WO2001012474A1 - Improvements in or relating to an air-bag arrangement - Google Patents

Improvements in or relating to an air-bag arrangement Download PDF

Info

Publication number
WO2001012474A1
WO2001012474A1 PCT/SE2000/001571 SE0001571W WO0112474A1 WO 2001012474 A1 WO2001012474 A1 WO 2001012474A1 SE 0001571 W SE0001571 W SE 0001571W WO 0112474 A1 WO0112474 A1 WO 0112474A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
bag
vehicle
windshield
occupant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SE2000/001571
Other languages
English (en)
French (fr)
Inventor
Dick Eriksson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Autoliv Development AB filed Critical Autoliv Development AB
Priority to US10/049,040 priority Critical patent/US6971670B1/en
Priority to DE10084884T priority patent/DE10084884T1/de
Priority to JP2001516786A priority patent/JP4677158B2/ja
Priority to AU66039/00A priority patent/AU6603900A/en
Publication of WO2001012474A1 publication Critical patent/WO2001012474A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/239—Inflatable members characterised by their venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory

Definitions

  • THE PRESENT INVENTION relates to an air-bag arrangement, and more particularly relates to an air-bag arrangement provided in a motor vehicle to give protection to an occupant of a front seat of the vehicle, such as the driver or a front seat passenger of the vehicle.
  • an air-bag arrangement in a motor vehicle, the air-bag arrangement incorporation an air-bag initially stored within a housing, and means adapted to inflate the air-bag, so that the air-bag, when inflated, occupies a position generally in front of an occupant of a front seat of the vehicle, and between the occupant of the front seat of the vehicle and the windscreen or windshield of the vehicle, the air-bag being provided with a first region adapted to contact or lie immediately adjacent the interior of the windshield when the air-bag is inflated, and a second region located between the first region and the housing, the first region being provided with gas outlet means adapted to eject gas, from the interior of the air-bag, under pressure, to points between the said first region of the air-bag and the inside surface of the windscreen or windshield.
  • the gas outlet means comprise a plurality of apertures in the air- bag providing a communication between the interior of the air-bag and the exterior of the air-bag.
  • FIGURE 1 is a diagrammatic side view illustrating an air-bag, following deployment thereof, at a position in front of a front seat passenger in a motor vehicle,
  • FIGURE 2 illustrates the passenger impacting with the air-bag
  • FIGURE 3 illustrates the situation that can arise with a prior art air-bag shortly after the occupant has impacted with the air-bag
  • FIGURE 4 is a perspective view of a motor vehicle provided with an air-bag in accordance with the invention, with the air-bag in the deployed state
  • FIGURE 5 is a view, corresponding to Figures 1 to 3, illustrating the situation that exists shortly after the occupant of the vehicle has impacted with the inflated air-bag of Figure 4.
  • FIG. 1 an interior part of a motor vehicle is illustrated.
  • a seat 1 such as the front seat, is provided, and a passenger 2 is located on the front seat. The passenger is retained in an initial position by a seat-belt 3.
  • the vehicle is provided with a dashboard 4 and a windscreen or windshield 5.
  • an air-bag 6, of a conventional design is illustrated, the air-bag having been deployed from the dashboard 4 of the vehicle, as is conventional.
  • the dashboard contains an air-bag housing in which the air-bag is stored before inflation.
  • the inflated air-bag 6 is thus located between the passenger 2 and the dashboard 4 of the vehicle.
  • the air-bag 6 is also located between the occupant 2 and the windscreen 5. It is normal that a section of the air-bag is resting against the windscreen 5.
  • Figure 1 thus illustrates the situation that exists shortly after a frontal impact has been detected, and the air-bag 6 has been deployed.
  • the vehicle will be decelerated, but the occupant 2 will continue to move forwardly, because of the inertia of the torso 7 and head 8 of the occupant.
  • the seat-belt 3 will stretch and the torso 7 will impact with the inflated air-bag 6 and the head 8 will also impact with the inflated air-bag 6. This is the situation shown in Figure 2.
  • the air-bag when this stage is reached, will be fully inflated.
  • the torso 7 of the occupant has a substantial momentum or inertia, and as the vehicle continues to decelerate, the torso 7 moves forwardly relative to the vehicle, compressing the inflated air-bag 6, moving the portion 10 of the air-bag which is at a position remote from the area 9 forwardly.
  • the load on the bag is increased and the pressure on the windscreen is increased thereby.
  • the head 8, of the occupant does not have such a great inertia, and the head 8 of the occupant engages an upper part 11 of the air-bag which is very close to the region which is held stationary because of the friction existing between the area 9 and the windshield 5.
  • the head 8 tends to be kept relatively stationary, whilst the torso 7 is permitted to move forwardly. This leads to a rearward flexing of the neck of the occupant 2 of the seat 1 , as can be seen in Figure 3. This is undesirable.
  • the air-bag 6 is provided, within the region 9, that is to say the region that is to be pressed against the windshield 5 on inflation of the air-bag 6, with a plurality of small apertures 12.
  • the small apertures 12 provide a communication between the interior of the air-bag and the exterior of the air-bag and thus permit the exit of gas from the interior of the air-bag.
  • the gas is directed towards the inner surface of the windshield 5 and is consequently injected between the surface of the air-bag and the inner surface of the windscreen or windshield 5. This tends to ensure that the air- bag 6 is biased away from the windshield 5.
  • the pressure in the bag is increased by the occupant moving into the bag more gas will be forced out through the apertures 12.
  • the effect is, in some respects, similar to that of "hovercraft".
  • the high pressure gas ejected from the air-bag between the air- bag and the windscreen or windshield tends to separate the air-bag from the windscreen or windshield which is illustrated by the space 14, thus at least reducing the friction between the airbag and the windscreen or windshield.
  • the area 9 of the air-bag 6 is spaced slightly from the windshield 5, there is no friction or grip between the air-bag 6 and the windshield 5.
  • the openings in the area 9 can be arranged asymmetrically for example by larger openings in the centre or by the openings 12 arranged closer to each other in selected areas.
  • the air-bag may be intended to protect the driver of the vehicle. In such a situation the air-bag would be initially mounted within the hub of the steering wheel of the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
PCT/SE2000/001571 1999-08-12 2000-08-11 Improvements in or relating to an air-bag arrangement Ceased WO2001012474A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/049,040 US6971670B1 (en) 1999-08-12 2000-08-11 Air-bag system for vehicles
DE10084884T DE10084884T1 (de) 1999-08-12 2000-08-11 Verbesserungen an oder in Bezug auf eine Gassack-Anordnung
JP2001516786A JP4677158B2 (ja) 1999-08-12 2000-08-11 エアバッグ機構における又は関する改良
AU66039/00A AU6603900A (en) 1999-08-12 2000-08-11 Improvements in or relating to an air-bag arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9919067.0 1999-08-12
GB9919067A GB2353008B (en) 1999-08-12 1999-08-12 Improvements in or relating to an air-bag arrangement

