JPH078748Y2 - Vehicle steering lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a vehicle steering lock device in which a steering shaft of a steering wheel is non-rotatably locked by a cylinder lock that operates an electric switch of an automobile engine. Is.

(Prior Art) In a vehicle steering lock device in which a steering shaft of a steering wheel is non-rotatably locked by a cylinder lock, a driver may erroneously operate a key and the steering wheel may be accidentally locked during traveling. There is a need to prevent this from happening. Conventionally, as a mechanism that satisfies this demand, it is not rotated to a locked position only by a rotation operation that does not involve a key pushing operation, and even if the pushing operation is performed, it is detected that the vehicle is in a traveling state, Further, a solenoid is provided which is activated when the pushing operation of the cylinder lock rotor at the ACC position is detected, and the blocking member interlocking with the solenoid is engaged with the cylinder lock rotor to prevent the cylinder lock rotor from rotating to the lock position. A mechanism for doing so is known.

The present invention relates to a pushing operation detecting means for a cylinder lock rotor among the above mechanisms. The detection of the pushing operation of the cylinder lock rotor must be performed reliably and promptly for the above-mentioned reason. For this purpose, the cylinder lock rotor itself should be directly pressed by the operating portion of the switch connected to the solenoid drive circuit. Is desirable.

(Problems to be solved by the invention) However, as a practical problem, since there is no space for incorporating the above-mentioned switch main body inside the vehicle steering lock device, the switch main body is inserted outside the device. There must be. Therefore, the operating portion of the switch and the cylinder lock rotor are located apart from each other, and it is necessary to intervene some intermediate member for the switch operation in the above mechanism. Generally, it is difficult to perform the switch operation reliably and promptly through such an intermediate member, but in the steering lock device, the certainty and speediness of the switch operation are an absolute condition, so The device is requested from.

(Means for Solving the Problems) In view of the above-described problems of the prior art, the present invention provides a mechanism capable of reliably and promptly detecting a pushing operation of a cylinder lock rotor in a vehicle steering lock device. It is an object of the present invention to provide a rocking piece that comes into contact with and separates from an operator of a switch, and is rotatably supported by a base body of the switch, the tip of the rocking piece being a cylinder lock rotor. Is engaged with a cam surface extending in the circumferential direction on the outer periphery of the rocking piece, the rocking piece is normally pressed against the cam surface to press the actuator of the switch, and the cam is pressed when the cylinder lock rotor is pushed. The surface of the cam surface other than the ACC position is formed at a position closer to the tip of the rocking piece with respect to the surface at the ACC position while being disengaged from the switch actuator. With the That.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a switch unit mounted on a vehicle steering lock device according to the present invention, FIG. 2 is an exploded perspective view showing a mounting state of the switch unit, and FIG. 3 is an inside of the vehicle steering lock device. A mechanical view, FIG. 4 is an enlarged view around a cam surface, and FIG. 5 is a front view of a vehicle steering lock device according to the present invention.

As shown in FIG. 1, the switch unit 1 has a switch 2
And a base 3 that supports the switch 2. An actuator 4 for actuating the switch 2 is slidably provided on the side surface of the base body 3, and the actuator 4 is always biased by a spring while protruding outward. One end of the swinging piece 5 formed in a substantially L-shape has a shaft body 6 for supporting the base body 3
It is rotatably supported by a shaft, and a substantially central portion of the swinging piece 5 is brought into contact with the tip of the operator 4. still,
A locking piece 7 is projected from the pivotal end 5a of the rocking piece 5, and by locking the locking piece 7 to the base body 3, the rocking piece 5 is rotated clockwise in FIG. The rotation is blocked.
Further, the pressing portion 5b on the other end side of the swinging piece 5 is provided so as to extend in a direction substantially perpendicular to the base body 3, and by pressing the pressing portion 5b, the actuator 4 of the switch 2 is moved. When pressed, the switch 2 is turned off. Further, the switch 2 is configured to be turned on when the operator 4 is in a protruding state. Further, the base body 3 is formed with an insertion hole 8 for mounting in a case 9 of a steering lock device described later.

On the other hand, as shown in FIG. 2, a mounting portion 10 for mounting the above-described switch unit 1 is formed outside the case 9 of the steering lock device. The mounting portion 10 has a convex portion 11 for inserting the switch unit 1 into the insertion hole 8 formed in the base body 3 when the switch unit 1 is mounted,
An insertion hole 12 for inserting the pressing portion 5b of the swinging piece 5 pivotally supported by the base body 3 into the case 9 is formed. A screw groove (not shown) is cut inside the convex portion 11, and the switch unit 1 is fixed to the mounting portion 10 of the case 9 with a screw 15.

