FR2795371A1 - Seat, for vehicle, has parts of any or all of constituent parts of seat produced in visco-elastic foam material, which has defined coefficient of rigidity - Google Patents
Seat, for vehicle, has parts of any or all of constituent parts of seat produced in visco-elastic foam material, which has defined coefficient of rigidity Download PDFInfo
- Publication number
- FR2795371A1 FR2795371A1 FR9908152A FR9908152A FR2795371A1 FR 2795371 A1 FR2795371 A1 FR 2795371A1 FR 9908152 A FR9908152 A FR 9908152A FR 9908152 A FR9908152 A FR 9908152A FR 2795371 A1 FR2795371 A1 FR 2795371A1
- Authority
- FR
- France
- Prior art keywords
- seat
- foam
- motor vehicle
- backrest
- vehicle seat
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
- B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
- B60N2/4221—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the front
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/4249—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash
- B60N2/4256—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash the shape of the seat being specially adapted for a particular purpose or for particular vehicles
- B60N2/4263—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash the shape of the seat being specially adapted for a particular purpose or for particular vehicles with anti-submarining systems
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
SIEGE MUNI <B>D'UNE</B> PARTIE <B>EN MOUSSE</B> VISCOELASTIQUE La présente invention est relative à un siège de véhicule automobile. The present invention relates to a motor vehicle seat.
Plus particulièrement, l'invention est relative aux sièges qui comprennent au moins une partie constitutive dont au moins une portion est réalisée en mousse. More particularly, the invention relates to seats which comprise at least one constituent part of which at least a portion is made of foam.
Lors d'un choc frontal, un passager de tels sièges est retenu par des ceintures de sécurité installées à bord du véhicule et le bassin du passager est retenu par des moyens placés dans la partie avant de ces sièges pour éviter l'effet soumarinage qui consiste en ce que le passager s'enfonce dans le siège tout en glissant vers l'avant du véhicule. During a frontal impact, a passenger of such seats is restrained by seat belts installed on board the vehicle and the passenger's pelvis is restrained by means placed in the front part of these seats to avoid the subjugation effect which consists of in that the passenger sinks into the seat while sliding towards the front of the vehicle.
A cet effet, on connaît, d'après le document WO-A-99 19209, des sièges de véhicule automobile comprenant une assise dont la structure est munie d'inserts métalliques ou de tôles et dont la matelassure comporte une mousse souple superposée sur une mousse rigide. For this purpose, it is known from document WO-A-99 19209, motor vehicle seats comprising a seat whose structure is provided with metal inserts or sheets and whose padding comprises a flexible foam superimposed on a rigid foam.
Toutefois, de tels sièges ne permettent pas d'absorber progressivement l'énergie du bassin au moment de l'impact. En effet, lors d'un choc avant, le bassin acquiert une vitesse relative par rapport au plancher du véhicule qui augmente jusqu'à l'instant de l'impact. Le bassin vient alors en butée contre les moyens anti-soumarinage avec une forte énergie. Ceci provoque la compression de la région lombaire du passager et donc des risques de lésions de cette région. However, such seats do not allow to gradually absorb the energy of the basin at the time of impact. Indeed, during a front impact, the basin acquires a relative speed with respect to the floor of the vehicle which increases until the moment of impact. The basin then comes into abutment against anti-submarine means with high energy. This causes compression of the lumbar region of the passenger and therefore the risk of injury in this region.
L'invention a pour but de remédier aux inconvénients précités en fournissant un siège muni d'au moins une partie comprenant une portion dont la mousse permet d'assurer une décélération continue du passager lors d'un choc du véhicule tout en fournissant un bon confort lors d'une utilisation normale du véhicule. The invention aims to overcome the aforementioned drawbacks by providing a seat provided with at least a portion comprising a portion whose foam ensures a continuous deceleration of the passenger during a collision of the vehicle while providing a comfortable during normal use of the vehicle.
