JPH0738602Y2 - Vehicle key interlock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an improvement of a key interlock device for a vehicle such as an automobile equipped with an automatic match (A / T) transmission.

(Prior Art) Generally, a vehicle such as an automobile equipped with an automatic match (A / T) transmission is equipped with a shift lever for selecting a driving position. Position), R position (back position), N position (neutral position), D position (drive position), 2
Each operating position such as the position (second position) and the L position (low position) can be appropriately selected.

By the way, a shift lock device and a key interlock device have been adopted in combination as a measure against sudden start of a vehicle equipped with this type of automatic match (A / T) transmission. The shift lock device is configured such that the shift lever cannot be shift-shifted from the parking position to another driving position without depressing the brake petal. That is, the lock pin is connected to the brake petal via the cord, and the detent pin provided on the shift lever is P.
When in the position, the lock pin restricts withdrawal from this position. When the brake petal is stepped on, the lock pin is slid and biased via the cord, and the detent pin can be pulled out from the P position, that is, the shift position can be switched from the parking position to another driving position.

On the other hand, the key interlock device is designed so that the ignition key cannot be removed unless the shift lever is set to the parking position. In other words, in order to remove the ignition key, the shift lever must be in the parking position. Must be returned to. Further, once the ignition key is pulled out, the shift lever is restricted so that it cannot be shift-shifted from the parking position to another driving position.

The general structure and operation of this type of key interlock device are as follows.
It is as shown in FIGS. 4 to 7. As shown in FIGS. 5 and 6, a substantially columnar key lock body 2 is rotatably supported in the apparatus body 1. The key lock body 2 is provided with a notch 3 on a part of its peripheral surface along the axial direction with a predetermined arc width. Key cylinder 4 on one end
The ignition key 5 can be removably inserted only at a predetermined position of a key hole (not shown) described later, and is urged to rotate together with the key lock body 2 by rotating the ignition key 5. Has become. An ignition switch 6 is continuously provided on the other end surface, and is turned on when the ignition key 5 is rotated to a predetermined position. As shown in Fig. 4, LOC is placed around the key hole.
With the K, ACC, ON, and START positions set, you can insert or remove the ignition key 5 from the key hole by inserting the key hole into the LO
This is only when facing the CK position, and if it is adjusted to another position, a predetermined operation is performed and a key lock for the ignition key 5 is performed.

As shown in FIGS. 5 and 6 again, the rod slider 7 is slidably accommodated in the apparatus main body 1. The rod slider 7 has a cylindrical rod portion 8 whose axial direction is parallel to the axial direction of the key lock body 2, and a substantially triangular shape integrally provided on the peripheral surface of the rod portion 8 and has only a protruding end portion. It is composed of a stopper portion 9 protruding in a prismatic shape. An inner cable 11 forming a cord 10 is connected to one end surface of the rod portion 8. The outer tube 12 that covers the inner cable 11 is fixed to the end of the apparatus body 1.
Also, in this way the inner cable 11 and outer tube
The other end of the cord 10 composed of 12 and 12 is extended and connected to a shift lever device (not shown). When the shift lever shifts from the parking position to another driving position, or when shifting from another driving position to the parking position,
The inner cable 11 of the cord 10 slides the rod slider 7 along the axial direction. And again, when the shift lever is in the parking position,
As shown by the solid line in FIG. 5 and as shown in FIG. 7 (B), the rod slider 7 is arranged so that the stopper portion 9 faces the end surface of the key lock body 2 with a narrow space a. Is set. When the shift lever is operated to shift to a driving position other than the parking position, the rod slider 7 is urged to slide to the position shown by the chain double-dashed line in FIG. On the other hand, when the ignition key 5 is removed, that is, when the key hole faces the LOCK position, the end surface of the key lock body 2 other than the cutout portion 3 faces the stopper portion 9 of the rod slider 7, and If you insert the ignition key 5 and align it with a position other than the LOCK position,
The key lock body 2 rotates, and as shown in FIG. 7 (A), the stopper portion 9 of the rod slider 7 is extended on the extension of the cutout portion 3.
Will face each other.

