Seat cushion

Abstract

The utility model discloses a seat cushion. The seat cushion comprises a seat basin structure and a cushion sponge, the shape of the bottom surface of the cushion sponge is matched with the outer contour of the seat basin structure, and the cushion sponge covers the seat basin structure; the seat basin structure comprises a seat basin and a zigzag spring; a hollowed-out rectangular groove is formed in the middle of the seat basin, mounting blocks are arranged on the opposite side walls of the hollowed-out rectangular groove, horizontally-penetrating mounting holes are formed in the middles of the mounting blocks, and the two ends of the zigzag spring penetrate through the mounting holes to be hung on the seat basin; the multiple zigzag springs are distributed in the hollowed-out rectangular groove side by side at equal intervals. The cushion sponge comprises a first sitting area in the middle and a second sitting area except the first sitting area, and a groove is formed in the peripheral surface of the first sitting area; the height of the first sitting area is smaller than that of the second sitting area; and the zigzag spring is supported at the bottom of the first sitting area. Dynamic support is provided through elastic deformation of the spring, and comfort of the vehicle seat is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seats, and more particularly to a seat cushion. Background Technology

[0002] Seat comfort often affects the passenger's riding experience. In existing technology, the seat basin in a seat cushion provides support. However, most existing seat basins are made of plastic or have a bandage structure; plastic basins offer rigid support with poor pressure distribution. Furthermore, the bottom of a plastic basin is enclosed, resulting in poor breathability. Therefore, such seat cushions offer poor comfort. Bandage structures, on the other hand, only provide localized elasticity and are prone to sagging. Moreover, after prolonged use, the bandages supporting the foam seat cushion often loosen, thus providing poor support. Utility Model Content

[0003] To address the technical problems in the background art, this utility model provides a seat cushion, which includes a seat basin structure and a seat cushion sponge; the bottom shape of the seat cushion sponge matches the outer contour of the seat basin structure, and the seat cushion sponge covers the seat basin structure.

[0004] The seat basin structure includes a seat basin and a serpentine spring;

[0005] The seat basin has a hollow rectangular groove in the middle, and an installation block is provided on the opposite side wall of the hollow rectangular groove. The installation block has a horizontal through-hole in the middle, and the two ends of the serpentine spring pass through the installation hole and are hung on the seat basin.

[0006] There are multiple serpentine springs, and the multiple serpentine springs are arranged side by side at equal intervals in the hollow rectangular groove;

[0007] The seat cushion foam includes a first seating area in the middle and a second seating area excluding the first seating area. The surface of the first seating area is provided with grooves. The height of the first seating area is less than the height of the second seating area. The serpentine spring is supported at the bottom of the first seating area.

[0008] Furthermore, the serpentine spring has an upwardly convex arc surface in the vertical direction, and the distance between the apex of the arc surface and the bottom surface of the cushion sponge is 10±3 mm.

[0009] Furthermore, the section of the serpentine spring that passes through the mounting hole is provided with a covering layer, the length of which is greater than or equal to the length of the mounting hole.

[0010] Furthermore, the covering layer is a rubber pad.

[0011] Furthermore, the serpentine spring includes several sequentially connected bent segments and straight segments; the bending directions of the multiple bent segments are the same; the spacing between the bent segments of adjacent serpentine springs is equal to the spacing between the straight segments of adjacent serpentine springs.

[0012] Furthermore, the serpentine spring is made of manganese steel, and its diameter is 4±1 mm.

[0013] Furthermore, the basin is provided with a plurality of rectangular reinforcing blocks, each of which has a hollow interior and protrudes toward the interior of the hollow rectangular groove.

[0014] Furthermore, the surface of the seat basin is provided with a plurality of circular holes, and the plurality of circular holes and the plurality of rectangular reinforcing blocks are arranged sequentially at intervals.

[0015] Furthermore, a reinforcing strip is provided on the outer periphery of the basin, and a plurality of reinforcing plates are provided on the outer side of the reinforcing strip; the outline of the reinforcing plates is arc-shaped.

[0016] Furthermore, the height of the side of the second seating area away from the backrest is greater than the height of the side adjacent to the backrest, and the outer contour curve of the side of the second seating area away from the backrest is an acute angle.

