JPH07323747A - Shift lock device of shift lever device for transmission - Google Patents

Abstract

PURPOSE:To obtain the shift lock device of a shift lever device by which a assembly property and precision control becomes easy and the application range to a different car kind IS expanded. CONSTITUTION:A shift lock device 30 is used for a gate type shift lever device 10 and a pair of stopper links 34, 36, a solenoid 44 and a P position detection switch 48 for constituting this are assembled into a bracket 32 so as to make a single unit. Therefore, the assembly property is improved and the precision control also becomes easy at the time of application to the shift lever device 10 and also the commonalization and standardization of parts or the automation of assembly can be carried out so that the cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lock device used in a shift lever device for shifting a transmission and restraining a shift operation of the shift lever at a specific shift position. The present invention relates to a so-called gate (zigzag operation) type shift lever device shift lock device configured to perform a shift operation in the vehicle left-right direction to select a shift position.

[0002]

2. Description of the Related Art Recently, automatic transmissions for vehicles have been made into a multi-speed shift specification, and there is a tendency that a large number of shift ranges are set. Therefore, there is a demand for a shift lever device capable of selecting a plurality of set shift ranges.

A shift lever device for shifting an automatic transmission of a vehicle generally has a structure for shifting the automatic transmission by shifting the shift lever in the longitudinal direction of the vehicle. In such a conventional shift lever device, there is a limit in arrangement space (shift lever operation movement range) and operability when applied to an automatic transmission in which a large number of shift ranges are set. Therefore, a so-called gate (zigzag operation) type shift lever device has been proposed which is configured to shift the shift lever not only in the vehicle front-rear direction but also in the vehicle left-right direction to select a shift position.

In this type of gate type shift lever device, even when applied to an automatic transmission in which a plurality of shift ranges are set, the plurality of shifts are carried out in a compact space (shift lever operation movement range). The range can be selected and operated, and an increase in the set shift range can be dealt with.

By the way, in the gate type shift lever device as described above, the operation direction of the shift lever is simply set to the vehicle front-rear direction and the left-right direction (so-called zigzag). For example, the shift lever has an N shift range. The shift operation to the R shift range can be performed by the two operations of moving the shift lever in the left-right direction of the vehicle and then moving it in the front direction of the vehicle when the switch is selected. However, in such a shift lever device, the above-mentioned movement may be performed only by applying a load diagonally forward to the shift lever, and the R shift range may be entered by one operation. Therefore, a shift lock mechanism that enables the shift operation only under a specific condition is required, and the shift operation from the N shift range to the R shift range as described above needs to be limited by some method.

In this case, as a shift lock device which allows the shift lever to operate only under a specific condition such as when the brake is operated, a solenoid plate for arranging a stopper plate corresponding to the shift lever and for moving the stopper plate is provided. There is known a structure provided with.

In this main shift lock device, when the shift lever is selected in the P shift range, the stopper plate is brought into a state in which the stopper plate can be engaged with the shift lever located in the P shift range. A shift to a shift range other than the P shift range is blocked, and a shift lock state is set. On the other hand, in this case, when the brake is operated, the solenoid operates and the stopper P
The shift lever located in the shift range is moved to the released position. As a result, the shift lever can be moved to a shift range other than the P shift range, and the shift lock is released.

When the shift lever is selected from the N shift range to the L shift range, the solenoid operates at a predetermined vehicle speed set according to the N shift range to the L shift range, and the stopper operates. It is moved to a position where it can be engaged with the shift lever located in the N shift range. As a result, the shift lever is prevented from moving to the R shift range, and the shift lock state is established.

[0009]

By the way, such a conventional shift lock device of a shift lever device for a transmission is composed of a large number of parts, and the parts are laid out at different positions on the vehicle body side and rotated. It is configured to be connected via a support shaft or the like. For this reason, the assembly and accuracy control are not easy, and the applicability to different vehicle types is low, which is a cause of high cost.

In consideration of the above facts, the present invention facilitates the assemblability and the accuracy control, expands the range of application to different vehicle types, and can reduce the cost, and the shift lock of the transmission shift lever device. The purpose is to obtain a device.

