Automobile seat with hip adjusting function
By incorporating hip-adjustable airbags on the back of the seat cushion and optimizing their inflation mechanism, the problem of poor seat support in existing seats has been solved, resulting in better riding comfort and fit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIFENG SEATING (CHANGZHOU) CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-05
AI Technical Summary
In existing car seats with hip adjustment, the airbag position is not designed according to human anatomy, resulting in poor support and poor riding comfort.
Hip-adjustable airbags are installed on the back side of the seat cushion foam. The hip-adjustable airbags are fixed on one side with a fixed edge. They expand and lift the seat cushion foam. The direction of force is not perpendicular to the hip. They are set as double-layer airbags that expand and unfold in a hinge shape. Multiple airbags are arranged along the seat axis.
It enhances the support and fit around the passenger's hips, reduces the feeling of foreign objects, is suitable for different body types, and improves riding comfort.
Smart Images

Figure CN224197636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and in particular to an automotive seat with hip adjustment. Background Technology
[0002] Car seats are becoming increasingly sophisticated, with some now featuring hip adjustment. This allows passengers to adjust the seat profile to align with their hips and provide support.
[0003] In existing car seats with hip adjustment, circular or rectangular airbags are typically placed on the foam surface (front) of the seat cushion. Once inflated, these airbags provide hip support. However, the airbags are positioned directly above the passenger's ischium (providing vertical support), which is not designed according to the actual human anatomy, resulting in poor support. Furthermore, placing the airbags on the front of the foam reduces the contact area with the body during adjustment, potentially causing a feeling of discomfort and affecting overall comfort. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a car seat with hip adjustment that is optimized according to the human body structure, has a good wrapping feel, and ensures passenger comfort.
[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a car seat with hip adjustment, including a seat cushion.
[0006] The seat cushion includes a seat cushion foam, and a hip-adjusting air bag is disposed at the rear end of the seat cushion. The hip-adjusting air bag is located on the back side of the seat cushion foam, and a fixing edge is provided on the front side of the hip-adjusting air bag. The fixing edge is fixed to the seat cushion.
[0007] When the hip-adjusting air bag is inflated, it is fixed and expanded on one side of the fixed edge, which lifts the seat cushion foam and supports the passenger's hips.
[0008] Furthermore, when the hip-adjustable airbag expands and lifts up, the force applied to lift the passenger is located behind the passenger's hip, and the direction of the force is not perpendicular to the passenger's hip.
[0009] Furthermore, after the hip-adjusting air bag expands and rises, the side of the hip-adjusting air bag opposite to the fixed edge forms a fan-shaped surface.
[0010] Furthermore, the hip-adjusting air bag is configured as a double-layer air bag, comprising a first bag body and a second bag body stacked together, and both the first bag body and the second bag body are fixed to the seat cushion on one side by the fixed edge.
[0011] Furthermore, when the hip-adjusting air bag is inflated, the first bag and the second bag expand and unfold in a hinge-like manner with the fixed edge as the pivot center.
[0012] Furthermore, the lifting stroke of the rear end of the hip-adjusting air bag is greater than the lifting stroke of the front end of the hip-adjusting air bag.
[0013] Furthermore, multiple rows of hip-adjusting air bags are provided along the width direction of the seat cushion.
[0014] Furthermore, a seat pivot is provided at the rear end of the seat cushion, and multiple rows of hip-adjusting airbags are arranged along the axial direction of the seat pivot.
[0015] Furthermore, after the gas in the hip-adjusting air bag is released, the hip-adjusting air bag is arranged in a rectangular shape.
[0016] Furthermore, after the gas in the hip-adjusting airbag is released, the hip-adjusting airbag provides no support for the passenger's hips;
[0017] The hip-adjusting air bag is connected to an air tube, through which the air bag is inflated and deflated.
