CN101234627A - Automatically pressure-adjusting type curtain type air bag - Google Patents
Automatically pressure-adjusting type curtain type air bag Download PDFInfo
- Publication number
- CN101234627A CN101234627A CNA2008100105281A CN200810010528A CN101234627A CN 101234627 A CN101234627 A CN 101234627A CN A2008100105281 A CNA2008100105281 A CN A2008100105281A CN 200810010528 A CN200810010528 A CN 200810010528A CN 101234627 A CN101234627 A CN 101234627A
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- pressure
- air
- air bag
- overflow
- air chamber
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Abstract
The invention which relates to an automatic pressure regulating curtain air bag comprises an air bag; an air filling device and a pulling rope or a pulling stripe which are connected with the air bag; an air filling duct which is communicated with the air filling device is arranged in the air bag. The air bag is characterized in that: a high-pressure air chamber and an overflow air chamber are arranged in the air bag; the high-pressure air chamber is communicated with the air filling duct directly; an overflow channel is arranged between the high-pressure air chamber and the overflow air chamber in the air bag; a separation belt is arranged on the overflow air chamber. The automatic pressure regulating curtain air bag has the advantages of that when the pressure in the high-pressure air chamber is up to the designed pressure, the air breaks the separation belt and enters into the overflow air chamber through the overflow channel to reduce the pressure in the high-pressure air chamber, thereby playing an effect of buffering; the overflow air chamber can keep the internal pressure of the whole air bag to prevent passengers from contacting with external collision objects caused by excessively releasing the pressure in the air bag; furthermore, the overflow air chamber with a certain pressure can provide protections for the passengers with non-normal sitting positions or heads of passengers that move to the area due to collisions, and increase protection areas of the curtain air bag.
Description
Technical field
The present invention relates to a kind of curtain type gas bag that is provided on the automobile, particularly a kind of automatically pressure-adjusting type curtain type air bag.
Background technology
Curtain airbag is installed on the longeron of car roof limit, prevents that in the automobile side impact accident head of passenger is subjected to the bump of hard thing (for example column in the car) in outside invader or the car.When bumping, curtain airbag can be inflated in airbag by gas filled device, makes curtain type gas bag launch and cover the side vehicle window fully from roof side rail, protection passenger's head.
Existing curtain type gas bag is to be made of airbag, inflatable component and the drawstring that is fixed on the airbag edge.Being provided with a plurality of air chambers in airbag, is fully separate or complete mutual conduction between the air chamber, and therefore after airbag was full of, the pressure of each air chamber was identical.After head of passenger and airbag collision, air pressure in the air chamber can constantly rise along with the intrusion of head of passenger, because the air pressure in the air chamber discharges nowhere, causes the hardness of airbag to increase gradually, the antagonistic force that head of passenger is subjected to increases, thereby head of passenger is come to harm.
Summary of the invention
The objective of the invention is to solve the problems referred to above that prior art exists; but provide a kind of automatically pressure-adjusting type curtain type air bag of automatically regulating airbag internal pressure; this automatically pressure-adjusting type curtain type air bag can prevent owing to the too high head of passenger that hurts of airbag internal pressure; thereby can more effective protection occupant, and can enlarge self protection zone.
The present invention is achieved in that it has an airbag, on airbag, be connected with gas filled device and stay cord or drawstring, in airbag, be provided with the inflating catheter that is communicated with gas filled device, its special character is: be provided with plenum chamber and overflow air chamber in airbag, described plenum chamber directly communicates with inflating catheter, in airbag, between plenum chamber and overflow air chamber, be provided with overflow ducts, on overflow ducts, be provided with insulation strip.
Above-mentioned automatically pressure-adjusting type curtain type air bag, described insulation strip are to be made by sewing thread to form or formed by adhesive tape bonding.
Above-mentioned automatically pressure-adjusting type curtain type air bag, described insulation strip are to form by making through the cloth of clip.
Advantage of the present invention is: owing to be provided with plenum chamber and overflow air chamber in airbag, plenum chamber links to each other by overflow ducts with the overflow air chamber, and separate with insulation strip, when the pressure in the plenum chamber raises and reaches design pressure, gas will break through insulation strip by overflow ducts and enter the overflow air chamber, reduce the pressure in the plenum chamber, thereby play the effect of buffering; And the overflow air chamber can keep whole airbag pressure inside, prevents that excessive release of airbag internal pressure from causing the passenger to contact extraneous collision thing; Have certain pressure in the overflow air chamber in addition, can increase the protection zone of curtain type gas bag to the passenger of improper sitting posture or because collision movement provides protection to this regional head of passenger.
Description of drawings
Fig. 1 is structural representation of the present invention (corresponding embodiment 1);
Fig. 2 is the comparison diagram that concerns of the stressed and displacement of the present invention and existing curtain type gas bag head of passenger when work;
Fig. 3 is structural representation of the present invention (corresponding embodiment 2).
Among the figure: 1-airbag, 101-plenum chamber, 102-overflow air chamber, 103-overflow ducts, 2-gas filled device, 3-stay cord or drawstring, 4-inflating catheter, 5-insulation strip.