Publications (1)

Publication Number Publication Date
WO2001012474A1 true WO2001012474A1 (en) 2001-02-22

Family

ID=10859048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/001571 Ceased WO2001012474A1 (en) 1999-08-12 2000-08-11 Improvements in or relating to an air-bag arrangement

Country Status (6)

Country Link
US (1) US6971670B1 (https=)
JP (1) JP4677158B2 (https=)
AU (1) AU6603900A (https=)
DE (1) DE10084884T1 (https=)
GB (1) GB2353008B (https=)
WO (1) WO2001012474A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016011A1 (de) * 2005-04-07 2006-10-19 Trw Automotive Gmbh Fahrzeuginsassen-Rückhaltesystem und Verfahren zum Rückhalten eines Kraftfahrzeuginsassen

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049188B4 (de) * 2004-10-08 2012-01-26 Autoliv Development Ab Personenkraftwagen mit einem im Armaturenbrett angeordneten Gassackmodul und Beifahrer-Gassackmodul für einen Personenkraftwagen
JP2006298119A (ja) * 2005-04-19 2006-11-02 Takata Corp エアバッグ装置、乗員保護システム、車両
EP2008882B1 (en) * 2007-06-29 2010-01-20 Dalphi Metal Espana, S.A. Adaptive airbag with multi-venting
WO2012167908A1 (de) * 2011-06-08 2012-12-13 Trw Automotive Gmbh Fahrzeuginsassen-rückhaltesystem mit adaptivem kniegassack
JP6716957B2 (ja) * 2016-02-29 2020-07-01 Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 エアバッグ、エアバッグ装置及び自動車
US9643562B1 (en) 2016-05-05 2017-05-09 Autoliv Asp, Inc. Airbag with passive adaptive venting
US11021126B1 (en) * 2017-06-30 2021-06-01 Apple Inc. Windshield area intrusion control
DE102017124579A1 (de) * 2017-10-20 2019-04-25 Dalphi Metal Espana, S.A. Fahrzeuginsassen-rückhaltesystem mit einem gassack
JP6950565B2 (ja) * 2018-02-19 2021-10-13 トヨタ自動車株式会社 助手席エアバッグの揺動低減構造
JP7514951B2 (ja) * 2020-12-03 2024-07-11 オートリブ ディベロップメント エービー エアバッグ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758133A (en) * 1970-06-04 1973-09-11 Honda Motor Co Ltd Shock absorbing air bag apparatus in a motor car
EP0398028A1 (de) * 1989-05-17 1990-11-22 Daimler-Benz Aktiengesellschaft Sicherheitseinrichtung in Form eines Gaskissens für Kraftfahrzeuge
GB2261409A (en) * 1991-11-16 1993-05-19 Daimler Benz Ag A vehicle occupant restraining system
DE4235761A1 (de) * 1992-10-23 1994-04-28 Daimler Benz Ag Rückhaltesystem für Insassen von Kraftfahrzeugen

