CN100439158C - Air bag - Google Patents
Air bag Download PDFInfo
- Publication number
- CN100439158C CN100439158C CNB031035973A CN03103597A CN100439158C CN 100439158 C CN100439158 C CN 100439158C CN B031035973 A CNB031035973 A CN B031035973A CN 03103597 A CN03103597 A CN 03103597A CN 100439158 C CN100439158 C CN 100439158C
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- chamber
- air bag
- panel
- dividing plate
- gas
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Abstract
The present invention aims to provide a gas bag which permits all chambers to be simultaneously inflated basically, and thereby, the time required for the gas bag to inflate is reduced. The interior of the gas bag (10) is divided into a first chamber (1) positioned in the center, a second chamber (2) around the first chamber (1) and a gas receiving cavity (3) by an inner plate (22) and a separator plate (13), wherein the first chamber (1) is positioned in the inner plate (22) and is simultaneously positioned at the outside and the upper part of the separator plate (13). The gas receiving cavity (3) is positioned in the inner plate (22) and is simultaneously positioned between the separator plate (13) and an inflator (36). Once the inflator (36) starts to run, the gas is ejected into the gas bag (10). The gas bag (10) is inflated by the gas, and a moulding cover (48) is forced to open. Then, the gas bag (10) is expanded in a car and protects an occupant on a steering chair, wherein the gas coming from the inflator (36) firstly flows into the gas receiving cavity (3), and the gas simultaneously flows into the first chamber (1) and the second chamber (2) via communicating ports (13a), (27) from the gas receiving cavity (3), and thereby, the first chamber (1) and the second chamber (2) are simultaneously inflated basically.
Description
Technical field
The present invention relates to a kind of being used for by when emergency situation takes place, thus for example when the high-speed moving object such as automobile bumps rapid expanding protect the air bag of human body.
Background technology
For protection automobile passenger when the emergency situation that takes place such as auto against, used various airbag apparatus, for example be used in the airbag apparatus of driver's seat.The airbag apparatus that is used in driver's seat has an air bag, and being stitched together by the outer edge part with the rear panel on the opposite side of the outer edge part of the front panel on the occupant side and occupant side forms.Be used for being arranged on the central authorities of rear panel, be used to admit the front end of charging blower with charging blower ingear opening.The periphery of this opening utilizes bolt, pin and rivet etc. to be fixed in fixer.Rear panel has deflation hole and is used for making when the occupant on the driver's seat pours in the air bag gas of air bag to discharge to absorb impact.
Publication number is that the Japanese Unexamined Patent Application of 1-247242 has disclosed a kind of air bag, wherein be provided with an inner panel with as opening that is used for charging blower on the rear panel and the bridger between the front panel, and this air bag inside is separated into first chamber that is positioned at air bag central authorities and around second chamber of first chamber.This inner panel is seen basic for circular from planar view, and its outer periphery partly is connected in the central authorities of front panel and the centre portion between the outward flange.The opening that is used for charging blower is arranged on inner panel central authorities, and the marginal portion of this opening and rear panel are fixed in fixer together.Inner panel has connected entrance and is communicated with to allow first chamber and second chamber.In case charging blower brings into operation, first chamber at first is inflated, and second chamber is inflated then.Inflation in second chamber is finished is later than first chamber, because gas flows into second chamber from first chamber by connected entrance.
Technical matters
One object of the present invention is to finish simultaneously basically first chamber in the air bag and the inflation of second chamber, and wherein this air bag inner utilization inner panel is separated into first chamber and second chamber.
Technical scheme
Its inside of the air bag of (claim 1) is separated into a plurality of chambers according to the present invention, and by gas inflated from charging blower, it is characterized in that, comprise that a gas reception cavity is used for from the charging blower receiver gases, and connected entrance is used for from the gas reception cavity directly to each chamber supply gas.
