CN215474620U

CN215474620U - Seat slide rail locking means with strengthening mechanism

Info

Publication number: CN215474620U
Application number: CN202122371583.7U
Authority: CN
Inventors: 崔荣日
Original assignee: Wendeng Dashi Auto Parts Co ltd
Current assignee: Wendeng Dashi Auto Parts Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-01-11
Anticipated expiration: 2031-09-28

Abstract

According to the seat slide rail locking device with the reinforcing mechanism, in the seat slide rail locking device adopting a track lock with a three-pin structure, the resistance of the front end of a lower guide rail can be increased to the maximum extent to meet the specified strength requirement under the condition that reinforcing materials or supplementary materials are not added independently by changing the structure of a fastening hole inserted into a lock pin or the structure of the lock pin inserted into the fastening hole; the two ends of the fastening hole which are contacted with the lock pin are provided with inclined contact surfaces which are contacted with two points of the lock pin, so that the strength of the front end of the fastening hole of the lower guide rail is maximized when a collision accident happens, and the strength requirement is met; in addition, the lock pin inserted into the lower guide rail fastening hole is integrally provided with the reinforcing bulge protruding outwards, so that the surface pressure generated when the inner circumferential surface of the lower guide rail fastening hole is contacted is dispersed when a collision accident occurs, and the strength requirement is met.

Description

Seat slide rail locking means with strengthening mechanism

Technical Field

The utility model relates to a seat slide rail locking device, in particular to a seat slide rail locking device with a reinforcing mechanism.

Background

Generally, an automobile seat is composed of a seat back for supporting the upper body load of an indoor passenger and a seat cushion for supporting the lower body load such as the buttocks and thighs. In order to effectively utilize the body shape and the indoor space of a passenger, the automobile seat can slide back and forth in a certain section of the automobile body, and the seat slide rail plays a role. The seat slide rail generally comprises a lower slide rail fixed on a metal plate of an automobile floor and arranged in the length direction of an automobile body, and an upper slide rail which slides along the lower slide rail and is fixed with the lower end of a seat cushion.

After the upper slide rail moves for a certain interval along the lower slide rail, the position of the upper slide rail is limited by a fixed position. To this end, the seat slide is provided with a locking device for fixing the position of the upper slide relative to the lower slide.

A common seat slide rail locking device in the market at present comprises a movable slide rail fixed on a seat, a fixed slide rail fixed on a metal plate of an automobile bottom plate, and a locking mechanism for executing locking and non-locking, wherein the movable slide rail can reciprocate on the fixed slide rail, the locking mechanism is arranged between the movable slide rail and the fixed slide rail, a plurality of locking holes are arranged on the movable slide rail and the fixed slide rail, a plurality of locking columns are arranged on the locking mechanism, when the seat is moved to a proper position according to requirements, the locking columns on the locking mechanism are inserted into the locking holes to play a role in fixing and supporting the seat, but the mode of fixing the seat by matching the locking holes and the locking columns cannot provide satisfactory firm constraint force, when external force such as collision or rear-end collision of the vehicle is applied, the phenomenon that the locking columns are separated from the locking holes easily occurs, therefore, the problem that the movable sliding rail and the fixed sliding rail are mutually constrained is solved, and additional accidents are caused by secondary collision.

Disclosure of Invention

For solving above problem, the application provides a seat slide rail locking means with strengthening mechanism, aims at solving fixed seat locking insecure, appears locking post easily and breaks away from the locking hole, causes the problem that secondary collision leads to additional accident to take place.

An embodiment of this application provides a seat slide locking device with strengthening mechanism, is provided with the upper guideway of fixing in the seat lower part, fixes the lower rail on car floor panel beating, fixes the track lock of lower rail required position with the upper guideway, its characterized in that, be provided with the fastening hole on the lower rail, the track lock is three round pin structure, has at least one stop pin to insert in the fastening hole, the fastening hole is provided with the slope contact surface that contacts with the stop pin at length direction both ends.

Preferably, the inclined contact surfaces are symmetrically arranged about a longitudinal central axis of the fastening hole.

