CN220483242U

CN220483242U - Safety air bag

Info

Publication number: CN220483242U
Application number: CN202321956961.0U
Authority: CN
Inventors: 张鹏程; 李斯乾; 张茜; 马永林; 陈佳宝; 周曙华
Original assignee: Autoliv Development AB
Current assignee: Autoliv Development AB
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2024-02-13
Anticipated expiration: 2033-07-24

Abstract

The utility model provides an airbag. The airbag is arranged above the sides of the seat and comprises an airbag and a gas generator for inflating the airbag, wherein the airbag has a deployed state and a stowed state, wherein the airbag comprises a first chamber, a second chamber and a third chamber in fluid communication with each other, connected in sequence, thereby forming an N-shaped configuration, the first chamber extending from the roof down to the seat, and wherein the second chamber and the third chamber are positioned on both sides of an armrest portion between two of the seats, respectively.

Description

Safety air bag

Technical Field

The present utility model relates to a vehicle safety device, and in particular to an airbag.

Background

Various safety devices are installed in automobiles. Airbags are one type of safety device that is commonly employed. Existing automotive airbags include, for example, airbags disposed in the steering wheel, airbags disposed in the instrument panel, and overhead airbags disposed at the roof of the vehicle in order to more reasonably utilize the limited space within the vehicle. When the vehicle collides or is impacted, the gas generator of the airbag receives a signal transmitted via a wire harness connected to the gas generator, and thus the explosion occurs. Then, the gas generated by the explosion rapidly inflates the folded air bag of the overhead air bag, and the inflated air bag expands and then extends to a preset position in front of the passenger from the top of the vehicle, so that the passenger is prevented from being hurt by impact.

The front center airbag is configured to extend between the front two seats in the deployed state. However, the manufacturing process of such an airbag is complicated and the protection function is limited.

Therefore, an airbag having a simple manufacturing process and high safety is desired.

Disclosure of Invention

The utility model aims to provide an air bag, which is provided in a mode of simple manufacturing process and strong protection function, so that the air bag has the characteristics of simple manufacturing process and high safety.

The present utility model provides an airbag which is arranged above a side of the seat and includes an airbag and a gas generator for inflating the airbag,

wherein,

the air bag has an expanded state and a stowed state,

when in the deployed state, the airbag includes a first chamber, a second chamber, and a third chamber in fluid communication with each other, connected in sequence, thereby forming an N-shaped configuration, the first chamber extending downwardly from the roof to the seats, and the second chamber and the third chamber being positioned on either side of an armrest portion between two of the seats, respectively.

According to an embodiment of the utility model, the first chamber and the second chamber are provided with a first pull tape on the outer side connecting the two.

According to an embodiment of the utility model, a second draw tape connecting the second chamber and the third chamber is arranged on the outer side surface between the second chamber and the third chamber.

According to an embodiment of the utility model, the airbag is formed from a piece of fabric, the fabric comprising a first section, a second section and a third section, and the first section is for defining the first chamber, and the second section and the third section are for jointly defining the second chamber and the third chamber.

According to an embodiment of the utility model, both the second section and the third section are positioned at the same side edge of the first section and are spaced apart from each other by a predetermined distance.

According to an embodiment of the utility model, the airbag is arranged above the side of the seat located in the front row.

According to an embodiment of the utility model, the airbags are arranged above one side of the seats each close to the armrest portion.

According to an embodiment of the present utility model, two first pull straps are provided and arranged one above the other, and/or two second pull straps are provided and arranged one above the other.

According to an embodiment of the utility model, the gas generator is arranged at an intermediate portion of the first section.

According to an embodiment of the utility model, the second and third sections are used to form upper and lower sides of the second and third chambers, respectively, the first pull strap is disposed on the second section, and the second pull strap is disposed on both the first and third sections.

According to an embodiment of the utility model, the edges of the fabric are connected together via stitching to define the first, second and third chambers.

According to an embodiment of the utility model, the first chamber is positioned closer to the seat in which the driver is located.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings. In the drawings, like numbering represents like elements, in which:

fig. 1 schematically shows an airbag according to an embodiment of the utility model.

