Shift device

The shift device addresses movement restriction issues by using a biasing and relief mechanism to maintain and release shift positions, ensuring operational flexibility and component protection.

JP7842527B2Active Publication Date: 2026-04-08KK TOKAI RIKA DENKI SEISAKUSHO
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-05-22
Publication Date
2026-04-08

AI Technical Summary

Technical Problem

Existing shift devices face challenges in releasing movement restriction forces acting on the shift body, which can lead to operational limitations and potential damage to components.

Method used

A shift device mechanism incorporating a biasing body with protrusions, a retaining body with recesses, and a biasing member to maintain the shift position, along with a relief mechanism in the force transmission path to release movement restrictions when needed, utilizing a motor-driven moving mechanism and a relief mechanism to adjust the shift position.

Benefits of technology

The mechanism effectively releases movement restrictions on the shift body, simplifies the configuration, and prevents damage to components by allowing the shift body to return to its initial state, enhancing operational flexibility and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

To release movement restriction force acting on a shift body.SOLUTION: In a shift device 10, a rotor cam 40 is rotated in a forward direction A and a transmission surface 40A of the rotor cam 40 presses a rotary surface 44A of a biasing cylinder 24 to rotate the biasing cylinder 24 in the forward direction A and rotate a lever 14 forward. In a case that a rearward load acts on the lever 14, the rotary surface 44A is rotated in a reverse direction B relative to the transmission surface 40A. Thus, the rearward load acting on the lever 14 can be released.SELECTED DRAWING: Figure 5
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Description

Technical Field

[0006] , , moderation , ,

[0001] The present invention relates to a shift device in which a shift body is moved to change the shift position.

Background Art

[0002] In the shift device described in Patent Document 1 below, an adjustment ring transmits a rotational force to an operating element to rotate the operating element.

[0003] Here, in such a shift device, when the rotation of the operating element to which the adjustment ring transmits the rotational force is restricted, it is preferable that the rotational restriction force acting on the operating element can be released.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

Means for Solving the Problems

[0006] The shift device according to the first aspect of the present invention includes a shift body that is moved by an occupant to change the shift position, A biasing body is provided with a plurality of biasing protrusions, a retaining body is provided with a plurality of biasing recesses, and a biasing member is provided to bias the biasing body. The biasing force of the biasing member causes the biasing protrusions of the biasing body to fit into the biasing recesses of the retaining body, thereby maintaining the position of the biasing body. holding the shift body at the shift position moderationThe mechanism comprises: a mechanism; a moving mechanism that transmits a moving force by a motor to the shift body, thereby moving the shift body and changing its shift position; and a relief mechanism provided in a moving force transmission path that transmits the moving force that changes the shift position from the moving mechanism to the shift body, which relieves the movement-restricting force acting on the shift body when the movement of the shift body that changes its shift position is restricted when the moving mechanism transmits the moving force that changes the shift position to the shift body.

[0007] A shift device according to a second aspect of the present invention is a shift device according to a first aspect of the present invention, wherein when the moving mechanism transmits a moving force to the shift body, moderation The mechanism of the shift body Release It will be done.

[0008] A third aspect of the present invention is a shift device in the second aspect of the present invention, wherein when the moving mechanism transmits a moving force to the shift body In the relief mechanism, the biasing body is moved against the biasing force of the biasing member, and the holding of the shift body is released. .

[0009] A shift device according to a fourth aspect of the present invention is a shift device according to any one of the first to third aspects of the present invention, wherein the shift body to which the moving mechanism transmits the moving force The shift position is changed. After the movement is restricted, the movement mechanism is returned to the state before it transmitted the movement force to the shift body. [Effects of the Invention]

[0010] In the shift device of the first aspect of the present invention, the shift body By the crew The shift position is changed as the shift mechanism moves. Motor By transmitting the force of movement, the shift body is moved, and the shift position of the shift body is changed.