[0017] The beneficial effects of this utility model are:

[0018] This utility model discloses a seat cushion comprising a seat basin structure and a seat cushion sponge. The bottom shape of the seat cushion sponge matches the outer contour of the seat basin structure, and the seat cushion sponge covers the seat basin structure. The seat basin structure includes a seat basin and a serpentine spring. A hollow rectangular groove is provided in the middle of the seat basin, and mounting blocks are provided on the opposite side walls of the hollow rectangular groove. A horizontal through mounting hole is provided in the middle of the mounting block, and the two ends of the serpentine spring pass through the mounting hole and are hung on the seat basin. This utility model discloses multiple serpentine springs, which are equally spaced and arranged side by side in the hollow rectangular groove. This open structure can improve the air circulation at the bottom of the seat cushion, achieve efficient ventilation and heat dissipation, and meet the needs of long-term sitting. The seat cushion sponge includes a first sitting area in the middle and a second sitting area excluding the first sitting area. Grooves are provided on the four sides of the first sitting area. The height of the first sitting area is less than the height of the second sitting area. The serpentine spring is supported at the bottom of the first sitting area, so that it can respond to the weight of different parts of the body when the person sits, so that the buttocks and thighs can be effectively supported, and it has good dynamic support, so that the seat cushion can adapt to different sitting postures. This invention provides dynamic support through the elastic deformation of a serpentine spring, balancing support and shock absorption requirements, effectively coping with bumpy road conditions, and improving the comfort of vehicle seat cushions. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an isometric drawing of a seat basin structure according to this utility model;

[0021] Figure 2 This is a front view of a seat cushion provided by this utility model;

[0022] Figure 3 This is a cross-sectional view of a seat cushion provided by this utility model.

[0023] In the figure, the corresponding labels are: 1-seat basin structure, 2-seat cushion sponge, 3-seat basin, 4-snake spring, 5-mounting block, 6-first seating area, 7-second seating area, 8-covering layer, 9-bent section, 10-straight section, 11-rectangular reinforcing block, 12-round hole, 13-reinforcing strip, 14-reinforcing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0026] like Figure 1-3 As shown, this utility model provides a seat cushion, which includes a seat basin structure 1 and a seat cushion sponge 2; the bottom shape of the seat cushion sponge 2 matches the outer contour of the seat basin structure 1, and the seat cushion sponge 2 covers the seat basin structure 1.

[0027] The seat basin structure 1 includes a seat basin 3 and a serpentine spring 4; a hollow rectangular groove is provided in the middle of the seat basin 3, and an installation block 5 is provided on the opposite side wall of the hollow rectangular groove. A horizontal through-hole is provided in the middle of the installation block 5, and the two ends of the serpentine spring 4 pass through the installation hole and are hung on the seat basin 3; there are multiple serpentine springs 4, and multiple serpentine springs 4 are distributed side by side at equal intervals in the hollow rectangular groove.

[0028] The seat cushion sponge 2 includes a first seat area 6 in the middle and a second seat area 7 excluding the first seat area 6. The surface of the first seat area 6 is provided with grooves. The height of the first seat area 6 is less than the height of the second seat area 7. The serpentine spring 4 is supported at the bottom of the first seat area 6.

[0029] The seat cushion of this invention features a sponge cushion directly covering the seat basin structure. The center of the seat basin 3 in the seat basin structure 1 is a hollow rectangular groove, resulting in an open bottom surface for the seat cushion. This open structure enhances air circulation at the bottom of the seat cushion, achieving efficient ventilation and heat dissipation to meet the needs of long-term seating. Simultaneously, this open structure facilitates the maintenance and replacement of the serpentine springs 4. The seat basin structure 1 provides dynamic support through the elastic deformation of the serpentine springs 4. When a person sits down, multiple serpentine springs 4 undergo elastic deformation under pressure, thus responding to the weight of different parts of the body during seating, effectively supporting the buttocks and thighs. Compared to seat cushions with plastic seat basins, the seat cushion of this invention offers better dynamic support, adapting to different sitting postures and improving the seating experience. Furthermore, the wavy structure of the serpentine springs 4 disperses the pressure generated when the body sits down, reducing localized pressure. Furthermore, the height of the first seating area 6 in the center of the seat cushion sponge 2 is lower than the surrounding height. Since the first seating area 6 is where the buttocks are located when a person sits, it can better conform to the curves of the human body. Simultaneously, the bottom of the first seating area 6 is supported by a serpentine spring 4, whose elastic deformation provides shock absorption when encountering bumpy roads. Therefore, the seat cushion provided by this invention can balance support and shock absorption, effectively coping with bumpy road conditions and improving the comfort of vehicle seat cushions.

