CN1295107C

CN1295107C - Tubular composond air pocket

Info

Publication number: CN1295107C
Application number: CNB2004100466099A
Authority: CN
Inventors: 钟志华; 何文
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2004-07-29
Filing date: 2004-07-29
Publication date: 2007-01-17
Anticipated expiration: 2024-07-29
Also published as: CN1597395A

Abstract

The present invention discloses a tube type composite secure air bag which aims to provide the tube type composite secure air bag which has the advantages of few air consumption and small impact force for the human body when the air bag is inflated; meanwhile, the air bag can be quickly and effectively inflated and expanded according to predeterminate directions, the damage to the human body caused by inflation of the air bag can be largely reduced, and the protective performance of the secure air bag can be improved. The present invention comprises a truss (1) and a bumping air bag (5), wherein the truss (1) is formed by connection of hollow air tubes, and the bumping air bag (5) is arranged above the truss (1); one or more than one air filling opening (2) is arranged on the bottom of the truss (1), air pressure diaphragms (3) are arranged on the connecting points of the longitudinal air tubes and the transversal air tubes of each layer of the truss (1), and an air outlet hole (4) which is communicated with the bumping air bag (5) is arranged on the top of the truss (1).

Description

Tube Type Compound Safety Gasbag

Technical field:

The present invention relates to a kind of safety guard, be specifically related to a kind of structural development that is used for the safety air bag of vehicle driver and crew protection.

Background technology:

At present, air bag system is more and more used as a kind of restraint device of protection driver and crew head in the vehicle.Present safety air bag, the air cushion that all adopts the airbag inflation to form a softness plays buffering energy-absorbing function, to reduce the injury to driver and crew.Crashing, when being necessary to start safety air bag, producing a large amount of gases by gas generator airbag is inflated, making its protective cover that expands into a softness, buffering is to the collision impact of human body.During air bag system work, be full of air bag rapidly by the gas that produces in the gas generator.Because this is an instantaneous expansion process, the expansion mode of air bag has very big influence to the performance of air bag, and gas pressure change and resulting pressure value in it also have very big influence to the degree of protection that human body provided.Conventional balloon generally all is first inflation, air bag is gone out after expansion and is launched, because the aeration speed of air bag is very fast, the huge impulsive force forward that produces when air bag begins to expand, probably human body is damaged, especially at people's one air bag closely under the situation, be easy to driver and crew's chest very near from air bag and that be in its expansion direction is damaged.And air bag be in order to provide the better protect effect, and its volume generally can not be too little, and for the airbag of driver side, its volume is generally 30～60L, and the airbag of passenger side is then wanted about 60～150L.Like this, when inflation, make airbag aerification and expansion rapidly fully at short notice, charge air and aeration speed are all had very big requirement.

Summary of the invention:

Technical matters to be solved by this invention is to overcome the defective that above-mentioned prior art exists, provide a kind of gas consumption few, can be fast and effeciently inflating expanded by the preset bearing, the impulsive force that human body produced during airbag inflation is little, can significantly reduce because of injury that airbag inflation causes human body, improve the Tube Type Compound Safety Gasbag of air bag device protective value.

For solving the problems of the technologies described above, the present invention adopts following technical proposals: a kind of Tube Type Compound Safety Gasbag, it is characterized in that it comprises truss that is formed by connecting by hollow tracheae and the buffer air bag that is arranged at the truss top, be provided with one or more inflation inlet in the bottom of described truss, every layer of vertical tracheae at described truss is provided with the air pressure diaphragm with horizontal tracheae junction, is provided with the one or more air gates that communicate with buffer air bag at described truss top.

As a further improvement on the present invention, a reaction plate is set between described truss and buffer air bag, described reaction plate is fixed in the truss top, and buffer air bag is fixed on the reaction plate again.

In the tracheae at described truss top, be provided with another air pressure diaphragm with the interface of air gate.

Described truss is to be formed by connecting by two layers or more horizontal tracheae and vertical tracheae of being supported between every adjacent two layers of horizontal tracheae.

Described truss can be square or polygonal truss, also can be circle or oval truss.

Described square truss be by be upper and lower layer that matrix pattern arranges laterally tracheae and be supported in upper and lower layer laterally the vertically arranged vertical tracheae that is between the tracheae be formed by connecting, inflation inlet is offered in the bottom of the horizontal tracheae of lower floor, and one or more air gates are offered at the top of the horizontal tracheae in upper strata.Described vertical tracheae can be made as five, a center that is arranged at matrix pattern, and all the other four four jiaos of being symmetrically arranged in matrix pattern, described vertical tracheae also can be more than five, is distributed in upper and lower layer laterally between the tracheae.