[0011] Here, a relief mechanism is provided in the force transmission path that transmits the force from the moving mechanism to the shift body to change the shift position, and the moving mechanism Shift body Transmits the force that changes the shift position. At that time, Movement that changes the shift position of the shift mechanism is restricted. caseThe release mechanism releases the movement restriction force acting on the shift body. Therefore, the movement restriction force acting on the shift body can be released.

[0012] In the shift device according to the second aspect of the present invention, moderation mechanism The device includes a biasing body with multiple biasing protrusions, a holder with multiple biasing recesses, and a biasing member that biases the biasing body. The restraining mechanism uses the biasing force of the biasing member to engage the biasing protrusions of the biasing body with the biasing recesses of the holder, thereby maintaining the position of the biasing body. holds the shift body in the shift position.

[0013] Here, when the movement mechanism transmits the movement force to the shift body, In the relief mechanism, the biasing body moves against the biasing force of the biasing member, and the holding of the shift body is released. . Therefore, moderation it is possible to suppress the mechanism from inhibiting the movement of the shift body.

[0014] In the shift device according to the third aspect of the present invention, when the movement mechanism transmits the movement force to the shift body, In the relief mechanism, the biasing body moves against the biasing force of the biasing member, and the holding of the shift body is released. . Therefore, the configuration can be simplified.

[0015] In the shift device according to the fourth aspect of the present invention, after the movement of the shift body to which the movement mechanism transmits the movement force is restricted, the shift body returns to the state before the movement mechanism transmits the movement force to the shift body. Therefore, it is possible to suppress the movement mechanism from restricting the movement of the shift body.

Brief Description of the Drawings

[0016] [Figure 1] It is a perspective view seen from the right rear diagonal showing the shift device according to the first embodiment of the present invention. [Figure 2] It is a perspective view seen from the right rear diagonal showing the state when the lever in the shift device according to the first embodiment of the present invention is arranged at the "D" position. [Figure 3] It is an exploded perspective view seen from the rear diagonal left showing the shift device according to the first embodiment of the present invention. [Figure 4] It is a perspective view showing the rotor cam etc. of the shift device according to the first embodiment of the present invention. [Figure 5] ​​(A) to (C) are perspective views of the shift device according to the first embodiment of the present invention as seen from the front side. (A) shows the state when the lever is placed at the "D" position, (B) shows the state when the rotor cam transmits the rotational force, and (C) shows the state when a load acts on the lever while the rotor cam is transmitting the rotational force. [Figure 6] (A) and (B) are views showing the rotor cam and the like of the shift device according to the second embodiment of the present invention. (A) is a side view, and (B) is a broken side view. [Figure 7] (A) and (B) are broken side views showing the rotor cam and the like of the shift device according to the second embodiment of the present invention. (A) shows the first stage when the rotor cam transmits the rotational force, and (B) shows the second stage when the rotor cam transmits the rotational force. [Figure 8] (A) and (B) are broken side views showing the rotor cam and the like of the shift device according to the second embodiment of the present invention. (A) shows the first stage when a load acts on the lever while the rotor cam is transmitting the rotational force, and (B) shows the second stage when a load acts on the lever while the rotor cam is transmitting the rotational force.

Embodiments for Carrying Out the Invention

[0017] [First Embodiment] In FIG. 1, the shift device 10 according to the first embodiment of the present invention is shown in a perspective view as seen from the right rear diagonal. In FIG. 3, the shift device 10 is shown in an exploded perspective view as seen from the left rear diagonal. In the drawings, the front of the shift device 10 is indicated by an arrow FR, the right side of the shift device 10 is indicated by an arrow RH, and the upper side of the shift device 10 is indicated by an arrow UP.

[0018] The shift device 10 according to the present embodiment is installed on the console of the vehicle, and the front, right, and upper sides of the shift device 10 are respectively directed toward the front, right, and upper sides of the vehicle.

[0019] As shown in Figure 1, the shift device 10 is provided with a roughly rectangular box-shaped plate 12 (only the left wall of the plate 12 is shown in Figure 1), and the plate 12 is fixed inside the console and its interior is open to the top.

