Shift device

Abstract

To decrease the number of lock bodies.SOLUTION: In a shift device 10, blockers 34 lock turning of a lever, where a driving gear 28 is rotated, so that the blockers 34 are stopped at an N-lock position, a P-lock position and a release position. This can increase modes in which the blockers 34 lock turning of the lever, which can decrease the number of the blockers 34.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a shift device in which a lock body locks the movement of a shift body. [Background technology]

[0002] In the shift device described in Patent Document 1 below, a lock bar locks the movement of the shift lever.

[0003] Here, in this shift device, the lock bar is moved while being stopped at two positions by rotating the cam. Furthermore, two lock bars are provided. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-119350 A Summary of the Invention [Problem to be solved by the invention]

[0005] In consideration of the above, an object of the present invention is to provide a shift device capable of reducing the number of locking bodies. [Means for solving the problem]

[0006] The shift device of the first aspect of the present invention includes a shift body that is moved to change a shift position, a rotating body that is rotated, and a locking body that is moved and stopped at three or more positions as the rotating body is rotated, and that locks the movement of the shift body.

[0007] A second aspect of the shift device of the present invention is the shift device of the first aspect of the present invention, wherein the locking body is stopped at a position that does not lock the movement of the shift body, a position that locks the movement of the shift body from the first shift position, and a position that locks the movement of the shift body from the second shift position.

[0008] A shift device of a third aspect of the present invention is the shift device of the first or second aspect of the present invention, in which a stop position of the lock body is changed to change an engagement mode of the lock body with the shift body.

[0009] A shift device of a fourth aspect of the present invention is the shift device of any one of the first to third aspects of the present invention, wherein the rotating body limits movement of the lock body from a stop position.

[0010] A fifth aspect of the present invention relates to the shift device of the fourth aspect of the present invention, and further relates to a shift device in which the rotor is configured to restrict movement of the lock body from a stop position within a predetermined rotation range.

[0011] A sixth aspect of the present invention relates to the shift device of any one of the first to fifth aspects of the present invention, and further includes a restricting portion that restricts movement of the lock body from a stop position. Effect of the Invention

[0012] In the shift device according to the first aspect of the present invention, the shift body is moved to change the shift position, and the lock body locks the movement of the shift body.

[0013] Here, by rotating the rotating body, the locking body is moved while being stopped at three or more positions, which increases the number of stopping positions of the locking body and reduces the number of locking bodies.

[0014] In the shift device of the second aspect of the present invention, the locking body is stopped at a position where the movement of the shift body is not locked, a position where the movement of the shift body from the first shift position is locked, and a position where the movement of the shift body from the second shift position is locked, thereby increasing the number of ways in which the locking body can lock the movement of the shift body.

[0015] In the shift device according to the third aspect of the present invention, the stop position of the lock body is changed, and the manner in which the lock body engages with the shift body is changed, thereby increasing the number of ways in which the lock body can lock the movement of the shift body.

[0016] In the shift device according to the fourth aspect of the present invention, the rotor limits the movement of the lock body from the stop position, so that the lock body can be stopped at the stop position with high accuracy.

[0017] In the shift device according to the fifth aspect of the present invention, the movement of the lock body from the stop position is restricted within a predetermined rotation range of the rotor, so that the rotor can stop the lock body at the stop position with higher accuracy.

[0018] In the shift device according to the sixth aspect of the present invention, the restricting portion restricts the movement of the lock body from the stop position, so that the lock body can be stopped at the stop position with high accuracy. [Brief description of the drawings]

