PatentDe  


Dokumentenidentifikation EP1615805 25.10.2007
EP-Veröffentlichungsnummer 0001615805
Titel AIRBAGANORDNUNG
Anmelder Autoliv Development AB, Vargarda, SE
Erfinder BOSTROM, Ola, Se-441 57 Alingsas, SE;
HALAND, Yngve, S-239 40 Falsterbo, SE
Vertreter derzeit kein Vertreter bestellt
DE-Aktenzeichen 602004008899
Vertragsstaaten AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LI, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR
Sprache des Dokument EN
EP-Anmeldetag 15.04.2004
EP-Aktenzeichen 047275821
WO-Anmeldetag 15.04.2004
PCT-Aktenzeichen PCT/GB2004/001641
WO-Veröffentlichungsnummer 2004094199
WO-Veröffentlichungsdatum 04.11.2004
EP-Offenlegungsdatum 18.01.2006
EP date of grant 12.09.2007
Veröffentlichungstag im Patentblatt 25.10.2007
IPC-Hauptklasse B60R 21/16(2006.01)A, F, I, 20070320, B, H, EP

Beschreibung[en]

THE PRESENT INVENTION relates to an air-bag arrangement, and more particularly relates to an air-bag arrangement intended to provide protection for the occupants of a motor vehicle in the event that a side impact should occur.

When a side impact occurs, from one side of the vehicle, the vehicle is given a very sudden acceleration. The effect is that, due to inertia, occupants of the vehicle tend to move towards the side of the vehicle where the impact occurs.

Typically a vehicle occupant is restrained by a three-point seat-belt. Typically a three-point seat-belt has a lap portion and a diagonal portion, the diagonal portion typically extending from a point adjacent the centre of the vehicle upwardly across the chest or torso of the occupant to a point on the adjacent "B"-Post of the vehicle for a front seat passenger and "C"-Post of the vehicle for a rear seat passenger.

In the case of a side impact for a vehicle occupant who is sitting adjacent the side of the vehicle where the impact occurs, the effect will be that the torso of the occupant will tend to move towards the side of the vehicle where the impact occurs. The shoulder of the occupant will thus be "caught" by the diagonal strap and the occupant will be restrained. However, for a seat occupant sitting on the side of the vehicle furthest from the side impact, the torso of the occupant will tend to move away from the adjacent "B"-Post, and will not be restrained to any substantial extent by the diagonal strap. Thus injuries may arise.

The present invention seeks to provide an improved air-bag arrangement.

US-A-5 499 840 is representative of the closest prior art and discloses an airbag arrangement which includes all the features of the preamble of claim 1.

According to the present invention, there is provided an air-bag arrangement in a motor vehicle to provide protection for the occupant of at least one seat, the or each seat being associated with two air-bag units, one air-bag unit containing an air-bag to be deployed to occupy a space on the inboard side of the seat and the other air-bag unit containing an air-bag to be deployed to occupy a space on the outboard side of the seat, there being a sensor and control arrangement to sense a side impact and to determine which side of the vehicle has been impacted, and to generate actuation signals capable of actuating only the air-bag unit closest to the point of impact.

Preferably, the air-bag is configured to provide protection for the occupants of two said seats arranged adjacent one another, wherein the sensor and control arrangement is configured to generate actuation signals capable of actuating only the air-bag unit associated with the first seat closest to the point of impact, and only the air-bag unit of the second seat closest to the point of impact.

Preferably, at least one seat is provided with a sensor to sense an occupant in the seat, the sensor enabling actuation of the air-bag units associated with that seat in response to the actuation signal from the sensor and control unit.

Advantageously, at least one air-bag unit for the or each seat is mounted in the back-rest of the seat.

Conveniently, said one unit in the or each seat is on the inboard side of the seat.

Preferably, both air-bag units associated with the or each seat are mounted in the back-rest of the seat.

