Seat backrest structure with side wings

Abstract

The utility model discloses a seat backrest structure with side wings, which comprises a backrest fan, a backrest foam with side wings at two ends, side wing support type steel wires and a backrest surface sleeve matched with the backrest foam, the side wing support type steel wires are connected end to end to form a rectangular structure in a surrounding manner, are integrally foamed in the backrest foam and extend vertically, and the backrest surface sleeve is connected with the side wing support type steel wires. The two ends of the side wing supporting type steel wire correspond to the positions of two side wings of the backrest foam, the two ends of the side wing supporting type steel wire are arched forwards to achieve supporting of the side wings, a bottom cross beam of the side wing supporting type steel wire corresponds to the pre-installation position of a row of C-shaped nails used for fixing the backrest face cover, and the row of C-shaped nails are arranged on the bottom cross beam of the side wing supporting type steel wire in a driving mode to fix the lower end of the backrest face cover. According to the utility model, the side wings can be effectively supported, the side wings can be always kept in a good form when a user sits on the seat, and when the backrest foam collapses to a certain extent under the pressure of a human body, the side wing supporting steel wires can float along with the backrest foam, so that foreign body sensation can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially relates to a seat backrest structure with side wings. BACKGROUND

[0002] In the field of modern automobile seat design and manufacturing, the comfort, support and functionality of seat backrest structure have always been crucial factors. With the continuous improvement of consumer requirements for seat use experience, the design of seat backrest structure is also continuously innovated and optimized. In the seat backrest structure, the side wing part plays a key role in providing lateral support to the human body and enhancing the sense of seat wrapping.

[0003] The traditional side wing support type design of seat backrest has many limitations. The traditional side wing support type steel wire usually adopts a two-part structure independent on the left and right, corresponding to the side wings on both sides of the backrest. This independently designed side wing support type steel wire needs to be fixed on the backrest framework by welding, and then buried in the backrest foam. However, this traditional design exposes a series of problems in actual application. When the backrest foam is subjected to a certain degree of collapse under the pressure of the human body, the side wing support type steel wire is likely to cause the user to feel obvious foreign body sensation. This is because the relative position between the steel wire and the human body changes during the deformation of the backrest foam under stress, and the hard surface of the steel wire directly contacts the human body, which destroys the soft and comfortable touch of the seat backrest and reduces the comfort of the ride. In addition, in the traditional seat backrest structure, when the nailing fixing operation of the lower end of the backrest cover is performed, a complex installation bracket needs to be designed additionally. This additional installation bracket not only increases the overall weight of the seat backrest, but also makes the internal structure of the seat more complex and increases the production cost. SUMMARY

[0004] In view of the problems existing in the prior art, the utility model aims to provide a seat backrest structure with side wings which can effectively avoid foreign body sensation and facilitate the fixing of the lower end of the backrest cover.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a seat backrest structure with side wings, which comprises a backrest fan, backrest foam with side wings at both ends, side wing support type steel wire and backrest cover matched with the backrest foam. The side wing support type steel wire is connected head to tail to form a rectangular structure, and is integrally foamed in the inside of the backrest foam. The side wing support type steel wire extends vertically, and its two ends correspond to the positions of the side wings of the backrest foam, and the two ends are arched forward to support the side wings. The bottom beam of the side wing support type steel wire corresponds to the pre-installation position of a row of C-shaped nails for fixing the backrest cover, and the row of C-shaped nails is arranged on the bottom beam of the side wing support type steel wire to fix the lower end of the backrest cover.

[0006] In the above solution: the top of the side wing support steel wire extends to the upper part of the backrest foam, and the middle part of the top crossbeam of the side wing support steel wire bends upward to form a gate-shaped structure. The backrest fan is installed and fixed on the gate-shaped structure. Traditional side wing support steel wires have low integration with other backrest components and lack an effective installation structure, which requires additional complex mounting brackets when installing additional equipment such as fans, increasing the manufacturing cost of the seat. The design of this gate-shaped structure fully considers the installation requirements of the backrest fan. Its unique shape and position are adapted to the installation size of the fan, allowing the fan to be easily and quickly installed and fixed inside the backrest without the need for additional mounting brackets or structures. This reduces installation steps and the number of parts, improves production efficiency, and reduces manufacturing costs.

[0007] In the above solution: the backrest fan is fixedly installed on the door-shaped structure by three legs. One leg is fixed to the crossbeam of the door-shaped structure, and the other two legs are fixed to the two ends of the door-shaped structure, forming a multi-point fixed layout. This design allows the fan to obtain stable support in all directions and has high installation stability.

[0008] In the above solution, the support legs and the door-shaped structure are fixed by snap-fit, making it easy to assemble and disassemble the backrest fan.

[0009] In the above scheme, the side-bracing steel wire is formed by splicing two steel wires. One steel wire is bent to form the two ends and the top crossbeam of the side-bracing steel wire, and the other steel wire serves as the bottom crossbeam of the side-bracing steel wire. Molding the side-bracing steel wire as a single piece may require complex molds and forming processes, increasing production difficulty and cost. Using two spliced ​​steel wires allows for simpler forming of each wire separately, simplifying the overall process.

[0010] In the above scheme: the side wing support steel wire is formed by splicing four steel wires, with each of the four steel wires corresponding to one of the four ends of the side wing support steel wire. Using four steel wires spliced ​​together allows for simple shaping of each wire, making the process simple and convenient.