A cet effet, selon l'invention, un siège de véhicule automobile du type précité est essentiellement caractérisé en ce que la mousse est une mousse viscoélastique possédant un coefficient de rigidification R supérieur à 10 environ, pour que ladite portion de mousse soit souple lors d'une utilisation normale du véhicule à bord duquel est placé le siège, et pour que ladite portion de mousse soit rigide lors d'une décélération brutale du véhicule, le coefficient de rigidification R étant défini comme le rapport entre la portance dynamique et la portance quasi statique, la portance étant le rapport entre l'effort de compression à exercer sur la surface de la portion de mousse pour obtenir la déformation de cette portion à 50$ et l'aire de la surface de ladite portion, la portance dynamique étant obtenue pour des vitesses de déformation comprises entre 10 et 200 s-1, et de préférence égales à 100 s-1 et la vitesse de déformation étant le rapport entre d'une part, la vitesse instantanée d'un point de la surface de la portion de mousse et d'autre part, l'épaisseur de la portion de mousse. For this purpose, according to the invention, a motor vehicle seat of the aforementioned type is essentially characterized in that the foam is a viscoelastic foam having a stiffening coefficient R greater than about 10, so that said portion of foam is flexible during a normal use of the vehicle on which the seat is placed, and for said portion of foam to be rigid during a sudden deceleration of the vehicle, the stiffening coefficient R being defined as the ratio between the dynamic lift and the quasi lift static, the lift being the ratio between the compressive force to exert on the surface of the foam portion to obtain the deformation of this portion at $ 50 and the surface area of said portion, the dynamic lift being obtained for deformation rates of between 10 and 200 s -1, and preferably equal to 100 s -1 and the speed of deformation being the ratio between, on the one hand, the instantaneous velocity of a point on the surface of the foam portion and, on the other hand, the thickness of the foam portion.
Ainsi, grâce à ces dispositions, la résistance à la compression de la mousse du siège augmente avec la vitesse de déformation de cette mousse. On obtient ainsi un meilleur couplage entre le passager et le siège. La vitesse du bassin au moment de l'impact est réduite en fonction de la vitesse du véhicule au moment du choc avant. Le passager subit donc des traumatismes moins importants. Par ailleurs, d'autres parties du siège telles que l'appui-tête, le dossier et les renflements latéraux de l'assise et du dossier peuvent être équipés d'une telle mousse. En cas de choc arrière, la vitesse de la tête est alors réduite progressivement, minimisant les lésions de la nuque et dans le cas d'un choc latéral, le passager est protégé sur les côtés. Thus, thanks to these provisions, the compressive strength of the seat foam increases with the speed of deformation of this foam. This results in a better coupling between the passenger and the seat. The speed of the pelvis at the moment of impact is reduced according to the speed of the vehicle at the time of the front impact. The passenger experiences less significant trauma. In addition, other parts of the seat such as the headrest, the backrest and the lateral bulges of the seat and the backrest can be equipped with such a foam. In the event of a rear impact, the speed of the head is then reduced gradually, minimizing neck injuries and in the event of a side impact, the passenger is protected on the sides.
Le siège suivant l'invention peut éventuellement comporter en outre une ou plusieurs des caractéristiques suivantes - le coefficient de rigidification est compris entre 10 et 500 et de préférence égal à 50 ; - la vitesse de déformation en statique est inférieure à 0,1 s-1 environ ; - le siège comportant un dossier supporté par l'assise, ladite portion en mousse viscoélastique est située dans une partie de l'assise éloignée du dossier et s'étend transversalement à l'assise ; - ladite portion en mousse viscoélastique est recouverte d'une mousse de confort souple ; - le siège comportant un dossier supporté par l'assise, ladite portion en mousse viscoélastique occupe tout le volume de la matelassure de l'assise ; - le siège comportant un dossier supporté par une assise, un appui-tête étant porté par le dossier et possédant une face tournée vers un utilisateur, l'appui-tête comprend une portion de mousse viscoélastique ; et - ladite au moins une partie constitutive comprend plusieurs portions possédant chacune une mousse dont le coefficient de rigidification R est différent. The seat according to the invention may optionally further comprise one or more of the following characteristics: the stiffening coefficient is between 10 and 500 and preferably equal to 50; the rate of static deformation is less than about 0.1 s -1; - The seat comprising a back supported by the seat, said viscoelastic foam portion is located in a portion of the seat away from the backrest and extends transversely to the seat; said viscoelastic foam portion is covered with a soft comfort foam; - The seat having a back supported by the seat, said viscoelastic foam portion occupies the entire volume of the padding of the seat; - The seat having a back supported by a seat, a headrest being carried by the backrest and having a face facing a user, the headrest comprises a portion of viscoelastic foam; and said at least one constituent part comprises several portions each having a foam whose stiffening coefficient R is different.