Advantageously, at least one air-bag unit associated with the or each seat is mounted in an adjacent pillar of the motor vehicle.

Conveniently, the or each said seat is provided with a three-point safety-belt.

Preferably, the or each safety-belt is provided with a pretensioner.

Advantageously, the inboard side of the or each seat is associated with a support element, the support element being configured to extend inboard of the inflated inboard air-bag so as to provide lateral support to at least part of the inflated air-bag.

Conveniently, the support element is mounted in or on the same seat as the inboard air-bag that it supports.

Preferably, said support element is moveable upon actuation of the air-bag on the inboard side of the seat, from an initial position to an operative position, the airbag being configured to extend to an operative position, the support element being configured to extend inboard of the inflated air-bag when in said operative position.

Conveniently said support element is resiliently deformable and configured, when in said operative position, to yield under a force exerted thereon by the weight of an occupant of the seat in a crash, thereby absorbing energy.

Preferably said support element is configured to move from said initial position to said operative position in a generally forwards direction relative to said back-rest.

In order that the invention may be more readily understood, and so that further features thereof may be appreciated, embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings in which:

  • FIGURE 1 is a diagrammatic view illustrating two adjacent occupants of a vehicle,
  • FIGURE 2 is a view of a first embodiment of the invention showing air-bag units mounted in adjacent seats in a motor vehicle,
  • FIGURE 3 is a view of a modified embodiment of the invention illustrating air-bag units mounted in the seats of the vehicle, and mounted in the vehicle itself, with the air-bags being shown in the inflated condition,
  • FIGURE 4 is a side view of one of the vehicle seats illustrated in Figure 2, illustrating a deployed air-bag with an associated element.

Referring initially to Figure 1 of the accompanying drawings, two occupants 1, 2 are illustrated seated in the front seats of a motor vehicle. The first occupant 1 is restrained by a three-point safety-belt 3 which includes a lap strap 4 and a diagonal chest or torso strap 5 which extends to an anchoring point, typically in the form of a pillar-loop adjuster, mounted on the adjacent B-Post 6 of the vehicle. Similarly the second occupant, 2 is restrained by a seat-belt 7 which includes a lap strap 8, and a diagonal strap 9 which extends across the chest or torso of the occupant to an anchoring point, again typically in the form of a pillar-loop adjuster, provided on opposite the "B"-Post 10 of the vehicle.

It is to be appreciated that if the vehicle is involved in a side impact, as indicated by the arrow I, which might be caused by another vehicle hitting the side of the vehicle in question adjacent the first occupant 1, the vehicle will be given a very substantial sideways acceleration. The effect will be that, due to inertia, the occupant 1 will tend to move towards the adjacent "B"-Post 6. The occupant 1 will be restrained by the diagonal belt portion 5. However, the second occupant 2 will also move towards the "B"-Post 6 adjacent the first occupant 1. The second occupant 2 will thus not be restrained effectively by his or her seat-belt.

Referring now to Figure 2, two vehicle seats 11, 12 are shown schematically. The seat 11 has a squab 13, a back-rest 14 and a head-rest 15. In the outboard side of the seat-back there is provided an air-bag unit 15. The air-bag unit 15 is such that, on deployment of the air-bag, the air-bag itself extends outwardly from the back-rest and forwardly so that the main part of the air-bag lies adjacent a chest or torso of the seat occupant. Air-bags of this type are known per se. Mounted on the inboard side of the seat is a second air-bag unit 16. Again this air-bag unit is equivalent to the air-bag unit 15.

The adjacent seat 12 is of a similar design having a squab 17, a back-rest (18) and a head-rest 19, and having two air-bag units 20, 21 of the type discussed above.

The seat 11 is for use by the driver of the vehicle, and the seat 12 is for use by a front seat passenger. The seat 12 is provided with a sensor 22 to sense whether the seat is occupied or not. An impact sensor and control unit 23 is provided to sense a side impact and to deploy the air-bags appropriately.

