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WO2009039962A1 - Siège de véhicule automobile et dispositif de sécurité pour un siège de véhicule automobile - Google Patents

Siège de véhicule automobile et dispositif de sécurité pour un siège de véhicule automobile Download PDF

Info

Publication number
WO2009039962A1
WO2009039962A1 PCT/EP2008/007446 EP2008007446W WO2009039962A1 WO 2009039962 A1 WO2009039962 A1 WO 2009039962A1 EP 2008007446 W EP2008007446 W EP 2008007446W WO 2009039962 A1 WO2009039962 A1 WO 2009039962A1
Authority
WO
WIPO (PCT)
Prior art keywords
airbag
safety device
gas
cushion
gas cushion
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/EP2008/007446
Other languages
German (de)
English (en)
Inventor
Gilles Garret
Frederic Charpentier
Ola BOSTRÖM
Yngve Haland
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
Publication of WO2009039962A1 publication Critical patent/WO2009039962A1/fr
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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • 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
    • B60R21/2334—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
    • B60R21/23—Inflatable members
    • B60R21/239—Inflatable members characterised by their venting means

Definitions

  • the invention relates to a safety device for a motor vehicle seat with a cushion and a motor vehicle seat with an arranged in the cushion safety device with an airbag, which is coupled to a gas generator which is activated in the presence of sensor data on an accident or an impending accident and the airbag Gas filled and unfolded, and with an activator, via which a separate gas cushion is additionally repeatedly reversibly filled with gas.
  • Motor vehicle seats are increasingly equipped with functions that increase the comfort and safety of seat occupants.
  • the air cushion can be designed to increase the seating comfort and to adapt the seat contour to the seat occupant.
  • a safety device in a motor vehicle seat is known from DE 10 2005 059 997 A1, in which an airbag which can be filled via a gas generator is additionally coupled to an activator which can repeatedly fill the airbag reversibly with gas. Due to the arrangement of the airbag in the side wall can be done with an increase in volume of the airbag through the activator better connection to the seat. The seat back is enlarged and moved in the direction of the seat occupant. In the event of an accident, a gas generator is activated, which causes an escape of the airbag from the motor vehicle seat, so that the airbag may extend between the seat occupant and a body structure.
  • a motor vehicle seat with a padded seat part in which an airbag is inflated in an accident and tears open a cover fabric at a connecting seam between two fabric blanks. Between these cover fabric blanks, a strip of fabric material is used, which allows an enlargement of the side cheek of the seat. Instead of a freely deployed airbags over the seat back or the seat cushion protruding side cheeks are inflated bulging, so that the projection of the side cheeks increases. Within the side cheeks relatively stable airbags are generated over which a vehicle occupant is padded against intruding objects and stabilized in a desired seating position.
  • Object of the present invention is to provide a motor vehicle seat, which provides an increased safety and accident in addition to a comfort and pre-crash function.
  • this object is achieved by a safety device having the features of claim 1 and a motor vehicle seat having the features of claim 17.
  • a safety device having the features of claim 1 and a motor vehicle seat having the features of claim 17.
  • the safety device for a motor vehicle seat with a cushion with an airbag which is coupled to a gas generator which activates in the presence of sensor data on an accident or an imminent accident and filled and deployed the airbag with gas, and with an activator on the one additional gas cushion is repeatedly reversibly filled with gas, provides that the gas cushion is connected via a coupling element with the airbag and that the coupling element opens or forms a ventilation opening in the gas cushion upon deployment of the airbag.
  • gas cushion In a comfort version, relatively small amounts of gas are introduced into the gas cushion, for example, to stiffen the side cheeks of a seat or to realize a massage function.
  • a pre-crash function an increased amount of gas in relation to the comfort function is injected into the gas cushion to allow an improved coupling of the cushion to the seat occupant.
  • the activator In order to avoid that the activator must fill the gas cushion constantly with gas, this is formed as gas-tight as possible, so that once set filling state is maintained. If an accident occurs after a pre-crash activation, the airbag unfolds after triggering of the gas generator and extends next to the seat occupant. The filled gas cushion forms a little yielding element.
  • a ventilation opening in the gas cushion via the coupling element is opened or formed by the activation of the airbag. Through this ventilation opening, the filling gas can escape in a controlled manner in the event of a collision of a seat occupant, so that the impact movement is damped.
  • the coupling element is preferably designed as a cord or a hose, so that it acts as a kind of tether, over which a ventilation opening is opened or formed.
