JPH0742851Y2 - Selector lever locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a selector lever locking device in an automatic transmission, in which the selector lever is reliably locked during parking.

<Prior Art> In an automatic transmission of a vehicle, parking (P), backward (R), neutral (N), drive (D), It can be switched to each low speed (I, II) range.

Since the conventional selector lever can be moved even when the vehicle is parked, if the selector lever is parked and stopped on a slope, if it is accidentally operated to another position, the vehicle will start moving. There was a danger.

In order to avoid such a problem, a device for locking the selector lever when the vehicle is parked has been considered (for example, Japanese Patent Laid-Open No. 60-135352). The schematic configuration of that example is
Shown in the figure.

In FIG. 3, 1 is a selector lever, the lower part of which is pivotally attached to a bracket 32 integrated with an indicator panel 31,
It is rotatable in the front-rear direction of the vehicle. Bracket 32
A detent plate 2 having a recess for stopping corresponding to each range position is provided therein. On the other hand, a rod 6 that can be lowered against the spring force of the spring 5 by pushing the button 4 of the knob 3 is inserted into the selector lever 1, and the rod 6 engages with the recess of the detent plate 2. A detent roller 7 that can be fitted is provided. The selector lever 1 is connected to the transmission side via a control cable.

On the other hand, a pin 8 is provided on the parking position side of the detent plate 2 or the bracket side integrated therewith.
An interlock lever 10 is supported via an elongated hole 9 so as to be vertically movable and swingable. A recess 11 which can be fitted into the detent roller 7 is provided on the upper portion of the interlock lever 10. Further, one end of an L-shaped lever 12 whose central portion is pivotally supported by a pin 18 is connected to the lower portion on the bracket side.

One end of an operation cable 13 is connected to the other end of the L-shaped lever 12, and the other end of the operation cable 13 is connected to a mover 15 slidably provided on the side of a key cylinder 14 provided on the steering column. It is connected. The key cylinder 14 is provided with a locking projection 16 (shown by hatching in the figure), and in the locked state, as shown in FIG.
To prevent the cable 13 from being pulled. Reference numeral 17 is a spring that biases the mover 15. When the key cylinder 14 is locked, the steering is also locked.

The state shown in FIG. 3 is a state in which the selector lever 1 is in the parking position and is locked. The detent roller 7 is fitted in the parking recess 2p of the detent plate 2 and the recess 11 of the interlock lever 10 is attached to the detent roller 7.
And the key cylinder 14 rotates on the key side, and as shown in FIG.
The movement of 13 in the pulling direction is suppressed.

In this state, the detent roller 7 cannot move down even if the button 4 of the selector lever 1 is pressed, and the range cannot be switched to another range. That is, even if a force is applied to the detent roller 7 to lower it, the L-shaped lever 12 cannot rotate in the counterclockwise direction in the figure because the mover 15 is constrained on the key side, and the interlock occurs. The lever 10 cannot be lowered, and the detent roller 7 cannot be removed from the parking recess 2p.

When the key 19 is put in the key cylinder 14 and the key cylinder 14 is brought to the unlocked position as shown in FIG. 4, the constraint of the mover 15 is released, and the movable element 15 is free to move in the axial direction. Therefore, if you press the button 4 on the selector lever 1, the L-shaped lever
Since the rotation of 12 is not restricted, the detent roller 7
At the same time, the interlock lever 10 descends, the detent roller 7 comes out of the parking recess 2p, and the selector lever 1 becomes switchable.

When the button 4 of the selector lever 1 is pushed to move to the parking range and the button 4 is released, the interlock lever 10 moves upward, and the L-shaped lever 12 moves clockwise in FIG. 3 accordingly. The mover 15 is rotated and moved to the engagement position by the spring 17, and then the key cylinder 14 is rotated to the off position by the key 19 so that the locking projection 16 comes to the engagement position with the mover 15. , The movement of the mover 15 is blocked.

<Problems to be Solved by the Invention> By the way, the selector lever locking device having the above configuration has the following problems because the interlock lever 10 is locked and unlocked at the upper and lower positions.

The interlock lever may move up and down due to vibration of the vehicle during traveling, which may cause abnormal noise and malfunction.

Due to the play of the operation cable 13 or the friction with the cable guide, the locked and unlocked positions of the interlock lever are difficult to come out.

If the interlock lever is lifted up for some reason while the vehicle is running and is held in that state, it becomes impossible to switch the selector lever to the parking position when stopped.

<Means for Solving the Problems> According to the present invention for solving the above problems, a selector lever of an automatic transmission that selectively engages a detent roller with a recess for each range of a detent plate is locked in a parking range. An interlock lever provided at one end thereof to engage with the parking range concave portion of the detent plate and capable of moving up and down in conjunction with vertical movement of the detent roller; One end is directly or indirectly connected to the other end of the interlock lever, and the other end is removably connected to a lock mechanism provided in the ignition key device, and is rotatable to a fixed part. Is pivotally supported by the detent roller and is rotated to one side by moving from the other range of the detent roller to the parking range and is elastic. A lock lever urged to rotate to the other side by a member, and the interlock lever, which is formed on the interlock lever and engages with the lock lever by the rotation of the lock lever to the other side so as to be located above the interlock lever. And a stopper portion which is disengaged from the lock lever when the lock lever is turned to the one side.

