JPH0574500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a steering lock, and more particularly to a steering lock device that can be locked and unlocked by manually operating a knob without using a key or 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 and the tumbler is pushed into the rotor by the pushing member of the tumbler. The door is unlocked using a knob.

Problem to be solved Regarding the steering lock, once the lock is released, the unlocked state is maintained in the start, on, accessory, and locked positions, and the lock is activated when the key is finally pulled out in the locked position. Although it is necessary to provide a check lever that responds to the withdrawal of the key, the above-mentioned prior art does not disclose a combination of such a check lever and the plunger of the actuator.

The present invention has been made in view of the above points, and provides a steering lock having a key or an actuator for operating a check lever so that it can be operated without a key.

Means for Solving the Problems In order to achieve the above object, the present invention provides a cylinder case rotatably within the frame of the steering lock, and a knob for rotational operation on the front surface of the cylinder case. A rotor that is rotatably operated by a key is provided in the cylinder case, and a check lever for holding the locking rod is swingably provided on the side of the cylinder case, and the key sensing part of the check lever is installed inside the rotor. A plunger driven by an actuator is provided, and the key sensing part of the check lever, which penetrates through the movement permissible space of the plunger, engages in the hole in the cylinder case when the lock is locked, preventing rotation of the cylinder case. The purpose is to prevent movement.

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 freely move forward and backward into the rotor 4 through a hole 2b formed in a part of the cylinder case 2 that is thicker than the part where the groove 2a is formed, and the rotor 4 hole 4b, and the other locking part 13
b can be freely engaged with and disengaged from the engaging portion 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. The coil spring 14 is fixed by a cover 14'. 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 step portion 11b. Further, by making the hole 2b of the cylinder case 2 formed above thick, strength can be imparted.

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.

In the above configuration, the keyboard 2 shown in FIG.
Press the 0 buttons 20a, 20b, 20c... according to the unlock number, and when the number matches the stored number, the controller 21 issues a match signal and the first
By operating the sub-actuator 15 shown in the figure, the sub-plunger 17 is attracted against the spring 16, whereby the stopper plate 19 retreats from the movement locus of the stopper 18 and the stopper 18 is moved into the notch. 19a, and maintain this state 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 in the unlocking direction, and is held by a magnet built into the main actuator 10. 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 returns to its original position by the spring 16, and the stopper plate 19 also returns to its original position. , and keep the main plunger 11 in the unlocked position.

When the main plunger 11 is retracted, the driving step portion 11b drives the check lever 13 against the coil spring 14 to move it from the X position to the Y position in FIG. 6, whereby the key sensing portion 13a is activated. When the locking portion 13b is removed from the cylinder case 2,
is brought into pressure contact with the locking rod 8 and becomes ready for engagement.

In this state, if you turn the cylinder case 2 by picking the knob 3 by hand without using the key, the tumbler 4a inside the cylinder lock remains engaged with the groove 2a, so the rotor 4 will also rotate at the same time. When the ignition switch 6 is switched from the ACC position to the ON to START position, the cam 7a fixed to the rotor 4 moves the locking rod 8. At this time, the locking portion 13b of the check lever 13 engages with the locking portion 8a of the locking rod 8. Therefore, while the vehicle is stopped, the lock rod 8 is held in the unlocked position until a lock signal is sent from the controller 21 to the actuator 10.

If a key is used, the key (not shown)
When inserted into the rotor 4, the key detecting portion 13a of the check lever 13 comes into contact with the key, and the check lever 13 is rotated in the direction of the locking rod 8, so the key is rotated in this state toward the START position. If so, the engaging portion 13 of this check lever 13
b engages into a notch (not shown) in the locking rod 8 to hold the locking rod 8 in the unlocked position.

Next, the locking operation when the key is not used is by rotating the knob 3 to the LOCK position and then pressing the locking button from the keyboard 20, which sends a signal to the controller 21, which controls the vehicle speed. After the sensor 22 detects that the vehicle is stopped, the lock position detection terminal 23 provided on the ignition switch 6
After detecting the LOCK position by (see FIG. 8), the sub actuator 15 is energized, and then the main actuator 10 is energized. As a result, the stopper plate 19 is removed from the movement locus of the collar-shaped stopper 18 of the main plunger 11, and the main plunger 11 is moved away from the cylinder case 18.
At the same time, the check lever 13 returns to the position where its key sensing portion 13a penetrates the cylinder case 2 and engages in the rotor 4, and at the same time the locking portion 13b is released from the locking rod 8 and locked. Rod 8 is lowered by spring 9',
Move to the position to lock the steering shaft. 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.

When unlocking with key 5, it is the same as before,
This is done by rotating the rotor 4 while moving the check lever 13 from the X position to the Z position in FIG. 6 via the key sensing portion 13a.

In addition, the CPU 21a provided in the controller 21
P- with a preset unlock number stored in it.
The ROM 21b, the interface 21c, the power supply circuit 21d, and the output circuit 21e that receives the output from the CPU 21a are connected, and a locking relay 27 and an unlocking relay are connected between the output circuit 21e and the main actuator 10. A relay 28 is connected between this output circuit 21e and the sub-actuator 15.

Effects As described above, the present invention includes a cylinder case rotatably provided within the frame of the steering lock, a knob for rotating the cylinder case, and a rotor rotatably operated by a key provided within the cylinder case. A check lever for holding the locking rod is rotatably provided on the side of the cylinder case, a spring is provided for urging the key sensing portion into the rotor, and a plunger is provided to be driven by an actuator. Since the check lever is provided penetrating through the space allowing movement of the plunger and drives the check lever when the plunger is driven by the actuator, the steering lock can be operated with or without a key. It has the feature that a check lever for holding the locking rod can be incorporated into the locking rod, and that the check lever for holding the locking rod can be operated without any trouble during both operations.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention;
Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is a front view of the actuator section, Fig. 4 is a partially cutaway side view of the actuator section, and Fig. 5 is a perspective view of the actuator section. Figure 6 is a cross-sectional view of the main parts showing the operating position of the check lever, Figure 7 is a cross-sectional view taken along the - line in Figure 1, Figure 8 is a rear view of the steering lock, and Figure 9 is a cross-sectional view of the actuator. An explanatory diagram of the control device, FIG. 10 is a logic circuit diagram for actuator control, and FIG. 11 is a block diagram of the control circuit. 1... Frame, 3... Knob, 10... Actuator, 11... Main plunger, 13
...Check lever, 15...Sub actuator, 17...Sub plunger, 21...Controller.

Claims (1)

[Claims] 1. A steering lock frame, a cylinder case fitted into the frame and having a knob formed on the front face and rotated by hand, a rotor fitted into the cylinder case and rotated by a key; A check lever is pivotally supported on the side of the cylinder case to hold the locking rod when the lock is unlocked and is pivotable; a spring that causes the key sensing part of the check lever to pass through the cylinder case and enter the rotor; and an actuator. a plunger driven by the yuator and engaged with the check lever;
A steering lock device characterized in that a key sensing portion of a check lever that passes through a space allowing movement of the plunger engages in a hole in a cylinder case when the lock is locked, thereby preventing rotation of the cylinder case.