Referring now to Figure 3, a modified embodiment of the invention is illustrated. In this embodiment of the invention the outboard air-bag units 15 and 20 are not mounted in the back-rests of the appropriate seats, but instead are mounted in the adjacent "B"-Posts of the vehicle. In all other respects the embodiment of Figure 3 is the same as the embodiment of Figure 2. Referring to Figure 3, it is to be understood that the vehicle illustrated has been subjected to a side impact on the driver's side of the vehicle, adjacent the seat 11. The impact is indicated by the arrow I, as in Figure 1.

As a consequence of the sensed side impact, the sensor and control unit 23 has only deployed the air-bag on the outboard side of the driver's seat 11, that is to say the air-bag in the air-bag unit 15 and not the air-bag of the air-bag unit 16 on the inboard side of the driver's seat 11. This air-bag thus provides a protective cushion located between the driver of the vehicle and the impact.

As shown in Figure 3, the sensor 22 sensed that the seat 12 is occupied, and consequently has caused only the inboard air-bag unit 21, and not the outboard air-bag unit 20, to be actuated so that an air-bag is provided between the second seat occupant and the side of the vehicle where the impact is occurring. The occupant of the seat 12 will therefore be restrained from moving towards the "B"-Post 6 by means of the inflated air-bag from the air-bag unit 21 and, should any "rebound" occur will be restrained from moving towards the "B"-Post 10 by the three-point seat-belt 7 as shown in Figure 1.

It is therefore to be appreciated that not all of the air-bags are deployed during a side impact, but only the air-bag of each seat which is located between an occupant of the respective seat and the impact, i.e. those air-bags which act to protect the occupants of the vehicle from the impact.

It is to be understood that if the sensor 22 did not sense that the seat 12 was occupied, or only sensed that the seat was occupied by a child seat, then the air-bag unit 21 would not be actuated by the sensor and control unit 23.

Of course, if the impact had occurred in the opposite sense, that is to say on the side of the vehicle adjacent the seat 12, then the air-bag units 16 and 20 would be deployed, again assuming that both seats were occupied.

Whilst the invention has been described with reference to two specific embodiments, it is to be appreciated that many modifications may be effected. The air-bag units associated with each seat may take many different designs. Whilst reference has been made to air-bag units mounted in the seat back and air-bag units mounted in the adjacent "B"-Pillar, it is to be appreciated that one of the air-bag units could be in the form of an inflatable curtain. Such an inflatable curtain, when inflated, occupies space between a seat occupant and the adjacent side of the vehicle, but, most importantly, occupies space immediately adjacent the seat to provide protection for the occupant.

Whilst reference has been made to a sensor 22 for sensing whether the seat 12 is occupied or not, any form of sensor may be utilised. Figures 2 and 3 illustrate a sensor mounted in the squab of the seat. However, an optical sensor or some other remote sensor such as a radar sensor may be utilised.

In certain embodiments of the invention it has been found beneficial to pretension the safety-belt of the seat occupant who is seated furthest from the side impact. Thus, in a preferred embodiment of the invention, three-point seat-belts are provided. Figure 3 shows part of the three-point seat-belt 7 described primarily with reference to Figure 1, in phantom, showing how the seat-belt 7 is provided with a retractor unit 24. The retractor unit 24 incorporates a pretensioner. Thus, during an impact situation, the sensor and control unit 23 may actuate the pretensioner in the retractor 24, and also may actuate a pretensioner at a corresponding retractor provided for the seat-belt 3 associated with the seat 11. It may be preferable for both seat-belts to be pretensioned in a side impact situation, but it has been found most preferable and most important for the seat-belt of the seat remote from the point of impact to be pretensioned.

If a child seat is detected on the seat, the sensor and control unit 23 may, in a side impact, actuate the appropriate pretensioner, thus tensioning the safety-belt that is holding the child seat in position, whilst not actuating the relevant air-bag unit.