Fig. 2 schematically illustrates a method of manufacturing an airbag according to an embodiment of the utility model.

Detailed Description

Hereinafter, specific embodiments of an airbag according to the present utility model will be described with reference to the accompanying drawings. The following detailed description and the accompanying drawings are provided to illustrate the principles of the utility model and are not limited to the preferred embodiments described, but may be used alone or in any combination, the scope of which is defined by the claims.

Furthermore, spatially relative terms (such as "upper," "lower," "left," and "right," etc.) are used to describe relative positions of an element illustrated in the figures with respect to another element. Thus, spatially relative terms may be applied to directions other than those illustrated in the drawings when used. It will be apparent that, although all of these spatially related terms refer to the directions shown in the drawings for ease of description, those skilled in the art will appreciate that directions other than those shown in the drawings may be used.

Fig. 1 schematically shows an airbag according to an embodiment of the utility model. An airbag according to an embodiment of the present utility model is described below with reference to fig. 1.

As shown in fig. 1, the present utility model provides an airbag 1. The airbag 1 is arranged above the side of the seat 30, in this embodiment the seat 30 is shown to comprise a left-hand seat and a right-hand seat. The airbag 1 shown in fig. 1 is oriented when viewed from the front to the rear of the vehicle, and the two seats 30 are configured as front seats. Further, an armrest portion 40 is provided between the two seats 30, and the right-side seat 30 is configured as a driver seat. And the airbag is disposed above the side of the seat 30, for example, at a predetermined position on the roof of the vehicle, and the mounting position of the airbag is located above the left side thereof, that is, above the side of the left side seat 30 that is close to the armrest portion 40, for the passenger on the right side seat 30 in fig. 1, above the right side thereof, that is, above the side of the right side seat 30 that is close to the armrest portion 40, for the passenger on the left side seat 30 in fig. 1. And, the airbag further includes an airbag 10 and a gas generator (not shown) for inflating the airbag 10. The air bag 10 has an expanded state and a stored state, in which the air bag 10 is stored at a predetermined position such as a roof of a vehicle; when the gas generator is operated from the stored state to the deployed state, the airbag 10 extends from the roof to the side of the seat 30. Specifically, when in the deployed state, the air bag 10 will extend to the side of each seat 30 adjacent the armrest portion 40. As shown in fig. 1, the air bag 10 includes a first chamber 11, a second chamber 12 and a third chamber 13 which are sequentially connected, thereby forming an N-shaped configuration, a bent configuration is provided at a connection position of the first chamber 11 and the second chamber 12, and likewise, a bent configuration is provided at a connection position of the second chamber 12 and the third chamber 13, the two bent configurations being such that the air bag 10 has an N-shaped configuration. That is, one end of the second chamber 12 is connected to the end of the first chamber 11, and the other end of the second chamber 12 is connected to the end of the third chamber 13. Moreover, the first chamber 11, the second chamber 12 and the third chamber 13 are in fluid communication with each other, with a passage provided between each chamber for fluid to flow between adjacent chambers. Therefore, only one gas generator may be provided for performing the inflating operation of the first chamber 11, the second chamber 12, and the third chamber 13 to switch the respective chambers from the storage state to the deployed state, thereby protecting the passengers. The air bag 10 is shown in the deployed state in fig. 1. The air bag 10 is described in more detail below with reference to fig. 1.

As shown in fig. 1, when the airbag 10 is in the deployed state, the first chamber 11 extends downward from the roof to the seat 30, specifically, from above the side of the seat 30 to the side of the seat 30, and the second chamber 12 and the third chamber 13 are positioned on both sides of the armrest portion 40 between the two seats 30, respectively, that is, the second chamber 12 is positioned on the left side of the armrest portion 40 and the third chamber 13 is positioned on the right side of the armrest portion 40. As one embodiment of the present utility model, the right side seat is configured as a driver seat, and accordingly, the first chamber 11 is positioned closer to the seat where the driver is located to provide protection to the driver.

