CN101767569A - Safety air curtain with SEWN among inactive areas - Google Patents
Safety air curtain with SEWN among inactive areas Download PDFInfo
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- CN101767569A CN101767569A CN200810188200A CN200810188200A CN101767569A CN 101767569 A CN101767569 A CN 101767569A CN 200810188200 A CN200810188200 A CN 200810188200A CN 200810188200 A CN200810188200 A CN 200810188200A CN 101767569 A CN101767569 A CN 101767569A
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Abstract
The invention relates to a safety air curtain with SEWN among inactive areas, which comprises a gas generator, an air pad, a plurality of active areas and inactive areas. When the gas generator sprays the gas, the air pad is unfolded by the gas flowing through a gas supply pipe. When the gas flows into the air pad, the active areas are expanded. When the gas sprayed from the gas generator does not flow into the air pad, the inactive areas are not expanded. A gas flow adjusting device is formed between the inactive areas and the active areas, is used for cutting the gas flowing, and allows the gas to flow when the gas pressure reaches more than the specified pressure. After the active area formed by sewing the inactive areas in the air pad achieves more than a certain pressure, the sewing part is broken. Even if the gas temperature change results in the deviation of the interior pressure, the unfolded volume of the air pad is not changed, therefore the unfolding property is enhanced, the installation is convenient, and the convenience for the operators is enhanced; and as the light wires are adopted, the cost is saved, and the weight is reduced.
Description
Technical field
The present invention relates to have between the non-active region safe air curtain of SEWN (making portion), particularly, above-mentioned gas curtain inside possesses the air-flow setting device, so that gas curtain absorbs the gas buckles that temperature correlation internal pressure deviation causes.
Background technology
In general, gas-bag system is the safety device of protection passenger safety, and air bag launches between passenger and vehicle structure thing during Vehicular impact, directly runs into the injured danger of works to reduce the passenger to greatest extent.
The invention particularly relates to the safety air curtain device that is installed in vehicular sideview, when vehicular sideview was subjected to clashing into, this gas curtain can launch between passenger and car door, reached protection passenger's purpose.
Above-mentioned safe air curtain is installed along purline (Roof Rail), when during the vehicular sideview bump or behind the side impact roll-over accident taking place, can protect passenger's head or prevent that the passenger from falling out outside the car.
Fig. 1 is the pie graph of the vehicle of prior art with safe air curtain.
As shown in Figure 1, vehicle safety gas curtain 1 of the prior art comprises air cushion 3, gas generator 4 and air supply pipe (fill hose) 2, and described air cushion 3 is installed along the purline of vehicle, and when internal pressure rose, this air cushion 3 launched between passenger and car door; Described gas generator 4 is arranged on a side of above-mentioned air cushion 3, is installed in the inside of gas generator shell, is connected to above-mentioned air cushion 3, during vehicle generation side impact, to air cushion 3 compressed gas supplying; Described air supply pipe (fill hose) 2 length directions are installed in above-mentioned air cushion 3 inside, and are connected to aforesaid gas generator 4, are used for the pressure gas that aforesaid gas generator 4 takes place is fed to air cushion 3 inside.
Above-mentioned air cushion 3 is divided into a plurality of active regions 7 and non-active region 6.The pressure gas that takes place in the aforesaid gas generator 4 flows into the described active region 7 of air cushion 3, expands in described active region 7; The pressure gas that takes place in the aforesaid gas generator 4 does not flow into described non-active region, non-active region 6 non-expansion.
In order to make active region 7 interior gas flow smooth and easy, the pressure gas of aforesaid gas generator 4 rationally is distributed in zone wider in the air cushion 3, and above-mentioned air cushion 3 possesses air pillow (Pillow Pattern).
The air pillow of above-mentioned air cushion 3 is to form by the cutting of above-mentioned air cushion 3 fabrics and the work of making.