[0019] [Figure 1] 1A and 1B are perspective views showing a shift device according to an embodiment of the present invention, where 1A is a view seen from the rear, and 1B is a view seen from diagonally rear left. [Diagram 2] 1 is a perspective view seen from diagonally front left, illustrating a state in which rotation of the lever from the P position is locked in the shift device according to the embodiment of the present invention. FIG. [Diagram 3] 1 is a perspective view seen from diagonally front right, illustrating a state in which rotation of the lever from the N position is locked in the shift device according to the embodiment of the present invention. FIG. [Figure 4] 1A and 1B are top views showing a shifting device according to an embodiment of the present invention, where 1A shows the lever being locked against rotation from the P position, and 1B shows the lever being locked against rotation from the N position. [Diagram 5] 1A and 1B are perspective views showing a blocker and a drive gear when the rotation of the lever from the P position is locked in a shift device according to an embodiment of the present invention, where (A) is a view from above, (B) is a view from diagonally forward left, and (C) is a perspective view from above showing the drive gear of the shift device according to an embodiment of the present invention. [Figure 6]1A and 1B are perspective views showing a blocker and a drive gear when the rotation of the lever from the N position is locked in a shift device according to an embodiment of the present invention, where 1A is a view from the left diagonal front and 1B is a view from below. [Figure 7] (A) to (D) are top views showing the blocker and drive gear of a shift device according to an embodiment of the present invention, where (A) shows the state when the lever is not locked against rotation, (B) shows a first state when the lever is locked against rotation from the P position, (C) shows a second state when the lever is locked against rotation from the P position, and (D) shows the state when the lever is locked against rotation from the N position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Fig. 1(A) shows a perspective view of a shift device 10 according to an embodiment of the present invention as seen from the rear, and Fig. 1(B) shows a perspective view of the shift device 10 as seen from diagonally rear left. In the drawings, the front of the shift device 10 is indicated by an arrow FR, the right 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.

[0021] The shift device 10 according to this embodiment is of a so-called column type and is installed on the steering column of the vehicle, with the front, right and upper sides of the shift device 10 facing respectively toward the front, right and upper sides of the vehicle.

[0022] 1(A) and 1(B), the shift device 10 is provided with a substantially rectangular parallelepiped box-shaped housing 12 serving as a fixed body, and the housing 12 is fixed to a steering column, so that the shift device 10 is installed on the steering column. The housing 12 is configured by assembling an upper housing 12A on the upper side and a lower housing 12B on the lower side, and the upper housing 12A constitutes the upper side of the lower wall of the housing 12, and the lower housing 12B constitutes the lower wall of the housing 12.

[0023] A substantially rectangular parallelepiped support 14 is provided on the right side inside the housing 12 , and the support 14 is fixed inside the housing 12 .

[0024] A lever 16 in the shape of a substantially L-shape rod is supported on the support 14 as a shift body. A base end portion of the lever 16 is a central axis 16A, which extends in the left-right direction. A right portion of the central axis 16A is rotatably supported on the support 14, and a left portion of the central axis 16A protrudes to the left side of the housing 12. A tip portion of the lever 16 extends rearward from the left end of the central axis 16A, and the lever 16 is rotatable (movable) within a predetermined range in the vertical direction around the central axis 16A. The tip portion of the lever 16 extends rotatably in the vertical direction into the vehicle interior, and the lever 16 is rotatable in the vertical direction by an occupant while holding the tip portion (rear end portion). In addition, by rotating the lever 16 from the top to the bottom, the shift position of the lever 16 is changed to a P position (park position), an R position (reverse position), an N position (neutral position), and a D position (drive position), in that order, as a first shift position.

[0025] An upper portion of a plate-shaped detent plate 18 (see Figs. 2 and 3) serving as a locked member is fixed to the lever 16 at the left portion of the central shaft 16A, and the detent plate 18 rotates together with the rotation of the lever 16 (rotation of the central shaft 16A). The detent plate 18 protrudes downward from the central shaft 16A and is disposed vertically in the left-right direction. When the lever 16 rotates downward, the detent plate 18 rotates forward, and when the lever 16 rotates upward, the detent plate 18 rotates rearward. A detent hole 18A is formed penetrating the lower portion of the detent plate 18, and the detent hole 18A extends in the direction of rotation of the detent plate 18. A rectangular N hole 18B serving as a locked portion is formed penetrating the detent plate 18 above the detent hole 18A, and the N hole 18B expands the detent hole 18A upward.

