Safety airbag

Abstract

The present invention relates to a safety airbag. The safety airbag is arranged on the side of a seat and comprises an airbag and a gas generator used for inflating the airbag. The airbag has a deployed state and a storage state, and when in the deployed state, the airbag comprises a first chamber and a second chamber, which are connected to each other and are in fluid communication with each other, wherein the first chamber is defined by a first panel of the airbag, the second chamber is defined by a second panel of the airbag, the first chamber and the second chamber are positioned on an armrest portion between two seats, and the first chamber is connected to a top side edge of the second chamber to be located at the top of the second chamber.

Description

airbags Technical Field

[0001] The present invention relates to a safety device for a vehicle, and in particular to an airbag. Background Art

[0002] Automobiles are equipped with various safety devices. Airbags are a commonly used safety device. Existing automobile airbags include, for example, airbags located in the steering wheel, airbags located in the instrument panel, and, to more effectively utilize the limited space within the vehicle, overhead airbags located on the roof of the vehicle. When the vehicle collides or is impacted, the airbag's gas generator receives a signal transmitted via a wiring harness connected to the gas generator, causing it to explode. The gas generated by the explosion then rapidly inflates the folded airbag of the overhead airbag. The inflated airbag expands and then extends from the roof of the vehicle to a predetermined position in front of the occupant, protecting the occupant from injury caused by the impact.

[0003] The front center airbag is designed to extend between the two front seats when deployed. However, the manufacturing process of this airbag is complex and its protection function is limited.

[0004] Therefore, an airbag having simple design and manufacturing process and high safety is desired.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide an airbag. Since the airbag is provided in a manner of simple design and manufacturing process and strong protection function, the airbag of the present invention has the characteristics of simple design and manufacturing process and high safety.

[0007] The present invention provides an airbag, which is arranged on the side of a seat and includes an airbag and a gas generator for inflating the airbag.

[0008] The air bag has an expanded state and a stowed state.

[0009] in,

[0010] When in a deployed state, the air bag includes a first chamber and a second chamber connected to each other and in fluid communication, the first chamber being defined by a first panel of the air bag, the second chamber being defined by a second panel of the air bag, the first chamber and the second chamber being positioned on an armrest portion between two seats, and the first chamber being connected to a top side edge of the second chamber to be located on top of the second chamber.

[0011] According to an embodiment of the present invention, the second panel is constructed to have a shape symmetrical about a symmetry line, the first endpoint and the second endpoint of the top edge located at both ends are constructed symmetrically about the symmetry line, and the top edge of the second panel is longer than the bottom edge opposite thereto.

[0012] According to an embodiment of the present invention, the first panel includes a front connection point and a rear connection point opposite to each other, the front connection point is connected to both the first end point and the second end point of the second panel, and the rear connection point is connected to the top edge of the second panel at a midpoint on the symmetry line.

[0013] According to an embodiment of the present invention, a drawstring is further included on the inner side of the air bag.

[0014] According to an embodiment of the present invention, the drawstring is fixed to a middle portion of the first panel and a portion of the second panel close to the first panel.

[0015] According to an embodiment of the present invention, only one drawstring is provided, and both ends of the drawstring are respectively fixed to different parts of the second panel close to the first panel, and the middle section of the drawstring is fixed to the middle part of the first panel.

[0016] According to an embodiment of the present invention, the airbag includes a first connector and a second connector, the first connector being used to connect the first panel to the top side edge of the second panel, and the second connector being used to connect the left side edge and the right side edge of the second panel located on both sides of the symmetry line, and the left side portion and the right side portion of the bottom side edge that are symmetrical about the symmetry line.

[0017] According to an embodiment of the present invention, the first connecting member and / or the second connecting member is configured as a suture.

[0018] According to an embodiment of the present invention, the chamber of the air bag is defined only by the first panel and the second panel.

