JP2849150B2 - Steering lock device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device, and more particularly to a steering lock device that ensures safety when starting an engine of a vehicle having an automatic transmission.

2. Description of the Related Art In a vehicle equipped with a shift lever that operates an automatic transmission, when the shift lever is operated from a parking position to various positions at the time of starting the engine, in order to prevent sudden oscillation at the time of starting the vehicle, which occurs, Safety devices are provided.
For example, as shown in Japanese Utility Model Laid-Open Publication No. 64-52935, in a safety device configured by using electric means, when the ignition switch is turned on, the depression state of the brake pedal is detected and the shift lever is moved. It is possible to shift from the parking position to another position. In this structure, a brake switch that detects depression of a brake pedal and a solenoid that controls pressing of a knob of a shift lever are provided. When the ignition switch is switched to the on position and the brake switch is turned on, the solenoid moves to a position that allows pressing of the knob of the shift lever.

However, a structure using electrical means cannot reduce the cost of the safety device. Therefore, a mechanical safety device using a wire has recently been developed. For example, the actual opening 64-47
No. 432 and Japanese Unexamined Utility Model Publication No. 1-154928 disclose an AT shift lock device capable of operating a shift lever from a parking position to another position by disengaging a lock plate and a detent pin when a brake pedal is depressed. It has been disclosed. Further, in Japanese Utility Model Laid-Open No. 1-150877, after switching the steering lock device to the ACC position, the shift lever can be moved to a position other than the parking position, and if the shift lever is not returned to the parking position, the shift from the ACC position is required. A vehicle key interlock device in which a key cylinder cannot be rotated to a locked position is disclosed. In addition,
Japanese Patent Publication No. 114325 discloses a shift lever locking device that can move a shift lever from a parking position to another position only when a key cylinder is rotated to an ACC position or an ON position and a brake pedal is depressed.

SUMMARY OF THE INVENTION In the interlock device disclosed in Japanese Utility Model Laid-Open No. 1-150877, it is possible to move the shift lever to a position other than the parking position after rotating the key to the ACC position. Further, in the lock device disclosed in Japanese Utility Model Laid-Open Publication No. 1-114325, when the key is rotated to the ACC position and then the brake pedal is depressed, the shift lever can be moved to a position other than the parking position. In this lock device, the engagement between the cam projection of the key rotor and the tip of the lock lever is released so that the shift lever can be moved to a position other than the parking position when the key is rotated to the ACC position or the ON position. When the key is in the ACC position, the shift lever can be moved to the parking position only when the shift lever is in a position other than the parking position, the key is turned from the on position to the ACC position, and the engine is stopped. This is because the shift lever is moved to the parking position in the ACC position. However, when starting, the AC
Turn the key to the C position and once press the brake pedal,
Since the shift lever can be moved to a position other than the parking position, immediately after starting the engine in the neutral position,
If the shift lever is moved to the drive position without stepping on the brake, there is a risk of sudden starting. Therefore, with this structure, safety at the time of starting the engine cannot be sufficiently ensured. For this reason, it is desirable that a structure in which the shift lever cannot be moved to a position other than the parking position when the key is rotated from the lock position to the ACC position is desirable.

Therefore, an object of the present invention is to provide a steering lock device that prevents a shift lever from moving when a key is rotated from a lock position to an ACC position.

Means for Solving the Problems In a steering lock device according to the present invention, a key cylinder rotatably arranged by a key in a frame between a lock position for locking a steering shaft and an unlock position for unlocking the steering shaft is provided. And a slider connected to the control piece for controlling the movement of the shift lever when the shift lever for operating the automatic transmission is moved from the parking position to another position, the slider being operatively connected to the key cylinder. The slider moves between a block position that prevents the shift lever from moving and a release position that allows the shift lever to move.

The stopper portion is provided on the key cylinder or a rotating member connected to the key cylinder. The stopper has a first stopper surface for preventing the slider from moving to the release position when the key cylinder is in the lock position, and the key cylinder is provided with the AC cylinder.
A second stopper surface for preventing movement of the key cylinder to the locked position when the slider is at the C position and the slider is at the release position.

The one-way movement restricting means prevents movement of the slider to the release position when the key cylinder is at the ACC position and the slider is at the block position, and prevents movement of the slider when the key cylinder is at the ACC position and the slider is at the release position. Allow movement to block position.

The stopper is formed integrally with the latch member and is urged by the elastic member. In the embodiment of the present invention, the slider can be moved from the block position to the release position only when the brake pedal is depressed.

