JPH0731472Y2 - Door lock switch - Google Patents

Description

[Detailed description of the device]

[The purpose of the device]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock switch used in an automatic door lock device that automatically locks or unlocks a door opening / closing device of a vehicle door, for example. (Prior Art) Conventionally, as the door lock switch, for example, there is one shown in FIG. That is, the illustrated door lock switch 100 supports the arc-shaped fixed-side contacts 101 and 102 by the casing 103, and always contacts one of the arc-shaped fixed-side contacts 101 and 102, The movable side contact 104 that contacts or separates from the other arc-shaped fixed side contact 102
Is attached to a movable arm 106, and the movable arm 106 is fixed to a main shaft 105 rotatably supported by a casing 103. Further, an input member 107 is fixed to the main shaft 105 outside the casing 103, and the input member 107 is configured to rotate integrally between the main shaft 105 and the movable arm 106 between positions. Here, the input member 107 is made to interlock with the door lock 52 attached to the door 51 via the rod 50 not shown, and the door switch 53 attached to the door 51 is interlocked with the input member 107. is there. Further, since the door opening / closing device 55 (similar to the driver seat door opening / closing device 53) attached to a door 54 different from the door 51 (for example, a passenger seat door or a rear seat door), the door opening / closing device The arc-shaped fixed side contacts 101 and 102 are connected to a drive terminal 56a of a door lock actuator 56 that interlocks the device 53 with each other via a power source. Therefore, the input member 107 is in the position, the movable side contact 104 is in contact with the one arc-shaped fixed side contact 101 and is separated from the other arc-shaped fixed side contact 102, and When the lock knob 52 is pushed downward in the drawing, the input member 107 is interlocked via the rod 50,
Rotate from position to position. When the input member 107 rotates from position to position, the movable arm 106 rotates clockwise together with the main shaft 105, so that the movable side contact 104 moves while keeping contact with one arcuate fixed side contact 101. This arc-shaped fixed-side contact 102 is started from the state where it is separated from the other arc-shaped fixed-side contact 102.
As a result, the one arc-shaped fixed side contact 101 and the other arc-shaped fixed side contact 102 are brought into conduction. As a result, the door lock actuator 56 connected to the drive terminal 56a is driven via the power supply, and the door lock actuator 56 works in conjunction with the door switch 55 attached to the door 54 different from the door 51. Since the striker (not shown) is locked by the latch 55a provided in the container 55, the other door 54 is locked. Further, when the input member 107 reaches the position from position to position, since the door switch 53 is interlocked by the input member 107, the striker 57a attached to the vehicle body 57 should be locked by the latch 53a provided in the door switch 53. Then, lock the door 51. (Problems to be solved by the invention) However, in the above-described conventional door lock switch 100, when the door 51 (54) is in the locked state, the input member 107, the main shaft 105, and the movable arm 106 are kept in that position. Since there is no means to hold it, for example,
It cannot be said that the input member 107 or the rod 50 or the like cannot be operated from the outside, so that the input member 10 can be operated.
When 7 is rotated back from position to position, the movable side contact 104 is out of the conduction range of the other arcuate fixed side contact 102, so that both arcuate fixed side contacts 101, 102 are in the cutoff state. As a result, the door lock actuator 56 is interlocked with the return side, so that the door switch 55 of another door 54 is changed from the locked state to the unlocked state. Further, since the input member 107 is returned from the position to the position and rotated to change the door switch 53 of the door 51 from the locked state to the unlocked state, the respective doors 51 and 54 are brought into the unlocked state. However, there is a problem that it is unsatisfactory in terms of security, and it has been an issue to solve this problem. (Object of the Invention) Therefore, the present invention has been made in view of the above-mentioned conventional problems, and it is possible to hold the door in a locked state, so that the door lock switch is excellent in terms of security. Is intended to provide.

