JPH0714056Y2 - Shift lock device for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a vehicle shift lock device provided in, for example, an automobile having an automatic transmission.

(Prior Art) For example, in an automobile equipped with an automatic transmission, generally,
By operating the select lever 1 as shown in FIG. 2, each operating range of the automatic transmission, that is, P (perkigugu) range, R (reverse) range, N (neutral)
The range, D (drive) range, 2 (second) range, and L (low) range can be selected. The positioning of the shift lever 1 in each of the above ranges is performed by the mechanism shown in FIG.

That is, FIG. 3 shows a schematic configuration of a select lever device including the shift lever 1. Reference numeral 2 in the drawing denotes a mounting bracket to which the detent plate 3 is fixed, and the base end portion of the shift lever 1 is pivotally supported on the mounting bracket 2 about a rotating shaft 4. Further, a detent pin 5 is provided on the lower end side of the shift lever 1 so as to project. The detent pin 5 is slidable along the axial direction of the select lever 1, and is moved up and down by an occupant's finger operation on an operation button 1a provided on the upper end of the select lever 1. The detent pin 5 slides downward when the operation button 1a is pushed in, and is pushed in again.
When you release your finger from 1a, it will return upward due to the urging force of a spring member (not shown).

Further, the detent plate 3 fixed to the above-mentioned mounting bracket 2 has a translucent detent pattern 6 on its plate surface. The upper edge portion 7 of the detent pattern 6 has a plurality of irregularities. The unevenness of the edge portion 7 is formed so as to correspond to each of the operation ranges as indicated by the six single-dot chain lines a ... In the figure. Dintent pin 5 is locked. In the figure, the detent pin 5 is P
It is inserted and locked in the recess corresponding to the range.

When selecting each of the operating ranges such as P, R, N, D, 2, and L, the operation button 1a is pushed in and the detent pin 5 is slid downward. Then, the detent pin 5 is separated from the unevenness of the upper edge portion 7 of the detent pattern 6 and moved into the movement track 8 on the lower edge side of the detent pattern 6. After that, the select lever 1 is rotated to an arbitrary shift position. Then, after moving the select lever 1 to an arbitrary shift position, the finger is released from the operation button 1a to restore the detent pin 5. At this time, detent pin 5
Is locked to the unevenness formed on the upper edge portion 7 at an arbitrary shift position, whereby the select lever 1 is positioned. In addition, as shown in FIG. 2, a display plate 9 indicating each operation range is mounted in the vehicle interior,
The occupant can rotate the select lever 1 while looking at the display plate 9.

Further, some of such shift lever devices are provided with a shift lock device in order to prevent an occupant from erroneously operating the select lever 1. As shown in FIG. 3, this shift lock device has a P lock lever 11 as a parking lock member which is interlocked with the brake pedal 10 mounted on the shift lever device. The operation of the detent pin 5 is restricted.

That is, the shift lock device is mainly composed of the brake pedal 10 pivotally supported on the vehicle body side and the P lock lever 11, and the shift lock cable 12 as a connecting member for connecting the brake pedal 10 and the P lock lever 11 together. It consists of and. Of these, the P lock lever 11
Is pivotally supported by the detent plate 3 at its base end via a rotary shaft 13. Further, a flat portion 14 is provided at the free end of the P lock lever 11. The flat portion 14 is formed so as to substantially face a concave portion of the upper edge portion 7 of the detent pattern 6 that corresponds to the parking position, and the detent pin 5 inserted in the concave portion.
It is located just below.

Further, as shown in FIG. 4, the shift lock cable 12 includes an outer cable 16 whose one end 15 is fixed to the vehicle body, and an outer cable 16.
It is composed of an inner cable 17 coaxially inserted into the inside of 16. Of these, the outer cord 16 is connected to the other end 18 of the cylinder 19
It is slidably inserted in. Further, a coil spring 20 is interposed between the other end portion 18 and the inner wall 19a of the cylinder 19. The outer cord 16 is axially biased from the other end 18 side to the one end 15 side by the coil spring 20. The cylinder 19 is built in a case 21 fixed to the vehicle body side.

