CN103909897B - A kind of gas distributor for air bag - Google Patents
A kind of gas distributor for air bag Download PDFInfo
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- CN103909897B CN103909897B CN201310004901.3A CN201310004901A CN103909897B CN 103909897 B CN103909897 B CN 103909897B CN 201310004901 A CN201310004901 A CN 201310004901A CN 103909897 B CN103909897 B CN 103909897B
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- Prior art keywords
- flexible
- gas
- inner tube
- tube
- outer tube
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- 239000000463 material Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Air Bags (AREA)
Abstract
The present invention provides a kind of gas distributor for air bag, the gas distributor is connected inside the airbag of the air bag and with a gas generator, gas caused by the gas generator is filled with airbag by the gas distributor, the gas distributor includes flexible inner tube and flexible outer tube, the flexible outer tube is located at the periphery of the flexible inner tube, inner air vent is offered on the flexible inner tube, outer stomata is offered on the flexible outer tube, the flexible inner tube causes the inner air vent to be separated with the outer stomata less than the flexible outer tube.Due to spaced apart between inner air vent and outer stomata, gas passes through two layers of stomata, adds buffering, can preferably resist the temperature of thermal current and the impact of particulate.
Description
Technical field
The present invention relates to safe automobile air bag, more particularly to a kind of gas distributor for air bag.
Background technology
As shown in figure 1, existing air bag generally includes gas generator（It is not shown）, gas distributor 1 ' and airbag
（It is not shown）.Gas generator can be detonated the substantial amounts of gas of moment generation；Airbag is connected with gas generator, and gas 4 ' enters
After entering into airbag, airbag is expanded rapidly for protecting occupant；Gas distributor 1 ' is located at the bottom of airbag, gas distributor 1 '
Bottom surface be provided with and be used to the mounting hole 2 ' of gas generator be installed, gas 4 ' is first into gas after being gone out from gas generator
In distributor 1 ', then it is flowed into airbag from the venthole 3 ' of gas distributor 1 ', gas 4 ' is located to carry out in gas distributor 1 '
Buffering, resists the temperature of thermal current and the impact of particulate, protects airbag not destroyed.
Existing gas distributor only has a Rotating fields, and gas is quickly entered in airbag from gas distributor, resistance heat
The temperature of air-flow and the poor-performing of particle impact.Although gas distributor also is double-decker, but ectonexine is identical,
When gas impact air distributor, double-layer structure is close together under impact, equally exist resistance thermal current temperature and
The problem of poor-performing of particle impact.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of resistance temperature of thermal current and rushing for particulate
The stronger gas distributor of the performance hit.
Specifically, technical scheme provides a kind of gas distributor for air bag, the gas distributor
It is connected inside the airbag of the air bag and with a gas generator, gas caused by the gas generator passes through the gas
Body distributor is filled with airbag, and the gas distributor includes flexible inner tube and flexible outer tube, and the flexible outer tube is positioned at described
The periphery of flexible inner tube, inner air vent is offered on the flexible inner tube, outer stomata, the flexibility are offered on the flexible outer tube
Inner tube causes the inner air vent to be separated with the outer stomata less than the flexible outer tube.
Preferably, the central axis of the flexible inner tube and the flexible outer tube is parallel to each other, the week of the flexible inner tube
The long girth less than the flexible outer tube.
Preferably, the equal length of the flexible inner tube and the flexible outer tube along central axis.
Preferably, the central axis of the flexible inner tube and the flexible outer tube is mutually perpendicular to.
Preferably, the flexible inner tube and the flexible outer tube are made up of a piece of cross sheet material, the cross sheet material
Upper every two blocks of plates being located along the same line form the flexible inner tube and the flexible outer tube respectively after enclosing.
Preferably, the inner air vent mutually staggers with the outer stomata.
Preferably, the number of the inner air vent is more than the number of the outer stomata.
Preferably, the flexible inner tube and the flexible outer tube are made up of coating fabric.
After adopting the above technical scheme, have the advantages that：Due to being spaced a spacing between inner air vent and outer stomata
From gas passes through two layers of stomata, adds buffering, can preferably resist the temperature of thermal current and the impact of particulate.
