CN111516560B

CN111516560B - Sliding device

Info

Publication number: CN111516560B
Application number: CN202010348096.6A
Authority: CN
Inventors: 封庆伟; 朱斐翔; 陈岳云; 唐勋; 陶惠家
Original assignee: Yanfeng International Seating Systems Co Ltd
Current assignee: Yanfeng Adient Seating Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-12-17
Anticipated expiration: 2040-04-28
Also published as: CN111516560A

Abstract

The invention relates to a sliding device, which comprises a guide plate, a sliding block, a sliding rod and a fastener, wherein the sliding block and the sliding rod are matched and fixedly arranged on the sliding plate through the fastener, the guide plate is provided with a sliding groove extending along the sliding direction, the sliding plate is slidably arranged on the guide plate through the sliding rod at least partially extending into the sliding groove, and the surfaces of the sliding block and the sliding rod are always in line contact with the surface of the guide plate. According to the sliding device, the linear motion of the sliding plate on the guide plate is realized through the sliding block and the sliding rod, the structure is simple, the section is lower, the number of parts is less, the weight is lighter, the cost is low, in addition, the manufacturing error is eliminated through a simple mode of keeping the linear contact between the sliding block and the sliding rod, and the common problems of gaps and clamping stagnation in the prior art are solved.

Description

Sliding device

Technical Field

The present invention relates to a vehicle seat, and more particularly, to a sliding device.

Background

In order to achieve linear movement, the car seat is equipped with a slide rail. The sliding rail in the prior art includes an outer rail and an inner rail, for example, CN110654276A, an outer rail cavity is formed by the width of the outer rail towards both sides, and the width of the inner rail towards both sides is located in the outer rail cavity respectively, because two rows of steel balls and locking mechanisms are to be accommodated, after the sliding rail is assembled, the inner rail and the outer rail have larger cross-sectional dimensions in both width direction (Y direction) and height direction (Z direction), as shown in fig. 10. In order to control and eliminate the width and height direction clearance, the upper and lower two pairs of slide rail totally 4 groups of balls (or rollers), lead to spare part many, the structure is complicated, and the cost is high. The contact point of the ball and the inner and outer rails is dynamically changed in the assembling and moving processes, so that the gap is difficult to stabilize, and the phenomenon of shaking abnormal sound caused by overlarge gap or clamping stagnation caused by undersize gap often occurs in use.

Disclosure of Invention

The invention provides a sliding device, which aims to solve the problems that a sliding rail in the prior art is large in section, many in parts and unstable in gap.

The sliding device comprises a guide plate, a sliding block, a sliding rod and a fastener, wherein the sliding block and the sliding rod are matched and fixedly arranged on the sliding plate through the fastener, the guide plate is provided with a sliding groove extending along the sliding direction, the sliding plate is slidably arranged on the guide plate through the sliding rod at least partially extending into the sliding groove, and the surfaces of the sliding block and the sliding rod are always in line contact with the surface of the guide plate.

Preferably, the slider includes first and second opposing gate structures including first and second spherical protrusions and first bridge-shaped protrusions, respectively, wherein the first bridge-shaped protrusion is disposed between the first and second spherical protrusions to connect the first and second spherical protrusions so as to be in line contact with the first surface of the guide plate at opposite sides of the chute through the protrusions.

Preferably, the slide bar comprises first and second opposing beam structures comprising third, fourth and second spherical protrusions, respectively, wherein the second bridge protrusion is disposed between the third and fourth spherical protrusions to connect the third and fourth spherical protrusions such that line contact is maintained with the second surface of the guide plate at opposite sides of the slide slot through the protrusions.

Preferably, the first and second gate structures of the slider are directly opposite to the first and second beam structures of the slide bar, respectively.