[0018] Compared with the prior art, the present invention has at least the following beneficial effects:
[0019] In this invention, the hip-adjustable airbag is located on the back side of the seat cushion foam. When the hip-adjustable airbag is inflated, it lifts the seat cushion foam, providing support for the passenger's hips and minimizing any foreign body sensation. Furthermore, the hip-adjustable airbag is fixed and inflated on one side with a fixed edge, lifting the seat cushion foam. After inflation, the side opposite the fixed edge forms a fan shape, enhancing the sense of enclosure for the passenger's hips. This design is suitable for both large and small passengers.
[0020] In this invention, when the hip-adjustable airbag expands and lifts up, the force applied to the passenger is located behind the passenger's hip, and the direction of the force is not perpendicular to the passenger's hip, which is more in line with the human body structure and can enhance the fit and envelopment of the passenger.
[0021] In this invention, the hip-adjustable air bag is configured as a double-layered air bag, comprising a first bag body and a second bag body stacked together. When the hip-adjustable air bag is inflated, the first bag body and the second bag body expand and unfold in a hinge shape with the fixed edge as the pivot center, resulting in a large lifting stroke and high lifting efficiency. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of the hip-adjustable air bag of this utility model;
[0023] Figure 2 This is a schematic diagram showing the arrangement of the hip airbag in the car seat of this utility model;
[0024] Figure 3 for Figure 2 A schematic diagram of the placement of the hip airbag in a car seat;
[0025] Figure 4 for Figure 2 A simplified diagram showing the mid-hip airbag installed in a car seat and inflated.
[0026] In the picture:
[0027] 100. Seat cushion;
[0028] 200. Hip-adjustable air bag; 20. Fixed edge; 2. Through hole; 21. First bag body; 22. Second bag body; 300. Seat pivot. Detailed Implementation
[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0034] like Figures 1-4 As shown, this embodiment of a car seat with hip adjustment includes a seat cushion 100 and a backrest. The seat cushion 100 includes a seat cushion 100 foam, which is generally disposed on and fixed to a seat cushion 100 frame. A hip adjustment air bag 200 is disposed at the rear end of the seat cushion 100. The hip adjustment air bag 200 is used to adjust the profile of the seat near the passenger's hips to adjust the fit between the car seat and the passenger's hips. The hip-adjustable air bag 200 is located on the back side of the foam of the seat cushion 100. The front side of the hip-adjustable air bag 200 is provided with a fixing edge 20, and the fixing edge 20 is fixed to the seat cushion 100. Specifically, at least two through holes 2 are provided on the fixing edge 20 of the hip-adjustable air bag 200. The fixing edge 20 is fixed to the car seat by fasteners such as bolts, screws and Christmas tree clips passing through the through holes 2 on the fixing edge 20, so as to install the hip-adjustable air bag 200 on the car seat.
[0035] The hip-adjusting air bag 200 is connected to an air tube, which is used to inflate and deflate the bag. Specifically, the air tube serves as both the inlet and outlet for the hip-adjusting air bag 200. Inflation occurs when air enters through the tube, and deflation occurs when air exits, providing convenient control.
[0036] After the gas in the hip-adjustable airbag 200 is released (i.e., the hip-adjustable airbag 200 is in a deflated state), the hip-adjustable airbag 200 is rectangular in shape, and has rounded corners at its four corners. When the gas in the hip-adjustable airbag 200 is released, the flat rectangular hip-adjustable airbag 200 provides no support for the passenger's hips. That is, in this embodiment of the car seat with hip adjustment, when the hip-adjustable airbag 200 is not inflated, it is no different from a regular car seat, and the hip-adjustable airbag 200 does not affect the normal function of the car seat.
[0037] In actual use, when the hip-adjustable air bag 200 is inflated, it is fixed and inflated on one side with the fixed edge 20, lifting the seat cushion 100 to support the passenger's hips. That is, when the hip-adjustable air bag 200 is inflated, the front side is fixed, while the rear side is unrestricted and can expand freely.
