WO1990009297A1 - Volant de direction avec coussin d'air - Google Patents

Volant de direction avec coussin d'air Download PDF

Info

Publication number
WO1990009297A1
WO1990009297A1 PCT/SE1990/000092 SE9000092W WO9009297A1 WO 1990009297 A1 WO1990009297 A1 WO 1990009297A1 SE 9000092 W SE9000092 W SE 9000092W WO 9009297 A1 WO9009297 A1 WO 9009297A1
Authority
WO
WIPO (PCT)
Prior art keywords
steering wheel
hub
air bag
bag device
wheel rim
Prior art date
Application number
PCT/SE1990/000092
Other languages
English (en)
Inventor
Per-Arne Reinholdsson
Original Assignee
Ab Volvo
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 Ab Volvo filed Critical Ab Volvo
Publication of WO1990009297A1 publication Critical patent/WO1990009297A1/fr

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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
    • B60R21/2035—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit
    • B60R21/2037—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit the module or a major component thereof being yieldably mounted, e.g. for actuating the horn switch or for protecting the driver in a non-deployment situation
    • 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
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B60R21/05—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the steering wheel, steering hand lever or steering column

Definitions

  • the present invention relates to a vehicle steering wheel, comprising a steering wheel hub, a steering wheel rim, elements joining the steering wheel rim to the hub, and a gas generator eguipped air bag device joined to the hub.
  • Gas cushion devices or air bags as they are commonly known, have come into use to a certain extent as a complement to the passive safety system in motor vehicles.
  • Engineering developments in this area were initially directed to entire systems of gas balloons or bags placed in front of the vehicle occupants and mounted in the dash ⁇ board or in the steering wheel. Later design development has, however, lately been concentrated to the latter type, i.e. air bag units in the steering wheel.
  • a sheet metal bowl or box mounted inside the steering wheel rim and containing, in addition to a perforated folded bag, a gas generator.
  • the bowl is open towards the driver and is covered by a padded cover which is opened when the unit is triggered.
  • the unit has been a complement to the rest of the vehicle safety eguipment, such as seat belts, padding or upholstery on other com ⁇ ponents, etc. It has also served as an alternative to previously known passive safety devices in the steering arrangement in the form of specially designed steering wheel spokes, steering shafts and joints, providing together an intentional controlled collapse of the steer ⁇ ing system with accompanying controlled energy absorption upon collision.
  • This supporting sheet metal bowl in the unit has in hitherto known installations been mounted rigidly on the steering wheel hub or on the steering wheel spokes without making any other reguirements of the in ⁇ stallation other than that it be securely fixed to the steering wheel.
  • the SRS unit air bag is rapidly inflated, and is thereafter emptied of gas during energy absorption when it is compressed by the occupant's weight and the gas in the bag is pressed out through perforations in the bag.
  • the driver may, despite the presence of the air bag, at the end of the course of the collision strike the steering wheel, and depending on the driver's remaining kinetic energy, the steering wheel rim and the SRS unit can cause injury.
  • the purpose of the present invention is to achieve a steering arrangement of the type described by way of introduction, which will make it possible to reduce in ⁇ juries occurring during a collision, where the energy absorbing bag is not able to absorb sufficient energy to prevent impact against the steering wheel.
  • the air bag device is joined to the hub via a carrier extending from the hub and so constructed that the carrier, upon a certain compressive loading of the air bag device, can be deformed to permit displacement of the air bag device towards the steering wheel hub.
  • the design according to the invention makes it possible to incorporate an air bag device in the chain of components in a steering arrangement in which the design and the dimensions of the components are calculated to provide a controlled course of deformation with accompanying con ⁇ trolled energy absorption.
  • Figure 1 shows a perspective X-ray view of a schematically represented vehicle steering wheel with an air bag device which has still not been mounted.
  • Figure 2 shows a view corresponding to Figure l with the air bag device in place
  • Figure 3 is a view corresponding to Figure 2 after driver impact during a collision.
  • the steering wheel 1 shown in the Figures has a steering wheel rim 2, consisting of a steel ring 4 sheathed in a covered foamed plastic jacket 3.
  • the ring 4 is joined via spokes 5 to a steering wheel centre in the form of a hub 6, which is mounted on a steering shaft 7.
  • the spokes 5 are dimensioned in a known manner and are designe'd to be deformed upon a certain loading of the steering wheel rim 2, thus absorbing energy, and comprise for this purpose flat metal bars 8 which are pre-bent at 9 to be able to collapse upon being loaded.
  • the spokes 5, as is the rim 2 are sheathed in the covered foamed plastic jacket 3.
  • An air bag device which can be of a type known per se, known as the SRS unit, is mounted centrally in the steering wheel.
  • the unit 10 is joined to * the hub 6 via four essentially Z- ⁇ haped flat metal bars 11, which are joined to each other in pairs by means of a pair of metal strips 12 which in turn form the mounting means for the unit 10.
  • the described arrangement provides an air bag installation which, as regards its mounting, is entirely free from the steering wheel rim 2 and the steering wheel spokes 5.
  • Figure 3 shows the flat metal bars 8 and 11, respectively, of the spokes and the air bag device, respectively, after driver impact against the steering wheel.
  • the Figure shows the final result after the course of the collision resulting in both the steering wheel rim 2 and the air bag device 10 being loaded so forcefully, that the flat bars 8 of the steering wheel spokes 5 and the flat bars 11 of the unit 10 have been deformed.
  • a controlled deceleration is obtained in which the bars 8 and 11 function as energy absorbing means both in series and in parallell with each other.
  • deformable means can be used than pre-bent metal bars for fixing the air bag device to the hub.
  • a metal bellows can be arranged between the steering wheel hub and the air bag device.