[0020] As shown in Figures 1 and 3, a rod-shaped lever 14 serving as a shift mechanism is provided within the plate 12. Approximately cylindrical support shafts 14A are integrally formed on the left and right sides of the lever 14 in the vertical middle section. These left and right support shafts 14A protrude to the left and right, respectively, and are coaxially positioned with respect to each other. The left and right support shafts 14A are rotatably supported by the left and right walls of the plate 12, respectively, thereby allowing the lever 14 to rotate (move) in the front-rear direction around the pair of support shafts 14A as its central axis.

[0021] The upper portion of the lever 14 rotatably protrudes above the plate 12 and rotatably protrudes above the console (inside the vehicle interior), and a block-shaped knob 14B serving as a gripping portion is integrally provided at the upper end of the lever 14. The lever 14 can be rotated by the vehicle occupant (especially the driver) while gripping the knob 14B, and by rotating the lever 14 (knob 14B) from front to rear, the shift position of the lever 14 is changed in this order to the "P" position (parking position, predetermined position), the "R" position (reverse position), the "N" position (neutral position), and the "D" position (drive position, see Figure 2). The lever 14 is rotatable within the range from the "P" position to the "D" position, and the rotation angle of the lever 14 is the same between each shift position.

[0022] A substantially cylindrical rotating shaft 14C is integrally formed on the right side of the lever 14 in the vertical middle section, and the right support shaft 14A is integrated with the rotating shaft 14C and protrudes coaxially from the rotating shaft 14C. When the lever 14 is rotated forward, the rotating shaft 14C rotates in the forward direction A (see Figure 1, etc.), and when the lever 14 is rotated backward, the rotating shaft 14C rotates in the reverse direction B (see Figure 1, etc.).

[0023] A detection device 16 is connected to the lever 14, and the detection device 16 detects the rotational position of the lever 14 and detects the shift position of the lever 14. The detection device 16 is electrically connected to the vehicle's control device 18, and the vehicle's automatic transmission 20 (gearbox) is electrically connected to the control device 18.

[0024] A detent mechanism 22, which acts as a biasing mechanism, is provided on the right side of the lever 14.

[0025] The damping mechanism 22 is provided with a roughly bottomed cylindrical biasing cylinder 24 as a biasing body, and the inside of the biasing cylinder 24 is open to the left side. The rotation shaft 14C of the lever 14 is coaxially fitted inside the biasing cylinder 24, and the right support shaft 14A of the lever 14 is coaxially inserted through and fitted into the right wall (top wall) of the biasing cylinder 24. The biasing cylinder 24 is made to rotate integrally with respect to the rotation shaft 14C and the right support shaft 14A, and is also made to move (slide) in the left-right direction (axial direction).

[0026] Multiple (four in this embodiment) substantially triangular prism-shaped biasing protrusions 24A are integrally formed on the right surface (top surface) of the biasing cylinder 24, and the biasing protrusions 24A protrude to the right. The biasing protrusions 24A extend in the radial direction of the biasing cylinder 24, and the multiple biasing protrusions 24A are arranged at equal intervals in the circumferential direction of the biasing cylinder 24.

[0027] A roughly rectangular plate-shaped stopper plate 26 is provided on the right side of the biasing cylinder 24 as a holder, and the stopper plate 26 is fixed inside the plate 12 (for example, on the right wall of the plate 12). Multiple biasing recesses 26A with a roughly triangular cross-section are formed on the left side of the stopper plate 26 as biasing parts, and the biasing recesses 26A extend in the radial direction of the stopper plate 26 (the rotational radial direction of the lever 14). The multiple biasing recesses 26A are arranged at equal intervals in the circumferential direction of the stopper plate 26, and the angle of the spacing between each biasing recess 26A is the same as the rotation angle between each shift position of the lever 14.

[0028] A damping spring 28 (compression coil spring) is provided inside the biasing cylinder 24 as a biasing member. The damping spring 28 is stretched between the right side of the rotation axis 14C of the lever 14 and the right wall of the biasing cylinder 24, and the damping spring 28 biases the biasing cylinder 24 to the right.

