FR2875451A1 - Rear seat upholstery unit for motor vehicle, has volume increasing units moving between active position in seat raised position, where support surface zone is in relief and inactive position in folded position, where surface is plane - Google Patents

Rear seat upholstery unit for motor vehicle, has volume increasing units moving between active position in seat raised position, where support surface zone is in relief and inactive position in folded position, where surface is plane Download PDF

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Publication number
FR2875451A1
FR2875451A1 FR0452080A FR0452080A FR2875451A1 FR 2875451 A1 FR2875451 A1 FR 2875451A1 FR 0452080 A FR0452080 A FR 0452080A FR 0452080 A FR0452080 A FR 0452080A FR 2875451 A1 FR2875451 A1 FR 2875451A1
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FR
France
Prior art keywords
seat
backrest
volume
increasing
motor vehicle
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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
Application number
FR0452080A
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French (fr)
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FR2875451B1 (en
Inventor
Emmanuel Bonte
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Centre dEtude et de Recherche pour lAutomobile CERA
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Centre dEtude et de Recherche pour lAutomobile CERA
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Priority to FR0452080A priority Critical patent/FR2875451B1/en
Publication of FR2875451A1 publication Critical patent/FR2875451A1/en
Application granted granted Critical
Publication of FR2875451B1 publication Critical patent/FR2875451B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
    • B60N2/206—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access to a position in which it can be used as a support for objects, e.g. as a tray
    • 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
    • B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
    • B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
    • B60N2/3004—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only
    • B60N2/3009—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only about transversal axis
    • 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
    • B60N2/32—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use
    • B60N2/36—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/914—Hydro-pneumatic adjustments of the shape

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The unit has a foam body (3) with a side forming a support surface (4). The body has volume increasing units (5) to increase volume of a part of the body to give a relief to a lateral zone (6) of the surface. The volume increasing units are movable between an active position in seat raised position, in which the zone is in relief and an inactive position in the seat folded position, in which the surface is plane. An independent claim is also included for a motor vehicle seat comprising a base or a backrest comprising an upholstery unit.

Description

L'invention concerne un élément de garnissage de siège de véhiculeThe invention relates to a vehicle seat upholstery element

automobile, ainsi qu'un siège de véhicule automobile comprenant un tel élément de garnissage.  automobile, and a motor vehicle seat comprising such a lining element.

On connaît des sièges de véhicules automobile dont l'assise et le dossier sont articulés l'un par rapport à l'autre de sorte que le dossier est mobile entre une position relevée dans laquelle le dossier est sensiblement perpendiculaire à l'assise et une position rabattue dans laquelle le dossier est rabattu contre l'assise. i0  Motor vehicle seats are known whose seat and backrest are articulated relative to each other so that the backrest is movable between a raised position in which the backrest is substantially perpendicular to the seat and a position folded in which the backrest is folded against the seat. i0

En position rabattue, le siège doit occuper le moins de place possible afin de libérer un plus grand espace dans l'habitacle du véhicule automobile, notamment dans le cas des sièges arrières qui sont rabattus pour augmenter le volume du compartiment à bagage.  In the folded position, the seat must occupy as little space as possible to release more space in the passenger compartment of the motor vehicle, especially in the case of rear seats that are folded to increase the volume of the luggage compartment.

Il existe des sièges dont le dossier est agencé pour présenter une surface plane continue avec le plancher du compartiment à bagage en position rabattue afin d'offrir un maximum d'espace dans l'habitacle. Dans de tels sièges, les surfaces d'appui du dossier et de l'assise sont sensiblement planes afin que le siège occupe le moins de place possible en position rabattue. Cependant, le confort du siège est alors réduit, les surfaces d'appui de l'assise et du dossier ne présentant pas de zones latérales en relief offrant un maintien latéral pour l'occupant du siège.  There are seats whose backrest is arranged to present a continuous flat surface with the floor of the luggage compartment in the folded position to provide maximum space in the passenger compartment. In such seats, the support surfaces of the backrest and the seat are substantially flat so that the seat occupies the least possible space in the folded position. However, the comfort of the seat is then reduced, the support surfaces of the seat and the backrest having no raised lateral areas providing lateral support for the occupant of the seat.

II existe également des sièges dont les surfaces d'appui de l'assise et du dossier sont pourvues de zones latérales en relief afin d'offrir un maintien latéral à l'occupant du siège, ce qui augmente le confort du siège. Cependant, un tel siège n'est pas compact en position rabattue, les zones en relief empêchant de rabattre le dossier complètement contre l'assise.  There are also seats whose support surfaces of the seat and the backrest are provided with lateral zones in relief to provide lateral support to the occupant of the seat, which increases the comfort of the seat. However, such a seat is not compact in the folded position, the raised areas preventing folding back completely against the seat.

