US20010017459A1 - Vehicle occupant restraint system - Google Patents
Vehicle occupant restraint system Download PDFInfo
- Publication number
- US20010017459A1 US20010017459A1 US09/772,836 US77283601A US2001017459A1 US 20010017459 A1 US20010017459 A1 US 20010017459A1 US 77283601 A US77283601 A US 77283601A US 2001017459 A1 US2001017459 A1 US 2001017459A1
- Authority
- US
- United States
- Prior art keywords
- gas bag
- restraint system
- occupant restraint
- vehicle occupant
- distributor pipe
- 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.)
- Granted
Links
Images
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
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
-
- 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
- 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
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23386—External tether 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
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
- B60R2021/2612—Gas guiding means, e.g. ducts
- B60R2021/2617—Curtain bag nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/18—Anchoring devices
- B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
- B60R22/1952—Transmission of tensioning power by cable; Return motion locking means therefor
Abstract
The invention relates to a vehicle occupant restraint system comprising an inflatable gas bag, a gas-carrying distributor pipe projecting into the gas bag and a piston housed displaceably in the distributor pipe. The restraint system further comprises a power transmission means which connects the piston and the gas bag with each other and via which a force for tensioning the gas bag is transferred onto said gas bag. A deflection member for the power transmission means is provided in the distributor pipe. The power transmission means is constructed as a traction means.
Description
- The invention relates to a vehicle occupant restraint system.
- An occupant restraint system known from DE 298 06 200 comprises a piston housed in the distributor pipe, which piston is displaced by the gas generator which also serves for inflating the gas bag. A rod mounted to the piston projects out from the distributor pipe and in the case of restraint is pressed out from the distributor pipe still further, whereby a gas bag, which is fastened to the rod, is tensioned.
- The invention provides a vehicle occupant restraint system in which a rod, stressed with regard to thrust and bending, can be avoided as power transmission means. This is achieved in a vehicle occupant restraint system which comprises an inflatable gas bag, a gas-carrying distributor pipe projecting into the gas bag and a piston housed displaceably in the distributor pipe. The restraint system further comprises a power transmission means which connects the piston and the gas bag with each other, which is constructed as a traction means, and via which a force for tensioning the gas bag is transferred onto the latter. Further, a deflection member for the power transmission means is provided in the distributor pipe. Through the provision of an integrated deflection member, it is possible to use a flexible traction means and to draw it by means of the expanding gas further into the distributor pipe, although the moving piston moves outwards. In the process, advantageously a tensioning cable can be used as traction means.
- The deflection member deflects the traction means through approximately 180° and advantageously extends through an opening in the piston in which it is displaceable. The traction means leaves the distributor pipe preferably at one of its ends, so that no additional openings which are to be sealed have to be provided in the distributor pipe.
- So that the traction means is positioned exactly in the distributor pipe and also remains there during the tensioning process, one or more traction means guides can be provided in the distributor pipe, which can be formed for example in one piece on the distributor pipe.
- Preferably, a deflection sheave comes to be used as deflection member, so that as few friction losses occur as possible.
- According to the preferred embodiment, the occupant restraint system is a side occupant restraint system with a head-side gas bag having a large area, which serves for the at least partial covering of a side window of a vehicle. The distributor pipe extends along the roof frame of the vehicle.
- In the region of a vehicle column, according to the preferred embodiment a further deflection member is provided for the traction means, from which deflection member the traction means extends to the gas bag. The gas bag is tensioned between fastening points, preferably at its opposite ends, at least one of the fastening points being formed by the traction means.
- By the invention it is possible to hold the head gas bag, which has a large area, tensioned over several seconds, for example during an overturn of the vehicle, if a portion of the gas has already escaped from the gas bag.
- FIG. 1 shows a perspective view of an embodiment of the vehicle occupant restraint system according to the invention, with the gas bag unfolded, and
- FIG. 2 shows a perspective sectional view through the end of the distributor pipe, framed with broken lines in FIG. 1.
