Airbag and airbag assembly

Abstract

The utility model provides a safety air bag and a safety air bag assembly. The safety airbag is used for providing protection on the side face of a passenger and comprises an air bag body and a storage state, the air bag body is provided with a first cavity and a second cavity which are in fluid communication with each other, the second cavity is fixed to a front side face plate of the first cavity, and in the unfolded state, the first cavity and the second cavity are in fluid communication with each other, and the second cavity is fixed to a front side face plate of the first cavity. The first chamber has a first deployment width, the second chamber has a second deployment width, and the first deployment width is greater than the second deployment width.

Description

Technical Field

[0001] The utility model relates to a safety device for vehicles, and particularly, to an airbag and an airbag assembly including the airbag. Background Art

[0002] Safety devices, such as airbags, are applied in automobiles to protect occupants. Existing automotive airbags include, for example, airbags arranged in the steering wheel, airbags arranged in the instrument panel, curtain airbags arranged on the inner sidewalls of the vehicle, and, in order to more reasonably utilize the limited space inside the vehicle, overhead airbags arranged on the top of the vehicle. When a vehicle collides or is impacted, the gas generator of the airbag will receive a signal transmitted via a wire harness connected to the gas generator, and thus explode. Then, the gas generated by the explosion will quickly inflate the folded airbag of the airbag. After inflation, the airbag expands and will immediately extend from the predetermined installation position of the vehicle to the predetermined protection position around the occupant, thereby preventing the occupant from being injured by the impact.

[0003] For an airbag that provides side protection to an occupant, in its deployed state, it generally needs to be supported by other devices inside the vehicle (such as the center console) to maintain its stability.

[0004] Therefore, there is a need for an airbag with a more reasonable support method in the deployed state. Summary of the Utility Model

[0005] The utility model provides an airbag and an airbag assembly. When in the deployed state, the airbag of the airbag is supported by two adjacent seats, and thus has a more reasonable support method.

[0006] One aspect of the utility model provides an airbag for providing protection to the side of a passenger, and includes:

[0007] An airbag having a deployed state and a stored state,

[0008] Wherein,

[0009] The airbag has a first chamber and a second chamber that are in fluid communication with each other. The second chamber is fixed on the front panel of the first chamber. In the deployed state, the first chamber has a first deployed width, the second chamber has a second deployed width, and the first deployed width is greater than the second deployed width.

[0010] According to an embodiment of the utility model, in the deployed state, the first end and the second end of the first chamber in the width direction are respectively used to abut against a first external member and a second external member.

[0011] According to an embodiment of the present utility model, it further includes an inner pulling belt disposed inside the second chamber and an outer pulling belt disposed outside the second chamber.

[0012] According to an embodiment of the present utility model, one inner pulling belt is provided, and opposite ends of the inner pulling belt are respectively fixed to the left panel and the right panel that are opposite in the width direction of the second chamber.

[0013] According to an embodiment of the present utility model, one outer pulling belt is provided, one end of the outer pulling belt is fixed to the front edge of the second chamber, and the other end of the outer pulling belt is fixed to the first external member or the second external member.

[0014] According to an embodiment of the present utility model, the outer pulling belt has a wider end and a narrower end that are opposite to each other, and the wider end is fixed to the front edge of the second chamber.

[0015] According to an embodiment of the present utility model, a plurality of communication holes are provided between the first chamber and the second chamber, and the plurality of communication holes are arranged at intervals along the height direction of the second chamber.

[0016] According to an embodiment of the present utility model, in the deployed state, the first chamber has a first deployment height, the second chamber has a second deployment height, and the first deployment height is less than the second deployment height.

[0017] According to an embodiment of the present utility model, in the deployed state, the upper end and the lower end of the second chamber are respectively deflected by a predetermined angle with respect to the height direction of the airbag.

[0018] According to an embodiment of the present utility model, the predetermined angle is set within the range of 0 - 45 degrees.

[0019] Another aspect of the present utility model provides an airbag assembly, which includes the airbag according to any one of the above, a first seat and a second seat that are adjacent to each other along the width direction of the vehicle, and in the deployed state, the airbag is positioned between the first seat and the second seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features, advantages, and technical effects of exemplary embodiments of the present utility model will be described below with reference to the drawings. In the drawings, the same reference numerals denote the same elements, where:

[0021] Figure 1 A schematic diagram showing an airbag and an airbag assembly according to an embodiment of the present utility model.

