Lightweight skeleton structure of automobile seat

Abstract

The utility model discloses an automobile seat light weight skeleton structure which comprises a cushion skeleton, a cushion fixing plate, a backrest adjusting plate, a backrest skeleton and a headrest connecting pipe, a hip support connecting steel pipe and a leg support connecting steel pipe are transversely and fixedly connected in the cushion skeleton, and a cushion supporting rib is fixedly connected between the leg support connecting steel pipe and the hip support connecting steel pipe. And backrest supporting ribs are transversely and fixedly connected to the backrest framework. According to the automobile seat, the seat cushion framework and the hip support connecting steel pipe are of a circular steel pipe structure, the backrest framework and the leg support connecting steel pipe are of a semicircular steel pipe structure, and the seat cushion supporting rib and the backrest supporting rib are of a thin and straight steel bar structure, so that the structural strength of the bearing part is ensured; steel materials are reduced at the non-bearing part, the weight is further reduced on the basis of the prior art, the weight of the whole vehicle seat framework is reduced in the same or similar mode, and the obvious overall weight reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat frames, in particular to a lightweight frame structure of an automobile seat. Background Art

[0002] There are many types of car seat frame structures, including steel frame, steel tube frame, steel plate frame, plastic frame, carbon fiber frame and combined structure frame. Each frame has its own advantages and disadvantages, mainly in terms of weight and price. For some economy cars, steel frame, steel tube frame, steel plate frame and combined structure frames of the above structures are more commonly used. These frames are made of steel and have a certain degree of high structural strength, but they are also heavy. For economy cars, durability and fuel economy are particularly important. Economy cars generally have at least five seats. As the weight of the seat frame on the car increases, the overall weight of the car increases. Although for cars with tons as the weight unit, adding a few pounds or more than ten pounds is not too much, the long-term use of the car still has a great impact on its fuel consumption and fuel costs. Therefore, many car seat manufacturers will study lightweight car frame structures.

[0003] The existing common lightweight automobile frame structure generally uses steel pipes instead of thick steel bars, and punched steel plates instead of whole steel plates, which reduces the weight while ensuring the local volume of the frame. However, it is difficult to further lightweight it. In response to the vast market demand, our company has designed and proposed a new lightweight frame structure for automobile seats. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a lightweight frame structure for an automobile seat, which is used to further lightweight the frame of the automobile seat based on the prior art.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A lightweight frame structure of an automobile seat, comprising a cushion frame, a cushion fixing plate, a backrest adjustment plate, a backrest frame and a headrest connecting pipe, wherein the overall structures of the cushion frame and the backrest frame are both U-shaped, a hip support connecting steel pipe and a leg support connecting steel pipe are transversely fixedly connected inside the cushion frame, a cushion supporting rib is fixedly connected between the leg support connecting steel pipe and the hip support connecting steel pipe, and a backrest supporting rib is transversely fixedly connected to the backrest frame;

[0007] The seat cushion fixing plate and the backrest adjustment plate are both steel plate structures, the seat cushion frame, headrest connecting pipe and hip support connecting steel pipe are all round tube steel pipe structures, the backrest frame and leg support connecting steel pipe are both semi-circular tube steel pipe structures, and the seat cushion support ribs and backrest support ribs are both fine steel bar structures.

[0008] Preferably, the seat cushion support ribs and the backrest support ribs are both provided in three numbers.

[0009] Preferably, the opening portion of the semicircular steel pipe structure of the leg support connecting steel pipe faces downward, and the opening portion of the semicircular steel pipe structure of the backrest frame faces forward.

[0010] Preferably, a groove for clamping a backrest support rib is provided on the front side of the backrest frame, and the backrest support rib is clamped in the groove and fixed to the backrest frame by welding.

[0011] Preferably, the hip support connecting steel pipe and the leg support connecting steel pipe are both provided with sockets for inserting the seat cushion supporting ribs, and the seat cushion supporting ribs are inserted into the sockets and are welded and fixed to the hip support connecting steel pipe and the leg support connecting steel pipe.

[0012] Preferably, the seat cushion support ribs and the backrest support ribs are both straight rib structures.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The load of car seats is mainly borne on the buttocks rather than the legs and back. The seat frame and the hip support connecting steel pipe of the utility model adopt a round tube steel pipe structure, while the backrest frame and the leg support connecting steel pipe adopt a semi-circular tube steel pipe structure. The seat cushion support ribs and the backrest support ribs adopt a thin straight steel bar structure to ensure the structural strength of the load-bearing parts, reduce the steel material in the non-load-bearing parts, and further lightweight on the basis of existing technology. The seat frames of the entire vehicle adopt the same or similar method to reduce weight, achieving a significant overall lightweight effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a front cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the local structure at the corresponding position of the middle seat cushion support rib;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the local structure at the corresponding position of the middle headrest connecting pipe;

[0019] Figure 5 This is a left sectional view of the corresponding position of the leg support connecting the steel pipe of the utility model;

[0020] Figure 6 This is a right sectional view of the corresponding position of the hip support connecting the steel pipe of the utility model;

[0021] Figure 7It is a top view of the overall structure of the utility model.