In this air bag, along with gas brings into operation, gas at first imports the gas reception cavity from charging blower, and (for example directly is assigned to each chamber from the gas reception cavity via connected entrance, first chamber and second chamber), thereby basically simultaneously to all chamber inflations.
(claim 2) according to an aspect of the present invention, this air bag comprise front panel that is positioned on the occupant side and the rear panel that is positioned on occupant's opposition side, and front panel and rear panel interconnect in their outer edge part.In this air bag, the opening that is used for charging blower is arranged on the central authorities of rear panel; Be provided with inner panel, it is separated into first chamber of central authorities and second chamber that centers on first chamber with air bag inside; Basically the opening concentric openings with rear panel is arranged on inner panel central authorities; The outer edge part of inner panel is connected in the middle body of front panel and the centre portion between the outer edge part; Thereby separate first chamber interior forms the gas reception cavity on opening one side that is used for charging blower dividing plate and be connected in inner panel; The connected entrance that makes the gas reception cavity be communicated in first chamber is arranged on the dividing plate; And the connected entrance that makes the gas reception cavity be communicated in second chamber is arranged on the inner panel.
In this air bag, because front panel is connected in the marginal portion of the opening that is used for charging blower by inner panel, thereby front panel and the connection that is used between the opening of charging blower are quite firm.
(claim 3) according to another aspect of the present invention, this air bag comprise front panel that is positioned on the occupant side and the rear panel that is positioned on occupant's opposition side, and front panel and rear panel interconnect in their outer edge part.In this air bag, the opening that is used for charging blower is arranged on the central authorities of rear panel; Be provided with inner panel, it is separated into first chamber that is positioned at air bag central authorities and second chamber that centers on first chamber with air bag inside; Be provided with at inner panel and be used for forming between the opening of charging blower the dividing plate of gas reception cavity; Basically the opening concentric openings with rear panel is arranged on dividing plate central authorities; The outer edge part of dividing plate is connected in the middle body of inner panel and the centre portion between the outer edge part; The connected entrance that makes the chamber of winning be communicated in the gas reception cavity is arranged on the inner panel; And the connected entrance that makes the gas reception cavity be communicated in second chamber is arranged on the dividing plate.
Even in this air bag,, also front panel can be firmly attached to the marginal portion of the opening that is used for charging blower on the rear panel by strengthening the connection between dividing plate and the inner panel.
(claim 4) according to a further aspect of the invention, this air bag comprise front panel that is positioned on the occupant side and the rear panel that is positioned on occupant's opposition side, and front panel and rear panel interconnect in their outer edge part.In this air bag, the opening that is used for charging blower is arranged on the central authorities of rear panel; Be provided with inner panel, it is separated into first chamber that is positioned at air bag central authorities and second chamber that centers on first chamber with air bag inside; Be provided with cylindrical dividing plate, its inside is formed with aforesaid gas reception cavity, and dividing plate has the opening with the opening essentially concentric of rear panel; The outer edge part of inner panel is connected in front panel, and the middle body of inner panel is connected in dividing plate; The connected entrance that makes the chamber of winning be communicated in the gas reception cavity is arranged on each inner panel and the dividing plate; And the end of cylindrical dividing plate is configured for making the gas reception cavity to be communicated in the connected entrance of second chamber.
In this air bag, gas can be ejected into second chamber along cylindrical bearing of trend from cylindrical dividing plate, thereby allows second chamber fast aeration on the radial direction that air bag increases gradually.
In the air bag aspect these, structure can be that deflation hole is arranged in the plate of back, and the exhaust gas inside hole that is used to make first chamber be communicated in second chamber is arranged in the above-mentioned inner panel.In the time of in the occupant pours first chamber, the gas in first chamber is gone into second chamber by the exhaust gas inside orifice flow, and gas flows out from deflation hole then, impacts thereby absorb.
Description of drawings
Fig. 1 is a section drawing, and the airbag apparatus that is equipped with the described air bag of one embodiment of the invention is shown.
Fig. 2 is a decomposition diagram, and airbag apparatus as shown in Figure 1 is shown.
