Seat back airbag arrangement for fast recovery of sitting position

Abstract

The utility model relates to the technical field of automobile backrest air bag, especially to a seat backrest air bag device of quick recovery sitting posture, including seat frame and backrest air bag, seat frame includes bottom frame and the backrest frame of rotation connection with bottom frame, backrest frame includes two parallelly arranged side plates, and the bottom between two side plates is fixed with the bottom plate, and the bottom plate is fixed with the guide plate, and the backrest air bag is installed on the guide plate, and the backrest air bag inside is provided with gas generator, and the inflation direction of air bag when backrest air bag point explodes is to the occupant backrest. The utility model has the technical effect that can push the occupant of big angle lying posture to the design sitting posture stably and quickly, and maintains the spine health.

Description

Technical Field

[0001] This utility model relates to the technical field of seat back airbags, and in particular to a seat back airbag device for quickly restoring a sitting posture. Background Technology

[0002] In the modern automotive industry's continuous pursuit of a balance between ride comfort and safety, zero-gravity seats, as an important feature for enhancing the driving experience, have seen their safety system design and optimization become a key research direction. However, existing zero-gravity seats still have many technical challenges that urgently need to be addressed in terms of posture transition and collision safety.

[0003] In terms of zero-gravity posture transformation and spinal protection, in order to meet users' needs for a comfortable driving experience, zero-gravity seats can be adjusted to a large angle of tilt or even a near-flat posture, so that the human body is in a relaxed state similar to zero gravity. However, when the vehicle faces emergency conditions (such as collision scenarios), if the pressure changes on the spine and other body parts cannot be properly controlled, it is very easy to cause injury. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a seat back airbag device for quickly restoring a sitting posture.

[0005] This utility model provides a seat back airbag device for quickly restoring a sitting posture, which adopts the following technical solution: A seat back airbag device for quick recovery of sitting posture includes a seat frame and a back airbag. The seat frame includes a bottom frame and a back frame rotatably connected to the bottom frame. The back frame includes two parallel side plates. A bottom plate is fixed between the bottoms of the two side plates. A guide plate is fixed on the bottom plate. The back airbag is mounted on the guide plate. A gas generator is provided inside the back airbag. When the back airbag is detonated, the expansion direction of the airbag is towards the occupant's back.

[0006] Optionally, the bottom of the gas generator is fixed with multiple bolts that pass through the bottom of the backrest airbag, the bottom of the guide plate, and the base plate and are threaded with nuts.

[0007] Optionally, one end of the gas generator is equipped with an air guide cover to prevent the backrest airbag from burning out when the gas generator is working.

[0008] Optionally, when the backrest airbag is deployed, the thicker, thicker part corresponds to the back of the human body, particularly the muscular areas.

[0009] Compared with the prior art, the present invention has the following technical effects: This invention features precise posture conversion, reduced spinal pressure, and precise airbag deployment control technology for the backrest. It can smoothly and quickly push passengers in a reclining position to a designed sitting position, with the pushing force evenly conforming to the spinal curve, avoiding instantaneous impact and compression on the spine, reducing the risk of acute and chronic injuries, and maintaining spinal health. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the backrest frame in this utility model; Figure 3 This is a schematic diagram of the guide plate and backrest airbag in this utility model; Figure 4 This is a schematic diagram of the guide plate and backrest airbag after they explode in this utility model; Figure 5 This is a schematic diagram of the gas generator and the gas guide shroud in this utility model; Figure 6 This is a schematic diagram of the backrest airbag being installed on the guide plate in this utility model; Figure 7 This is a schematic diagram showing how a person changes from a lying position to a normal sitting position after the airbag explodes in this utility model.

[0011] Explanation of reference numerals in the attached drawings: 1. Seat frame; 11. Bottom frame; 12. Backrest frame; 121. Side panel; 122. Bottom panel; 123. Headrest frame; 124. Guide plate; 125. S-shaped spring; 2. Backrest airbag; 3. Triggering system; 31. Gas generator; 311. Bolt; 312. Air guide cover. Detailed Implementation

[0012] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 The present invention will be described in further detail below.

[0013] Reference Figures 1-7 This utility model discloses a seat back airbag device for quickly restoring a sitting posture, including a seat frame 1, a back airbag 2, and a triggering system 3. The seat frame 1 is the basic support of the entire seat structure and is made of high-strength metal material, which can be high-strength alloy steel, with good strength and stability, and can withstand various forces received by the seat during vehicle operation.

[0014] The seat frame 1 includes a bottom frame 11 and a backrest frame 12. The seat frame 1 and the bottom frame 11 are rotatably connected by a rotatable connection structure, so that the backrest frame 12 can be adjusted within a certain angle range to achieve a large-angle reclining posture such as zero gravity.