[0011]

A shift lock device of a shift lever device for a transmission according to the present invention is a shift lever connected to a transmission having a P shift range, an R shift range, and an N shift range. Is used in a shift lever device that shifts the transmission by selecting one of the shift ranges by moving the shift lever in the front-rear direction and the left-right direction, and restrains the shift operation of the shift lever at a specific shift position. A shift lock device that is rotatably supported in a direction in which the shift lever moves toward and away from each other along a forward and backward movement direction of the shift lever, and is engageable with the shift lever selected in a P shift range and an N shift range. In the engaged state, a pair of stopper links that prevent the shift lever from moving in the left-right direction are connected to the stopper links. It is always the stopper link P
A solenoid for energizing the shift lever movement prevention state selected to the shift range and the N shift range and electrically actuating the stopper link to move the shift lever movement prevention state to the shift lever movement prevention state, and a P shift range. And a P position detection switch for detecting the shift position of the shift lever that has reached the position, and the stopper link, the solenoid, and the P position detection switch are attached to a bracket arranged laterally of the shift lever. It is characterized by a single unit.

[0012]

In the shift lock device of the shift lever device for a transmission having the above-described structure, the stopper link, the solenoid, and the P position detection switch, which form the lock mechanism, are
Since it is assembled to the bracket as a single unit, the assemblability is improved and the accuracy control is facilitated. Also,
Even for different vehicle types, parts can be standardized, standardized, or assembly can be automated, and the range of application is expanded.

[0013]

1 is a perspective view showing a shift lock device 30 according to a first embodiment of the present invention and a main part of a shift lever device 10 to which the shift lock device 30 is applied. 2 is a plan view of the shift lock device 30, and FIG. 3 is a front view of the shift lock device 30. In each drawing, the arrow A direction is the vehicle front-rear direction and the arrow B direction is the vehicle left-right direction.

In the shift lever device 10 to which the shift lock device 30 is applied, the shift lever 12 has the block 14
Is integrally projected upward from the upper end of the. The lower end of the block 14 is rotatably supported by a shaft (not shown) in the vehicle front-rear direction and the vehicle left-right direction.
It is connected to an automatic transmission (not shown) via a rod or the like.

An arm 16 is integrally extended to a side portion of the block 14, and a lock pin 18 is provided at a tip of the arm 16. The lock pin 18 has a guide hole 22 formed in the guide plate 20 (see FIG. 4).
It is inside. The shift lever 12 may be directly inserted into the guide hole 22 of the guide plate 20.

As shown in detail in FIG. 4, the guide hole 22 is a shift position of the shift lever 12, that is, "P",
The peripheral wall is continuously bent in an uneven shape in association with each shift range such as “R” and “N”.
8 (in other words, the shift lever 12) is the guide hole 2
2 can be operated to move forward and backward and left and right (so-called zigzag). Further, the respective “P”, “R”, and “N” shift ranges will be described in detail. When the shift lever 12 is located in the “N” shift range, the lock pin 18 is located at the position or position of the guide hole 22. Yes, the lock pin 18 is in the position or position of the guide hole 22 when the shift lever 12 is in the “R” shift range, and when the shift lever 12 is in the “P” shift range. 18 is a guide hole 22
, Or the lock pin 18 is configured to move continuously in these positions.

A detent pin 24 and a spring 26 are housed in the arm 16, and the detent pin 24 projects upward while being urged upward. Moderation pin 24
Enter into the moderation groove formed on the back surface side of the moderation plate 28. This moderation plate 28 (moderation groove) is at the shift position of the shift lever 12, that is, “P”,
Associated with each shift range such as "R", "N", etc., it is bent continuously in an uneven shape.
As 6 moves over, shift lever 12 is moved with moderation.

A shift lock device 30 is arranged in the vicinity of the block 14 of the shift lever 12 having the above structure.

The shift lock device 30 includes a bracket 32.
Is equipped with. The bracket 32 is formed in a plate shape, and is arranged near the shift lever 12 (block 14). A pair of stopper links 34 and stopper links 36 are supported on the bracket 32.

Each stopper link 34, stopper link 3
The lower end of 6 is rotatably supported by the bracket 32 by the support shafts 37 and 38. Further, the teeth 4 are provided on the supporting portions of the respective stopper links 34 and 36.
0 and teeth 42 are formed and mesh with each other.
Therefore, when one of the stopper links 34 rotates about the support shaft 37, the other stopper link 36 rotates in the direction of moving toward and away from the stopper link 34 in conjunction with this.

The upper end portion of the stopper link 34 has a P locking portion 3
4A, and is positioned in the immediate vicinity of the lock pin 18 when the shift lever 12 is selectively moved to the "P" shift range as shown in FIG. 4 (that is, when the lock pin 18 is in the position of the guide hole 22). Then, the lock pin 18 is engaged with the lock pin 18 to prevent the lock pin 18 from moving in the left-right direction (arrow B direction). On the other hand, the upper end portion of the stopper link 36 is an N locking portion 36A, and similarly, when the shift lever 12 is selectively moved to the "N" shift range (that is, the lock pin 18 is located at the position of the guide hole 22). Lock pin 1 located closest to lock pin 18 (if present)
It is designed to prevent the lock pin 18 from moving in the left-right direction (arrow B direction).

