EP1135280A2 - Coussin pour pieds integre dans un tapis de sol et configure comme composant de retenue passive dans un vehicule - Google Patents
Coussin pour pieds integre dans un tapis de sol et configure comme composant de retenue passive dans un vehiculeInfo
- Publication number
- EP1135280A2 EP1135280A2 EP98967121A EP98967121A EP1135280A2 EP 1135280 A2 EP1135280 A2 EP 1135280A2 EP 98967121 A EP98967121 A EP 98967121A EP 98967121 A EP98967121 A EP 98967121A EP 1135280 A2 EP1135280 A2 EP 1135280A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carpet
- foot cushion
- gas generator
- foot
- footwell
- 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- Withdrawn
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
-
- 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
- B60R2021/23176—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for foot protection
Definitions
- the present invention relates to a carpet-integrated foot cushion as a passive restraint component in a vehicle as a device for reducing the risk of injury to the foot and leg area of a person sitting on a seat arranged in the interior of a vehicle in the event of an accident-related deformation of the footwell according to German Patent 196 39 467 .
- a gas bag of an associated airbag module is arranged in the footwell, into which gas is suddenly introduced by a gas generator upon a trigger signal, whereupon the gas bag briefly fills the footwell in question to a predetermined extent, so as to provide a cushioning cushion for to form the foot area before the bulkhead intrudes into the vehicle interior.
- vehicles of a newer type have a floor covering in the footwell that is at least expanded by acoustic damping measures compared to previous floor coverings.
- modern Floor coverings on an acoustic damping layer which is covered with the actual carpet layer.
- the footwell is lined with a floor covering which consists of an acoustically damping layer and a carpet lying thereon.
- the foot cushion is formed in the footwell between the acoustically damping layer and the carpet of the floor covering, the gas from the gas generator being conducted into the space between the acoustically damping layer and the carpet and the carpet in the area of the foot cushion which is being formed is only partially attached to the acoustic damping layer.
- a discreet gas bag is no longer used, but the multilayered structure of modern floor coverings is used to briefly form a foot cushion between the floor covering layers.
- the multiple layers of modern floor coverings therefore make it possible to dispense with the integration of a conventional gas bag.
- the solution according to the invention enables the inflatable foot cushion to be integrated into the production process from the outset, even if the production process is modified. This could reduce the cost of the foot pad be kept extremely low, which can lead to widespread market acceptance.
- venting permeability of the foot cushion which allows the gas to escape from the foot cushion after inflation, is given by the gas permeability of the acoustically damping layer and the carpet, that is to say of the entire floor covering.
- the carpet in the area of the foot cushion to be trained as a result of the accident is only fixed at predetermined tears or breaks on the acoustically damping layer of the floor covering. If the gas generator is not activated, fixing the carpet to the said tear or break points ensures that the carpet does not wrinkle.
- these tears or breaks after activation of the gas generator allow the foot cushion to be suddenly inflated to full size within a few milliseconds, in which case the carpet is no longer attached to the acoustic-damping layer in that the underside of the carpet is removed from the fixing points tears off. A predictable design of the foot pad is guaranteed.
- the gas generator which conducts the gas into the foot cushion
- the gas generator is a two-stage gas generator.
- Two separate pressure lines could be connected to this, one of which conducts gas into the foot cushion according to the invention.
- the other pressure line could advantageously be connected, for example, to a frontal airbag.
- both the foot cushion and a frontal airbag would be inflated. This reduces the amount of material required, such as that of several generators, to a minimum.
- the chronological order for example It can also be used to control how many milliseconds the foot cushion should be inflated earlier than a frontal airbag.
- the gas generator is a single-stage gas generator, to which, however, several pressure lines are connected, the ratio of their flow-related diameters having a significant influence on the temporal inflation behavior of the connected gas bag and the foot cushion.
- FIG. 1 shows the schematic structure of the device
- Figure 2 shows the device at rest
- Figure 3 shows the device directly after ignition of the gas generator.
- FIG 1 clearly shows the schematic structure of the device.
- the floor covering 19 in the footwell of the vehicle nowadays consists of an acoustically insulating layer 22 to which a carpet layer 23 is applied.
- the hatched areas of the acoustically insulating layer 22, which are in a fixing connection with the carpet 23, are shown hatched. Those places of the layer 22 where the carpet 23 is not are brightly colored. It can be seen that in the light spots there are some tears or breaks 21 at which the carpet 23 is fixed when the system is at rest. This allows the carpet 23 not to wrinkle when the system is at rest.
