The parking pawl 320 is formed, for example, by press-forming a sheet material such as a metal plate. The parking pawl 320 is rotatably mounted on a shaft 322. The shaft 322 is an example of a first pivot shaft to which the parking pawl 320 is mounted. The shaft 322 is, for example, a shaft member extending in the X direction and is provided in the transmission of the vehicle 1. The shaft 322 is attached to the first end 320a of the parking pawl 320 in the Y direction. The parking pawl 320 is positioned below the parking gear 310 in the Z direction. In addition, at least a portion of the upper surface of the parking pawl 320 is positioned to face the lower side of the outer circumferential surface of the parking gear 310.

[0022] The parking pawl 320 is subjected to a biasing force in the direction away from the parking gear 310, that is, in the direction closer to the rod 330 and cam 340. For example, the parking pawl 320 is subjected to a biasing force in the direction away from the parking gear 310 (clockwise direction in Figure 3) by an elastic member such as a coil spring (not shown).

[0023] The parking pole 320 is provided with a projection 324. The projection 324 is provided on the surface of the parking pole 320 that faces the parking gear 310 in the Z direction (for example, the upper surface in Figure 3), and is provided to protrude in the Z direction. The projection 324 has the function of locking the parking gear 310 by meshing with the teeth 314 of the parking gear 310.

[0024] The rod 330 has the function of moving the cam 340 in response to the operation of the shift lever 110. The rod 330 is, for example, a rod member with a circular cross-section extending in the X direction. The rod 330 is positioned below the parking pole 320 in the Z direction. The rod 330 is configured to be movable in the axial direction, which is the X direction. Hereinafter, the axial direction of the rod 330 may be simply referred to as the "axial direction". In this embodiment, the rod 330 is connected to a connecting member 200 and driven in the X direction by the connecting member 200.

[0025] The cam 340 has the function of moving the parking pole 320 to a first position and a second position in response to the drive of the rod 330. The cam 340 is, for example, a cylindrical member. The cam 340 has a through hole through which the rod 330 is inserted in the axial direction. The cam 340 is attached to the outer circumferential surface of the rod 330 and is configured to slide axially (in the X direction) on the outer circumferential surface of the rod 330. A portion of the cam 340 is positioned to overlap with the parking pole 320 in the Z direction.

[0026] The cam 340 includes a tapered portion 342 having an outer diameter that gradually increases in the axial direction (X direction). The outer diameter of the tapered portion 342 gradually increases in the -X direction. The outer circumferential surface of the tapered portion 342 has a tapered surface formed in a tapered shape.

[0027] The parking pawl 320 is positioned so as to be able to contact the tapered portion 342 of the cam 340. The parking pawl 320 contacts and is pressed against the tapered portion 342 of the cam 340.

[0028] The coil spring 350 is provided around the rod 330. The rod 330 is provided with a restricting member 360. The restricting member 360 includes a first restricting member 362 and a second restricting member 364. The cam 340 and the coil spring 350 are provided between the first restricting member 362 and the second restricting member 364. The first restricting member 362 restricts the movement of the cam 340 and the coil spring 350 in the +X direction. The second restricting member 364 restricts the movement of the cam 340 and the coil spring 350 in the -X direction.

[0029] One end of the coil spring 350 abuts against the cam 340, and the other end of the coil spring 350 abuts against the second restricting member 364. The coil spring 350 compresses when a load greater than a predetermined force is applied to the cam 340 in the -X direction, allowing the cam 340 to move in the -X direction. Conversely, the coil spring 350 extends when a load less than a predetermined force is applied to the cam 340 in the -X direction, biasing the cam 340 in the +X direction. Here, the predetermined force is, for example, the biasing force of the coil spring 350.

[0030] Next, the operation of the shift device 100, the connecting member 200, and the parking device 300 will be described in detail. When the vehicle 1 is stopped or parked, the driver operates the shift lever 110 of the shift device 100 in the +X direction, for example, from the D range 150 to the P range 120.

[0031] At this time, the operating force of the shift lever 110, which is moved in the +X direction, is transmitted to the rod 330 of the parking device 300 via the connecting member 200, and the rod 330 is moved in the +X direction. In other words, the rod 330 and the shift lever 110 move in conjunction with each other in the axial direction. In this embodiment, the connecting member 200 is a rod-shaped member that mechanically connects the shift lever 110 and the rod 330. However, it is not limited to this, and the shift lever 110 may be directly connected to the rod 330 without the connecting member 200 and configured to move integrally with the rod 330.