Here, the P locking portion 3 of the stopper link 34
4A and the N locking portion 36A of the stopper link 36 are interlocked with each other to be in each of the above states. That is, the stopper link 3
4 and the stopper link 36, the lower end portions thereof are connected by the teeth 40 and the teeth 42, so that the P locking portion 34A
And the N locking portion 36A move toward and away from each other. For example, in the state in which the P locking portion 34A is located in the immediate vicinity of the lock pin 18 when the P locking portion 34A is selectively moved to the “P” shift range, the N locking portion 3
6A is located in the immediate vicinity of the lock pin 18 when it is selectively moved to the "N" shift range, and the P locking portion 34A is forward of the lock pin 18 when it is selectively moved to the "P" shift range (see FIG. 4). In the state of being spaced apart (upward from the paper surface), the N locking portion 36A is configured to be spaced rearward from the lock pin 18 of the shift lever 12 in the “N” shift range.

A plunger 46 of a solenoid 44 is connected to the connecting link 43 at the longitudinal middle portion of one stopper link 34.
Are connected via. The solenoid 44 is fixed to the bracket 32 and attracts the plunger 46 when energized. When the solenoid is not energized, the plunger 46 is pulled out by the urging force of the return spring installed inside. When the solenoid 44 is excited,
The stopper link 34 is rotated by pulling the plunger 46 against the urging force of the return spring. When the solenoid 44 is not energized, the P-locking portion 34A of the stopper link 34 is in the state of being positioned in the immediate vicinity of the lock pin 18 when the P-shift portion is selectively moved to the "P" shift range, and the N-link of the stopper link 36 is engaged. Stop 3
The dimensions of the respective parts are set so that when 6A is selectively moved to the "N" shift range, it is in a state of being positioned in the immediate vicinity of the lock pin 18.

Therefore, when the solenoid 44 is not energized, the P locking portion 34A or the N locking portion 36A engages with the lock pin 18 and the lock pin 18, that is, the shift lever 12 is moved in the left-right direction (arrow B direction). On the other hand, when the solenoid 44 is energized and the stopper link 34 and the stopper link 36 are rotated, the P locking portion 34 is blocked.
The A or N locking portion 36A is separated from the lock pin 18 so that the lock pin 18 (shift lever 12) can be moved in the left-right direction (arrow B direction).

The solenoid 44 is adapted to be electrically energized and deenergized by electrical control according to the running state of the vehicle. Specifically, the shift lever 12
When is selected to the "P" shift range, it is operated by the brake operation, and when the shift lever 12 comes out of the "P" shift range, it is stopped (de-energized), and the shift lever 12 is switched to the "N" shift range. When selected, it is activated when the vehicle speed falls below a set predetermined vehicle speed.

A P position detection switch 48 and an operation link 50 are arranged on the bracket 32 on the side of the solenoid 44. The operating link 50 is attached to the bracket 32 by the support shaft 5.
It is rotatably supported by 2, and one end is located near the lock pin 18 when the lock pin 18 is in the position of the guide hole 22, and the other end is opposed to the pressing portion 54 of the P position detection switch 48. . A return spring 56 is wound around the support shaft 52 to keep the operating link 50
The other end of the P position detection switch 48 is urged in a direction away from the pressing portion 54. As a result, the shift lever 1
When 2 is in the “P” shift range (that is, when the lock pin 18 is in the position of the guide hole 22), the lock pin 18 presses one end of the operation link 50 to apply the urging force of the return spring 56. The P-position detection switch 48 is actuated by rotating the support shaft 52 around the support shaft 52 and pressing the pressing portion 54 at the other end.

Further, the shift lock device 30 is provided with a forced release mechanism. That is, the L-shaped release arm 58 integrally extends from the base end portion of the connection link 43 to which the plunger 46 of the solenoid 44 is connected. An inclined surface 60 is formed at the tip of the release arm 58. Therefore, when the inclined surface 60 is pressed by a release button (not shown) or the like, the inclined surface 60 is pressed and the connecting link 43 (plunger 46) is moved to the solenoid 4.
The return spring 4 is forcibly moved against the biasing force of the return spring.

As described above, the stopper link 34 and the stopper link 36, the solenoid 44, the P position detecting switch 48, etc. are assembled to the bracket 32, and the shift lock device 30 is a single unit together with the bracket 32. ing.

