Cushion air bag and seat
By designing a seat cushion airbag including fixing parts and air bags, the problem of passengers taking off the seat belt when the car crashes is solved, and the safety effect of effectively raising the legs when the passengers lean back is achieved to prevent them from getting off the seat belt.
Patent Information
- Application Number
- CN202421846411.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
When existing cars collided, passengers are prone to break away from the seat belt when they were leaning back, resulting in the seat belt losing its protective effect.
A seat cushion airbag is designed, including a fixing member and an airbag. The airbag is composed of a first weaving fabric and a second weaving fabric that is integrally formed. The second weaving fabric is provided with a folding area, which is sewn with the first weaving fabric after folding. The airbag is inflatable and unfolded when the passenger leans back, raising the passenger's legs to prevent it from being disengaged from the seat belt.
When the passenger is leaning back, the cushion airbag is inflatable and deployed, effectively raising the passenger's legs to prevent it from being removed from the seat belt, and increasing the safety of the passenger.
Smart Images
Figure CN222859276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety airbags, in particular to a cushion airbag and a seat. Background Art
[0002] In the process of collision of existing automobiles, when the passenger is in a supine position, the passenger is easily out of the restraint of the safety belt and slides forward, causing the safety belt to lose its restraint and protection function for the passenger.
[0003] Therefore, it is necessary to design a cushion airbag and a seat that can still ensure that the safety belt is restrained when the passenger is in the reclining state. Utility Model Content
[0004] The utility model aims to overcome the deficiencies of the prior art and to provide a cushion airbag and a seat which can ensure the restraint of a safety belt when a passenger is in a reclining state.
[0005] The technical solution of the utility model provides a seat cushion airbag, including a fixing part and an airbag, wherein the fixing part is used to be fixedly connected to the seat cushion frame, and the airbag includes a first woven cloth and a second woven cloth that are integrally formed, and a folding area is provided on the second woven cloth. After the folding area is folded, the edge of the second woven cloth is sewn and connected to the edge of the first woven cloth. When the airbag is unfolded, the folding area unfolds toward the sitting surface of the seat cushion.
[0006] Furthermore, before the folding area is folded, the length of the second woven fabric is greater than the length of the first woven fabric; after the folding area is folded, the length of the second woven fabric is equal to the length of the first woven fabric.
[0007] Furthermore, the fixing member includes a plurality of connecting plates, each of which is provided with a through hole, and the connecting belt passes through the through hole and is connected to the seat cushion frame.
[0008] Furthermore, a diffuser is provided in the air bag, and the diffuser includes an inner bag and an outer bag. The inner bag is provided with an inflation hole and an air outlet hole. The gas generator enters the inner bag from the inflation hole, and the outlet end of the gas generator penetrates into the outer bag from the air outlet hole. The outer bag is provided with a diffusion hole, and the gas generated by the gas generator enters the air bag from the diffusion hole.
[0009] Furthermore, after the inner bag is sewn to one side of the outer bag, the outer bag is folded in half and the edges are sewn together.
[0010] Furthermore, after the inner bag and the outer bag are folded in half, the edges of the inner bag are sewn together, and the edges of the outer bag are sewn together.
[0011] Furthermore, the inner bag is made of uncoated cloth, and the outer bag is made of high-density high-coated cloth.
[0012] Furthermore, it also includes a gas generator, wherein two gas generators are included and are arranged along the front-to-back direction of the seat cushion.
[0013] The utility model also provides a seat, comprising a seat cushion and a backrest, and also comprising the seat cushion airbag described in any one of the above items, wherein the seat cushion airbag is arranged below or inside the seat cushion.
[0014] Furthermore, the seat cushion airbag is arranged at a position corresponding to a human thigh, and when the airbag is deployed, the airbag drives the front part of the seat cushion to rise.