Fig. 3 (a) illustrates other embodiment of inner panel of the present invention to 3 (d).
Fig. 4 is a section drawing, and air bag according to another embodiment of the invention is shown.
Fig. 5 is a section drawing, and air bag according to still another embodiment of the invention is shown.
Label
1: the first chamber
2: the second chambers
10: the air bag that is used in driver's seat
12: front panel
13,13 ', 13 ", 13A, 13B, 13C and 13D: dividing plate
14: rear panel
16: the opening that is used for charging blower
18: deflation hole
22,22 ', 22 ", 22A, 22B and 22C: inner panel
24: opening
27,50,51,52 and 53: connected entrance
28: the exhaust gas inside hole
30: fixer
32: the charging blower mounting hole
36: charging blower
42: set collar
The specific embodiment
Embodiments of the invention are described below with reference to accompanying drawings.
Fig. 1 is a section drawing, illustrates to be equipped with the described airbag apparatus that is used in the air bag of driver's seat of one embodiment of the invention, and wherein air bag is in inflated condition.Fig. 2 is a decomposition diagram, and air bag and airbag apparatus are shown.
Air bag 10 has a front panel 12, a rear panel 14 and an inner panel 22, they each all be by circle weave cotton cloth (woven circular cloth) make, and comprise the dividing plate 13 that is connected in inner panel 22.Front panel 12 has identical diameter with rear panel 14, and by its outer periphery is partly united by a seam and the shape pouch.Sutured portion is enclosed and looping around one by the neighboring along front panel 12 and rear panel 14.
In the air bag 10, provide inner panel 22.Basic and front panel 12 of inner panel 22 and rear panel 14 are provided with one heart, and its outer peripheral portion branch is sewn onto the middle body of front panel 12 and the centre portion between the outer edge part.Label 22 ' is represented this sutured portion (lignilite).Lignilite 22 ' has tubular shape.
In the central authorities of inner panel 22, be provided with substantially the opening that be used for charging blower 24 concentric with the opening 16 that is used for charging blower.These openings 16 and 24 have essentially identical diameter.The bolt hole 26 that is positioned at the rear panel 14 of bolt hole 20 tops centers on opening 24 settings of inner panel 22.
The neighboring part of the opening that is used for charging blower 24 on the inner panel 22 is superimposed upon the neighboring part of the opening that is used for charging blower 16 on the rear panel 14, and further is superimposed upon on the neighboring part of charging blower construction opening 32 of fixer 30.Be used for the opening 24 of charging blower and 16 neighboring part and be fixed in fixer 30 by bolt hole 26 and 20 respectively.Thereby the neighboring part of the opening that is used for charging blower 24 on the inner panel 22 is connected in the neighboring part of the opening that is used for charging blower 16 on the rear panel 14, and the neighboring part of inner panel 22 is connected in front panel 12 by sutured portion 22 '.
By these inner panels 22 and dividing plate 13, the inside of air bag 10 is separated into first chamber 1 that is positioned at central authorities, second chamber 2 and the gas reception cavity 3 that centers on first chamber 1.It is inner and simultaneously in dividing plate 13 outsides (top) that first chamber 1 is positioned at inner panel 22.Gas reception cavity 3 is in inner panel 22 inside and simultaneously between dividing plate 13 and charging blower 36.Here, it is the criss cross shape that dividing plate 13 has basic, but its shape is not limited to criss-cross.
In this embodiment, each of two of the relative extension of cross partition 13 all has connected entrance 13a therein, and all the other two above connected entrance 27.One of each connected entrance 13a and exhaust gas inside hole 28 out-phase mutually on respect to the neighboring direction of the central authorities of air bag.
Eta patches etc. can be fixed in the neighboring part in each opening 16 and 24, connected entrance 27 and exhaust gas inside hole 28.
The fixer 30 that is used to install air bag 10 has and is positioned at its central charging blower construction opening 32, and has the bolt hole 34 that is positioned at around it.