  • a variant of the invention provides that the
  • Coupling element forms a fluidic connection between the gas cushion and the airbag when the ventilation opening is opened, for example by a valve is opened, so that a hose connection is made from the gas cushion to the airbag.
  • the ventilation opening may be formed as a valve, it is also possible that a predetermined crack point, a flap or a tab forms the ventilation opening, which via the
  • Coupling can be opened or removed, so that an opening in the gas cushion is formed.
  • the airbag is designed, in particular, as a side airbag which lies next to the motor vehicle seat between the seat occupant and a vehicle body. there the airbag is arranged on a side facing away from the seat occupant of the pad to avoid direct contact and an immediate directed to the seat occupant movement of the airbag.
  • a tether may be disposed thereon, which is connected to the seat or a seat frame, so that the deployed airbag held toward the seat occupant and prevents evasion of the deployed airbag away from the seat occupant becomes.
  • a predetermined crack site or a predetermined tear seam can be arranged to facilitate leakage of the airbag from the cushion or from the seat and to provide a defined deployment direction can.
  • the activator for filling the gas cushion is preferably designed as an electric pump via which the gas cushion can be filled and also emptied again.
  • the activator is designed as a compressed gas storage with a control valve.
  • the memory may be formed of metal, plastic or a reinforced rubber hose.
  • the gas cushion consists of an elastic material or is held in the upholstery or on the seat frame via elastic bands or fastening elements.
  • the gas cushion and the seat cushion contour return to the starting positions after the overpressure has been released from the gas cushion.
  • the airbag can be covered by a dimensionally stable cap and preferably housed in a shell, alternatively, the airbag is arranged in a soft envelope within the motor vehicle seat.
  • Figure 1 - a schematic sectional view of a part of a motor vehicle seat in the initial state
  • Figure 2 is a detail view of the figure in a pre-crash condition; such as
  • Figure 3 - a representation after triggering of the gas generator.
  • Figure 1 shows a motor vehicle seat 1 in a schematic sectional view with a central part and a seat cheek.
  • a seat frame 2 is arranged, which may be part of a seat back or a seat cushion.
  • a seat cover 4 Around the seat frame 2 around a pad 3 is arranged with a seat cover 4.
  • an airbag 5 is attached to a gas generator 6.
  • the airbag 5 and the gas generator 6 are housed in a soft cover 10 and are held in the desired, folded state about it.
  • a gas cushion 7 is fixed, which can extend in particular in the direction of travel forward or in the vertical direction, depending on whether it is a seat back or a seat cushion.
  • the gas cushion 7 is reversibly filled via an activator 8, which is preferably designed as an electric pump with a gas, in particular with ambient air.
  • the gas cushion 7 is connected to the airbag 5 via a coupling element 9.
  • the coupling element 9 may consist of a hose or a cord and is connected to the airbag 5 in such a way that after its activation
  • Ventilation opening 11 is opened or formed.
  • the coupling element 9 may also be deviating from a cord or a hose, also other connecting elements may be provided.
  • the airbag 5 may also be directly attached to the gas cushion 7 to open or form a ventilation opening 11, for example, by sewing or adhering the airbag 5 to the gas cushion 7.
  • the gas cushion 7 is shown in the filled position. From the folded position according to FIG. 1, an unfolded position 7 according to FIG. 2 has become. This is done via a filling by the activator 8 via a fluidic connection 14.
  • the gas cushion 7 is attached thereto and hooked to the seat frame 2 bands 15, preferably elastic bands 15, held.
  • the elastic bands 15 may also surround the gas cushion 7 to facilitate a return movement.
  • the gas cushion 7 is filled.
  • the gas cushion 7 is inflated more than in a comfort function.
  • the coupling element 9 is fixed to the gas cushion 7 via seams 12.
  • the coupling element 9 itself can close a ventilation opening 11 or be attached to a tab or the like, which closes the ventilation opening 11 of the gas cushion 7.
  • the gas cushion 7 is substantially gas tight and maintains the internal pressure.
  • a controlled pressure reduction within the gas cushion 7 is made possible, so that this is not pressed as a substantially rigid body against the seat occupant.
  • a valve can be opened or unlocked. Upon opening of a valve, the compressed gas contained within the gas cushion 7 can be conducted into the airbag 5 or into the environment. If a valve is unlocked, an opening of the valve can also be made at a later time, for example when the seat occupant strikes the gas cushion 7. As a result, a controlled escape of the compressed gas from the gas cushion 7 take place precisely when it is necessary, namely when the seat occupant hits the gas cushion 7 in the event of an accident.
  • the gas cushion 7 itself can be flexible and elastic, alternatively it can be moved back via an attachment with elastic bands 15 in the respective starting position when the gas is sucked out of the gas cushion 7 via the activator 8.