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US3481625A (en) * 1967-10-12 1969-12-02 Eaton Yale & Towne Safety method and apparatus
US3527475A (en) * 1969-03-07 1970-09-08 Eaton Yale & Towne Vehicle safety system
FR2114201A5 (https=) * 1970-11-19 1972-06-30 Peugeot & Renault
BE794296A (fr) * 1972-01-19 1973-07-19 Des Soc Nat Nouveau dispositif de securite a coussin gonflable, notamment pour vehicules uatomobiles
US4169613A (en) * 1978-03-06 1979-10-02 General Motors Corporation Occupant restraint cushion
DE3644554C1 (de) * 1986-12-24 1988-04-21 Daimler Benz Ag Gaskissen-Aufprallschutzvorrichtung fuer die Insassen eines Kraftfahrzeuges mit einem Filter zum Reinigen des Treibgases
JPH01317847A (ja) * 1988-06-17 1989-12-22 Takata Kk エアバック用シート及びエアバッグ
JPH0534463Y2 (https=) * 1988-09-06 1993-08-31
JPH0642925Y2 (ja) * 1989-03-06 1994-11-09 本田技研工業株式会社 乗員拘束用エアバッグ装置
JPH0352265U (https=) * 1989-09-29 1991-05-21
US5007662A (en) * 1989-10-16 1991-04-16 Ford Motor Company Air bag relief valve
DE4223775C1 (https=) * 1992-07-18 1993-06-24 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
JPH06199196A (ja) * 1992-10-30 1994-07-19 Takata Kk エアバッグ
US5542695A (en) * 1993-12-28 1996-08-06 R. Stresau Laboratory, Inc. Air bag deployment system
US5492363A (en) * 1994-09-07 1996-02-20 Takata, Inc. Flow regulating air bag valve
JPH08108816A (ja) * 1994-10-07 1996-04-30 Isuzu Motors Ltd エアバッグ装置
JPH08164813A (ja) * 1994-12-14 1996-06-25 Fuji Heavy Ind Ltd 助手席用エアバッグ装置
JPH08225054A (ja) * 1995-02-20 1996-09-03 Ikeda Bussan Co Ltd 車両の側突用エアバッグ装置
US5704639A (en) * 1996-07-09 1998-01-06 Breed Automotive Technology, Inc. Pressure sensitive airbag vent mechanism
DE29612502U1 (de) * 1996-07-18 1996-11-14 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Gassack für ein Fahrzeuginsassen-Rückhaltesystem
JPH10338096A (ja) * 1997-06-10 1998-12-22 Takata Kk 助手席用エアバッグ装置
JPH1142995A (ja) * 1997-07-28 1999-02-16 Aichi Mach Ind Co Ltd 助手席用エアバッグ装置
JP3340354B2 (ja) * 1997-08-04 2002-11-05 日本プラスト株式会社 エアバッグ
JP4129758B2 (ja) * 1998-08-10 2008-08-06 俊毅 内田 エアバッグ装置
JP2000313303A (ja) * 1999-04-28 2000-11-14 Nippon Plast Co Ltd エアバッグ及びエアバッグ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758133A (en) * 1970-06-04 1973-09-11 Honda Motor Co Ltd Shock absorbing air bag apparatus in a motor car
EP0398028A1 (de) * 1989-05-17 1990-11-22 Daimler-Benz Aktiengesellschaft Sicherheitseinrichtung in Form eines Gaskissens für Kraftfahrzeuge
GB2261409A (en) * 1991-11-16 1993-05-19 Daimler Benz Ag A vehicle occupant restraining system
DE4235761A1 (de) * 1992-10-23 1994-04-28 Daimler Benz Ag Rückhaltesystem für Insassen von Kraftfahrzeugen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016011A1 (de) * 2005-04-07 2006-10-19 Trw Automotive Gmbh Fahrzeuginsassen-Rückhaltesystem und Verfahren zum Rückhalten eines Kraftfahrzeuginsassen
DE102005016011B4 (de) * 2005-04-07 2007-09-20 Trw Automotive Gmbh Fahrzeuginsassen-Rückhaltesystem

Also Published As

Publication number Publication date
JP4677158B2 (ja) 2011-04-27
DE10084884T1 (de) 2002-09-12
AU6603900A (en) 2001-03-13
GB2353008A (en) 2001-02-14
GB2353008B (en) 2003-01-22
GB9919067D0 (en) 1999-10-13
US6971670B1 (en) 2005-12-06
JP2003507233A (ja) 2003-02-25

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