JPH0744846Y2 - Shift lock device for vehicle - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is applied to, for example, a vehicle equipped with an automatic transmission and the like to prevent a driver from operating the select lever by mistake. Regarding locking device.

(Prior Art) Generally, an automobile or the like having an automatic transmission is provided with a shift lock device 1 as shown in FIGS. 4 and 5, for example, in order to prevent an erroneous operation by a driver. That is, the shift lock device 1 is provided with the brake pedal 2
A shift lock cable 3 having one end connected to
The key lock cam 5 pivotally supported by the detent plate 4 is provided.

The shift lock cable 3 has a cylindrical guide 7 fixed to the outer cable 6 and the vehicle body at an end portion guided to the detent plate 4 side, and P (inserted into and removed from the guide 7 so as to be freely inserted and removed). Parking) lock pin 8. In the shift lock cable 3, the cable end 10 of the inner cable 9 is locked to the P lock pin 8, and the compression coil type return spring 11 is housed in the guide 7.

The shift lock cable 3 is used for the brake pedal 2
When the brake pedal is stepped and rotationally displaced, the inner cable 9 is pulled by the brake pedal 2 and the return spring
The P lock pin 8 is adapted to be retracted into the guide 7 while compressing 11. Further, when the brake pedal 2 is released from the pedaling force and returns to the original state, the elastic restoring force of the re-turn spring 11 causes the P lock pin 10 to move.
And is discharged from the guide 7.

Further, the key lock cam 5 has a detent pin notch 14 for locking the detent pin 13 projecting from the lever 12 when the select lever (hereinafter referred to as the lever) 12 is positioned at the parking position. Have Further, the key lock cam 5 has a P-lock pin projection 15 protruding toward the side where the guide 7 of the shift lock cable 3 is located.
have.

The key lock cam 5 is a notch for the detent pin.
When pressed by the detent pin 13 which is locked to 14 and slides downward along the axial direction of the select lever 12, the P lock pin 10 protruding from the guide 7 locks the P lock pin convex portion 15, Rotational displacement is prevented.

Further, the key lock cam 5 is connected to a key lock device 17 via a key lock cable 16. The key lock cam 5 is provided with a P lock pin 10 when the ignition key 18 is not inserted into the key lock device 17 by the key lock device 17 and the key lock cable 16.
The rotational displacement can be prevented regardless of the state of the protrusion and the depression.

In other words, the shift lock device 1 described above has the select lever when the ignition key 18 is not inserted or the brake pedal 2 is not operated.
Even if the push button 12 is pressed, the detent pin 13 cannot be separated from the pattern a of the detent plate 4. And the ignition key 18
The shift lock cannot be released until the brake pedal 2 is inserted and the brake pedal 2 is operated to prevent an erroneous operation by the driver and prevent a sudden start of the vehicle.

(Problems to be Solved by the Invention) In the conventional shift lock device 1 as described above, it is difficult to position the P lock pin 10 with respect to the key lock cam 5 or the like, and the shift lock device 1 can be mounted on a vehicle with high accuracy. It was difficult to install. That is, conventionally, when the shift lock device 1 is mounted, a positioning mark for the P lock pin 10 is provided on the key lock cam 5, or the mounting position of the P lock pin 10 is visually judged by a mounting operator. Therefore, the mounting position of the shift lock device 1 is likely to be inaccurate, and the work is troublesome.

Moreover, since the key lock cam 5 is regulated by the P lock pin 10, when the P lock pin 10 is under some load, for example, it may be caught and the operability may deteriorate.

An object of the present invention is to provide a vehicle shift lock device that can be installed in a vehicle with high accuracy and that does not impair the operability of the select lever.

[Constitution of device]

(Means and Actions for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a select lever for an automatic transmission that is provided with a detent pin and is selectively operated at each position including a parking position, and a detent pin. A first cam capable of locking the selector lever to fix the select lever to the parking position and preventing the selection operation of the selector lever; and a cam attachment member pivotally supporting the first cam,
A second cam pivotally supported by the cam attachment member, having a shift lock cable pin, connected to the brake pedal via the shift lock cable and communicating with the brake pedal, and a second cam side of the shift lock cable. A cable end that is provided at the end of the shift lock cable, has a long hole into which the shift lock cable pin is inserted, and can move the shift lock cable pin along the long hole;
The second cam projects from the second cam and is locked to the first cam to prevent the rotational displacement of the first cam when the brake pedal is not operated, and to prevent the second displacement when the brake pedal is operated. The first cam pin that is rotationally displaced together with the first cam, moves while coming into contact with the cam surface of the first cam, and disengages from the first cam, and the first cam pin is connected to the first cam pin of the first cam. And a biasing member for biasing the second cam so as to contact the cam surface.

By doing so, the present invention provides a P with an advance / retreat mechanism.
The second cam replaces the (parking) lock pin, so that the shift lock device can be installed in the vehicle with high accuracy and the operability of the select lever can be prevented from being impaired.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. The same parts as those described in the section of the prior art are designated by the same reference numerals, and the description thereof will be omitted.