Quatre exemples de réalisation de l'invention vont maintenant être décrits en regard des dessins annexés, sur lesquels - la figure 1 est une vue d'ensemble d'un siège de véhicule automobile muni d'une assise, d'un dossier et d'un appui-tête qui sont équipés d'une matelassure ou d'un coussin en mousse selon la présente invention ; et - les figures 2 à 5 sont respectivement des vues en coupe longitudinale d'un premier, deuxième, troisième et quatrième modes de réalisation de la matelassure de l'assise du siège de la figure 1. Four embodiments of the invention will now be described with reference to the accompanying drawings, in which: - Figure 1 is an overview of a motor vehicle seat with a seat, a folder and a headrest which are equipped with a padding or foam cushion according to the present invention; and - Figures 2 to 5 are respectively longitudinal sectional views of a first, second, third and fourth embodiment of the padding of the seat of the seat of Figure 1.
A la figure 1 est représenté un siège 1 de véhicule automobile qui est constitué, de manière connue en soi, d'une assise 2 soutenant un dossier 3, lui-même surmonté d'un appui-tête 4. In Figure 1 is shown a seat 1 of a motor vehicle which is constituted, in known manner, a seat 2 supporting a backrest 3, itself surmounted by a headrest 4.
Le dossier 3 est monté par exemple à rotation autour de l'axe de rotation A (figures 2 à 5) sur l'assise 2. L'assise 2 est elle-même constituée d'une armature (non représentée) sur laquelle est tendue une nappe de suspension élastique 5. Cette nappe soutient une matelassure 6 elle-même recouverte par un revêtement d'apparence 7 sur lequel est destiné à s'asseoir un passager du véhicule automobile à bord duquel est installé le siège 1. The backrest 3 is mounted for example around the rotation axis A (Figures 2 to 5) on the seat 2. The seat 2 is itself constituted by an armature (not shown) on which is stretched a sheet of elastic suspension 5. This sheet supports a padding 6 itself covered by a coating of appearance 7 on which is intended to sit a passenger of the motor vehicle on which is installed the seat 1.
La matelassure 6 s'étend longitudinalement par rapport à la direction du véhicule entre une extrémité avant 8 éloignée du dossier 3 et une extrémité arrière 9 proche de ce dossier. The padding 6 extends longitudinally with respect to the direction of the vehicle between a front end 8 remote from the backrest 3 and a rear end 9 close to this folder.
Dans le premier mode de réalisation représenté à la figure 2, la matelassure 6 comprend deux portions de mousse 10 et 11 constituées chacune d'un type de mousse. In the first embodiment shown in Figure 2, the padding 6 comprises two foam portions 10 and 11 each consisting of a type of foam.
La portion 10 de la matelassure 6 est située au niveau de l'extrémité avant 8 de l'assise 2 et est enveloppée dans la portion 11 qui constitue le reste du volume de la matelassure 6. The portion 10 of the padding 6 is located at the front end 8 of the seat 2 and is wrapped in the portion 11 which constitutes the rest of the volume of the padding 6.