<Operation> In the selector lever lock device configured as described above, when the detent roller is fitted in the recess for the parking range of the detent plate, the interlock lever is engaged with the detent roller and the operation connecting member is the key. Since the lock is restrained by the lock, the detent roller will not come off from the parking recess even if it is pushed down. When released by unlocking the key of the operation connecting member,
When the depressing force is applied, the detent roller comes out of the parking range recess and can be moved to another position. When the detent roller is moved to another position by the rotation of the selector lever, the lock lever rotates, and the interlock lever is held in the lowered position by the engagement with the lock lever. The roller is held in a state in which it is allowed to enter.

<Embodiment> FIG. 1 shows a schematic side surface of a selector lever lock device according to the present invention, and FIG. 2 shows a part thereof in different states.

An interlock lever is inserted into a pin 8 provided on the side of the parking range recess 2p of the detent plate 2 through an elongated hole 9.
10 are supported and can move up and down. This interlock lever 10 is provided with a concave portion 11 which can be fitted into the detent roller 7 in the upper portion and is connected to one end of an L-shaped lever 12 in the lower portion, like the conventional one shown in FIG. ing. Further, on the side surface of the interlock lever 10, a stopper portion 21a for locking and a stopper portion 21b for unlocking are provided.
And are formed in steps.

On the other hand, a lock lever 22 is pivotally supported on the pin 8 and a spring force in the counterclockwise direction in the figure is biased by a coil spring 23. A notch recess 24 that can be engaged with the detent roller 7 is formed in the upper portion of the lock lever 22.

In the parked state, as shown in FIG. 5, the movement of the mover 15 is restrained by the locking projection 16 which constitutes the lock mechanism in the key cylinder 14 of the ignition key device. As shown in FIG. 1, the interlock lever 10 is fitted to the detent roller 7 fitted to the parking range recess 2p. At this time, the lock lever 22 is the interlock lever.
The notch recess 24 on the tip end side is engaged with the locking stopper portion 21a of 10 and is located on the side where the detent roller 7 is pulled out.

In this state, even if the button 4 of the selector lever 1 is pressed, the interlock lever 10 is restrained because the L-shaped lever 12 is pulled by the operation cable 13 which is the operation connecting member. The lock lever 10 cannot move down, and the detent roller 7 will not come out of the parking range recess 2p.

When the key 19 is inserted into the key cylinder 14 and the key cylinder 14 is moved to a position other than the lock position, the constraint of the mover 15 is released and the interlock lever 10 is allowed to descend as shown in FIG.

When the button 4 of the selector lever 1 is pushed, the detent roller 7 is pushed down to come off the recess 2p for the parking range, and the lock lever 22 located below the recess 2p for the parking range.
Into the notch recess 24. By rotating the selector lever 1, the detent roller 7 moves to another range position. At this time, the lock lever 22 is pushed by the detent roller 7 and rotates as shown in FIG. Engages with the stopper portion 21b for unlocking. Due to this engagement, the interlock lever 10 is held in the lowered position. That is, the interlock lever 10 does not move up due to the vibration of the vehicle or the like, and is locked in the lowered position that can correspond to the next shift of the selector lever 1 to the parking position.

When the selector lever 1 is moved to the parking position, the detent roller 7 first enters the cutout recess 24 of the lock lever 22 and rotates the lock lever 22 so that it stands upright. After that, when the button 4 of the selector lever 1 is released, the detent roller 7 is fitted into the parking range recess 2p by the upward spring force acting on the detent roller 7, and the state shown in FIG. 1 is obtained. .

<Advantages of the Invention> According to the selector lever locking device of the present invention, the interlock lever is securely held in the locked position and the unlocked position, so that the interlock lever is unexpectedly damaged due to vibration during traveling of the vehicle. The problem that the shift to the parking position cannot be performed does not occur when the vehicle comes to the position of. Further, since the interlock lever is securely held, generation of abnormal noise due to backlash is prevented.

[Brief description of drawings]

FIG. 1 is a schematic side view of a selector lever locking device according to an embodiment of the present invention, FIG. 2 is a side view of a part thereof in different states, FIG. 3 is a schematic view of a conventional one, and FIG. , FIG. 5 is a schematic view of different states on the key side. In the drawings, 1 is a selector lever, 2 is a detent plate, 2p is a recess for a parking range, 7 is a detent roller, 8 is a pin, 9
Is an elongated hole, 10 is an interlock lever, 12 is an L-shaped lever,
13 is an operation cable, 14 is a key cylinder, 15 is a mover, 21
Reference numeral a is a stopper portion for locking, 21b is a stopper portion for unlocking, 22 is a lock lever, 23 is a coil spring, and 24 is a notched recess.

Claims (1)

[Scope of utility model registration request] 1. A device for locking a selector lever of an automatic transmission, which selectively engages a detent roller with a recess for each range of a detent plate, in a parking range. One end is directly or indirectly connected to an interlock lever provided at one end of the interlock lever that engages with the corresponding detent roller and is vertically movable in association with the vertical movement of the detent roller. The other end of the detent roller is rotatably pivotally supported by the operation connecting member, the other end of which is releasably connected to the lock mechanism provided in the ignition key device, and the detent roller from the other range. A lock lever that is rotated to one side by moving to the range and is biased to be rotated to the other by an elastic member. Formed on the interlock lever, the rotation of the lock lever to the other side engages with the lock lever to prevent the interlock lever from moving upward, and the lock lever is turned to the one side. A selector lever locking device for releasing the engagement with the lock lever when the selector lever is locked.