Thus, in the airbag of the present utility model, when the airbag thereof is in the deployed state, both the second chamber and the third chamber are positioned on the armrest portion, and can be used together to support the airbag so that the airbag has sufficient stability. Meanwhile, since the third chamber is located at the side of the armrest portion near the left side seat, the third chamber can also provide protection for the passenger on the left side seat. The airbag of the present utility model has the feature of providing protection for the passengers on both seats in combination with the first chamber and the second chamber, and therefore has higher safety.

As an embodiment of the present utility model, in order to restrain the deployment shape of the airbag, as shown in fig. 1, there are provided a first draw tape 14 and a second draw tape 15, two first draw tapes 14 being provided on the outer side surfaces of the first chamber 11 and the second chamber 12, and two second draw tapes 15 being provided on the outer side surfaces between the second chamber 12 and the third chamber 13. Also, the two first pull straps 14 are arranged one above the other, and likewise, the two second pull straps 15 are arranged one above the other. It should be noted that, the above-mentioned pull straps are arranged one above the other to firmly define the included angle between the two adjacent chambers, but the airbag of the present utility model is not limited thereto, and for example, a greater or lesser number of pull straps may be used, or a plurality of pull straps may be arranged one behind the other. With continued reference to fig. 1, it can be seen that the length of the upper first pull strap 14 is greater than the length of the lower first pull strap 14 such that the air bag 10 extends downwardly and then upwardly at the location of the first pull strap 15, and the length of the upper second pull strap 15 is less than the length of the lower second pull strap 15 such that the air bag 10 extends downwardly and then upwardly one end distance at the location of the first pull strap 15 and then downwardly at the location of the second pull strap 15, thereby restraining the air bag 10 to have an N-shaped configuration.

Fig. 2 schematically illustrates a method of manufacturing an airbag according to an embodiment of the utility model. A method of manufacturing an airbag according to an embodiment of the present utility model is described below with reference to fig. 2.

As shown in fig. 2, a piece of fabric 100 is provided, and the above-described air bag 10 is formed from the piece of fabric 100. Specifically, the fabric includes a first section 101, a second section 102, and a third section 103, both the second section 102 and the third section 103 being positioned at the same side edge of the first section 101 (i.e., at the right side edge of the first section in fig. 2) and being spaced apart from each other by a predetermined distance. The first section 101 is used to define the first chamber 11, and the second section 102 and the third section 103 are used to define the second chamber 12 and the third chamber 13 together. Moreover, the second and third sections 102 and 103 are used to form the upper and lower sides of the second and third chambers 12 and 13, respectively. Furthermore, first fixing locations 104 are provided on the first section 101 and the second section 102, the first fixing locations 104 being used for fixing the first draw tape 14, specifically, two first fixing locations 104 are provided on the second section 102, two first fixing locations 104 are provided on the first section 101, four first fixing locations 104 are provided side by side on the fabric 100, two first fixing locations 104 in the middle being used for fixing the first draw tape 14 located on the lower side, and two first fixing locations 104 on the outer side being used for fixing the first draw tape 14 located on the upper side. Likewise, a second fastening point 105 is provided on the third section 103, which second fastening point 105 serves to fasten the second pull strap 15, in particular four second fastening points 105 are provided on the third section 103 and arranged next to one another, two first fastening points 104 in the middle serving to fasten the second pull strap 15 located on the lower side, and two second fastening points 105 on the outer side serving to fasten the second pull strap 15 located on the upper side.

Thereafter, the fabric 100 is folded along the folding line F, and it can be understood that the fabric 100 actually has a symmetrical shape about the folding line F, and the edges of the two portions into which the fabric 100 is divided after being folded along the folding line F are aligned. At this time, stitches are placed on the folded fabric 100 along the aligned edges of the two portions to form the air bag 10 while defining the first chamber 11, the second chamber 12 and the third chamber 13.

Next, the fabric 100 is folded on both sides at folding locations 107, respectively, to form an N-shaped configuration.