[0026] A locking device 20 (see FIG. 2) is provided around the periphery of the central shaft 16A in the left-right direction middle portion, and the locking device 20 is provided with a drive mechanism 22. A motor 24 (see FIG. 4(B)) serving as a drive device is provided in the drive mechanism 22, and the motor 24 is fixed inside the housing 12 below the central shaft 16A. A worm 26 is coaxially fixed to the output shaft of the motor 24, and the worm 26 rotates integrally with the output shaft. The motor 24 is electrically connected to a control device 42 of the vehicle, and the motor 24 is driven under the control of the control device 42.

[0027] A drive gear 28 (see FIG. 5(C)) is disposed on the left side of the worm 26. The drive gear 28 is rotatably supported within the housing 12 and has an axial direction that faces up and down. A worm wheel 30 is coaxially provided on the upper part of the drive gear 28, and the worm wheel 30 meshes with the worm 26. The worm 26 regulates the rotation of the worm wheel 30 (drive gear 28). When the motor 24 is driven and the worm 26 is rotated, the drive gear 28 rotates in a locking direction A and an unlocking direction B (see FIG. 4(B) and the like).

[0028] A magnet (not shown) serving as a detected part is fixed to the lower end of drive gear 28, and the magnet rotates integrally with drive gear 28. A circuit board 44 (see FIG. 4(B)) serving as a detection part is fixed to the lower end inside housing 12 (above lower housing 12B), and circuit board 44 is electrically connected to control device 42. Circuit board 44 is disposed below the magnet of drive gear 28, and detects the direction of the magnetic field generated by the magnet of drive gear 28 to detect the rotational position of drive gear 28.

[0029] Three (a predetermined number) cylindrical pins 32 (see Figs. 7A to 7D) serving as engagement portions are provided in the vertical middle of the drive gear 28. The pins 32 are arranged parallel to the axial direction of the drive gear 28, and the three pins 32 are arranged at equal intervals in the circumferential direction of the drive gear 28. The three pins 32 are a first pin 32A, a second pin 32B, and a third pin 32C, and the first pin 32A, the second pin 32B, and the third pin 32C are arranged in this order in the release direction B.

[0030] A blocker 34 (see FIGS. 3, 4A and 4B) is provided on the front side of the drive gear 28 as a locking body.

[0031] The blocker 34 is provided with a blocker body 36 as a movable body, and the blocker body 36 is supported in the housing 12 so as to be movable (slidable) in the left-right direction, thereby allowing the blocker 34 to move in the left-right direction. A stopper 46 (see FIG. 7(A)) as a restricting part is fixed in the housing 12 on the right side of the blocker 34, and the blocker 34 abuts against the stopper 46, restricting the movement of the blocker 34 to the right.

[0032] A substantially rectangular movable plate 36A is provided at the rear portion of the blocker body 36, and the movable plate 36A is disposed vertically in the up-down direction. An engagement groove 38 (see (A) to (D) of FIG. 7) of a predetermined shape is formed as an engaged portion in the rear portion of the movable plate 36A, and the engagement groove 38 is open to the rear side of the movable plate 36A. The front side of the left part of the engagement groove 38 is the first movable groove 38A, and the first movable groove 38A extends in the front-rear direction. The rear side of the first movable groove 38A is the first stop groove 38B, and the first stop groove 38B is connected to the first movable groove 38A. The first stop groove 38B is curved in a convex shape to the left, and the first stop groove 38B is open to the rear side of the movable plate 36A. The front side of the left-right direction intermediate part of the engagement groove 38 is the second movable groove 38C, and the second movable groove 38C extends in the front-rear direction. The rear side of the second moving groove 38C is the second stop groove 38D, and the second stop groove 38D is connected to the second moving groove 38C. The second stop groove 38D is curved convexly to the left, and the second stop groove 38D is open to the rear side of the moving plate 36A. The right part of the engagement groove 38 is the third stop groove 38E, and the third stop groove 38E is disposed to the right of the second stop groove 38D and is connected to the second stop groove 38D. The third stop groove 38E is curved convexly to the right, and the second stop groove 38D is open to the rear side of the moving plate 36A.