Figure 4 illustrates the vehicle seat 12 of Figures 2 and 3, with the inboard air-bag unit 21 having been actuated so that the air-bag 21A has been inflated.

As illustrated in Figure 4, the inboard air-bag unit 21 of the vehicle seat 12 is provided with a support element 25 which is shown in an actuated condition in which it extends forwardly from the back-rest 18, on the inboard side of the inflated air-bag 21A such that the air-bag 21A extends between the support element 25 and the thorax of the seat occupant 2. The support element 25, in this deployed condition, serves to provide lateral support to the inflated air-bag 21A so as to hold it in a position effective to provide lateral protection to the thorax of the seat occupant 2 in the event of a side impact. It has been found desirable to provide this support element 25 because otherwise, the deployed inboard air-bag 21 may not provide adequate support to the seat occupant 2 in the absence of any other vehicle structure, or an adjacent inflated air-bag.

The support element 25 is, as illustrated above, illustrated in Figure 4 in an operative, deployed position. However, prior to actuation of the air-bag 21A, the support element 25 adopts an initial position in which it is allocated substantially within the back-rest 18. Upon actuation of the air-bag 21A, the support element 25 is configured to move from its initial position within the back-rest 18 to the deployed position illustrated in Figure 4, for example in a generally forwards direction relative to the back-rest 18. In a preferred arrangement, the support element 25 is resiliently deformable and is configured, when in its deployed position, to yield under a force exerted on it under the weight of the occupant 2 of the seat 12 in a crash, so as to absorb energy.

Of course, it is to be appreciated that the other vehicle seat 11, is also preferably provided with a support element similar to that described above, in order to provide lateral support to the inboard air-bag of that seat.

It is also to be appreciated that the support element could take other convenient forms such as, for example, a frame extending forwardly from the backrest of the seat, or possibly as at least part of a forwardly extending arm rest. It is not essential for the support element to move forwardly and indeed the support element could be permanently secured in its operative position. It is further to be appreciated that the support element need not be mounted to the same seat as the inboard air-bag which it supports, but may be associated with the inboard air-bag by being mounted to the adjacent seat or part of the structure of the vehicle.

In the present Specification "comprises" means "includes or consists of" and "comprising" means "including or consisting of".

The invention is defined by the appended claims only.