Further, a flange portion 22 is provided in the middle portion of the outer cable 16, and the flange portion 22 is provided on the side of the other end portion 18 of the brake pedal side bracket 23 that interlocks with the brake pedal 10 by inserting the outer cable 16. Abutting from. The flange portion 22 is pressed against the brake pedal side bracket 23 by the biasing force of the coil spring 20. The bracket 23 on the brake pedal side is fixed to the brake pedal 10. The bracket 23 is linked to the movement of the brake pedal 10, and
It is possible to move along the line 16 toward the one end 15 side, that is, the side indicated by the arrow A in the figure.

Further, the inner cable 17 is inserted inside the outer cable 16, and both ends 24 and 25 thereof are exposed from the both ends 15 and 18 of the outer cable 16. One end 24 of the inner cable 17 is connected to a portion of the P lock lever 11 above the base end.
The other end 25 of the inner cable 17 is fixed to the inner wall 19a of the cylinder 19. The inner cable 17 is relatively movable along the outer cable 16.

Next, the operation of such a shift lock device will be described. First, when the brake pedal 10 is stepped on, the brake pedal side bracket 23 moves in the direction away from the flange portion 22, that is, to the arrow A side in FIG. As a result, the flange 22 is braked by the reaction force of the spring 20 to the brake pedal side bracket.
Move to follow 23. Then, the other end portion 18 of the outer cable 16 formed integrally with the flange portion 22 strokes toward the one end portion 15 side by the movement amount of the brake pedal side bracket 23. However, since the one end 15 of the outer cable 16 is fixed to the vehicle body, the outer cable 16 is bent.

On the other hand, the inner cord 17 inserted inside the outer cord 16 is
Flex along the flex of. At this time, since the other end 25 of the inner cable 17 is fixed to the vehicle body via the case 21, the one end 24, which is a free end, is pulled toward the other end 25. Furthermore, the movement of the inner cable 17 causes the P lock lever 11 to move.
Is pulled and rotates about the base end portion connected to the rotation shaft 13. Then, when the P lock lever 11 is pulled by the inner cable 17 and rotated, the detent pin 5 of the select lever 1 moves to P
The lock lever 11 is released from the flat portion 14 and released. As a result, the detent pin 5 can freely slide downward, and the select lever 1 can be rotated from the parking position to another position.

Further, when the select lever 1 is in the parking position, the P lock lever 11 always has its flat portion 14 positioned directly below the detent pin 5. Therefore, when selecting the other range from the P range, if the select lever 1 is operated without stepping on the brake pedal 10, the detent pin 5 will be locked in the flat portion 14 of the P lock lever 11. I can't slide down. That is, the other range can be selected from the P range only after the brake pedal 10 is stepped on, so it is possible to prevent the vehicle from suddenly starting due to an erroneous operation of the automatic transmission.

By the way, in such a shift lock device, the outer cable 16 is likely to expand over time, which may cause displacement of the mounting state of the P lock lever 11. Further, since the outer cable 16 needs a sufficient space around it to move, the outer cable 16 cannot be fixed to the vehicle body side. Therefore, when the outer cord 16 contacts a member arranged around the outer cord 16, the outer cord 16 may be blocked from moving. This may cause malfunction of the shift lock device.

If the occupant is unfamiliar with the vehicle equipped with such a shift lock device, before depressing the brake pedal 10,
The operation button 1a of the select lever 1 may be pushed and operated. In such a case, the detent pin 5 may press the flat portion 14 of the P lock lever 11 and press the P lock lever 11. As a result, the P lock lever 11 becomes unrotatable, and even if the brake pedal 10 is stepped on, one end 24 of the inner rope 17 cannot move and the shift lock cannot be released.

(Problems to be Solved by the Invention) As described above, in the conventional shift lock device, the inner rope 17 is moved by using the reaction force generated by the movement of the outer rope 16. Therefore, if the outer cable 16 comes into contact with another member and its movement is blocked, or if the detent pin 5 is pressed against the P lock lever 11, one end of the inner cable 17 should be moved sufficiently. Could not be performed, resulting in malfunction.

An object of the present invention is to provide a highly reliable shift lock device that can reliably release the shift lock by stepping on the brake.