Brief description of the drawings
Fig. 1 is the structural representation of existing gas distributor；
Fig. 2 is the perspective view of gas distributor in the first embodiment of the invention；
Fig. 3 is the structural representation of air bag in the first embodiment of the invention；
Fig. 4 is the perspective view of gas distributor in second of embodiment of the invention；
Fig. 5 is the expanded view of gas distributor in the third embodiment of the invention；
Fig. 6 is the expanded view of gas distributor in the 4th kind of embodiment of the invention.
The reference table of comparisons：
1 ' --- gas distributor 2 ' --- mounting hole 3 ' --- venthole
4 ' --- gas
1 --- flexible inner tube 2 --- flexible outer tube 4 --- airbag
5 --- cross sheet material 6 --- gas generator 11 --- inner air vents
12 --- interior installing hole 21 --- outer stomata 51 --- short blocks
52 --- long block
Embodiment
Below in conjunction with the accompanying drawings come further illustrate the present invention embodiment, hereinafter identical mark refer to it is identical
Element.Heretofore described " longitudinal direction " refers to the direction of the horizontal plane in figure.
In the first of the invention embodiment, as Figure 2-3, gas distributor located at 4 bags of inside of gas of air bag and with gas
Body generator 6 is connected, and gas is filled with airbag 4 by gas distributor caused by gas generator 6, and gas distributor includes soft
Property inner tube 1 and flexible outer tube 2, flexible outer tube 2 are set in outside flexible inner tube 1.In the present embodiment, air bag is preceding air bag, is arranged on
On instrument board, gas generator 6 uses dish-shaped gas generator.The central axis of flexible outer tube 2 and flexible inner tube 1 is along water
Square to arrangement, flexible outer tube 2 is located at the periphery of flexible inner tube 1, is offered on the bottom surface of flexible inner tube 1 for installing gas hair
The interior installing hole 12 of device 6 is given birth to, inner air vent 11 is further opened with flexible inner tube 1, outer stomata 21 is offered on flexible outer tube 2, it is flexible
Inner tube 1 is less than flexible outer tube 2 and inner air vent 11 is separated with outer stomata 21.The central axis phase of flexible inner tube 1 and flexible outer tube 2
Mutual parallel and along central axis equal length, the girth of flexible inner tube 1 are less than the girth of flexible outer tube 2, and inner air vent 11 has four
Individual, outer stomata 21 has one, and the aperture of inner air vent 11 is less than the aperture of outer stomata 21, and inner air vent 11 is with outer stomata 21 in level side
Mutually stagger upwards.
Gas is first into the cavity of flexible inner tube 1 of gas distributor, in figure after gas generator 6 is gone out
The left and right sides of flexible outer tube 2 and flexible inner tube 1 communicates with airbag 4.The signified direction of arrow is the flowing side of gas in Fig. 2
To portion gas is entered in airbag 4 from the left and right sides of flexible inner tube 1；Another part gas enters four inner air vents 11
In, then be flowed into from inner air vent 11 in outer stomata 21；Left and right of also a small amount of gas from inner air vent 11 by flexible outer tube 2
Both sides are flowed into airbag 4.After being ejected due to gas from gas generator 6, pass through the left and right sides of flexible inner tube 1 first
Flowed outwardly with inner air vent 11, now airflow direction is changed, and prevents that 4 very first time of airbag internal space is relatively narrow and small
In the case of by HTHP hot gas damage；Again because inner air vent 11 and outer stomata 21 mutually stagger in the horizontal direction, and
And be spaced a distance on longitudinal direction, gas is flowed into outer stomata 21 from inner air vent 11 or from the left and right sides of flexible outer tube 2
Airflow direction is also changed during being flowed into airbag 4.When gas enters airbag 4, hot gas is avoided to airbag 4
Damage.
In addition, the distribution of stomata also functions to the effect of guiding on flexible outer tube 2 and flexible inner tube 1, air-flow can be controlled
Direction, the predetermined part for needing preferentially to deploy is allowed first to deploy, such as：Airbag court is allowed to be advantageous to protect the orientation preferentially exhibition of occupant
Open.