[0038] In existing car seats equipped with massage functions, the massage airbag is usually placed on the A side (front) of the seat cushion foam, and the massage airbag is inside the seat cover. After the massage airbag is inflated, it directly lifts the seat cover and supports the corresponding part of the passenger's body, which makes the passenger feel a very obvious foreign object sensation.
[0039] In this embodiment, the hip-adjustable airbag 200 is disposed on the back side of the seat cushion 100 foam. When the hip-adjustable airbag 200 is inflated, it lifts the seat cushion 100 foam, providing support for the passenger's hips and minimizing the passenger's discomfort. Furthermore, the hip-adjustable airbag 200 is fixed and inflated on one side with the fixed edge 20, lifting the seat cushion 100 foam. After inflation, the side opposite to the fixed edge 20 forms a fan-shaped surface, enhancing the sense of enclosure for the passenger's hips, making it suitable for both large and small passengers.
[0040] Furthermore, when the hip-adjusting airbag 200 in this embodiment expands and lifts up, the force applied to the passenger is located at the rear side of the passenger's hip, and the direction of the force is not perpendicular to the passenger's hip. That is, when the hip-adjusting airbag 200 in this embodiment expands and lifts up, the force applied to the passenger's hip is tilted forward from the lower rear side of the passenger's hip. After it is lifted up, it can ensure a better fit between the car seat surface and the passenger's hip and can also reduce the feeling of foreign objects.
[0041] When the hip-adjustable air bag 200 expands and rises, the side of the hip-adjustable air bag 200 opposite to the fixed side 20 forms a fan-shaped surface. Because the fixed side 20 on the front of the hip-adjustable air bag 200 is fixed to the car seat, while the rear side of the hip-adjustable air bag 200 is not restricted, the expansion speed of the rear side of the hip-adjustable air bag 200 is greater than the expansion speed of the front side of the hip-adjustable air bag 200.
[0042] Furthermore, the hip-adjustable airbag 200 is configured as a double-layer airbag, including a first bag body 21 and a second bag body 22 stacked together. Both the first bag body 21 and the second bag body 22 are fixed to the seat cushion 100 on one side by the fixing edge 20. That is, the front sides of both the first bag body 21 and the second bag body 22 are fixed to the car seat by the fixing edge 20, and the rear ends of both the first bag body 21 and the second bag body 22 are not restricted.
[0043] In actual use, when the hip-adjustable air bag 200 is inflated, the first bag body 21 and the second bag body 22 expand and unfold in a hinge-like manner with the fixed edge 20 as the pivot center. That is, the fixed edge 20 is equivalent to the rotation center axis of the hinge, and the expanded first bag body 21 and the second bag body 22 are equivalent to the two hinge pieces of the hinge. As the gas filled into the first bag body 21 and the second bag body 22 gradually increases, the first bag body 21 and the second bag body 22 gradually expand and open, that is, form a hinge-like expansion and unfolding.
[0044] Because the front end of the hip-adjustable airbag 200 is fixed by the fixed edge 20, forming a unilateral fixation, while the rear end of the hip-adjustable airbag 200 is not fixed or otherwise restricted, the lifting stroke of the rear end of the hip-adjustable airbag 200 is greater than the lifting stroke of the front end. Furthermore, when a person sits in a car seat, the distance between the rear end of the hip and the car seat surface is greater than the distance between the front end and the car seat surface. Therefore, in this embodiment, after the hip-adjustable airbag 200 expands and lifts, the rear end lifting stroke is greater than the front end lifting stroke, which better conforms to the human body's external structure and can effectively ensure the car seat's supportive feel for the passenger.