L'invention vise à pallier ces inconvénients en proposant un élément de garnissage de siège de véhicule automobile dont la surface d'appui est sensiblement plane lorsque le siège est en position rabattue et présente des zones en relief lorsque le siège est en position relevée.  The invention aims to overcome these disadvantages by providing a motor vehicle seat padding element whose bearing surface is substantially flat when the seat is in the folded position and has raised areas when the seat is in the raised position.

A cet effet et selon un premier aspect, l'invention concerne un élément de garnissage d'un siège de véhicule automobile comprenant un corps en mousse pourvu d'un revêtement, une face du corps en mousse formant une surface d'appui, le corps en mousse comprenant des moyens d'augmentation du volume d'une partie du corps en mousse afin de donner du relief à une zone de la surface d'appui, lesdits moyens d'augmentation du volume étant mobiles entre une position active, dans laquelle la zone de la surface d'appui est en relief et une position inactive, dans laquelle la surface d'appui est sensiblement io plane.  For this purpose and according to a first aspect, the invention relates to a lining element of a motor vehicle seat comprising a foam body provided with a coating, a face of the foam body forming a bearing surface, the body foam comprising means for increasing the volume of a portion of the foam body to give relief to an area of the bearing surface, said volume increasing means being movable between an active position, wherein the The area of the bearing surface is in relief and an inactive position, in which the bearing surface is substantially plane.

Selon un deuxième aspect, l'invention concerne un siège de véhicule automobile comprenant une assise et un dossier, ladite assise et ledit dossier étant articulés l'un par rapport à l'autre de sorte que le dossier est mobile entre une position relevée dans laquelle le dossier est sensiblement perpendiculaire à l'assise et une position rabattue dans laquelle le dossier est rabattu contre l'assise, au moins l'assise ou le dossier comprenant un élément de garnissage tel que décrit ci-dessus, les moyens d'augmentation du volume étant en position active lorsque le dossier est en position relevée et en position inactive lorsque le dossier est en position rabattue.  According to a second aspect, the invention relates to a motor vehicle seat comprising a seat and a backrest, said seat and said backrest being articulated relative to each other so that the backrest is movable between a raised position in which the back is substantially perpendicular to the seat and a folded position in which the backrest is folded against the seat, at least the seat or the backrest comprising a packing element as described above, the means for increasing the the volume is in the active position when the backrest is in the raised position and in the inactive position when the backrest is in the folded position.

Ainsi, en position rabattue, les surfaces d'appui de l'assise et du dossier sont sensiblement planes, ce qui permet une compacité optimale du siège car le dossier peut être rabattu complètement contre l'assise. En position relevée, les surfaces d'appui comprennent une zone en relief, ce qui permet d'augmenter le confort du siège en offrant un maintien latéral à l'occupant du siège.  Thus, in the folded position, the bearing surfaces of the seat and back are substantially flat, which allows an optimal compactness of the seat because the backrest can be folded completely against the seat. In the raised position, the bearing surfaces comprise a raised area, which increases the comfort of the seat by providing lateral support to the occupant of the seat.

D'autres objets et avantages de l'invention apparaîtront au cours de la description qui suit, faite en référence aux dessins annexés.  Other objects and advantages of the invention will become apparent from the following description, made with reference to the accompanying drawings.

La figure 1 est une représentation schématique en coupe d'un siège de véhicule automobile selon un premier mode de réalisation de l'invention, ledit siège étant en position relevée.  Figure 1 is a schematic sectional representation of a motor vehicle seat according to a first embodiment of the invention, said seat being in the raised position.

La figure 2 est une représentation schématique en coupe du siège de véhicule automobile de la figure 1, ledit siège étant en position rabattue.  Figure 2 is a schematic sectional representation of the motor vehicle seat of Figure 1, said seat being in the folded position.

La figure 3 est une représentation schématique en coupe d'un siège de véhicule 5 automobile selon un deuxième mode de réalisation de l'invention, ledit siège étant en position relevée.  Figure 3 is a schematic sectional representation of an automobile vehicle seat according to a second embodiment of the invention, said seat being in the raised position.

La figure 4 est une représentation schématique en coupe du siège de véhicule automobile de la figure 3, ledit siège étant en position rabattue.  Figure 4 is a schematic sectional representation of the motor vehicle seat of Figure 3, said seat being in the folded position.

La figure 5 est une représentation schématique en coupe d'un siège de véhicule automobile selon un troisième mode de réalisation de l'invention, ledit siège étant en position relevée.  Figure 5 is a schematic sectional representation of a motor vehicle seat according to a third embodiment of the invention, said seat being in the raised position.

La figure 6 est une représentation schématique en coupe du siège de véhicule automobile de la figure 5, ledit siège étant en position rabattue.  Figure 6 is a schematic sectional representation of the motor vehicle seat of Figure 5, said seat being in the folded position.

En références au figures 1 à 6, on décrit un élément de garnissage 1 de siège 2 de véhicule automobile comprenant un corps en mousse 3 pourvu d'un revêtement. Une des faces du corps en mousse 3 forme une surface d'appui 4 pour l'occupant du siège de véhicule automobile.  Referring to Figures 1 to 6, there is described a motor vehicle seat lining element 1 comprising a foam body 3 provided with a coating. One of the faces of the foam body 3 forms a bearing surface 4 for the occupant of the motor vehicle seat.

