CN109466497B - Air bag with double-cavity structure for automobile safety air bag - Google Patents
Air bag with double-cavity structure for automobile safety air bag Download PDFInfo
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- CN109466497B CN109466497B CN201811455523.XA CN201811455523A CN109466497B CN 109466497 B CN109466497 B CN 109466497B CN 201811455523 A CN201811455523 A CN 201811455523A CN 109466497 B CN109466497 B CN 109466497B
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- air bag
- cavity
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- automobile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
An air bag with a double-cavity structure of an automobile safety air bag comprises an air bag body with a double-cavity structure, wherein the air bag body consists of an air bag supporting cavity and an air bag protecting cavity; two air guide weakening areas are arranged on the air bag supporting cavity and adjacent to the air bag protecting cavity, two air guide holes are arranged in the air bag protecting cavity corresponding to the air guide weakening areas, the peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity, and the air bag supporting cavity and the air bag protecting cavity are connected into a complete air bag; the surface of the air bag supporting cavity is provided with a gas generator mounting hole for mounting a gas generator and fixing an air bag; the air bag protection cavity is provided with an exhaust hole for controlling the internal pressure of the air bag. The invention can realize the functional requirement of the sequential expansion of the air bag, thereby realizing the effective protection of the head, the neck and the chest of the passenger; the air bag protection cavity is beneficial to generating an energy absorption effect on the head and the neck of the passenger when the air bag protection cavity is contacted with the head of the passenger, and the head and neck injuries of the passenger are reduced.
Description
Technical Field
The invention relates to an air bag structure of an automobile safety air bag, in particular to an air bag with a double-cavity structure of the automobile safety air bag, which is arranged at the front cross beam of a passenger side on an automobile ceiling.
Background
With the development of the automobile industry, more and more automobile front instrument panels adopt larger display screens, and in order to meet the protection requirements of automobile frontal collision on front row passengers, more and more safety air bags for automobile frontal collision protection adopt ceiling mounting schemes.
At present, the air bags of the safety air bags on the automobile roofs comprise curtain-shaped air bags, L-shaped air bags, chair-shaped air bags and the like, the air bag structures are all single-cavity structures, the air bags are not supported, the phenomenon of movement in the unfolding process is caused, the air bags cannot be accurately unfolded between passengers and automobile instrument panels, and the protection is incomplete. In the research and development process of an automobile roof airbag, aiming at the requirements of frontal collision protection indexes of the airbag, the installation requirements of the roof airbag and the unfolding requirements of the airbag, the airbag with better protection effect on front row passengers needs to be researched and developed.
Disclosure of Invention
The invention aims to provide an automobile safety airbag double-cavity structure airbag which provides good front protection for front passengers.
The technical scheme of the invention is as follows:
the utility model provides an automobile safety gasbag two-chamber structure air pocket, includes the air pocket body, its characterized in that: the air bag body is of a double-cavity structure and consists of an air bag supporting cavity and an air bag protecting cavity; two air guide weakening areas are arranged on the air bag supporting cavity and adjacent to the air bag protecting cavity, two air guide holes are arranged in the air bag protecting cavity corresponding to the air guide weakening areas, the peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity, and the air bag supporting cavity and the air bag protecting cavity are connected into a complete air bag; the surface of the air bag supporting cavity is provided with a gas generator mounting hole for mounting a gas generator and fixing an air bag; the air bag protection cavity is provided with an exhaust hole for controlling the internal pressure of the air bag.
Further, the air bag body is arranged at a passenger side front cross beam of an automobile ceiling, and the air bag support cavity is unfolded along the automobile front windshield and is supported between the automobile front windshield and an instrument panel; the air bag protection cavity is filled between the passenger and the automobile instrument panel after being unfolded.
Furthermore, the peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity in a sewing or bonding mode.
The air bag of the safety air bag is arranged at the front cross beam of the side of a passenger on the automobile ceiling, and the gas generator of the safety air bag adopts a cake-shaped generator, so that the safety air bag has the beneficial effects that:
1. the air bag supporting cavity is provided with an air guide weakening area, and when the automobile is collided in a frontal collision and the gas generator is detonated, the gas generated by the gas generator firstly fills the air bag supporting cavity, so that the air bag supporting cavity can be unfolded along the front windshield of the automobile and supported between the front windshield of the automobile and the instrument panel of the automobile. Along with the increase of the gas pressure in the air bag supporting cavity, the gas breaks through the gas guide weakening area of the air bag supporting cavity, so that the gas enters the air bag protecting cavity through the gas guide hole of the air bag protecting cavity, the air bag protecting cavity is unfolded and filled between a passenger and an automobile instrument panel, the functional requirement of sequential unfolding of the air bag is met, and the head, the neck and the chest of the passenger are effectively protected.