[0015] After adopting the above technical solution, the following beneficial effects are achieved:
[0016] The utility model arranges a seat cushion airbag in the seat cushion. When a passenger is in a reclining position, after a vehicle is hit, the seat cushion airbag is inflated and expanded to lift the passenger's legs, thereby preventing the passenger from falling out of the safety belt and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:
[0018] Figure 1 It is a schematic diagram of a seat cushion airbag in one embodiment of the utility model;
[0019] Figure 2 is a schematic diagram of an air bag in one embodiment of the utility model;
[0020] Figure 3 is a schematic diagram of a diffuser in one embodiment of the utility model;
[0021] Figure 4 is a schematic diagram of a diffuser in another embodiment of the utility model;
[0022] Figure 5 This is a schematic diagram of an air bag after it is deployed in one embodiment of the utility model;
[0023] Figure 6 This is a state diagram of the seat in one embodiment of the utility model when the air bag is deployed.
[0024] Reference table of reference numerals:
[0025] Fixing member 1: through hole 11;
[0026] Airbag 2: first woven fabric 21, second woven fabric 22, folding area 221;
[0027] Diffuser 3: inner bag 31, outer bag 32, inflation hole 311, air outlet hole 312, diffusion hole 321;
[0028] The seat cushion 10 , the backrest 20 , and the seat cushion frame 30 . DETAILED DESCRIPTION
[0029] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.
[0030] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a variety of structural modes and implementation modes can be replaced by those skilled in the art. Therefore, the following specific implementation methods and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.
[0031] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.
[0032] In some embodiments of the present invention, Figure 1-Figure 2 and Figure 6 As shown, the seat cushion airbag includes a fixing part 1 and an airbag 2, the fixing part 1 is used to be fixedly connected to the seat cushion frame 30, the airbag 2 includes an integrally formed first woven fabric 21 and a second woven fabric 22, a folding area 221 is provided on the second woven fabric 22, after the folding area 221 is folded, the edge of the second woven fabric 22 is sewn and connected to the edge of the first woven fabric 21, and when the airbag 2 is unfolded, the folding area 221 unfolds toward the sitting surface of the seat cushion 10.
[0033] Specifically, Figure 1 As shown, the fixing member 1 is located on one side of the air bag 2, and a plurality of fixing members 1 are arranged in a row. Figure 6 As shown, the fixing member 1 is fixedly connected to the seat cushion frame 30 and is used to fix the airbag 2 to prevent the airbag 2 from falling out during the deployment process.
[0034] like Figure 6 As shown, the airbag 2 is arranged below or inside the seat cushion 10. When the airbag 2 is inflated and deployed, the seat cushion 10 can be pushed up, thereby raising the legs of the passenger, limiting the passenger from getting out of the safety belt, and improving safety.
[0035] like Figure 2As shown, the airbag 2 includes a first woven fabric 21 and a second woven fabric 22 made of a whole piece of woven fabric, and the area of the first woven fabric 21 is larger than that of the second woven fabric 22. A folding area 221 is provided on the second woven fabric 22. Before sewing, the folding area 221 needs to be folded first, and then folded along the boundary line between the first woven fabric 21 and the second woven fabric 22, so that the edges of the first woven fabric 21 and the second woven fabric 22 are aligned, and then the edges of the first woven fabric 21 and the second woven fabric 22 are sewn, and at this time, the two ends of the folding area 221 are also sewn together with the edges of the first woven fabric 21.
[0036] like Figure 5 As shown, when the vehicle is hit, the airbag 2 is inflated and deployed, and the folded area 221 of the second fabric 22 is deployed toward the seat surface of the seat cushion 10, so that the volume of the airbag 2 toward the seat surface is larger, which is more conducive to the rapid lifting of the seat cushion 10. At the same time, the first fabric 21 is deployed toward one side of the seat cushion frame 30, and the seat cushion frame 30 further lifts the airbag 2 toward the seat cushion 10.
[0037] Furthermore, if Figure 2 As shown, before the folding area 221 is folded, the length of the second woven fabric 22 is greater than the length of the first woven fabric 21 ; after the folding area 221 is folded, the length of the second woven fabric 22 is equal to the length of the first woven fabric 21 .
[0038] in, Figure 2 The "length" direction refers to the vertical direction. Figure 2 The left side is an unfolded view of the first woven cloth 21 and the second woven cloth 22 before sewing, and the right side is a schematic diagram of the first woven cloth 21 and the second woven cloth 22 after being folded and sewn.