[0022] Figure 2Shows another schematic diagram of an airbag and an airbag assembly according to an embodiment of the present invention.

[0023] Figure 3 Shows a schematic diagram of an airbag according to an embodiment of the present invention.

[0024] Figure 4 Shows a schematic diagram of an airbag and an airbag assembly according to another embodiment of the present invention. Detailed implementation manners

[0025] The following will describe the detailed implementation manners of the airbag and the airbag assembly according to the present invention with reference to the accompanying drawings. The following detailed description and the drawings are used to exemplarily illustrate the principle of the present invention. The present invention is not limited to the described preferred embodiments. Each of the embodiments described in the present invention can be used alone or in any combination. The protection scope of the present invention is defined by the claims.

[0026] In addition, spatially relative terms (such as "upper", "lower", "left", and "right", etc.) are used to describe the relative positional relationship between elements shown in the drawings. Therefore, the spatially relative terms can be applied to directions different from those shown in the drawings when in use. Obviously, although for the sake of easy explanation, all these spatially relative terms refer to the directions shown in the drawings, those skilled in the art can understand that directions different from those shown in the drawings can be used.

[0027] Figure 1 Shows a schematic diagram of an airbag and an airbag assembly according to an embodiment of the present invention. Figure 2 Shows another schematic diagram of an airbag and an airbag assembly according to an embodiment of the present invention. Figure 3 Shows a schematic diagram of an airbag according to an embodiment of the present invention. The following refers to Figures 1 to 3 Describe an airbag and an airbag assembly according to an embodiment of the present invention.

[0028] Refer to Figure 1 And Figure 2 As shown in Figure 1 Shows the airbag assembly 1 when observed from the front of the vehicle towards the rear side, Figure 2 Shows the airbag assembly 1 when observed from the top of the vehicle towards the bottom. As Figure 1 And Figure 2As shown, the airbag assembly 1 includes an airbag 10, a first seat 20 and a second seat 30 which are arranged adjacent to each other in the width direction of the vehicle. In one example, the first seat 20 and the second seat 30 are, for example, the front seats of the vehicle. That is to say, the second seat 30 is set as the driver's seat. And hereinafter, based on this example, the airbag 10 according to the embodiment of the present invention will be described in detail.

[0029] Continue to refer to Figure 1 and Figure 2 . The airbag 10 is used to provide protection for the passengers on the side, and includes an airbag 11 and a gas generator (not shown). The gas generator can be fixed, for example, at the seat frame of the first seat 20 or the second seat 30. The airbag 11 has a deployed state and a stored state. The gas generator is used to generate gas, and the gas enters the airbag 11 in the stored state and thereby causes the airbag 11 to expand into the deployed state. Specifically, in Figure 1 and Figure 2 the airbag 11 shown is in the deployed state. As clearly shown in the figure, the airbag 10 is located between the first seat 20 and the second seat 30 in the deployed state, that is, on the left side of the passenger on the first seat 20 and at the same time on the right side of the passenger on the second seat 30, thereby providing side protection for the passengers on the first seat 20 and the second seat 30. When a collision occurs, especially a side collision, the airbag 11 of the airbag 10 of the present invention is positioned between the passengers on both the first seat 20 and the second seat 30, so that it can prevent the passengers on the first seat 20 and the second seat 30 from being injured by a side collision. In addition, in the stored state, after being wound or folded, the airbag 11 is stored in a predetermined position on the side of, for example, the second seat 30 (for example, in the seat frame of the second seat). Of course, after being wound or folded, the airbag 11 can also be stored in a predetermined position on the side of the first seat 20 (for example, in the seat frame of the first seat).