The specific embodiment
As shown in Figure 1, the present invention has an airbag 1, on airbag 1, be connected with gas filled device 2 and stay cord or drawstring 3, in airbag 1, be provided with the inflating catheter 4 that is communicated with gas filled device 2, in airbag 1, be provided with plenum chamber 101 and overflow air chamber 102, described overflow air chamber 102 is located at the middle part of airbag 1, and the quantity of overflow air chamber 102 can be one or more (overflow air chamber 102 can be separately positioned in zones of different when being a plurality of), and overflow air chamber 102 is an example with one in the present embodiment.Described plenum chamber 101 directly communicates with inflating catheter 4, in airbag 1, between plenum chamber 101 and overflow air chamber 102, be provided with overflow ducts 103, on overflow ducts 103, be provided with insulation strip 5, described insulation strip 5 is to be made by sewing thread to form or formed or formed by making through the cloth of clip by adhesive tape bonding, and insulation strip 5 is made with sewing thread and become example in the present embodiment.
When vehicle generation side collision or when rolling; gas filled device 2 is operated according to the signal of vehicle transmission; charge into the gas of its storage inside in the plenum chamber 101 of airbag 1 by inflating catheter 4; inflation back airbag 1 can expand between vehicle periphery and head of passenger, thus protection passenger's head.When the internal pressure of plenum chamber 101 increases because of passenger's head impact and reaches design-calculated pressure, gas can break through the insulation strip 5 that is located on the overflow ducts 103, enter overflow air chamber 102, thereby reduced the internal pressure of plenum chamber 101, therefore can reduce the peak acceleration that head of passenger bump plenum chamber 101 is produced, promptly reduce to act on the power on the head of passenger.
Figure 2 shows that the present invention and existing curtain type gas bag when work head of passenger stressed and displacement concern comparison diagram, as can be seen from the figure in early stage of passenger's head impact airbag 1, because the pressure in the plenum chamber 101 is bigger, so the power value that head of passenger is subjected to rises very fast, intrusion along with head of passenger, plenum chamber 101 pressure inside can increase gradually, when reaching design pressure, insulation strip 5 is torn, gas in the plenum chamber 101 can carry out overflow air chamber 102 by overflow ducts 103, plenum chamber 101 pressure inside have been reduced, so curve tends towards stability, guaranteed that like this plenum chamber 101 absorbs more energy in collision early stage, the later stage absorbs less energy and prevents that head of passenger is stressed excessive, prevents that simultaneously passenger's head intrusion airbag 1 inside from too much causing head directly to clash into exterior object.
As shown in Figure 3, the present invention has an airbag 1, is provided with plenum chamber 101 and overflow air chamber 102 in airbag 1, and described overflow air chamber 102 is one and is located at the front portion of airbag 1 that other is with embodiment 1.
Claims (3)
1, a kind of automatically pressure-adjusting type curtain type air bag, comprise airbag (1), on airbag (1), be connected with gas filled device (2) and stay cord or drawstring (3), in airbag (1), be provided with the inflating catheter (4) that is communicated with gas filled device (2), it is characterized in that: in airbag (1), be provided with plenum chamber (101) and overflow air chamber (102), described plenum chamber (101) directly communicates with inflating catheter (4), in airbag (1), be positioned between plenum chamber (101) and the overflow air chamber (102) and be provided with overflow ducts (103), on overflow ducts (103), be provided with insulation strip (5).
2, automatically pressure-adjusting type curtain type air bag according to claim 1 is characterized in that: described insulation strip (5) is to be made by sewing thread to form or formed by adhesive tape bonding.
3, automatically pressure-adjusting type curtain type air bag according to claim 1 is characterized in that: described insulation strip (5) is to form by making through the cloth of clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100105281A CN101234627A (en) | 2008-03-01 | 2008-03-01 | Automatically pressure-adjusting type curtain type air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100105281A CN101234627A (en) | 2008-03-01 | 2008-03-01 | Automatically pressure-adjusting type curtain type air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101234627A true CN101234627A (en) | 2008-08-06 |
Family
ID=39918609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100105281A Pending CN101234627A (en) | 2008-03-01 | 2008-03-01 | Automatically pressure-adjusting type curtain type air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101234627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670818A (en) * | 2008-09-09 | 2010-03-17 | 现代自动车株式会社 | Exterior airbag for vehicles |
| CN107757544A (en) * | 2016-08-23 | 2018-03-06 | 福特全球技术公司 | Vehicular sideview gas curtain with the drawstring including hole |
-
2008
- 2008-03-01 CN CNA2008100105281A patent/CN101234627A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670818A (en) * | 2008-09-09 | 2010-03-17 | 现代自动车株式会社 | Exterior airbag for vehicles |
| CN101670818B (en) * | 2008-09-09 | 2014-06-18 | 现代自动车株式会社 | Exterior airbag for vehicles |
| CN107757544A (en) * | 2016-08-23 | 2018-03-06 | 福特全球技术公司 | Vehicular sideview gas curtain with the drawstring including hole |
| CN107757544B (en) * | 2016-08-23 | 2022-05-31 | 福特全球技术公司 | Vehicle side curtain with pull straps including holes |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080806 |