The flange 38 of charging blower 36 has bolt hole 40.Charging blower 36 is assemblied in the charging blower construction opening 32 of fixer 30.
In the time air bag 10 will being fixed in fixer 30, opening that is used for charging blower 16 on rear panel 14 and the inner panel 22 and 24 neighboring part utilize set collar 42 to be pressed against the neighboring part of the charging blower construction opening 32 of fixer.
In this case, the thru-bolt 44 of set collar 42 passes bolt hole 26,20,34 and 40, and each thru-bolt fixed at front end by nut 46, thereby inner panel 22, air bag 10 and charging blower 36 are fixed in fixer 30.Then, air bag 10 is folded, and moulded closure 48 is fixed in fixer 30 so that cover the folded formation of air bag 10, thereby constitutes airbag apparatus.This airbag apparatus is installed in automobile steering wheel (not shown) place.
When vehicle collision took place, charging blower 36 brought into operation, and gas is ejected in the air bag 10.Air bag 10 is by gas inflated and force moulded closure 48 to be opened.Then, air bag 10 launches and protects occupant on the driver's seat in the compartment.Wherein, from the gas of charging blower 36 inflow gas reception cavity 3 at first, and from this gas reception cavity 3, gas flows into first chamber 1 and second chamber 2 basically simultaneously via connected entrance 13a and 27, thereby simultaneously first chamber 1 and second chamber 2 is put on the air basically.
In the time of in the air bag 10 after the occupant pours inflation, internal gas flows out by deflation hole 18 or exhaust gas inside hole 28, impacts thereby absorb.
In the present invention, as mentioned below, can use the inner panel and the dividing plate that are illustrated in Fig. 3 (a) to 3 (d).
In Fig. 3 (a), inner panel 22A has a connected entrance 27, and cross partition 13A has three connected entrance 13a.Connected entrance 13a is arranged on three of the cross partition 13A, and its all the other a slices are above connected entrance 27.
In Fig. 3 (b) and 3 (c), inner panel 22B has a connected entrance 27, and each all has two connected entrance 13a by three dividing plate 13B that constitute and 13C.Connected entrance 13a is arranged on each dividing plate 13B and 13C two, and all the other a slices of each dividing plate 13B and 13C are above connected entrance 27.Here, the dividing plate 13B among Fig. 3 (b) has T shape shape, and its connected entrance 13a is arranged on its two of extending along relative direction.In Fig. 3 (c), dividing plate 13C constitutes by three, and the direction of the position of basic trisection this circumference of these three edges on the circumference of inner panel 22C is extended.
In Fig. 3 (d), inner panel 22D has a connected entrance 27, and rectangular clapboard 13D has a connected entrance 13a.Connected entrance 13a and connected entrance 27 are arranged on opposite side, have the opening 24 that is used for charging blower therebetween.
Figure 4 and 5 are section drawings, and air bag according to other embodiments of the invention is shown, and wherein air bag is in inflated condition.
In air bag as shown in Figure 4, dividing plate 13 ' is arranged between inner panel 22 ' and the charging blower 36.The outer periphery end of dividing plate 13 ' is connected in the central authorities of inner panel 22 ' and the centre portion between the outward flange (still, being connected in than exhaust gas inside hole 28 more towards the position of center side).The interior periphery end of dividing plate 13 ' utilizes set collar 42 to be connected in rear panel 14 and fixer 30 (not shown among Fig. 4).
From the gas of charging blower 36 near the middle body that is arranged on inner panel 22 ' and the gas reception cavity 3 between the dividing plate 13 ' flow directly into first and second chambers 1 and 2 via connected entrance 50 and 51, thereby simultaneously first and second chambers 1 and 2 are put on the air basically.