[0019] According to an embodiment of the invention, the first chamber is positioned at the head of an occupant of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features, advantages and technical effects of the exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the accompanying drawings, the same symbols indicate the same elements, wherein:

[0021] FIG. 1 shows an airbag according to an embodiment of the present invention.

[0022] 2 , 3 , 4 ( a ) and 4 ( b ) illustrate a method for manufacturing an airbag according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following describes specific embodiments of the airbag according to the present invention in conjunction with the accompanying drawings. The following detailed description and accompanying drawings are intended to illustrate the principles of the present invention. The present invention is not limited to the preferred embodiments described herein. The various embodiments described herein may be used individually or in any combination. The scope of protection of the present invention is defined by the claims.

[0024] In addition, spatially relative terms (such as "upper," "lower," "left," and "right") are used to describe the relative positional relationship of an element shown in the drawings to another element. Therefore, the spatially relative terms can be applied to orientations different from those shown in the drawings when used. Obviously, although all of these spatially relative terms refer to the orientations shown in the drawings for ease of description, those skilled in the art will understand that orientations different from those shown in the drawings can be used.

[0025] Fig. 1 shows an airbag according to an embodiment of the present invention. The airbag according to an embodiment of the present invention will be described below with reference to Fig. 1 .

[0026] As shown in FIG1 , the present invention provides an airbag 1. The airbag 1 is arranged on the side of the seat. In this embodiment, the seat is shown as including a seat 3 on the left side of the figure and a seat 2 on the right side of the figure. It should be noted that the airbag 1 shown in FIG1 is in the orientation when viewed from the front toward the rear of the vehicle, and the two seats are constructed as front seats, and the seat 2 on the right is constructed as a driver's seat. Moreover, the airbag 1 is arranged on the side of each of the seats 2 and 3, for example, installed at a predetermined position on the seat frame. For a passenger on the seat 3 on the left side of FIG1 , the installation position of the airbag 1 is on the left side thereof, and for a passenger on the seat 2 on the right side of FIG1 , the installation position of the airbag 1 is on the right side thereof.

[0027] The airbag 1 includes an airbag 10 and a gas generator (not shown) for inflating the airbag 10. The airbag 10 has a deployed state and a stowed state. In the stowed state, the airbag 10 is stowed at a predetermined location, such as on a seat frame. When deployed from the stowed state by the gas generator, the airbag 10 extends laterally of the seats 2 and 3, specifically in both the vertical and fore-aft directions, and is positioned on the armrest between the seats. As clearly shown in FIG. 1 , in the deployed state, the airbag 10 exhibits an overall mushroom-like shape, with the upper portion of the airbag 10 expanding relative to the lower portion, resulting in a larger upper end. As can be appreciated, this mushroom-like design ensures a relatively close fit between the occupant's head and neck during deployment, enabling timely and reliable protection in situations such as a side collision.

[0028] Continuing with Figure 1 , when deployed, the airbag 10 includes a first chamber 11 and a second chamber 12 that are connected and in fluid communication with each other. The first chamber 11 is connected to the top edge of the second chamber 12 so as to be located on top of the second chamber 12. Furthermore, to maintain the deployed shape of the airbag 10, a drawstring, for example, a single drawstring, may be provided inside the airbag 10. The following describes a method for manufacturing the airbag in detail.

[0029] Figures 2, 3, 4(a) and 4(b) illustrate a method for manufacturing an airbag according to an embodiment of the present invention. The following describes a method for manufacturing an airbag according to an embodiment of the present invention with reference to Figures 2, 3, 4(a) and 4(b).

[0030] First, as shown in FIG2 , a first panel 100, a second panel 200, and a third panel 300 are provided. The first chamber 11 will be defined by the first panel 100, the second chamber 12 will be defined by the second panel 200, and the third panel 300 is used to form the aforementioned single drawstring. As an example of the present invention, the airbag 10 includes only the first panel 100 and the second panel 200, that is, no drawstring may be provided on the inner side of the airbag 10. As an example of the present invention, the chamber of the airbag 10 is defined only by the first panel 100 and the second panel 200. In other words, in the airbag 1 of the present invention, the airbag 10 is a two-piece design (i.e., the first panel 100 and the second panel 200). It can be understood that the design process of a two-piece airbag is simple and low-cost. The following describes each panel in detail.