[0032] When the rod 330 is driven in the +X direction, the cam 340 and coil spring 350, whose movement is restricted by the second restricting member 364, move together with the rod 330 in the +X direction.

[0033] Figure 5 is an XZ cross-sectional view of the parking device 300 with the rod 330 shown in Figure 4 moved in the +X direction. As shown in Figure 5, the cam 340 also moves in the +X direction in accordance with the movement of the rod 330 in the +X direction. Then, the tapered portion 342 of the cam 340 comes into contact with the parking pawl 320 and presses the parking pawl 320 in the +Z direction perpendicular to the +X direction.

[0034] Figure 6 is a schematic diagram showing the configuration of the parking device 300 when the parking pawl 320 shown in Figure 3 is pressed in the +Z direction. As shown in Figure 6, when the parking pawl 320 is pressed in the +Z direction, the parking pawl 320 rotates around the central axis of the shaft 322 in a direction toward the parking gear 310 (for example, counterclockwise in Figure 6), against the biasing force of a coil spring (not shown). At this time, the projection 324 of the parking pawl 320 enters between the multiple teeth 314 of the parking gear 310 and engages with one of the teeth 314. As a result, the parking pawl 320 is positioned in a first position in which the multiple teeth 314 of the parking gear 310 and the projection 324 of the parking pawl 320 mesh. When the parking pawl 320 is positioned in the first position, the shift lever 110 is in the P range 120. Furthermore, when the shift lever 110 is in a range other than the P range 120, it is positioned in a second position in which the multiple teeth 314 of the parking gear 310 and the projection 324 of the parking pawl 320 do not engage. Ranges other than the P range 120 include, for example, the R range 130, N range 140, and D range 150.

[0035] When the parking pole 320 is positioned in the first position, the multiple teeth 314 of the parking gear 310 are restricted from moving in the clockwise and counterclockwise directions, which are the rotational directions of the parking gear 310. This restricts the rotation of the power transmission shaft 312, which rotates integrally with the parking gear 310, and as a result, restricts the rotation of the wheels of the vehicle 1. Therefore, it is possible to prevent the vehicle 1 from moving unintentionally when it is stopped or parked.

[0036] When starting vehicle 1 from a standstill or parking position, the driver operates the shift lever 110 of the shift device 100 in the -X direction, for example, from the P range 120 to the D range 150. At this time, the operating force of the shift lever 110 moving in the -X direction is transmitted to the rod 330 of the parking device 300 via the connecting member 200, and the rod 330, cam 340, and coil spring 350 move in the -X direction.

[0037] As described above, the parking pawl 320 is biased by a coil spring (not shown) in a direction that brings it closer to the rod 330 and the cam 340. Therefore, as shown in Figure 4 compared to Figure 5, the parking pawl 320 moves in the -Z direction as the cam 340 moves in the -X direction due to the biasing force of the coil spring. At this time, as shown in Figure 3 compared to Figure 6, the parking pawl 320 rotates around the central axis of the shaft 322 in a direction that moves it away from the parking gear 310 (for example, clockwise in Figure 3).

[0038] As the parking pawl 320 rotates clockwise, the projection 324 of the parking pawl 320 disengages from the multiple teeth 314 of the parking gear 310, as shown in Figure 3. As a result, the parking pawl 320 is positioned in a second position where the engagement between the multiple teeth 314 of the parking gear 310 and the projection 324 of the parking pawl 320 is released.

[0039] When the parking pole 320 is positioned in the second position, the multiple teeth 314 of the parking gear 310 can move freely in the clockwise and counterclockwise directions, which are the rotational directions of the parking gear 310. This allows the power transmission shaft 312 and the wheels of the vehicle 1 to rotate, making it possible to move the vehicle 1.

[0040] Incidentally, when the parking pawl 320 is moved from the non-engaged position (second position) to the engaged position (first position), the parking gear 310 and the parking pawl 320 may lock in a loosely engaged state. In that case, normally, in response to the movement of the rod 330 in the +X direction, the cam 340 compresses the coil spring 350 and moves relative to the rod 330 in the axial direction (X direction). As a result, even if the rod 330 moves further in the +X direction, the movement of the cam 340 in the +X direction can be suppressed, and as a result, further movement of the parking pawl 320 to the first position due to the movement of the cam 340 in the +X direction can be prevented.