2. The peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity, so that the unfolding stability of the air bag protecting cavity is facilitated. The air bag supporting cavity is not connected with other parts of the air bag protecting cavity, so that the energy absorption effect on the head and the neck of a passenger is favorably realized when the air bag protecting cavity is contacted with the head of the passenger, and the head and neck injuries of the passenger are reduced.
Drawings
FIG. 1 is a schematic illustration of the present invention deployed at a front passenger side mount;
FIG. 2 is a schematic view showing the deployed state of the air bag body of the present invention;
FIG. 3 is a schematic view of the airbag support cavity pocket panel deployment structure of the present invention;
FIG. 4 is a schematic view of the airbag protection pocket panel deployment structure of the present invention;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a right side view of FIG. 4;
FIG. 7 is a schematic view of the airbag support chamber sewing process of the present invention;
FIG. 8 is a schematic view of the air bag protection chamber sewing process of the present invention;
FIG. 9 is a schematic view of the present invention showing the sewing process of the airbag support chamber and the airbag protection chamber.
In the figure: 1. the air bag comprises an air bag body, 2 passengers, 3 automobile instrument boards, 4 automobile front windscreens, 5 automobile front cross beams, 6 gas generators, 101 air bag supporting cavities, 102 air bag protection cavities, 101A air guide weakening areas, 101a bag pieces, 101b air guide weakening lines, 101c generator mounting holes, 102a surrounding pieces, 102b side pieces, 102c air guide holes, 102d exhaust holes, L-fold lines, M-sewing line stitches and N-sewing line stitches.
Detailed Description
As shown in fig. 2, the airbag with the dual-chamber structure of the airbag according to the present invention includes an airbag body 1 with a dual-chamber structure. The airbag body 1 is composed of an airbag support chamber 101 and an airbag protection chamber 102.
As shown in fig. 3 and 7, the bag support chamber 101 is formed by sewing a bag piece 101a. Firstly, the bag sheet 101a is folded in half at a folding line L, and then the periphery of the bag sheet 101a is sewed along a sewing thread stitch M to form an air bag supporting cavity. The air bag support cavity 101 is provided with two air guide weakened lines 101b on the bag sheet 101A to form two air guide weakened areas 101A. The airbag-supporting chamber 101 is further provided with a generator mounting hole 101c in the bag piece 101a.
As shown in fig. 4, 5, 6 and 8, the airbag protection chamber 102 is sewn by a surrounding panel 102a and 2 side panels 102b. The two side edges a of the surrounding panel 102a are first sewn together, and then the peripheries of the two side panels 102B are sewn together with the side edges B of the surrounding panel 102a, respectively, to form the air bag protection chamber 102. Two air vents 102c are arranged on the surrounding sheet 102a, and the air vents 102c are consistent with the shape of the air guide weakening area 101A and correspond to the air guide weakening area in position. The airbag protection chamber 102 is provided with vent holes 102d on 2 side panels 102b.
As shown in fig. 2, 7 and 8, the airbag-supporting chamber 101 and the airbag-protecting chamber 102 are sewn together. The stitching is the perimeter of the air guide weakened area 101A formed by the two air guide weakened lines 101b of the air bag support cavity 101 and the perimeter of the two air guide holes 102c of the air bag protection cavity 102, see fig. 7, 8, the sewing line trace N. The airbag support chamber 101 and the airbag protection chamber 102 are sewn into a complete airbag.
As shown in fig. 9, the stitching between the airbag support chamber 101 and the airbag protection chamber 102 may be done before the airbag support chamber 101 and the airbag protection chamber 102 are stitched. The sewing mode is as follows: firstly, the bag piece 101a and the surrounding piece 102a are sewed along the sewing thread line N, and then the air bag supporting cavity 101 and the air bag protecting cavity 102 are respectively sewed according to the sewing method of the air bag supporting cavity 101 and the air bag protecting cavity 102, so as to form the complete air bag.