Even if the shift lever is switched from the parking position to another operating position with the ignition key 5 removed, the stopper portion 9 of the rod slider 7 comes into contact with the end surface of the key lock body 2 to perform the shift operation. Regulate. For example, by inserting the ignition key 5 into the key hole and rotating it from the LOCK position to another position in order to start the engine or to energize the accessory lamps, the operation is performed and the key lock body 2 is rotated. The rod slider 7 is urged dynamically and extends above the notch 3.
Facing the stopper portion 9 of. Therefore, even if the shift lever is shifted from the parking position to another driving position, the rod slider 7 slides without being restricted by the key lock body 2, and the stopper portion 9 faces the cutout portion 3. Between the ACC, ON, and START positions, the key lock body 2 can be freely rotated without the cutout portion 3 coming into contact with the stopper portion 9 of the rod slider 7. Further, the engine may be stopped by setting the shift lever to the N position and setting the ignition key 5 to ACC from the engine driving state.
At this time, even if the ignition key 5 is rotated to the LOCK position in order to be removed, the end surface of the notch 3 of the key lock body 2 comes into contact with the stopper 9 of the rod slider 7 and the rotation is restricted. That is, the shift lever is shifted to the P position to displace the stopper portion 9 from the facing position of the notch portion 3 and displace it to the end surface of the key lock body 2, so that the LOC position is changed from the ACC position of the ignition key 5 to the LOC position.
It is possible to switch to the K position. Thus, the ignition key 5 cannot be removed from the key cylinder 4 unless the shift lever is returned to the parking position.

(Problems to be solved by the invention) However, there are still problems in this type of device. That is, when the shift lever is shifted from the driving position other than the parking position to the parking position, the stopper 9 of the rod slider 7 surely has a narrow gap a with respect to the end surface of the key lock body 2. 10 must urge the slider rod 7 to slide. When the rod slider 7 is not returned sufficiently and the gap a cannot be secured, the angle of the notch 3 comes into contact with the stopper 9 even if the key lock body 2 is urged to rotate, and the key lock body 2 The rotation of 2 is restricted. That is, even if the shift lever is returned to the parking position, the ignition key 5 cannot be returned to the LOCK position.

The apparatus main body 1 and the shift lever are far apart from each other, and the cord 10 connecting them is generally long in length, and the middle portion is usually bent. Moreover, the key lock body 3 and the rod slider 7 are housed in the main body 1 of the apparatus, and it is impossible to adjust the key lock body 3 and the rod slider 7 so as to secure the above-mentioned gap a when visually observed from the outside.

Further, from the beginning, the inner cable 11 is adjusted so that an excessive force is applied from the shift lever side to the apparatus main body 1 side so that the gap a becomes large, and the return amount of the rod slider 7 is increased to increase the key lock body. It is conceivable to avoid abutting on 2. However, this time, the middle portion of the inner cable 11 may be bent or buckled, and the shift lever may easily come out of the parking position. Therefore,
It is desirable that the gap a be as narrow as possible. On the other hand,
As described above, securing the gap a was very troublesome.

The present invention has been made in view of the above-mentioned circumstances, and when the shift lever is in the parking position, the rod slider connected to the shift lever via the cord-like body is securely narrowed with the end surface of the key lock body. It is an object of the present invention to provide a key interlock device for a vehicle, in which an appropriate load is applied to a cord to secure a gap, the adjustment work is easy and reliable, and the reliability is improved.