[0039] Before the folding area 221 is folded, the length of the second woven fabric 22 is greater than the length of the first woven fabric 21 .
[0040] After the folding area 221 is folded, the length of the second fabric 22 is equal to the length of the first fabric 21. Thus, when the first fabric 21 and the second fabric 22 are folded in half, the edge of the first fabric 21 and the edge of the second fabric 22 completely overlap, facilitating sewing connection.
[0041] Furthermore, if Figure 1 As shown, the fixing member 1 includes a plurality of connecting plates, each of which is provided with a through hole 11 , and the connecting belt passes through the through hole 11 and is connected to the seat cushion frame 30 .
[0042] Specifically, the connecting piece and the airbag 2 are made of a whole piece of woven cloth, and a plurality of through holes 11 are provided on the connecting piece, which can be fixedly connected to the seat cushion frame 30 by bolts or screws. When the airbag 2 is inflated and deployed, the connecting piece is used to pull the rear of the airbag 2 to prevent the displacement of the airbag 2.
[0043] Furthermore, if Figure 1 and Figure 3 As shown, a diffuser 3 is provided in the airbag 2, and the diffuser 3 includes an inner bag 31 and an outer bag 32. The inner bag 31 is provided with an inflation hole 311 and an outlet hole 312. The gas generator (not shown) enters the inner bag 31 from the inflation hole 311, and the outlet end of the gas generator penetrates into the outer bag 32 from the outlet hole 312. The outer bag 32 is provided with a diffusion hole 321, and the gas generated by the gas generator enters the airbag 2 from the diffusion hole 321.
[0044] Specifically, Figure 1 As shown, the diffuser 3 is arranged inside the airbag 2, the gas generator extends into the diffuser 3, and the gas enters the airbag 2 through the diffuser 3. The diffuser 3 can guide the gas into the airbag 2 and reduce the temperature of the gas to prevent the high-temperature gas from damaging the airbag 2.
[0045] like Figure 3 As shown, the diffuser 3 includes an inner bag 31 and an outer bag 32. The gas generator passes through the inner bag 31 and then into the outer bag 32. The gas first enters the outer bag 32. The rushing gas flattens the inner bag 31, which seals the inflation hole 311 to prevent gas leakage. The remaining gas enters the airbag 2 from the diffusion hole 321.
[0046] The inner bag 31 includes an inflation hole 311 and an air outlet hole 312. Figure 3 The middle inflation hole 311 is located at the bottom of the inner bag 31, and the outlet hole 312 is located on the left side of the inner bag 31. The gas generator penetrates into the inner bag 31 from the inflation hole 311 at the bottom, and then penetrates into the outer bag 32 from the outlet hole 312. Since there is no seal between the inflation hole 311 and the gas generator, the gas is compressed by the inner bag 31 during inflation to achieve a sealing effect.
[0047] Two diffusion holes 321 are provided on the outer bag 32. After the gas enters the outer bag 32, it flows into the interior of the airbag 2 from the diffusion holes 321. The diffusion holes 321 play a role in guiding the gas, and the rest of the outer bag 32 can block particulate matter in the gas and protect the airbag 2.
[0048] Furthermore, if Figure 3 As shown, after one side of the inner bag 31 and the outer bag 32 are sewn, the outer bag 32 is folded in half and the edges are sewn together.
[0049] in, Figure 3 The left side of the figure is a schematic diagram of the outer bag 32 before it is folded in half, and the right side is a schematic diagram of the outer bag 32 after it is folded in half. Figure 3 The inner bag 31 is located on one side of the outer bag 32. The upper and lower sides of the inner bag 31 are first sewn to the outer bag 32, and then the outer bag 32 is folded in half along the center line of the two diffusion holes 321. Finally, the edge of the outer bag 32 is sewn together with the right side of the inner bag 31, and the left side of the inner bag 31 is left as the air outlet 312.
[0050] Alternatively, if Figure 4 As shown, after the inner bag 31 and the outer bag 32 are folded in half, the edges of the inner bag 31 are sewn together, and the edges of the outer bag 32 are sewn together.