[0030] In the airbag 10 of the present invention, the airbag 11 has a first chamber 101 and a second chamber 102 that are in fluid communication with each other. For example, a plurality of communication holes are provided between the first chamber 101 and the second chamber 102 ( Figure 1 shown as 3 communication holes in

[0031] and are schematically shown by dashed circles), and the plurality of communication holes are arranged at intervals along the height direction of the second chamber 102. Figure 1 As Figure 1 shown, the height direction of the second chamber 102 is consistent with the height direction of the airbag 11, that is, the height direction of the vehicle ( Figure 1 the up and down direction inFigure 1 In the illustrated example, the height of the second chamber 102 is designed to be large enough to extend from the pelvic position of the passenger to the head position of the passenger; and, the height of the first chamber 101 is designed to be smaller, extending from the middle lower part of the seat back to a position a certain distance from the upper edge of the seat back. The first chamber 101 and the second chamber 102 have different deployment heights. The first chamber 101 with a smaller deployment height mainly serves as a support airbag for the airbag 11 in the deployed state, and the second chamber 102 with a larger deployment height mainly serves as a protection airbag for providing side protection. The first chamber 101 and the second chamber 102 will be described in more detail below.

[0032] Combined with Figure 2 As shown, the airbag 11 has a "T" shape in the deployed state. Specifically, the second chamber 102 is fixed to the front side panel of the first chamber 101. It should be noted that the "front side" and "rear side" here are defined based on the front-rear direction of the vehicle, that is, the front side panel of the first chamber is the panel of the first chamber located in the front side direction of the vehicle, and the rear side panel of the first chamber is the panel of the first chamber located in the rear side direction of the vehicle. Moreover, as Figure 1 and Figure 2 shown, in the deployed state, the first chamber 101 has a first deployment width, the second chamber 102 has a second deployment width, and the first deployment width is greater than the second deployment width. Advantageously, in the deployed state, the first end and the second end of the first chamber 101 in the width direction are respectively used to abut against the first seat 20 and the second seat 30, that is, as Figure 1 and Figure 2 clearly shown, the left end of the first chamber 101 abuts against the side of the first seat 20, and the right end of the first chamber 101 abuts against the side of the second seat 30. In this way, when both the left end and the right end of the first chamber 101 are supported, the first chamber 101 is stably positioned between the first seat 20 and the second seat 30 without shaking. In this way, the first chamber 101 supports the second chamber 102 in a manner similar to a "base". Therefore, only by means of the seats, the airbag of the airbag of the embodiment of the present invention can be stably supported, so the airbag has a more reasonable support method.

[0033] As a way to limit the deployment shape of the second chamber 102, it further includes an inner pull belt 103 provided inside the second chamber 102. For example, one inner pull belt 103 is provided, and the opposite ends of the inner pull belt 103 are respectively fixed to the left panel and the right panel of the second chamber 102 opposite to each other in the width direction. As Figure 3As shown, the inner pull belt 103 is fixed to the second chamber 102 via a suture portion, and the suture portion can be configured to be distributed along an arc-shaped path on the left and right panels of the second chamber 102. That is to say, the suture portion has a relatively large length, so the connection area between the inner pull belt 103 and the second chamber 102 is relatively large. In addition, the inner pull belt 103 generally has a rectangular shape, and the two long sides of the rectangular inner pull belt 103 are respectively connected to the left and right panels of the second chamber 102 via the suture portion, and the narrow side of the rectangular inner pull belt 103 is used to limit the unfolded shape of the second chamber 102, especially the unfolded thickness.

[0034] In addition, the airbag 10 further includes an outer pull belt 104 outside the second chamber 102. For example, one outer pull belt 104 is provided, and this one outer pull belt 104 is arranged between the second chamber 102 and the second seat 30. It can be understood that when the driver on the second seat 30 tilts towards the first seat 20, this outer pull belt 104 can apply a pulling force to the second chamber 102 to pull the second chamber 102 towards the second seat 30, so as to prevent the two occupants on adjacent seats from colliding. As an example, one end of the outer pull belt 104 is fixed to the front edge of the second chamber 102, and the other end of the outer pull belt 104 is fixed to the second seat 30. It can be understood that fixing one end of the outer pull belt 104 to the front edge of the second chamber 102 can limit the entire second chamber from tilting towards the first seat. Of course, this is only an example, and the outer pull belt between the first seat 20 and the second chamber 102 can also be provided as needed.