[0029] When the lever 14 is positioned at each shift position, the biasing force of the damping spring 28 causes the biasing projection 24A of the biasing cylinder 24 to be inserted into the biasing recess 26A of the damping plate 26, and the biasing projection 24A is fitted into the biasing recess 26A in the circumferential direction of the biasing plate 26. This maintains the rotational position of the biasing cylinder 24 and holds the lever 14 at each shift position. When the lever 14 is rotated to change the shift position of the lever 14, the biasing cylinder 24 moves to the left against the biasing force of the damping spring 28, and the biasing projection 24A disengages from the biasing recess 26A. Then, the biasing force of the damping spring 28 causes the biasing cylinder 24 to move to the right, and the biasing projection 24A is inserted into a biasing recess 26A adjacent to the biasing recess 26A. Therefore, a rotational resistance force is applied to the rotational operation of the lever 14, followed by a rotational assist force, which gives the rotational operation of the lever 14 a sense of control.

[0030] A drive mechanism 30, which serves as a moving mechanism, is provided to the right of the lever 14.

[0031] The drive mechanism 30 is equipped with a motor 32 as a drive device, which is fixed to the left wall of the plate 12 and electrically connected to the control device 18. A worm 34 is fixed coaxially to the output shaft of the motor 32, and the motor 32 is driven by the control device 18, causing the worm 34 to rotate.

[0032] A helical gear 36 (worm wheel) meshes with the worm 34, and the helical gear 36 is rotatably supported within the plate 12. A worm gear 38 (worm) is fixed coaxially above the helical gear 36, and as the worm 34 rotates, the helical gear 36 and the worm gear 38 rotate together.

[0033] The outer circumference (worm wheel) of a roughly cylindrical rotor cam 40 is meshed with the worm gear 38, and the biasing cylinder 24 of the damping mechanism 22 is coaxially fitted inside the rotor cam 40. The rotor cam 40 is rotatably supported by the biasing cylinder 24, and its movement in the left-right direction (axial direction) is restricted. The rotor cam 40 is positioned at a reference rotation position (reference position), and the rotor cam 40 is rotated when the worm gear 38 is rotated.

[0034] A relief mechanism 42 (see Figure 4) is provided between the biasing cylinder 24 and the rotor cam 40.

[0035] Multiple transmission surfaces 40A (two in this embodiment) are formed on the inner circumferential portion of the peripheral wall of the rotor cam 40, and these transmission surfaces 40A are arranged at equal intervals in the circumferential direction of the rotor cam 40. The transmission surfaces 40A are oriented to the left, and are inclined to the right as they move toward the positive direction A.

[0036] Multiple (two in this embodiment) substantially rectangular rotating plates 44 are integrally formed on the outer circumferential surface of the biasing cylinder 24, and the multiple rotating plates 44 are arranged at equal intervals in the circumferential direction of the biasing cylinder 24. The rotating plates 44 protrude radially outward from the biasing cylinder 24 and are positioned to the left of the transmission surface 40A of the rotor cam 40. A rotating surface 44A, which acts as a movable part, is formed at the right corner of the rotating plate 44 on the opposite side B, and the rotating surface 44A is oriented to the right. The rotating surface 44A is inclined to the right as it moves toward the positive direction A, and the inclination angle of the rotating surface 44A is the same as the inclination angle of the transmission surface 40A. When the lever 14 is rotated in the range from the "P" position to the "D" position, the rotating surface 44A is separated from the transmission surface 40A toward the positive direction A.

[0037] Next, the operation of this embodiment will be explained.

[0038] In the shift device 10 configured as described above, when the lever 14 is positioned at each shift position, the biasing projection 24A of the biasing cylinder 24 is inserted into the biasing recess 26A of the biasing plate 26 by the biasing force of the biasing spring 28 in the locking mechanism 22, and the lever 14 is held at each shift position (biased toward each shift position).

[0039] When the lever 14 is rotated and its shift position is changed (when the detection device 16 detects the change in the shift position of the lever 14), the control device 18 controls the shift range of the automatic transmission 20 to the shift range corresponding to the shift position of the lever 14.