Further, substantial amounts of particulate can be produced, particulate is with gas during gas is produced in gas generator 6
Spray, speed, certain impact can be produced to the inwall of airbag 4, even destroy airbag 4.Gas distributor plays stop
The effect of particulate, as shown in figure 3, when only one layer of flexible outer tube 2, or two sheets of flexible pipe size is identical and when overlapping, directly
Line a inner side can play a part of stopping particulate, and straight line a outside can not then stop particulate；When adding flexible inner tube 1
When, due to flexible inner tube 1 and equal length of the flexible outer tube 2 along central axis, flexible inner tube 1 in the vertical with flexible outer tube 2
It is spaced a distance, for straight line b relative to the outward-dipping certain angles of straight line a, the scope of so stop particulate is wider, can
Stop more particulates.
Further, since inner air vent 11 mutually staggers in the horizontal direction with outer stomata 21, the work for stopping particulate can be also played
With.
It is preferred that flexible inner tube 1 can be more than length of the flexible outer tube 2 along Chinese and Western axis along the length on central axis,
More particulates can so be stopped.
It is preferred that inner air vent 11 can be located on same longitudinal axis with outer stomata 21, the aperture of inner air vent 11 is more than outer
The aperture of stomata 21.So gas is from during larger inner air vent 11 enters less outer stomata 21, the direction of gas
Also it can change, can also play a part of resisting high-temperature gas impact.
It is preferred that the number and aperture of inner air vent 11 and outer stomata 21 can be with unlimited.Outside the number of inner air vent 11 is more than
During the number of stomata 21, gas flow guiding is preferable, and gas flow guiding influences whether that can airbag 4 be opened up completely within the defined time
Open.In addition, the outside of flexible outer tube 2 can also be further added by one layer of flexible pipe, produce more airflow direction and change, further
Resist high-temperature gas and particle impact.But the flexible pipe of multilayer is crossed, gas flow guiding may be influenceed.Therefore actual product
It in design, should ensure that airbag 4 can be deployed into the position of needs in a short period of time, ensure that airbag 4 can resist heat again
The temperature of air-flow and the impact of particulate.
In second of embodiment, as shown in figure 4, the central axis of flexible inner tube 1 and flexible outer tube 2 is mutually perpendicular to, interior gas
Hole 11 and outer stomata 21 still mutually stagger and keep certain fore-and-aft distance.Unlike, due to flexible outer tube 2 and flexible inner tube
It it is in 90 ° between 1, the left and right sides of flexible inner tube 1 blocks a part by flexible outer tube 2, is on the one hand advantageous to change air-flow
Direction, it on the other hand can stop more particulates.
It is preferred that the central axis of flexible inner tube 1 and flexible outer tube 2 can also be in other angles in the horizontal plane.
In the third embodiment, as shown in figure 5, flexible inner tube 1 and flexible outer tube 2 are made up of a piece of cross sheet material 5, ten
Font sheet material 5 includes two pieces of block length blocks 52 of short block 51 and two.Two pieces of short blocks 51 enclose to form flexible inner tube 1, and two block length blocks 52 enclose
Conjunction forms flexible outer tube 2.Short block 51 and long block 52 are rectangle.
It is preferred that as shown in figure 4, flexible inner tube 1 and flexible outer tube 2 can also be separated and be individually formed, reconnect
Together.Flexible outer tube 2 is set in outside flexible inner tube 1, and the bottom surface of flexible outer tube 2 is bonded with the bottom surface of flexible inner tube 1, flexible outer tube
2 bottom surface is further opened with the outer installing hole for installing gas generator 6（It is not shown）, outer installing hole and the weight of interior installing hole 12
Close.
In 4th kind of embodiment, as shown in fig. 6, unlike the third embodiment：Short block 51 is trapezoidal.
It is preferred that short block and long block can also be other shapes.
It is preferred that each plate on cross sheet material can be random length and shape, as long as every two on cross sheet material
The plate that block is located along the same line forms flexible inner tube 1 and flexible outer tube 2 respectively after enclosing so that flexible inner tube 1 is less than flexibility
Outer tube 2, belongs to protection scope of the present invention.
It is preferred that flexible inner tube 1 and flexible outer tube 2 are made up of coating fabric, it can be selected the dtex coated's of model 470
Coating fabric.
It is preferred that flexible inner tube 1 and flexible outer tube 2 can also use other materials flexible, density is higher.