[0041] However, if the coefficient of friction increases locally at the contact surface between the inner surface of the cam 340 and the outer surface of the rod 330, or if a snag occurs, the cam 340 may become unable to move relative to the rod 330. In that case, the cam 340 moves the parking pawl 320 further to the first position, while the movement of the parking pawl 320 is restricted by the teeth 314 of the parking gear 310, which may cause the parking pawl 320 to break.

[0042] Therefore, the parking device 300 of this embodiment includes a stopper receiver 370 and a stopper 380 to restrict the movement of the rod 330 in response to the operation of the shift lever 110, which moves in the +X direction toward the P range, when the parking pole 320 is damaged. Because the movement of the rod 330 is restricted by the stopper receiver 370 and the stopper 380, the movement of the shift lever 110 toward the P range in the +X direction is restricted, so the driver can detect an abnormality in the parking device 300. For example, the driver can recognize that the parking pole 320 is damaged because the shift lever 110 cannot move toward the P range.

[0043] Figure 7 is a schematic diagram showing the configuration of the stopper 380 according to this embodiment. Figure 8 is a view taken along arrow A in Figure 7. As shown in Figures 7 and 8, the stopper 380 includes a first contact portion 382 and a second contact portion 384.

[0044] The stopper 380 is rotatably mounted on the shaft 380a. The shaft 380a is an example of a second pivot shaft to which the stopper 380 is mounted. The shaft 380a is, for example, an axial member extending in the X direction and is provided in the transmission of the vehicle 1. The stopper 380 is positioned on the lower side of the parking pole 320 in the Z direction.

[0045] A biasing force is applied to the stopper 380 in the direction of approaching the parking pole 320. For example, the stopper 380 is subjected to a biasing force in the direction of approaching the parking pole 320 (clockwise direction in Figure 3) by an elastic member such as a coil spring (not shown).

[0046] The first contact portion 382 is the part of the stopper 380 that can come into contact with the parking pole 320. The first contact portion 382 is formed in a flat plate shape. As shown in Figure 7, the width of the first contact portion 382 in the X direction is greater than the width of the second contact portion 384 in the X direction. Also, as shown in Figure 8, the width of the first contact portion 382 in the Y direction is greater than the width of the second contact portion 384 in the Y direction. Furthermore, the height of the first contact portion 382 in the Z direction is lower than the height of the second contact portion 384 in the Z direction.

[0047] The second contact portion 384 is the part of the stopper 380 that can come into contact with the stopper receiver 370. The second contact portion 384 is connected in the X direction to the right end of the first contact portion 382 in the +Y direction. The shaft 380a is inserted through the connection between the first contact portion 382 and the second contact portion 384. The first contact portion 382 has a portion that extends in the -Y direction relative to the connection with the second contact portion 384. The second contact portion 384 has a portion that extends in the -Z direction relative to the connection with the first contact portion 382.

[0048] The first contact portion 382 is attached to the shaft 380a at a different angle from the second contact portion 384. Specifically, the angle between the direction in which the first contact portion 382 extends and the direction in which the second contact portion 384 extends is, for example, 90°. The first contact portion 382 is attached to the shaft 380a rotated relative to the second contact portion 384 in the direction of the coil spring biasing (clockwise direction in Figure 8). This prevents the second contact portion 384 of the stopper 380 from coming into contact with the stopper receiver 370 before the parking pole 320 is damaged.

[0049] As described above, the rod 330 is configured to be movable in the +X direction (first direction) where the cam 340 approaches the parking pole 320 in the axial direction, and in the -X direction (second direction) where it moves away from the parking pole 320. The position of the second contact portion 384 in the axial direction is located on the -X direction (second direction) side relative to the position of the first contact portion 382.

[0050] Figure 9 is a schematic diagram showing the positional relationship between the stopper receiver 370 and the stopper 380 according to this embodiment. Figure 10 is a cross-sectional view of BB in Figure 9. The BB cross-sectional view is a diagram showing the XZ cross-section including the central axis of the rod 330. Note that in Figure 10, the coil spring 350 and the restricting member 360 are omitted for simplicity of explanation. The stopper receiver 370 is configured to restrict the movement of the rod 330 by contacting the stopper 380.