[0040] Incidentally, when the lever 14 is positioned in a position other than the "P" position (for example, the "D" position, see Figure 5(A)) (when the detection device 16 detects that the lever 14 is positioned in a position other than the "P" position), on a predetermined occasion (for example, when the vehicle's engine is stopped), the shift range of the automatic transmission 20 is automatically changed to the "P" range (parking range) by the control device 18.

[0041] When the lever 14 is positioned in a position other than the "P" position, on predetermined occasions, the motor 32 is driven forward in the drive mechanism 30 under the control of the control device 18, causing the worm 34, helical gear 36, and worm gear 38 to rotate, and the rotor cam 40 to rotate in the forward direction A from the reference rotation position. As a result, in the relief mechanism 42, the transmission surface 40A of the rotor cam 40 presses the rotation surface 44A of the biasing cylinder 24 to the left (see Figure 5(B)), causing the biasing cylinder 24 to move to the left against the biasing force of the damping spring 28, so that the biasing protrusion 24A disengages from the biasing recess 26A, and the lever 14 is released from being held in the shift position. Then, the rotor cam 40 is further rotated in the forward direction A, and the biasing cylinder 24 is rotated in the forward direction A together with the rotor cam 40, with the transmission surface 40A and the rotation surface 44A becoming one, so that the lever 14 is rotated forward to the "P" position, and the shift position of the lever 14 corresponds to the shift range of the automatic transmission 20.

[0042] Furthermore, when the lever 14 is rotated to the "P" position (when the detection device 16 detects the rotation of the lever 14 to the "P" position), the motor 32 is driven in reverse by the control device 18, causing the worm 34, helical gear 36, and worm gear 38 to rotate, and the rotor cam 40 to rotate in the reverse direction B. As a result, the transmission surface 40A of the rotor cam 40 is separated from the rotation surface 44A of the biasing cylinder 24 in the reverse direction B, and the biasing cylinder 24 is moved to the right by the biasing force of the damping spring 28, so that the biasing protrusion 24A is inserted into the biasing recess 26A, and the lever 14 is held in the "P" position. Then, the rotor cam 40 is rotated further in the reverse direction B and returns to the reference rotation position.

[0043] Here, when the lever 14 is rotated forward (to the "P" position) by the drive mechanism 30, if a rearward load (movement limiting force) is applied to the lever 14, and the forward rotation of the lever 14 is limited (including when the lever 14 is rotated backward (see Figure 5(C))), the relief mechanism 42 causes the rotational surface 44A of the biasing cylinder 24 to rotate relative to the transmission surface 40A of the rotor cam 40 in the opposite direction B, and the biasing cylinder 24 moves to the left against the biasing force of the damping spring 28, thereby releasing the rotational force of the biasing cylinder 24 in the opposite direction B relative to the rotor cam 40. As a result, the rearward load applied to the lever 14 can be released, and damage to parts in the rotational force (rotational power) transmission path from the drive mechanism 30 to the lever 14 can be suppressed.

[0044] Furthermore, when the lever 14 is rotated forward by the drive mechanism 30, after the forward rotation of the lever 14 is restricted (after the detection device 16 detects the restriction of the forward rotation of the lever 14 and after the rotational force of the biasing cylinder 24 relative to the rotor cam 40 in the opposite direction B is released), the motor 32 is driven in reverse by the control device 18, and the rotor cam 40 is rotated in the opposite direction B, so that the transmission surface 40A of the rotor cam 40 is separated from the rotation surface 44A of the biasing cylinder 24 in the opposite direction B, and the rotor cam 40 returns to the reference rotation position. This prevents the rearward rotation of the lever 14 from being restricted by the contact of the rotation surface 44A with the transmission surface 40A. Moreover, the biasing cylinder 24 is moved to the right by the biasing force of the stopper spring 28, and the biasing protrusion 24A of the biasing cylinder 24 is inserted into the biasing recess 26A of the stopper plate 26, thereby holding the lever 14 in the shift position.

