CN214057325U

CN214057325U - Self-positioning automobile seat backrest and seat connecting structure

Info

Publication number: CN214057325U
Application number: CN202022550397.5U
Authority: CN
Inventors: 刘平; 黄立奇; 闭勤钦; 李奕
Original assignee: Faurecia Liuzhou Automotive Seating Co Ltd
Current assignee: Faurecia Liuzhou Automotive Seating Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-08-27
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a self-positioning automobile seat backrest and seat connecting structure, which relates to the technical field of automobile seats and comprises a backrest framework assembly and a cushion framework assembly, wherein the backrest framework assembly is respectively connected with a first cushion side plate and a second cushion side plate of the cushion framework assembly through a first backrest connecting plate and a second backrest connecting plate; the first backrest connecting plate and the first cushion side plate are respectively provided with a mounting hole and a fixing stud which are matched at the joint. The device provided by the utility model carry out prepositioning through fixing bolt, hole complex mode, need not additionally to increase the part, solved in the past not have location structure assembly inefficiency and for increasing prepositioning and increase the problem that the cost weakens seat skeleton intensity.

Description

Self-positioning automobile seat backrest and seat connecting structure

Technical Field

The utility model relates to a car seat technical field especially relates to a self-align car seat back and seat connection structure.

Background

At present, in order to realize the platformization and the low cost of the seat, most of seat frameworks adopt an assembly type structure with a seat cushion and a backrest which are separated, so that most of parts of the seat can realize the platformization and the modularization. The backrest and the cushion in the current market are assembled in a bolt and nut combined mode, namely, nuts are welded on the side plates of the cushion, round holes and long holes are formed in the connecting plate of the backrest, and then the bolt assembling mode is used, so that the structure without prepositioning or unstable positioning for the backrest and the cushion needs two workers to assemble in the assembling process of the two sides of the backrest, the assembling efficiency is low, and the cost is high; in the existing structures, corresponding positioning parts are additionally welded on the cushion or the backrest for pre-positioning, so that parts are additionally added to the structure, and the cost is correspondingly increased; some other are to punch the turn-ups on the cushion curb plate and fix a position, and some are to punch the convex closure on the cushion curb plate and utilize convex closure and back flange edge to carry out prepositioning, owing to punch out acute angle and breach in the sheet metal component is inside, have weakened the intensity of cushion curb plate, are unfavorable for the overall structure intensity of skeleton.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a self-align car seat back and seat connection structure carries out prepositioning through fixing bolt, hole complex mode, need not additionally to increase the part, has solved in the past and has not had location structure's assembly efficiency low and for increasing prepositioning and increase the problem that the cost weakens seat skeleton intensity.

In order to realize the purpose of the utility model, the technical scheme of the utility model is as follows:

a self-positioning automobile seat backrest and seat connecting structure comprises a backrest framework assembly and a seat cushion framework assembly, wherein the backrest framework assembly is respectively connected with a first seat cushion side plate and a second seat cushion side plate of the seat cushion framework assembly through a first backrest connecting plate and a second backrest connecting plate at the lower end of the backrest framework assembly, and the first seat cushion side plate and the second seat cushion side plate of the seat cushion framework assembly are connected with each other

The first backrest connecting plate, the second backrest connecting plate, the first cushion side plate and the second cushion side plate are perpendicular to the left-right direction of the seat, the inner surfaces of the first backrest connecting plate and the second backrest connecting plate are respectively attached to the outer surfaces of the first cushion side plate and the second cushion side plate, or the outer surfaces of the first backrest connecting plate and the second backrest connecting plate are respectively attached to the inner surfaces of the first cushion side plate and the second cushion side plate;

first back connecting plate is provided with first mounting hole, first fixing stud by preceding to the back in the junction, just the axis of first mounting hole, first fixing stud with first back connecting plate is perpendicular, first cushion curb plate be provided with by preceding to the back in the junction respectively with first mounting hole, first fixing stud matched with second fixing stud, second mounting hole, just the axis of second fixing stud, second mounting hole with first cushion curb plate is perpendicular.

Furthermore, a third mounting hole and a fourth mounting hole are formed in the joint of the second backrest connecting plate, and a first welding nut and a second welding nut which are matched with the third mounting hole and the fourth mounting hole respectively are arranged in the joint of the second cushion side plate.