The one-way movement restricting means has a latch member disposed in the hole of the key cylinder or the rotation member, and an elastic member for urging the latch member toward the outside of the hole of the key cylinder or the rotation member. The latch member has a radial surface that forms substantially the same plane as the stopper surface, and an inclined surface provided on the back side of the radial surface. When the key cylinder is in the ACC position and the slider is in the block position, the slider abuts the radial surface of the latch member to prevent the slider from moving to the release position. When the key cylinder is at the ACC position and the slider is moved from the release position to the block position, the slider comes into contact with the inclined surface of the latch member and the latch member moves radially inward against the elasticity of the elastic member, The slider can be moved to the block position.

In another embodiment of the present invention, the one-way movement restricting means comprises a stop portion elastically supported by the slider and an additional stopper provided on the key cylinder or the rotating member. The additional stop has a radial surface that is substantially coplanar with the first stop surface of the stop, and an inclined surface provided on the back side of the radial surface. Key cylinder
When in the ACC position and the slider is in the block position, the stop of the slider abuts against the radial surface of the additional stop to prevent movement of the slider to the release position. When the key cylinder is in the ACC position and the slider is moved from the release position to the block position, the stop of the slider can resiliently ride over the slope of the additional stop to the block position.

The stop has a pin supported in the hole of the slider and an elastic member for urging the pin toward the outside of the hole of the slider.

When the key cylinder is rotated from the lock position to the ACC position, the one-way movement restricting means prevents the slider in the block position from moving to the release position. Therefore, the shift lever is held in the parking position, and the output shaft of the transmission is maintained in a mechanically fixed state, so that the vehicle does not move due to its own gravity even on an inclined road. Once, AC
After rotating the key cylinder from the C position to the ON position, the shift lever can be moved from the parking position to another position. Also, regardless of the position of the shift lever,
The engine can be stopped by immediately switching the key cylinder in the ON position to the ACC position. Further, when the key cylinder is rotated to the ACC position and the slider is at the release position, the slider abuts the second stopper surface of the stopper portion, so that the slider prevents the key cylinder from rotating to the locked position. Therefore, it is possible to make the driver recognize that the shift lever is returned to the parking position. In this case, the one-way movement restricting means allows the shift lever at the release position to move to the block position, so that the shift lever can be smoothly returned to the parking position.

The latch part constituting the one-way movement restricting means is arranged in the hole of the key cylinder or the rotating member, and is urged toward the outside of the hole by the elastic member. The radial surface of the latch member prevents the slider in the block position from moving to the release position. In addition, since the inclined surface of the latch member allows the slider at the release position to move to the block position, when the slider moves to the block position, the inclined surface of the latch member allows the latch member to resist the elasticity of the elastic member. Then, the slider is moved radially inward, and the slider can move along the inclined surface.

Further, in another embodiment of the present invention, the movement of the stop provided as one-way movement restricting means and elastically supported by the slider is controlled by an additional cam formed on a key cylinder or a rotating member. Is regulated by the mechanical stopper. That is, the stop abuts against the radial surface of the additional stopper. At this time, the movement of the slider from the block position to the release position is prevented. Also, when the key cylinder is in the ACC position and the slider is in the release position, the stop resiliently rides over the inclined surface of the additional stopper, and the slider is smoothly moved from the release position to the block position.

An embodiment of the steering lock device according to the present invention will be described below with reference to FIGS.

The shift lever 110 shown in FIGS.
And is rotatably supported via. The shift lever 110 is
A parking position P provided in the opening 121 of the control plate 120,
It is rotated to each shift position such as the reverse shift position R, the neutral shift position N, and the traveling shift position. The handle of the shift lever 110 is provided with a knob 111, and the pressing of the knob 111 is converted into a vertical movement of a rod 113 inserted into the lever tube 112. The shift pin 114 provided at the tip of the rod 113 is pushed down against the elasticity of the spring 115. The above structure is known, and as shown in FIG. 6, when the shift pin 114 is engaged with the parking position P by the pressing force of the spring 115, the shift lever 110 cannot move from the parking position P to another shift position. .

The rotating lever 130 is rotatably supported via a shaft 131 substantially below the parking position P of the control plate 120. The rotating lever 130 has a pin engaging end 13 from both sides of the shaft 131.
0a and a cable connection end 130b, and when the shift pin 114 moves from the parking position P to the reverse shift position R, the shift pin 114 presses the pin engagement end 130a, and the rotating lever 130 is turned around the shaft 131. Rotate clockwise. Further, the other end of the cable 140 having one end connected to the slider 50 of the steering lock device 10 is connected to the cable connection end 130b, and a pin connection centering on the shaft 131 when the rotation lever 130 rotates. The mating end 130a or the cable connecting end 130b is rotated.