[Constitution of device]

(Means and Actions for Solving the Problems) In order to achieve the above object, the present invention provides a rotatable parking lock member for engaging a detent pin of a select lever in a parking position, and a rotatable lock member with respect to a vehicle body. A shift lock device for a vehicle, which has a brake pedal supported freely and which releases the parking lock member from a detent pin when the brake pedal is stepped on, a rotatable lever member having a protrusion, and a brake. A holding member that is interlocked with the pedal and that can hold the protrusion, a connecting member that connects the lever member and the parking lock member, and releases the parking lock member from the detent pin by rotating the lever member is provided. , The protrusion is rotated and displaced by the holding member to the position where the trajectory of the retaining member and the trajectory of the protrusion intersect. To rotate the lever member.

By so doing, the present invention improves the reliability of the vehicle shift lock device by ensuring that the shift lock can be released when the brake pedal is depressed.

(Embodiment) An embodiment of the present invention will be described below with reference to FIG.
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.

FIG. 1 shows an essential part of one embodiment of the present invention.
Is a pedal arm of the brake pedal 10. The pedal arm 31 is pivotally supported at its base end on the vehicle body side and is rotatable about a rotation shaft 32. At the free end (not shown) of the pedal arm 31, there is provided, for example, a step board or the like that is stepped on by an occupant. Further, the brake pedal 10 is integrally provided with a guide 34 as a holding member that forms a gap 33 between the brake pedal 10 and an end edge of the pedal arm 31 and extends toward the base end side. The tip of the guide 34 and the edge of the brake arm 31 are separated from each other.

Reference numeral 35 in the figure denotes a crank lever as a lever member. The crank lever 35 is composed of a plate-like member formed in a substantially V shape, and its central portion is pivotally supported near the brake lever 31, for example, on the vehicle body side. Further, a stopper 37 is provided at one end of the crank lever 35 which is separated from the rotating shaft 36. The stopper 37 has a P lock member.
The lock lever 11 is connected to the other end 25 of the inner cable 17, which is connected to one end (not shown).

Further, the crank lever 35 is biased by a coiled return spring 38. That is, the return spring 38 has one end 38a fixed to, for example, the vehicle body side, and the other free end connected to the crank lever 35 near the stopper 37. The return spring 38 urges the crank lever 35 to rotate about the rotary shaft 36 toward the fixed end 38a in the direction indicated by arrow B in the figure.

Further, a locking pin 39 as a protrusion is provided at the other end of the crank lever 35 so as to project. And this locking pin 39
It is inserted into the gap 33 between the edge of the brake lever 31 and the guide 34, and is locked to the guide 34. Further, the locking pin 39 is pressed against the end edge portion of the brake lever 31 by the urging force of the return spring 38.

Next, the operating state of the shift lock device having such a configuration will be described. First, when the brake pedal 10 is depressed, the brake pedal 10 rotates about its rotation shaft 32 as shown by a chain double-dashed line C in the figure. When the brake lever 31 rotates, the guide 34 pushes the locking pin 39 of the crank lever 35. As a result, the crank lever 35 rotates about the rotation shaft 36 in the direction indicated by the arrow B in the figure.

Further, by rotating the crank lever 35, the inner cable 17 connected to the stopper 37 is pulled toward the side indicated by the arrow D in the figure. Then, the crank lever 35 pulls the P lock lever 11 together with the inner rope 17 to rotate the P lock lever 11.
In other words, the crank lever 35 forcibly pulls the inner cable 17,
Release the shift lock of the select lever 1 by the lock lever 11.

Further, the tip of the guide 34 provided on the brake pedal 31 is displaced along a locus shown by a chain line E in the figure. On the other hand, the locking pin 39 of the crank lever 35 is shown by a chain line F in the figure.
Draw a locus and move. Therefore, the brake pedal 31 is depressed and the guide 34 and the locking pin 39 are
When passing through the intersection G between the loci E and F, the locking pin 39 is disengaged from the guide 34. After the locking pin 39 is disengaged from the guide 34, the locking pin 39 is released from the regulation by the guide 34, so that the crank lever 35 can be stopped. Incidentally, for example, the size of the guide 34 is set so that the release of the detent pin 5 by the P lock lever 11 is already completed when the crank lever 35 stops.