Above-mentioned air supply pipe 2 is that an end is connected gas generator 4, and the other end is installed in air cushion 3 inside with the osed top state, forms a plurality of gas discharge opening 2a, 2b, the 2c that pressure gas is discharged to air cushion 1 every a segment distance towards length direction.
The vehicle safety gas curtain of the prior art of this structure is when vehicle generation side impact, and according to the signal enabling gas generator 4 that the bump coil pickup sends, the pressure gas of aforesaid gas generator 4 stored is fed to air supply pipe 2.
At this moment; the volume of air supply pipe 2 becomes the form of circular rod; gas discharge opening 2a, 2b, 2c by the plural number of formation on the above-mentioned air supply pipe 2; to the active region of air cushion 37 supply gas; thus; when air cushion 3 launched towards the side of vehicle, the active region 7 of above-mentioned air cushion 3 began to expand, and the active region 7 of expanding in the above-mentioned air cushion 3 is by positice ground effect protection passenger.
But the gas of aforesaid gas generator changes along with temperature traverse produces pressure.The pressure of this gas generator changes to the influence of safe air curtain very greatly.In general, give birth to the extensibility deviation, cause passenger's protective value is descended, cause on a lot of expense of the development phase of deviation needs or air cushion or option, needing extra parts in high temperature and occurs at low temperatures.Recently, by changing the composition ratio of gas, the trial that reduces the gaseous tension deviation that temperature traverse causes is many, but also makes great efforts temperature traverse related pressure minimize variations that chemical reaction is caused simultaneously
Summary of the invention
According to temperature traverse the internal pressure deviation is arranged even the technical problem to be solved in the present invention provides the gas that sprays in a kind of gas generator, have the safe air curtain of SEWN between the non-active region that the also unaffected maintenance of above-mentioned air cushion launches.
In order to solve the problems of the technologies described above, vehicle of the present invention comprises with safe air curtain: when gas generator and described gas generator ejection gas, and the air cushion that the gas that flows into by air supply pipe launches; Above-mentioned air-sprung inside comprises that the pressure gas that takes place in a plurality of active regions that inflow gas expands and the aforesaid gas generator does not flow into, the non-active region that does not have expansion, and the air-flow setting device that between above-mentioned non-active region and non-active region, forms, this air-flow setting device is used to cut off gas flow, reach authorized pressure when above at gaseous tension, allow gas flow.
For allow the air-flow setting device when gaseous tension reaches authorized pressure by disrumpent feelings to allow gas flow, described air-flow setting device constitutes by the junction surface that engages active region between the above-mentioned non-active region.
Above-mentioned junction surface is for above-mentioned part active region is formed non-active region, engages above-mentioned air-sprung front-back and forms, and can be by disrumpent feelings.
Above-mentioned junction surface is by making or binding formation.
The safe air curtain that has SEWN between the non-active region of the present invention; the active region that between air cushion interior bonds non-active region, forms; reach authorized pressure at gas and make portion by disrumpent feelings when above; even so exist gas temperature to change relevant internal pressure deviation; above-mentioned air-sprung launches volume and also can not change; keep launching stability, so more effectively protect the passenger.
And safe air curtain of the present invention is installed simple, improves the convenience of operating personal, and adopts the light weight silk thread, has the effect of cost-cutting, expendable weight.
Vehicle safe air curtain of the present invention can be installed to driver's seat air bag or co-pilot seat air bag air cushion inside through improving, and can reduce the internal pressure deviation that temperature traverse causes.
Description of drawings
Fig. 1 is the pie graph of the vehicle of prior art with safe air curtain;
Fig. 2 is the pie graph of vehicle of the present invention with safe air curtain;
Fig. 3 is the enlarged drawing of diagram ' B ' among Fig. 2;
Fig. 4 is the section drawing of diagram A-A among Fig. 3.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
Fig. 2 is the pie graph of vehicle of the present invention with safe air curtain, and Fig. 3 is the enlarged drawing at B place among Fig. 2, and Fig. 4 is the section drawing of diagram A-A among Fig. 3.