When the knob 111 of the shift lever 110 is pressed, the shift pin
114 is pushed down against the spring 115, and the rotating lever
It reaches the inside of the pin engaging end 130a of 130. Next, when the shift lever 110 is shifted to a position other than the parking position, the rotation of the shift lever 110 causes the shift pin 114 to press the pin engaging end 130a of the rotary lever 130, and the rotary lever 130 rotates about the shaft 131. Rotate the whole counterclockwise.

By the rotation of the rotation lever 130, the cable connection end 130b pulls the cable 140 to the left as shown in FIG. At the same time, the pin engaging end 130a is
22 is released, and the shift pin 114 can move toward another shift position through the gap 122. The rotation of the rotation lever 130 causes the shift pin 114 to move to the pin engagement end of the rotation lever 130.
130a, the cable 140 is pulled, and the pivot lever 1
30 is held in an inclined state. When the shift lever 110 moves from the parking position P to another position, the cable 140
Into a pull state in which a tensile force is applied. Shift lever 11
When 0 is returned to the parking position P again, the shift pin 114 rotates the rotating lever 130 clockwise, and returns from the state shown in FIG. 8 to the state shown in FIG. When returning the shift lever 110 to the parking position P, the cable 140 enters a push state in which a compressive force is applied.

As shown in FIGS. 1 to 3 and 3A, a steering lock device 10 according to the present invention includes a frame 11, a sleeve 12 disposed in the frame 11, and a cap fixed to a front portion of the sleeve 12. 13 and. In a hole 14 formed in the sleeve 12, a key cylinder 16 having a flange 15 is provided.
Are rotatably arranged. A plurality of tumblers 17 are mounted on the key cylinder 16 as is well known.

A check lever 20 is attached to the sleeve 12 so as to be slidable in the longitudinal direction, and a dog 22 is mounted in a hole 21 formed in the flange 15 of the key cylinder 16 so as to be slidable in the radial direction. The key cylinder 16 is mounted in a hole 24 of a rotating member 23 rotatably and coaxially arranged within the frame 11. Further, the key cylinder 16 is pressed outward between the key cylinder 16 and the rotating member 23 by a spring 25 disposed in a hole 24 of the rotating member 23. Also a locking rod
18 is attached so as to be able to advance and retreat from a hole 19 of the frame 11.
However, the check lever 20, the dog 22, and the locking rod 18 have the same structure and operation and effect as those disclosed in Japanese Patent Publication No. 60-42055. Further, the key detecting member 26 and the key detecting switch 27 have the same structure and operation and effect as those disclosed in Japanese Patent Application Laid-Open No. 59-3829, so that detailed description thereof will be omitted.

As shown in FIG. 1, FIG. 2 and FIG.
A latch member 31 serving as a one-way movement regulating means is slidably disposed in a hole 30 formed in 23. In the hole 30, a spring 32 is provided as an elastic member for urging the latch member 31 to the outside of the rotating member 23. The latch member 31 is formed with a hole 31a through which a pin 33 fixed in the hole 23a of the rotating member 23 passes. As shown, a radial surface 35 and an inclined surface 36 are formed on the protruding end 34 of the latch member 31.

As shown in FIGS. 1 and 3A, the stopper portion 40 provided on the outer peripheral surface of the rotating member 23 has a first stopper surface 40a and a first stopper surface 40a as shown in FIG. And a second stopper surface 40b formed substantially at right angles to the second stopper surface 40b.
As shown in FIG. 4, a slider that moves between a block position (FIG. 4A) that prevents the shift lever 110 from moving and a release position (FIGS. 4B to 4D) that allows the shift lever 110 to move. 50 is provided in the frame 11. Slider
50 is used to move the shift lever 110 for operating the automatic transmission from the parking position to another position.
It is connected by a cable 140 to a rotating lever 130 that controls the movement of zero. In addition, the slider 50 has an arm portion 50a provided so as to be able to engage with the first stopper surface 40a and the second stopper surface 40b of the stopper portion 40. The arm 50a extends through the opening 11a formed in the frame 11 to extend inside the frame 11 so as to be able to contact the stopper 40, and is operatively connected to the rotating member 23. FIGS. 4A and 4B show sliders by hatching.
FIG. 4D shows a state in which the slider 50 is in the release position.