Also, for example, when the foot of the occupant is released from the brake pedal 10,
When the brake pedal 10 returns to its original position by a spring member or the like (not shown), the locking pin 39 enters the gap 33 and locks on the guide 34. That is,
When the brake lever 31 returns to a certain position, it comes into contact with the locking pin 39 of the crank lever 35. Then, the brake lever 31 further rotates in the return direction to push back the locking pin 39 and rotate the crank lever 35. Furthermore, when the guide 34 and the locking pin 39 reach the renewal G of the loci E and F, the locking pin 39 enters the gap 33 between the guide 34 and the brake lever 31 and engages with the guide 34. Stop.
Then, when the brake pedal 10 returns to the original position before the depression operation, the inner rope 17 is pushed back, and the return of the P lock lever 11 is completed. Therefore, this shift lock device can be repeatedly operated.

In the shift lock device having such a structure, since the inner rope 17 is forcibly pulled by the crank lever 35, malfunction does not easily occur. That is, even if the mounting state of the P lock lever 11 changes over time and the P lock lever 11 is displaced, the crank lever 35 forcibly pulls the inner rope 17 to absorb the misalignment. can do. Also,
Even if other members around the outer cable 16 come into contact with the outer cable 16 and the movement of the outer cable 16 is hindered, the inner cable 17 is forcibly pulled, so that the outer cable 16 is moved without being affected by the blocked outer cable 16. It is possible to rotate the P lock lever 11. Therefore, it is possible to prevent malfunction.

Further, even if the occupant pushes the operation button 1a of the select lever 1 before depressing the brake pedal 10 to push the P lock lever 11 with the detent pin 5, the outer cord 16
P due to the reaction force due to the movement of and the pulling force of the clamp lever 11.
Since the lock lever 11 is rotated, the shift lock can be reliably released, and the release failure can be prevented.
In addition, it is possible to improve the reliability of the rope friction between the outer rope 16 and the inner rope 17.

[Effect of device]

As described above, the present invention has the rotatable parking lock member for locking the detent pin of the select lever in the parking position, and the brake pedal rotatably supported with respect to the vehicle body. In a vehicle shift lock device that releases a parking lock member from a detent pin when a pedal is depressed, a rotatable lever member having a protrusion, and a holding member that is capable of holding the protrusion in conjunction with a brake pedal. A connecting member that connects the lever member and the parking lock member and releases the parking lock member from the detent pin by rotating the lever member, and the trajectory of the holding member and the trajectory of the protrusion intersect when the brake pedal is depressed. The lever member is rotated by displacing the projection to the position by the holding member.

Therefore, the present invention has the effect that the shift lock can be reliably released as the brake pedal is depressed, and the reliability of the vehicle shift lock device can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing an essential part of an embodiment of the present invention, FIGS. 2 to 4 show a conventional example, and FIG. 2 is a perspective view showing the appearance of a general select lever device. FIG. 3 is a schematic configuration diagram of a select lever device to which a shift lock device is attached, and FIG. 4 is a schematic configuration diagram of the shift lock device. 1 …… Select lever, 5 …… Detent pin, 10 ……
Brake pedal, 11 …… P lock lever (parking lock member), 12 …… Shift lock cable (connecting member), 16 …… Outer cable, 17 …… Inner cable, 34 …… Guide (holding member), 35 …… Crank lever (lever member), 39 ... Locking pin (projection).

Claims (1)

[Scope of utility model registration request] 1. A rotatable parking lock member for locking a detent pin of a select lever in a parking position, and a brake pedal rotatably supported with respect to a vehicle body. The brake pedal is depressed. In a shift lock device for a vehicle, which releases the parking lock member from the detent pin when the vehicle is hit, a rotatable lever member having a protrusion and a holding member capable of holding the protrusion in conjunction with the brake pedal. And a connecting member that connects the lever member and the parking lock member and releases the parking lock member from the detent pin by rotating the lever member, and the locus of the holding member when the brake pedal is depressed. And the protrusion is rotated and displaced by the holding member to a position where the path of the protrusion intersects with the locus of the protrusion. The vehicle shift lock apparatus characterized by rotating the lever member Te.