Anspruch[de]
Airbaganordnung in einem Kraftfahrzeug zum Schutz des Insassen (1, 2) auf mindestens einem Sitz (11, 12), wobei der oder jeder Sitz (11, 12) mit zwei Airbageinheiten (15, 16; 20, 21) verbunden ist, wobei eine Airbageinheit (16, 21) einen Airbag enthält, der sich entfaltet, um einen Raum an der inneren Seite des Sitzes einzunehmen, und die andere Airbageinheit (15, 20) einen Airbag enthält, der sich entfaltet, um einen Raum an der äußeren Seite des Sitzes einzunehmen, und wobei eine Sensor- und Steueranordnung (23) vorhanden ist, um den Seitenaufprall zu sensieren und zu bestimmen, welche Seite des Fahrzeugs vom Aufprall getroffen wurde, dadurch gekennzeichnet, dass die Sensor- und Steueranordnung (23) Auslösesignale erzeugt, die in der Lage sind, nur die dem Aufprallpunkt am nächsten liegende Airbageinheit auszulösen. Airbaganordnung nach Anspruch 1, die konfiguriert ist, die Insassen (1, 2) von zwei benachbart angeordneten Sitzen (11, 12) zu schützen, wobei die Sensor- und Steuereinheit (23) so konfiguriert ist, dass sie Auslösesignale erzeugt, die in der Lage sind, nur die mit dem ersten Sitz (11) verbundene Airbageinheit, die dem Aufprallpunkt am nächsten liegt, sowie nur die mit dem zweiten Sitz (12) verbundene Airbageinheit, die dem Aufprallpunkt am nächsten liegt, auszulösen. Anordnung nach Anspruch 1 oder 2, bei welcher mindestens ein Sitz (11, 12) mit einem Sensor (22) versehen ist, um einen Insassen (1, 2) auf dem Sitz (11, 12) zu sensieren, wobei der Sensor (22) die Auslösung der mit diesem Sitz verbundenen Airbageinheiten in Reaktion auf das Auslösesignal der Sensor- und Steueranordnung (23) ermöglicht. Anordnung nach einem der vorhergehenden Ansprüche, bei welcher mindestens eine Airbageinheit (15, 16; 20, 21) des oder jeden Sitzes (11, 12) in der Rückenlehne (14, 18) des Sitzes montiert ist. Anordnung nach Anspruch 4, bei welcher sich die eine Einheit (15, 16; 20, 21) des oder jeden Sitzes (11, 12) auf der inneren Seite des Sitzes befindet. Anordnung nach einem der vorhergehenden Ansprüche, bei welcher beide mit dem oder jedem Sitz (11, 12) verbundenen Airbageinheiten (15, 16; 20, 21) in der Rückenlehne (14, 18) des Sitzes montiert sind. Anordnung nach einem der Ansprüche 1 bis 5, bei welcher mindestens eine mit dem oder jedem Sitz (11, 12) verbundene Airbageinheit (15, 20) an einer benachbarten Säule (6, 10) des Fahrzeugs montiert ist. Anordnung nach einem der vorhergehenden Ansprüche, bei welcher der oder jeder Sitz (11, 12) mit einem Drei-Punkt-Sicherheitsgurt (3, 7) ausgestattet ist. Anordnung nach Anspruch 8, bei welcher der oder jeder Sicherheitsgurt (3, 7) mit einem Gurtstraffer ausgestattet ist. Anordnung nach einem der vorhergehenden Ansprüche, bei welcher die innere Seite des oder jeden Sitzes (11, 12) mit einem Stützelement (25) verbunden ist, wobei das Stützelement (25) so konfiguriert ist, dass es sich innen am aufgeblasenen Airbag (21a) erstreckt, um mindestens einem Teil des aufgeblasenen Airbags (21a) einen Seitenschutz bereitzustellen. Anordnung nach Anspruch 10, bei welcher das Stützelement (25) in oder auf dem selben Sitz (11, 12) wie der innere Airbag, den es stützt, montiert ist. Anordnung nach Anspruch 10 oder 11, bei welcher das Stützelement (25) nach Auslösen des Airbag auf der inneren Seite des Sitzes (11, 12) von einer Ausgangsposition in eine Betriebsposition bewegbar ist, wobei der Airbag so konfiguriert ist, dass er eine Betriebsposition einnimmt, und das Stützelement (25) so konfiguriert ist, dass es sich in der Betriebsposition innen am aufgeblasenen Airbag erstreckt. Anordnung nach Anspruch 12, bei welcher das Stützelement (25) elastisch verformbar ist und so konfiguriert ist, dass es in der Betriebsposition einer bei einem Crash durch das Gewicht eines Insassen (1, 2) des Sitzes (11, 12) darauf wirkenden Kraft nachgibt und dadurch Energie absorbiert. Anordnung nach Anspruch 12 oder 13, bei welcher das Stützelement (25) so konfiguriert ist, dass es sich bezogen auf die Rückenlehne (14, 18) von der Ausgangsposition in die Betriebsposition in einer allgemeinen Vorwärtsrichtung bewegt.
Anspruch[en]