1 to 3 show an embodiment of the present invention, in which, for example, 21 is a shift lock device provided in an automobile equipped with an automatic transmission, and 12 is a select projectingly provided on a floor portion in a vehicle compartment. A lever (hereinafter referred to as a lever) is shown.

The lower end of the lever 12 is pivotally supported on the vehicle body side. Then, the lever 12 has a detent pin at a part in the axial direction.
The detent pin 13 is provided with a detent pin 13 projecting from a long hole 22 for the detent pin opened on the side surface of the lever 12. Then, the lever 12 slides the detent pin 13 in the vertical direction along the elongated hole 22 in accordance with the push-in operation of the push button provided on the upper end (not shown).

Further, the lever 12 allows the detent pin 13 to pass through the pattern hole 23 of the detent plate 4 serving as a cam attachment member fixed to the vehicle body side, and is rotationally displaced to move the detent pin 13 to the edge portion of the pattern hole 23. It is adapted to be selectively locked to each part of the pattern formed on the. Then, the lever 12 is positioned at each part of the above pattern, and is set to each range (P (parking), R (reverse), N (neutral), D (drive), 2) of the automatic transmission.
(Second), 1 (low), etc. are selected.

Here, FIG. 1 shows a state in which the lever 12 selects the P range.

In addition, reference numeral 24 in each drawing is a key lock cam as a first cam. The key lock cam 24 is pivotally supported on the plate surface of the detent plate 4 in the vicinity of the pattern hole 24. Further, the key lock cam 24 has a detent pin cutout portion 26 at a portion separated from the pivot portion 25.

Then, the key lock cam 24 inserts the detent pin 13 into the notch 26 for the detent pin, and the detent pin 13
Is locked to. When the detent pin 13 tries to slide downward, it is pushed by the detent pin 13 and pivotally displaced about the pivotal support portion 25 in the direction indicated by arrow A in FIG.

The key lock cam 24 is composed of an outer cable 16a and an inner cable 16b. One end of the key lock cable 16 having the outer cable 16a fixed to the detent plate 4 is attached to a side surface opposite to the side where the detent plate 4 is located. Is connected on. And the key lock cam 24
Has a cable end 16c of the inner cable 16b connected to a key lock cable pin 16d.

Then, the key lock cam 24 is fixed while being locked to the detent pin 13 when the ignition key is not inserted in the key lock device (not shown), and the detent pin 13 slides out of the pattern of the detent plate 4. It is designed to prevent

Further, 27 in each drawing is a P (parking) lock cam as the second cam. The P-lock cam 27 is pivotally supported on the plate surface of the detent plate 4 on the same side as the key-lock cam 24, and is arranged at a portion slightly below the key-lock cam 24. The P lock cam 27 is attached to the detent plate 4 with a return spring 29, which is a torsion coil type urging member disposed on the pivot 28 and having one end locked to the detent plate 4, interposed therebetween. .

In addition, the P lock cam 27 has a columnar lock pin 30 as a first cam pin protruding substantially vertically from a portion separated from the pivot 28. The P lock cam 27 engages the lock pin 30 with the locking projection 31 provided on the key lock cam 24 with the lower end of the key lock cam 24 interposed between the P lock cam 27 and the detent plate 4. It has stopped. And P
The lock cam 27 presses the lock pin 30 against the cam surface 32 on the upper side of the locking projection 31 with an appropriate force using the return spring 29, for example.

Here, the upper corner portion of the locking convex portion 31 is formed into a gently curved surface, as indicated by R in FIG.

Further, the P lock cam 27 has a columnar shift lock cable pin 33 at a position separated from the pivot portion 28.
The side surface on the side opposite to the side surface on which 30 is protruded is projected substantially perpendicularly. The P lock cam 27 has one end of a shift lock cable 34 (described later) connected to the shift lock cable pin 33.

The shift lock cable 34 includes an outer cable 35 fixed to the vehicle body side and the detent plate 4, and an inner cable 36 that is inserted into the outer cable 35 so as to be able to move back and forth and has both ends thereof led out from both ends of the outer cable 35.
It consists of and. And shift lock cable
34 has cable ends at both ends of the inner cable 36, and further positions both ends of the inner cable 36 on the brake pedal (not shown) side and the detent plate 4 side, respectively. And the inner cable
One end of 36 is connected to, for example, a brake pedal (not shown).

Further, the shift lock cable 34 has a long hole 38 in the cable end 37 at the guided end on the side of the detent plate 4. In the shift lock cable 34, the shift lock cable pin 33 is loosely inserted into the long hole 38, and the cable end 37 is attached to the shift lock cable pin.
Connected to 33. And the shift lock cable 34
Is configured to move the shift lock cable pin 33, which is rotationally displaced together with the P lock cam 27, along the elongated hole 38.

That is, when the pedal force is applied to the brake pedal, the shift lock device 21 described above pulls the inner cable 36 of the shift lock cable 34 by the brake pedal to rotate the P lock cam 27 in the direction indicated by the arrow B in FIG. Dynamically displace. Then, the lock pin 30 is moved while always being in contact with the cam surface 32 of the locking convex portion 31 of the key lock cam 24.
Then, the lock pin 30 is attached to the locking portion 24 of the key lock cam 24.
The key lock cam 24 is released by disengaging it from a.