[0031] As shown in Figure 2, the second panel 200 is constructed to have a generally butterfly shape, symmetrical about a line of symmetry S. The second panel 200 includes a top edge 201, a bottom edge 202, a left edge 203, and a right edge 204. The top edge 201 and the bottom edge 202 are opposed in the vertical direction, while the left edge 203 and the right edge 204 are opposed in the left-right direction. Furthermore, considering the aforementioned mushroom-shaped design of the airbag 10 after deployment, the top edge 201 of the second panel 200 is longer than the bottom edge 202. The first and second endpoints of the top edge 201, located on both left and right sides, are symmetrical about the line of symmetry S. Specifically, the first and second endpoints on the left and right sides are symmetrical about the line of symmetry S. Advantageously, these first and second endpoints are configured as convex feature points, formed by convexly forming sharp corners at the intersections of the top edge 201 with the left and right edges 203 and 204, respectively. It can be understood that the setting of the convex feature point of the top side edge 201 can help to quickly and easily determine the connection position of the first panel 100 and the second panel 200 relative to each other when the second panel 200 is connected to the first panel 100, so as to improve the manufacturing speed of the airbag and reduce the manufacturing cost.

[0032] As shown in FIG2 , the first panel 100 includes a front connection point 102 and a rear connection point 101 that are opposite to each other. Advantageously, the front connection point 102 and the rear connection point 101 serve as convex feature points of the first panel 100. The feature points are formed in the following manner: the intersection of the left edge and the right edge of the first panel 100 convexly forms a sharp corner. It can be understood that the provision of the convex feature points at the edge of the first panel 100 can help to quickly and easily determine the connection position of the first panel 100 and the second panel 200 relative to each other when the second panel 200 is connected to the first panel 100, thereby increasing the manufacturing speed of the airbag and reducing the manufacturing cost.

[0033] Next, as shown in FIG. 3 and FIG. 4( a ) and FIG. 4 ( b ), the first panel 100 , the second panel 200 , and the third panel 300 are connected to form the air bag 10 .

[0034] Specifically, first, the middle portion of the third panel 300 is connected to the inner surface of the first panel 100, and the two ends of the third panel 300 are respectively connected to the inner surface of the left half and the right half of the second panel 200 to form an inner drawstring. Then, the left edge 203 and the right edge 204 of the second panel 200 are overlapped and aligned and connected to each other, and the two parts of the bottom edge 202 symmetrical about the symmetry line S are overlapped and aligned and connected to each other. Finally, the front side connection point 102 of the first panel 100 is connected to the above-mentioned first end point and the second end point of the second panel 200, and the back side connection point 101 of the first panel 100 is connected to the top side edge 201 of the second panel 200 at the middle point on the symmetry line S. Afterwards, the left edge and the right edge of the first panel 100 are respectively connected to the two parts of the top side edge 201 of the second panel 200 on both sides of the symmetry line S. This has formed an air bag 10 with a closed space. Of course, the above steps are merely examples, and the order of the above steps may be changed according to actual conditions, or other steps may be added.

[0035] Furthermore, by adjusting the positions of the front and rear connection points of the top edge of the second panel 200 relative to the midpoint thereof, the pitch angle of the first panel 100 when connected to the second panel 200 can be adjusted. It will be appreciated that pitch angles of varying magnitudes are advantageous for adapting to different situations and requirements. Of course, this is merely an example. For example, the front connection point 102 of the first panel 100 may be connected to the midpoint of the top edge 201 of the second panel 200 on the symmetry line S, and the rear connection point 101 of the first panel 100 may be connected to both the first and second endpoints of the second panel 200.