[0051] in, Figure 4 The left side of the figure is a schematic diagram of the outer bag 32 before it is folded in half, and the right side is a schematic diagram of the outer bag 32 after it is folded in half. Figure 4 The inner bag 31 has a larger area. After the inner bag 31 and the outer bag 32 are folded together, the lower side and the right side of the inner bag 31 are sewn first, and the left side is left as an air outlet 312, and then the edge of the outer bag 32 is sewn.
[0052] Preferably, the inner bag 31 is made of uncoated cloth, and the outer bag 32 is made of high-density high-coated cloth. The inner bag 31 is relatively soft and easily flattened by gas; the outer bag 32 is relatively thick and hard, which is convenient for the gas to be led out.
[0053] Preferably, there are two gas generators, which are arranged along the front-rear direction of the seat cushion 10 , and the two gas generators can realize the rapid deployment of the airbag 2 .
[0054] Optionally, only one gas generator may be provided.
[0055] In some embodiments of the present invention, Figure 6 As shown, the seat includes a seat cushion 10 and a backrest 20 , and also includes a seat cushion airbag in any of the above embodiments, and the seat cushion airbag is arranged under or inside the seat cushion 10 .
[0056] Preferably, the seat cushion airbag is arranged at a position corresponding to the human thigh. When the airbag 2 is deployed, the airbag 2 drives the front part of the seat cushion 10 to be lifted, which can more effectively prevent the passenger from falling out of the seat belt in the event of a collision.
[0057] The utility model arranges a seat cushion airbag in the seat cushion. When a passenger is in a reclining position, after a vehicle is hit, the seat cushion airbag is inflated and expanded to lift the passenger's legs, thereby preventing the passenger from falling out of the safety belt and improving safety.
[0058] The above description is only the principle and preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this field, on the basis of the principle of the utility model, several other variations can be made, which should also be regarded as the protection scope of the utility model.
Claims
1. A seat cushion airbag, characterized in that: It includes a fixing part and an air bag, the fixing part is used to be fixedly connected to the seat cushion frame, the air bag includes a first woven cloth and a second woven cloth formed in one piece, a folding area is provided on the second woven cloth, after the folding area is folded, the edge of the second woven cloth is sewn and connected with the edge of the first woven cloth, and when the air bag is unfolded, the folding area unfolds toward the seat surface of the seat cushion.
2. The seat cushion airbag according to claim 1, characterized in that: Before the folding area is folded, the length of the second woven fabric is greater than the length of the first woven fabric; after the folding area is folded, the length of the second woven fabric is equal to the length of the first woven fabric.
3. The seat cushion airbag according to claim 1, characterized in that: The fixing member comprises a plurality of connecting plates, each of which is provided with a through hole, and a connecting belt is connected to the seat cushion frame after passing through the through hole.
4. The seat cushion airbag according to claim 1, characterized in that: A diffuser is provided inside the air bag, and the diffuser includes an inner bag and an outer bag. The inner bag is provided with an inflation hole and an air outlet hole. The gas generator enters the inner bag from the inflation hole, and the outlet end of the gas generator penetrates into the outer bag from the air outlet hole. The outer bag is provided with a diffusion hole, and the gas generated by the gas generator enters the air bag from the diffusion hole.
5. The seat cushion airbag according to claim 4, characterized in that: After the inner bag and one side of the outer bag are sewn, the outer bag is folded in half and the edges are sewn together.
6. The seat cushion airbag according to claim 4, characterized in that: After the inner bag and the outer bag are folded in half, the edges of the inner bag are sewn together, and the edges of the outer bag are sewn together.
7. The seat cushion airbag according to claim 4, characterized in that: The inner bag is made of uncoated cloth, and the outer bag is made of high-density and high-coated cloth.
8. The seat cushion airbag according to claim 1, characterized in that: The seat cushion further includes two gas generators, which are arranged along the front-rear direction of the seat cushion.
9. A seat, comprising a seat cushion and a backrest, characterized in that: It also includes the seat cushion airbag according to any one of claims 1 to 8, wherein the seat cushion airbag is arranged below or inside the seat cushion.
10. The seat according to claim 9, characterized in that The seat cushion airbag is arranged at a position corresponding to a human thigh. When the airbag is deployed, the airbag drives the front part of the seat cushion to rise.