JPH0758020B2 - Wedge in vehicle door locking device - Google Patents

Description

The present invention relates to a wedge in a vehicle door lock device.

(Prior Art) Conventionally, a recess that accommodates a latch that engages with a striker fixed to the vehicle body in a synthetic resin body that is attached to a door side, a ratchet that prevents reverse rotation of the latch, and a striker guide groove into which the striker enters And a recessed portion for a wedge whose bottom is a sliding surface is formed on the outdoor side of the lower guide wall of the striker guide groove, and the recessed portion for the wedge is formed by the elastic force of the spring when the door is open. A wedge made of synthetic resin that moves to the outside with the striker when the door is moved to the indoor side and closed by the engagement with the striker is provided with an insertion hole for a guide pin that penetrates in the moving direction of the wedge. A wedge in a vehicle door lock device which is formed and has one or a plurality of lightening holes other than the insertion hole is known in the art.

(Problems to be solved by the invention) In the known wedge, one to a plurality of lightening holes are formed in addition to the insertion hole for the wedge guide pin, but the purpose is to prevent distortion during wedge molding. It is prevention, and it has the same effect.

However, when the lightening hole is formed, the strength reduction is unavoidable.

Therefore, the present invention avoids compensating by enlarging the strength, uses the technique of the filling material, and further devises the structure of the filling material to have the effect of further quieter locking. Is.

(Object of the Invention) The present invention provides a wedge in a vehicle door lock device capable of minimizing the collision noise of the wedge at the time of closing and opening the door and ensuring the strength of the wedge without increasing the size. It is in.

(Means for Solving the Problem) Therefore, according to the present invention, the latch 3 that engages with the striker 10 fixed to the vehicle body side is attached to the synthetic resin body 1 attached to the door side.
Also, a recess 2 for accommodating the ratchet 4 for preventing the latch 3 from rotating in the reverse direction and a striker guide groove 11 into which the striker 10 enters are formed, and a lower guide wall of the striker guide groove 11 is formed.
On the outside of the room 12, a recess 23 for the wedge whose bottom is a sliding surface 27 is formed downward. In the recess 23 for the wedge, when the door is opened, the elastic force of the spring 21 moves to the inside of the room and when the door is closed, the striker is opened. A wedge 13 made of synthetic resin that moves to the outdoor side together with the striker 10 by engagement with 10 is provided with an insertion hole 20 for a guide pin 19 penetrating in the moving direction of the wedge 13. In addition, in the wedge 13, one to a plurality of lightening holes 15 are formed in addition to the insertion hole 20, and at least one of the lightening holes 15 has an indoor projection 17 and an outdoor projection 18 When the door is opened, the indoor projection 17 collides with the indoor side wall 24 of the wedge recess 23 and the outdoor projection 18 collides with the outdoor recess 25 of the wedge recess 23 when the door is closed. With the wedge in the vehicle door lock device configured as It is.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a synthetic resin body of a lock device attached to a door of a vehicle, a recess 2 is formed on the front surface side, and a latch 3 is provided in the recess 2. The ratchet 4 and the ratchet 4 are rotatably fixed by shafts 5 and 6, respectively. 7 is a striker engagement groove formed in the latch 3,
Reference numeral 8 is the same half-latch step portion, and 9 is the same full-latch step portion. Although not shown, an open lever for rotating the ratchet 4 is provided on the back side of the body 1.

Reference numeral 10 denotes a striker fixed to the vehicle body side. When the door is closed, it enters a striker guide groove 11 formed in the synthetic resin body 1 and engages with a striker engagement groove 7 of the latch 3.

A wedge recess 23 is formed on the outdoor side (right side in FIG. 1) of the lower guide wall 12 of the striker guide groove 11, and a synthetic resin wedge 13 is inserted into the wedge recess 23.
It is provided so as to be movable in 10 movement directions. Upper surface 14 of wedge 13
Is located slightly above the lower guide wall 12, and when the striker 10 enters the striker guide groove 11, the upper surface 14 of the wedge 13 is
And the wedge 13 is moved to the outdoor side, and the striker 10 moves to the upper guide wall 26 of the striker guide groove 11 and the wedge.
It is held by the upper surface 14 of 13 and.

The wedge 13 is formed by a desired means such as molding or injection molding, but at this time, distortion after molding (so-called sink mark)
About 1 to 3 holes 15 for preventing lightening are formed. The lightening hole 15 is provided so as to penetrate in the moving direction of the wedge 13.

Then, in the present invention, the elastic body 16 is mounted in the lightening hole 15. This is the gist of the present application. The elastic body 16 is formed in substantially the same shape as the lightening hole 15, and both ends of the elastic body 16 respectively project outward from the lightening hole 15 to form them on the indoor-side protruding portion 17 and the outdoor-side protruding portion 18. .

Reference numeral 19 denotes a guide pin for the wedge 13, which is inserted into an insertion hole 20 formed in the wedge 13 and then attached to the synthetic resin body 1.

Reference numeral 21 is a spring for urging the wedge 13 toward the indoor side, 22 is a stopper rubber provided at the innermost side of the striker guide groove 11, 24 is an inner side wall of the recess 23, 25 is an outer wall of the recess 23, and 27 is a recess for wedge. 23 sliding surfaces.

