JPH0729248U - Lock device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a structure in which an elastic body for shock absorption in a locking device is easily assembled and which is excellent in use durability. [Structure] Since the fitting portion 8 of the bracket 7 that receives the fitting column portion 10 of the elastic body 6 for shock absorption is expanded in the bending input direction of the elastic body 6, the bending due to the engagement with the striker is prevented. Even if received, the fitting column portion 10 has an escape area, there is no fear of damage, and the fitting column portion 10 of the elastic body 6 can be elastically press-fitted into the front portion of the fitting portion 8 of the bracket 7. Since the groove 13 is opened, the elastic body 6 can be easily attached to the bracket 7 simply by sliding the elastic body 6 into the fitting portion 8 from the slit-shaped groove 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a locking device, and more particularly to a locking device for locking a vehicle seat, door, hood and the like.

[0002]

[Prior art]

 Conventionally, in a lock device having an elastic body as a shock absorption at the time of meshing, as shown in FIGS. The bracket (4) was attached to (3) so as to cover the elastic body (5). The elastic body (5) has a protrusion (5a) integrally formed on the upper part thereof, and this protrusion (5a) is generally fitted and fixed to the hole (4a) of the bracket (4). Is.

[0003]

[Problems to be solved by the device]

 In the conventional structure as described above, it is difficult to assemble due to the difference in hardness of the elastic body (5) (it is difficult to assemble a product with high hardness), and it is difficult to remove it if it is erroneously assembled. The process was increased. Further, the fitting between the protrusion (5a) of the elastic body (5) and the hole (4a) of the bracket is tight, and as shown in Fig. 9, damage is caused by the impact at the time of meshing with the opponent striker (1) each time. However, there was a problem that the fitting part was eventually worn or cracked, and sometimes the protrusion (5a) was broken from the main body of the elastic body (5). In such a case, it was eventually necessary to replace the entire locking device.

The present invention provides a locking device capable of overcoming the above-mentioned problems, that is, a structure in which an elastic body for shock absorption in the locking device is easily assembled and is excellent in use durability. The purpose is to provide.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a striker, a latch that engages with the striker to lock the striker, and an elastic body that absorbs an impact during engagement with the striker. In the locking device having the above, the fitting portion of the bracket for receiving the fitting pillar portion of the elastic body for shock absorption is expanded from the fitting pillar portion of the elastic body in the bending input direction of the elastic body. Further, a slit-shaped groove into which the fitting column portion of the elastic body can be elastically press-fitted is opened in the front portion of the fitting portion of the bracket. In the implementation, the shoulder that abuts the opening end of the slit-shaped groove of the bracket is formed in the elastic body, or the upper and lower parts of the fitting pillar portion of the elastic body, the upper wall that sandwiches the bracket from above and below, A lower wall should be provided.

[0006]

[Action]

 According to the present invention, the elastic body can be slid into the slit-shaped groove of the bracket from the front, and the fitting portion of the bracket has a margin in the bending input direction with respect to the fitting column portion of the elastic body. Since it is provided, there is an escape area even if it receives bending due to meshing with the striker.

[0007]

【Example】

 An embodiment of the present invention illustrated in FIGS. 1 to 6 will be described. This embodiment is a seat lock device for an automobile trunk through. The lock device shown in FIG. 1 is a device in which a striker similar to that shown by reference numeral (1) in FIG. 7 is engaged by a latch (2), and is provided with an elastic body (6) that absorbs the impact of this striker. There is.

The entire elastic body (6) is a conventional one as shown in a perspective view in FIG. 2 and a cross section taken along line III-III and a cross section taken along line IV-IV in FIG. 2 as shown in FIGS. 3 and 4. It has a larger size than that of the elastic body, and has a groove (14) at a height position of about three quarters. The upper wall above the groove (14) is designated by the reference numeral (11), and the lower wall below is also designated by the reference numeral (12). At the center of the groove (14), a cylindrical fitting column portion (10) is formed as shown in FIG. The front of the fitting column portion (10) is connected to the narrow portion (16) and is fused to the left and right shoulder portions (15).

The bracket (7) also has a shape different from that of the conventional bracket, and has a step portion corresponding to the above-mentioned groove (14) of the elastic body (6) in the center thereof, and the step portion of the elastic body (6) is provided there. The fitting hole (8) which is a fitting part to be fitted to the fitting pillar portion (10), the slit-shaped groove (13) continuing in front of the fitting hole (8), and the slit-shaped groove ( Left and right front edge portions (9) in front of 13) are formed.