As shown in FIGS. 3 and 4, the pressing portion 5b of the rocking piece 5 inserted from the insertion hole 12 is provided on the outer periphery of the cylinder lock rotor 13 which is incorporated in the case 9 and can be pressed only at the ACC position I. It is adapted to engage with the cam surface 14 extending in the circumferential direction.
Further, the cylinder lock rotor 13 has an outer cylinder 2 at the ACC position I.
Engagement protrusion 20 capable of engaging with a protruding cam 22 provided on the rear end surface of
Is provided, and the cylinder lock rotor 13 is not rotated to the lock position only by the rotation operation, and the push operation is involved. Further, the cylinder lock rotor 13 has
The return spring force acts on the pushing. When the cylinder lock rotor 13 is in the normal position, the pressing portion 5b of the swinging piece 5 is pressed against the cam surface 14 of the cylinder lock rotor 13, and at this time, the switch 2 is in the off state (the first position). See FIG. 3 (a). When the cylinder lock rotor 13 is pushed in, the engagement between the cam surface 14 of the cylinder lock rotor 13 and the pressing portion 5b of the swinging piece 5 is released, and the switch 2 is turned on at this time. (See FIG. 3 (b)). At the position corresponding to the ACC position on the cam surface 14 formed on the cylinder lock rotor 13, a recess 14a is formed rearward in the axial direction of the cylinder lock rotor 13, and at the ACC position I The pressing of the pressing portion 5b is performed by the bottom surface of the recess 14a. Therefore, since the pressing position III of the pressing portion 5b at the ACC position I can be set close to the ON position IV of the switch 2, the cam surface 14 and the cam surface 14 can be pressed against the pressing of the cylinder lock rotor 13 at the ACC position I. The engagement with the pressing portion 5b is promptly released, and the switch 2 can be turned on in a short time. Further, since the pressing position V of the pressing portion 5b at a position other than the ACC position I can be set away from the ON position IV of the switch 2, even if the cylinder lock rotor 13 has some axial rattling, At positions other than the position I, the pressing portion 5b and the cam surface are not disengaged and the switch 2 is not turned on.

Next, as shown in FIG. 5, the solenoid 16 attached near the case 9 of the steering lock device detects that the switch 2 is turned on by the pushing operation of the cylinder lock rotor 13 and the traveling state is detected. When a sensor (not shown) is activated, it is excited, and the plunger 17 is attracted by the excitation of the solenoid 16. A locking portion 19a at the other end of a lever 19 which is connected to the plunger 17 at one end and is pivotally supported by a shaft 18 is rotated to a lock position II after the cylinder lock rotor 13 is pushed in at the ACC position I. At the time of operation, the cylinder lock rotor 13 is engaged with an engagement protrusion 20 provided so as to project to prevent the cylinder lock rotor 13 from rotating to the lock position II.

Next, the operation of this embodiment will be described.

When the cylinder lock rotor 13 is pushed in at the ACC position I in order to rotate to the lock position during traveling,
The bottom surface of the recess 14a formed on the cam surface 14 and the pressing portion 5b of the rocking piece 5 are disengaged, and the switch 2 is turned on.
As a result, the solenoid 16 is excited to attract the plunger 17, and the locking portion 19 of the lever 19 connected to the plunger 17
a moves to the rotation blocking position of the cylinder lock rotor 13. As a result, the locking portion 19a of the lever 19 and the cylinder lock rotor 13
Engages with the engagement protrusion 20 of the cylinder lock rotor 13 to prevent the cylinder lock rotor 13 from rotating to the lock position II.

(Effect of the Invention) As described above, the present invention rotatably pivotally supports the rocking piece that comes into contact with and separates from the switch actuator to the base of the switch, and the tip of the rocking piece is the outer circumference of the cylinder lock rotor. Since it is adapted to engage with the cam surface extended in the circumferential direction,
The switch can be operated by releasing the engagement of the cylinder lock rotor by pushing the cylinder lock rotor. Therefore, when the switch is mounted on the outside of the steering lock device, it is possible to reliably detect the pushing operation of the cylinder lock in the device by the switch.

Further, since the swinging piece is disengaged from the cam surface when the cylinder lock rotor is pushed, the swinging piece is separated from the operator of the switch. Therefore, when the switch is incorporated in the steering lock device as described above. , The pushing force of the cylinder lock rotor is not directly applied to the actuator of the switch, only the return spring force for pushing the cylinder lock rotor is added, and therefore the load applied to the actuator of the switch is Since it is always constant,
There is an effect that the durability of the switch actuator is good.

Further, since the surface of the cam surface other than the ACC position is formed at a position closer to the tip of the rocking piece with respect to the surface at the ACC position, the tip of the rocking piece and the cam surface at the ACC position are formed. Since the engagement position can be set close to the on position of the switch, there is an excellent effect that the switch is quickly turned on when the cylinder lock rotor is pushed in at the ACC position.

[Brief description of drawings]

FIG. 1 is a perspective view showing a switch unit mounted on a vehicle steering lock device according to the present invention, FIG. 2 is an exploded perspective view showing a mounting state of the switch unit, and FIG. 3 is an inside of the vehicle steering lock device. A mechanical view, FIG. 4 is an enlarged view around a cam surface, and FIG. 5 is a front view of a vehicle steering lock device according to the present invention. 1 ... Switch unit, 2 ... Switch 3 ... Substrate, 4 ... Operator 5 ... Swing piece, 5b ... Pressing part 9 ... Case, 10 ... Mounting part 12 ... Insertion hole 13 ... Cylinder lock rotor, 14 ... Cam surface 14a ... Recess

Claims (2)

[Scope of utility model registration request] 1. A steering lock device for a vehicle, comprising a switch for detecting a pushing operation only at an ACC position, in which a rocking piece that comes into contact with and separates from an operator of the switch is pivotally mounted on a base of the switch. And the tip of the rocking piece engages with a cam surface extending in the circumferential direction on the outer circumference of the cylinder lock rotor,
Normally, the rocking piece is pressed against the cam surface to press the operator of the switch, and when the cylinder lock rotor is pushed, the swing piece is disengaged from the cam surface and separated from the operator of the switch. A steering lock device for a vehicle, which is characterized in that 2. A steering lock device for a vehicle according to claim 1, wherein a surface of the cam surface other than the ACC position is formed at a position closer to the tip of the swing piece with respect to the surface at the ACC position.