Described circle or oval truss are circular or oval laterally tracheae and be supported in and be vertically arranged vertical tracheae between every adjacent two layers and be formed by connecting by upper, middle and lower-ranking, inflation inlet is offered in the bottom of the horizontal tracheae of lower floor, and one or more air gates are offered at horizontal tracheae top, upper strata.Described vertical tracheae can be provided with more than three or three for every layer, be distributed in, the horizontal tracheae in middle level and in, between the horizontal tracheae of lower floor.

Tube Type Compound Safety Gasbag of the present invention; constitute by hollow tracheae truss that is formed by connecting and the buffer air bag that is arranged at the truss top; the tubular type truss structure is inflated used tolerance than airbag and is significantly reduced; can reach the inflation effect of common safety air bag with less gas; and make truss and buffer air bag have two kinds of different rigidity; make and have lower rigidity with the contacted buffer air bag of human body; the impulsive force that during with airbag inflation human body is produced is become the shock absorbing of low-pressure gas of the present invention by the moment impact of conventional balloon inner high voltage gas; and truss can launch by predetermined direction; to the injury of human body, improve the protectiveness of air bag device when having significantly reduced airbag inflation.Can reduce the vehicle effectively because the driver and crew that collision or secondary collision cause damage or avoid secondary collision.

Description of drawings:

Fig. 1 is the structural representation block diagram (square truss-like) of the embodiment of the invention;

Fig. 2 is the structural representation block diagram (circular truss-like) of another embodiment of the present invention;

Fig. 3 is the structural representation front view of the square truss-like of the present invention;

Fig. 4 is the structural representation birds-eye view of the square truss-like of the present invention;

Fig. 5 is the A-A cutaway view of Fig. 3;

Fig. 6 is the structural representation front view of the circular truss-like of the present invention;

Fig. 7 is the structural representation birds-eye view of the circular truss-like of the present invention;

Fig. 8 is the structural representation left view of the circular truss-like of the present invention.

Each label is represented among the figure:

1, truss 2, inflation inlet 3, air pressure diaphragm

4, air gate 5, buffer air bag 6, reaction plate

7, seam 8, air pressure diaphragm 11, vertical tracheae

12, the horizontal tracheae 13 in upper strata, the horizontal tracheae 14 of lower floor, the horizontal tracheae in middle level.

The specific embodiment:

Shown in Fig. 1～8, Tube Type Compound Safety Gasbag of the present invention, it comprises truss 1 that is formed by connecting by hollow tracheae and the buffer air bag 5 that is arranged at truss 1 top, be provided with one or more inflation inlet 2 in the bottom of truss, every layer of vertical tracheae at described truss is provided with air pressure diaphragm 3 with horizontal tracheae junction, can bear gaseous tension in various degree, the inflation direction of control truss 1.Truss 1 top is provided with the air gate 4 that communicates with buffer air bag 5, in the tracheae at truss 1 top, be provided with another air pressure diaphragm 8 with the interface of air gate 4, charge air conditioning breaks through another air pressure diaphragm 8 by 5 inflations of 4 pairs of buffer air bags of air gate, unites to form the high-low pressure composite air bag.One reaction plate 6 is set between truss 1 and buffer air bag 5, and reaction plate 6 is fixed in truss 1 top, shown in Fig. 4,7, can link together by seam 7, and buffer air bag 5 is sutured in again on the reaction plate 6.Truss 1 can be two layers or more horizontal tracheae and vertical tracheae of being supported between per two layers of horizontal tracheae is formed by connecting, and can be square, polygon, circle or oval.

Fig. 1,3,4,5 shows the Tube Type Compound Safety Gasbag of square truss structure, square truss be by be upper and lower layer that matrix pattern arranges laterally

tracheae

12,13 and be supported in upper and lower layer laterally the vertically arranged vertical tracheae 11 that is between the

tracheae

12,13 be formed by connecting, vertically tracheae 11 is five, a center that is arranged at matrix pattern, all the other four four jiaos of being symmetrically arranged in matrix pattern.Vertically tracheae 11 also can be more than five, is distributed in upper and lower layer laterally between the

tracheae

12,13.

Inflation inlet 2 is arranged at lower floor horizontal tracheae 13 bottoms, reaction plate 6 links to each other with the horizontal tracheae 12 in upper strata by seam 7, buffer air bag 5 is sutured on the reaction plate 6, horizontal tracheae 12 center of top in upper strata offer the air gate 4 that communicates with buffer air bag 5, and are provided with another air pressure diaphragm 8 at the interface with air gate 4.

