Air bag structure of far-end air bag

Abstract

An air bag structure of a far-end air bag comprises a head cavity and a thoracic cavity which are formed by sewing bag pieces, the head cavity is located on one side of the upper end of the thoracic cavity and communicated with the thoracic cavity, and the air bag structure is characterized in that a supporting cavity is formed in the upper portion or the lower portion of the other side of the thoracic cavity and used for being unfolded in the direction of a co-driver side seat when unfolded; inner pulling pieces are sewn between the supporting cavity and the chest cavity and between the head cavity and the chest cavity respectively, and a plurality of vent holes are formed in the inner pulling pieces and used for communicating the supporting cavity with the head cavity and the chest cavity respectively and limiting the unfolding state of the air bag. The automobile seat has the advantages that the supporting cavity is unfolded towards the co-driver side seat when being unfolded; the head cavity and the thoracic cavity can be effectively supported, so that the air bag can be stably supported between front passenger seats after being unfolded, reliable and effective protection is provided for a driver seat passenger and a co-driver passenger, the application range is wide, and a good restraining effect can also be achieved on a vehicle model with a low central armrest height or without a central armrest.

Description

Technical Field

[0001] The utility model relates to an air bag structure, in particular to an air bag structure of a distal air bag. Background Art

[0002] In the modern automobile industry, airbags, as a key passive safety system, play a vital role in reducing the damage to passengers in vehicle collisions. Currently, the European New Car Assessment Standard Euro NCAP 2024 and the China Automotive Research Association C-NCAP 2024 have been implemented. At present, the remote occupant protection airbag is arranged between the two seats to prevent the occupants in the car from colliding with each other in a side collision. At the same time, in a side collision, it protects the remote occupants in the car from excessive movement and hitting the interior decoration and causing injury. This airbag is also called a remote airbag or a central airbag.

[0003] Publication No. CN114043961A discloses a distal airbag structure, which is formed by a bag sheet connected by folding and sewing. When the bag sheet is unfolded, it presents a V-shape with unequal sides, so that when the airbag is inflated and unfolded, a head protection area and a torso support area arranged up and down are formed, and a neck support area is located on one side of the airbag and extends outward. The head protection area, the torso support area and the neck support area are interconnected.

[0004] This remote airbag is installed on the seat back near the armrest box of the driver's seat. After deployment, it is supported on the armrest box through the bottom of the airbag. The head protection area and neck support area on the upper part of the airbag support the head and neck of the occupant respectively, thereby reducing the damage to the head and neck of the occupant in side collisions. However, for some models with low central armrests or no central armrests, this design often has poor protection effect. After deployment, due to the lack of effective support and limit of the airbag, it is difficult to provide effective protection for the occupants. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an airbag structure of a distal airbag which can provide effective protection for passengers and has a wide application range.

[0006] The technical solution of the utility model is as follows:

[0007] A distal airbag structure comprises a head chamber and a chest chamber formed by sewing bag sheets, wherein the head chamber is located on one side of the upper end of the chest chamber and is connected with the chest chamber, and the special features thereof are: a support chamber is provided on the upper or lower part of the other side of the chest chamber, for unfolding toward the passenger seat during unfolding; inner pull tabs are sewn between the support chamber and the head chamber and the chest chamber, respectively, and a plurality of ventilation holes are provided on the inner pull tabs, for respectively connecting the support chamber and the head chamber and the chest chamber, and limiting the unfolding form of the airbag.

[0008] As a further preference, the bag piece includes a first bag piece and a second bag piece. The chest chamber is formed by sewing the first bag piece and the second bag piece after they are folded relative to each other, and the head chamber is formed by sewing the upper part of the first bag piece after it is folded in half.

[0009] As a further preference, the support chamber is formed by sewing the upper or lower part of the second bag piece after it is folded in half or by sewing two halves of a third fabric piece.

[0010] As a further preference, the included angle A between the midlines of the head chamber and the chest chamber after they are unfolded satisfies 60° ≤ A ≤ 105°.

[0011] As a further preference, the distance B between the inner connection of the head chamber and the chest chamber and the seat cushion of the occupant seat is B ≥ 410 mm.

[0012] As a further preference, a generator socket is reserved at the rear side of the lower part of the chest chamber for inserting a gas generator; a V-shaped pull strap is provided between the outside of the generator socket and the lower edge of the chest chamber for restricting the unfolded shape of the chest chamber.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By providing a support chamber at the upper or lower part of the other side of the chest chamber, the support chamber unfolds towards the direction of the co-pilot seat when it unfolds; it can effectively support the head chamber and the chest chamber, so that the airbag can be stably supported between the front row occupant seats after unfolding, thereby providing reliable and effective protection for the driver and co-pilot occupants. It has a wide range of applications and can also play a good restraining role for models with a low center console or no center console. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the flat layout after sewing of the present utility model.

[0016] Figure 2 is an exploded view of the present utility model before sewing.

[0017] Figure 3 is a schematic diagram of the present utility model after inflation and unfolding.