[0030] For example, the seat basin 3 is provided with a first number of mounting blocks 5 and a second number of serpentine springs 4; in some embodiments, the first number is twice the second number. The mounting blocks 5 are also evenly spaced side by side on the sidewalls of the hollowed-out rectangular groove. In some embodiments, such as Figure 1As shown, the first quantity is 6, and the second quantity is 3. In some embodiments, the mounting block 5 can be integrally formed with the seat basin 3. In other embodiments, the mounting block 5 can also be fixedly connected to the seat basin 3 by screws. Exemplarily, the mounting block 5 can be made of metal. Exemplarily, the mounting block 5 is a cylindrical shape with a hollow center.

[0031] For example, the mounting block 5 can be set on the opposite short sidewall of the hollow rectangular groove of the seat basin 3. After the seat cushion and backrest are installed, the mounting blocks 5 are distributed on both sides of the area where the buttocks are located when the human body sits down. The serpentine spring 4 can effectively disperse the pressure generated when the human body sits down, thereby providing a comfortable riding experience and increasing the service life of the seat cushion.

[0032] For example, the serpentine spring 4 includes a plurality of sequentially connected bent segments 9 and straight segments 10; the bending directions of the plurality of bent segments 9 are the same; the spacing between the bent segments 9 of adjacent serpentine springs 4 is equal to the spacing between the straight segments 10 of adjacent serpentine springs 4. Figure 1 As shown, each serpentine spring 4 consists of several bent segments 9 and several straight segments 10 connected end to end. The bending direction of the bent segments 9 of each serpentine spring 4 is always towards the same side. Furthermore, the spacing between corresponding positions of any two serpentine springs is equal, which can evenly distribute the pressure generated when a person sits down, providing stable support for different areas of the body that come into contact with the seat cushion when a person sits down.

[0033] For example, the serpentine spring 4 has an upwardly convex arc surface in the vertical direction, and the distance between the apex of the arc surface and the bottom surface of the cushion sponge 2 is 10±3 mm.

[0034] When no one is sitting down, the serpentine spring 4 is in its naturally extended state. In this state, the serpentine spring 4 has an upwardly convex arc surface in the vertical direction, thereby providing support for the seat cushion foam covering it. Preferably, the distance between the apex of the arc surface, i.e., the highest point of the arc surface, and the bottom surface of the seat cushion foam is 10±3 mm, ensuring that the seat cushion does not sag significantly after a person sits down.

[0035] For example, the section of the serpentine spring 4 passing through the mounting hole is provided with a covering layer 8, the length of which is greater than or equal to the length of the mounting hole, ensuring that the portion of the serpentine spring 4 within the mounting hole is completely covered by the covering layer 8. For example, the covering layer 8 is a rubber pad, which can prevent friction between the serpentine spring 4 and the inner wall of the mounting hole from causing abnormal noise; at the same time, it can also increase the friction between the serpentine spring 4 and the inner wall of the mounting hole, improving the stability of the seat cushion.

[0036] For example, the serpentine spring 4 is made of manganese steel, and its diameter is 4 ± 1 mm. The serpentine spring 4 can be made by bending manganese steel of grade 65Mn. A typical diameter of the serpentine spring 4 is 4 mm. The serpentine spring 4 made of manganese steel has high fatigue resistance; after 200,000 compression tests, its deformation rate is less than 5%. Therefore, the serpentine spring 4 of this invention has a long service life, can provide stable support for a long time, and can improve the comfort and lifespan of the seat cushion.

[0037] For example, the seat basin 3 is provided with a plurality of rectangular reinforcing blocks 11, each of which is hollow inside and protrudes towards the interior of the hollow rectangular groove. For example, the surface of the seat basin 3 is provided with a plurality of circular holes 12, which are arranged sequentially and alternately with the plurality of rectangular reinforcing blocks 11. For example, the outer periphery of the seat basin 3 is provided with reinforcing strips 13, and a plurality of reinforcing plates 14 are provided on the outer side of the reinforcing strips 13; the outline of the reinforcing plates 14 is arc-shaped. Through the above-mentioned plurality of rectangular reinforcing blocks 11, circular holes 12, reinforcing strips 13 and a plurality of reinforcing plates 14, the rigidity of the seat basin structure 1 can be improved, thereby improving the stability of the structure after the seat cushion is installed.

[0038] For example, such as Figure 3 As shown, the height of the second seating area 7 in the seat cushion 2 on the side away from the backrest is greater than the height of the side adjacent to the backrest. The outer contour curve of the side of the second seating area 7 away from the backrest is an acute angle, which better conforms to the curve of the buttocks and legs when the human body sits down, thus improving the comfort of sitting.