[0036] As an embodiment of the present invention, as shown in Figure 3 and Figures 4(a) and 4(b), a third panel 300 for forming only one drawstring is fixed to the middle part of the first panel 100 and the part of the second panel 200 close to the first panel 100, and its two ends are respectively fixed to different parts of the second panel 200 close to the first panel 100, for example, fixed to the left and right parts of the second panel 200 symmetrical about the symmetry line S, and the middle section is fixed to the middle part of the first panel 100.

[0037] As shown in Figures 4(a) and 4(b), the airbag 10 includes a first connector 111 and a second connector 112. The first connector 111 is used to connect the edge of the first panel 100 to the top edge 201 of the second panel 200, and the second connector 112 is used to connect the left edge 203 and the right edge 204 of the second panel 200 located on both sides of the symmetry line S, and the left portion and the right portion of the bottom edge 202 that are symmetrical about the symmetry line S. In addition, the airbag 10 also includes a third connector 113. The third connector 113 is used to connect the third panel 300 to the first panel 100 and the second panel 200. As an example of the present invention, the first connector 111, the second connector 112, and the third connector 113 are configured as stitches.

[0038] As mentioned above, although the exemplary embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above specific embodiments, and the scope of protection of the present invention should be defined by the claims and their equivalents.

Claims

1. A safety airbag (1), arranged at the side of a seat, comprising an airbag (10) and a gas generator for inflating the airbag (10), The air bag (10) has an unfolded state and a stowed state. It is characterized in that When in the deployed state, the air bag (10) comprises a first chamber (11) and a second chamber (12) which are connected to each other and fluidically communicated, the first chamber (11) being defined by a first panel (100) of the air bag (10), the second chamber (12) being defined by a second panel (200) of the air bag (10), the first chamber (11) and the second chamber (12) being positioned on an armrest portion between two seats, and the first chamber (11) being connected to a top side edge (201) of the second chamber (12) so as to be located on top of the second chamber (12).

2. The airbag (1) according to claim 1, wherein: The second panel (200) is constructed to have a shape symmetrical about a symmetry line (S), the first end point and the second end point of the top side edge (201) located at both ends are constructed to be symmetrical about the symmetry line (S), and the top side edge (201) of the second panel (200) is longer than the bottom side edge (202) opposite thereto.

3. The airbag (1) according to claim 2, wherein: The first panel (100) includes a front connection point (102) and a rear connection point (101) opposite to each other, the front connection point (102) being connected to both the first end point and the second end point of the second panel (200), and the rear connection point (101) being connected to the top edge (201) of the second panel (200) at a midpoint on the symmetry line (S).

4. The airbag (1) according to claim 3, wherein: It also includes a drawstring located on the inner side of the air bag (10).

5. The airbag (1) according to claim 4, wherein: The drawstring is fixed to a middle portion of the first panel (100) and a portion of the second panel (200) close to the first panel (100).

6. The airbag (1) according to claim 5, wherein: Only one drawstring is provided, and both ends of the drawstring are respectively fixed to different parts of the second panel (200) close to the first panel (100), and the middle section of the drawstring is fixed to the middle part of the first panel (100).

7. The airbag (1) according to claim 2, wherein: The air bag (10) comprises a first connecting member (111) and a second connecting member (112), wherein the first connecting member (111) is used to connect the first panel (100) to the top edge (201) of the second panel (200), and the second connecting member (112) is used to connect the left edge (203) and the right edge (204) of the second panel (200) located on both sides of the symmetry line (S), and the left part and the right part of the bottom edge (202) symmetrical with respect to the symmetry line (S).

8. The airbag (1) according to claim 7, wherein: The first connecting member (111) and / or the second connecting member (112) are configured as sutures.

9. The airbag (1) according to claim 1, wherein: The chamber of the air bag (10) is defined only by the first panel (100) and the second panel (200).

10. The airbag (1) according to claim 1, wherein: The first chamber (11) is positioned at the head of an occupant of the seat.

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