Preferably, the slide plate is provided with a mounting hole, the slide block further comprises a first substrate arranged between the first door structure and the second door structure, the first substrate is provided with a first through hole, the slide rod further comprises a second substrate arranged between the first beam structure and the second beam structure, the second substrate is provided with a second through hole, the fastener comprises a screw and a nut, and the screw sequentially penetrates through the first through hole, the second through hole and the mounting hole and then is matched with the nut to realize the mounting and fixing of the slide block and the slide rod on the slide plate.

Preferably, the sliding block further comprises two hooks located at two opposite sides of the first through hole, the sliding rod comprises a sleeve surrounding the second through hole, and a convex part is arranged on the outer side of the sleeve and matched with the hooks.

Preferably, the guide plate comprises a guide plate envelope surface, the slide plate comprises a slide plate envelope surface, and the sliding device further comprises rolling members disposed between the guide plate envelope surface and the slide plate envelope surface.

Preferably, the rolling member comprises a first ball assembly, a retaining rod and a second ball assembly, wherein the retaining rod is connected between the first ball assembly and the second ball assembly.

Preferably, the first steel ball assembly and the second steel ball assembly respectively comprise a plurality of steel balls, and the diameter of the holding rod is two thirds of the diameter of the steel balls.

Preferably, the sliding device comprises four sliding blocks and two symmetrically arranged sliding rods, each sliding rod extends along the sliding direction, and two ends of each sliding rod are respectively matched with the two sliding blocks.

According to the sliding device, the linear motion of the sliding plate on the guide plate is realized through the sliding block and the sliding rod, the structure is simple, the section is lower, the number of parts is less, the weight is lighter, the cost is low, in addition, the manufacturing error is eliminated through a simple mode of keeping the linear contact between the sliding block and the sliding rod, and the common problems of gaps and clamping stagnation in the prior art are solved. Also, the sliding apparatus according to the present invention can be applied to both lateral movement of the seat and forward and backward sliding of the bowl.

Drawings

Fig. 1 is a schematic view of the overall structure of a sliding apparatus according to a preferred embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken along B-B of FIG. 1;

FIG. 5 is a cross-sectional view taken along C-C of FIG. 1;

FIG. 6 is a cross-sectional view taken along D-D of FIG. 1;

FIG. 7 is a schematic structural view of the slider of FIG. 1;

FIG. 8 is a schematic structural view of the slide bar of FIG. 1;

FIG. 9 is an assembled schematic view of the sliding device of FIG. 1;

fig. 10 is a schematic view of a prior art slide rail.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a sliding apparatus according to a preferred embodiment of the present invention includes a guide plate 1, a slide plate 2, a slider 3, a slider bar 4, and a fastener 5, wherein the slider 3 and the slider bar 4 are engaged and mounted on the slide plate 2 by the fastener 5, and the slide plate 2 is slidably mounted on the guide plate 1. In this embodiment, the sliding device comprises four sliding blocks 3 and two symmetrically arranged sliding rods 4, each sliding rod 4 extends along the sliding direction F (transverse direction) and two ends of each sliding rod 4 are respectively matched with the two sliding blocks 3. In particular, the sliding plate 2 has a transverse extension substantially equal to the transverse extension of the sliding bar 4. In this embodiment, the guide plate 1 and the slide plate 2 are both made of metal, the slider 3 and the slide bar 4 are both made of plastic, and the fastener 5 includes a screw 51 and a nut 52 which are engaged with each other.