- a gas pressure line 25 is guided through the layer 22 and is connected to a gas generator 20.
- FIG. 2 shows the system in the idle state, in which the floor covering 19 is assembled from the acoustically damping layer 22 and the carpet 23 thereon, preferably fixed as explained with reference to FIG. 1.
- the gas generator 20 is in the idle state.
- the gas generator 20 is ignited, as indicated in FIG. 3. Then gas is suddenly passed through the pressure line 25 into the prepared foot pad 24, which leads to bulging of the carpet 23 on the layer 22.
- the foot cushion is not realized by a separate, discrete gas bag, but rather by introducing the gas from the gas generator 20 between the layers 22 and 23 of the floor covering 19, which is generally present anyway, in the vehicle. After the foot cushion 24 has been inflated, the gas escapes through the gas-permeable floor covering 19, so that the foot cushion 24 can perform its damping function.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Passenger Equipment (AREA)
Abstract
L'invention concerne un dispositif destiné à réduire le risque de blessure dans la zone des pieds et des jambes d'un individu assis dans le siège d'un véhicule, en cas de déformation de la zone où se trouvent les pieds, due à un accident. Cette zone est munie d'un revêtement de sol (19) comprenant une couche insonorisante (22) et un tapis (23) placé dessus. Ce dispositif comprend un coussin gonflable (24) placé au sol, associé à la zone où se trouvent les pieds, et dans lequel un générateur de gaz (20) qui lui est associé, introduit brusquement du gaz, en réponse à un signal de déclenchement. Le coussin gonflable placé au sol (24) remplit momentanément la zone concernée, où se trouvent les pieds, dans une mesure prédéterminée, avant que le tablier d'auvent ne pénètre dans l'habitacle. Selon l'invention, le coussin gonflable placé au sol (24) est formé entre la couche insonorisante (22) et le tapis (23) du revêtement de sol (19). Le gaz est guidé depuis le générateur de gaz (10), dans l'espace compris entre la couche insonorisante (22) et le tapis (23) qui n'est fixé que par endroits à la couche insonorisante (22), dans la zone où le coussin glonflable (24) prend forme.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997156430 DE19756430A1 (de) | 1996-09-26 | 1997-12-18 | Teppichintegriertes Fußpolster als passive Rückhaltekomponente in einem Fahrzeug |
DE19756430 | 1997-12-18 | ||
PCT/EP1998/008181 WO1999030931A2 (fr) | 1997-12-18 | 1998-12-14 | Coussin gonflable au sol, integre dans un tapis, sous forme d'element de retenue passif dans un vehicule |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1135280A2 true EP1135280A2 (fr) | 2001-09-26 |
Family
ID=7852462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98967121A Withdrawn EP1135280A2 (fr) | 1997-12-18 | 1998-12-14 | Coussin pour pieds integre dans un tapis de sol et configure comme composant de retenue passive dans un vehicule |
Country Status (4)
Country | Link |
---|---|
US (1) | US6352281B1 (fr) |
EP (1) | EP1135280A2 (fr) |
AU (1) | AU3248599A (fr) |
WO (1) | WO1999030931A2 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2351046B (en) | 1999-06-18 | 2003-01-08 | Autoliv Dev | Improvements in or relating to an air-bag arrangement |
FR2796022B1 (fr) * | 1999-07-06 | 2002-12-27 | Sai Automotive Sommer Ind | Dispositif de protection des membres inferieurs du conducteur et/ou du passager avant d'un vehicule automobile |
US6962368B2 (en) | 2000-03-14 | 2005-11-08 | Autoliv Development Ab | Load distribution element for an air-bag |
DE60106354T2 (de) * | 2000-03-14 | 2006-02-23 | Autoliv Development Ab | Sicherheitsvorrichtung |
US6817625B2 (en) | 2000-03-14 | 2004-11-16 | Autoliv Development Ab | Safety arrangement |
GB2360254B (en) * | 2000-03-14 | 2003-06-04 | Autoliv Dev | Improvements in or relating to an air-bag arrangement |