(Operation) Next, the operation will be described.

The present invention has the above-described structure. When the door is closed, the striker 10 enters the striker guide groove 11 and abuts the striker engaging groove 7 of the latch 3 to rotate the latch 3 so that the striker 10 stops. When it comes to the position where it abuts on the rubber 22, the ratchet 4 engages with the full-latch step 9 of the latch 3, the reverse rotation of the latch 3 is prevented, and the locking is completed.

Then, in the above, when the striker 10 enters the striker guide groove 11, the striker 10 vigorously abuts the upper surface 14 of the wedge 13, so that the wedge 13 is strongly repelled to the outside of the chamber and resists the elasticity of the spring 21. Move outwards, wedge recess 23
Collides with the outdoor side wall 25 of. At this time, since the elastic body 16 having the outdoor protruding portion 18 is provided in the lightening hole 15 of the wedge 13, it is possible to minimize the occurrence of the collision sound.

Next, when the open lever is operated to rotate the ratchet 4, the latch 3 becomes free and the striker 10 is opened. Then, until then, the wedge 13 that was kept outside by the engagement with the striker 10 is also released,
The elastic force of the spring 21 causes it to be vigorously returned to the inside of the room, and the recess 23
Collides with the indoor side wall 24 of the. At this time, the lightening hole 15 of the wedge 13 is provided with the elastic body 16 having the indoor-side protruding portion 17, so that the generation of the collision noise can be suppressed to the minimum.

Further, since the elastic body 16 is provided in the lightening hole 15 of the wedge 13, there is no reduction in strength due to the lightening hole 15, so that the wedge 13 can be formed in a small size.

(Effect) As described above, according to the present invention, the latch 3 that engages with the striker 10 fixed to the vehicle body, the ratchet 4 that prevents reverse rotation of the latch 3, and the like are housed in the synthetic resin body 1 attached to the door side. Forming a recess 2 and a striker guide groove 11 into which the striker 10 enters, and a recess 23 for a wedge in which the lower guide wall 12 of the striker guide groove 11 is recessed downward on the outside of the room and the bottom is a sliding surface 27. In the wedge recess 23, the wedge 13 made of synthetic resin moves to the indoor side by the elastic force of the spring 21 in the opened state and moves to the outdoor side together with the striker 10 by the engagement with the striker 10 when the door is closed. Is provided
The wedge 13 is formed with an insertion hole 20 for a guide pin 19 which penetrates in the moving direction of the wedge 13, and the wedge 13
In addition to the insertion hole 20, one or a plurality of lightening holes 15 are formed in the hole 13, and at least one of the lightening holes 15 has an elasticity having an indoor projection 17 and an outdoor projection 18. When the body 16 is attached, the indoor projection 17 is the wedge recess 23 when the door is opened.
Since the outdoor projection 18 collides with the indoor side wall 24 of the vehicle door lock device configured to collide with the outdoor side wall 25 of the wedge recess 23 when the door is closed, the above-described object can be achieved well. .

[Brief description of drawings]

FIG. 1 is an overall cross-sectional plan view, FIG. 2 is an exploded perspective view of an essential part, and FIG. 3 is an enlarged transverse sectional view of the essential part. DESCRIPTION OF SYMBOLS 1 ... Synthetic resin body, 2 ... Recessed portion, 3 ... Latch, 4 ... Ratchet, 5 ... Shaft, 6 ... Shaft, 7 ... Striker engagement groove, 8
... Half-latch step, 9 ... Full-latch step, 10 ... Striker, 11 ... Striker guide groove, 12 ... Lower guide wall, 13 ... Wedge, 14 ... Top surface, 15 ... Lightening hole, 16 ... Elastic body, 17 ... Chamber Inner protrusion, 18 ... Outdoor protrusion, 19 ... Guide pin, 20 ... Insertion hole, 21 ... Spring, 22 ... Stopper rubber, 23 ... Wedge recess, 24 ... Indoor side wall, 25 ... Outdoor wall, 26 ... Upper guide wall,
27… Sliding surface.

Claims (1)

[Claims] 1. A recess 2 for accommodating a latch 3 which engages with a striker 10 fixed to the vehicle body on a synthetic resin body 1 mounted on the door side, a ratchet 4 for preventing reverse rotation of the latch 3 and the like, and the striker 10. Striker guide groove 11
And a recessed portion 23 for a wedge whose bottom is a sliding surface 27 is formed on the outside of the lower guide wall 12 of the striker guide groove 11, and the recessed portion 23 for the wedge is in an open door state. Then, a wedge 13 made of synthetic resin is provided, which moves to the indoor side by the elasticity of the spring 21 and moves to the outdoor side together with the striker 10 when the door is closed by the engagement with the striker 10.
Has a guide pin 19 penetrating in the moving direction of the wedge 13.
And a plurality of lightening holes 15 are formed in the wedge 13 in addition to the insertion holes 20. At least one of the lightening holes 15 projects toward the indoor side. An elastic body 16 having a portion 17 and an outdoor side projection 18 is attached, and the indoor side projection 17 is an indoor side wall 24 of the wedge recess 23 when the door is opened.
The wedge in the vehicle door lock device configured to collide with the vehicle outer side protruding portion 18 and collide with the outdoor side wall 25 of the wedge recess 23 when the door is closed.