[0045] Furthermore, when the lever 14 is rotated forward by the drive mechanism 30, the biasing projection 24A of the biasing cylinder 24 is disengaged from the biasing recess 26A of the stopper plate 26 in the stopper mechanism 22, and the retention of the lever 14 in the shift position is released. This prevents (limits) interference between the biasing projection 24A and the biasing recess 26A, and prevents the stopper mechanism 22 from hindering the forward rotation of the lever 14 by the drive mechanism 30.

[0046] Furthermore, when the lever 14 is rotated forward by the drive mechanism 30, the relief mechanism 42 causes the rotor cam 40 (transmission surface 40A) to move the biasing cylinder 24 (rotation surface 44A) to the left against the biasing force of the damping spring 28, thereby releasing the lever 14 from being held in the shift position. As a result, it is not necessary to provide a separate mechanism for releasing the lever 14 from being held in the shift position from the relief mechanism 42, and the configuration of the shift device 10 can be simplified.

[0047] [Second Embodiment] Figure 6(A) shows a side view of the rotor cam 40 and other components of the shift device 50 according to a second embodiment of the present invention, and Figure 6(B) shows a cutaway side view of the rotor cam 40 and other components of the shift device 50.

[0048] The shift device 50 according to this embodiment has substantially the same configuration as that of the first embodiment described above, but differs in the following respects.

[0049] As shown in Figures 6(A) and (B), in the relief mechanism 42 of the shift device 50 according to this embodiment, a plurality of (two in this embodiment) substantially rectangular arrangement holes 52 are formed in the inner circumferential portion of the peripheral wall of the rotor cam 40, and the plurality of arrangement holes 52 are arranged at equal intervals in the circumferential direction of the rotor cam 40. The arrangement holes 52 are open to the left, and the left portion of the arrangement holes 52 is enlarged in the reverse direction B. The surface of the arrangement hole 52 on the reverse direction B side is a pressing surface 40B in the right portion, and the pressing surface 40B is arranged perpendicular to the circumferential direction of the rotor cam 40. The surface of the arrangement hole 52 on the reverse direction B side is a transmission surface 40A in the left portion, and the transmission surface 40A is inclined to the right as it approaches the positive direction A. The surface of the arrangement hole 52 on the opposite side B is a limiting surface 40C located between the pressing surface 40B and the transmission surface 40A. The limiting surface 40C is oriented to the left and positioned perpendicular to the left-right direction (the axial direction of the rotor cam 40).

[0050] The left side of the inner circumferential portion of the peripheral wall of the rotor cam 40 is a detachment surface 40D, which is a detachment portion, in the portion other than the placement hole 52. The detachment surface 40D is oriented to the left and positioned perpendicular to the left-right direction.

[0051] The side of the rotating plate 44 on the opposite side B of the biasing cylinder 24 is the rotating surface 44A, and the rotating surface 44A is positioned perpendicular to the circumferential direction of the biasing cylinder 24. The right side of the rotating plate 44 is the contact surface 44B as the restricted part, and the contact surface 44B is oriented to the right and positioned perpendicular to the left-right direction (axial direction of the biasing cylinder 24). The rotating plate 44 is inserted into the placement hole 52 of the rotor cam 40 from the left side, and the contact surface 44B is positioned to the right of the restricting surface 40C in the placement hole 52. When the lever 14 is rotated in the range from position "P" to position "D", the rotating plate 44 is separated from the forward side A of the placement hole 52 and the pressing surface 40B in the circumferential direction of the biasing cylinder 24.

[0052] Incidentally, on predetermined occasions when the lever 14 is positioned in a position other than the "P" position (for example, the "D" position, see Figure 6(B)), the motor 32 is driven in the forward direction by the control device 18 in the drive mechanism 30, causing the worm 34, helical gear 36 and worm gear 38 to rotate, and the rotor cam 40 to rotate in the forward direction A from the reference rotation position.