Fig. 2,6,7,8 shows another embodiment of the present invention, is the tubular type safety air bag of circular truss structure, is by the circular laterally

tracheae

12,14,13 of upper, middle and lower-ranking and is supported in and is vertically arranged vertical tracheae 11 between per two layers and is formed by connecting; Vertically tracheae 11 every layer can be provided with more than three to three, be distributed in, the

horizontal tracheae

12,14 in middle level and in, between the

horizontal tracheae

14,13 of lower floor, four of this example employings.Inflation inlet 2 is arranged at lower floor horizontal tracheae 13 bottoms, reaction plate 6 links to each other with the horizontal tracheae 12 in upper strata by seam 7, buffer air bag 5 is sutured on the reaction plate 6, horizontal tracheae 12 tops, upper strata offer 4 air gates 4 that communicate with buffer air bag 5 along circumference, and are provided with another air pressure diaphragm 8 at the interface with air gate 4.Present embodiment has better folding property at mode of operation not.

Principle of work of the present invention is: inflation inlet 2 joins with the air extractor duct of gas generator, the gas that gas generator produces is via inflation inlet 2, at first the horizontal tracheae 13 of truss 1 bottom is inflated, when pressure surpasses the bearing pressure of air pressure diaphragm 3, gas breaks through other tracheae inflations of 3 pairs of truss 1 of air pressure diaphragm, after truss 1 launched, charge air conditioning broke through another air pressure diaphragm 8 again, by 5 inflations of 4 pairs of buffer air bags of air gate; In the high-pressure air pipe truss 1 and the vehicle, form the infrabar protective cover of a softness between the driver and crew.The present invention is arranged in the automobile, when bumping, can effectively protect driver and crew.The quantity of the bearing pressure of change air pressure diaphragm 3,8 and the air gate 4 at truss 1 top can be regulated buffer air bag 5 gas inside pressure, satisfies the demand of different occasions.

Claims

1, a kind of Tube Type Compound Safety Gasbag, it is characterized in that it comprises the truss (1) that is formed by connecting by hollow tracheae and is arranged at the buffer air bag (5) of truss (1) top, be provided with one or more inflation inlet (2) in the bottom of described truss (1), vertical, horizontal tracheae junction at described truss (1) is provided with air pressure diaphragm (3), is provided with the one or more air gates (4) that communicate with buffer air bag (5) at described truss (1) top.

2, Tube Type Compound Safety Gasbag according to claim 1, it is characterized in that between truss (1) and buffer air bag (5), a reaction plate (6) being set, described reaction plate (6) is fixed in truss (1) top, and buffer air bag (5) is fixed in again on the reaction plate (6).

3, Tube Type Compound Safety Gasbag according to claim 1 and 2 is characterized in that in the tracheae at described truss (1) top, is provided with another air pressure diaphragm (8) with the interface of air gate (4).

4, Tube Type Compound Safety Gasbag according to claim 3 is characterized in that described truss (1) is to be formed by connecting by two layers or more horizontal tracheae and vertical tracheae of being supported between every adjacent two layers of horizontal tracheae.

5, Tube Type Compound Safety Gasbag according to claim 4 is characterized in that described truss (1) is square, polygon, circle or oval truss.

6, Tube Type Compound Safety Gasbag according to claim 5, it is characterized in that described square truss (1) is that laterally tracheae (12), (13) and the vertically arranged vertical tracheae (11) that is that is supported between the horizontal tracheae (12) of upper and lower layer, (13) are formed by connecting by being upper and lower layer that matrix pattern arranges, inflation inlet (2) is offered in the bottom of the horizontal tracheae of lower floor (13), and the horizontal tracheae in upper strata (12) top offers one or more air gates (4).

7, Tube Type Compound Safety Gasbag according to claim 6 is characterized in that described vertical tracheae (11) is five, a center that is arranged at matrix pattern, all the other four four jiaos of being symmetrically arranged in matrix pattern.

8, Tube Type Compound Safety Gasbag according to claim 6 is characterized in that described vertical tracheae (11) is more than five, is distributed in upper and lower layer laterally between tracheae (12), (13).

9, Tube Type Compound Safety Gasbag according to claim 5, it is characterized in that described circle or oval truss (1) are circular or oval laterally tracheae (12), (14), (13) and be supported in and be vertically arranged vertical tracheae (11) between every adjacent two layers and be formed by connecting by upper, middle and lower-ranking, inflation inlet (2) is offered in the bottom of the horizontal tracheae of lower floor (13), and the horizontal tracheae in upper strata (12) top offers one or more air gates (4).

10, Tube Type Compound Safety Gasbag according to claim 9, it is characterized in that described vertical tracheae (11) is provided with more than three or three for every layer, be distributed in, the horizontal tracheae in middle level (12), (14) and in, between the horizontal tracheae of lower floor (14), (13).