DE20319429U1 (de) * | 2003-12-12 | 2005-04-28 | Carcoustics Tech Center Gmbh | Trittfeste, akustische wirksame Bodenverkleidung für Kraftfahrzeuge |
US7264271B2 (en) * | 2004-08-13 | 2007-09-04 | General Motors Corporation | Reversibly deployable energy absorbing assembly and methods for operating the same |
US7350851B2 (en) * | 2005-03-08 | 2008-04-01 | Gm Global Technology Operations, Inc. | Reversibly expandable energy absorbing assembly and methods for operating the same |
US10266140B2 (en) * | 2017-01-19 | 2019-04-23 | Ford Global Technologies, Llc | Restraint system |
DE102017210121B4 (de) | 2017-06-16 | 2019-06-06 | Ford Global Technologies, Llc | Sicherheits-Fußstützvorrichtung eines Fahrzeugs |
USD835424S1 (en) | 2018-04-19 | 2018-12-11 | Qiang Fu | Foot rest cushion |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2943866A (en) * | 1957-01-10 | 1960-07-05 | Witter Mathias | Protective device |
US3591232A (en) * | 1969-04-01 | 1971-07-06 | Lewis B Simon | Automatic vehicle occupant restraint |
US4154472A (en) * | 1977-09-09 | 1979-05-15 | Gateway Industries, Inc. | Method and apparatus for protecting a vehicle occupant |
JPS54155523A (en) * | 1978-05-26 | 1979-12-07 | Takada Kogyo Kk | Seat for car |
JPS63207744A (ja) * | 1987-02-20 | 1988-08-29 | Yamato:Kk | 自動車用マツト |
GB2218385A (en) * | 1988-03-29 | 1989-11-15 | Trw Repa Gmbh | Vehicle passive restraint system with gas bag and knee cushion |
DE4032385C2 (de) * | 1990-10-12 | 1994-06-23 | Audi Ag | Sicherheitseinrichtung für einen Fahrzeuginsassen |
JP3082392B2 (ja) | 1992-02-05 | 2000-08-28 | タカタ株式会社 | 車両乗員の保護装置 |
DE4345185C2 (de) * | 1993-03-31 | 1995-03-23 | Mueller Franz Dipl Ing Fh | Verfahren zum Verringern der bei einem Aufprall eines Fahrzeugs auf ein Hindernis auf einen auf einem Sitz angegurteten Fahrzeuginsassen einwirkenden Kräfte unter Verwendung von Airbags |
DE4405075A1 (de) * | 1994-02-17 | 1996-01-18 | Siegfried Langwieser | Insassenschutz für Automobile gegen seitlichen Aufprall, Verhinderung gefährlicher Verformung der Insassenzelle, Türen und Sitze sowie des Dachraumes |
US5458366A (en) * | 1994-06-01 | 1995-10-17 | Morton International, Inc. | Compartmentalized airbag knee bolster |
DE4445487C1 (de) * | 1994-12-20 | 1996-05-02 | Audi Ag | Sicherheitseinrichtung für Fahrzeuge |
DE29517953U1 (de) | 1995-11-13 | 1995-12-21 | Trw Repa Gmbh | Knieschutzeinrichtung |
US5695242A (en) * | 1996-02-15 | 1997-12-09 | Breed Automotive Technology, Inc. | Seat cushion restraint system |
DE19639467C1 (de) * | 1996-09-26 | 1998-01-08 | Pars Passive Rueckhaltesysteme | Einrichtung zur Verminderung der Verletzungsgefahr des Fuß- und Beinbereiches einer Person im Inneren eines Fahrzeugs |
US6158766A (en) * | 1999-02-26 | 2000-12-12 | Lear Corporation | Vehicle floor system incorporating airbag |
US6217059B1 (en) * | 1999-08-16 | 2001-04-17 | Trw Inc. | Apparatus for helping to protect a vehicle occupant's legs |
US6213505B1 (en) * | 2000-02-04 | 2001-04-10 | Trw Inc. | Apparatus for protecting lower extremities of a vehicle occupant |
-
1998
- 1998-12-14 US US09/581,783 patent/US6352281B1/en not_active Expired - Fee Related
- 1998-12-14 WO PCT/EP1998/008181 patent/WO1999030931A2/fr not_active Application Discontinuation
- 1998-12-14 EP EP98967121A patent/EP1135280A2/fr not_active Withdrawn
- 1998-12-14 AU AU32485/99A patent/AU3248599A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9930931A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999030931A2 (fr) | 1999-06-24 |
US6352281B1 (en) | 2002-03-05 |
AU3248599A (en) | 1999-07-05 |
WO1999030931A3 (fr) | 1999-11-25 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
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17P | Request for examination filed |
Effective date: 20000615 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20040513 |