Landscapes

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

Abstract

La présente invention se rapporte à un volant de direction pourvu d'un dispositif à coussin d'air connu sous le nom d'unité SRS (c'est-à-dire à système de retenue supplémentaire). Le dispositif est joint au volant de direction (1) par l'intermédiaire de barres métalliques plates (11), qui sont fixées à l'axe (6) du volant de direction et qui sont préalablement coudées pour pouvoir être déformées de façon régulée, permettant ainsi le déplacement du dispositif à coussin d'air (10) par rapport au volant de direction, lors d'un choc de ce dernier avec le conducteur.
PCT/SE1990/000092 1989-02-14 1990-02-13 Volant de direction avec coussin d'air WO1990009297A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8900499-8 1989-02-14
SE8900499A SE463303B (sv) 1989-02-14 1989-02-14 Fordonsratt med gaskudde

Publications (1)

Publication Number Publication Date
WO1990009297A1 true WO1990009297A1 (fr) 1990-08-23

Family

ID=20375040

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000092 WO1990009297A1 (fr) 1989-02-14 1990-02-13 Volant de direction avec coussin d'air

Country Status (2)

Country Link
SE (1) SE463303B (fr)
WO (1) WO1990009297A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488618A1 (fr) * 1990-11-27 1992-06-03 Mazda Motor Corporation Structure de volant de direction pour véhicule
GB2270883A (en) * 1992-09-28 1994-03-30 Autoliv Dev A steering wheel structure
GB2290267A (en) * 1994-06-07 1995-12-20 Autoliv Dev Collapsible mounting for air bag in steering wheel
GB2292353A (en) * 1994-08-19 1996-02-21 Petri Ag Crushable mounting for airbag
DE19645373A1 (de) * 1996-10-22 1998-04-30 Petri Ag Verfahren zur Sicherung eines Fahrzeuginsassen und Airbagmodul zur Durchführung des Verfahrens
US6095549A (en) * 1997-05-02 2000-08-01 Petri Ag Airbag system for motor vehicles
DE19950944A1 (de) * 1999-10-22 2001-04-26 Bayerische Motoren Werke Ag Knierückhalteeinrichtung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827715A (en) * 1972-04-28 1974-08-06 Specialty Prod Dev Corp Pyrotechnic gas generator with homogenous separator phase
SE382779B (sv) * 1972-09-25 1976-02-16 Gen Motors Corp Sasom modulenhet utformat personaterhallande system for motorfordon
DE2535806A1 (de) * 1974-09-04 1976-03-18 Alfa Romeo Alfasud Sicherheitslenkrad fuer kraftfahrzeuge
SE385202B (sv) * 1970-07-09 1976-06-14 Daimler Benz Ag Sekerhetsanordning for motorfordon, med en vid ratten anordnad gaskudde
DE3527581A1 (de) * 1985-08-01 1987-02-12 Bayerische Motoren Werke Ag Kraftfahrzeug-lenkrad
US4644817A (en) * 1979-09-06 1987-02-24 Daimler-Benz Aktiengesellschaft Steering wheel for a motor vehicle
DE3621226C1 (de) * 1986-06-25 1988-01-14 Daimler Benz Ag Lenkradanordnung fuer Fahrzeuge
US4790209A (en) * 1985-08-29 1988-12-13 Toyoda Gosei Co., Ltd. Impact energy absorbing steering wheel
GB2218183A (en) * 1988-03-29 1989-11-08 Takata Corp A mounting arrangement for a vehicle air bag