[Constitution of device]

(Means for Solving the Problems) According to the present invention, a key lock body is rotatably supported by a main body of an apparatus, and an ignition key can be removably inserted only at a predetermined rotation position. In which the rod slider is slid and urged when the rod slider is connected through the shift lever and the shift lever is shifted between the parking position and the driving position other than the parking position. The cable is slidably accommodated in an outer tube. One end of the inner cable is connected to the shift lever and the other end is connected to the rod slider, and one end of the outer tube is positionally adjustable to the shift lever side. And the other end is attached and fixed to the main body of the device, and one end of the outer tube is elastically pressed to the shift lever side. A key interlock device for a vehicle, comprising a biasing spring member.

(Function) Only when the shift lever is shifted to the parking position, the ignition key can be removed from the key lock body, and if the ignition key is removed from the key lock body, the shift lever can be moved from the parking position to another driving position. In the one that restricts shift switching, a spring member elastically presses and biases one end of the outer tube constituting the above-mentioned cord-like body toward the shift lever, thereby changing the radius of curvature of the middle portion of the cord-like body and changing the inner radius. The cable can be relatively urged toward the main body of the apparatus to secure a gap between the rod slider and the key lock body.

(Embodiment) Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3, and the same parts as those in FIGS. 4 to 7 described above are designated by the same reference numerals. And its description is omitted. First
As shown in the figure, the cord-shaped body 10 extended from the device main body 1
Has its end connected to the shift lever device S. Describing the shift lever device S, reference numeral 21 is a shift lever pivotally supported on the vehicle body via a pivot shaft 22, and 23 is a detent groove 24 for restricting a shift operation position of the shift lever 21. A detent plate having
This is attached and fixed to the vehicle body. In the detent groove 24, a detent pin 25 projecting in the middle of the shift lever 21 is engaged. That is, the detent pin 25 is slidably inserted in an elongated hole extending along the axial direction of the shift lever 21, and is elastically ordinarily elastically toward the head side of the shift lever 21 by a spring member (not shown). It is biased and thus engages the upper edge of the detent groove 24. Further, an operation button (not shown) is provided on the head of the shift lever 21 so as to be able to project and retract, and the detent pin 25 resists the elastic biasing force in accordance with the pushing operation of the operation button, and the upper edge of the detent groove 24. It is designed to be moved and operated in a direction away from. A plurality of steps are formed at the upper edge of the detent groove 24, and each operating position such as P position, R position, N position, D position, 2 position, and L position is set in each step. . Further, the groove edge portion inside the detent groove 24 serves as a pin moving passage through which the detent pin 25 moves in accordance with the rotation operation of the shift lever 21.

On the other hand, a cam 27 is rotatably supported by the detent plate 23 via a pin 26. A groove portion 28 on which the detent pin 25 can be engaged and disengaged is provided at one side edge of the cam 27, and when the detent pin 25 is in the P position, the detent pin 25 can be slid by operating the operation button. Thus, the cam 27 can be urged to rotate at the same time. Further, a fixing member 29 for connecting and fixing the end portion of the inner cable 11 extending from the apparatus main body 1 is provided at one end portion of the cam 27.
Therefore, as the cam 27 rotates, the inner cable 11
Slides to urge the rod slider 7 in the apparatus body 1 to slide.

As shown in FIGS. 1 and 2, a detent plate
A support bracket portion 30 which is bent into a substantially L-shape is integrally provided at the end of 23, and the rising bent piece portion is engaged to support the outer tube 12 of the cord-like body 10. A groove 31 is provided. Further, on the horizontal piece of the support bracket portion 30, the horizontal piece of the tube position adjusting tool 32 fixed to the end portion of the outer tube 12 is superposed, and the support bracket is provided via a stopper 33 composed of a fixing bolt and a nut. It is attached and fixed to the part 30. A long hole 34 is formed in the horizontal piece of the tube position adjusting tool 32 along the same direction as the axial direction of the outer tube 12.
Is provided, and the mounting position of the tube position adjuster 32 can be adjusted within this range. Furthermore, between the end surface of the tube position adjuster 32 and the rising piece of the support bracket portion 30,
A position adjusting spring 35, which is a spring member, is provided. That is, the position adjusting spring 35 moves the outer tube 12 through the tube position adjusting tool 32 to the shift lever device S.
It will be elastically biased to the side.