[0022] In the figure: 1. seat cushion frame; 2. seat cushion fixing plate; 3. backrest adjustment plate; 4. backrest frame; 5. headrest connecting pipe; 6. hip support connecting steel pipe; 7. leg support connecting steel pipe; 8. seat cushion supporting ribs; 9. backrest supporting ribs; 10. groove; 11. socket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-7 As shown, the utility model provides a technical solution: a lightweight frame structure of a car seat, including a cushion frame 1, a cushion fixing plate 2, a backrest adjustment plate 3, a backrest frame 4 and a headrest connecting pipe 5, the cushion fixing plate 2 and the backrest adjustment plate 3 are both steel plate structures, the overall structure of the cushion frame 1 and the backrest frame 4 are both U-shaped, and the seat cushion frame 1 is laterally fixedly connected with a hip support connecting steel pipe 6 and a leg support connecting steel pipe 7;

[0025] A seat cushion support rib 8 is fixedly connected between the leg support connecting steel pipe 7 and the hip support connecting steel pipe 6, and a backrest support rib 9 is fixedly connected to the backrest frame 4 transversely. The seat cushion support rib 8 and the backrest support rib 9 are both set to three, and the existing ones are usually three to five to ensure that the quality of the raw materials is qualified. Using three can achieve sufficient strength;

[0026] The seat frame 1, the headrest connecting pipe 5 and the hip support connecting steel pipe 6 are all round steel pipe structures. The hip support connecting steel pipe 6 and the leg support connecting steel pipe 7 are both provided with a socket 11 for inserting the seat support rib 8. The seat support rib 8 passes through the single-layer side wall of the hip support connecting steel pipe 6 and the leg support connecting steel pipe 7 and is inserted into the socket 11 and is welded and fixed with the hip support connecting steel pipe 6 and the leg support connecting steel pipe 7 to ensure structural strength and sufficient area size, and facilitate the installation of surrounding components;

[0027] The backrest frame 4 and the leg support connecting steel pipe 7 are both semi-circular steel pipe structures. The opening of the semi-circular steel pipe structure of the leg support connecting steel pipe 7 is downward, so as to achieve a strong load-bearing effect. If it is installed in reverse, when the load-bearing force is strong, the opening of the semi-circular steel pipe structure will be wrinkled and deformed, thereby losing the load-bearing effect.

[0028] The opening part of the semi-circular steel pipe structure of the backrest frame 4 faces forward, and the seat cushion support rib 8 and the backrest support rib 9 are both fine steel bar structures. A groove 10 for clamping the backrest support rib 9 is provided on the front of the backrest frame 4. The backrest support rib 9 is clamped in the groove 10 and welded to the backrest frame 4. The seat cushion support rib 8 and the backrest support rib 9 are both straight rib structures, which mainly play the role of supporting the seat filling. There is no need for a large number or large size. The diameter is selected to be thin rather than thick, and the shape is straight rather than curved, so as to achieve lightweight.

[0029] Working principle: The load of car seats is mainly borne on the buttocks rather than the legs and back. The seat cushion frame 1 and the hip support connecting steel pipe 6 of the utility model adopt a round tube steel pipe structure, while the backrest frame 4 and the leg support connecting steel pipe 7 adopt a semi-circular tube steel pipe structure. The seat cushion support ribs 8 and the backrest support ribs 9 adopt a thin straight steel bar structure to ensure the structural strength of the load-bearing parts, reduce the steel material in the non-load-bearing parts, and further lightweight on the basis of existing technology. The seat frames of the entire vehicle adopt the same or similar method to reduce weight, achieving a significant overall lightweight effect.

[0030] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight frame structure of an automobile seat, comprising a seat cushion frame (1), a seat cushion fixing plate (2), a backrest adjustment plate (3), a backrest frame (4) and a headrest connecting pipe (5), characterized in that: The overall structures of the seat frame (1) and the backrest frame (4) are both U-shaped, a hip support connecting steel pipe (6) and a leg support connecting steel pipe (7) are transversely fixedly connected inside the seat frame (1), a seat support rib (8) is fixedly connected between the leg support connecting steel pipe (7) and the hip support connecting steel pipe (6), and a backrest supporting rib (9) is transversely fixedly connected to the backrest frame (4); The seat cushion fixing plate (2) and the backrest adjustment plate (3) are both steel plate structures, the seat cushion frame (1), the headrest connecting pipe (5) and the hip support connecting steel pipe (6) are all round tube steel pipe structures, the backrest frame (4) and the leg support connecting steel pipe (7) are both semi-circular tube steel pipe structures, and the seat cushion support ribs (8) and the backrest support ribs (9) are both thin steel bar structures.

2. The lightweight frame structure of a car seat according to claim 1, characterized in that: The seat cushion support ribs (8) and the backrest support ribs (9) are both provided in three numbers.

3. The lightweight frame structure of a car seat according to claim 1, characterized in that: The opening portion of the semicircular steel pipe structure of the leg support connecting steel pipe (7) faces downward, and the opening portion of the semicircular steel pipe structure of the backrest frame (4) faces forward.

4. The lightweight frame structure of a car seat according to claim 3, characterized in that: The backrest frame (4) is provided with a groove (10) on the front side for clamping the backrest support rib (9); the backrest support rib (9) is clamped in the groove (10) and fixed to the backrest frame (4) by welding.

5. The lightweight frame structure of a car seat according to claim 1, characterized in that: The hip support connecting steel pipe (6) and the leg support connecting steel pipe (7) are both provided with a socket (11) for inserting the seat cushion support rib (8); the seat cushion support rib (8) is inserted into the socket (11) and is welded and fixed to the hip support connecting steel pipe (6) and the leg support connecting steel pipe (7).

6. The lightweight frame structure of a car seat according to claim 1, characterized in that: The seat cushion support ribs (8) and the backrest support ribs (9) are both straight rib structures.

Images