If the ignition key is inserted in the key lock device, the shift lock device 21 releases the key lock cable 16 to allow the key lock cam 24 to freely rotate and displace, and the detent pin 13 slides. The detent plate 4 from the pattern, that is, the lever 12 can be selectively operated from the P position to another position.

In such a shift lock device 21, the key lock cam 24 is regulated by the P lock cam 27, and further, the lock pin 30 of the P lock pin 27 can be attached while being in contact with the cam surface of the key lock cam 24. ing. Further, the P lock cam 27 is attached to the one member, that is, the detent plate 4, together with the key lock cam 24.

Therefore, the shift lock device 21 can be easily and highly accurately installed in the vehicle without providing a mark or the like for mounting or visually observing the mounting position of each member. In addition, the lock pin 30 key lock cam
Since it is possible for the installation operator to visually check the locked state to 24, the connected state of the shift lock cable 34, and the like, it is less likely that an adjustment error or variation in adjustment will occur.

Further, since the long hole 38 is formed in the cable end 37 of the shift lock cable 34, the long hole 38 can absorb the displacement of the P lock cam 27 when the detent pin 13 slides, for example, and the shift lock cable 34 can be absorbed. It is possible to prevent unreasonable force such as pulling force from being applied to.

Further, in this embodiment, the locking projection 31 of the key lock cam 24 is
Since the upper corner of is shaped into a gently curved surface,
When the push button of the lever 12 is operated to release the shift lock, the P lock cam 27 can be smoothly rotationally displaced and the lock pin 30 can be disengaged from the displacement 24a, which may cause a feeling of being caught. Therefore, the operability can be improved.

The present invention is not limited to the type of vehicle in which the select lever 12 is provided on the floor portion of the vehicle body, and is applicable to, for example, a vehicle of the type in which the select lever 12 is provided in the steering column portion.

[Effect of device]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a select lever for an automatic transmission having a protruding detent pin and a detent pin are locked to fix the select lever at a parking position to prevent the select operation of the select lever. And a cam mounting member that pivotally supports the first cam, and a shift lock cable pin that is pivotally supported by the cam mounting member and that has a shift lock cable. A second cam that is connected and interlocks with the brake pedal is provided at an end of the shift lock cable on the second cam side, and has a long hole into which a shift lock cable pin is inserted. And the cable end that can move the pin for the shift lock cable and the second cam that projects and locks with the first cam, and the brake pedal is operated. When the brake pedal is operated, the first cam is prevented from being rotationally displaced, and when the brake pedal is operated, the second cam is integrally rotationally displaced so that the first cam moves while contacting the cam surface of the first cam. A first cam pin that is disengaged from the first cam, and a biasing member that biases the second cam so that the first cam pin contacts the cam surface of the first cam. is there.

Therefore, the present invention has an effect that the shift lock device can be installed in the vehicle with high accuracy and the operability of the select lever can be prevented from being impaired.

[Brief description of drawings]

1 to 3 show an essential part of an embodiment of the present invention. FIG. 1 is a side view, and FIG. 2 is an enlarged side view showing a key lock cam and a P lock pin. FIG. 3 is a front view, FIGS. 4 and 5 show a conventional example, FIG. 4 is a schematic configuration diagram, and FIG. 5 is a longitudinal side view showing an enlarged main part. 2 ... Brake pedal, 4 ... Detent plate (cam mounting member), 12 ... Select lever, 13 ... Detent pin, 24 ... Key lock cam (first cam), 27 ... P lock cam (second cam), 29 ... Return spring (biasing member), 30 ... Lock pin (first cam pin), 32 ... Cam surface, 33 ... Shift lock cable pin, 4 ... Shift lock cable, 37 ... Cable end, 38 ... Long Hole.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-249527 (JP, A) Actually opened 64-64824 (JP, U) Actually opened 1-171720 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A select lever for an automatic transmission, which is provided with a detent pin projectingly and selectively operated at each position including a parking position, and the detent pin is locked to fix the select lever to the parking position. A first cam capable of blocking the selection operation of the select lever; a cam mounting member pivotally supporting the first cam; and a shift lock cable pin pivotally supported by the cam mounting member, A second cam connected to the brake pedal via a shift lock cable and interlocking with the brake pedal;
The shift lock cable is provided at the end on the second cam side and has a long hole into which the shift lock cable pin is inserted, and the shift lock cable pin is moved along the long hole. And a cable end capable of being protruded from the second cam and locked to the first cam to prevent rotational displacement of the first cam when the brake pedal is not operated. A first cam that is rotationally displaced integrally with the second cam when the brake pedal is operated, and moves while coming into contact with the cam surface of the first cam and then separated from the first cam. A shift lock device for a vehicle, comprising: a pin; and an urging member that urges the second cam so that the first cam pin contacts the cam surface of the first cam.