Le corps en mousse 3 comprend des moyens 5 d'augmentation du volume d'une partie du corps en mousse 3 afin de donner du relief à une zone 6 de la surface d'appui 4. Selon les réalisations représentées sur les figures, les zones 6 à mettre en relief sont au moins une zone latérale de la surface d'appui 4 de sorte à offrir un maintien latéral à l'occupant du siège du véhicule. Par latéral, on entend les zones occupant les bords de l'élément de garnissage 1 et correspondant aux flancs de l'occupant du siège. Selon ces réalisations, les deux zones latérales 6 sont mises en relief.  The foam body 3 comprises means 5 for increasing the volume of a portion of the foam body 3 to give relief to an area 6 of the bearing surface 4. According to the embodiments shown in the figures, the zones 6 to be highlighted are at least a lateral area of the support surface 4 so as to provide lateral support to the occupant of the vehicle seat. By lateral means the zones occupying the edges of the lining element 1 and corresponding to the sides of the occupant of the seat. According to these embodiments, the two lateral zones 6 are highlighted.

Les moyens 5 d'augmentation du volume sont mobiles entre une position active, dans laquelle la zone 6 de la surface d'appui 4 est en relief et une position inactive, dans laquelle la surface d'appui 4 est sensiblement plane. La position i0 active est représentée sur les figures 1, 3 et 5 et la position inactive est représentée sur les figures 2, 4 et 6.  The means 5 for increasing the volume are movable between an active position, in which the zone 6 of the bearing surface 4 is in relief and an inactive position, in which the bearing surface 4 is substantially flat. The active position i0 is shown in Figures 1, 3 and 5 and the inactive position is shown in Figures 2, 4 and 6.

Selon un premier mode de réalisation représenté sur les figures 1 et 2, les moyens 5 d'augmentation du volume comprennent une poche gonflable 7 au moyen d'un fluide. La poche gonflable 7 comprend une première 8 et une deuxième 9 parties en communication fluidique. Par communication fluidique, on entend que le fluide peut circuler entre la première 8 et la deuxième 9 parties. Le fluide est par exemple de l'air, un autre gaz ou un liquide. i0  According to a first embodiment shown in FIGS. 1 and 2, the means 5 for increasing the volume comprise an inflatable bag 7 by means of a fluid. The inflatable bag 7 comprises a first 8 and a second 9 parts in fluid communication. By fluid communication is meant that the fluid can flow between the first 8 and the second 9 parts. The fluid is for example air, another gas or a liquid. i0

La première partie 8 est disposée en regard de la zone 6 à mettre en relief. En position active, la première partie 8 est gonflée de sorte que la surface d'appui 4 est déformée et la zone 6 est mise en relief. En position inactive, la première partie 8 est dégonflée de sorte que la surface d'appui 4 est sensiblement plane.  The first part 8 is arranged opposite the zone 6 to be highlighted. In the active position, the first portion 8 is inflated so that the bearing surface 4 is deformed and the area 6 is highlighted. In the inactive position, the first portion 8 is deflated so that the bearing surface 4 is substantially flat.

La deuxième partie 9 est disposée à la base de l'élément de garnissage 1. Par base, on entend la partie de l'élément de garnissage sur laquelle l'occupant du siège n'est pas en appui. Dans un siège de véhicule automobile, la base de l'élément de garnissage correspond aux parties du dossier et de l'assise qui sont en contact l'une avec l'autre. La deuxième partie 9 est dégonflée en position active et gonflée en position inactive. II est à noter que la deuxième partie 9 est agencée pour ne pas déformer la surface d'appui 4 lorsqu'elle est gonflée.  The second part 9 is disposed at the base of the packing element 1. By base means the part of the packing element on which the occupant of the seat is not supported. In a motor vehicle seat, the base of the lining element corresponds to the parts of the backrest and the seat which are in contact with each other. The second part 9 is deflated in the active position and inflated in the inactive position. It should be noted that the second portion 9 is arranged not to deform the bearing surface 4 when inflated.

Le fonctionnement de la poche gonflable 7 sera décrit ultérieurement.  The operation of the inflatable bag 7 will be described later.

Selon un deuxième mode de réalisation représenté sur les figures 3 et 4, les moyens d'augmentation du volume 5 comprennent une barre rigide 10 dont une partie extrême 11 est disposée en regard de la zone 6 de la surface d'appui 4 à mettre en relief.  According to a second embodiment shown in FIGS. 3 and 4, the volume-increasing means 5 comprise a rigid bar 10, an end portion 11 of which is disposed facing zone 6 of the bearing surface 4 to be placed in position. relief.