[0053] Therefore, in the relief mechanism 42, the pressing surface 40B of the rotor cam 40 (placement hole 52) presses against the rotating surface 44A of the biasing cylinder 24 (rotating plate 44), causing the biasing cylinder 24 to rotate in the positive direction A (see Figure 7(A)). In the damping mechanism 22, the side surface of the biasing projection 24A of the biasing cylinder 24 slides against the side surface of the biasing recess 26A of the damping plate 26, causing the biasing cylinder 24 to move to the left against the biasing force of the damping spring 28 (see Figure 7(B)). Furthermore, the rotating surface 44A is separated from the pressing surface 40B to the left, and the contact surface 44B of the biasing cylinder 24 (rotating plate 44) comes into contact with the limiting surface 40C of the rotor cam 40 (placement hole 52) due to the biasing force of the damping spring 28, thereby restricting the movement of the biasing cylinder 24 to the right and reducing the amount of insertion of the biasing projection 24A into the biasing recess 26A.

[0054] Then, the rotor cam 40 is further rotated in the forward direction A, and the transmission surface 40A of the rotor cam 40 (arrangement hole 52) presses against the rotation surface 44A of the biasing cylinder 24, causing the biasing cylinder 24 to rotate in the forward direction A while being intermittently moved slightly to the left against the biasing force of the damping spring 28 by the contact of the biasing protrusion 24A with the biasing recess 26A (protrusion). As a result, the lever 14 is rotated forward to the "P" position, and the shift position of the lever 14 corresponds to the shift range of the automatic transmission 20.

[0055] Furthermore, when the lever 14 is rotated to the "P" position, the motor 32 is driven in reverse by the control device 18, causing the worm 34, helical gear 36, and worm gear 38 to rotate, and the rotor cam 40 to rotate in the reverse direction B. As a result, the limiting surface 40C of the rotor cam 40 is disengaged from the contact surface 44B of the biasing cylinder 24 in the reverse direction B, and the biasing cylinder 24 is moved to the right by the biasing force of the damping spring 28, so that the biasing projection 24A is inserted into the biasing recess 26A, and the lever 14 is held in the "P" position. Then, the rotor cam 40 is rotated further in the reverse direction B and returns to the reference rotation position.

[0056] Here, when the lever 14 is rotated forward (to the "P" position) by the drive mechanism 30, if a load (movement limiting force) is applied to the lever 14 to the rear, and the forward rotation of the lever 14 is limited (including when the lever 14 is rotated to the rear), the relief mechanism 42 causes the rotation surface 44A of the biasing cylinder 24 to rotate relative to the transmission surface 40A of the rotor cam 40 in the opposite direction B, causing the biasing cylinder 24 to move to the left against the biasing force of the damping spring 28 (see Figure 8(A)). As a result, the rotation surface 44A is separated from the transmission surface 40A to the left, and the contact surface 44B of the biasing cylinder 24 comes into contact with the separation surface 40D of the rotor cam 40 due to the biasing force of the damping spring 28 (see Figure 8(B)). Therefore, the relative rotation of the biasing cylinder 24 in the opposite direction B with respect to the rotor cam 40 is permitted, and the rotational force of the biasing cylinder 24 in the opposite direction B with respect to the rotor cam 40 is relieved.

[0057] Furthermore, when the lever 14 is rotated forward by the drive mechanism 30, after the forward rotation of the lever 14 is restricted (after the detection device 16 detects the restriction of the forward rotation of the lever 14 and after the rotational force of the biasing cylinder 24 on the rotor cam 40 in the opposite direction B is released), the motor 32 is driven in reverse by the control device 18, and the rotor cam 40 is rotated in the opposite direction B. As a result, the release surface 40D of the rotor cam 40 is separated from the contact surface 44B of the biasing cylinder 24 in the opposite direction B, and then the limiting surface 40C of the rotor cam 40 is separated from the contact surface 44B of the biasing cylinder 24 in the opposite direction B, and the rotor cam 40 returns to the reference rotation position.

[0058] As described above, this embodiment can achieve the same effects and advantages as the first embodiment.