Furthermore, the second mounting hole is a round hole, the first mounting hole is a long hole, and a long axis extension line of the first mounting hole penetrates through the axis of the first fixing stud.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the device provided by the utility model only needs one assembling staff to complete the assembly of the seat cushion framework assembly 2 and the backrest framework assembly 1 in production, which can improve the assembly efficiency and save the labor cost;

2. compared with the traditional structure that bolts and welding nuts are used on two sides of the cushion framework assembly and the backrest framework assembly, and the pre-positioning support is additionally welded, the pre-positioning effect of the cushion framework assembly and the backrest framework assembly can be realized without adding extra parts, so that the part cost is reduced;

3. the utility model provides a device sets up the form that fixing stud + mounting hole were set up to the first back connecting plate of fixing stud + mounting hole through first cushion curb plate and homonymy and realizes prepositioning, does not have the weakening influence to left/right curb plate of cushion and the left/right connecting plate of back, can guarantee the structural strength of seat skeleton well when realizing prepositioning.

Drawings

FIG. 1 is a schematic view of a seat frame assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a joint of a first backrest connecting plate according to an embodiment of the present invention;

FIG. 3 is a schematic view of a joint of a side plate of a first cushion according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a joint of a second backrest connecting plate according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a joint of a side plate of a second cushion in the embodiment of the present invention;

fig. 6 is a schematic view of a first backrest connecting plate slot according to an embodiment of the present invention.

In the figure, 1-backrest framework assembly, 11-first backrest connecting plate, 111-first mounting hole, 112-first fixing stud, 12-second backrest connecting plate, 121-third mounting hole, 122-fourth mounting hole, 2-cushion framework assembly, 21-first cushion side plate, 211-second fixing stud, 212-second mounting hole, 22-second cushion side plate, 221-first welding nut, 222-2 nd welding nut, 3-movable nut and 4-mounting bolt.

Detailed Description

In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 to 3, a self-positioning connecting structure for a car seat back and a car seat comprises a back frame assembly 1 and a seat cushion frame assembly 2, wherein the back frame assembly 1 is respectively connected with a first seat cushion side plate 21 and a second seat cushion side plate 22 of the seat cushion frame assembly 2 through a first back connecting plate 11 and a second back connecting plate 12 at the lower end of the back frame assembly, and the first seat cushion side plate and the second seat cushion side plate are respectively connected with the first back connecting plate 11 and the second back connecting plate 12 at the lower end of the back frame assembly, wherein

First back connecting plate 11, second back connecting plate 12, first cushion curb plate 21 and second cushion curb plate 22 are perpendicular with the seat left and right directions, just the internal surface of first back connecting plate 11 and second back connecting plate 12 laminates with the surface of first cushion curb plate 21 and second cushion curb plate 22 respectively mutually.

First back connecting plate 11 is provided with first mounting hole 111, first fixing stud 112 by preceding to the back in the junction, just first mounting hole 111, first fixing stud 112's axis with first back connecting plate 11 is perpendicular, first cushion curb plate 21 by preceding to the back in the junction be provided with respectively with first mounting hole 111, first fixing stud 112 matched with second fixing stud 211, second mounting hole 212, just the axis of second fixing stud 211, second mounting hole 212 with first cushion curb plate 21 is perpendicular.

The pre-positioning working principle of the connecting structure is as follows:

during assembly, the first fixing stud 112 of the first backrest connecting plate 11 is inserted into the second mounting hole 212 of the first cushion side plate 21, and the second fixing stud 211 of the first cushion side plate 21 is inserted into the first mounting hole 111 of the first backrest connecting plate 11, so that the seat back frame assembly 1 cannot rotate in the front-back direction and cannot move in the up-down direction. In addition, on the premise of ensuring that the first fixing stud 112 and the first mounting hole 111 on the first backrest connecting plate 11 do not fall out of the second mounting hole 212 and the second fixing stud 211 on the first cushion side plate 21 respectively, the distance and the angle of the backrest frame assembly 1 in the left-right direction are adjusted, the inner surface of the second backrest connecting plate 12 is attached to the outer surface of the second cushion side plate 22 on the cushion frame assembly 2, the inner surface of the first backrest connecting plate 11 is correspondingly attached to the outer surface of the first cushion side plate 21, after the backrest frame assembly 1 is assembled with the cushion frame assembly 2, the first backrest connecting plate 11 is arranged on the outer side of the first cushion side plate 21, and the second backrest connecting plate 12 is arranged on the outer side of the second cushion side plate 22, so that the backrest cannot move in the left-right direction. Therefore, the first fixing stud 112 and the second fixing stud 211 are respectively matched with the second mounting hole 212 and the plug bush of the first mounting hole 111, and the inner surfaces of the first backrest connecting plate 11 and the second backrest connecting plate 12 are respectively matched with the outer surfaces of the first cushion side plate 21 and the second cushion side plate 22 in a fitting manner, so that the degrees of freedom in six directions are controlled, and the backrest framework assembly 1 achieves good prepositioning.