Selon ce deuxième mode de réalisation, la partie extrême 11 de la barre 10 est bombée de sorte qu'elle forme une saillie en regard de la zone 6 de la surface d'appui 4 lorsque les moyens 5 d'augmentation du volume sont en position active. Ainsi, la zone 6 est mise en relief.  According to this second embodiment, the end portion 11 of the bar 10 is curved so that it protrudes opposite the zone 6 of the bearing surface 4 when the means 5 of increasing the volume are in position active. Thus, zone 6 is highlighted.

En position inactive, la partie extrême 11 est écartée de la surface d'appui 4 de 5 sorte qu'elle ne forme pas de saillie en regard de la zone de la surface d'appui 4. Ainsi la surface d'appui 4 est sensiblement plane.  In the inactive position, the end portion 11 is spaced apart from the bearing surface 4 so that it does not protrude opposite the area of the bearing surface 4. Thus the bearing surface 4 is substantially plane.

La barre 10 peut être articulée par rapport à une armature du siège de véhicule automobile sur lequel l'élément de garnissage est monté. La barre 10 est ainsi io montée en rotation entre la position active et la position inactive.  The bar 10 may be hinged relative to a frame of the motor vehicle seat on which the lining element is mounted. The bar 10 is thus mounted in rotation between the active position and the inactive position.

Le fonctionnement de la barre 10 sera décrit ultérieurement.  The operation of the bar 10 will be described later.

Selon un troisième mode de réalisation représenté sur les figures 5 et 6, les moyens 5 d'augmentation du volume comprennent une barre 12 déformable élastiquement. Une partie extrême 13 de la barre 12, disposée en regard de la zone 6, est agencée pour être bombée en position active et sensiblement plane en position inactive. Ainsi, en position active, la zone 6 est mise en relief alors que la surface d'appui est sensiblement plane en position inactive.  According to a third embodiment shown in FIGS. 5 and 6, the means 5 for increasing the volume comprise a bar 12 which is elastically deformable. An end portion 13 of the bar 12, disposed facing the zone 6, is arranged to be curved in the active position and substantially flat in the inactive position. Thus, in the active position, the zone 6 is highlighted while the bearing surface is substantially flat in the inactive position.

Afin de bomber la partie extrême 13 de la barre 12, on fixe l'extrémité de la barre 12 dans le corps en mousse 3 à l'opposé de la base de l'élément de garnissage 1. La partie de la barre 12 qui n'est pas disposée en regard de la zone 6 est montée dans une gaine rigide 14. Ainsi par poussée sur la partie extrême non fixée de la barre 12, seule la partie extrême 13 est déformée comme représenté sur la figue 5.  In order to bend the end portion 13 of the bar 12, the end of the bar 12 is fixed in the foam body 3 opposite the base of the packing element 1. The portion of the bar 12 which is not arranged opposite the zone 6 is mounted in a rigid sheath 14. Thus by pushing on the non-fixed end portion of the bar 12, only the end portion 13 is deformed as shown in Fig 5.

En référence aux figures, on décrit à présent un siège de véhicule automobile 2 comprenant une assise 15 et un dossier 16 articulés l'un par rapport à l'autre de sorte que le dossier 16 est mobile entre une position relevée dans laquelle le dossier 16 est sensiblement perpendiculaire à l'assise 15 et une position rabattue dans laquelle le dossier 16 est rabattu contre l'assise 15. La position relevée est représentée sur les figures 1, 3 et 5 et la position rabattue est représentée sur les figures 2, 4 et 6.  Referring to the figures, there is now described a motor vehicle seat 2 comprising a seat 15 and a backrest 16 hinged relative to each other so that the backrest 16 is movable between a raised position in which the backrest 16 is substantially perpendicular to the seat 15 and a folded position in which the backrest 16 is folded against the seat 15. The raised position is shown in Figures 1, 3 and 5 and the folded position is shown in Figures 2, 4 and 6.

L'assise 15 et le dossier 16 comprennent chacun un élément de garnissage 1 tel que décrit ci-dessus. Les moyens 5 d'augmentation du volume sont agencés pour être en position active dans la position relevée et en position inactive dans la position rabattue comme cela sera décrit cidessous.  The seat 15 and the backrest 16 each comprise a lining element 1 as described above. The volume increasing means 5 are arranged to be in the active position in the raised position and in the inactive position in the folded position as will be described below.

Selon le premier mode de réalisation des figures 1 et 2, lorsque le dossier 16 passe en position relevée, la deuxième partie 9 des poches gonflables 7 se trouve comprimée entre l'assise 15 et le dossier 16. Ceci a pour effet de io dégonfler la deuxième partie 9 et d'en chasser le fluide vers la première partie 8 comme représenté par les flèches F1 de la figure 1. La première partie 8 se gonfle, comme indiqué par les flèches FI' de la figure 1 et met ainsi en relief la zone 6. Les moyens 5 d'augmentation du volume sont ainsi en position active.  According to the first embodiment of FIGS. 1 and 2, when the backrest 16 moves to the raised position, the second portion 9 of the inflatable pockets 7 is compressed between the seat 15 and the backrest 16. This has the effect of deflating the second part 9 and to drive the fluid to the first part 8 as shown by the arrows F1 of Figure 1. The first part 8 inflates, as indicated by the arrows FI 'of Figure 1 and thus highlights the zone 6. The means 5 for increasing the volume are thus in the active position.