[0039] The beneficial effects of this utility model are:

[0040] This utility model discloses a seat cushion comprising a seat basin structure and a seat cushion sponge. The bottom shape of the seat cushion sponge matches the outer contour of the seat basin structure, and the seat cushion sponge covers the seat basin structure. The seat basin structure includes a seat basin and a serpentine spring. A hollow rectangular groove is provided in the middle of the seat basin, and mounting blocks are provided on the opposite side walls of the hollow rectangular groove. A horizontal through mounting hole is provided in the middle of the mounting block, and the two ends of the serpentine spring pass through the mounting hole and are hung on the seat basin. This utility model discloses multiple serpentine springs, which are equally spaced and arranged side by side in the hollow rectangular groove. This open structure can improve the air circulation at the bottom of the seat cushion, achieve efficient ventilation and heat dissipation, and meet the needs of long-term sitting. The seat cushion sponge includes a first sitting area in the middle and a second sitting area excluding the first sitting area. Grooves are provided on the four sides of the first sitting area. The height of the first sitting area is less than the height of the second sitting area. The serpentine spring is supported at the bottom of the first sitting area, so that it can respond to the weight of different parts of the body when the person sits, so that the buttocks and thighs can be effectively supported, and it has good dynamic support, so that the seat cushion can adapt to different sitting postures. This invention provides dynamic support through the elastic deformation of a serpentine spring, balancing support and shock absorption requirements, effectively coping with bumpy road conditions, and improving the comfort of vehicle seat cushions.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A seat cushion, characterized in that, The seat cushion includes a seat basin structure (1) and a seat cushion sponge (2); the bottom shape of the seat cushion sponge (2) matches the outer contour of the seat basin structure (1), and the seat cushion sponge (2) covers the seat basin structure (1). The seat basin structure (1) includes a seat basin (3) and a serpentine spring (4); The seat basin (3) has a hollow rectangular groove in the middle, and an installation block (5) is provided on the side wall opposite to the hollow rectangular groove. The installation block (5) has a horizontal through-hole in the middle, and the two ends of the serpentine spring (4) pass through the installation hole and are hung on the seat basin (3). There are multiple serpentine springs (4), and the multiple serpentine springs (4) are arranged side by side at equal intervals in the hollow rectangular groove; The seat cushion sponge (2) includes a first seat area (6) in the middle and a second seat area (7) excluding the first seat area (6). The surface of the first seat area (6) is provided with grooves. The height of the first seat area (6) is less than the height of the second seat area (7). The serpentine spring (4) is supported at the bottom of the first seat area (6).

2. The seat cushion according to claim 1, characterized in that, The serpentine spring (4) has an upwardly convex arc surface in the vertical direction, and the distance between the apex of the arc surface and the bottom surface of the cushion sponge (2) is 10±3 mm.

3. The seat cushion according to claim 1, characterized in that, The section of the serpentine spring (4) that passes through the mounting hole is provided with a covering layer (8), the length of which is greater than or equal to the length of the mounting hole.

4. The seat cushion according to claim 3, characterized in that, The covering layer (8) is a rubber pad.

5. The seat cushion according to claim 1, characterized in that, The serpentine spring (4) includes several sequentially connected bent segments (9) and straight segments (10); the bending directions of the multiple bent segments (9) are the same; the spacing between the bent segments (9) of adjacent serpentine springs (4) is equal to the spacing between the straight segments (10) of adjacent serpentine springs (4).

6. The seat cushion according to claim 1, characterized in that, The serpentine spring (4) is made of manganese steel and has a diameter of 4±1 mm.

7. The seat cushion according to claim 1, characterized in that, The basin (3) is provided with a plurality of rectangular reinforcing blocks (11), each of which has a hollow interior and protrudes toward the interior of the hollow rectangular groove.

8. The seat cushion according to claim 7, characterized in that, The surface of the basin (3) is provided with a plurality of round holes (12), and the plurality of round holes (12) and the plurality of rectangular reinforcing blocks (11) are arranged in sequence at intervals.

9. The seat cushion according to claim 1, characterized in that, The outer periphery of the basin (3) is provided with a reinforcing strip (13), and a plurality of reinforcing plates (14) are provided on the outer side of the reinforcing strip (13); the outline of the reinforcing plate (14) is arc-shaped.

10. The seat cushion according to claim 1, characterized in that, The height of the side of the second seating area (7) away from the backrest is greater than the height of the side adjacent to the backrest, and the outer contour curve of the side of the second seating area (7) away from the backrest is an acute angle.

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