In air bag as shown in Figure 5, cylindrical dividing plate 13 " be arranged on inner panel 22 " middle body near and between the charging blower 36.Dividing plate 13 " be arranged as its cylinder axis direction along fixer 30 (not shown among Fig. 5).Dividing plate 13 " have the opening that is used for charging blower that is arranged on its bottom surface side, and the outer edge part that is used for the opening of charging blower utilizes set collar 42 to be connected in fixer 30 and rear panel 14.Cylindrical dividing plate 13 " inside constitute gas reception cavity 3, and its two ends form connected entrance 53.
Dividing plate 13 " upper face side be connected in inner panel 22 " middle body near.Dividing plate 13 " and inner panel 22 " have connected entrance 52 and be used for allowing gas and inner panel 22 in the gas reception cavity 3 " first chamber 1 be communicated with.
In case charging blower 36 brings into operation, gas flows directly into first and second chambers 1 and 2 from connected entrance 52 and 53 through gas reception cavity 3, thereby simultaneously first and second chambers 1 and 2 is put on the air basically.
Dividing plate according to the foregoing description is sewn onto inner panel at its whole periphery.But dividing plate also can be arranged as part around it and not sew up and reserve opening, thereby connected entrance is not set on dividing plate.In this case, in case from the gas inflow gas reception cavity of charging blower, then the above-mentioned opening that forms from the not sutured portion by dividing plate then and the connected entrance 27 of inner panel flow into first and second chambers.
Advantage
As mentioned above, according to the present invention, section is separated into the air bag of a plurality of chambers by inner panel within it In, directly be fed to each chamber from the gas reception cavity from the gas of inflator, therefore, institute There is chamber basically to finish simultaneously its inflation, thereby reduces to finish airbag aeration when needed Between.
Claims (5)
1. air bag, its inside is separated into a plurality of chambers, and by the gas inflated from charging blower, comprising:
Inner panel, this inner panel are separated into first chamber that is positioned at described air bag central authorities with the inside of described air bag and around second chamber of this first chamber, and first chamber and second chamber be as described a plurality of chambers,
The gas reception cavity is used for from described charging blower receiver gases, and charging blower one side of first chamber is separated and be arranged on to the described gas reception cavity and first chamber; And
Connected entrance is used for directly distinguishing supply gas from described gas reception cavity to described each chamber.
2. air bag as claimed in claim 1 is characterized in that:
Described air bag comprises front panel that is positioned on the occupant side and the rear panel that is positioned on occupant's opposition side, and described front panel and described rear panel interconnect in their outer edge part;
The opening that is used for charging blower is arranged on the central authorities of described rear panel;
Basically be arranged on described inner panel central authorities with the opening concentric openings of described rear panel;
The outer edge part of described inner panel is connected in the middle body of described front panel and the centre portion between the outer edge part;
Thereby separate described first chamber interior and be connected in described inner panel at the dividing plate that is used for the described gas reception cavity of formation on described opening one side of charging blower;
The connected entrance that allows described gas reception cavity to be communicated in described first chamber is arranged on the described dividing plate; And
The connected entrance that allows described gas reception cavity to be communicated in described second chamber is arranged on the described inner panel.
3. air bag as claimed in claim 1 is characterized in that:
Described air bag comprises front panel that is positioned on the occupant side and the rear panel that is positioned on occupant's opposition side, and described front panel and described rear panel interconnect in their outer edge part;
The opening that is used for charging blower is arranged on the central authorities of described rear panel;
Be provided with at described inner panel and be used for forming between the described opening of charging blower the dividing plate of described gas reception cavity;
Basically be arranged on described dividing plate central authorities with the opening concentric openings of described rear panel;
The outer edge part of described dividing plate is connected in the middle body of described inner panel and the centre portion between the outer edge part;
The connected entrance that allows described first chamber to be communicated in described gas reception cavity is arranged on the described inner panel; And
The connected entrance that allows described gas reception cavity to be communicated in described second chamber is arranged on the described dividing plate.