As shown in fig. 2, the slide plate 1 includes two slide grooves 11 spaced apart longitudinally, and each slide groove 11 extends laterally over a length greater than the lateral extension of the slide bar 4. The guide plate 1 further comprises two guide plate envelope surfaces 12 arranged on the inner side of the two runners 11, longitudinally spaced apart from each other, each guide plate envelope surface 12 extending transversely. The skid plate 2 includes two longitudinally spaced sets of mounting holes, each set including two laterally spaced mounting holes 21. The slide 1 further comprises two slide envelope surfaces 22 arranged inside the two sets of mounting holes, longitudinally spaced from each other, each slide envelope surface 22 extending transversely. The slide arrangement further comprises two rolling members 6, each rolling member 6 being arranged between the guide plate envelope surface 12 and the slide plate envelope surface 22 as a medium for the slide plate 2 to slide on the guide plate 1. As shown in fig. 5, the rolling member 6 includes a first steel ball assembly 61, a retaining rod 62, and a second steel ball assembly 63, wherein the first steel ball assembly 61 and the second steel ball assembly 63 include three steel balls, respectively, and the retaining rod 62 is connected between the first steel ball assembly 61 and the second steel ball assembly 63. In particular, the diameter of the retaining rod 62 is approximately two-thirds of the diameter of the steel ball.

As shown in fig. 7, the slider 3 includes a first substrate 31, a first gate structure 32, and a second gate structure 33, wherein the first gate structure 32 and the second gate structure 33 protrude from opposite ends of the first substrate 31 perpendicular to the first substrate 31. The first and

second gate structures

32 and 33 engage the bottom surface of the fence 1 on opposite sides of the runner 11 of the fence 1, respectively (as shown in fig. 6). In particular, the first and

second door structures

32 and 33 include first and second spherical protrusions 3a and 3b and a first bridge-shaped protrusion 3c, respectively, wherein the first bridge-shaped protrusion 3c is disposed between the first and second spherical protrusions 3a and 3b to connect the first and second spherical protrusions 3a and 3b, so that an anti-lock function is implemented by the

protrusions

3a, 3b, 3c always maintaining line contact with the bottom surface of the guide plate 1 (as shown in fig. 6). In addition, the slider 3 further includes two hooks 34, the first substrate 31 has a first through hole 311, and the hooks 34 are disposed on two opposite sides of the first through hole 311.

As shown in fig. 8, the slider 4 comprises a second base plate 41, a first beam structure 42 and a second beam structure 43, wherein the first beam structure 42 and the second beam structure 43 extend from opposite ends of the second base plate 41 perpendicularly to the second base plate 41. In the present embodiment, the first beam structure 42 and the second beam structure 43 each comprise four beams which engage the top surface of the runner 1 on opposite sides of the runner 11 of the runner 1 (as shown in fig. 6). In particular, the first and

second beam structures

42, 43 of the two ends of the sliding bar 4 are respectively opposite to the first and

second gate structures

32, 33 of the two sliders 3. In particular, each beam of the first and

second beam structures

42 and 43 comprises a third spherical protrusion 4a, a fourth spherical protrusion 4b, and a second bridge protrusion 4c, respectively, wherein the second bridge protrusion 4c is disposed between the third spherical protrusion 4a and the fourth spherical protrusion 4b to connect the third spherical protrusion 4a and the fourth spherical protrusion 4b, thereby achieving an anti-lock function by the

protrusions

4a, 4b, 4c always maintaining line contact with the top surface of the fence 1 (as shown in fig. 6). In addition, the slide 4 further includes a bush 44 between the two beams at the end side, and the second substrate 41 has a second through hole 411, and the bush 44 is provided around the second through hole 411. The outside of the sleeve 44 has a projection 44a which engages with the catch 34 of the slider 3 (see fig. 7).

The installation process of the sliding device and the clearance control principle thereof will be described in detail below with reference to fig. 9:

s1, mounting the slide bar 4 to the runner 1, in particular, with the sleeve 44 of the slide bar 4 protruding from the runner 11 (see fig. 2) of the runner 1, the

beam structures

42, 43 of the slide bar 4 engaging the top surface (see fig. 6) of the runner 1 on opposite sides of the runner 11 of the runner 1;

s2, mounting the sliding block 3 on the sliding rod 4, specifically, the sleeve 44 of the sliding rod 4 extends between the two hooks 34 of the sliding block 3 and is clamped by the hooks 34 to the convex part 44a (see fig. 8) outside the sleeve 44, and the