[0033] The drive gear 28 is positioned at a first rotational position R1 (see FIG. 7(A)), and the first pin 32A of the drive gear 28 engages (fits) with the first moving groove 38A of the blocker 34 (engagement groove 38), so that the blocker 34 is positioned in the release position and its movement to the right is restricted by the stopper 46.

[0034] The drive gear 28 is rotatable to the second rotation position R2 (a position rotated 72.5° from the first rotation position R1 in the lock direction A in this embodiment) (see FIG. 7(B)). When the drive gear 28 rotates in a rotation range from the first rotation position R1 to the second rotation position R2, the first pin 32A of the drive gear 28 is rotated in a state engaged with the first moving groove 38A of the blocker 34 (engagement groove 38), and the first moving groove 38A is moved by the first pin 32A. Therefore, the drive gear 28 is rotated in the lock direction A, and the blocker 34 is moved to the left, and the drive gear 28 is rotated in the release direction B, and the blocker 34 is moved to the right. In addition, when the drive gear 28 is disposed in the second rotation position R2, the blocker 34 is disposed in the P lock position as the first lock position, and the movement in the left-right direction is restricted by the first pin 32A.

[0035] The drive gear 28 is rotatable to a third rotation position R3 (a position rotated 120° in the lock direction A from the first rotation position R1 in this embodiment) (see FIG. 7(C)). When the drive gear 28 rotates in a predetermined rotation range (hereinafter referred to as the "first rotation range") from the second rotation position R2 to the third rotation position R3, the first pin 32A of the drive gear 28 is engaged (fitted) with the first stop groove 38B of the blocker 34 (engagement groove 38) and rotates along the first stop groove 38B, so that the first stop groove 38B is not moved by the first pin 32A. Therefore, even if the drive gear 28 rotates in the lock direction A and the release direction B, the blocker 34 is not moved in the left-right direction from the P lock position, and the movement in the left-right direction is restricted by the first pin 32A. Furthermore, when the drive gear 28 is disposed in the third rotation position R3, the second pin 32B of the drive gear 28 engages with (comes into contact with) the second movement groove 38C of the blocker 34 (engagement groove 38) (abuts against the peripheral surface of the second movement groove 38C).

[0036] The drive gear 28 is rotatable to a fourth rotation position R4 (a position rotated 192.5° from the first rotation position R1 in the lock direction A in this embodiment) (see FIG. 7(D)). When the drive gear 28 rotates in a rotation range from the third rotation position R3 to the fourth rotation position R4, the second pin 32B of the drive gear 28 is rotated in a state of being engaged (fitted) with the second movement groove 38C of the blocker 34 (engagement groove 38), and the second movement groove 38C is moved by the second pin 32B. Therefore, the drive gear 28 is rotated in the lock direction A, and the blocker 34 is moved to the left, and the drive gear 28 is rotated in the release direction B, and the blocker 34 is moved to the right. In addition, when the drive gear 28 is disposed in the fourth rotation position R4, the blocker 34 is disposed in the N lock position as the second lock position, and the movement in the left-right direction is restricted by the second pin 32B. Furthermore, when the drive gear 28 is positioned in the fourth rotation position R4, the second pin 32B and the third pin 32C of the drive gear 28 engage with the second stop groove 38D and the third stop groove 38E, respectively, of the blocker 34 (engagement groove 38) (abut against the peripheral surfaces of the second moving groove 38C and the third stop groove 38E).