In other embodiments, the outer surfaces of the first backrest connecting plate 11 and the second backrest connecting plate 12 may be respectively attached to the inner surfaces of the first cushion side plate 21 and the second cushion side plate 22, so as to ensure that the backrest cannot move in the left-right direction, and thus the backrest frame assembly 1 can be pre-positioned.

In summary, the device provided by the utility model can assemble the seat cushion frame assembly 2 and the backrest frame assembly 1 by only one assembling worker in production, thereby improving the assembling efficiency and saving the labor cost;

compared with the traditional structure that bolts and welding nuts are used on two sides of the cushion framework assembly and the backrest framework assembly, and the pre-positioning support is additionally welded, the pre-positioning effect of the cushion framework assembly and the backrest framework assembly can be realized without adding extra parts, so that the part cost is reduced;

the utility model provides a device sets up the form that fixing stud + mounting hole were set up to the first back connecting plate of fixing stud + mounting hole through first cushion curb plate and homonymy and realizes prepositioning, does not have the weakening influence to left/right curb plate of cushion and the left/right connecting plate of back, can guarantee the structural strength of seat skeleton well when realizing prepositioning.

Preferably, as shown in fig. 4 and 5, a third mounting hole 121 and a fourth mounting hole 122 are formed at a joint of the second backrest connecting plate 12, and a first weld nut 221 and a second weld nut 222 that are respectively engaged with the third mounting hole 121 and the fourth mounting hole 122 are formed at a joint of the second cushion side plate 22. Taking two mounting bolts 4, penetrating through the third mounting hole 121 and the fourth mounting hole 122, pre-mounting the two mounting bolts in the first welding nut 221 and the second welding nut 222 respectively, and screwing the two mounting bolts with a wrench; two movable nuts 3 are respectively pre-installed on the first fixing stud 112 and the second fixing stud 211 and are screwed by a spanner; after the pre-positioning is completed, torque is respectively applied to the two movable nuts 3 and the two mounting bolts 4 by using a torque wrench, so that the backrest framework assembly 1 and the cushion framework assembly 2 are firmly connected.

Preferably, the second mounting hole 212 is a round hole, which is used as a positioning hole; the first mounting hole 111 is formed as a long hole, the radial direction (D3 direction) of the first mounting hole is used for accurately positioning the rotation direction of the backrest frame assembly 1 relative to the seat cushion frame assembly 2, and the extension line of the long axis (L direction) of the first mounting hole 111 passes through the axis of the first fixing stud 112, so that the mounting is convenient, as shown in fig. 6.

Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A self-positioning automobile seat backrest and seat connecting structure comprises a backrest framework assembly (1) and a seat cushion framework assembly (2), wherein the backrest framework assembly (1) is respectively connected with a first seat cushion side plate (21) and a second seat cushion side plate (22) of the seat cushion framework assembly (2) through a first backrest connecting plate (11) and a second backrest connecting plate (12) at the lower ends of the backrest framework assembly, and the first seat cushion side plate and the second seat cushion side plate (22) are connected with each other

The first backrest connecting plate (11), the second backrest connecting plate (12), the first cushion side plate (21) and the second cushion side plate (22) are perpendicular to the left-right direction of the seat, the inner surfaces of the first backrest connecting plate (11) and the second backrest connecting plate (12) are respectively attached to the outer surfaces of the first cushion side plate (21) and the second cushion side plate (22), or the outer surfaces of the first backrest connecting plate (11) and the second backrest connecting plate (12) are respectively attached to the inner surfaces of the first cushion side plate (21) and the second cushion side plate (22);

first back connecting plate (11) is provided with first mounting hole (111), first fixing stud (112) by preceding to the back in the junction, just the axis of first mounting hole (111), first fixing stud (112) with first back connecting plate (11) is perpendicular, first cushion curb plate (21) by preceding to the back in the junction be provided with respectively with first mounting hole (111), first fixing stud (112) matched with second fixing stud (211), second mounting hole (212), just the axis of second fixing stud (211), second mounting hole (212) with first cushion curb plate (21) is perpendicular.

2. The self-positioning car seat back and seat connecting structure according to claim 1, wherein the second back connecting plate (12) is provided at a joint with a third mounting hole (121) and a fourth mounting hole (122), and the second cushion side plate (22) is provided at a joint with a first weld nut (221) and a second weld nut (222) respectively fitted with the third mounting hole (121) and the fourth mounting hole (122).

3. The self-positioning car seat back and seat connecting structure according to claim 1, wherein the second mounting hole (212) is provided as a circular hole, the first mounting hole (111) is provided as an elongated hole, and a long axis extension line of the first mounting hole (111) passes through an axis of the first fixing stud (112).