JPS6147263B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in locking and unlocking mechanisms for automobiles.

As is well known, a car door needs to have a structure that can prevent the door from being opened accidentally while the car is driving or accidentally opened when the car is parked. For this reason, conventionally, as shown in Fig. 1 (for example, Service Bulletin No. 401 "Introduction of the New Datsuto Sun Bluebird 910 Model Vehicle"), a lock knob B was placed on the interior side of the door body A, and a key was placed on the outside of the vehicle. A cylinder C is provided, and the lock knob B and key cylinder C are connected to a control lever (not shown) of the door lock unit D by rigid rods E ₁ and E ₂ .
The door lock unit D can be locked and unlocked from inside and outside the door as needed. However, with the structure of such a conventional door lock mechanism, it may be difficult to deal with malicious unlocking of the door lock unit D from outside the vehicle. For example, rod
If E ₁ or E ₂ is attacked, the control lever of the door lock D may move and the door lock unit D may be unlocked.

In order to solve the above-mentioned structural problems of the conventional door lock mechanism, the present invention locks the lock unit in the pulling direction of the inner wire using a flexible cable consisting of an inner wire and an outer tube between the locking/unlocking member such as a key cylinder and the door lock unit. This is intended to prevent malicious unlocking from outside the vehicle by locking the vehicle.

The details of one embodiment of the present invention will be described below with reference to FIG.

FIG. 2 is a partially cutaway end view of the left front door to which the present invention has been applied, in which a key cylinder 2 is fixed to the outer panel 1a of the door body 1;
Further, the door lock unit 3 is fixed to the end face of the inner panel 1b of the door body 1, just as in the conventional case. And the key cylinder 2
A key cylinder lever 5 is fixed to the end of the key cylinder lever 5, which is rotated to the position shown in the imaginary line by key operation. A key lever 6 that can unlock the door 3 is provided.

According to the present invention, a pair of stays 7A, 7B are fixed to the inner surface of the outer panel 1a facing the key cylinder lever 5 and the key lever 6, and to the door lock unit 3.
Both end caps 9A and 9B of the outer tube 8 are fixed to B, respectively.

Further, an inner wire 10 is inserted into the outer tube 8 so as to be freely movable in the length direction, and both ends 10a and 10b of the inner wire 10 led out of the outer tube 8 are connected to the key cylinder lever 5 and the key lever. 6, respectively. The core wire used in the present invention is not limited to wires, but may be any flexible wire material.

Since the door lock mechanism according to the embodiment has the above structure, when the key cylinder lever 5 is rotated to the position shown by the imaginary line by key operation, the amount of movement of the end 10a of the inner wire 10 is equal to that of the other end of the wire 10. 10b, the key lever 6 is rotated to the position shown by the imaginary line, and the door lock unit 3 is rotated.
is unlocked. Therefore, even if the outer tube 8 is attacked by an external force, the outer tube 8 will only be deformed and the inner wire 10 will not move in the length direction, so the locked door lock unit 3 can be unlocked by mischief. That will no longer be the case. Also, if a force that stretches the outer tube 8 is applied to the outer tube 8, a pulling force will be generated on the inner wire 10, but since the door is locked when the key lever 6 of the door lock unit 3 is pulled,
The door lock unit 3 never unlocks the door. It is clear that the protective tube and the core wire may be provided between the lock knob and the door lock unit.

As is clear from the above description, according to the present invention, the structure is such that the member connecting the locking/unlocking member and the control lever of the locking unit is replaced with a flexible wire, and the locking unit is locked by pulling the inner wire. This provides a highly secure door lock mechanism that cannot be unlocked by tampering.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional front door, and FIG. 2 is an end view of the door incorporating the locking/unlocking mechanism of the present invention. DESCRIPTION OF SYMBOLS 1... Door body, 2... Locking/unlocking member (key cylinder), 3... Lock unit, 6... Control lever (key lever), 8... Outer tube, 10... Inner wire.

Claims (1)

[Claims] 1. In an automobile locking/unlocking mechanism in which a control lever of a lock unit is controlled by a locking/unlocking member such as a key cylinder or a locking knob, one end of the inner wire of a flexible cable consisting of an inner wire and an outer tube is connected to the locking/unlocking member, and the other end is connected to the locking/unlocking member. The locking/unlocking mechanism for an automobile is characterized in that the locking unit is connected to the control lever so as to lock in the pulling direction of the inner wire and unlock in the pushing direction, and both ends of the outer tube are fixed to the vehicle body.