JPH0583423B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to steering locks, and more particularly to steering lock devices that can be operated with or without a key.

Prior Art A cylinder lock device that can be unlocked with or without a key is disclosed in Japanese Utility Model Application No. 57-68053.

This cylinder lock can be unlocked by normal operation with a key, and when the key is not used, the plunger drive device is activated to push the tumbler into the rotor with the pushing member of the tumbler. The door is unlocked using a knob.

Problems to be Solved The present invention has been made in view of the above-mentioned points, and includes a steering lock having a check lever that can be operated with or without a key, and an actuator for operating the check lever. This was devised to prevent the lock from breaking due to cutting of the electric wire connected to the actuator controller.

Means for Solving the Problems In order to achieve the above object, the present invention adopts a configuration in which a controller for the actuator is provided in the front (instrument side) of the frame.

Embodiments Below, embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a frame of a steering lock, and a cylinder case 2 is rotatably provided. A knob 3 for rotational operation protruding from the frame 1 is fixed to the front surface of the cylinder case 2 by a pin 3'. The rotor 4 is inside the cylinder case 2.
The tumbler 4a protruding into the groove 2a of the cylinder case 2 is moved backward and rotated by inserting the key 5, as is known in the art, to perform the unlocking operation. An operating rod 7 for an ignition switch 6 is attached to the rear end of the rotor 4, and a cam 7a for a hanger 9 of a locking rod 8 is provided. The hanger 9 is constantly pressed downward by a spring 9'. The locking rod 8 operates integrally with the vertical movement of the hanger 9.

The frame 1 is provided with an electromagnetically actuated main actuator 10, and its main plunger 1
1 can freely approach and separate from the circumferential side of the cylinder case 2. In a check lever case 1' housed in a frame 1, a check lever 13 serving as a holding member for a locking rod 8 is swingably provided on the side of the cylinder case 2 with a movable pin 12 as a fulcrum. The key sensing part 13a can move forward and backward into the rotor 4 through the holes 2b and 4b of the cylinder case 2 and the rotor 4, and the other locking part 13b can be freely engaged with and disengaged from the engagement part 8a of the locking rod 8. The check lever 13 is constantly biased by a coil spring 14 in a direction in which the key sensing portion 13a enters the rotor 4. Coil spring 14 is cover 1
4'. The check lever 13 extends through the movement allowing space 11a of the plunger 11, and is disposed so as to come into contact with the driving stepped portion 11b.

A sub-actuator 15 is provided in front of the main actuator 10, and a sub-plunger 17 that is attracted against a spring 16 when energized is arranged in a direction intersecting the main plunger 11. The main plunger 11 is provided with a flange-shaped stopper 18, the sub-plunger 17 is provided with a stopper plate 19 that engages with the stopper 18, and the stopper plate 19 is provided with a stopper of the main plunger 11. A notch 19a is formed to allow passage of 18. Further, the frame 1 housing the controller 21 is provided on a column 27 that rotatably supports a handle 26 (see FIG. 9).

In the above configuration, the buttons 20 are pressed in the order preset on the keyboard 20 from the state shown in FIG.
a, 20b, 20c... and when the number matches the stored number, the controller 21 issues a matching signal and energizes the sub-actuator 15, thereby suctioning the sub-plunger 17 against the spring 16. As a result, the stopper plate 19 is moved back from the locus of movement of the stopper 18 so that the stopper 18 passes through the notch 19a, and this state is maintained for a certain period of time.

During this time, the controller 21 outputs a signal for energizing the main actuator 10 for a certain period of time.
When the main actuator 10 is energized, the main plunger 11 moves backward while driving the check lever 13, and is held by a magnet built into the main actuator 10. and,
When the signal output from the controller 21 to energize the sub-actuator 15 is cut off after a certain period of time, the sub-plunger 17 is returned to its original position by the spring 16, and the stopper plate 19 is also returned to its original position. , and hold the main plunger 11 in the unlocked position.

When the main plunger 11 is retracted, the driving stepped portion 11b moves the check lever 13 against the coil spring 14, thereby disengaging the key sensing portion 13a from the cylinder case 2 and locking rod 8 attached to the locking portion 13b. It comes into contact with the connector and becomes ready for engagement.

In this state, when the cylinder case 2 is rotated via the knob 3, the tumbler 4 inside the cylinder lock
a is engaged with the groove 2a, the rotor 4 also rotates, and the ignition switch 6 is switched from the ACC position to the ON or START position, and the locking rod 8 is connected to the steering shaft (not shown) via the cam 7a. At this time, the locking part 13b of the check lever 13 engages with the engaging part 8a of the locking rod 8, and a lock signal is sent from the controller 21 to the actuator 10 while the car is stopped. Hold this position until

Next, for the locking operation, turn the knob 3 to the LOCK position and press a predetermined button from the keyboard 20, which sends a signal to the controller 21, which receives the signal from the vehicle speed sensor 22 when the car has stopped. After detecting the LOCK position by the lock position detection terminal 23 provided on the ignition switch 6, the sub actuator 15 is energized, and then the main actuator 10 is energized. As a result, the stopper plate 19 is attached to the main plunger 11.
The main plunger 11 returns to its original position close to the cylinder case 2, and the check lever 13
At the same time, when the key sensing part 13a returns to the position where it passes through the cylinder case 2 and engages in the rotor 4, the locking part 13b is released from the locking rod 8, and the locking rod 8 is lowered by the spring 9', and the steering shaft is closed. Move to the position where it will be locked. Since the cylinder case 2 is prevented from rotating due to the engagement of the key sensing portion 13a, the knob 3 cannot be rotated. In addition, the CPU 2 installed in the controller 21
P with a preset unlock number memorized in 1a.
- Connect the ROM 21b, the interface 21C, the power supply circuit 21d, and the output circuit 21e that receives the output from the CPU 21a, and further connect the locking relay 27 and the unlocking relay between the output circuit 21e and the main actuator 10. Connect relay 27'. Further, a relay 28 is connected between this output circuit 21 and the subactuator 15.

The controller 21 is located at the front (9th
(see figure) and is sealed with a cover 24. Therefore, in the case of FIG. 6, the electric wire 25 between the controller 21 and the main actuator 10 is protected.

Effects As described above, in the present invention, since the controller for the actuator is provided in the front of the frame (on the instrument 29 side), unauthorized unlocking by cutting the electric wire is reliably prevented. In addition, by setting the controller at the front of the vehicle, it will crawl into the instrument panel, making external attacks impossible. Furthermore, by setting the controller at the front, the center of gravity of the steering lock is closer to the column mount, which has the advantage of producing a good effect on steering vibration damping.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a steering lock device according to an embodiment of the present invention, and FIG.
3 is a front view of the actuator portion, FIG. 4 is a partially cutaway side view of the actuator portion, and FIG. 5 is a perspective view of the actuator portion.
Fig. 6 is a perspective view of the actuator control unit, Fig. 7 is a logic circuit diagram for actuator control, Fig. 8 is a block diagram of the control circuit, and Fig. 9 is a state in which the present invention is installed in a vehicle. FIG. 1...Frame, 2...Cylinder case, 5...
...Key, 10...Main actuator, 13
...Check lever, 15...Sub actuator, 19...Stopper plate, 21...Controller.

Claims (1)

[Claims] 1. A frame of the steering lock, and an actuator inside the frame that operates when locking/unlocking the steering lock.
A steering lock device comprising: a locking/unlocking member that is permitted to be locked/unlocked by the actuator; and a controller for controlling the actuator, the controller being located at the front within a frame.