[0051] As shown in Figures 9 and 10, the stopper receiver 370 is attached to the rod 330. The stopper receiver 370 is, for example, cylindrical in shape. The center of the stopper receiver 370 is inserted through the rod 330. The stopper receiver 370 is fixed to the rod 330 and configured to be immovable relative to the rod 330 in the X direction. As shown in Figure 10, the position of the stopper receiver 370 in the axial direction is located on the -X direction (second direction) side with respect to the position of the cam 340.

[0052] As shown in Figure 9, the central part of the parking pole 320 is in contact with the rod 330. Also, the second end 320b of the parking pole 320 is in contact with the upper surface of the first contact portion 382 of the stopper 380. Here, the first end 320a of the parking pole 320 is the end of the parking pole 320 that is pivotally attached to the shaft 322. The second end 320b of the parking pole 320 is the end provided on the opposite side from the first end 320a. As described above, the stopper 380 is subjected to a biasing force in the direction approaching the parking pole 320 (clockwise direction in Figure 9) by a coil spring (not shown). Therefore, the second end 320b of the parking pole 320 is subjected to the biasing force of the coil spring from the first contact portion 382 of the stopper 380 and comes into contact with the first contact portion 382.

[0053] Furthermore, the parking pole 320 is subjected to a biasing force by a coil spring (not shown) in the direction approaching the rod 330 and cam 340 (clockwise direction in Figure 9). The biasing force applied to the parking pole 320 is greater than the biasing force applied by the stopper 380. Therefore, the parking pole 320 is configured not to rotate in the direction away from the rod 330 and cam 340 (counterclockwise direction in Figure 9) due to the biasing force applied by the stopper 380. In other words, the stopper 380 is locked by the parking pole 320, and its rotation in the clockwise direction in Figure 9 is restricted.

[0054] When the second end portion 320b of the parking pole 320 and the first contact portion 382 of the stopper 380 are in contact, the second contact portion 384 is positioned in a non-contact position (third position) where it cannot contact the stopper receiver 370.

[0055] Furthermore, as shown in Figure 10, the position of the second contact portion 384 of the stopper 380 in the axial direction is located on the -X direction (second direction) side with respect to the position of the parking pole 320.

[0056] Figure 11 is a schematic diagram showing the state after the parking pole 320 shown in Figure 10 has been moved upward by the cam 340. Figure 12 is a cross-sectional view of the CC in Figure 11. The CC cross-sectional view shows the XZ cross-section including the central axis of the rod 330.

[0057] As shown in Figure 11, the central part of the parking pawl 320 is in contact with the outer circumferential surface of the cam 340 and is pressed in the +Z direction by the tapered portion 342 of the cam 340. At this time, the parking pawl 320 rotates in a direction away from the rod 330 (counterclockwise in Figure 11) about the central axis of the shaft 322. When the parking pawl 320 rotates between the position in which it engages with the parking gear 310 (first position) and the position in which the engagement between the parking pawl 320 and the parking gear 310 is released (second position), the second contact portion 384 rotates in an axial direction within a range that does not overlap with the stopper receiver 370. In other words, if the parking pawl 320 is not damaged, the stopper 380 is positioned in the third position by contacting and locking against the parking pawl 320. Therefore, if the parking pole 320 is not damaged, the stopper 380 rotates around the shaft 380a in conjunction with the rotation of the parking pole 320 around the shaft 322, within a range where it does not come into contact with the stopper receiver 370.

[0058] As the parking pole 320 rotates, the second end portion 320b of the parking pole 320 moves in the +Z direction. Consequently, the stopper 380, which is in contact with the second end portion 320b, rotates around the central axis of the shaft 380a in the biasing direction of the coil spring (not shown) (counterclockwise direction in Figure 11). At this time, the second contact portion 384 of the stopper 380 moves in a direction closer to the rod 330 and the cam 340. However, the amount of rotation of the stopper 380 is limited by the contact between the second end portion 320b of the parking pole 320 and the first contact portion 382 of the stopper 380. Therefore, the position of the second contact portion 384 can be maintained in a non-contact position (third position) where it cannot contact the stopper receiver 370. Also, as shown in Figure 12, the second contact portion 384 can move to a position that overlaps with the stopper receiver 370 in the Y direction.

[0059] Figure 13 is a schematic diagram showing the positional relationship between the stopper receiver 370 and the stopper 380 when the parking pole 320 is damaged. Figure 14 is a DD cross-sectional view of Figure 13. The DD cross-sectional view is a diagram showing the XZ cross-section including the central axis of the rod 330.