When the key cylinder 16 is at the lock position shown in FIG. 4A, the first stopper surface 40a of the stopper portion 40 contacts the slider 50 at the block position to prevent the slider 50 from moving to the release position. When the key cylinder 16 is in the ACC position and the slider 50 is in the release position shown in FIG. 4B, the second stopper surface 40b of the stopper portion 40 is brought into contact with the slider 50 to move to the locked position of the key cylinder 16. Prevent movement.

As shown in FIG. 4B, when the key cylinder 16 is at the ACC position and the slider 50 is at the block position, the latch member 31 comes into contact with the radial surface 35 of the latch member 31 to the release position. Of the slider 50 is stopped.
Further, as shown in FIG. 4D, when the key cylinder 16 is at the ACC position and the slider 50 is at the release position, the slider 50 comes into contact with the inclined surface of the The latch member 31 moves radially inward against the elasticity, and allows the slider 50 to move to the block position.

In the above configuration, the latch member 31 is
It is located within 30 and is biased out of bore 30 by a spring 32. Key cylinder 16 is locked from the locked position (Fig. 4A).
When rotated to the position (FIG. 4B), the radial surface 35 of the latch member 31 prevents the slider 50 in the block position from moving to the release position. Therefore, shift lever 110 is held at the parking position, and the state where the output shaft of the transmission is mechanically fixed is maintained. Once the key cylinder 16 is rotated from the ACC position (FIG. 4B) to the ON position (FIG. 4C), the shift lever 110 can be moved from the parking position to another position. Also, shift lever
Key cylinder 1 in the on position, regardless of the position of 110
It is possible to switch the 6 immediately to the ACC position and stop the engine. Further, as shown in FIG. 4D, when the key cylinder 16 is rotated to the ACC position and the slider 50 is at the release position, the slider 50 contacts the second stopper surface 40b of the stopper portion 40. Therefore, the slider 50 prevents the rotation of the key cylinder 16, so that the key cylinder 16 is prevented from moving to the locked position. Therefore, the driver can recognize that the shift lever 110 is returned to the parking position.

In this case, the slider 50 is at the position shown in FIG. 5A.
When the slider 50 is moved to the block position, the arm portion 50a of the slider 50 comes into contact with the inclined surface 36 of the latch member 31 (FIG. 5B). Further, when the slider 50 is moved to the block position, as shown in FIG.
As a result, the latch member 31 is moved radially inward against the resilience of the spring 32, and the slider 50 can move along the inclined surface 36, so that the slider 50 moves to the block position shown in FIG. 5D. Thus, the shift lever 110 can be smoothly returned to the parking position.

Further, in the embodiment of the present invention, if the shift lever 110 in the parking position is moved to another position by the electric means or the mechanical means only when the brake pedal is depressed, the safety at the time of starting the engine is improved. It will be appreciated that can be improved. In this case, the slider at the block position can move to the release position when the brake pedal is depressed.

The above embodiment of the present invention can be variously modified. For example, as shown in FIG.
The 51 is provided with a spring 52 and a pin 53 as a stop portion urged outward by the spring 52 as one-way movement restricting means. In FIG. 9, the same portions as those shown in other drawings are denoted by the same reference numerals, and description thereof will be omitted. Additional stopper 54
Is formed as a cam surface on the rotating member 23, and the stopper portion 40
The first stopper surface 40a has a radial direction 54a substantially coplanar with the first stopper surface 40a, and an inclined surface 54b provided on the back side of the radial surface 54a. Key cylinder 16 is in ACC position and slider 5
When 0 is in the block position, pin 53a is an additional stopper
Slider 5 to the release position by contacting the radial surface 54a of 54
Prevent movement of 0. Therefore, the movement of the slider 50 from the block position to the release position is prevented. Also, when the key cylinder 16 is at the ACC position and the slider 50 is moved from the release position to the block position, the pin 53 can move over the inclined surface 54b of the additional stopper portion 54 elastically and move to the block position. The slider 50 is smoothly moved from the release position to the block position.

 The embodiment of the present invention can be modified.

(1) In the above embodiment, the stopper member 40 and the additional stopper portion 54 are provided on the rotating member 23, but the stopper members 40 and 54 may be formed on the key cylinder 16 instead of the rotating member 23.

(2) It is also possible to form an additional stopper 54 integrally with the latch member 31 so as to elastically project from the hole of the rotating member 23 or the key cylinder 16 by a spring.

(3) Instead of the pin 53, a synthetic resin or metal elastic piece is provided on the slider 50 integrally or separately, and the stopper portion 40 is provided.
And the additional stopper 54 may be engaged.