An air-bag arrangement in a motor vehicle to provide protection for the occupant (1, 2) of at least one seat (11, 12), the or each seat (11, 12) being associated with two air-bag units (15, 16; 20, 21), one air-bag unit (16, 21) containing an air-bag to be deployed to occupy a space on the inboard side of the seat and the other air-bag unit (15, 20) containing an air-bag to be deployed to occupy a space on the outboard side of the seat, there being a sensor and control arrangement (23) to sense a side impact and to determine which side of the vehicle has been impacted characterized in that said sensor and control arrangement (23) generates actuation signals capable of actuating only the air-bag unit closest to the point of impact. An air-bag arrangement according to claim 1, configured to provide protection for the occupants (1, 2) of two said seats (11, 12) arranged adjacent one another, wherein the sensor and control arrangement (23) is configured to generate actuation signals capable of actuating only the air-bag unit associated with the first seat (11) closest to the point of impact, and only the air-bag unit of the second seat (12) closest to the point of impact. An arrangement according to Claim 1 or Claim 2 wherein at least one seat (11, 12) is provided with a sensor (22) to sense an occupant (1, 2) in the seat (11, 12), the sensor (22) enabling actuation of the air-bag units associated with that seat in response to the actuation signal from the sensor and control unit (23). An arrangement according to any preceding Claim wherein at least one air-bag unit (15, 16; 20, 21) for the or each seat (11, 12) is mounted in the back-rest (14, 18) of e seat. An arrangement according to Claim 4 wherein the said one unit (15, 16; 20, 21) in the or each seat (11, 12) is on the inboard side of the seat. An arrangement according to any one of the preceding Claims wherein both air-bag units (15, 16; 20, 21) associated with the or each seat (11, 12) are mounted in the back-rest (14, 18) of the seat. An arrangement according to any one of Claims 1 to 5 wherein at least one air-bag unit (15, 20) associated with the or each seat (11, 12) is mounted in an adjacent pillar (6, 10) of the motor vehicle. An arrangement according to any one of the preceding Claims wherein the or each said seat (11, 12) is provided with a three-point safety-belt (3, 7). An arrangement according to Claim 8 wherein the or each safety-belt (3, 7) is provided with a pretensioner. An arrangement according to any preceding Claim, wherein the inboard side of the or each seat (11, 12) is associated with a support element (25), the support element (25) being configured to extend inboard of the inflated inboard air-bag (21a) so as to provide lateral support to at least part of the inflated air-bag (21a). An arrangement according to Claim 10, wherein the support element (25) is mounted in or on the same seat (11, 12) as the inboard air-bag that it supports. An arrangement according to Claim 10 or Claim 11, wherein said support element (25) is moveable upon actuation of the air-bag on the inboard side of the seat (11, 12), from an initial position to an operative position, the airbag being configured to extend to an operative position, the support element (25) being configured to extend inboard of the inflated airbag when in said operative position. An arrangement according to Claim 12, wherein said support element (25) is resiliently deformable and configured when in said operative position, to yield under a force exerted thereon by the weight of an occupant (1, 2) of the seat (11, 12) in a crash, thereby absorbing energy. An arrangement according to Claim 12 or Claim 13, wherein said support element (25) is configured to move from said initial position to said operative position in a generally forwards direction relative to said back-rest (14, 18).
Anspruch[fr]