Another embodiment of the present application provides a seat slide locking device with a reinforcement mechanism, which is provided with an upper rail fixed on the lower portion of a seat, a lower rail fixed on a metal plate of a vehicle floor, and a rail lock for fixing the upper rail to a position required by the lower rail.

Preferably, the reinforcing protrusion is located in a direction in which the locking pins cross along the longitudinal central axis of the fastening hole.

Preferably, the fastening hole is provided at both ends in a length direction with inclined contact surfaces contacting the locking pin.

The utility model has the beneficial effects that:

Drawings

FIG. 1 is a schematic view of the overall assembly of the present application;

FIG. 2 is an exploded view of the present application;

FIG. 3 is a schematic structural diagram of a track lock according to the present application;

FIG. 4 is a bottom view of the locking pin engaging the lower track fastening hole in the first embodiment of the present application;

FIG. 5 is a bottom view of the fastening hole fitting of the lower rail of the locking pin according to the second embodiment of the present application;

the symbols in the drawings illustrate that:

10. an upper guide rail; 12. a through hole; 14. an opening part;

20. a lower guide rail; 22. a fastening hole; 24. an inclined contact surface; 26. an extension portion;

100. a track lock; 110. mounting a bracket; 120. a release lever; 130. a return spring; 140. a locking pin; 150. a compression spring;

142. and a reinforcing protrusion.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present application and are not intended to limit the present application, and the terms described herein are terms defined in consideration of functions in the present embodiment and may be different according to intention or custom of a user or an operator, and thus the definitions of the terms should be expressed in the entire specification based on technical contents, on the other hand, the embodiments are merely exemplary matters of components set forth in claims and do not limit the scope of the present invention, and the scope of the claims should be interpreted based on technical ideas throughout the specification.

As shown in fig. 1 and 2, a seat slide lock device with a reinforcement mechanism is provided with an upper rail 10 fixed to a lower portion of a seat and a lower rail 20 fixed to a sheet metal of a floor of an automobile, and a rail lock 100 that can be mounted on the upper rail 10 and fixes the upper rail 10 to a desired position of the lower rail 20.

The upper rail 10 is formed in a shape of a letter "convex", and a plurality of through holes 12 are formed along the top in the length direction of the upper rail 10, and an opening portion 14 for installing the rail lock 100 is formed at the side of the upper rail 10.

The lower rail 20 is in a concave shape, and a plurality of fastening holes 22 are formed in the bottom of the lower rail 20 in the length direction.

The upper rail 10 is slidably coupled to the lower rail 20, so that the upper rail 10 can reciprocate in the longitudinal direction of the lower rail 20, i.e., the upper rail 10 is installed to be slidably supported along the lower rail 20.

As shown in fig. 2 and 3, the rail lock 100 is provided with a mounting bracket 110 fixable to the upper rail 10, a release lever 120 hinged to the mounting bracket 110, a return spring 130 for elastically supporting the release lever 120, and a locking pin 140 having a triple pin structure, the locking pin 140 being provided with a compression spring 150, the locking pin 140 being insertable into the fastening hole 22 of the lower rail 20 in accordance with the vertical rising and falling of the release lever 120 in accordance with the rotation of the release lever 120, the compression spring 150 providing an elastic force to insert the locking pin 140 into the fastening hole 22 of the lower rail 20.

As shown in fig. 1, which is a schematic view of the upper rail 10, the lower rail 20, and the rail lock 100 assembled together, the release lever 120 is exposed to the outside through the opening 14 of the side of the upper rail 10, so that the release lever 120 can be easily lifted or pressed down to adjust the relative position of the upper rail 10 on the lower rail 20.

In order to make the locking pin 140 fit into the fastening hole 22 of the lower rail 20 more firmly, as shown in fig. 4, a bottom view of the locking pin 140 fitting into the fastening hole 22 of the lower rail 20 is provided to describe in detail a seat slide lock device with a reinforcement mechanism according to a first embodiment of the present application.

The fastening hole 22 is formed to penetrate the lower rail 20 in a vertical direction, and both ends of the fastening hole 22 in a longitudinal direction in contact with the locking pin 140 are provided with inclined contact surfaces 24 for making two-point contact "X" with the locking pin 140.

