JPS581565Y2 - Automobile door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile door lock device that can be unlocked or locked by a solenoid.

Conventionally, various types of automobile door lock devices have been proposed that can be unlocked or locked using a solenoid, but all of them have a mechanism that operates a locking/unlocking member using the electromagnetic attraction force of a solenoid. Therefore, in order to operate the locking/unlocking member, a force exceeding the dead center of the overcenter spring acting on the locking/unlocking member is required, and therefore, the electromagnet of the solenoid is required to have an extremely large attractive force corresponding to that force. , and requires a large amount of power,
It has not been possible to make the solenoid smaller, and it has not been possible to find a way to sufficiently satisfy the need to accommodate the solenoid in a limited space.

This invention was made to eliminate the drawback of slanting.
DESCRIPTION OF THE PREFERRED EMBODIMENTS A relatively small-sized automobile door locking device capable of automatically unlocking or locking the door will be described below with reference to embodiment drawings.

In the figure, A is the door lock body, and B is a driving means such as a solenoid connected to an inertia switch (not shown) provided at an appropriate position on the vehicle body.

The inertia switch is activated when the vehicle body receives a sudden impact, such as during a collision.

As shown in the figure, the door lock main body A is of a conventionally known type, and is interlocked with locking/unlocking means (not shown) provided at appropriate locations inside and outside the vehicle interior, and locking/unlocking means (not shown) shown by solid lines and dashed lines, respectively. It is provided with first and second locking/unlocking members 1 and 2 which are movable between the locking and unlocking positions.

The first and second locking/unlocking members 1, 2 are biased by an over-center spring 3 toward either the locking or unlocking position with the dead center as the boundary.

Reference numeral 4 denotes a second lever which, by coming into contact with the contact portion 2a of the second locking/unlocking member 2, moves the second locking/unlocking member 2 in the unlocking direction.

Reference numeral 5 denotes a first spring for biasing the lever 4 in a direction in which it can come into contact with the contact portion 2a of the second locking/unlocking member 2.

Note that the first and second locking/unlocking members 1 of the first spring 5,
The biasing force acting on 2 is the overcenter spring 3
This is assumed to be greater than the urging force of .

Reference numeral 6 denotes a second lever, which is movable between the engagement and disengagement positions shown by a solid line and a two-dot chain line in FIG.
It has a retaining portion 6a that engages with the tip end portion 4a of and prevents rotation of the first lever 4 in the biasing direction by the first spring 5.

Reference numeral 7 denotes a second spring for biasing the second lever 6 in the direction of engagement with the tip portion 4a of the second lever 4.

Note that the second lever 6 is connected to the driving means B such as the solenoid.
is connected to the movable part B' of, and by excitation of the driving means B,
The lever 4 is moved to the detached position from the tip end 4a.

Since the present invention is configured as described above, normal locking/unlocking operations from inside and outside the vehicle interior are performed in the same manner as conventional operations.

That is, when the locking/unlocking means is operated to lock or unlock, each member moves to the locking or unlocking position shown by the solid line and double-dashed line in FIG. 1 and FIG. It is done.

If the vehicle body receives a sudden shock due to a collision or the like while driving with the vehicle locked, the inertia switch is activated and the drive means B is energized, causing the second lever to be activated via the movable portion B. 6 resists the urging force of the second spunong 7,
The second lever 6 moves to the detached position, and the engaging portion 6a of the second lever 6 is disengaged from the tip portion 4a of the second lever 4.

As a result, as shown in FIG. 3, the first spring 5
Due to the urging force of Move to and unlock.

Therefore, in an emergency, the occupant can quickly open the door and escape from the vehicle.

As described above, according to the present invention, the movable part B of the drive means B
', it is sufficient to use an operating force such as an electromagnetic force that moves the second lever 6 to the release position against the biasing force of the second spring 7. It does not require an extremely large force to resist the biasing force, and therefore has the advantage that the driving means B such as a solenoid can be downsized and its mounting position is not restricted.

In addition, in the above embodiment, the present invention describes a means for automatically unlocking by providing an inertia switch, but it is not limited to this. For example, a means for automatically unlocking by providing a switch sensitive to speed, etc. Of course, the same effect can be obtained even if the structure is locked.

Furthermore, the driving means is not limited to a solenoid, but may also be a motor or the like.

[Brief explanation of the drawing]

The drawings show an embodiment of the automobile door lock device according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a plan view, and Fig. 3 is a plan view.
The figure is a front view when the driving means is activated. A...Door lock body, B...Driving means, B'...Movable part, 1...First locking/unlocking member, 2... ...Second locking/unlocking member, 2a...
...Abutment part, 3...Over center spring, 4...Top lever, 4a...Tip part, 5...First spring, 6... ...Second
Lever, 6a...Engaging portion, 7...Second
spring.

Claims (1)

[Scope of Claim for Utility Model Registration] In an automobile door lock device having a locking/unlocking member that can be moved between a locking position and an unlocking position by a locking/unlocking means provided at a suitable location inside or outside the vehicle interior. , a first lever that can come into contact with the locking/unlocking member in either one of the locking or unlocking directions; a first spring that constantly biases the first lever in a direction that allows the first lever to come into contact with the locking/unlocking member; and a first spring that engages with the first lever. a second lever having a removable retaining portion; a second spring that constantly biases the second lever in a direction to engage the second lever; A door lock device for an automobile, characterized in that it is provided with a drive means for moving the door lock device to a position where it is released from the door lock device.