4. air bag as claimed in claim 1 is characterized in that:
Described air bag comprises front panel that is positioned on the occupant side and the rear panel that is positioned on occupant's opposition side, and described front panel and described rear panel interconnect in their outer edge part;
The opening that is used for charging blower is arranged on the central authorities of described rear panel;
Be provided with cylindrical dividing plate in described air bag, its inside is configured as described gas reception cavity, and described dividing plate has the opening with the opening essentially concentric of described rear panel;
The outer edge part of described inner panel is connected in described front panel, and the middle body of described inner panel is connected in described dividing plate;
The connected entrance that allows described first chamber to be communicated in described gas reception cavity is arranged on each described inner panel and the described dividing plate; And
The end of described cylindrical dividing plate is configured for making described gas reception cavity to be communicated in the connected entrance of described second chamber.
5. as each described air bag of claim 2 to 4, it is characterized in that:
Deflation hole is arranged in the plate of described back, and the exhaust gas inside hole that is used to make described first chamber be communicated in described second chamber is arranged in the described inner panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031035973A CN100439158C (en) | 2003-01-29 | 2003-01-29 | Air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031035973A CN100439158C (en) | 2003-01-29 | 2003-01-29 | Air bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1521061A CN1521061A (en) | 2004-08-18 |
| CN100439158C true CN100439158C (en) | 2008-12-03 |
Family
ID=34282050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031035973A Expired - Fee Related CN100439158C (en) | 2003-01-29 | 2003-01-29 | Air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100439158C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4687105B2 (en) * | 2004-12-28 | 2011-05-25 | タカタ株式会社 | Airbag device |
| DE602006001275D1 (en) * | 2005-08-24 | 2008-07-03 | Takata Corp | Airbag and airbag device |
| KR101000260B1 (en) * | 2007-12-13 | 2010-12-10 | 현대자동차주식회사 | Structure of Airbag Cushion with Multi Chamber |
| JP5017141B2 (en) * | 2008-02-21 | 2012-09-05 | 日本プラスト株式会社 | Curtain airbag and manufacturing method thereof |
| KR101460726B1 (en) * | 2013-07-03 | 2014-11-12 | 현대모비스 주식회사 | An airbag of a vehicle |
| KR101756005B1 (en) * | 2016-04-04 | 2017-07-20 | 현대자동차주식회사 | Front airbag for vehicle and method for controlling the same |
| US10155496B2 (en) * | 2016-12-09 | 2018-12-18 | Ford Global Technologies, Llc | Airbag with side chambers |
| CN109204218B (en) * | 2018-09-28 | 2024-02-27 | 上海东方久乐汽车安全气囊有限公司 | Child seat safety airbag and child seat provided with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03136945A (en) * | 1989-10-24 | 1991-06-11 | Ikeda Bussan Co Ltd | Air bag device |
| WO2000003898A1 (en) * | 1998-07-14 | 2000-01-27 | Bayerische Motoren Werke Aktiengesellschaft | An airbag |
| US6059312A (en) * | 1998-10-16 | 2000-05-09 | Breed Automotive Technology, Inc. | Dual chamber airbag |
| US6439605B2 (en) * | 1999-12-08 | 2002-08-27 | Takata Corporation | Air bag and air bag device |
| JP2002308039A (en) * | 2001-04-13 | 2002-10-23 | Takata Corp | Air bag |
-
2003
- 2003-01-29 CN CNB031035973A patent/CN100439158C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03136945A (en) * | 1989-10-24 | 1991-06-11 | Ikeda Bussan Co Ltd | Air bag device |
| WO2000003898A1 (en) * | 1998-07-14 | 2000-01-27 | Bayerische Motoren Werke Aktiengesellschaft | An airbag |
| US6059312A (en) * | 1998-10-16 | 2000-05-09 | Breed Automotive Technology, Inc. | Dual chamber airbag |
| US6439605B2 (en) * | 1999-12-08 | 2002-08-27 | Takata Corporation | Air bag and air bag device |
| JP2002308039A (en) * | 2001-04-13 | 2002-10-23 | Takata Corp | Air bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1521061A (en) | 2004-08-18 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20140129 |