Next, the operation of this embodiment will be described. In the shift lock device 30 (shift lever device 10) configured as described above, when the shift lever 12 is operated back and forth and left and right within the guide hole 22, the moderation pin 24 is guided by the concavity and convexity of the moderation groove of the moderation plate 28, and the shift lever is moved. It moves to a specific shift position according to the operation of 12 with a feeling of moderation.

Further, in a specific shift range or a traveling state of the vehicle, the solenoid 44 of the shift lock device 30 is operated to restrict the movement of the shift lever 12.

For example, when the shift lever 12 is selected in the "P" shift range, the lock pin 18 is located at the position of the guide hole 22, and the lock pin 18 pushes one end of the operation link 50 to support it. It is rotated around the shaft 52, and the other end presses the pressing portion 54 of the P position detection switch 48 to P
The position detection switch 48 is activated. As a result, it is detected that the shift lever 12 is selected in the "P" shift range, and the solenoid 44 is de-energized.

When the solenoid 44 is not energized, the plunger 46 is pulled out. As a result, as shown by the solid line in FIG. 4, the P locking portion 34A of the stopper link 34 is
Is in a state in which it is positioned in the immediate vicinity of the lock pin 18 when it is selectively moved to the “P” shift range, and the P locking portion 3
4A engages with the lock pin 18 to prevent the lock pin 18 from moving in the left-right direction (arrow B direction). Therefore, the lock pin 18 at the position of the guide hole 22 cannot move to the position of the guide hole 22, and therefore the shift lever 12 moves to a shift range other than the “P” shift range (“R”). The movement becomes a shift lock state (movement in the shift range direction) (so-called P range shift lock).

On the other hand, when the ignition switch of the vehicle is turned on and the brake is depressed after the shift lever 12 is selected in the "P" shift range and the shift lock state is set, the solenoid 44 is energized. As a result, the plunger 4 is resisted against the biasing force of the return spring.
6 is pulled in and the stopper link 34 is rotated,
As indicated by the chain double-dashed line, the P locking portion 34A is separated from the lock pin 18, and the lock pin 18 can be moved in the left-right direction (direction of arrow B) (movement from the position of the guide hole 22 to the position). , The shift lock is released so that the shift lever 12 can move in the “R” shift range direction, and the shift lever 12 can perform a shift operation.

When the shift lever 12 comes out of the "P" shift range, the lock pin 18 is separated from one end of the operation link 50, and the operation link 50 is returned by the return spring 56.
The urging force returns to the original position and the P position detection switch 48 is released. As a result, the shift lever 1
An exit from the "P" shift range of 2 is detected.

When the shift lever 12 is selected to the "N" shift range while the vehicle is running and the predetermined vehicle speed set according to the "N" shift range is reached, the energization of the solenoid 44 is stopped. It Therefore, the plunger 46 is pulled out and the stopper link 34 is rotated.
When the stopper link 34 is rotated, since the teeth 40 and the teeth 42 are meshed with each other, the other stopper link 36 is rotated in conjunction therewith, and as shown by the solid line in FIG. The stop portion 36A is in a state of being positioned in the immediate vicinity of the lock pin 18 when the stop portion 36A is selectively moved to the "N" shift range. Therefore, the N locking portion 36A is locked by the lock pin 18
The lock pin 18 is prevented from moving in the left-right direction (arrow B direction). As a result, the lock pin 18 at the position of the guide hole 22 cannot move to the position of the guide hole 22, and therefore the shift lever 12 is prevented from moving from the “N” shift range to the “R” shift range. The shift lock state is set (so-called R inhibit).

Further, when the vehicle speed falls below a predetermined traveling speed, the solenoid 44 is energized again. As a result, the plunger 46 is pulled in against the urging force of the return spring, the stopper link 34 is rotated, and the stopper link 36 is rotated accordingly, and as shown by the two-dot chain line in FIG. The locking portion 36A is separated from the lock pin 18, and the lock pin 18 can be moved in the left-right direction (direction of arrow B) (movement from position of the guide hole 22 to position). Therefore, the shift lever 12 can be moved from the "N" shift range to the "R" shift range,
The shift lock (R inhibit state) is released.

As described above, in the shift lock device 30,
A solenoid 44 that operates a shift lock at each of the "P" and "N" shift positions of the shift lever 12 according to a brake operation or a set vehicle speed, a pair of stopper links 34 that are moved by the solenoid 44, and Since the structure is simple with the stopper link 36, the mechanism is simple and a small space is required.
Significant cost reduction can be achieved. In addition, the solenoid 44 operates in accordance with the vehicle speed set at each shift position to shift-lock, so that the solenoid 44 is locked.
The operation timing of can be easily set, the shift lock state can be reliably achieved, and the range of application is greatly expanded. Furthermore, the shift lever 12 that is operated to the front, rear, left, and right can be used for other special operations (for example, the shift lever 12
The shift lever 12 can be moved to a desired shift range without being accompanied by a pushing operation, and the operability of the shift lever 12 is not impaired.