[0060] In the example shown in Figure 13, the central part of the parking pole 320 is broken and damaged, and the central part and the second end 320b of the parking pole 320 have fallen in the -Z direction. As a result, as shown in Figure 13, only the first end 320a of the parking pole 320 is connected to and supported by the shaft 322, and the central part and the second end 320b are missing. With the central part and the second end 320b missing, the parking pole 320 can no longer contact the rod 330 and the cam 340.

[0061] Furthermore, because the second end 320b of the parking pole 320 is missing, the first contact portion 382 of the stopper 380 is not locked by the second end 320b of the parking pole 320, and its rotation in the clockwise direction of Figure 13 is not restricted. Therefore, the stopper 380 rotates in a direction approaching the rod 330 and cam 340 (clockwise direction in Figure 13) due to the biasing force of the coil spring, and the second contact portion 384 comes into contact with the outer circumferential surface of the cam 340. At this time, as the rod 330 moves in the X direction, the second contact portion 384 moves along the outer circumferential surface of the cam 340, similar to the parking pole 320. As the second contact portion 384 comes into contact with the cam 340 and moves along the outer circumferential surface of the cam 340, the second contact portion 384 can be positioned in a contactable position (fourth position) where it can come into contact with the stopper receiver 370.

[0062] As shown in Figure 14, when the second end 320b of the parking pole 320 and the first contact portion 382 of the stopper 380 are not in contact, the second contact portion 384 is positioned in a contactable position (fourth position) that allows it to contact the stopper receiver 370. Thus, the stopper 380 is configured to be rotatable between a third position in which it contacts the parking pole 320 but cannot contact the stopper receiver 370, and a fourth position in which it can contact the stopper receiver 370. The stopper 380 then rotates from the third position to the fourth position if the parking pole 320 is damaged.

[0063] Figure 15 is a schematic diagram showing the state after the rod 330, cam 340, and stopper receiver 370 shown in Figure 13 have moved to the +X direction. Figure 16 is an EE cross-sectional view in Figure 15. The EE cross-sectional view shows the XZ cross-section including the central axis of the rod 330.

[0064] As shown in Figures 15 and 16, after the parking pole 320 is damaged, the stopper receiver 370 comes into contact with the stopper 380 in the axial direction. By coming into contact with the stopper receiver 370, the stopper 380 restricts the movement of the stopper receiver 370 in the +X direction.

[0065] The movement of the stopper receiver 370 in the +X direction is restricted by the stopper 380, which in turn restricts the movement of the rod 330 fixed to the stopper receiver 370 in the +X direction. Consequently, the movement of the connecting member 200 and the shift lever 110 connected to the rod 330 in the +X direction is also restricted. As a result, the movement of the shift lever 110 toward the P range in the +X direction is restricted, allowing the driver to detect an abnormality in the parking device 300. For example, the driver can recognize damage to the parking pole 320 because the shift lever 110 cannot be moved toward the P range. The above example describes how the driver can recognize damage to the parking pole 320 because the shift lever 110 is locked and cannot reach the P range. However, the explanation is not limited to this, and the driver may also recognize damage to the parking pole 320 by notifying them of the lock of the shift lever 110. For example, a sensor may be provided at the part of the second contact portion 384 of the stopper 380 that contacts the stopper receiver 370, and when the second contact portion 384 and the stopper receiver 370 come into contact, the sensor may transmit a signal to a control device (not shown) indicating that the parking pole 320 is damaged. The control device may then notify the driver that the parking pole 320 is damaged, for example, through a notification device (not shown) such as a display or speaker. In such a configuration, the driver can still recognize that the parking pole 320 is damaged.

[0066] As described above, the parking device 300 of this embodiment includes a stopper 380 that is rotatable between a non-contact position (third position) in which it contacts the parking pole 320 but cannot contact the stopper receiver 370, and a contactable position (fourth position) in which it can contact the stopper receiver 370. When the parking pole 320 is damaged, the stopper 380 rotates from the third position to the fourth position, and when the stopper receiver 370 moves axially together with the rod 330, it contacts the stopper 380 which has rotated to the fourth position, thereby restricting the axial movement of the rod 330. Because the movement of the rod 330 is restricted by the stopper receiver 370 and the stopper 380, the movement of the shift lever 110 toward the P range in the +X direction is restricted, so the driver can detect an abnormality in the parking device 300.

