Seat cushion with adjustable hardness and automobile seat

Abstract

The utility model discloses a seat cushion with adjustable hardness and an automobile seat, which comprise an air cushion body, an air inflation chamber is arranged in the air cushion body, and the air inflation chamber is constructed into a net shape on the horizontal section of the air cushion body. The utility model has the beneficial effects that through the arrangement of the air inflation chamber with the net structure, when a certain area on the surface of the seat cushion is stressed, the net structure can disperse the force to the periphery to generate a pulling force, so that the elasticity of the seat cushion in an uninflated state is improved, additional filling of a flexible object or a buffer object is not needed, and the safety of the seat cushion is improved. And the collapse feeling of a passenger during riding is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a seat cushion with adjustable softness and hardness and an automobile seat. Background Art

[0002] In recent years, as people use cars more and more, they are more concerned about the comfort of driving. In order to improve the user's driving experience, most car seat cushions are equipped with the function of adjusting the softness and hardness.

[0003] The hardness adjustment of the car seat cushion mainly depends on the air bag integrated inside the car seat, and the air bag is inflated and deflated by an air pump to achieve the purpose of adjusting the hardness of the car seat cushion. For example, in the prior art, a Chinese invention patent with the announcement number CN111055738A discloses a hardness adjustment device for car seats and a car seat, which controls the inflation and deflation of each air bag by switching the throttle valve to adjust the hardness of the seat. However, since each air bag is independent of each other, the air bag expands into a spindle shape when inflated, and is not lifted as a whole in a plane, resulting in the destruction of the surface structure of the seat, affecting comfort and appearance. In addition, the force cannot be transmitted between the air bags, which results in a sense of collapse when the passenger sits on the seat when the product is not inflated. Utility Model Content

[0004] In view of this, one of the purposes of the present invention is to provide a seat cushion with adjustable hardness, aiming to solve the problem of poor comfort of existing seat cushions with adjustable hardness, so that passengers can have a more comfortable riding experience.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A seat cushion with adjustable hardness comprises an air cushion body, characterized in that an inflatable chamber is arranged inside the air cushion body, and the inflatable chamber is constructed into a mesh shape on a horizontal cross section of the air cushion body.

[0007] With the above structure, when a certain area on the seat cushion surface is subjected to pressure, the mesh structure will disperse the force to the surrounding area, generating a pulling force, and the elastic force of the seat cushion in the initial state will be increased, reducing the feeling of collapse.

[0008] Preferably, the air cushion body is provided with polygonal holes, any two adjacent polygonal holes are connected by supporting ribs, and the mesh-shaped inflatable chamber is formed inside the supporting ribs. With the above structure, the supporting ribs corresponding to the sides of each polygonal hole can make the inflatable chamber structure more stable.

[0009] Preferably, the polygonal hole is a regular triangle, a square, a regular pentagon or a regular hexagon. With the above structure, the air cushion can still have more elasticity in the uninflated state, reducing the sense of collapse and meeting the comfort requirements of the seat.

[0010] As a preferred embodiment, a sink is provided at the bottom of the polygonal hole, and a ventilation hole is provided in the middle of the sink. With the above structure, the seat cushion with adjustable hardness is combined with the ventilation function of the car seat.

[0011] As a preferred embodiment, the air cushion body is provided with a supporting frame in the circumference, the interior of the supporting frame is connected to the inflation chamber, and the exterior is provided with air holes. With the above structure, the supporting frame makes the air cushion body structure more stable, and the air holes ensure that the air cushion body can be inflated and deflated, thereby realizing the adjustment of the softness and hardness of the seat cushion.

[0012] As a preferred embodiment, the lower part of the air cushion body is open and fixed with a bottom plate by welding, and the bottom plate is provided with through holes corresponding to each ventilation hole. With the above structure, the bottom plate support can make each sinking platform at the bottom of the air cushion body a whole, reducing the sense of collapse.

[0013] A second purpose of the present invention is to provide a car seat.

[0014] A car seat, characterized in that the seat frame is provided with the above-mentioned seat cushion with adjustable hardness. The above-mentioned structure can ensure that the car seat has the function of adjusting hardness.

[0015] Preferably, the seat frame includes soft foam for passengers to sit on and hard foam arranged below the soft foam, and the seat cushion with adjustable hardness is arranged between the soft foam and the hard foam. With the above structure, the soft foam ensures the flatness and riding comfort of the seat surface, and the hard foam plays a supporting role.