Further, in the shift lock device 30, the solenoid 44 is not energized and excited when the engine is not operating or when the connection with the power source is cut off during vehicle maintenance work or the like. The plunger 46 is pulled out by the urging force, and the P locking portion 34A of the stopper link 34 and the stopper link 3
The N locking portions 36A of 6 are the lock pins 1 when they are selectively moved to the “P” shift range or the “N” shift range, respectively.
8 is held at a position where it can be engaged with the shift lever 12, and the shift lever 12 enters a shift lock state in which shift operation cannot be performed. In such a case or in a situation where the solenoid 44 does not operate even when the solenoid 44 is energized (so-called off-failure), the shift lock release state is forced by operating the forced release mechanism. Can be That is, when the inclined surface 60 of the release arm 58 of the connection link 43 is pressed by a release button or the like, the connection link 43 (plunger 4
6) is forcibly moved against the biasing force of the return spring of the solenoid 44. As a result, the shift lever 12 can be moved from the "P" shift range or the "N" shift range to the "R" shift range.

Further, in the shift lock device 30, the pair of stopper links 34 and 36 for locking the shift lever 12 (lock pin 18) are arranged so that the shift lever 12 (lock pin 18) moves in the left-right direction of the vehicle. That is, since the solenoid 44 is prevented from moving in a direction orthogonal to the operating direction, even if the shift pin 12 is forcibly operated to move the lock pin 18 in the shift lock state, this operating force is applied to the solenoid 44. The solenoid 44 has no effect and the durability of the solenoid 44 is significantly improved. In this case, the bracket 3 is moved along the moving direction of the stopper link 34 and the stopper link 36.
Since the two side walls are provided, when the shift lever 12 is forcibly operated as described above, the stopper link 34
And the force acting on the stopper link 36 is received,
The durability of the lock mechanism as a whole is improved, which is more effective.

Further, in the shift lock device 30, the stopper link 34, the stopper link 36, the solenoid 44, and the P position detection switch 48, which constitute the lock mechanism, are integrally assembled to the bracket 32. Since it is a single unit, the assembling property when the shift lock device 30 is applied to the shift lever 12 is improved, and the accuracy control becomes easy. Further, even in different vehicle types, it is possible to standardize parts, standardize them, or automate assembly, and expand the range of application. Further, the cover of the solenoid 44 and the wiring code of the P position detection switch 48 are unnecessary (can be abolished), and the wiring process is also unnecessary. Therefore, the cost can be reduced.

[0041]

As described above, the shift lock device of the shift lever device for a transmission according to the present invention facilitates the assembling property and the accuracy control, expands the range of application to different vehicle types, and reduces the cost. It has an excellent effect that it can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a main part of a shift lock device according to an embodiment of the present invention and a shift lever device to which the shift lock device is applied.

FIG. 2 is a plan view of the shift lock device according to the embodiment of the present invention.

FIG. 3 is a front view of the shift lock device according to the embodiment of the present invention.

FIG. 4 is a plan view showing a correspondence relationship between a guide hole of a guide plate, a lock pin, and a pair of stopper links in the shift lock device according to the embodiment of the present invention.

[Explanation of symbols]

 10 shift lever device 12 shift lever 18 lock pin 22 guide hole 30 shift lock device 32 bracket 34 stopper link 36 stopper link 44 solenoid 48 P position detection switch

Claims (1)

[Claims] 1. A shift lever connected to a transmission having a P shift range, an R shift range, and an N shift range is moved in the front-rear direction and the left-right direction to select one of the shift ranges. A shift lock device that is used in a shift lever device that shifts the transmission by selecting the shift lock device that restricts the shift operation of the shift lever at a specific shift position. Rotatably supported in the direction of
A pair of stopper links that can be engaged with the shift lever selected for the shift range and that prevent the shift lever from moving in the left-right direction in the engaged state; A solenoid for energizing the shift lever movement preventing state selected to the P shift range and the N shift range and for electrically actuating to move the stopper link to bring the shift lever movement inhibiting state to a release state; A P position detection switch for detecting the shift position of the shift lever that has reached the range, and the stopper link, the solenoid, and the P position detection switch are attached to a bracket arranged laterally of the shift lever. Shift lever device for transmissions characterized by a single unit Click device.