Finally, a drawstring is attached to the outside of the fabric 100. The respective ends of the two first draw tapes 14 are fixed to the first fixing locations 104, respectively, specifically, the two ends of the first draw tape 14 having a shorter length are fixed to the middle two first fixing locations 104, respectively, and the two ends of the first draw tape 14 having a longer length are fixed to the two first fixing locations 104 on both sides, respectively. And, both ends of each of the two second draw tapes 15 are fixed to the second fixing positions 105, respectively, specifically, both ends of the second draw tape 15 having a shorter length are fixed to the middle two second fixing positions 105, respectively, and both ends of the second draw tape 15 having a longer length are fixed to the two second fixing positions 105 on both sides, respectively.

As an embodiment of the utility model, a gas generator is provided on the first section 101 of the fabric 100 for inflating the airbag 10. For this purpose, the first section 101 of the fabric 100 is provided with a communication opening 106 for connecting a gas generator, in particular, this communication opening 106 for a gas generator is arranged symmetrically with respect to the folding line F and is located at an intermediate portion of the first section 101, which intermediate portion is located at an intermediate position of the first section 101 in the direction along the folding line F. Of course, the arrangement position of the communication port is not limited to the above-described embodiment, and it may be arranged at a position other than the above-described position.

Therefore, in the airbag of the present utility model, the number of fabrics used for manufacturing the airbag is set to be only one, and the airbag is formed via the connection portion (e.g., seam, adhesive portion) provided at the edge of the fabrics, so that the airbag can be formed with a simple manufacturing process.

As described above, although the exemplary embodiments of the present utility model have been described in the specification with reference to the accompanying drawings, the present utility model is not limited to the above-described specific embodiments, and the scope of the present utility model should be defined by the claims and their equivalents.

Claims

1. An airbag (1) which is arranged laterally above a seat (30) and comprises an airbag (10) and a gas generator for inflating the airbag (10),

it is characterized in that the method comprises the steps of,

the air bag (10) has an expanded state and a stowed state,

when in the deployed state, the airbag (10) comprises a first chamber (11), a second chamber (12) and a third chamber (13) in fluid communication with each other, connected in sequence, thereby forming an N-shaped configuration, the first chamber (11) extending from the roof down to the seats (30), and the second chamber (12) and the third chamber (13) being positioned on either side of an armrest portion (40) between two of the seats (30), respectively.

2. Airbag (1) according to claim 1, wherein the first chamber (11) and the second chamber (12) are provided on the outer side with a first pull strap (14) connecting the two.

3. An airbag (1) according to claim 2, wherein a second drawstring (15) connecting the second chamber (12) and the third chamber (13) is provided on the outer side.

4. An airbag (1) according to claim 3, wherein the airbag (10) is formed from a sheet of fabric (100), the fabric (100) comprising a first section (101), a second section (102) and a third section (103), and the first section (101) being intended to delimit the first chamber (11), and the second section (102) and the third section (103) being intended to jointly delimit the second chamber (12) and the third chamber (13).

5. The airbag (1) of claim 4, wherein both the second section (102) and the third section (103) are positioned at the same side edge of the first section (101) and are spaced apart from each other by a predetermined distance.

6. The airbag (1) according to claim 4, wherein the airbag is arranged above a side of the seat (30) located in a front row.

7. The airbag (1) according to claim 6, wherein the airbag is arranged above a side of the seats (30) each close to the armrest portion (40).

8. Airbag (1) according to claim 4, wherein two first pull straps (14) are provided and two first pull straps (14) are arranged one above the other and/or two second pull straps (15) are provided and two second pull straps (15) are arranged one above the other.

9. The airbag (1) according to claim 5, wherein the gas generator is provided at an intermediate portion of the first section (101).

10. The airbag (1) of claim 8, wherein the second and third sections (102, 103) are used to form upper and lower sides of the second and third chambers (12, 13), respectively, the first pull strap (14) is disposed on the second section (102), and the second pull strap (15) is disposed on both the first and third sections (101, 103).

11. The airbag (1) of claim 4 wherein edges of the fabric (100) are joined together via stitches to define the first chamber (11), the second chamber (12) and the third chamber (13).

12. The airbag (1) of claim 11 wherein the first chamber (11) is positioned closer to a seat (30) in which the driver is located.