Then, the key interlock device is assembled as necessary on the device body 1 side, and the end of the cord 10 is extended to the shift lever device S and fixedly connected. More specifically, attach the fixture 29 to the end of the inner cable 11,
The fixture 29 is fixed to the cam 27. A position adjusting spring 35 is inserted into the end portion of the outer tube 12, and a tube position adjusting tool 32 is fixed to the end portion of the outer tube 12.
Positioning spring 35 is interposed between the rising piece of
The tube position adjuster 32 is attached and fixed to the support bracket portion 30 by the stopper 33.

At this time, the rod slider 7 is adjusted so as to have a predetermined gap a with the key lock body 2 in the apparatus main body 1. To do this, the stopper 33 need only be loosened once. As shown in FIG. 3, the elastic force of the position adjusting spring 35 acts on the outer tube 12 via the tube position adjusting device 32, and the fixing device 29 fixes the inner cable 12 on the shift lever device S side. Press and urge to the side. However, the end portion of the inner cable 11 is fixed by the fixing tool 29, and the outer tube 12
The other end of is fixed to the apparatus main body 1. It is possible to freely slide the tube position adjusting tool 32 side which is one end of the outer tube 12 and the rod slider 17 side which is the other end of the inner cable 11. Therefore, the position adjusting spring 35
When one end of the outer tube 12 is pressed and urged in a predetermined direction by the elastic action of, the radius of curvature of the middle portion of the cord 10 itself changes, and the other end of the inner cable 11 is opposite to the outer tube 12. Will slide in the direction. Eventually, the position adjusting spring 35 applies an appropriate load to the inner cable 11, and the predetermined gap a of the rod slider 7 with respect to the key lock body 2 can be secured. When such adjustment work is completed, the stopper 33 is tightened at that position to fix the tube position adjuster 32, and the end position of the outer tube 12 is set.

[Effect of device]

As described above, according to the present invention, by using the spring member, an appropriate load is applied to the cord-like body and a predetermined gap between the key lock body and the rod slider in the main body of the apparatus can be easily and surely obtained. Thus, the adjustment work can be facilitated and the reliability can be improved.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a schematic configuration diagram of a vehicle key interlock device, and FIG. 2 is a front view showing a schematic configuration of a main part thereof, and FIG. Is a view for explaining the gap adjustment, FIG. 4 is a front view of a main part of a vehicle key interlock device, FIG. 5 is a longitudinal sectional view of the main part, FIG. 6 is an exploded perspective view of the main part, and FIG. (A) And (B) is a figure explaining the operation. 1 ... Device body, 5 ... Ignition key, 2 ... Key lock body, 21 ... Shift lever, 10 ... Cord, 7 ...
… Rod slider, 11 …… Inner cable, 12 …… Outer tube, 35 …… Spring member (position adjustment spring).

Claims (1)

[Scope of utility model registration request] 1. A device main body, a key lock body rotatably supported by the device main body, into which an ignition key can be removably inserted only at a predetermined rotational position, a shift lever and a cord body. The shift lever is shifted to the parking position by connecting the shift lever to a parking position and a rod slider that is urged to slide through the cord when the shift operation is performed between the parking position and the driving position other than the parking position. Only when the ignition key can be removed from the key lock body, and if the ignition key is removed from the key lock body, the shift switching from the parking position of the shift lever to another driving position is restricted. Is an inner cable whose one end is connected to the shift lever and the other end is connected to the rod slider. The inner cable is slidably accommodated, one end of which is supported on the shift lever side for position adjustment, and the other end is an outer tube that is attached and fixed to the apparatus main body side. A spring member for elastically urging the shift lever side to relatively displace the inner cable and urging the inner cable side to set the position of the rod slider with respect to the key lock body. Vehicle key interlock device.