In this case, preferably, the inclined contact surfaces 24 are located at both ends of the fastening hole 22, symmetrically disposed about the longitudinal central axis of the fastening hole 22, in other words, the inclined contact surfaces 24 have a structure symmetrically disposed about the axis of the locking pin 140 at the same inclination angle.

Compared with the fastening holes 22 without the inclined contact surfaces 24, the fastening holes 22 with the inclined contact surfaces 24 can achieve the maximum shear rigidity of the contact with the locking pins 140 when a collision accident occurs due to the extension portions 26 (the hatched portions in fig. 4) provided at the inclined contact surfaces 24, and thus can satisfy the specified strength standard even if the distance d between the adjacent fastening holes 22 is the same as the length of the prior art.

That is, in the first embodiment of the present application, in the state where the interval d between the fastening holes 22 is set to be the same as the related art, the shear rigidity is improved by the extension portion 26 set by providing the inclined contact surface 24, and the interval d between the fastening holes 22 can be increased to twice "e", and the shear rigidity can be further improved. In other words, since the entire area of the fastening hole 22 is the range including the extension part 26, in the fastening hole 22 according to the first embodiment, the locking pin 140 and the inclined contact surface 24 are in contact with "X" at two points, the distance d can be further increased by twice "e" by the extension part 26, so that the shear rigidity of the fastening hole 22 can be further improved.

As shown in fig. 5, a bottom view of the locking pin 140 engaged with the fastening hole 22 of the lower rail 20 is provided to describe in detail a seat slide lock device with a reinforcement mechanism according to a second embodiment of the present application.

The locking pin 140 is provided with a reinforcing protrusion 142 protruding outward in a direction crossing the longitudinal central axis of the fastening hole 22.

In this case, since the reinforcing protrusions 142 can provide an effect of enlarging the cross-sectional area of the locking pin 140 in the direction intersecting the longitudinal central axis of the fastening hole 22, it is possible to satisfy the prescribed strength standard even if the interval d between the fastening holes 22 is set to be the same as the related art by increasing the surface pressure when contacting the inner circumferential surface of the fastening hole 22 when a collision accident occurs.

In addition, in the second embodiment of the present application, the fastening hole 22 has an inclined contact surface 24 for making two-point contact "X" with the locking pin 140 in the first embodiment of the present application.

That is, the inclined contact surfaces 24 are also positioned at portions vertically symmetrical with respect to the longitudinal central axis of the fastening hole 22, and preferably, the locking pin 140 has a structure formed at the portions symmetrical with respect to the axial center of the locking pin 140 at the same inclination angle.

The above description is only for illustrating the technical idea of the present application, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention, and the above description is only a preferred embodiment of the present application, and is not intended to limit the present application, so any modification, equivalent replacement, and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A seat slide rail locking device with a reinforcing mechanism is provided with an upper guide rail fixed on the lower portion of a seat, a lower guide rail fixed on a metal plate of a bottom plate of an automobile, and a rail lock for fixing the upper guide rail to the position required by the lower guide rail.

2. The seat track lock device with the reinforcement mechanism of claim 1, wherein the inclined contact surfaces are symmetrically arranged with respect to a longitudinal center axis of the fastening hole.

3. A seat slide rail locking device with a reinforcing mechanism is provided with an upper guide rail fixed on the lower portion of a seat, a lower guide rail fixed on a metal plate of an automobile bottom plate, and a rail lock for fixing the upper guide rail to the position required by the lower guide rail.

4. The seat track locking device with the reinforcement mechanism of claim 3, wherein the reinforcement protrusion is located in a direction in which the locking pins cross along a longitudinal center axis of the fastening hole.

5. The seat track locking device with the reinforcement mechanism according to claim 3, wherein the fastening hole is provided with an inclined contact surface at both ends in the length direction to contact with the locking pin.

6. The seat track lock device with the reinforcement mechanism of claim 5, wherein the inclined contact surfaces are symmetrically arranged with respect to a longitudinal center axis of the fastening hole.