door structures

32, 33 of the sliding block 3 are respectively matched with the bottom surface (see fig. 6) of the guide plate 1 at two opposite sides of the sliding chute 11 of the guide plate 1;

s3, inserting the screw 51 into the slider 3 and the slide bar 4, specifically, the screw 51 sequentially passes through the first through hole 311 (see fig. 7) of the first base plate 31 of the slider 3 and the sleeve 44 of the slide bar 4, and protrudes from the second through hole 411 (see fig. 8) of the second base plate 41 of the slide bar 4;

s4, mounting the slide board 2 on the slide bar 4 and the screw 51, specifically, the slide board 2 is placed above the slide bar 4, and the end of the screw 51 protruding from the second through hole 411 of the second base plate 41 of the slide bar 4 protrudes from the mounting hole 21 (see fig. 2) of the slide board 2;

s5, the nut 52 is mounted to the screw 51, specifically, the nut 52 is mounted to the end of the screw 51 protruding from the mounting hole 21 of the slide plate 2.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.

Claims

1. A sliding device is characterized by comprising a guide plate, a sliding block, a sliding rod and a fastener, wherein the slide block and the slide rod are matched and fixed on the slide plate through a fastener, the guide plate is provided with a slide groove extending along the sliding direction, the slide plate is slidably arranged on the guide plate through the slide rod at least partially extending into the slide groove, the surfaces of the slide block and the slide rod are always in line contact with the surface of the guide plate, the slide block comprises a first door structure and a second door structure which are opposite, the first door structure and the second door structure respectively comprise a first spherical bulge, a second spherical bulge and a first bridge-shaped bulge, wherein the first bridge-shaped bulge is arranged between the first spherical bulge and the second spherical bulge to connect the first spherical bulge and the second spherical bulge, so that line contact is always maintained with the first surface of the guide plate on opposite sides of the slide groove by the projections.

2. The slide of claim 1, wherein the slide bar includes first and second opposing beam structures including third, fourth, and second spherical protrusions, respectively, wherein the second bridge protrusion is disposed between the third and fourth spherical protrusions to connect the third and fourth spherical protrusions such that line contact is maintained with the second surface of the guide plate at opposing sides of the slide channel by the protrusions.

3. The slide of claim 2, wherein the first and second gate structures of the slider bar are aligned with the first and second beam structures of the slide bar, respectively.

4. The sliding device of claim 2 wherein the slider has a mounting hole, the slider further comprises a first base plate disposed between the first gate structure and the second gate structure, the first base plate has a first through hole, the slider further comprises a second base plate disposed between the first beam structure and the second beam structure, the second base plate has a second through hole, the fastener comprises a screw and a nut, and the screw sequentially passes through the first through hole, the second through hole and the mounting hole and then cooperates with the nut to fix the slider and the slider to the slider.

5. The sliding motion device of claim 4 wherein the slider further comprises two hooks on opposite sides of the first aperture, and the slider comprises a sleeve disposed around the second aperture, the sleeve having a protrusion on an outer side thereof, the protrusion engaging the hooks.

6. The slide of claim 1, wherein the guide plate includes a guide plate envelope surface and the slide plate includes a slide plate envelope surface, the slide further comprising a rolling member disposed between the guide plate envelope surface and the slide plate envelope surface.

7. The slide of claim 6, wherein the rolling element comprises a first ball assembly, a retaining rod, and a second ball assembly, wherein the retaining rod is connected between the first ball assembly and the second ball assembly.

8. The slide of claim 7, wherein the first and second ball assemblies each comprise a plurality of balls, and the diameter of the retainer rod is two-thirds of the diameter of the ball.

9. Sliding device according to claim 1, wherein the sliding device comprises four sliding blocks and two symmetrically arranged sliding rods, each sliding rod extending in the sliding direction and having two ends engaging with the two sliding blocks, respectively.