JPH0341571Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a door lock device used for locking the back door of an automobile, and more particularly to a steady rest device that prevents a striker from moving when the door is locked.

``Prior Art and its Problems'' FIGS. 4 and 5 show a conventional door lock device of this type. For example, a base plate 11 fixed to the vehicle body side is formed with an entry groove 13 for a striker 12 having a circular cross section and fixed to the backdoor side, and a latch 14 and a pawl 15 are attached to shafts 16 and 17 on both sides of this entry groove 13. It is pivoted. The latch 14 and pawl 15 constitute a latch mechanism that holds or releases the striker 12.
The latch 14 has a retaining groove 18 for the striker 12.
The pawl 15 has a locking portion 20 that engages with the engaging portion 19.
is provided. 21 and 22 are this latch 1
4 and the pawl 15 in the direction of engagement shown by the arrow. The latch 14 holds the striker 12 in its holding groove 18 when the engaging portion 19 and the locking portion 20 are engaged, and releases the striker 12 when the engagement between the two is disengaged. The striker 12 is opened by rotating the pole 15 against the force of the torsion spring 22.

On one side of the entry groove 13 of the base plate 11,
A slide block 24 for steadying the striker 12 is located there. This slide block 24
is movable in a direction parallel to the direction in which the striker 12 enters, guided by a guide bar 25, and is urged to move toward the entrance side of the striker 12 by a compression spring 26. And this slide block 2
4 has a tapered surface 27 that comes into contact with the striker 12.
is formed. Reference numeral 28 denotes a rubber cushion material located at the inner part of the entry groove 13 and with which the striker 12 comes into contact.

This conventional door lock device closes the door and
Place the striker 12 into the entry groove 1 of the base plate 11.
3, the striker 12 collides with the tapered surface 27 of the slide block 24, and the slide block 24 is pushed inward while bending the compression spring 26. Therefore, the striker 12 receives a force in the lateral direction from the tapered surface 27 of the slide block 24, and this force prevents the striker 12 from wobbling laterally within the entry groove 13.

However, in this conventional device, the striker 12 is only pushed by the slide block 24 on one side of the entry groove 13, so the slide block 24 may not be able to suppress the movement of the striker 12 when driving on rough roads. It was hot. In other words, since the slide block 24 engages only one side of the striker 12, one side of the striker 12 can be suppressed, but the other side cannot be sufficiently suppressed, which causes the striker 12, that is, the door, to vibrate. , or a rattling occurs and an abnormal noise occurs. The present applicant has already proposed Utility Model Application No. 57-137280 (Utility Application No. 56-24154) in order to prevent the generation of such vibrations and abnormal noises of the striker, and has achieved certain results.

``Purpose of the invention'' This invention was published in Utility Model Application No. 137280 (1983).
The object of the present invention is to obtain a device that can more effectively prevent striker vibrations and the generation of abnormal noises caused by the vibrations by having a configuration different from that of the device proposed in No. 24154).

"Summary of the invention" This invention has a striker holding groove on the entry groove of the base plate, and a slide block made of synthetic resin that is movable in the direction in which the striker enters is arranged, and the rear outer periphery of the slide block and the base plate A rubber block material is disposed between the rubber receiving surface formed on the side, and the left and right outer surfaces of the slide block and the left and right inner surfaces of the rubber block material that abut the left and right outer surfaces of the slide block are connected to the entrance groove. with a tapered surface open to the inlet side,
When the slide block is pushed by the striker and the rubber block material is deformed, the action of this tapered surface applies reaction forces to the slide block from both left and right directions. When force is applied from the left and right to the slide block that holds the striker in this way, the slide block follows the movement of the striker well, so there is no relative movement between the striker and the slide block, which prevents abnormal noise from occurring. be able to.

``Embodiments of the invention'' The invention will be described below with reference to illustrated embodiments. 1 to 3 show an embodiment of the present invention, and the same components as those of the conventional device shown in FIGS. 4 and 5 are given the same reference numerals. In this embodiment, the base plate 30 includes a rear plate 31,
Front plate 32 and both plates 3
The latch 14 and the pawl 15 are sandwiched between the rear plate 31 and the resin case 33. Further, the springs that bias the latch 14 and the pawl 15 in the direction of engagement are located in the spring grooves 34 and 35 of the resin case 33.
It consists of compression springs 36, 37 which are inserted into the latch 14 and the pawl 15, with one end of the compression springs 36, 37 abutting against spring receiving pins 38, 39 which are erected on the latch 14 and the pawl 15.

The resin case 33 has slide blocks 4 located on both left and right sides of the entry groove 13 and in the inner part thereof.
3 and a housing recess 40 for a rubber block material 44 are formed. In front of this storage recess 40,
A pair of locking grooves 41 are formed on the entrance side of the entrance groove 13 and open outward, and the rear part is a rubber receiving surface 42 located around the inner part of the entrance groove 13. There is.