[0059] In particular, when the lever 14 is rotated forward by the drive mechanism 30, the damping mechanism 22 reduces the insertion amount of the biasing projection 24A of the biasing cylinder 24 into the biasing recess 26A of the damping plate 26, thereby releasing the lever 14 from being held in the shift position. As a result, interference between the biasing projection 24A and the biasing recess 26A can be suppressed (limited), and the damping mechanism 22 can be prevented from hindering the forward rotation of the lever 14 by the drive mechanism 30.

[0060] Furthermore, when the lever 14 is rotated forward by the drive mechanism 30, the relief mechanism 42 causes the rotor cam 40 (pressing surface 40B) to press the biasing cylinder 24 (rotating surface 44A) in the forward direction A, causing the biasing cylinder 24 to move to the left against the biasing force of the damping spring 28, thereby releasing the lever 14 from being held in the shift position. As a result, it is not necessary to provide a separate mechanism for releasing the lever 14 from being held in the shift position from the relief mechanism 42, and the configuration of the shift device 10 can be simplified.

[0061] In the first and second embodiments described above, the damping mechanism 22 is provided with a biasing projection 24A on the biasing cylinder 24 and a biasing recess 26A on the damping plate 26. However, in the damping mechanism 22, the biasing recess 26A may be provided on the biasing cylinder 24 and the biasing projection 24A on the damping plate 26.

[0062] Furthermore, in the first and second embodiments described above, when the lever 14 is rotated forward by the drive mechanism 30, the relief mechanism 42 causes the rotor cam 40 (transmission surface 40A or pressing surface 40B) to press the biasing cylinder 24 (rotating surface 44A) in the forward direction A, thereby moving the biasing cylinder 24 to the left against the biasing force of the damping spring 28, and releasing the lever 14 from being held in the shift position. However, when the lever 14 is rotated forward by the drive mechanism 30, a mechanism other than the relief mechanism 42 may move the biasing cylinder 24 to the left against the biasing force of the damping spring 28, thereby releasing the lever 14 from being held in the shift position.

[0063] Furthermore, in the first and second embodiments described above, the lever 14 (shift body) is rotated. However, the shift body may slide or rotate around its central axis.

[0064] Furthermore, in the first and second embodiments described above, the shift devices 10 and 50 are installed on the console. However, the shift devices 10 and 50 may also be installed on the instrument panel or the steering column. [Explanation of Symbols]

[0065] 10...Shift mechanism, 14...Lever (shift body), 22...Pressure mechanism (biasing mechanism), 30...Drive mechanism (movement mechanism), 42...Relief mechanism, 50...Shift mechanism

Claims

1. A shift mechanism whose position is changed by being moved by the occupant, A biasing body is provided with a plurality of biasing protrusions, a holder is provided with a plurality of biasing recesses, and a biasing member is provided for biasing the biasing body, the biasing force of the biasing member causes the biasing protrusions of the biasing body to fit into the biasing recesses of the holder, thereby maintaining the position of the biasing body and holding the shift body in the shift position, a stopper mechanism, A moving mechanism that transmits a moving force from a motor to the shift body, thereby moving the shift body and changing the shift position of the shift body, A relief mechanism is provided in the force transmission path that transmits a force from the moving mechanism to the shift body to change the shift position, and when the movement of the shift body to change the shift position is restricted when the moving mechanism transmits a force to the shift body to change the shift position, the relief mechanism releases the movement restricting force acting on the shift body. A shift device equipped with a shift mechanism.

2. The shift device according to claim 1, wherein the holding mechanism releases the shift body when the moving mechanism transmits a moving force to the shift body.

3. The shift device according to claim 2, wherein when the moving mechanism transmits a moving force to the shift body, the relief mechanism moves the biasing body against the biasing force of the biasing member, thereby releasing the holding of the shift body.

4. A shift device according to any one of claims 1 to 3, wherein the movement of the moving mechanism is restricted to change the shift position of the shift body to which the moving force is transmitted, and the moving mechanism returns to the state before it transmitted the moving force to the shift body.

Citation Information

Patent Citations

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