JPH038760Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking device having a latch buffering function to suppress the impulse of a striker during locking.

Automobile doors, trunks, hoods, hatchbacks, etc. are usually equipped with locking devices to lock them. The structure of a general latch mechanism of the locking device is shown in FIGS. 1-2.

In the figure, latch base 1 has striker 2.
An opening 3 into which is inserted is provided, and an engaging pawl 4 and an operating pawl 5 are rotatably pivoted on opposite sides of the opening 3. Engaging claw 4 and operating claw 5
A spring 6 is connected to the lower end of the spring 6, and the springs 6 are biased so as to be pulled together. On the other hand, the tip of the engagement claw 4 has a recess 4 that engages with the striker 2.
a is formed, and its side end surface 4b is pressed against the side end surface 5a of the actuating claw 5. Further, a wire for rotating the operating claw 5 is connected to the lower end of the operating claw 5, and a lever 7 for rotating the operating claw 5 is provided coaxially with the operating claw 5.

In the above configuration, as shown in Fig. 1, the striker 2
is inserted into the opening 3, and when the engaging claw 4 is pressed downward, the engaging claw 4 rotates over the side end surface 5a of the actuating claw 5, as shown in FIG. gets stuck. At the same time, the operating claw 5 is also rotated by being attracted by the spring 6, and the engaging claw 4
The other end is fixed in engagement with the side end surface 5b of the actuating claw 5.

On the other hand, when the actuating pawl 5 is rotated counterclockwise in FIG. 2 against the spring 6 by the wire or lever 7, the engagement between the engaging pawl 4 and the actuating pawl 5 is released.
The engagement pawl 4 is rotated in the same direction under the tension of the spring 6, and the recess 4a opens toward the opening 3, so that the striker 2 is removed from the opening 3.

In the above-mentioned locking device, in order to ensure locking and improve the feeling when locking, the conventional locking device has a play amount A in the opening 3 as shown in Fig. 3.
has been established. For this reason, when the vehicle is running, the locked striker moves up and down due to its vibrations and relative displacement and collides with the peripheral wall of the opening, causing abnormal noise.

The present invention solves the above-mentioned problems of the prior art and provides a locking device which prevents the generation of abnormal noise during locking, and which comprises a latch base having an opening in which a striker is engaged, and one of the latch bases. A locking device comprising an engaging pawl provided on a flat surface and capable of restraining the striker, the locking device holding the striker by the engaging pawl, which is attached to the other flat surface of the latch base near the bottom of the opening. and a substantially V-shaped bottomless bracket with an inclined holding surface that opens toward the same direction as the opening, and a V-shaped groove formed at the upper end so as to protrude from the bottom of the opening. The latch base is characterized by comprising a cushioning material that is closely held between the latch base and the bottomless bracket.

The present invention will be explained in detail below based on an embodiment shown in the drawings.

FIG. 4 shows the locking device of the present invention.

The locking device of the present invention includes the engaging pawl 4, operating pawl 5, spring 6, and lever 7 on the back side of the latch base 1 in the same manner as described above. Next, on the front surface of the latch base 1, there is a bottomless bracket 8 in a V-shape that is opened upward in the same way as the opening 3.
The bottomless bracket 8 is provided with inclined holding surfaces on both sides of the inner side. A cushioning material 9 is attached to the inside of this bottomless bracket 8, and the front and rear surfaces of this cushioning material 9 are held in close contact with the latch base 1 and this bottomless bracket 8, and its left and right surfaces are held by inclined holding surfaces. be done.

At this time, the bottomless bracket 8 is connected to the latch base 1.
Since the cushioning material 9 is attached to the front surface and is open upward, it can be easily assembled by simply inserting the cushioning material 9 from above, and replacement is also easy.

In addition, the cushioning material 9 is designed so that the free play A at the time of locking is eliminated, or the free play A is compressed by the cushioning material 9.
The upper end thereof is provided so as to protrude from the bottom of the opening 3 so that the opening 3 disappears. As the material of the buffer material 9, it is preferable to use an elastic material such as damper rubber.

Furthermore, a cushioning material 9 that becomes a contact surface with the striker 2 is provided.
Since the V-shaped groove is formed on the upper end surface of the striker 2, it is possible to suppress the relative displacement of the striker 2 to the left and right with respect to the latch.

On the other hand, since the bottomless bracket 8 is formed in a V-shape that opens upward and has no bottom, the input from the striker 2 is received by the inclined holding surfaces on both sides of the bracket 8 via the cushioning material 9. The allowance for overrun is ensured by compressing the cushioning material 9 in the horizontal and vertical directions, thereby suppressing the relative movement of the striker 2 in the vertical and horizontal directions, and allowing the cushioning material 9 to sink along the inclined holding surface of the bottomless bracket 8. Therefore, the vibration of the cushioning material 9 itself is also prevented, and no abnormal noise is generated when the vehicle is running.

In the above structure, the striker 2 is inserted into the latch opening 3, and the engaging pawl 4 and the operating pawl 5 are operated and locked in the same manner as in FIGS. 1 and 2. In this case, the striker 2 comes into pressure contact with the V-shaped groove of the cushioning material 9, and the input is received by the inclined holding surface of the bottomless V-shaped bracket 8 through the cushioning material 9. Relative movement in the vertical and horizontal directions is suppressed by compression and depression in the horizontal, vertical, and vertical directions, and no abnormal noise is generated during driving as in the conventional case.
On the other hand, since the cushioning material 9 is compressed by the pressure of the striker 2, when the lock is locked, a lock feeling similar to that of the conventional lock can be obtained.

In addition, since the cushioning material 9 is held by a bottomless bracket that is open upward and is attached to the flat surface of the latch base 1 on the opposite side to the mounting surface of the engaging claw 4, it is easy to attach, and the locking device It can be easily replaced without disassembling it.

[Brief explanation of the drawing]

Fig. 1 is an external view showing a general latch mechanism, Fig. 2 is an explanatory view showing the engaged state of the latch, Fig. 3 is an external view showing a conventional locking device, and Fig. 4 is an external view of the locking device of the present invention. FIG. In the figure, 1 is the latch base, 2 is the striker, and 3
4 is an opening, 4 is an engaging claw, 5 is an operating claw, 6 is a spring, 7 is a lever, 8 is a bracket, and 9 is a buffer material.

Claims (1)

[Scope of utility model registration request] A locking device comprising a latch base having an opening into which a striker is engaged, and an engaging pawl provided on one plane of the latch base and capable of restraining the striker, the locking device holding the striker by the engaging pawl, The other flat part of the latch base is a bottomless bracket which is installed near the bottom of the opening and has a substantially V-shape and is open in the same direction as the opening and has an inclined holding surface formed thereon; A locking device comprising: a cushioning material closely held between the latch base and the bottomless bracket so that the V-groove formed therein protrudes from the bottom of the opening.