[0037] The drive gear 28 is rotatable in the lock direction A from the fourth rotation position R4, and when the drive gear 28 rotates from the fourth rotation position R4 through a predetermined rotation range (hereinafter referred to as the "second rotation range") on the lock direction A side, the second pin 32B and the third pin 32C of the drive gear 28 are engaged with the second stop groove 38D and the third stop groove 38E of the blocker 34 (engagement groove 38) (contacting the peripheral surfaces of the second movement groove 38C and the third stop groove 38E), respectively, and rotate along the second stop groove 38D and the third stop groove 38E, so that the second stop groove 38D and the third stop groove 38E are not moved by the second pin 32B and the third pin 32C. Therefore, even if the drive gear 28 rotates in the lock direction A and the release direction B, the blocker 34 does not move in the left-right direction from the N-lock position, and the left-right movement is restricted by the second pin 32B and the third pin 32C.

[0038] A generally rectangular columnar lock bar 40 serving as a locking member is supported on the front left side of the blocker body 36, and extends parallel to the left and right direction and to the left from the blocker body 36. A rectangular columnar P protrusion 40A serving as a first locking portion is provided on the left end of the lock bar 40, and the P protrusion 40A protrudes to the left. A rectangular columnar N protrusion 40B serving as a second locking portion is provided in the middle of the lock bar 40 in the left and right direction, and the N protrusion 40B protrudes upward to the right of the P protrusion 40A.

[0039] Next, the operation of this embodiment will be described.

[0040] In the shift device 10 having the above-described configuration, in the drive mechanism 22, the motor 24 is driven to rotate the worm 26, thereby rotating the drive gear 28 in the locking direction A and the releasing direction B, and moving the blocker 34 to the left and right, respectively.

[0041] When the lever 16 is disposed in the P position, the drive gear 28 is rotated from the first rotational position R1 into the first rotational range (the rotational range from the second rotational position R2 to the third rotational position R3) and the blocker 34 is moved from the release position to the P lock position (see FIGS. 5A and 5B), and the P protrusion 40A of the lock bar 40 of the blocker 34 is disposed in front of the detent plate 18 of the lever 16 (see FIGS. 2 and 4A). Therefore, the lock bar 40 locks the detent plate 18 from rotating forward, thereby locking the lever 16 from rotating downward, and thus locking the lever 16 from rotating from the P position to the R position.

[0042] On the other hand, when the lever 16 is disposed in the P position, when the drive gear 28 is rotated from the first rotation range to the first rotation position R1 and the blocker 34 is moved from the P lock position to the release position, the lock bar 40 of the blocker 34 is disposed to the right of the detent plate 18 of the lever 16. Therefore, the lock bar 40 releases the lock on the detent plate 18 preventing it from rotating forward, thereby releasing the lock on the lever 16 preventing it from rotating downward, and thus releasing the lock on the lever 16 preventing it from rotating from the P position to the R position.

[0043] When the lever 16 is disposed at the N position, the drive gear 28 is rotated from the first rotational position R1 to the second rotational range (the rotational range from the fourth rotational position R4 to the locking direction A side) and the blocker 34 is moved from the release position to the N-locked position (see FIGS. 6A and 6B), the lock bar 40 of the blocker 34 is inserted into the detent hole 18A of the detent plate 18 of the lever 16, and the N protrusion 40B of the lock bar 40 is inserted (fitted) into the N hole 18B of the detent hole 18A (see FIGS. 3 and 4B). Therefore, the lock bar 40 locks the rotation of the detent plate 18 forward and backward, thereby locking the rotation of the lever 16 downward and upward, and locking the rotation of the lever 16 from the N position to the D position and the R position.

[0044] On the other hand, when the lever 16 is disposed at the N position, when the drive gear 28 is rotated from the second rotation range to the first rotation position R1 and the blocker 34 is moved from the N locked position to the unlocked position, the lock bar 40 of the blocker 34 is disposed to the right of the detent plate 18 of the lever 16. Therefore, the lock of the detent plate 18 against rotation forward and backward by the lock bar 40 is released, whereby the lock of the lever 16 against rotation downward and upward is released, and the lock of the lever 16 against rotation from the N position to the D position and the R position is released.