- In FIG. 1 a side vehicle occupant restraint system is illustrated, which has an inflated
head gas bag 3 having a large area, which covers theside windows 5, 7 of a vehicle to a large part and extends from the A-column 9 to the C-column 11 of the vehicle. The restraint system has in addition adistributor pipe 13 and also agas generator 15 which is arranged in the region of the C-column. The distributor pipe extends from thegas generator 15 into the interior of thegas bag 3 and along the roof frame 17 of the vehicle up to the A-column 9, where it ends. Thegas bag 3 has so-called tensioning bands 21 in the region of its opposite ends and in the region of itslower edge 19, which serve for anchoring the gas bag in the vehicle and which belong to thegas bag 3. The outer ends of the tensioning bands 21 are fastening points of thegas bag 3. - The rear tensioning band21 is fastened by its rear free end to the C-
column 11. On the front tensioning band 21 a traction means in the form of atraction cable 23 is fastened, which extends horizontally up to afirst deflection sheave 25 as deflection member. Thefirst deflection sheave 25 is arranged in the lower region of the A-column. From thedeflection sheave 25, thetraction cable 23 runs along the A-column 9 upwards and at the front, open end of thedistributor pipe 13 on the end face into thispipe 13, as FIG. 2 shows. Only a section ofgas bag 3 is illustrated in FIG. 2. - In the region of the open end of the
distributor pipe 13, a traction meansguide 27 is provided in the form of a pin formed in one piece on thedistributor pipe 13 and having a passage opening for thetraction cable 23. Thetraction cable 23 extends deeper into the interior of thedistributor pipe 13 and through a passage opening in apiston 29, displaceably mounted in thedistributor pipe 13, up to a rotatably mountedsecond deflection sheave 31 arranged stationary in the distributor pipe, which sheave 31 forms a deflection member for thetraction cable 23. Through thedeflection sheave 31, the traction cable is deflected through 180°. The deflectedend 33 of the traction cable is then fastened to the piston. - In the case of restraint, the
gas generator 15 generates gas which flows into thedistributor pipe 13 and from there via openings in thedistributor pipe 13 into the gas bag. A portion of the gas arrives up to thepiston 29 and displaces the latter according to FIG. 2 to the left in the direction of arrow A. Thetraction cable 23 is thereby drawn from thedeflection sheave 31 in the direction of arrow B and the tensioning band 21 is drawn in the direction of arrow C in FIG. 1 and tensioned. Thereby, thegas bag 3 is tensioned in the region of itslower edge 19 between its fastening points. It remains stable over several seconds and can thereby also still develop a sufficient protective effect in the case of an overturn of the vehicle.
Claims (10)
1. A vehicle occupant restraint system, comprising
an inflatable gas bag,
a gas-carrying distributor pipe projecting into said gas bag,
a piston housed displaceably in said distributor pipe,
a power transmission means, which connects said piston and said gas bag with each other, which is constructed as a traction means and via which a force for tensioning said gas bag is transferred onto said gas bag, and
a deflection member for said power transmission means in said distributor pipe.
2. The vehicle occupant restraint system according to , wherein said deflection member deflects said traction means through approximately 180°.
claim 1
3. The vehicle occupant restraint system according to , wherein at least one gas generator is provided which is connected with an interior of said distributor pipe such that it inflates said gas bag and leads to a displacement of said piston.
claim 1
4. The vehicle occupant restraint system according to , wherein said piston is provided with an opening, said traction means extending through said opening in said piston.
claim 3
5. The vehicle occupant restraint system according to , wherein at least one traction means guide is provided in said distributor pipe.
claim 1
6. The vehicle occupant restraint system according to , wherein said traction means guide is formed in one piece on said distributor pipe.
claim 5
7. The vehicle occupant restraint system according to , wherein said deflection member is a deflection sheave.
claim 1
8. The vehicle occupant restraint system according to , wherein it is a side restraint system comprising a head gas bag having a large area and partially covering at least one side window of a vehicle, and wherein said distributor pipe extends along a roof frame of said vehicle.
claim 1
9. The vehicle occupant restraint system according to , wherein in a region of a vehicle column a further deflection member is provided for said traction means, from which deflection member said traction means extends to said gas bag.
claim 8
10. The vehicle occupant restraint system according to , wherein said gas bag extends between two of said vehicle columns and said traction means tensions said gas bag when unfolded between two fastening points provided at opposite ends of said gas bag.