Agencement de coussin d'air dans un véhicule à moteur destiné à assurer la protection de l'occupant (1, 2) d'au moins un siège (11, 12) du ou de chaque siège (11, 12) associé à deux unités de coussin d'air (15, 16 ; 20, 21), une unité de coussin d'air (16, 21) contenant un coussin d'air devant se déployer pour occuper un espace dans le côté intérieur du siège et l'autre unité de coussin d'air (15, 20) contenant un coussin d'air devant se déployer pour occuper un espace du côté extérieur du siège, un agencement de capteur et de commande (23) étant prévu pour détecter un impact latéral et pour déterminer quel côté du véhicule a reçu l'impact, caractérisé en ce que ledit agencement de capteur et de commande (23) génère des signaux d'actionnement capables d'actionner uniquement l'unité de coussin d'air la plus proche du point d'impact. Agencement de coussin d'air selon la revendication 1, configuré pour assurer la protection des occupants (1, 2) des deux dits sièges (11, 12) agencés adjacents l'un à l'autre, dans lequel l'agencement de capteur et de commande (23) est configuré pour générer des signaux d'actionnement capables d'actionner uniquement l'unité de coussin d'air associée au premier siège (11) la plus proche du point d'impact, et uniquement l'unité de coussin d'air du second siège (12) la plus proche du point d'impact. Agencement selon la revendication 1 ou la revendication 2, dans lequel au moins un siège (11, 12) est équipé d'un capteur (22) pour détecter un occupant (1, 2) dans le siège (11, 12), le capteur (22) permettant l'actionnement des unités de coussin d'air associées à ce siège en réponse au signal d'actionnement provenant de l'unité de capteur et de commande (23). Agencement selon l'une quelconque des revendications précédentes, dans lequel au moins une unité de coussin d'air (15, 16 ; 20, 21) pour le ou chaque siège (11, 12) est montée dans le dossier (14, 18) du siège. Agencement selon la revendication 4, dans lequel ladite unité (15, 16 ; 20, 21) dans le ou chaque siège (11, 12) se trouve sur le côté intérieur du siège. Agencement selon l'une quelconque des revendications précédentes, dans lequel les deux unités de coussin d'air (15, 16 ; 20, 21) associées au ou à chaque siège (11, 12) sont montées dans le dossier (14, 18) du siège. Agencement selon l'une quelconque des revendications 1 à 5, dans lequel au moins une unité de coussin d'air (15, 20) associée au ou à chaque siège (11, 12) est montée dans un montant adjacent (6, 10) du véhicule à moteur. Agencement selon l'une quelconque des revendications précédentes, dans lequel chaque ou ledit siège (11, 12) est équipé d'une ceinture de sécurité à trois points (3, 7). Agencement selon la revendication 8, dans lequel la ou chaque ceinture de sécurité (3, 7) est dotée d'un pré-tendeur. Agencement selon l'une quelconque des revendications précédentes, dans lequel le côté intérieur du ou de chaque siège (11, 12) est associé à un élément de support (25), l'élément de support (25) étant configuré pour s'étendre l'intérieur du coussin d'air intérieur gonflé (21a) de manière à assurer un support latéral à au moins une partie du coussin d'air gonflé (21a). Agencement selon la revendication 10, dans lequel l'élément de support (25) est monté dans ou sur le même siège (11, 12) que le coussin d'air intérieur qu'il supporte. Agencement selon la revendication 10 ou la revendication 11, dans lequel ledit élément de support (25) est mobile au moment de l'actionnement du coussin d'air sur le côté intérieur de siège (11, 12), d'une position initiale à une position de fonctionnement, le coussin d'air étant configuré pour s'étendre vers une position de fonctionnement, l'élément de support (25) étant configuré pour s'étendre vers l'intérieur du coussin d'air gonflé lorsqu'il se trouve dans ladite position de fonctionnement. Agencement selon la revendication 12, dans lequel ledit élément de support (25) est déformable élastiquement et configuré, lorsqu'il se trouve dans ladite position de fonctionnement, pour se déployer sous l'effet d'une force exercée sur lui par le poids d'un occupant (1, 2) du siège (11, 12) lors d'un accident, absorbant ainsi l'énergie. Agencement selon la revendication 12 ou la revendication 13, dans lequel ledit élément de support (25) est configuré pour se déplacer de ladite position initiale à ladite position de fonctionnement dans une direction généralement vers l'avant par rapport audit dossier (14, 18).






IPC
A Täglicher Lebensbedarf
B Arbeitsverfahren; Transportieren
C Chemie; Hüttenwesen
D Textilien; Papier
E Bauwesen; Erdbohren; Bergbau
F Maschinenbau; Beleuchtung; Heizung; Waffen; Sprengen
G Physik
H Elektrotechnik

Anmelder
Datum

Patentrecherche

Patent Zeichnungen (PDF)

Copyright © 2008 Patent-De Alle Rechte vorbehalten. eMail: info@patent-de.com