[Constitution of device]

(Means for Solving the Problems) A door lock switch according to the present invention is a movable arm provided with a main shaft for interlocking a door opening / closing device and a movable side contact fixed to the main shaft and contacting or separating from a fixed side contact. A door lock switch equipped with a worm provided on the motor shaft and having a predetermined play between the movable arm and a deadlock drive motor in which the motor shaft is rotated by a deadlock signal. A main shaft restraining / releasing member, which has a contacting portion that contacts the arm and a tooth portion that meshes with the worm, and that restrains or cancels the restraint of the spindle when the motor shaft rotates in response to the deadlock signal. The structure of the door lock switch described above is characterized by a deadlock mechanism having It is the means. According to the door lock switch of the present invention, the deadlock mechanism is provided on the motor shaft of the deadlock drive motor when the motor shaft of the deadlock drive motor is rotated by the deadlock signal. With the worm meshing with the teeth provided on the spindle restraint / release member, the contact part provided on the spindle restraint / release member comes into contact with the movable arm after a certain amount of play and restrains the spindle at a predetermined position. Since the restraint or the restraint is released, in the restrained state, the spindle cannot be actuated from the outside. (Embodiment) Hereinafter, a door lock switch according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. That is, in the illustrated door lock switch 1, the main shaft 3 rotatably supported by the casing 2 interlocks with a door switch 53 similar to that shown in FIG. The arm 4 is constantly in contact with one of the arc-shaped fixed contacts 5 and 6 supported by the casing 2 and is in contact with the other arc-shaped fixed contact 6. Alternatively, a movable side contact 7 that is separated is attached. In addition, a deadlock drive motor 8 that is a direct-current motor that rotates forward and reverse is fixed to the casing 2, and
The worm 9 is press-fitted and fixed to the motor shaft 8a, and the motor shaft 8a of the deadlock drive motor 8 is rotated to the positive side or the reverse side by, for example, a deadlock signal input by switching a key switch (not shown). It is supposed to do. The main shaft restraining / releasing member 10 which has a predetermined play with the movable arm 4 is attached to the movable arm 4
Abutment portion 10a that abuts on the teeth and a tooth portion 10b that meshes with the worm 9
And are provided. Further, the spindle restraining / releasing member 10 is adapted to restrain the spindle 3 at a predetermined position or release the restraint when the motor shaft 8a of the deadlock driving motor 8 is rotated by the deadlock signal. The deadlock driving motor 8 and the spindle restraining / releasing member 10 constitute a deadlock mechanism 11. Here, the spindle restraining / releasing member 10 forming a part of the deadlock mechanism 11 is the second arm of the movable arm 4 fixed to the spindle 3.
An opening 10c having the same rotation center as the rotation center of the main shaft 3 is provided on the upper side in the drawing, and a ring-shaped base portion 10d is rotatably inserted. Further, on the outer peripheral side of the base portion 10d, there is provided a support portion 10e which projects from the base portion 10d in the outer peripheral direction of the main shaft 3 and has a rod shape,
The abutting portion 10a projects downward from the supporting portion 10e in FIG. 2 at the central portion of the supporting portion 10e, and abuts on the side edge 4a of the movable arm 4 in the vicinity of the turning end thereof. It is like this. Further, the tooth portion 10b has an arc shape with the opening 10c at the tip of the support portion 10e,
It engages with a worm 9 provided on the motor shaft 8a of the deadlock drive motor 8. On the other hand, an input member 12 is fixed to the main shaft 3 outside the casing 2, and the input member 12 is integrated with the movable arm 4 via the main shaft 3 between the positions shown in FIG. It is designed to rotate. The input member 12 is made to interlock with the door lock knob 52 via the rod 50 in the same manner as shown in FIG. 4, and the rotation of the input member 12 is similar to that shown in FIG. In the state where the door switch 53 is interlocked and the input member 12 is in the position, the movable side contact 7 attached to the movable arm 4 is in contact with one arcuate fixed side contact 5 and the other side. Arc-shaped fixed side contact 6
Are separated from each other. Therefore, from this state, when the door lock knob 52 is actuated to rotate the input member 12 from position to position, the movable arm 4 rotates clockwise, so that the movable arm 4 moves in the same manner as that shown in FIG. By the contact of the side contact 7 with both arc-shaped fixed contacts 5, 6, one of the arc-shaped fixed contacts 5 and the other of the arc-shaped fixed contacts 6 are brought into conduction, and the door lock actuator 56 is driven. At the same time, by interlocking the door opening / closing device 53, the doors 51 and 54 are locked. Therefore, by inputting a deadlock signal for rotating the motor shaft 8a to the positive side to the deadlock drive motor 8 by switching a key switch (not shown), the motor shaft 8a
The main shaft is restrained by the tooth portion 10b that meshes with the worm 9
Since the releasing member 10 rotates clockwise on the restraining side from position to position in FIG. 1, the contact portion 10a of the main spindle restraining / releasing member 10 comes into contact with the movable arm 4 at a position after a certain amount of play. Since the movable arm 4 is restrained by coming into contact with the side end portion 4a of the movable arm 4, the main shaft 3 fixed to the movable arm 4 is attached to the door 5
1,54 is restrained in the locked position. Then, in this state, for example, an input member from the outside
If you try to activate 12 or rod 50 etc., the arm
4, Since the main shaft 3 is restrained, they are prevented from operating at all. In this state, when the deadlock drive motor 8 is switched to the deadlock signal for rotating the motor shaft 8a in the opposite direction by switching the key switch, the spindle restraining / releasing member 10 is operated in the same manner as described above. Rotates counterclockwise from position to position on the release side.
The releasing member 10 returns when it comes into contact with the stopper 2a attached to the casing 2 at the position, and releases the restraint of the movable arm 4 and the main shaft 3.

