JPH0613283B2 - Steering lock device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a steering lock device that can be operated together with or without a key.

[Conventional technology]

For the steering lock, after unlocking once, the unlocked state is held at the start, on, and accessory positions, and in order to make the lock work when the key is finally pulled out, it responds to the removal and insertion of the key. It is necessary to provide a check lever to do so. (For example, see Japanese Patent Publication No. 49-18054) [Means for Solving Problems] When a check lever is provided, an operating member for locking and unlocking the check lever and a main actuator for driving the operating member Will also be provided.

In this case, the main actuator can be unlocked easily by energizing it, so it is conceivable to provide a stopper member for preventing movement of the operating member and a sub-actuator for driving the stopper member.

When providing the main actuator and the sub-actuator in this way, first operate the sub-actuator to remove the stopper member from the operating member, and then operate the main actuator to lock / unlock the check lever by the operating member. However, if the main actuator is energized before the sub-actuator is operated for some reason, the movement of the operating member is blocked by the stopper member, resulting in a waste of the operating member.

Further, if the main actuator operates before the sub-actuator completely operates, a problem that causes a failure occurs.

An object of the present invention is to provide a steering lock device that includes a check lever, a main actuator, and a sub-actuator, and that operates the main actuator when the operation of the sub-actuator is completed.

[Means for solving problems]

In order to achieve the above object, the present invention comprises a check lever 7 that responds to the insertion and removal of a key and that prevents the steering lock knob 3 from rotating, and an operation member (plunger) 13 that locks and unlocks the check lever 7. A main actuator 11 for driving, a stopper member 14 for preventing movement of the operating member 13, a sub-actuator 12 for driving the stopper member 14, and a controller 2 for controlling the main actuator 11 and the sub-actuator 12 are provided. The main actuator 1 is moved to the control device 2 when the stopper member 14 is moved by the sub-actuator 12 and the movement prevention by the stopper member 14 is released.
It is characterized in that it is equipped with a confirmation circuit (trigger detection circuit) 19 for operating 1.

In addition, preferably, the sub-actuator 12 is a monostable solenoid, and the confirmation circuit 19 is a trigger detection circuit that detects a temporary decrease in the current flowing through the monostable solenoid.

[Work]

At the time of unlocking, the sub-actuator 12 is first operated by the control device 2 to remove the stopper member 14 from the operation member 13. At this time, the confirmation circuit 19 confirms the operation. Then, the main actuator 11 is operated by the control device 2 to move the operation member 13, and the check lever 7 is rotated in the unlocking direction. When the operation of the main actuator 11 is completed, the operation of the sub-actuator 12 is stopped by the control device 2 after a predetermined time elapses, and the stopper member 14 blocks the movement of the operation member 13 and holds the unlocked state.

When locking, the sub-actuator 12 is first operated by the control device 2 to move the stopper member 14 to the operating member 1.
Remove from 3. Also at this time, after confirming the operation by the confirmation circuit 19, the main actuator 11 is operated to move the operation member 13 and rotate the check lever 7 in the lock direction. When the operation of the main actuator 11 is completed, the operation of the sub-actuator 12 is stopped by the control device 2 after a lapse of a predetermined time, and the stopper member 14 blocks the movement of the operation member 13 and holds the locked state.

〔Example〕

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

1 and 2 show an example of the steering lock device of the present invention. In the figure, reference numeral 1 is a steering lock,
A control device 2 that controls locking and unlocking of the steering lock knob 3 is integrally incorporated.

A cylinder case 5 having a steering lock knob 3 at one end is rotatably mounted in a frame 4 of the steering lock 1, and a rotor 6 which is rotatably operated by a key is mounted in the cylinder case 5. .

A check lever 7 that swings in response to the insertion / removal of a key is provided on the side of the frame 4. The check lever 7 has an intermediate portion swingably attached to the frame 4 via a pin 8, an engaging portion 7a for holding the locking rod 9 provided at one end, and a cylinder case 5 at the other end.
A key sensing portion 7b which faces the inside of the rotor 6 through the hole 5a of the rotor and the hole 6a of the rotor 6 is provided. The key sensing portion 7b is biased toward the rotor 6 by the spring 10.