[0016] Preferably, a ventilation device is connected below the hard foam. The above structure can ensure that the car seat has both the function of adjusting the hardness and the function of ventilation. Compared with the traditional method of setting the ventilation layer between the soft foam and the hard foam, the structure is more compact and the ventilation effect is more uniform.

[0017] As a preferred embodiment, the soft foam surface is provided with a seat cover. With the above structure, the car seat can be protected to ensure the service life and comfort of the car seat.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The seat cushion and car seat with adjustable hardness provided by the utility model have evenly distributed polygonal holes, and because the inflatable chamber is composed of supporting ribs between any two adjacent polygonal holes, when the seat cushion is inflated, the overall structure of the air cushion does not change, and the Z-direction change is small, thereby ensuring the flatness of the seat. The hardness of the seat cushion can be adjusted by inflating and deflating the air cushion body.

[0020] 2. When a certain area on the seat cushion surface is under pressure, the honeycomb structure can disperse the force to the surrounding area, generating a pulling force, which increases the elasticity of the seat cushion in the uninflated state. There is no need for additional flexible or buffering materials, which helps to reduce the feeling of collapse when the occupants are riding.

[0021] 3. There is a vent at the center of the bottom of the sink, which can be combined with the ventilation function of the car seat to help optimize the overall structure of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded diagram of a seat cushion with adjustable hardness;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of a seat cushion with adjustable hardness;

[0024] Figure 3 A schematic diagram of the structure of a seat cushion with adjustable hardness (from the main viewing angle);

[0025] Figure 4 For along Figure 3 Sectional view of middle II;

[0026] Figure 5 For along Figure 3 Sectional view of II-II;

[0027] Figure 6 A schematic diagram of the structure of a car seat. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with embodiments and drawings.

[0029] Embodiment 1:

[0030] like Figures 1 to 5 As shown, a seat cushion with adjustable hardness includes an air cushion body A, an inflatable chamber 1 is arranged inside the air cushion body A, and the inflatable chamber 1 is constructed into a mesh structure on the horizontal cross section of the air cushion body A. With such a design, when a certain area of ​​the seat cushion receives pressure, the mesh structure can disperse the force in the circumferential direction, so that the seat cushion in the uninflated state has better resilience, reducing the sense of collapse of the occupant 12 when sitting on the seat cushion.

[0031] like Figure 2 and Figure 3 As shown, polygonal holes 2 are uniformly formed on the air cushion body A, and any two polygonal holes 2 are connected by support ribs 3. In this embodiment, the air-filled chamber 1 of the mesh structure is formed inside the support ribs 3.

[0032] Furthermore, the polygonal hole 2 can be a regular polygonal structure such as a regular triangle, square, regular pentagon, regular hexagon, etc. In this embodiment, the cross section of the polygonal hole 2 is preferably a regular hexagonal structure, because the honeycomb structure formed by this shape is more evenly stressed and has the best riding comfort.

[0033] In order to make the overall structure of the seat cushion body A more solid, a support frame 6 is formed around the seat cushion body A. The interior of the support frame 6 is connected to the inflation chamber 1, and an air hole 7 is arranged outside. The far end of the air hole 7 is connected to an air pump, and the air cushion body A can be inflated and deflated by the air pump, thereby adjusting the softness and hardness of the seat cushion.

[0034] In addition, a bottom plate B is fixedly installed at the bottom of the seat cushion body A. In this embodiment, the bottom plate B and the seat cushion body A are fixed together by welding. Such a design can make the bottom surface of each polygonal hole 2 present as a whole, which helps to reduce the sense of collapse. In order to ensure the comfort of the occupant 12 and not feel the foreign body sensation, the air cushion body A can be made of soft silicone material, and the bottom plate B can be made of PC material.

[0035] In this embodiment, a sink 4 is provided at the bottom of each polygonal hole 2, a vent 5 is provided at the center of the sink 4, and a through hole 8 is provided on the bottom plate B corresponding to each vent 5. With such a design, the seat cushion with adjustable hardness can be organically combined with the ventilation system of the car seat.

[0036] In order to optimize the structure and not affect the combination of the air cushion body A and the ventilation function of the car seat, in this embodiment, the vent 5 is isolated from the internal inflation chamber 1 of the air cushion body A, and the air hole 7 is arranged on the side of the air cushion body A.