La portion 11 est réalisée en une mousse souple dite de confort tandis que la portion 10 est constituée d'une mousse viscoélastique selon la présente invention. La portion 11 est celle qui est en contact avec le passager du siège et est une mousse souple, par exemple réalisée en polyuréthanne, de manière à assurer un bon confort à ce passager. The portion 11 is made of a soft foam called comfort while the portion 10 is made of a viscoelastic foam according to the present invention. The portion 11 is the one that is in contact with the seat passenger and is a flexible foam, for example made of polyurethane, so as to ensure comfort for this passenger.
La mousse viscoélastique de la portion 10 se rigidifie en fonction de la vitesse à laquelle elle est comprimée par le passager du siège lors d'un choc du véhicule avec un obstacle extérieur. Elle est ainsi molle en quasi statique, c'est à dire à des vitesses de déformation faibles, et dure à des vitesses atteintes lors d'un impact. The viscoelastic foam of the portion 10 is stiffened according to the speed at which it is compressed by the seat passenger during a collision of the vehicle with an external obstacle. It is thus soft in quasi-static, that is to say at low deformation rates, and lasts at speeds reached during an impact.
Le comportement de la mousse viscoélastique est caractérisé par un coefficient de rigidification R. Ce coefficient est défini comme étant le rapport de la portance dynamique sur la portance statique, la portance étant le rapport entre l'effort à exercer sur la surface d'une portion de la mousse pour obtenir la déformation de cette portion à 50% et l'aire de la surface de cette portion. The behavior of the viscoelastic foam is characterized by a stiffening coefficient R. This coefficient is defined as the ratio of the dynamic lift to the static lift, the lift being the ratio between the effort to be exerted on the surface of a portion foam to obtain the deformation of this portion at 50% and the area of the surface of this portion.
On considère que la portance dynamique est atteinte pour des vitesses de déformation de l'ordre de 100 s-1 et que la portance quasi statique est obtenue pour des vitesses de déformation inférieures à 0,1 s-1 et de préférence voisines de 0,01 s"1, sachant que la vitesse de déformation est le rapport entre la vitesse instantanée d'un point de la surface de la portion de mousse et la l'épaisseur de cette portion. It is considered that the dynamic lift is reached for strain rates of the order of 100 s-1 and that the quasi-static lift is obtained for strain rates of less than 0.1 s-1 and preferably close to 0, 01 s "1, knowing that the rate of deformation is the ratio between the instantaneous speed of a point of the surface of the portion of foam and the thickness of this portion.
La mousse viscoélastique selon la présente invention possède un coefficient de rigidification R supérieur à 10, de préférence compris entre 10 et 500, et de préférence encore égal à 50. Une telle mousse est par exemple de densité voisine de g0 Kg/m3 et est fabriquée par la société "Aero E.A.R. Specialty Composite sTM" sous le nom CONFOR CF- 42 Pink. La viscosité de la mousse de la portion 10 est choisie de sorte que cette mousse soit souple lors d'une utilisation normale du véhicule à bord duquel est placé le siège 1 et devienne de plus en plus rigide lors d'une décélération ou accélération brutale (obtenue lors d'un choc) de ce véhicule. L'effet "anti-soumarinage" du passager est ainsi évité tout en ne provoquant pas une rupture du mouvement du passager dans la matelassure du siège lors du choc. Le passager subit simplement un faible déplacement dont l'accélération est continue, ce qui évite le tassement de la région lombaire. The viscoelastic foam according to the present invention has a stiffening coefficient R greater than 10, preferably between 10 and 500, and more preferably equal to 50. Such a foam is for example of density close to g0 Kg / m3 and is manufactured by the company "Aero EAR Specialty Composite sTM" under the name CONFOR CF-42 Pink. The viscosity of the foam of the portion 10 is chosen so that the foam is flexible during normal use of the vehicle on which the seat 1 is placed and becomes more and more rigid during a deceleration or sudden acceleration ( obtained during a shock) of this vehicle. The "anti-submarine" effect of the passenger is thus avoided while not causing a rupture of the passenger's movement in the padding of the seat during the impact. The passenger simply suffers a small displacement whose acceleration is continuous, which avoids the compression of the lumbar region.