[0011] The beneficial effects of this utility model are:

[0012] 1. The interlocking design of the side wing support wires ensures a tight bond between the wires and the backrest foam, resulting in a stable overall structure. The vertically extending wires with forward-arching ends precisely align with the sides of the backrest foam, effectively supporting the wings and ensuring they maintain a good shape while the user is seated, providing comfortable lateral support. 2. The bottom crossbeam of the side wing support wires corresponds to the pre-installed positions of a row of C-shaped nails used to secure the backrest cover. Driving these C-shaped nails onto the bottom crossbeam directly and firmly fixes the lower part of the backrest cover. This method cleverly utilizes the structure of the side wing support wires, eliminating the need for additional mounting brackets for the C-shaped nails and effectively reducing production costs. 3. Because the side wing support wires are integrally foamed within the backrest foam, when the backrest foam collapses under pressure from the user, the wires float with the foam, effectively preventing any foreign body sensation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the side-wing bracing steel wire in this utility model.

[0014] Figure 2 This is a diagram showing the installation of the backrest fan.

[0015] Figure 3 This is a schematic diagram of the foamed backrest structure in this utility model. Detailed Implementation

[0016] like Figure 1 As shown in Figure 3, a seat back structure with side wings mainly consists of a back fan 1, a back foam 2 with side wings at both ends, a side wing support steel wire 3, and a back cover that matches the back foam 2.

[0017] The side wing support steel wires 3 are joined end to end to form a rectangular structure, which is integrally foamed inside the backrest foam 2. The side wing support steel wires 3 extend vertically, and their two ends correspond to the positions of the two side wings of the backrest foam 2. The two ends arch forward to achieve the support shape for the side wings.

[0018] The bottom crossbeam 31 of the side wing brace type steel wire 3 corresponds to the pre-installation position A of a row of C-shaped nails used to fix the backrest sleeve. The row of C-shaped nails is driven into the bottom crossbeam 31 of the side wing brace type steel wire 3 to fix the lower end of the backrest sleeve.

[0019] Ideally, the top of the side wing support type steel wire 3 extends to the upper part of the backrest foam 2, and the middle part of the top crossbeam of the side wing support type steel wire 3 bends upward to form a door-shaped structure 32, and the backrest fan 1 is installed and fixed on the door-shaped structure 32.

[0020] Traditional side-bracing steel wire designs have low integration with other backrest components and lack an effective installation structure. This necessitates the design of complex mounting brackets when installing additional equipment such as fans, increasing the manufacturing cost of the seat. The door-type structure 32 in this design fully considers the installation requirements of the backrest fan 1. Its unique shape and position are adapted to the fan's installation dimensions, allowing the fan to be easily and quickly installed and fixed inside the backrest without the need for additional mounting brackets or structures. This reduces installation steps and the number of parts, improves production efficiency, and lowers manufacturing costs.

[0021] Ideally, the backrest fan 1 is fixedly installed on the door-shaped structure 32 by three support legs 11. One support leg 11 is fixed to the crossbeam of the door-shaped structure 32, and the other two support legs 11 are fixed to the two ends of the door-shaped structure 32 respectively, forming a multi-point fixed layout. This design allows the fan to obtain stable support in all directions, resulting in high installation stability.

[0022] Ideally, the support leg 11 should be snapped into the door structure 32 to make the backrest fan 1 easy to install and remove.

[0023] Ideally, the side-bracing steel wire 3 is formed by splicing two steel wires. One steel wire is bent to form the two ends and the top crossbeam of the side-bracing steel wire, while the other steel wire serves as the bottom crossbeam. Molding the side-bracing steel wire as a single piece may require complex molds and forming processes, increasing production difficulty and cost. By splicing two steel wires, each wire can be simply formed separately, simplifying the overall process.

[0024] Ideally, the side-bracing steel wire 3 is formed by splicing four steel wires, with each of the four wires corresponding to one of the four ends of the side-bracing steel wire 3. Using four steel wires spliced ​​together allows for simple shaping of each wire, making the process simple and convenient.

Claims

1. A side winged seat back structure comprising a back fan (1), a side winged back foam (2) at both ends, a side wing support wire (3), and a back face cover matching the back foam (2), characterized in that: The side wing supporting steel wire (3) is connected head to tail to form a rectangular structure, and is integrally foamed in the backrest foam (2). The side wing supporting steel wire (3) extends vertically, and the two ends correspond to the positions of the two side wings of the backrest foam (2). The two ends are arched forward to support the side wings. The bottom crossbeam (31) of the side wing supporting steel wire (3) corresponds to the pre-installed position (A) of a row of C-shaped nails for fixing the backrest cover. The row of C-shaped nails are arranged on the bottom crossbeam (31) of the side wing supporting steel wire (3) to fix the lower end of the backrest cover.

2. The side-winged seat back structure according to claim 1, characterized by: The top end of the side wing supporting steel wire (3) extends to the upper part of the backrest foam (2). The middle part of the top crossbeam of the side wing supporting steel wire (3) is bent upward to form a door-shaped structure (32). The backrest fan (1) is fixed and installed on the door-shaped structure (32).

3. The side-winged seat back structure according to claim 2, characterized by: The backrest fan (1) is fixed and installed on the door-shaped structure (32) by three supporting legs (11). One supporting leg (11) is fixed on the crossbeam of the door-shaped structure (32), and the other two supporting legs (11) are fixed on the two ends of the door-shaped structure (32), respectively.

4. The side-winged seat back structure according to claim 3, characterized by: The supporting leg (11) and the door-shaped structure (32) are clamped and fixed.

5. The side-winged seat back structure of claim 1, wherein: The side wing supporting steel wire (3) is formed by splicing two steel wires. One steel wire is bent to form the two ends and the top crossbeam of the side wing supporting steel wire, and the other steel wire is used as the bottom crossbeam of the side wing supporting steel wire.

6. The side-winged seat back structure of claim 1, wherein: The side wing supporting steel wire (3) is formed by splicing four steel wires. The four steel wires correspond to the four ends of the side wing supporting steel wire (3), respectively.

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