JPS5821872Y2 - Lock/unlock knob with anti-theft device for automobile door locks - Google Patents

Description

[Detailed description of the invention] This invention is a locking/unlocking system with an anti-theft device that prevents the door from being unlocked from outside the car unless the key cylinder is activated using a key when the car door lock is locked. It's about the knob.

Conventionally, commonly used door lock devices for automobiles depend on the structure of the device by inserting a wire or a thin plate whose tip is bent into an L-shape or a U-shape from outside the vehicle between the vehicle body and the door. It is possible to unlock the vehicle by pushing aside the feather strip installed in the vehicle, entering the vehicle interior or the door, and pulling up the lock/unlock knob or the lock/unlock lever of the door lock device. This has the disadvantage that it may be misused and stolen.

This invention was made to eliminate the drawbacks mentioned above.
Even if an object from outside the vehicle attempts to pull up the lock/unlock knob or the lock/unlock lever of the door lock device to the unlocked position, the lock/unlock knob located on the inside of the vehicle door may be prevented from operating. The object of the present invention is to provide a lock/unlock knob with an anti-theft device which is equipped with an anti-theft device to restrain the vehicle, and which cannot be unlocked from outside the vehicle unless the key cylinder is activated using a key. Hereinafter, explanation will be given based on embodiment figures.

The lock/unlock knob with anti-theft device of the present invention is fitted into a cylindrical grommet 1 arranged in the vertical direction of the lower part of the window frame 8 on the interior side of the vehicle door, and into the grommet 1 so as to be vertically slidable. A sliding member 2 is connected to the lock/unlock lever B of the door lock device A via a rod 6, and the sliding member 2 is pivotally attached to the sliding member 2 with a pivot shaft 4 so as to be able to swing in the middle, and the upper end is operated. It is provided with a locking part 3b that can be engaged with and detached from the lower end 1a of the grommet 1 at the lower end and the side part, and is connected to the lever D of the key cylinder C via the rod 7 to the other intermediate side part. The lower end of the operating lever 3 has a locking part 3b on the lower end side for biasing the locking part 3b in the direction of engagement with the lower end 1a of the grommet 1. A spring 5 is provided.

Next, the operation of the present invention having the above-described configuration will be explained.

Figures 1 and 2 show the locked state, and the bar 3 is operated.
is located at the lowest part of the grommet 1 together with the sliding member 2, and a locking portion 3b at the lower end side of the operating lever 3 engages with the lower end portion 1a of the grommet 1.

From this state, put your finger on the operating part 3a at the upper end of the operating lever 3, and as shown by the two-dot chain line in FIG.
is rotated around the pivot shaft 4 against the biasing force of the spring 5 to release the locking part 3b from the lower end 1a of the grommet 1, and then pinch the operating part 3a of the operating lever 3,
Pull up the operating lever 3 along with the sliding member 2 upward along the grommet 1 as shown in FIG.

Then, the locking/unlocking lever B of the door locking device A, which is connected to the sliding member 2 via the rod 6, operates in the unlocking direction, and the rod 7 is attached to the arm portion 3C on the other intermediate side of the operating lever 3. The lever D of the key cylinder C connected via the lever D is also operated, and the key cylinder C is unlocked.

In addition, when the key is used from outside the vehicle to unlock the key cylinder C and operate the lever D in the locked state, the operating lever 3 rotates around the pivot shaft 4 via the rod 7, and the operating lever 3 The locking part 3b at the lower end and the side part is disengaged from the lower end part 1a of the grommet 1, and further, by the operation of the lever D of the key cylinder C, the operating lever 3 is attached to the grommet together with the sliding member 2 via the rod 7 and the arm part 3C. The lock/unlock lever B of the door lock device A is actuated in the unlocking direction via the rod 6 that is moved upwardly along the slide member 1 and connected to the sliding member 2 to be unlocked.

In the present invention, the unlocking operation of the door lock device A is performed as described above, so that when the door lock device A is in the locked state, the L-shaped tip can be seen from the outside using a wire or a thin plate whose tip is bent into a U-shape. The feather installed between the car body and the door
Even if you try to push the strip away and enter the vehicle interior or door and pull up the operating lever 3 or the locking/unlocking lever B to unlock it, the locking part 3b on the lower end and side of the operating lever 3 will be stuck. Since it engages with the lower end portion 1a of the grommet 1 and restrains the sliding member 2 from sliding in the unlocking direction, it will not be unlocked.

That is, in the present invention, when the door lock device is locked, it will never be unlocked unless the lever of the key cylinder is operated using the key from outside the vehicle.
It is extremely effective in preventing theft, has a simple configuration, and can be provided at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the locking/unlocking knob with an anti-theft device for a car door lock according to the present invention. Fig. 1 is a front view when the lock is locked, and Fig. 2 is an enlarged longitudinal sectional front view of the main part. , FIG. 3 is an enlarged vertical sectional front view of the main parts when the lock is unlocked, and FIG. 4 is an exploded perspective view. A: Door lock device, B: Lock/unlock lever, C: Key cylinder, D:
Lever, 1...Grommet, 1a...
Lower end portion, 2...Sliding member, 3...Control lever, 3a...Control unit, 3b...Locking part, 3C...・・Arm part, 4・・・Pivot, 5
... Spring, 6 ... Rod, 7.
...Rod, 8...Window frame.

Claims (1)

[Scope of Claim for Utility Model Registration] A cylindrical grommet 1 arranged vertically at the bottom of a window frame 8 on the interior side of an automobile door, and a grommet 1 fitted into the grommet 1 so as to be movable vertically. A sliding member 2, which is pivotably attached to the sliding member 2, has an operating portion 3a at its upper end, and a grommet 1 (7) at its lower end side. An operating lever 3 having a lower end portion 1a and a removable locking portion 3b is provided, and the operating lever 3 is connected to the lower end of the grommet 1 around the pivot shaft 4 by means of a spring tongue 5. At the same time, the sliding member 2 and the lock/unlock lever B of the door lock device A are connected via the rod 6, and the lever D of the key cylinder C and the operating lever 3 are A locking/unlocking knob with an anti-theft device for an automobile door lock, characterized in that an arm portion 3C is connected via a rod 7.