Dans le deuxième mode de réalisation représenté à la figure 3, la portion 10 de mousse selon la présente invention occupe un volume sensiblement supérieur à celui qu'elle occupe dans le premier mode de réalisation. Cette portion est située entre l'extrémité avant 8 et l'extrémité arrière 9 et est encore incorporée dans la portion 11 de mousse souple. Dans le troisième mode de réalisation (figure 4), la portion 10 de mousse occupe toute la partie avant du siège du véhicule correspondant à la partie qui soutient les cuisses du passager et s'étend sur toute l'épaisseur de la matelassure. Dans le quatrième mode de réalisation représenté à la figure 5, la mousse de la portion 10 occupe tout le volume de la matelassure 6. In the second embodiment shown in FIG. 3, the portion 10 of foam according to the present invention occupies a volume substantially greater than that which it occupies in the first embodiment. This portion is located between the front end 8 and the rear end 9 and is still incorporated in the portion 11 of flexible foam. In the third embodiment (Figure 4), the portion 10 of foam occupies the entire front portion of the vehicle seat corresponding to the portion that supports the thighs of the passenger and extends over the entire thickness of the padding. In the fourth embodiment shown in FIG. 5, the foam of the portion 10 occupies the entire volume of the padding 6.
Comme cela est montré figure 1, la mousse viscoélastique selon la présente invention peut également être incorporée à la matelassure du dossier 3, aux renflements latéraux 12,13 de l'assise et du dossier, et au coussin de l'appui-tête 4 pour dissiper l'énergie lors d'un choc latéral et/arrière. As shown in FIG. 1, the viscoelastic foam according to the present invention can also be incorporated in the padding of the backrest 3, in the lateral bulges 12, 13 of the seat and backrest, and in the cushion of the headrest 4 for dissipate energy during a side and / or rear impact.
De plus, plusieurs portions de mousse viscoélastique possédant chacune un coefficient de viscosité R différent peuvent être intégrées dans chacune des parties constitutives du siège.In addition, several portions of viscoelastic foam each having a different coefficient of viscosity R can be integrated into each of the constituent parts of the seat.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9908152A FR2795371B1 (en) | 1999-06-25 | 1999-06-25 | SEAT WITH VISCOELASTIC FOAM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9908152A FR2795371B1 (en) | 1999-06-25 | 1999-06-25 | SEAT WITH VISCOELASTIC FOAM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2795371A1 true FR2795371A1 (en) | 2000-12-29 |
| FR2795371B1 FR2795371B1 (en) | 2001-09-14 |
Family
ID=9547305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9908152A Expired - Fee Related FR2795371B1 (en) | 1999-06-25 | 1999-06-25 | SEAT WITH VISCOELASTIC FOAM |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2795371B1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2864483A1 (en) * | 2003-12-24 | 2005-07-01 | Faurecia Sieges Automobile | VEHICLE SEAT SEAT MATTRESS AND SITTING PROVIDED WITH SUCH A MATTRESS |
| DE102004027437A1 (en) * | 2004-06-04 | 2005-07-28 | Daimlerchrysler Ag | Safety seat, in particular, for vehicles comprises a safety device which is located in the seat cushion, and becomes hard at sufficiently high relative velocities and/or relative accelerations |
| FR2919828A1 (en) * | 2007-08-08 | 2009-02-13 | Peugeot Citroen Automobiles Sa | Insert for e.g. bench seat base, of motor vehicle, has rigid plastic structure, and partitions progressively deforming when passenger suddenly moves towards front during frontal impact to progressively absorb energy acquired by passenger |