[0037] In combination with the above structure, this embodiment has at least two usage states:

[0038] 1. Soft state

[0039] In this state, the air cushion body A is not inflated, and the air pressure inside the air cushion body A is equal to the external air pressure. Since the air cushion body A is made of a flexible material and there is no support plate or limit plate on the top of the air cushion body A, the occupant 12 will not feel a foreign body sensation when sitting down. At the same time, due to the regular hexagonal honeycomb structure design on the surface of the air cushion body A, when the occupant 12 sits down, the pressure can be transmitted circumferentially through the honeycomb structure, so that the occupant 12 will not feel a sense of collapse when sitting, and there is no need to fill additional flexible materials or buffers to help reduce the sense of collapse when the occupant 12 sits down.

[0040] 2. Hard state

[0041] In this state, the interior of the air cushion body A is filled with gas. Due to the design of the regular hexagonal honeycomb structure and the closed air path that can be formed between the edges of the polygonal hole 2, the overall structure of the air cushion body A remains unchanged when it is filled with air, and there will be no air hammer phenomenon on the surface. The Z-direction change is small, which ensures the flatness and aesthetics of the seat cushion. At the same time, the occupant 12 will not feel any foreign body sensation or discomfort when riding.

[0042] Embodiment 2:

[0043] like Figure 6 As shown, a car seat includes a soft foam 9 for an occupant 12 to sit on and a hard foam 10 arranged below the soft foam 9, and an air cushion body A and a bottom plate B are installed between the soft foam 9 and the hard foam 10. In this embodiment, the car seat ventilation system is arranged at the bottom of the hard foam 10. Compared with the traditional ventilation layer arranged between the soft foam 9 and the hard foam 10, this embodiment optimizes the assembly structure of the car seat, making the ventilation system more convenient to install and having better use effect.

[0044] In order to ensure the comfort, aesthetics and service life of the car seat, in this embodiment, a layer of seat cover 11 is coated on the upper surface of the soft foam 9 .

[0045] In this embodiment, since the seat cushion with adjustable hardness is composed of only an air cushion A and a base B welded together, there is no need to add additional grooves when the soft foam 9 and the hard foam 10 are foamed. Only a groove with the same outer contour as the adjustable hardness seat cushion is needed to meet the production of the soft foam 9 and the hard foam 10.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A seat cushion with adjustable hardness, comprising an air cushion body (A), characterized in that: An inflatable chamber (1) is provided inside the air cushion body (A); in a horizontal cross section of the air cushion body (A), the inflatable chamber (1) is constructed in a net-like shape.

2. The seat cushion with adjustable hardness according to claim 1, characterized in that: The air cushion body (A) is provided with polygonal holes (2), any two adjacent polygonal holes (2) are connected by supporting ribs (3), and the mesh-shaped inflatable chamber (1) is formed inside the supporting ribs (3).

3. The seat cushion with adjustable hardness according to claim 2, characterized in that: The polygonal hole (2) is a regular triangle, a square, a regular pentagon or a regular hexagon.

4. The seat cushion with adjustable hardness according to claim 2, characterized in that: A sink (4) is provided at the bottom of the polygonal hole (2), and a ventilation hole (5) is provided at the middle of the sink (4).

5. The seat cushion with adjustable hardness according to claim 1, characterized in that: The air cushion body (A) is provided with a supporting frame (6) in the circumferential direction. The interior of the supporting frame (6) is communicated with the inflation chamber (1), and air holes (7) are provided on the exterior.

6. The seat cushion with adjustable hardness according to claim 1, characterized in that: The lower part of the air cushion body (A) is open and fixedly connected to a bottom plate (B) by a welding process. The bottom plate (B) is provided with through holes (8) corresponding to each ventilation hole (5).

7. A car seat, characterized in that: A seat cushion with adjustable hardness as claimed in any one of claims 1 to 6 is installed in the seat frame of the seat.

8. The vehicle seat according to claim 7, characterized in that: The seat frame comprises a soft foam (9) for passengers to sit on and a hard foam (10) arranged below the soft foam (9), and the seat cushion with adjustable hardness is arranged between the soft foam (9) and the hard foam (10).

9. The vehicle seat according to claim 8, characterized in that: A ventilation device is provided below the rigid foam (10).

10. The vehicle seat according to claim 8, characterized in that: A seat cover (11) is provided on the surface of the soft foam (9).

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