[0067] Furthermore, if the parking pole 320 is not damaged, the stopper 380 is positioned in the third position by contacting the parking pole 320, and even if the stopper receiver 370 moves axially together with the rod 330, it will not come into contact with the stopper 380 positioned in the third position, thus not restricting the axial movement of the rod 330. In this way, if the parking pole 320 is not damaged, it is possible to prevent the stopper 380 and the stopper receiver 370 from coming into contact. As a result, the parking pole 320 can be rotated between the first and second positions without restricting the axial movement of the rod 330 in the +X direction.

[0068] Furthermore, if the parking pole 320 is not damaged, the stopper 380 is positioned in the third position by being locked in contact with the parking pole 320, and rotates around the shaft 380a in conjunction with the rotation of the parking pole 320 around the shaft 322, within a range where it does not come into contact with the stopper receiver 370. This prevents the stopper 380 and the stopper receiver 370 from coming into contact while the stopper 380 rotates in conjunction with the rotation of the parking pole 320. As a result, the parking pole 320 can be rotated between the first and second positions without restricting the axial movement of the rod 330 in the +X direction.

[0069] Furthermore, the stopper 380 includes a first contact portion 382 that can contact the parking pole 320 and a second contact portion 384 that can contact the stopper receiver 370. The axial position of the first contact portion 382 is opposite to the parking pole 320, and the second contact portion 384 is positioned axially closer to the stopper receiver 370 than the first contact portion 382. This allows the second contact portion 384 to contact the stopper receiver 370 before the first contact portion 382 and the parking pole 320 come into contact with the stopper receiver 370. Therefore, if the parking pole 320 is damaged, when the rod 330 moves axially, the second contact portion 384 contacts the stopper receiver 370, thereby restricting the axial movement of the rod 330. This restricts the movement of the shift lever 110 toward the P range in the +X direction.

[0070] Furthermore, the rod 330 and the shift lever 110 move in conjunction with each other in the axial direction. By configuring the rod 330 to move in conjunction with the shift lever 110, the movement of the rod 330 is restricted by the stopper receiver 370 and the stopper 380, thereby restricting the movement of the shift lever 110 in the +X direction toward the P range. As a result, the driver can recognize damage to the parking pole 320.

[0071] Embodiments of the present invention have been described above with reference to the attached drawings, but it goes without saying that the present invention is not limited to these embodiments. It will be obvious to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention. [Explanation of Symbols]

[0072] 110 Shift lever 200 Connecting Member 310 Parking gear 320 Parking Pole 330 Rod 340 Cam 370 Stopper receiver 380 Stopper 382 1st contact part 384 Second contact part

Claims

1. Parking gear and, A parking pawl is mounted on the first drive shaft and is configured to rotate between a first position in which it engages with the parking gear and a second position in which it is disengaged from the parking gear. A rod configured to be movable in the axial direction, A cam attached to the rod rotates the parking pole from the second position to the first position by pressing the parking pole in a direction perpendicular to the axial direction in accordance with the axial movement of the rod, A stopper receiver is provided on the aforementioned rod, A stopper is mounted on the second rotating shaft and is configured to rotate between a third position in which it contacts the parking pole and cannot contact the stopper receiver, and a fourth position in which it can contact the stopper receiver. Equipped with, If the parking pole is damaged, the stopper rotates from the third position to the fourth position, and the stopper receiver contacts the stopper that has rotated to the fourth position, thereby restricting the axial movement of the rod. vehicle.

2. If the parking pole is not damaged, the stopper is positioned in the third position by contacting the parking pole, and even if the stopper receiver moves in the axial direction together with the rod, it does not come into contact with the stopper positioned in the third position, and therefore does not restrict the axial movement of the rod. The vehicle according to claim 1.

3. If the aforementioned parking pole is not damaged, The stopper is, By contacting the parking pole, it is positioned in the third position. The parking pole rotates in conjunction with the rotation of the parking pole around the first pivot axis, and rotates around the second pivot axis within a range where it does not come into contact with the stopper receiver. The vehicle according to claim 1 or 2.

4. The stopper is, A first contact portion that can come into contact with the aforementioned parking pole, A second contact portion that can come into contact with the stopper receiver, Includes, The axial position of the first contact portion is a position opposite the parking pole. The second contact portion is positioned in the axial direction closer to the stopper receiving portion than the first contact portion. The vehicle according to claim 3.

5. Shift lever for selecting the transmission shift range Furthermore, The rod and the shift lever move in conjunction with each other in the axial direction. The vehicle according to claim 1 or 2.

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