The main actuator 1 is provided on the side of the frame 5.
1 and the sub-actuator 12 are equipped.

The main actuator 11 is composed of a bistable solenoid, and is formed in an L shape so that one end portion 13a of the plunger 13 thereof engages with the check lever 7 (third part).
(See FIGS. A, b and FIG. 4). A flange portion 13b is provided at an intermediate portion of the plunger 13.

The Zab actuator 12 is a monostable solenoid,
The main actuator 11 is provided on the side where the plunger 13 appears and disappears. The plunger 12a of the sub-actuator is provided with a stopper member 14 that engages with the flange portion 13b of the plunger 13 of the main actuator 11 and prevents the movement of the plunger 13.
As shown in FIGS. 3b and 4, the stopper member 14 is formed with a V-shaped notch 14a that engages with the flange 13b.

FIG. 5 shows a circuit of the control device 2. The control device 2 controls the energization time to the main actuator 11 and the sub-actuator 12 to control locking and unlocking of the steering lock knob 3, and includes a timer circuit 15, relay circuits 16, 17, 18 and a trigger detection circuit 19. It consists of In the figure, 20 is a power source.

The timer circuit 15 controls the energization time to the relay circuits 16, 17 and 18, and controls the energization time as shown in FIG. 6 when unlocked and as shown in FIG. 7 when locked.

The trigger detection circuit 19 detects that the current flowing in the coil is temporarily reduced by the back electromotive force as shown in FIG. 8 when the plunger suction operation of the sub-actuator 12 is reliably performed. Sub actuator 12
When a temporary decrease in the current flowing through the coil is detected, this detection signal is output to the timer circuit 15.

The timer circuit 15 starts energization of the relays 17 and 18 with the detection signal from the trigger circuit 19. For example, when unlocked, even if t _{1 has} elapsed from the start of energization of the relay circuit 16, the timer circuit 15 outputs a signal from the trigger circuit 19. The relay circuit 17 is not energized unless there is a detection signal, and the relay circuit 18 is not energized when there is a detection signal from the trigger circuit 19 even when t ₁ ′ has elapsed from the start of energization of the relay circuit 16 when locked.

Therefore, it is possible to prevent the main actuator 11 from being energized when the sub-actuator 12 does not operate or before it completely operates.

Next, the operation of the above device will be described.

When the key sensing unit 7b of the check lever 7 is engaged in the rotor 6 by the step elastic force of the spring 10 to lock the steering lock knob 3, for example, if the signal input by key input matches the code, the control device 2, the relay circuit 16 is energized to switch the contact 16a and operate the sub-actuator 12. As a result, the stopper member 14 is retracted in the arrow direction shown in FIG. 4 against the elastic force of the spring 21 (see FIG. 4),
The movement restriction of the collar portion 13b is released.

At this time, the plunger 12 of the sub-actuator 12
The trigger detection circuit 19 detects whether or not the suction operation of "a" is reliably performed, and when the plunger suction operation of the sub-actuator 12 is reliably performed, that is, the movement of the flange portion 13b by the stopper member 14 is completely regulated. When released, the relay circuit 17 is energized to switch the contact 17a and operate the main actuator 11.

When the main actuator 11 operates, the plunger 13 is attracted (moves downward in FIG. 2), the check lever 7 is rotated, the key sensing portion 7b is disengaged from the rotor 6, and the engagement portion 7a is locked. The rod 9 is brought into pressure contact with and brought into an engageable state. At this time, the plunger 13 is attracted and held by a permanent magnet (not shown) in the main actuator 11. After that, the operation of the main actuator 11 is stopped.

Then, after a predetermined time (t ₃ hours) has passed, the relay circuit 16 is de-energized, the stopper member 14 is returned to the movement restricting position of the plunger 13 by the spring 21, and is engaged with the flange portion 13b. As a result, the unlocked state of the steering lock knob 3 is maintained.

In this unlocked state, the steering lock knob 3
When is operated to rotate, the rotor 6 rotates.

