EP1569824A1 - Sac a gaz d'un dispositif de protection contre les chocs lateraux - Google Patents

Sac a gaz d'un dispositif de protection contre les chocs lateraux

Info

Publication number
EP1569824A1
EP1569824A1 EP03773666A EP03773666A EP1569824A1 EP 1569824 A1 EP1569824 A1 EP 1569824A1 EP 03773666 A EP03773666 A EP 03773666A EP 03773666 A EP03773666 A EP 03773666A EP 1569824 A1 EP1569824 A1 EP 1569824A1
Authority
EP
European Patent Office
Prior art keywords
gas bag
overflow
chamber
airbag
gas
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.)
Withdrawn
Application number
EP03773666A
Other languages
German (de)
English (en)
Inventor
Helge HÜBNER
Manfred Müller
Ulrich Tschäschke
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1569824A1 publication Critical patent/EP1569824A1/fr
Withdrawn legal-status Critical Current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
    • B60R21/239—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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • 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
    • B60R2021/0002—Type of accident
    • B60R2021/0018—Roll-over
    • 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
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • B60R2021/23316—Inner seams, e.g. creating separate compartments or used as tethering means

Definitions

  • the invention relates to an airbag for a side impact protection device according to claim 1.
  • the gas bag which is still filled, can represent a hindrance in rescuing an occupant.
  • the present invention has for its object to provide an airbag for a side impact protection device, in which the airbag is filled protectively over a longer period of time, but which does not represent an obstacle to an occupant rescue.
  • the gas bag according to the invention for a side impact protection device is characterized in that, in addition to a protective chamber which serves to catch a vehicle occupant, there is an additional chamber in which an outflow opening is provided.
  • the protective chamber and overflow chamber are connected to one another via an overflow line.
  • the gas bag according to the invention has the advantage that the outflow of the gas in the gas bag is delayed by the arrangement according to the invention.
  • the gas is first led into the protective chambers, which gives the gas bag its protective effect.
  • the gas then flows via the overflow line into the overflow chamber, where it leaves the gas bag via the outflow opening.
  • the gas flows out of the protective chamber faster or slower.
  • the time in which the gas bag is filled in a functional manner can be set very easily via the outflow speed of the gas.
  • an airbag for a side impact protection device can thus be made available which is filled with protection for a longer period, for example for the period of a vehicle rollover, and at the same time is vented again for occupant rescue.
  • the gas bag can consist of a coated or laminated fabric.
  • a coated or laminated fabric has the advantage that the gas in the gas bag cannot escape through the fabric. This supports that the gas bag remains filled with protection over a longer period of time.
  • Gas generators can be used to fill the gas bag, the gas of which cools only slightly when relaxing. The fact that the gas initially maintains its temperature ensures that the pressure in the gas bag is as constant as possible over a longer period of time.
  • the gas bag according to the invention has several overflow chambers. These can be arranged in positions apart from one another in the gas bag, so that a uniform outflow is ensured in all areas of the gas bag.
  • overflow lines can lead to an overflow chamber. If these overflow lines are connected to different protective chamber areas, this arrangement also supports a uniform outflow of the gas located in the gas bag. This ensures that the gas bag for occupant rescue is vented again.
  • the outflow speed can also be adjusted by coordinating the size of the overflow line and the size of the outflow opening.
  • a possible example of a ratio of the size of the cross section of the power line to the size of the outflow opening is 1: 1.
  • Fig. 1 is a side view of an airbag according to the invention with two overflow chambers and
  • Fig. 2 is a detailed view of the gas bag according to the invention shown in Fig. 1.
  • the gas bag 1 shows an airbag 1 for a side impact protection device.
  • the gas bag 1 is a so-called windowbag, which unfolds in front of the side windows in the event of a collision in a vehicle and thus represents an impact protector for the shoulder and head region for vehicle occupants.
  • the gas bag 1 is characterized by different areas. Areas are provided, so-called protective chambers 2, which are filled with gas. On the other hand, the gas bag has areas 3 into which no gas can flow during filling.
  • the protective chambers 2 are arranged where the likelihood of contact with a body part of a vehicle occupant is greatest.
  • the gas bag 1 has overflow chambers 4 in addition to the protective chambers 2 and the non-filled areas 3.
  • the overflow chamber 4 is connected to the protective chambers 2 via two overflow lines 5. It has an outflow opening 6.
  • the overflow chamber 4 is arranged in the unfilled area 3. This unfilled area 3 can either be sewn or woven.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un sac à gaz (1) destiné à un dispositif de protection contre les chocs latéraux et comprenant au moins une chambre de protection (2) qui, lorsqu'elle est remplie, permet de recevoir un passager du véhicule. La présente invention vise à créer, pour un dispositif de protection contre les chocs latéraux, un sac à gaz (1) qui lorsqu'il est rempli, est apte à la protection pendant une longue période sans pour autant constituer un obstacle lors du sauvetage du passager. A cet effet, le sac à gaz (1) comprend une chambre de trop-plein (4) dotée d'un orifice d'écoulement (6), cette chambre de trop-plein (4) étant reliée à la chambre de protection (2) par un conduit de trop-plein (5).
EP03773666A 2002-12-11 2003-10-25 Sac a gaz d'un dispositif de protection contre les chocs lateraux Withdrawn EP1569824A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10257790 2002-12-11
DE10257790A DE10257790B3 (de) 2002-12-11 2002-12-11 Gassack für eine Seitenaufprallschutzeinrichtung
PCT/EP2003/011865 WO2004052692A1 (fr) 2002-12-11 2003-10-25 Sac a gaz d'un dispositif de protection contre les chocs lateraux