Vehicle of the present invention comprises gas generator 40 and air cushion 30 with safe air curtain 10, and during aforesaid gas generator 40 ejection gases, air cushion 30 is launched by the gas that flows into by air supply pipe 20.Above-mentioned air cushion 30 comprises inner inflow gas, a plurality of active region 30a of expansion; And not inflow of pressure gas takes place in the aforesaid gas generator 40, there is not the non-active region 30b that expands.Also possess the air-flow setting device that forms between above-mentioned non-active region 30b and the non-active region 30b, this air-flow setting device is used to cut off gas flow, reaches authorized pressure when above at gaseous tension, allows gas flow.
As shown in Figure 2, above-mentioned air supply pipe 20 is that an end is connected gas generator 40, the other end is the osed top state, is installed in air cushion 30 inside, forms a plurality of gas discharge openings 21,22,23 that pressure gas is discharged to air cushion 30 every a segment distance towards length direction.
Above-mentioned air cushion 30 is towards the length direction of vehicle, forms to back quadrate part (RR-PILLAR) 33 from the front part (FR-PILLAR) 31 of vehicle, forms central portion 32 in the middle of it.
Above-mentioned air cushion 30 is divided into, the active region 30a of the expansion of compressed gas of inflow gas producer 40 and do not flow into a plurality of non-active region 30b of aforesaid gas generator 40 pressure gass.
The central portion 32 of above-mentioned air cushion 30 has, towards the vertical non-active region 30b that forms of the lower-upper length direction of above-mentioned air cushion 30.
The central authorities of above-mentioned non-active region 30b form the breakthrough part 38 that gas flows into, so that the distribution of gas that will flow into above-mentioned air cushion 30 central portions 32 is to front and back quadrate part 31,33.
In addition, the gas of above-mentioned air cushion 30 ejections is along with temperature traverse produces pressure divergence, and under hot conditions, the pressure ratio normal temperature and the pressure under the cryogenic conditions of aforesaid gas generator 40 are big, than under normal temperature and the hot conditions, the pressure of gas generator 40 is little under the cryogenic conditions.
Above-mentioned breakthrough part is adjusted means for the deviation of adjusting gas forms air-flow, with when above-mentioned air cushion 30 pressure inside rise, accelerates gas flow, and pressure hour is kept non-active region 30b.
Said flow adjustment means are that the junction surface 60 that forms by engaging the breakthrough part 38 between the above-mentioned non-active region 30b constitutes, so as gas reach authorized pressure when above by disrumpent feelings.
Above-mentioned junction surface 60 is to adopt silk thread to make breakthrough part 38, prevents gas flow.
Adopted the juncture of making in the present embodiment, described, but adhesion (glue), membranous part material etc. can also can by disrumpent feelings juncture so be defined as the portion of making 60 at junction surface described in this real-time mode 60.
Above-mentionedly make the end that portion 60 is connected to the non-active region 30b that is arranged on breakthrough part 38 upper and lowers, vertically make breakthrough part 38, the active region 30a of breakthrough part 38 is changed to non-active region 30b.
The above-mentioned portion 60 of making can adopt the various modes of making according to the pattern between the non-active region 30b, forms as the vertical and bevelled in the present embodiment and makes pattern.
Introduce the mode of operation of the vehicle of above-mentioned formation below with safe air curtain.
At first, during vehicle generation side impact, the bump coil pickup sends electric signal to aforesaid gas generator 40, and aforesaid gas generator 40 pops after receiving signal, the pressure gas that is stored in the gas generator 40 passes through connection pipe 30, flow into above-mentioned air supply pipe 20 inside.
Through the gas of above-mentioned air supply pipe 20,, flow into air cushion 30 inside by each discharge opening 21,22,23 that forms on the above-mentioned air supply pipe 20.
Flow into the gas of above-mentioned air cushion 30, will be distributed in all air cushion inside such as front part 31, central portion 32, back quadrate part 33 of above-mentioned air cushion 30.