| DE102007047749A1 (en) | 2007-10-05 | 2009-04-09 | Volkswagen Ag | Headrest for seat of motor vehicle, has flexible insert for adjusting head rest, and medium expandable during stiffening such that distance between head of passenger and head rest is reduced during rear crash |
| US8308235B2 (en) | 2010-03-11 | 2012-11-13 | Honda Motor Co. | Vehicle seat assembly |
| US8398166B2 (en) | 2010-03-11 | 2013-03-19 | Honda Motor Co., Ltd. | Vehicle seat assembly |
| US8408655B2 (en) | 2010-08-27 | 2013-04-02 | Honda Motor Co., Ltd. | Vehicle seat assembly |
| US8439440B2 (en) | 2010-08-27 | 2013-05-14 | Honda Motor Co., Ltd. | Vehicle seat assembly |
| FR3005910A1 (en) * | 2013-05-24 | 2014-11-28 | Peugeot Citroen Automobiles Sa | VEHICLE SEAT WITH ACTIVE FOAM IN CASE OF LATERAL SHOCK |
| US9980578B2 (en) | 2012-07-27 | 2018-05-29 | Tempur-Pedic Management, Llc | Body support cushion having multiple layers of phase change material |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8025964B2 (en) | 1994-06-03 | 2011-09-27 | Tempur World, Llc | Laminated visco-elastic support |
| US7051389B2 (en) | 2002-05-24 | 2006-05-30 | Tempur World, Llc | Comfort pillow |
| US7155765B2 (en) | 2003-10-14 | 2007-01-02 | Tempur World, Llc | Pillow top for a cushion |
| US7469437B2 (en) | 2005-06-24 | 2008-12-30 | Tempur-Pedic Management, Inc. | Reticulated material body support and method |
| US8656537B2 (en) | 2006-04-20 | 2014-02-25 | Dan Foam Aps | Multi-component pillow and method of manufacturing and assembling same |
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| PATENT ABSTRACTS OF JAPAN vol. 015, no. 332 (C - 0861) 23 August 1991 (1991-08-23) * |
Cited By (11)
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|---|---|---|---|---|
| FR2864483A1 (en) * | 2003-12-24 | 2005-07-01 | Faurecia Sieges Automobile | VEHICLE SEAT SEAT MATTRESS AND SITTING PROVIDED WITH SUCH A MATTRESS |
| DE102004027437A1 (en) * | 2004-06-04 | 2005-07-28 | Daimlerchrysler Ag | Safety seat, in particular, for vehicles comprises a safety device which is located in the seat cushion, and becomes hard at sufficiently high relative velocities and/or relative accelerations |
| FR2919828A1 (en) * | 2007-08-08 | 2009-02-13 | Peugeot Citroen Automobiles Sa | Insert for e.g. bench seat base, of motor vehicle, has rigid plastic structure, and partitions progressively deforming when passenger suddenly moves towards front during frontal impact to progressively absorb energy acquired by passenger |
| DE102007047749A1 (en) | 2007-10-05 | 2009-04-09 | Volkswagen Ag | Headrest for seat of motor vehicle, has flexible insert for adjusting head rest, and medium expandable during stiffening such that distance between head of passenger and head rest is reduced during rear crash |
| US8308235B2 (en) | 2010-03-11 | 2012-11-13 | Honda Motor Co. | Vehicle seat assembly |
| US8398166B2 (en) | 2010-03-11 | 2013-03-19 | Honda Motor Co., Ltd. | Vehicle seat assembly |
| US8408655B2 (en) | 2010-08-27 | 2013-04-02 | Honda Motor Co., Ltd. | Vehicle seat assembly |
| US8439440B2 (en) | 2010-08-27 | 2013-05-14 | Honda Motor Co., Ltd. | Vehicle seat assembly |
| US9980578B2 (en) | 2012-07-27 | 2018-05-29 | Tempur-Pedic Management, Llc | Body support cushion having multiple layers of phase change material |
| US10765228B2 (en) | 2012-07-27 | 2020-09-08 | Tempur World, Llc | Body support cushion having multiple layers of phase change material |
| FR3005910A1 (en) * | 2013-05-24 | 2014-11-28 | Peugeot Citroen Automobiles Sa | VEHICLE SEAT WITH ACTIVE FOAM IN CASE OF LATERAL SHOCK |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2795371B1 (en) | 2001-09-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20090228 |