A l'inverse, lorsque le dossier 16 passe en position rabattue, les zones 6 en relief de l'assise 15 et du dossier 16 appuient l'une sur l'autre comprimant ainsi la première partie 8 de la poche gonflable 7. La première partie 8 se dégonfle et le fluide est chassé vers la deuxième partie 9 comme indiqué par les flèche F2 sur la figure 2. La deuxième partie 9 n'étant plus comprimée entre l'assise 15 et le dossier 16, la deuxième partie 9 se gonfle sans mettre en relief la surface d'appui 4 et les moyens 5 d'augmentation du volume sont ainsi en position inactive.  Conversely, when the backrest 16 moves to the folded position, the zones 6 in relief of the seat 15 and the backrest 16 support one on the other thus compressing the first part 8 of the air bag 7. The first part 8 is deflated and the fluid is driven to the second part 9 as indicated by the arrow F2 in Figure 2. The second part 9 is no longer compressed between the seat 15 and the backrest 16, the second part 9 swells without highlighting the support surface 4 and the volume-increasing means 5 are thus in the inactive position.

Selon le deuxième mode de réalisation des figures 3 et 4, les barres 10 de l'assise 15 et du dossier 16 sont agencées pour coopérer entre elles lorsque le dossier 16 est en position relevée de sorte qu'elles passent en position active lorsqu'elles agissent l'une sur l'autre. A cet effet, on prévoit que la partie extrême qui n'est pas disposée en regard de la zone 6 des barres 10 entrent en contact lorsque le dossier 16 passe en position relevée. Ce contact est prévu pour que les barres 10 effectuent une poussée l'une sur l'autre de sorte qu'elles sont mises en rotation autour de leur articulation et passent en position active, comme indiqué par les flèches F3 de la figure 3.  According to the second embodiment of FIGS. 3 and 4, the bars 10 of the seat 15 and of the backrest 16 are arranged to cooperate with each other when the backrest 16 is in the raised position so that they move into the active position when they act on each other. For this purpose, it is expected that the end portion which is not disposed opposite zone 6 of the bars 10 come into contact when the backrest 16 goes into the raised position. This contact is provided for the bars 10 to urge on each other so that they are rotated about their articulation and move to the active position, as indicated by the arrows F3 of Figure 3.

Lorsque le dossier 16 passe en position rabattue, les barres 10 sont agencées pour passer en position inactive par rotation autour de leur articulation comme indiqué par les flèches F4 de la figure 4. A cet effet, on peut prévoir un moyen de rappel autour de l'articulation amenant les barres 10 en position inactive lorsqu'elles ne coopèrent plus entre elles.  When the backrest 16 moves to the folded position, the bars 10 are arranged to move inactive position by rotation around their articulation as indicated by the arrows F4 of FIG. 4. For this purpose, it is possible to provide a return means around the door. articulation bringing the bars 10 to the inactive position when they no longer cooperate with each other.

Selon le troisième mode de réalisation des figures 5 et 6, les barres 12 sont également agencées pour coopérer entre elles lorsque le dossier 16 est en position relevée. Lorsque le dossier 16 passe en position relevée, la base du io dossier 16 effectue une poussée sur la barre 12 de l'assise ce qui a pour effet de déformer la partie extrême 13 de celle-ci. De même, la base de l'assise 15 effectue une poussée sur la barre 12 du dossier 16, ce qui a pour effet de déformer sa partie extrême 13. Les moyens 5 d'augmentation du volume sont ainsi en position active. Les poussées de l'assise 15 et du dossier 16 sont représentées par les flèches F5 de la figure 5.  According to the third embodiment of Figures 5 and 6, the bars 12 are also arranged to cooperate with each other when the folder 16 is in the raised position. When the backrest 16 moves to the raised position, the base of the backrest 16 pushes on the bar 12 of the seat which has the effect of deforming the end portion 13 thereof. Likewise, the base of the seat 15 pushes on the bar 12 of the backrest 16, which has the effect of deforming its end portion 13. The means 5 of increasing the volume are thus in the active position. The thrusts of the seat 15 and the backrest 16 are represented by the arrows F5 of FIG.

Lorsque le dossier 16 passe en position rabattue, les poussées effectuées par l'assise 15 et le dossier 16 sont relâchées. L'élasticité des barres 12 a tendance à faire disparaître la déformation de la partie extrême 13, comme représenté par les flèches F6 de la figure 6. Les barres 12 deviennent alors sensiblement planes et les moyens 5 d'augmentation du volume sont en position inactive.  When the backrest 16 moves to the folded position, the thrusts made by the seat 15 and the backrest 16 are released. The elasticity of the bars 12 tends to eliminate the deformation of the end portion 13, as represented by the arrows F6 of FIG. 6. The bars 12 then become substantially planar and the volume-increasing means 5 are in the inactive position. .