claim 9
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20001960.0 | 2000-02-04 | ||
DE20001960 | 2000-02-04 | ||
DE20001960U DE20001960U1 (en) | 2000-02-04 | 2000-02-04 | Vehicle occupant restraint system |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010017459A1 true US20010017459A1 (en) | 2001-08-30 |
US6454297B2 US6454297B2 (en) | 2002-09-24 |
Family
ID=7936832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/772,836 Expired - Fee Related US6454297B2 (en) | 2000-02-04 | 2001-01-30 | Vehicle occupant restraint system |
Country Status (2)
Country | Link |
---|---|
US (1) | US6454297B2 (en) |
DE (2) | DE20001960U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180162314A1 (en) * | 2016-12-12 | 2018-06-14 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
US20180265029A1 (en) * | 2017-03-16 | 2018-09-20 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
US10501044B2 (en) | 2016-12-12 | 2019-12-10 | Hyundai Mobis Co., Ltd. | Curtain airbag apparatus |
US10556564B2 (en) | 2016-12-12 | 2020-02-11 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6375214B1 (en) * | 1999-07-12 | 2002-04-23 | Mazda Motor Corporation | Occupant protection device of vehicle |
GB2369091B (en) * | 2000-11-16 | 2004-02-04 | Autoliv Dev | Improvement in or relating to an air-bag arrangement |
JP3592653B2 (en) * | 2001-06-11 | 2004-11-24 | 本田技研工業株式会社 | Occupant restraint |
US6733035B2 (en) * | 2002-03-05 | 2004-05-11 | Delphi Technologies, Inc. | Side curtain air bag assembly |
DE10233595B4 (en) * | 2002-07-19 | 2009-02-19 | Takata-Petri Ag | Side impact protection device for motor vehicles |
US20050206135A1 (en) * | 2003-10-27 | 2005-09-22 | Nelson James E | Curtain airbag handling device |
US7125038B2 (en) * | 2003-10-27 | 2006-10-24 | Autoliv Asp, Inc. | Twist prevention apparatus and method for an inflatable airbag curtain |
DE102018129265A1 (en) * | 2018-11-21 | 2020-05-28 | Trw Automotive Gmbh | Vehicle occupant restraint system for a motor vehicle and motor vehicle with a vehicle occupant restraint system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5226672A (en) * | 1991-04-11 | 1993-07-13 | Husted Royce Hill | Web restraint system |
JPH06344841A (en) * | 1993-06-11 | 1994-12-20 | Honda Motor Co Ltd | Occupant protecting device for vehicle |
GB2326385B (en) * | 1995-02-20 | 1999-08-25 | Autoliv Dev | Improvements in or relating to a safety device |
JPH1071912A (en) * | 1996-06-26 | 1998-03-17 | Tokai Rika Co Ltd | Air bag device |
DE19719926A1 (en) | 1997-05-13 | 1998-11-19 | Hs Tech & Design | Airbag fixture with airbag anchored along roof spar of vehicle |
DE19736200A1 (en) * | 1997-08-20 | 1999-02-25 | Takata Europ Gmbh | Safety device for a motor vehicle |
US6029993A (en) * | 1997-10-06 | 2000-02-29 | Inova Gmbh Technische Entwicklungen | Side airbag device, method for operation thereof and vehicle seat therewith |
DE29806200U1 (en) * | 1998-04-03 | 1998-09-03 | Trw Repa Gmbh | Inflatable protective cushion to cover the side windows in the vehicle |
US6168194B1 (en) * | 1999-08-05 | 2001-01-02 | Trw Inc. | Inflatable curtain with tensioning device |
-
2000
- 2000-02-04 DE DE20001960U patent/DE20001960U1/en not_active Expired - Lifetime
-
2001
- 2001-01-29 DE DE2001103828 patent/DE10103828A1/en not_active Withdrawn
- 2001-01-30 US US09/772,836 patent/US6454297B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180162314A1 (en) * | 2016-12-12 | 2018-06-14 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
US10501044B2 (en) | 2016-12-12 | 2019-12-10 | Hyundai Mobis Co., Ltd. | Curtain airbag apparatus |
US10556564B2 (en) | 2016-12-12 | 2020-02-11 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
US10604103B2 (en) * | 2016-12-12 | 2020-03-31 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
US20180265029A1 (en) * | 2017-03-16 | 2018-09-20 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
US10625705B2 (en) * | 2017-03-16 | 2020-04-21 | Hyundai Mobis Co., Ltd. | Roof airbag apparatus |
Also Published As
Publication number | Publication date |
---|---|
US6454297B2 (en) | 2002-09-24 |
DE10103828A1 (en) | 2001-08-09 |
DE20001960U1 (en) | 2000-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TRW OCCUPANT RESTRAINT SYSTEMS GMBH & CO. KG, GERM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FISCHER, ANTON;REEL/FRAME:011496/0909 Effective date: 20010124 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Expired due to failure to pay maintenance fee |
Effective date: 20100924 |