[0015] The backrest frame 12 includes two parallel side plates 121, with a base plate 122 fixed between the two side plates 121. The base plate 122 is located at the bottom of the base plate 122, and a headrest frame 123 is fixed between the tops of the two side plates 121. A guide plate 124 is provided between the two side plates 121, with its bottom fixed to the base plate 122. The bottom of the guide plate 124 is bent upward to form a mounting groove, in which the backrest airbag 2 is located. Multiple S-shaped springs 125 are fixed between the two side plates 121, with the guide plate 124 located in front of the S-shaped springs 125.

[0016] The guide plate 124 is used to guide the inflation direction of the backrest airbag 2 after it is detonated. The detonated backrest airbag 2 is longitudinally elongated, conforms to the curve of the human spine, and is arranged in the central axis area of ​​the seat back, between the seat back frame and the seat foam and upholstery. The backrest airbag 2 deploys to cover the upper body area of ​​the occupant.

[0017] The triggering system 3 includes a gas generator 31 and an ECU controller. The ECU controller is mounted on the center console and is connected to the gas generator 31 via a wiring harness. A gas guide shroud 312 is provided at one end of the gas generator 31. The gas guide shroud 312 is generally shaped like a sieve, with a rounded bottom that fits snugly against the gas generator 31. The gas guide shroud 312 can be made of metal or non-metal materials and prevents the backrest airbag 2 from being burned by high-temperature gas.

[0018] Two bolts 311 are welded to the bottom of the gas generator 31, one of which passes through the bottom of the air guide cover 312. The gas generator 31 is located in the backrest airbag 2, with one end of the gas generator 31, away from the air guide cover 312, extending from the side of the backrest airbag 2. The gas generator 31 extending out of the backrest airbag 2 is connected to the ECU controller via a wiring harness. The bolt 311 passes through the bottom of the backrest airbag 2, the guide plate 124, and the base plate 122, and is threaded with a nut. The ECU controller can control the gas generator 31 to ignite, thereby inflating the backrest airbag 2.

[0019] The backrest airbag 2 is installed inside the backrest frame 12 near the human spine. The backrest airbag 2 uses multi-layered composite sealing material, providing a gentle thrust upon deployment. After deployment, the backrest airbag 2 covers the upper body area of ​​the occupant. Figure 4 As shown, after the backrest airbag 2 is deployed, the shape of the backrest airbag 2 is similar to that of a pillow, which is larger at the top and smaller at the bottom. The thicker part corresponds to the back of the human body and the part with more muscles. The size of the thickest part of the backrest airbag 2 can be adjusted according to different car models and environments.

[0020] The implementation principle of the seat back airbag device for quick recovery of sitting posture of this utility model is as follows: When a vehicle collision occurs, the ECU controller can control the gas generator 31 to ignite, the gas generator 31 inflates the back airbag 2, and the back airbag 2 is detonated. After the back airbag 2 is detonated, it can push the occupant who is lying at a large angle to return to a sitting position.

[0021] The seat back airbag device of this utility model can achieve precise posture conversion, reduce spinal pressure, and the precise point-deployment control technology of the back airbag 2 can smoothly and quickly push the occupant in a large-angle reclining position to the designed sitting position. The push force is evenly conforms to the spinal curve, avoiding instantaneous impact and compression on the spine, reducing the risk of acute and chronic injury, and maintaining spinal health.

[0022] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A seat back airbag device for quickly restoring a sitting posture, comprising a seat frame (1) and a back airbag (2), wherein the seat frame (1) comprises a bottom frame (11) and a back frame (12) rotatably connected to the bottom frame (11), the back frame (12) comprises two parallel side plates (121), a base plate (122) is fixed between the bottoms of the two side plates (121), and a guide plate (124) is fixed on the base plate (122), characterized in that: The backrest airbag (2) is installed on the guide plate (124). A gas generator (31) is installed inside the backrest airbag (2). When the backrest airbag (2) is detonated, the expansion direction of the airbag is towards the occupant's backrest.

2. The seat back airbag device for rapid recovery of sitting posture according to claim 1, characterized in that: The bottom of the gas generator (31) is fixed with multiple bolts (311), which pass through the bottom of the backrest airbag (2), the bottom of the guide plate (124) and the base plate (122) and are threaded with nuts.

3. The seat back airbag device for rapid recovery of sitting posture according to claim 1 or 2, characterized in that: One end of the gas generator (31) is provided with an air guide cover (312) that can prevent the backrest airbag (2) from burning when the gas generator (31) is working.

4. The seat back airbag device for rapid recovery of sitting posture according to claim 1, characterized in that: When the backrest airbag (2) is detonated, the larger part at the top and the smaller part at the bottom, with the thicker part corresponding to the back of the human body and the part with more muscles.

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