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE385202B (sv) * 1970-07-09 1976-06-14 Daimler Benz Ag Sekerhetsanordning for motorfordon, med en vid ratten anordnad gaskudde
US3827715A (en) * 1972-04-28 1974-08-06 Specialty Prod Dev Corp Pyrotechnic gas generator with homogenous separator phase
SE382779B (sv) * 1972-09-25 1976-02-16 Gen Motors Corp Sasom modulenhet utformat personaterhallande system for motorfordon
DE2535806A1 (de) * 1974-09-04 1976-03-18 Alfa Romeo Alfasud Sicherheitslenkrad fuer kraftfahrzeuge
US4644817A (en) * 1979-09-06 1987-02-24 Daimler-Benz Aktiengesellschaft Steering wheel for a motor vehicle
DE3527581A1 (de) * 1985-08-01 1987-02-12 Bayerische Motoren Werke Ag Kraftfahrzeug-lenkrad
US4790209A (en) * 1985-08-29 1988-12-13 Toyoda Gosei Co., Ltd. Impact energy absorbing steering wheel
DE3621226C1 (de) * 1986-06-25 1988-01-14 Daimler Benz Ag Lenkradanordnung fuer Fahrzeuge
GB2218183A (en) * 1988-03-29 1989-11-08 Takata Corp A mounting arrangement for a vehicle air bag

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5310218A (en) * 1990-11-27 1994-05-10 Mazda Motor Corporation Steering wheel structure for vehicle
EP0488618A1 (fr) * 1990-11-27 1992-06-03 Mazda Motor Corporation Structure de volant de direction pour véhicule
GB2270883B (en) * 1992-09-28 1996-04-03 Autoliv Dev Improvements in or relating to a steering wheel structure
GB2270883A (en) * 1992-09-28 1994-03-30 Autoliv Dev A steering wheel structure
GB2290267A (en) * 1994-06-07 1995-12-20 Autoliv Dev Collapsible mounting for air bag in steering wheel
GB2290267B (en) * 1994-06-07 1998-02-04 Autoliv Dev Improvements in or relating to a safety arrangement
DE4430588C2 (de) * 1994-08-19 1999-02-25 Petri Ag Gassack (Airbag)-System für Kraftfahrzeuge
FR2723711A1 (fr) * 1994-08-19 1996-02-23 Petri Ag Systeme a coussin de securite gonflable, pour vehicules automobiles
GB2292353B (en) * 1994-08-19 1998-09-09 Petri Ag Airbag system for vehicle
US5826901A (en) * 1994-08-19 1998-10-27 Petri Ag Airbag system for vehicle
ES2122883A1 (es) * 1994-08-19 1998-12-16 Petri Ag Sistema de bolsa de gas (airbag) para vehiculos motorizados.
GB2292353A (en) * 1994-08-19 1996-02-21 Petri Ag Crushable mounting for airbag
DE19645373A1 (de) * 1996-10-22 1998-04-30 Petri Ag Verfahren zur Sicherung eines Fahrzeuginsassen und Airbagmodul zur Durchführung des Verfahrens
US6120057A (en) * 1996-10-22 2000-09-19 Petri Ag Vehicle passenger safety method and air bag module for the implementation thereof
US6095549A (en) * 1997-05-02 2000-08-01 Petri Ag Airbag system for motor vehicles
DE19950944A1 (de) * 1999-10-22 2001-04-26 Bayerische Motoren Werke Ag Knierückhalteeinrichtung

Also Published As

Publication number Publication date
SE8900499L (sv) 1990-08-15
SE463303B (sv) 1990-11-05
SE8900499D0 (sv) 1989-02-14

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