[0045] When the drive gear 28 is rotated from the first rotation range or the second rotation range to the first rotation position R1, the blocker 34 is moved from the P lock position or the N lock position to the release position and abuts against the stopper 46, whereby the lock current flowing through the motor 24 is detected and the drive of the motor 24 is stopped under the control of the control device 42.

[0046] In addition, when the drive gear 28 is rotated from the first rotation position R1 to the first rotation range or the second rotation range, the circuit board 44 detects that the drive gear 28 has been rotated to the first rotation range or the second rotation range, and the drive of the motor 24 is stopped under the control of the control device 42.

[0047] Here, when the drive gear 28 rotates from the second rotation range to the first rotation position R1, the blocker 34 is stopped at the N lock position in the second rotation range of the drive gear 28, and at the P lock position in the first rotation range of the drive gear 28, and at the release position in the first rotation position R1 of the drive gear 28. This makes it possible to increase the number of stopping positions of the blocker 34, increase the number of locking modes of the rotation of the lever 16 (detent plate 18) by the blocker 34 (lock bar 40), and reduce the number of blockers 34.

[0048] Furthermore, the blocker 34 (lock bar 40) is stopped at an unlocked position where the rotation of the lever 16 is not locked, a P lock position where the rotation of the lever 16 from the P position is locked, and an N lock position where the rotation of the lever 16 from the N position is locked. This allows the blocker 34 to lock the rotation of the lever 16 in many different ways.

[0049] Furthermore, the stop position of the blocker 34 is changed, and the manner in which the blocker 34 (lock bar 40) engages with the lever 16 (detent plate 18) is changed. This makes it possible to lock the rotation of the lever 16 by the blocker 34 in many different ways.

[0050] Furthermore, the blocker 34 is stopped at the P lock position and the N lock position in the first rotation range and the second rotation range of the drive gear 28, respectively. This reduces the need to increase the accuracy of the stop position of the blocker 34 when the drive of the motor 24 is stopped, and the blocker 34 can be stopped at the P lock position and the N lock position with high accuracy.

[0051] Furthermore, in the first and second rotation ranges of the drive gear 28, the drive gear 28 (pin 32) limits the movement of the blocker 34 (engagement groove 38) from the P lock position and the N lock position, respectively. Therefore, the blocker 34 can be stopped at the P lock position and the N lock position with high accuracy.

[0052] Moreover, the stopper 46 restricts the blocker 34 from moving rightward from the release position, so that the blocker 34 can be stopped at the release position with high accuracy.

[0053] In this embodiment, the blocker 34 is stopped at three positions (N lock position, P lock position, and release position) when the drive gear 28 is rotated. However, the blocker 34 may be stopped at four or more positions when the drive gear 28 is rotated.

[0054] In this embodiment, the lever 16 (shift body) is rotated. However, the shift body may be rotated (moved) or slid (moved) around the central axis.

[0055] Furthermore, in this embodiment, the shift device 10 is mounted on the steering column. However, the shift device 10 may also be mounted on the console or instrument panel. [Explanation of symbols]

[0056] 10 shift device, 16 lever (shift body), 28 drive gear (rotating body), 34 blocker (lock body), 46 stopper (regulating portion)

Claims

1. A shift body that is moved to change the shift position; A rotating body to be rotated; a lock body that is moved and stopped at three or more positions by the rotation of the rotating body and that locks the movement of the shift body; A shift device comprising:

2. 2. The shift device according to claim 1, wherein the locking body is stopped at a position where the movement of the shift body is not locked, at a position where the movement of the shift body from the first shift position is locked, and at a position where the movement of the shift body from the second shift position is locked.

3. 2. The shift device according to claim 1, wherein a stop position of the lock body is changed to change an engagement mode of the lock body with the shift body.

4. 2. The shift device according to claim 1, wherein the rotor limits movement of the locking body from a stop position.

5. 5. The shift device according to claim 4, wherein the rotational body restricts movement of the locking body from the stop position within a predetermined rotational range.

6. The shift device according to claim 1 , further comprising a restricting portion that restricts movement of the lock body from the stop position.

Images