Comme on peut le constater, le passage de la position active à la position inactive, et inversement, ne nécessite aucun apport d'énergie extérieur ce qui 25 rend les moyens 5 d'augmentation du volume particulièrement économiques.  As can be seen, the transition from the active position to the inactive position, and vice versa, does not require any external energy input, which makes the means of increasing the volume particularly economical.

Claims (10)

s REVENDICATIONS 1. Elément de garnissage d'un siège (2) de véhicule automobile comprenant un corps en mousse (3) pourvu d'un revêtement, une face du corps en mousse (3) formant une surface d'appui (4), ledit élément de garnissage étant caractérisé en ce que le corps en mousse (3) comprend des moyens (5) d'augmentation du volume d'une partie du corps en mousse (3) afin de donner du relief à une zone (6) de la surface d'appui (4), lesdits moyens d'augmentation du volume étant mobiles entre une position active, dans lo laquelle la zone (6) de la surface d'appui (4) est en relief et une position inactive, dans laquelle la surface d'appui (4) est sensiblement plane.  Fitting element for a motor vehicle seat (2) comprising a foam body (3) provided with a coating, a face of the foam body (3) forming a bearing surface (4), said element characterized in that the foam body (3) comprises means (5) for increasing the volume of a portion of the foam body (3) to give relief to an area (6) of the surface support (4), said volume-increasing means being movable between an active position, in which the area (6) of the bearing surface (4) is in relief and an inactive position, in which the surface support (4) is substantially flat. 2. Elément de garnissage selon la revendication 1, caractérisé en ce que les moyens (5) d'augmentation du volume sont agencés pour mettre en relief au moins une zone (6) latérale de la surface d'appui (4) lorsqu'ils sont en position active.  2. Packing element according to claim 1, characterized in that the means (5) for increasing the volume are arranged to expose at least one zone (6) side of the support surface (4) when are in the active position. 3. Elément de garnissage selon la revendication 1 ou 2, caractérisé en ce que les moyens (5) d'augmentation du volume comprennent au moins une poche gonflable (7) au moyen d'un fluide dont une première partie (8) est disposée en regard de la zone (6) de surface d'appui (4) à mettre en relief, ladite première partie étant gonflée en position active et dégonflée en position inactive.  3. Filling element according to claim 1 or 2, characterized in that the means (5) for increasing the volume comprise at least one inflatable bag (7) by means of a fluid, a first portion (8) is disposed facing the region (6) bearing surface (4) to be raised, said first portion being inflated in the active position and deflated in the inactive position. 4. Elément de garnissage selon la revendication 3, caractérisé en ce que la poche gonflable (7) comprend en outre une deuxième partie (9) en communication fluidique avec la première partie (8), ladite deuxième partie étant disposée à l'écart de la zone (6), ladite deuxième partie étant dégonflée en position active et gonflée en position inactive, ladite deuxième partie étant agencée pour ne pas conférer de relief à la surface d'appui (4) lorsqu'elle est gonflée.  4. Packing element according to claim 3, characterized in that the inflatable bag (7) further comprises a second portion (9) in fluid communication with the first portion (8), said second portion being disposed away from the zone (6), said second part being deflated in the active position and inflated in the inactive position, said second part being arranged so as not to give relief to the bearing surface (4) when it is inflated. 5. Elément de garnissage selon la revendication 1 ou 2, caractérisé en ce que les moyens (5) d'augmentation du volume comprennent au moins une barre (10, 12) dont une partie extrême (11, 13) est disposée en regard de la zone (6) de la surface d'appui (4) à mettre en relief, ladite partie extrême formant une saillie en regard de la zone (6) lorsque les moyens (5) d'augmentation du volume sont en position active et ladite partie extrême ne formant pas de saillie en regard de la zone (6) lorsque les moyens (5) d'augmentation du volume sont en position inactive.  5. Packing element according to claim 1 or 2, characterized in that the means (5) for increasing the volume comprise at least one bar (10, 12) of which an end portion (11, 13) is arranged opposite the zone (6) of the bearing surface (4) to be raised, said end portion projecting from the zone (6) when the volume-increasing means (5) are in the active position and said end portion not projecting from the zone (6) when the means (5) for increasing the volume are in the inactive position. 6. Elément de garnissage selon la revendication 5, caractérisé en ce que la partie extrême (11) de la barre (10) disposée en regard de la zone (6) de la io surface d'appui (4) est bombée, ladite barre étant mobile en rotation entre la position active et la position inactive.  6. packing element according to claim 5, characterized in that the end portion (11) of the bar (10) disposed facing the region (6) of the bearing surface (4) is curved, said bar being rotatable between the active position and the inactive position. 7. Elément de garnissage selon la revendication 5, caractérisé en ce que la partie extrême (13) de la barre (12) disposée en regard de la zone (6) est déformable de sorte à être bombée en position active et sensiblement plane en position inactive.  7. Packing element according to claim 5, characterized in that the end portion (13) of the bar (12) disposed opposite the zone (6) is deformable so as to be curved in the active position and substantially flat in position inactive. 8. Siège de véhicule automobile comprenant une assise (15) et un dossier (16), ladite assise et ledit dossier étant articulés l'un par rapport à l'autre de sorte que le dossier (16) est mobile entre une position relevée dans laquelle le dossier (16) est sensiblement perpendiculaire à l'assise (15) et une position rabattue dans laquelle le dossier (16) est rabattu contre l'assise (15), ledit siège étant caractérisé en ce que au moins l'assise (15) ou le dossier (16) comprennent un élément de garnissage (1) selon l'une quelconque des revendications 1 à 7, les moyens (5) d'augmentation du volume étant en position active lorsque le dossier (16) est en position relevée et en position inactive lorsque le dossier (16) est en position rabattue.  8. Motor vehicle seat comprising a seat (15) and a backrest (16), said seat and said backrest being hinged relative to each other so that the backrest (16) is movable between a position raised in which the backrest (16) is substantially perpendicular to the seat (15) and a folded position in which the backrest (16) is folded against the seat (15), said seat being characterized in that at least the seat ( 15) or the back (16) comprise a packing element (1) according to any one of claims 1 to 7, the means (5) for increasing the volume being in the active position when the backrest (16) is in position raised and in the inactive position when the backrest (16) is in the folded position. 9. Siège de véhicule automobile selon la revendication 8 lorsqu'elle dépend de la revendication 4, caractérisé en ce que la deuxième partie (9) de la poche gonflable (7) est disposée à la base de l'assise (15) et du dossier (16) de sorte à être comprimée entre l'assise (15) et le dossier (16) en position relevée de sorte que le fluide passe dans la première partie (8) de la poche 2875451 io gonflable (7), la première partie (8) étant comprimée entre l'assise (15) et le dossier (16) en position rabattue de sorte que le fluide passe dans la deuxième partie (9) de la poche gonflable (7).  9. Motor vehicle seat according to claim 8 when dependent on claim 4, characterized in that the second portion (9) of the inflatable bag (7) is disposed at the base of the seat (15) and the backrest (16) so as to be compressed between the seat (15) and the backrest (16) in the raised position so that the fluid passes into the first portion (8) of the inflatable pocket (7), the first part (8) being compressed between the seat (15) and the backrest (16) in the folded position so that the fluid passes into the second part (9) of the inflatable bag (7). 10. Siège de véhicule automobile selon la revendication 8 lorsqu'elle dépend de la revendication 6 ou 7, caractérisée en ce que les barres (10, 12) de l'élément de garnissage (1) du dossier (16) et de l'assise (15) sont agencées pour coopérer entre elles lorsque le dossier (15) est en position relevée de sorte qu'elles passent en position active lorsqu'elles agissent l'une sur io l'autre, lesdites barres ne coopérant plus entre elles en position rabattue de sorte qu'elles passent en position inactive.  10. Motor vehicle seat according to claim 8 when dependent on claim 6 or 7, characterized in that the bars (10, 12) of the packing element (1) of the backrest (16) and the seat (15) are arranged to cooperate with one another when the backrest (15) is in the raised position so that they move into the active position when they act one on the other, said bars no longer cooperating with one another; position folded so that they move to the inactive position.
FR0452080A 2004-09-17 2004-09-17 FILLING ELEMENT OF A MOTOR VEHICLE SEAT COMPRISING MEANS FOR INCREASING THE VOLUME OF A PART OF ITS FOAMED BODY Expired - Fee Related FR2875451B1 (en)