It is preferred that the air bag in the present invention can also be the side air bag of installation on the seat.
Above-described is only the principle and preferred embodiment of the present invention.It should be pointed out that the common skill for this area
For art personnel, on the basis of the principle of the invention, some other modifications can also be made, also should be regarded as the protection model of the present invention
Enclose.
Claims (8)
1. a kind of gas distributor for air bag, the gas distributor inside the airbag of the air bag and with a gas
Generator is connected, and gas caused by the gas generator is filled with airbag by the gas distributor, the gas distribution
Device includes flexible inner tube and flexible outer tube, and the flexible outer tube is located at the periphery of the flexible inner tube, opened on the flexible inner tube
Provided with inner air vent, outer stomata is offered on the flexible outer tube, it is characterised in that the flexible inner tube is less than the flexible outer tube
So that the inner air vent separates with the outer stomata, gas is first into the gas after the gas generator is gone out
In the cavity of the flexible inner tube of distributor.
2. gas distributor according to claim 1, it is characterised in that in the flexible inner tube and the flexible outer tube
Mandrel line is parallel to each other, and the girth of the flexible inner tube is less than the girth of the flexible outer tube.
3. gas distributor according to claim 2, it is characterised in that the flexible inner tube and the flexible outer tube are in
The equal length of mandrel line.
4. gas distributor according to claim 1, it is characterised in that in the flexible inner tube and the flexible outer tube
Mandrel line is mutually perpendicular to.
5. gas distributor according to claim 4, it is characterised in that the flexible inner tube and the flexible outer tube are by one
Piece cross sheet material is made, and every two blocks of plates being located along the same line are formed described soft respectively after enclosing on the cross sheet material
Property inner tube and the flexible outer tube.
6. gas distributor according to claim 1, it is characterised in that the inner air vent and the outer stomata are mutually wrong
Open.
7. gas distributor according to claim 6, it is characterised in that the number of the inner air vent is more than the outer stomata
Number.
8. according to the gas distributor described in claim 1-7 any one, it is characterised in that the flexible inner tube and described soft
Property outer tube is made up of coating fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004901.3A CN103909897B (en) | 2013-01-07 | 2013-01-07 | A kind of gas distributor for air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004901.3A CN103909897B (en) | 2013-01-07 | 2013-01-07 | A kind of gas distributor for air bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103909897A CN103909897A (en) | 2014-07-09 |
| CN103909897B true CN103909897B (en) | 2017-11-21 |
Family
ID=51035993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310004901.3A Active CN103909897B (en) | 2013-01-07 | 2013-01-07 | A kind of gas distributor for air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103909897B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662714A (en) * | 2017-08-16 | 2018-02-06 | 北京航天长征飞行器研究所 | A kind of high-temperature fuel gas flexible diffusion device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321650A (en) * | 2005-12-01 | 2008-12-10 | 高田-彼得里公开股份有限公司 | Gas flow distributor for an airbag module |
| CN101326082A (en) * | 2005-03-02 | 2008-12-17 | 奥托立夫开发公司 | Tubular gas guide element, gas generation and feed unit and curtain airbag unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20105734U1 (en) * | 2001-04-02 | 2001-08-30 | Trw Repa Gmbh | Airbag module for a vehicle occupant restraint system |
| US7404572B2 (en) * | 2003-03-24 | 2008-07-29 | Key Safety Systems, Inc | Curtain air bag |
| DE202007015431U1 (en) * | 2007-10-30 | 2008-12-24 | Takata-Petri Ag | Airbag device for protecting a vehicle occupant |
| CN201325408Y (en) * | 2008-11-30 | 2009-10-14 | 锦州锦恒汽车安全系统有限公司 | Air guide tube for the air bag of a curtain type air chamber |
-
2013
- 2013-01-07 CN CN201310004901.3A patent/CN103909897B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326082A (en) * | 2005-03-02 | 2008-12-17 | 奥托立夫开发公司 | Tubular gas guide element, gas generation and feed unit and curtain airbag unit |
| CN101321650A (en) * | 2005-12-01 | 2008-12-10 | 高田-彼得里公开股份有限公司 | Gas flow distributor for an airbag module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103909897A (en) | 2014-07-09 |
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