The slide block 43 has a striker holding groove 43a located above the entry groove 13, and the storage recess 4
It is possible to move within 0. The retaining groove 43a has a pair of opposing tapered surfaces 43b as its deep abutment surfaces with the striker 12, and the striker 12 has a pair of opposing tapered surfaces 43b.
The pair of tapered surfaces 43b always make contact with the left and right sides at two locations. And this slide block 4
The left and right outer surfaces of No. 3 form a pair of tapered surfaces 43c. 43d is a leg portion that fits into the retaining groove 41.

On the other hand, the rear outer periphery of this slide block 43,
The rubber block material 44 is inserted between the rubber receiving surface 42 and the rubber receiving surface 42. This rubber block material 44 is divided into left and right lateral pressing parts 44b and a deep pressing part 44c by a dividing groove 44a. A tapered surface 44d corresponds to the surface 43c.

The rubber block material 44 and slide block 43 are stored in the storage recess 40 with the rubber block material 44 being slightly compressed. The opening angle in the free state of the tapered surface 44d of the rubber block material 44 is made slightly smaller than the opening angle β of the tapered surface 43c of the slide block 43, as shown by the chain line in FIG. It is desirable to have more compression.

Therefore, in this device having the above configuration, the door is closed and the striker 12 is inserted into the entry groove 1 of the base plate 30.
3, the striker 12 enters the holding groove 43a of the slide block 43, contacts the tapered surface 43b, and pushes the block 43. Then, the block 43 compresses the inner pressing portion 44c of the rubber block material 44, and diagonally presses and compresses the side pressing portion 44b with its outer tapered surface 43c. The compressed rubber block material 44 is
The elastic force generates a reaction force in the opposite direction to the compressive force as shown by the arrow in FIG. 3, and the slide block 43
The striker 12 sandwiched between the tapered surfaces 43b is held in a stable state by receiving forces from both left and right directions and from the inner part.

In this way, when the striker 12 is in the locked state,
Via the tapered surface 44d of the rubber block material 44 and the tapered surface 43b of the slide block 43,
Since force is always received from the left and right sides, even if the striker 12 moves left and right, the slide block 43 can easily follow this movement. Of course, the inner pressing portion 44c of the compressed rubber block material 44 acts to push the slide block 43 toward the entrance side of the entry groove 13 and to bring the striker 12 into close contact with the tapered surface 43b and the holding groove 18 of the latch 14. Therefore, even if a large force is applied to the striker 12 due to driving on a rough road, the striker 12 (door) can be prevented from vibrating and rattling, thereby preventing the occurrence of abnormal noise. Also, the slide block 43 and the rubber block material 44
When the door is closed with strong force, the striker 12
The striker 12 also has the effect of buffering the movement and the effect of pushing the striker 12 in the direction opposite to the direction of entry to remove play, so that the striker can be more reliably prevented from swinging.

"Effects of the Invention" As described above, the door lock device of the present invention has a slide block having a striker holding groove disposed above the striker entry groove, and this slide block is made of rubber block material surrounding the rear outer periphery of the slide block. Since it comes into elastic contact with the striker, the striker can be held in a stable state.
In particular, since the left and right outer surfaces of the slide block and the inner surface of the rubber block material engage with each other at the tapered surface, the force that pushes the slide block in the direction of the entry groove applies a reaction force to the slide block from the left and right directions. This makes it possible to suppress the movement of the striker and prevent the generation of abnormal noise. Furthermore, the slide block and the rubber block material not only reduce the impact when the striker enters, but also eliminate play in the direction in which the striker enters, thereby making it possible to more reliably prevent the striker from swaying.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the door lock device of the present invention, Fig. 2 is a plan view of the same base plate in an assembled state with the rear plate and front plate removed, and Fig. 3 is a view of the door lock device in an assembled state. FIG. 4 is a plan view of a conventional door lock device, and FIG. 5 is an enlarged view of the main portion. 12... Striker, 13... Approach groove, 14...
...Latch, 15...Pole, 18...Retaining groove, 1
9...Engagement part, 20...Lock part, 30...Base plate, 31...Rear plate, 32...Front plate, 33...Resin case, 40...
Storage recess, 41... Preventing groove, 42... Rubber receiving surface, 43... Slide block, 43a... Holding groove, 43b... Tapered surface, 43c... Outer tapered surface, 44... Rubber block material, 44a... ...Dividing groove, 44b... Side pressing part, 44c... Deep pressing part, 44d... Tapered surface.

Claims (1)

[Scope of utility model registration request] A base play with a striker entry groove,
In the door lock device provided with a latch mechanism for holding or releasing the striker that has entered the striker entry groove, a slide block made of synthetic resin that has a striker holding groove on the striker entry groove and is movable in the direction in which the striker enters. A rubber block material is arranged between the rear outer periphery of this slide block and the rubber receiving surface formed on the base plate side, and a rubber block material is arranged on the left and right outer surfaces of the slide block and on the left and right outer surfaces of this slide block. The left and right inner surfaces of the abutting rubber block material are tapered surfaces that open toward the entrance side of the entry groove, and when the slide block is pushed by the striker and the rubber block material is deformed, the action of these tapered surfaces causes the slide block to move in both left and right directions. A striker steadying device for a door lock device, characterized in that it applies a reaction force from.