As shown in fig. 1, 7 and 8, the airbag of the dual chamber structure of the airbag for a vehicle is mounted to the occupant-side front cross member 5 of the roof of the vehicle. Since the airbag-supporting chamber 101 is provided with the gas-guiding weakened line 101b, after the gas generator 6 is ignited, the gas generated by the gas generator 6 first fills the airbag-supporting chamber 101, so that the airbag-supporting chamber 101 is deployed along the front windshield 4 of the automobile and supported between the front windshield 4 of the automobile and the instrument panel 3 of the automobile. Along with the increase of the gas pressure in the gas bag supporting cavity 101, the gas breaks the gas guiding weakening line 101b of the gas bag supporting cavity 1, so that the gas enters the gas bag protecting cavity 102 through the gas guiding hole 102c of the gas bag protecting cavity 102, the gas bag protecting cavity 102 is unfolded and filled between the passenger 2 and the automobile instrument panel 3, the functional requirement of sequential unfolding of the gas bag body is realized, and the head, the neck and the chest of the passenger 2 are effectively protected.
The peripheries of the two air guide weakening lines 101b of the air bag supporting cavity 101 are connected with the peripheries of the 2 air guide holes 102c of the air bag protecting cavity 102 in a sewing (or bonding mode), so that the unfolding stability of the air bag protecting cavity 102 is facilitated. The air bag supporting cavity 101 is not connected with other parts of the air bag protection cavity 102, so that the energy absorption effect on the head and the neck of the passenger 2 is generated when the air bag protection cavity 102 is in contact with the head of the passenger 2, and the head and neck injury of the passenger 2 is reduced.
Furthermore, the peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity through sewing.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides an automobile safety gasbag two-chamber structure air pocket, includes the air pocket body, its characterized in that: the air bag body is of a double-cavity structure and consists of an air bag supporting cavity and an air bag protecting cavity; the air bag body is arranged at the front cross beam at the passenger side of the automobile ceiling, and the air bag supporting cavity is unfolded along the front windshield of the automobile and is supported between the front windshield of the automobile and the instrument panel; the air bag protection cavity is filled between the passenger and the automobile instrument panel after being unfolded; two air guide weakening areas are arranged on the air bag supporting cavity and adjacent to the air bag protecting cavity, two air guide holes are arranged in the air bag protecting cavity corresponding to the air guide weakening areas, the peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity, and the air bag supporting cavity and the air bag protecting cavity are connected into a complete air bag; the surface of the air bag supporting cavity is provided with a gas generator mounting hole for mounting a gas generator and fixing an air bag; the air bag protection cavity is provided with an exhaust hole for controlling the internal pressure of the air bag.
2. The airbag with dual chamber structure of claim 1, wherein: the peripheries of the two air guide weakening areas of the air bag supporting cavity are connected with the peripheries of the two air guide holes of the air bag protecting cavity in a sewing or bonding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455523.XA CN109466497B (en) | 2018-11-30 | 2018-11-30 | Air bag with double-cavity structure for automobile safety air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455523.XA CN109466497B (en) | 2018-11-30 | 2018-11-30 | Air bag with double-cavity structure for automobile safety air bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109466497A CN109466497A (en) | 2019-03-15 |
| CN109466497B true CN109466497B (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811455523.XA Active CN109466497B (en) | 2018-11-30 | 2018-11-30 | Air bag with double-cavity structure for automobile safety air bag |
Country Status (1)
| Country | Link |
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| CN (1) | CN109466497B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622804B (en) * | 2020-12-15 | 2022-03-08 | 南京交通职业技术学院 | Safety airbag for protecting vehicle from secondary impact and protection method thereof |
| CN113183912A (en) * | 2021-06-11 | 2021-07-30 | 锦州锦恒汽车安全系统股份有限公司 | Side ceiling air bag module for automobile passenger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2345669A (en) * | 1999-01-12 | 2000-07-19 | Autoliv Dev | Roof mounted air-bag |
| CN1524739A (en) * | 2003-02-26 | 2004-09-01 | 高田株式会社 | Airbag and airbag system |
| WO2017172696A1 (en) * | 2016-03-30 | 2017-10-05 | Tk Holdings Inc. | Airbag module |
| CN207000393U (en) * | 2017-05-12 | 2018-02-13 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of overhead type air bag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102474669B1 (en) * | 2015-10-21 | 2022-12-07 | 현대모비스 주식회사 | Cushion of passenger air bag device |
-
2018
- 2018-11-30 CN CN201811455523.XA patent/CN109466497B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2345669A (en) * | 1999-01-12 | 2000-07-19 | Autoliv Dev | Roof mounted air-bag |
| CN1524739A (en) * | 2003-02-26 | 2004-09-01 | 高田株式会社 | Airbag and airbag system |
| WO2017172696A1 (en) * | 2016-03-30 | 2017-10-05 | Tk Holdings Inc. | Airbag module |
| CN207000393U (en) * | 2017-05-12 | 2018-02-13 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of overhead type air bag |
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| Publication number | Publication date |
|---|---|
| CN109466497A (en) | 2019-03-15 |
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