[Effect of device]

As described above, the door lock switch according to the present invention has a predetermined play between the movable arm and the deadlock drive motor in which the motor shaft is provided with a worm and the motor shaft is rotated by the deadlock signal. And a tooth portion that is in contact with the movable arm and a tooth portion that meshes with the worm, and when the motor shaft is rotated by the deadlock signal, the main shaft is restrained at a predetermined position, or Since a deadlock mechanism having a spindle restraining / releasing member for releasing the restraint is provided, the movable arm, the spindle and the input member are restrained at predetermined positions when the door is in a locked state. When locked, the door cannot be locked or unlocked by external force at all, so the door is kept locked for safety. In which excellent effects that it is reliable in the face.

[Brief description of drawings]

1 is a partially cutaway plan view of a door lock switch according to an embodiment of the present invention, FIG. 2 is a vertical sectional side view of the door lock switch shown in FIG. 1, and FIG. 3 is a door shown in FIG. FIG. 4 is a partially cutaway plan view of the lock switch when the deadlock mechanism is in a restrained state, and FIG. 4 is a partially cutaway plan view of the conventional door lock switch. 1 ... Door lock switch, 3 ... Spindle, 4 ... Movable arm, 5, 6 ... Arc-shaped fixed side contact, 7 ... Movable side contact,
8: deadlock drive motor, 8a: motor shaft, 9
…… Worm, 10 …… Spindle restraint / release member, 10a …… Abutting part, 10b …… Tooth part, 11 …… Deadlock mechanism.

Claims (1)

[Scope of utility model registration request] 1. A door lock switch, comprising: a main shaft that interlocks a door switch; and a movable arm that is fixed to the main shaft and has a movable side contact that comes into contact with or separates from a fixed side contact. A worm is provided, and a deadlock driving motor, in which the motor shaft rotates in response to a deadlock signal, has a predetermined play between the movable arm and an abutting portion that comes into contact with the movable arm and the worm. A deadlock mechanism having a matching tooth portion and a spindle restraining / releasing member for restraining or canceling the restraint of the spindle at a predetermined position when the motor shaft is rotated by the deadlock signal. A door lock switch characterized by the above.