[0018] Figure 4 is a schematic diagram of the present utility model after installation and unfolding.

[0019] In the figure: head chamber 1, first bag piece 101, second bag piece 102, chest chamber 2, support chamber 3, pull strap 4, inner pull piece 5, inner pull piece 6, driver seat 7. Detailed Embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0021] As Figures 1 to 3 shown, an airbag structure of a distal airbag involved in the present utility model includes a head chamber 1 and a chest chamber 2 formed by sewing bag pieces. The head chamber 1 is located on one side of the upper end of the chest chamber 2 and is connected to the chest chamber 2. A support chamber 3 is provided on the upper or lower part of the other side of the chest chamber 2 for unfolding towards the co-pilot seat side when unfolded; inner pull tabs 5 and 6 are respectively sewn between the support chamber 3 and the head chamber 1 and the chest chamber 2. A plurality of ventilation holes are provided on the inner pull tabs 5 and 6 for respectively connecting the support chamber 3 and the head chamber 1 and the chest chamber 2 and restricting the unfolding shape of the airbag. In this embodiment, the support chamber 3 is taken as an example of being provided on the upper part of the other side of the chest chamber 2.

[0022] The bag pieces include a first bag piece 101 and a second bag piece 102. The chest chamber 2 is formed by overlapping and sewing the generator wrapping parts at the lower parts of the first bag piece 101 and the second bag piece 102 and then folding and sewing them relatively. The head chamber 1 is formed by folding the upper part of the first bag piece 101 in half and sewing the two side edges. The support chamber 3 is formed by folding the upper or lower part of the second bag piece 102 in half and sewing the two sides or by folding a third piece of cloth in half and sewing. In this embodiment, the support chamber 3 is taken as an example of being formed by folding the upper part of the second bag piece 102 in half and sewing.

[0023] The included angle A between the midlines of the head chamber 1 and the chest chamber 2 after unfolding satisfies 60° ≤ A ≤ 105°. The vertical distance B between the inner connection of the head chamber 1 and the chest chamber 2 and the seat cushion of the occupant seat is B ≥ 410 mm.

[0024] A generator socket is reserved at the rear side of the lower part of the chest chamber 2 for inserting a gas generator; a V-shaped pull belt 4 is provided on the first bag piece 101 between the outside of the generator socket and the lower edge of the chest chamber 2 for restricting the unfolding shape of the chest chamber 2.

[0025] As Figure 4As shown, the distal airbag is installed on the seat back of the driver's seat 7 in the vehicle near the co-pilot side. When a side collision occurs on the co-pilot side during vehicle driving, the driver will hit the co-pilot occupant. At this time, the airbag unfolds between the driver and the co-pilot occupant. After unfolding, the head chamber 1 quickly extends to the position of the driver's head, enabling the driver's head to be supported by the airbag faster and protecting the driver's head and neck. At the same time, when the support chamber 3 unfolds, it unfolds towards the co-pilot side seat direction and supports on the co-pilot side seat back, which can effectively support the head chamber 1 and the chest chamber 2, so that the airbag can be stably supported between the front row occupant seats after unfolding, thereby providing reliable and effective protection for the driver and co-pilot occupants.

[0026] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. An airbag structure of a distal airbag, comprising a head chamber and a thoracic chamber formed by stitching bag pieces, the head chamber being located on one side of the upper end of the thoracic chamber and communicating with the thoracic chamber, characterized in that: A support chamber is provided at the upper or lower part of the other side of the chest chamber, which is configured to deploy towards the co-pilot seat side when unfolded; inner pull tabs are respectively stitched between the support chamber and the head chamber and the chest chamber, and a plurality of ventilation holes are provided on the inner pull tabs for respectively communicating the support chamber and the head chamber with the chest chamber and restricting the deployment shape of the airbag.

2. The airbag structure of a distal airbag according to claim 1, characterized in that: The bag piece includes a first bag piece and a second bag piece. The chest chamber is formed by stitching the first bag piece and the second bag piece after they are folded relative to each other. The head chamber is formed by sewing the upper part of the first bag piece after it is folded in half.

3. The airbag structure of a distal airbag according to claim 2, characterized in that: The support chamber is formed by sewing the upper or lower part of the second bag piece after it is folded in half or by stitching the third cloth piece after it is folded in half.

4. The airbag structure of a distal airbag according to claim 1, characterized in that: The included angle A between the midlines of the head chamber and the chest chamber after deployment satisfies 60° ≤ A ≤ 105°.

5. The airbag structure of a distal airbag according to claim 4, characterized in that: The distance B between the inner connection of the head chamber and the chest chamber and the seat cushion of the occupant seat is B ≥ 410 mm.

6. The airbag structure of a distal airbag according to any one of claims 1-5, characterized in that: in A generator socket is reserved at the rear side of the lower part of the chest chamber for inserting a gas generator; a V-shaped pull belt is provided between the outside of the generator socket and the lower edge of the chest chamber for restricting the deployment shape of the chest chamber.

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