As described above, in the steering lock device according to the present invention, when the key is rotated from the lock position to the ACC position, the shift lever can be prevented from moving, so that the output shaft of the transmission is mechanically secured in the ACC position. Fixed to For this reason, the movement of the vehicle due to the movement of the shift lever from the lock position to the ACC position is prevented, and safety during riding can be ensured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the steering lock device according to the present invention, taken along the line II of FIG. 3, and FIG.
FIG. 3 is a front view, FIG. 3A is a partially exploded perspective view of a rotating member, FIG. 4 is an operation diagram showing a positional relationship between a slider and a stopper, and FIG. B is an ACC position rotated from the lock position, C is an on position, D is an ACC position rotated from the on position, and FIG. 5 is an operation diagram showing a positional relationship between the latch member and the slider. Release position, B is the position where it comes into contact with the inclined surface, C is the position over the latch member, D is the slider in the block position, FIG. 6 is a sectional view of the shift lever, and FIG. FIG. 8 is a partially enlarged view of the shift lever showing a state in the middle of moving to another position, FIG. 8 is a partially enlarged view of the shift lever showing a state where the shift lever is moved to a position other than the parking position, and FIG. One-way transfer showing another embodiment of the invention It is a perspective view of a movement regulating means. 10 ... steering lock device, 11 ... frame, 16 ...
... Key cylinder, 23 ... Rotating member, 30 ... Hole, 31 ... Latch member (one-way movement restricting means), 32 ... Spring (elastic member), 35 ... Radial surface, 36 ... Slope surface , 40 ... stopper part, 40a ... first stopper surface, 40b ... second stopper surface, 50 ... slider, 51 ... hole, 52 ... spring (elastic member), 53 ... pin (stop) Part), 54 ... additional stopper part, 54a ... radial surface, 54b ... inclined surface, 110 ... shift lever, 140 ... cable

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60K 28/10 E05B 65/12

Claims (6)

(57) [Claims] 1. A key cylinder rotatably arranged by a key in a frame between a lock position for locking a steering shaft and an unlock position for unlocking a steering shaft, and a shift lever for operating an automatic transmission. A slider connected to the control plate for controlling movement of the shift lever when moving from the parking position to another position by a cable and operatively connected to the key cylinder, wherein the slider blocks movement of the shift lever; A steering lock device that moves between a shift position and a release position allowing movement of a shift lever, wherein a first stopper surface for preventing movement of the slider to the release position when the key cylinder is in the lock position; To the locked position of the key cylinder when the slider is in the release position. A stopper portion having a second stopper surface for preventing the movement of the slider is provided on the key cylinder or the rotating member connected to the key cylinder, and when the key cylinder is at the ACC position and the slider is at the block position, the slider is released. A steering lock device which is provided with a one-way movement restricting means for preventing movement to a position and for allowing movement of the slider to a block position when the key cylinder is at the ACC position and the slider is at the release position. . 2. The steering lock device according to claim 1, wherein the stopper is formed integrally with the latch member and is urged by an elastic member. 3. Only when the brake pedal is depressed,
The steering lock device according to claim 1, wherein the slider can be moved from the block position to the release position. The movement restricting means includes a latch member disposed in the hole of the key cylinder or the rotating member, and an elastic member for urging the latch member toward the outside of the hole of the key cylinder or the rotating member. The latch member has a radial surface forming substantially the same plane as the stopper surface, and an inclined surface provided on the back side of the radial surface, the key cylinder is at the ACC position and the slider is at the block position. When the slider comes into contact with the radial surface of the latch member to prevent the slider from moving to the release position, when the key cylinder is at the ACC position and the slider is moved from the release position to the block position, the slider moves to the latch member. 2. The steering lock device according to claim 1, wherein the latch member moves radially inward against the elasticity of the elastic member by contacting the inclined surface, and the slider can be moved to the block position. 5. The one-way movement restricting means comprises a stopper elastically supported by a slider, and an additional stopper provided on a key cylinder or a rotating member, wherein the additional stopper is provided on the stopper. It has a radial surface that forms substantially the same plane as the first stopper surface, and an inclined surface provided on the back side of the radial surface, and when the key cylinder is at the ACC position and the slider is at the block position, The stop abuts the radial direction of the additional stopper to prevent the slider from moving to the release position, and when the key cylinder is in the ACC position and the slider is moved from the release position to the block position, the stop of the slider is 2. The steering lock device according to claim 1, wherein the lock member can move over the inclined surface of the additional stopper elastically to the block position. 6. The steering lock device according to claim 5, wherein the stop has a pin supported in the hole of the slider and an elastic member for urging the pin toward the outside of the hole of the slider.