JPH07117625A - Steering lock device - Google Patents

Abstract

PURPOSE:To provide a lock device of a cable type steering device by which miniaturization around a steering shaft and a steering wheel and the freedom of an installing position may not be disturbed. CONSTITUTION:A steering lock device 20 is provided with an engaging means (a lock plate 22) arranged integrally on a cable type steering force transmission body (a wire cable 16c) and a lock means (a key cylinder 24 provided with a locking pole 23) fixed on a carbody side for regulating the movement of the steering force transmission body by its engagement with an engaging means by a key operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering device for operating steering wheels of a vehicle.

[0002]

2. Description of the Related Art As one of vehicle steering devices,
There is a steering device (hereinafter referred to as a cable type steering device) in which a steering shaft and a steering mechanism are interlockingly connected via a cable-shaped steering force transmission body,
For example, JP-A-59-145662 and JP-A-4
No. 26868.

[0003]

By the way, it is necessary to provide some kind of lock device to the vehicle steering device to prevent theft, but the lock device used in the conventional steering shaft is the steering of the cable type steering device. When used for the shaft, the steering shaft and the steering wheel integrally attached to the steering shaft, which are advantages of the cable-type steering device, are reduced in size, and the degree of freedom of the mounting position is impaired.
The measures are desired. The present invention has been made to meet the above-described demands, and an object of the present invention is to provide a locking device for a cable-type steering device that does not reduce the size of the steering shaft and the steering wheel and the freedom of mounting position. It is in.

[0004]

In order to achieve the above-mentioned object, in the present invention, the locking device is provided with an engaging means integrally provided on a cable-shaped steering force transmitting body,
The locking means is fixed to the vehicle body side and engages with the engaging means by a key operation to restrict the movement of the steering force transmitting body.

[0005]

In the steering lock device according to the present invention, when the key is operated, the locking means fixed to the vehicle body engages with the engaging means provided on the steering force transmitting body, so that the steering force transmitting body operates. Movement is restricted. Therefore, the steering shaft and the steering wheel are prevented from rotating, and theft is prevented. By the way, the steering lock device according to the present invention is provided separately from the steering shaft and the steering wheel by providing the steering force transmitting body with the engaging means and correspondingly fixing the locking means to the vehicle body side. This contributes to downsizing around the steering shaft and steering wheel, and does not impair the degree of freedom in mounting the steering wheel.

[0006]

EXAMPLES The present invention will be described in detail below based on examples. The vehicle steering system shown in FIG. 1 is a part of a vehicle body (both not shown) that supports an instrument panel.
A pulley box 11 attached to the vehicle, a steering shaft 12 rotatably attached to a part of the vehicle body in the vicinity thereof, and a steering shaft 12 integrally rotatably connected to a pulley (not shown) in the pulley box 11, and the steering shaft A pulley box 11 is provided with a steering wheel 13 integrally fixed to the tip of the pulley 12.
Gearbox 14 attached to a part of the vehicle body in front of
And a pulley box 15. The pulley in the pulley box 11 and the pulley (not shown) in the pulley box 15 are interlockingly connected by a push-pull cable 16, and the pulley of the gear box 14 is rotated according to the rotation of the steering wheel 13. The arm 14a swings to steer the steered wheels 18 via the steering linkage 17. The push-pull cable 16 is inserted into the pair of outer tubes 16a and 16b arranged between the pulley boxes 11 and 15 and the outer tubes 16a and 16b to be inserted into the pulleys in the pulley boxes 11 and 15. It is composed of an endless wire cable 16c that is wound.

By the way, in the present embodiment, the steering lock device 20 according to the present invention is arranged at an intermediate portion of the push-pull cable 16. The steering lock device 20, as shown in detail in FIGS. 2 and 3,
A housing 21 fixed to a part of the vehicle body similar to the pulley box 11, a lock plate 22 fixed to one side of a wire cable 16c in the housing 21 and having a locking hole 22a at substantially the center, and the locking hole. The steering wheel 13 is provided with a locking pole 23 that can be fitted into the housing 22a, and is fixed to the housing 21 at a substantially central portion thereof. The poles 23 are matched. The key cylinder 24 is arranged on the instrument panel, and when a key (not shown) is inserted and operated to the lock position, the locking pole 23 is projected via a spring (not shown).
Further, when the key is operated to the unlock position, the key is retracted as shown in FIG.

In this embodiment constructed as described above, when the key is inserted into the key cylinder 24 and operated to the lock position, the locking pole 23 projects through the spring (not shown) and the locking hole 22a and the locking hole 22a. If the poles 23 match each other as shown in FIG. 2, the locking poles 23 are fitted into the locking holes 22a and locked as shown in FIG. 4, and the movement of the lock plate 22 and the wire cable 16c is restricted. To be done.
Therefore, the steering shaft 12 and the steering wheel 13 are prevented from rotating, and theft is prevented. If the locking hole 22a and the locking pole 23 do not match, the locking pole 2
3 cannot be engaged with the locking hole 20a, but the locking pole 23 is pressed against the lock plate 22 by the spring, so that when the steering wheel 13 is in the neutral position by the driver's operation, the locking pole 23 and the locking hole 20a are Engage and lock. Further, when the key is operated from the locked position to the unlocked position, the locking pole 23 retracts from the state of FIG. 4 to the state of FIG. 2, so the lock is released and the unlocked state is obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a vehicle steering system including a steering lock device according to the present invention.

FIG. 2 is a cross-sectional plan view of the steering lock device shown in FIG.

FIG. 3 is a front view showing the relationship between the lock plate and the wire cable shown in FIG.

FIG. 4 is a diagram showing a relationship of the lock plate, the locking pole, and the key cylinder shown in FIG. 2 in a locked state.

[Explanation of symbols]

11 ... Pulley box, 12 ... Steering shaft, 13 ... Steering wheel, 14 ... Gear box, 15 ... Pulley box, 16 ... Push pull cable, 16a, 16b ... Outer tube, 16c ... Wire cable, 17 ... Steering linkage, 18 ...
Steering wheels, 20 ... Steering lock device, 21 ... Housing, 22 ... Lock plate, 22a ... Rocking hole, 23 ... Rocking pole, 24 ... Key cylinder.

Claims (1)

[Claims] 1. A steering device in which a steering shaft and a steering device are interlockingly connected via a cable-shaped steering force transmission body, and an engagement means integrally provided on the cable-shaped steering force transmission body, A steering lock device, comprising: locking means that is fixed to a vehicle body side and that engages with the engaging means by a key operation to restrict movement of the steering force transmission body.