Landscapes

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

Abstract

L'invention concerne un dispositif de sécurité pour un siège de véhicule automobile (1) qui présente un rembourrage (3), ledit dispositif comportant un airbag (5) qui est couplé à un générateur de gaz (6), lequel est activé en présence de données de capteur concernant un accident ou l'imminence d'un accident et remplit l'airbag (5) de gaz et le déploie ; et un activateur (8) au moyen duquel un coussin de gaz séparé (7) peut être en outre rempli de gaz de manière répétitive et réversible. Le coussin de gaz (7) est relié à l'airbag (5) par l'intermédiaire d'un élément d'accouplement (9). L'élément d'accouplement (9) ouvre une ouverture de ventilation (11) ou forme une telle ouverture dans le coussin de gaz (7) lorsque l'airbag (5) est déployé. L'invention concerne également un siège de véhicule automobile (1) équipé d'un tel dispositif de sécurité.
PCT/EP2008/007446 2007-09-24 2008-09-11 Siège de véhicule automobile et dispositif de sécurité pour un siège de véhicule automobile Ceased WO2009039962A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007045549.8 2007-09-24
DE102007045549A DE102007045549A1 (de) 2007-09-24 2007-09-24 Kraftfahrzeugsitz sowie Sicherheitseinrichtung für einen Kraftfahrzeugsitz

Publications (1)

Publication Number Publication Date
WO2009039962A1 true WO2009039962A1 (fr) 2009-04-02

Family

ID=40032847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/007446 Ceased WO2009039962A1 (fr) 2007-09-24 2008-09-11 Siège de véhicule automobile et dispositif de sécurité pour un siège de véhicule automobile

Country Status (2)

Country Link
DE (1) DE102007045549A1 (fr)
WO (1) WO2009039962A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12257972B2 (en) * 2020-03-12 2025-03-25 Autoliv Development Ab Side airbag device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012107802A1 (de) 2012-08-24 2014-10-30 Autoliv Development Ab Gassackmodul mit einer außen liegenden dreidimensional aufgebauten Venteinrichtung
DE102024001491B3 (de) * 2024-05-08 2025-06-18 Mercedes-Benz Group AG Verfahren zur Herstellung einer Verbindung zwischen einem Spannband und einem Airbag
DE102024113556A1 (de) * 2024-05-15 2025-11-20 Zf Automotive Germany Gmbh Fahrzeuginsassenrückhaltesystem und Verfahren zum Betrieb eines Fahrzeuginsassenrückhaltesystems

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746387A1 (de) * 1996-10-25 1998-04-30 Honda Motor Co Ltd Airbagvorrichtung
EP1077154A2 (fr) * 1999-08-14 2001-02-21 Volkswagen Aktiengesellschaft Siège de véhicule
WO2001049535A1 (fr) * 2000-01-05 2001-07-12 Autoliv Development Ab Systeme de sac gonflable
DE20316865U1 (de) * 2003-10-30 2004-02-12 Takata-Petri Ag Sicherheitsvorrichtung für einen Kraftfahrzeugsitz
EP1140572B1 (fr) * 1999-10-21 2004-05-19 Volkswagen Aktiengesellschaft Siege pour vehicule automobile
US20060267317A1 (en) * 2005-05-31 2006-11-30 Toyoda Gosei Co., Ltd. Method and structure for protecting occupant
DE102005059997A1 (de) * 2005-12-13 2007-06-14 Autoliv Development Ab Sicherheitseinrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746387A1 (de) * 1996-10-25 1998-04-30 Honda Motor Co Ltd Airbagvorrichtung
EP1077154A2 (fr) * 1999-08-14 2001-02-21 Volkswagen Aktiengesellschaft Siège de véhicule
EP1140572B1 (fr) * 1999-10-21 2004-05-19 Volkswagen Aktiengesellschaft Siege pour vehicule automobile
WO2001049535A1 (fr) * 2000-01-05 2001-07-12 Autoliv Development Ab Systeme de sac gonflable
DE20316865U1 (de) * 2003-10-30 2004-02-12 Takata-Petri Ag Sicherheitsvorrichtung für einen Kraftfahrzeugsitz
US20060267317A1 (en) * 2005-05-31 2006-11-30 Toyoda Gosei Co., Ltd. Method and structure for protecting occupant
DE102005059997A1 (de) * 2005-12-13 2007-06-14 Autoliv Development Ab Sicherheitseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12257972B2 (en) * 2020-03-12 2025-03-25 Autoliv Development Ab Side airbag device

Also Published As

Publication number Publication date
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