When locking the steering lock knob 3, the steering lock knob 3 is rotated to the lock position and a signal is input by, for example, key input. When the input signal matches the code, the vehicle speed sensor (not shown) confirms the stopped state, and after confirming that the ignition switch (not shown) is in the lock position, the control device 2 operates,
First, the relay circuit 16 is energized to switch the contact 16a to operate the sub-actuator 12.

When the sub-actuator 12 operates, the stopper member 1
4 is retracted in the direction of the arrow shown in FIG. 4 against the elastic force of the spring 21 (see FIG. 4), and the movement restriction of the collar portion 13b is released.

Also at this time, the plunger 1 of the sub-actuator 12
The trigger detection circuit 19 detects whether or not the suction operation of 2a is reliably performed, and when the plunger suction operation of the sub-actuator 12 is reliably performed, that is, the movement of the collar portion 13b by the stopper member 14 is completely regulated. When released, the relay circuit 18 is energized, the contact 18a is switched, and the main actuator 11 operates. At this time, the coil of the main actuator 11 is energized in the opposite direction to the previous one.

When the main actuator 11 operates, the plunger 13 is pushed out (moves upward in FIG. 2), the check lever 7 is rotated by the elastic force of the spring 10, and the key sensing portion 7b is engaged in the rotor 6. On the other hand, the engaging portion 7a is disengaged from the locking rod 9, and the steering lock knob 3 is locked.

Then, when a predetermined time (t ₃ ′) has elapsed, the relay circuit 1
The electricity to 6 is cut off, the stopper member 14 is returned to the movement restricting position of the plunger 13 by the spring 21, and is engaged with the flange portion 13b. As a result, the locked state of the steering lock knob 3 is maintained.

When the key is used, it is the same as the conventional one, and when the key is inserted into the rotor 6 and rotated, the key sensing unit 7b is pushed out from the rotor 6 by the key and unlocked.

〔The invention's effect〕

As described above, according to the present invention, in the steering lock equipped with the tuck lever that responds to the insertion and removal of the key and that prevents the rotation of the steering wheel knob, the main actuator that operates the check lever, and the sub actuator, there is no problem. Unlock and lock operations are possible.

Further, if a trigger detection circuit that detects a temporary decrease in the current of the sub-actuator is used as the confirmation circuit of the control device, the circuit configuration is simple and there is no need to equip a special switch that detects the operation of the sub-actuator.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a perspective view showing the appearance, FIG. 2 is a sectional view, and FIG. 3a is III of FIG.
-III line sectional view, the same figure b is a front view of a stopper member, FIG. 4 is a perspective view of a main actuator and a sub-actuator part, FIG. 5 is a block diagram of a control device, 6th
FIG. 7 and FIG. 7 are time charts showing the energization time of the relay circuit, and FIG. 8 is an explanatory diagram of the coil current during operation of the sub-actuator. 2 ... Control device, 7 ... Check lever, 11 ... Main actuator, 12 ... Sub actuator, 13
...... Operating member (plunger), 14 ... Stopper member, 19 ... Confirmation circuit (trigger detection circuit)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shoji Akutsu 2-8-2 Kamata, Ota-ku, Tokyo Within Japan Metal Industry Co., Ltd. (56) Reference JP-A-60-157944 (JP, A) JP Sho 60-253676 (JP, A) JP-A 61-77546 (JP, A)

Claims (2)

[Claims] 1. A check lever that responds to key insertion / removal and prevents rotation of a steering lock knob, a main actuator that drives an operating member that locks and unlocks the check lever, and a movement of the operating member. A stopper member for blocking, a sub-actuator for driving the stopper member, a controller for controlling the main actuator and the sub-actuator are provided, and the stopper member is moved to the controller by the sub-actuator, A steering lock device comprising a confirmation circuit for operating the main actuator when the movement prevention of the operation member is released. 2. The sub-actuator is a monostable solenoid, and the confirmation circuit is a trigger detection circuit for detecting a temporary decrease in the current flowing through the coil of the monostable solenoid. Steering lock device according to claim 1.