Publications (1)

Publication Number Publication Date
EP1569824A1 true EP1569824A1 (fr) 2005-09-07

Family

ID=30775623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03773666A Withdrawn EP1569824A1 (fr) 2002-12-11 2003-10-25 Sac a gaz d'un dispositif de protection contre les chocs lateraux

Country Status (5)

Country Link
US (1) US20060249941A1 (fr)
EP (1) EP1569824A1 (fr)
JP (1) JP2006509672A (fr)
DE (1) DE10257790B3 (fr)
WO (1) WO2004052692A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005006634A1 (de) * 2005-02-10 2006-08-24 Takata-Petri (Ulm) Gmbh Airbag für eine Insassenschutzeinrichtung
JP5169203B2 (ja) * 2007-12-20 2013-03-27 豊田合成株式会社 エアバッグ装置
US8474866B1 (en) * 2012-03-08 2013-07-02 Toyota Motor Engineering & Manufacturing North America, Inc. Airbag with zones of less elastic material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556128A (en) * 1994-11-24 1996-09-17 Volkswagen Ag Safety arrangement for a vehicle occupant
US5697641A (en) * 1996-05-14 1997-12-16 Trw Vehicle Safety Systems Inc. Inflatable vehicle occupant protection device and method of inflating the device
US6042141A (en) * 1997-08-26 2000-03-28 General Motors Corporation Side restraint assembly
DE29801051U1 (de) * 1998-01-22 1998-05-20 Trw Repa Gmbh Gassack für eine Seitenaufprall-Schutzeinrichtung
DE19824601C2 (de) * 1998-06-02 2003-04-03 Breed Automotive Tech Luftsack mit Ausgleichsvolumen
US6213499B1 (en) * 1998-08-03 2001-04-10 Delphi Technologies, Inc. Side air bag system
DE29907622U1 (de) * 1999-04-29 1999-09-23 Trw Repa Gmbh Seitengassack-Rückhaltesystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004052692A1 *

Also Published As

Publication number Publication date
DE10257790B3 (de) 2004-02-26
JP2006509672A (ja) 2006-03-23
WO2004052692A1 (fr) 2004-06-24
US20060249941A1 (en) 2006-11-09

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