[0035] In addition, as an example of the present invention, the outer pull belt has a relatively wide end and a relatively narrow end opposite to each other, and the relatively wide end is fixed to the front edge of the second chamber. In this way, there is a relatively large connection area between the outer pull belt and the second chamber, thereby providing sufficient restraint force to the second chamber.

[0036] Figure 4 The schematic diagram showing the airbag and the airbag assembly according to another embodiment of the present invention is shown below. Refer to the following Figure 4 Describe the airbag and the airbag assembly according to another embodiment of the present invention. It should be noted that only the parts different from the above embodiments will be described below, and the same parts will not be described to avoid redundancy.

[0037] As Figure 4 shown, in the deployed state, the upper and lower ends of the second chamber 102 are respectively deflected by a predetermined angle with respect to the height direction of the airbag 11, that is, the height direction of the vehicle. Specifically, compared with the second chamber 102 shown in Figure 1 the second chamber 102 shown Figure 4The second chamber 102 shown rotates clockwise as a whole by a predetermined angle. In one example, the predetermined angle is set within the range of 0 - 45 degrees.

[0038] It can be understood that at Figure 4 the top of the second chamber shown is inclined towards the driver. This offset setting can provide better support for the driver's head, thereby reducing the risk of head injury to the driver. At the same time, the bottom of the second chamber is inclined towards the occupant to support the occupant's pelvis. Combining the inclination of the top of the second chamber towards the driver to support the driver's head, this combination can reduce the risk of side collisions between the occupant and the driver.

[0039] As mentioned above, although the exemplary embodiments of the present invention have been described with reference to the accompanying drawings in the description, the present invention is not limited to the above specific embodiments, and the protection scope of the present invention should be defined by the claims and their equivalent meanings.

Claims

1. An airbag (10) for providing protection to a passenger on the side, comprising: An airbag (11) having a deployed state and a stowed state. It is characterized in that: The airbag (11) has a first chamber (101) and a second chamber (102) that are in fluid communication with each other. The second chamber (102) is fixed to the front panel of the first chamber (101). In the deployed state, the first chamber (101) has a first deployed width, the second chamber (102) has a second deployed width, and the first deployed width is greater than the second deployed width.

2. The airbag (10) according to claim 1, wherein, In the deployed state, the first end and the second end of the first chamber (101) in the width direction are respectively adapted to abut against a first external member and a second external member.

3. The airbag (10) according to claim 2, wherein, It further includes an inner pull strap (103) disposed inside the second chamber (102) and an outer pull strap (104) disposed outside the second chamber (102).

4. The airbag (10) according to claim 3, wherein, One inner pull strap (103) is provided, and the opposite ends of the inner pull strap (103) are respectively fixed to the left panel and the right panel of the second chamber (102) that are opposite to each other in the width direction.

5. The airbag (10) according to claim 3, wherein, One outer pull strap (104) is provided. One end of the outer pull strap (104) is fixed to the front edge of the second chamber (102), and the other end of the outer pull strap (104) is fixed to the first external member or the second external member.

6. The airbag (10) according to claim 5, wherein, The outer pull strap (104) has a wider end and a narrower end that are opposite to each other, and the wider end is fixed to the front edge of the second chamber (102).

7. The airbag (10) according to claim 1, wherein, A plurality of communication holes are provided between the first chamber (101) and the second chamber (102), and the plurality of communication holes are arranged at intervals along the height direction of the second chamber (102).

8. The airbag (10) according to claim 1, wherein, In the deployed state, the first chamber (101) has a first deployed height, the second chamber (102) has a second deployed height, and the first deployed height is less than the second deployed height.

9. The airbag (10) according to claim 1, wherein, In the deployed state, the upper end and the lower end of the second chamber (102) are respectively deflected by a predetermined angle with respect to the height direction of the airbag (11).

10. The airbag (10) according to claim 9, wherein, The predetermined angle is set within the range of 0 - 45 degrees.

11. An airbag assembly (1), It is characterized in that: It includes the airbag (10) according to any one of claims 1 - 10, a first seat (20) and a second seat (30) that are adjacent to each other along the width direction of the vehicle. Wherein, in the deployed state, the airbag (11) is positioned between the first seat (20) and the second seat (30).

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