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FR2899526A1 (en) * 2006-04-10 2007-10-12 Faurecia Sieges Automobile Motor vehicle`s e.g. car, seat, has articulation unit with cam integrated to axle for automatically moving lateral part from deployed position to retracted position in response to movement of seat from usage position to retracted position
WO2008014876A1 (en) * 2006-08-01 2008-02-07 Johnson Controls Gmbh Foldable motor vehicle seat
DE102007008601A1 (en) * 2007-02-19 2008-08-21 Sitech Sitztechnik Gmbh Seat, particularly for motor vehicle or airplane, has resting area of backrest or head rest or seating surface of seat part, which is formed with padding element during transition of seat from operational into non-operational position
FR2916699A1 (en) * 2007-06-04 2008-12-05 Peugeot Citroen Automobiles Sa Seat i.e. driver seat, for motor vehicle, has base and backrest with air cushions that are inflated and vary thickness of base and backrest to raise and to move forward person seated on seat, respectively
WO2010078653A1 (en) * 2009-01-06 2010-07-15 Magna Seating Inc. Inflatable thin seat
DE102009034987A1 (en) 2009-07-28 2011-02-03 GM Global Technology Operations, Inc., Detroit Seat for motor vehicle, has seat part and back rest part that is pivotable on seat part, where hollow spaces are formed which is filled with fluid
DE102011115574A1 (en) 2011-10-11 2013-04-11 Faurecia Autositze Gmbh Motor vehicle seat has seat unit and backrest forward-foldable opposite to seat part from use position to cargo position, where cushion element is formed with fluid-tight cavity at part of seat cushion or backrest cushion
FR2982208A1 (en) * 2011-11-07 2013-05-10 Peugeot Citroen Automobiles Sa Retractable seat i.e. central seat, for car, has base folded against backrest, and volume changing unit consisting of retractable self-inflating foam expanding automatically when returning to normal position of base
CN105882476A (en) * 2015-02-17 2016-08-24 福特全球技术公司 Air-suspended seat surfaces for folding vehicle seats
CN110341568A (en) * 2019-07-23 2019-10-18 北京新能源汽车股份有限公司 Automobile seat, automobile with same and control method of automobile seat
DE102020119769A1 (en) 2020-07-27 2022-01-27 Faurecia Autositze Gmbh Functional device for a vehicle seat and a correspondingly equipped seating system