As shown in FIG. 5, the fitting hole (8) is dimensioned to accommodate the fitting column portion (10) of the elastic body (6) and still leave a gap indicated by the distance d behind, and has a slit shape. The groove (13) has such a width that the narrow portion (16) of the elastic body (6) can be elastically press-fitted. Further, the front edge portion (9) of the bracket (7) is formed at a position where it comes into contact with the shoulder portion (15) of the elastic body (6) when the striker (1) collides, as shown in FIG. When (1) is not in contact, it is preferable to form a gap smaller than the gap d with the shoulder portion (15) of the elastic body (6).

When such an elastic body (6) is slid into the bracket (7) from the front as shown by an arrow in FIG. 2, it is set at the position shown in FIG. At this time, like the conventional elastic body, the end of the elastic body (6) is in contact with the end (7a) of the bracket (7), and the fitting column portion (10) is in the fitting hole of the bracket. It is housed in (8), but leaves a gap d as shown in FIG. At this time, the shoulder portion (15) of the elastic body has not reached the front edge portion (9) of the bracket. Further, the upper wall (11) and the lower wall (12) of the groove (14) of the elastic body are frictionally engaged with the upper and lower surfaces of the bracket (7).

When the striker (1) collides with the elastic body (6), the elastic body (6) is in contact with the end portion (7a) of the bracket (7) as in the conventional case. ) Is internally deformed to absorb this shock, but at that time, the fitting column portion (10) of the elastic body (6) can be retracted by the gap d, and the shoulder portion (15) of the elastic body (6) is Since it abuts on the front edge portion (9) of the bracket, no shearing force is exerted on this fitting column portion (10).

[0013]

[Effect of device]

 According to the present invention, since the elastic body can be slidably attached to the bracket which is previously attached to the lock device main body, the assembling is extremely easy, and only the elastic body can be replaced. Further, since the gap d is left between the fitting pillar portion and the fitting hole, even if the fitting pillar portion is bent due to a collision at the time of engagement of the striker, shearing force does not act on the fitting pillar portion. The durability can be secured.

Since the upper and lower walls near the fitting column portion of the elastic body are engaged with the upper and lower surfaces of the bracket, the elastic body is reliably held in the vertical direction as well, so that the elastic body is prevented from falling off. In particular, as in the configuration of the above embodiment, in the type in which there is no member supporting the elastic body (6) between the elastic body (6) and the latch (2), the striker (1) hits. This is effective in preventing the elastic body (6) from falling toward the latch (2) side when contacting. (Device of claim 3)

In particular, as in the configuration of the above embodiment, in the type in which the member supporting the elastic body (6) does not exist between the elastic body (6) and the latch (2), the striker (1) This is effective in preventing the elastic body (6) from falling toward the latch (2) side when it comes into contact with.

[Brief description of drawings]

FIG. 1 is a perspective view of a lock device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an elastic body and a bracket of the lock device of FIG. 1 in a developed state.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a cross-sectional view showing the relationship between the fitting column portion of the elastic body and the fitting hole of the bracket before the striker collision.

FIG. 6 is a cross-sectional view showing the relationship between the fitting column portion of the elastic body and the fitting hole of the bracket at the time of striker collision.

FIG. 7 is a perspective view of a conventional locking device.

8 is a perspective view showing the elastic body, the bracket and the cover plate of FIG. 7 in a developed state.

9 is a sectional view showing the behavior of the elastic body at the time of striker collision in the lock device of FIG.

[Explanation of symbols]

 (1) Striker (2) Latch (3) Cover plate (4) Bracket (4a) hole (5) Elastic body (5a) Projection (6) Elastic body (7) Bracket (8) Fitting hole (fitting part) (9) Front edge part (10) Fitting column part (11) Upper wall (12) Lower wall (13) Slit groove (14) Groove (15) Shoulder part (16) Narrow part

Claims (3)

[Scope of utility model registration request] 1. A locking device having a striker, a latch that engages and locks with the striker, and an elastic body that absorbs an impact at the time of meshing with the striker, in which a fitting column of the impact absorbing elastic body is provided. The fitting portion of the bracket that receives the portion is expanded from the fitting column portion of the elastic body in the bending input direction of the elastic body, and the fitting of the elastic body is performed on the front portion of the fitting portion of the bracket. A locking device characterized in that a slit-shaped groove into which a joint column portion can be elastically press-fitted is opened. 2. The lock device according to claim 1, wherein a shoulder portion that abuts an opening end portion of the slit-shaped groove of the bracket is formed on the elastic body. 3. The lock device according to claim 1, wherein an upper wall and a lower wall that sandwich the bracket from above and below are provided on the upper and lower portions of the fitting column portion of the elastic body.