[0045] In actual use, when the hip-adjustable airbag 200 of this embodiment expands and lifts, the force applied by the hip-adjustable airbag 200 to the passenger is located behind the passenger's hip, and the direction of the force is not perpendicular to the passenger's hip. It lifts obliquely from a position slightly behind and below the passenger's hip, acting on the passenger's hip, which is more in line with the human body structure and can enhance the fit and wrapping feeling for the passenger. Furthermore, the hip-adjustable airbag 200 of this embodiment is set as a double-layer airbag, including a first bag body 21 and a second bag body 22 stacked together. When the hip-adjustable airbag 200 is inflated, the first bag body 21 and the second bag body 22 expand and unfold in a hinge shape with the fixed edge 20 as the pivot center, resulting in a large lifting stroke and high lifting efficiency.
[0046] Specifically, in this embodiment, multiple rows of hip-adjustable airbags 200 are arranged along the width of the seat cushion 100. Because the span of the human hip is relatively large, if only one row of hip-adjustable airbags 200 is arranged, the hip adjustment speed may be too slow, or the passenger's hips may not be adequately supported, thus affecting passenger comfort. Depending on the actual size of the hip-adjustable airbags 200, two, three, or more rows of hip-adjustable airbags 200 can be arranged. Furthermore, a seat pivot 300 is provided at the rear end of the seat cushion 100, and the multiple rows of hip-adjustable airbags 200 are arranged along the axial direction of the seat pivot 300.
[0047] In this solution, the arrangement and position of the hip-adjusting airbag 200 used for hip adjustment are optimized according to the specific shape and structure of the human hip. This can effectively enhance the wrapping feeling of the car seat towards the passenger's hip, reduce the foreign body sensation when fully inflated, and improve the fit with the passenger's hip, thus effectively ensuring passenger comfort.
Claims
1. A car seat with hip adjustment, comprising a seat cushion, characterized in that, The seat cushion includes a seat cushion foam, and a hip-adjusting air bag is disposed at the rear end of the seat cushion. The hip-adjusting air bag is located on the back side of the seat cushion foam, and a fixing edge is provided on the front side of the hip-adjusting air bag. The fixing edge is fixed to the seat cushion. When the hip-adjusting air bag is inflated, it is fixed and expanded on one side of the fixed edge, which lifts the seat cushion foam and supports the passenger's hips.
2. The car seat with hip adjustment according to claim 1, characterized in that, When the hip-adjustable airbag expands and lifts up, the force applied to lift the passenger is located behind the passenger's hip, and the direction of the force is not perpendicular to the passenger's hip.
3. The car seat with hip adjustment according to claim 1 or 2, characterized in that, After the hip-adjusting air bag expands and rises, the side of the hip-adjusting air bag opposite to the fixed side forms a fan-shaped surface.
4. The car seat with hip adjustment according to claim 1, characterized in that, The hip-adjustable air bag is configured as a double-layer air bag, including a first bag body and a second bag body stacked together, and both the first bag body and the second bag body are fixed to the seat cushion on one side by the fixed edge.
5. The car seat with hip adjustment according to claim 4, characterized in that, When the hip-adjustable air bag is inflated, the first bag and the second bag expand and unfold in a hinge-like manner with the fixed edge as the pivot center.
6. The car seat with hip adjustment according to claim 5, characterized in that, The lifting stroke at the rear end of the hip-adjusting air bag is greater than the lifting stroke at the front end of the hip-adjusting air bag.
7. The car seat with hip adjustment according to claim 1, characterized in that, Multiple rows of hip-adjusting air bags are provided along the width direction of the seat cushion.
8. The car seat with hip adjustment according to claim 7, characterized in that, The rear end of the seat cushion is provided with a seat pivot, and multiple rows of hip-adjusting airbags are arranged along the axial direction of the seat pivot.
9. The car seat with hip adjustment according to claim 1, characterized in that, After the gas in the hip-adjusting air bag is released, the hip-adjusting air bag is arranged in a rectangular shape.
10. The car seat with hip adjustment according to claim 1 or 9, characterized in that, After the gas in the hip-adjusting airbag is released, the hip-adjusting airbag provides no support for the passenger's hips. The hip-adjusting air bag is connected to an air tube, through which the air bag is inflated and deflated.