That is, gas flow into front part, back quadrate part 31,33 and the central portion 32 of above-mentioned air cushion 30, and when filling the active region 30a of air cushion 30, the active region 30a of above-mentioned air cushion 30 expands, and launches above-mentioned air cushion 30.
Gas flows in the process of these active regions 30a expansion, and according to variation of temperature, the gaseous tension of gas generator 40 ejections changes.
As shown in Figure 3 and Figure 4, gas flows in the process of above-mentioned air cushion 30 central portions 32, and the gas interior pressure of gas generator under the cryogenic conditions 40 ejections is little, so the portion of making 60 that is arranged on above-mentioned breakthrough part 38 is not by disrumpent feelings, keep non-active region 30b, do not allow gas flow into breakthrough part 38.
As shown in Figure 4, the gas interior pressure of gas generator 40 ejections under the hot conditions is big, the portion of making 60 that is provided with in the above-mentioned breakthrough part 38 will be by disrumpent feelings, the breakthrough part 38 of non-active region 30b becomes active region 30a, accelerate gas flow, the internal capacity of above-mentioned air cushion 30 increases, and forms bigger inner space, absorbs the pressure of high pressure gas.
Like this, the gas of aforesaid gas generator 40 ejections is according to variation of temperature, gaseous tension hour, make the active region 30a between the above-mentioned air cushion 30 inner non-active region 30b that are provided with, reduce the volume between the 30a of active region, gas flows into air cushion 30 inside fast, stable expansion air cushion between passenger and car door, when gaseous tension is big, the portion of making 60 that is provided with between the non-active region 30b is by disrumpent feelings, widen the volume between the 30a of active region, so air cushion 30 can reduce the deviation between the gas interior pressure.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that those skilled in the art are done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (5)
1. have the safe air curtain of SEWN between the non-active region, it is characterized in that this safe air curtain comprises: gas generator; During aforesaid gas generator ejection gas, the air cushion of the gas expansion that is flowed into by air supply pipe; When gas flow into above-mentioned air-sprung inside, a plurality of active regions of expansion; Do not flow into the pressure gas that aforesaid gas generator produces, non-bloating non-active region; And the air-flow setting device is set between above-mentioned non-active region and the non-active region, cutting off gas flow,, allow gas flow when gaseous tension reaches authorized pressure when above.
2. the safe air curtain that has SEWN between the non-active region according to claim 1, it is characterized in that, described air-flow setting device is that the junction surface by the joint active region that forms between the described non-active region constitutes, and to reach authorized pressure disrumpent feelings by gaseous tension when above when gaseous tension.
3. have the safe air curtain of SEWN between the non-active region according to claim 2, it is characterized in that, described junction surface is to make described air-sprung front-back to form, and the part of described active region is formed non-active region, and can be by disrumpent feelings.
4. have the safe air curtain of SEWN between the non-active region according to claim 2, it is characterized in that, formation is made at described junction surface.
5. have the safe air curtain of SEWN between the non-active region according to claim 2, it is characterized in that, described junction surface forms by binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188200A CN101767569A (en) | 2008-12-30 | 2008-12-30 | Safety air curtain with SEWN among inactive areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188200A CN101767569A (en) | 2008-12-30 | 2008-12-30 | Safety air curtain with SEWN among inactive areas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101767569A true CN101767569A (en) | 2010-07-07 |
Family
ID=42500717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810188200A Pending CN101767569A (en) | 2008-12-30 | 2008-12-30 | Safety air curtain with SEWN among inactive areas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101767569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020075573A (en) * | 2018-11-06 | 2020-05-21 | トヨタ自動車株式会社 | Vehicular curtain air bag device |
-
2008
- 2008-12-30 CN CN200810188200A patent/CN101767569A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020075573A (en) * | 2018-11-06 | 2020-05-21 | トヨタ自動車株式会社 | Vehicular curtain air bag device |
| JP7103174B2 (en) | 2018-11-06 | 2022-07-20 | トヨタ自動車株式会社 | Vehicle curtain airbag device |
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Application publication date: 20100707 |