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DE10061346A1 (en) * 2000-12-05 2002-06-13 Volkswagen Ag Vehicle seat has bearing points for padded seat and backrest parts displaceable by motorised adjusting units and with spring-damper elements supporting seat upper frame on lower frame
WO2002049874A1 (en) * 2000-12-19 2002-06-27 Autoliv Development Ab An accessory for a vehicle seat
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FR2293170A1 (en) * 1974-12-03 1976-07-02 Roussel Henry Charles Folding vehicle seat with inflatable cushions - has foam lining, backrest pivot and locking handle
DE3505047A1 (en) * 1984-12-15 1986-06-26 Kiekert GmbH & Co KG, 5628 Heiligenhaus Rear motor vehicle seat with seat bench, back rest which can be simultaneously used as a loading face, and back rest joint fitting
DE10061346A1 (en) * 2000-12-05 2002-06-13 Volkswagen Ag Vehicle seat has bearing points for padded seat and backrest parts displaceable by motorised adjusting units and with spring-damper elements supporting seat upper frame on lower frame
WO2002049874A1 (en) * 2000-12-19 2002-06-27 Autoliv Development Ab An accessory for a vehicle seat
FR2850551A1 (en) * 2003-01-31 2004-08-06 Cera FOLDABLE SEAT WITH REDUCED SIZE

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2899526A1 (en) * 2006-04-10 2007-10-12 Faurecia Sieges Automobile Motor vehicle`s e.g. car, seat, has articulation unit with cam integrated to axle for automatically moving lateral part from deployed position to retracted position in response to movement of seat from usage position to retracted position
DE102006036121B4 (en) * 2006-08-01 2011-07-21 Johnson Controls GmbH, 51399 Foldable motor vehicle seat
WO2008014876A1 (en) * 2006-08-01 2008-02-07 Johnson Controls Gmbh Foldable motor vehicle seat
DE102007008601A1 (en) * 2007-02-19 2008-08-21 Sitech Sitztechnik Gmbh Seat, particularly for motor vehicle or airplane, has resting area of backrest or head rest or seating surface of seat part, which is formed with padding element during transition of seat from operational into non-operational position
FR2916699A1 (en) * 2007-06-04 2008-12-05 Peugeot Citroen Automobiles Sa Seat i.e. driver seat, for motor vehicle, has base and backrest with air cushions that are inflated and vary thickness of base and backrest to raise and to move forward person seated on seat, respectively
WO2010078653A1 (en) * 2009-01-06 2010-07-15 Magna Seating Inc. Inflatable thin seat
US8944504B2 (en) 2009-01-06 2015-02-03 Magna Seating Inc Inflatable thin seat
DE102009034987A1 (en) 2009-07-28 2011-02-03 GM Global Technology Operations, Inc., Detroit Seat for motor vehicle, has seat part and back rest part that is pivotable on seat part, where hollow spaces are formed which is filled with fluid
DE102011115574A1 (en) 2011-10-11 2013-04-11 Faurecia Autositze Gmbh Motor vehicle seat has seat unit and backrest forward-foldable opposite to seat part from use position to cargo position, where cushion element is formed with fluid-tight cavity at part of seat cushion or backrest cushion
DE102011115574B4 (en) * 2011-10-11 2013-11-28 Faurecia Autositze Gmbh Automotive seat
FR2982208A1 (en) * 2011-11-07 2013-05-10 Peugeot Citroen Automobiles Sa Retractable seat i.e. central seat, for car, has base folded against backrest, and volume changing unit consisting of retractable self-inflating foam expanding automatically when returning to normal position of base
CN105882476A (en) * 2015-02-17 2016-08-24 福特全球技术公司 Air-suspended seat surfaces for folding vehicle seats
CN110341568A (en) * 2019-07-23 2019-10-18 北京新能源汽车股份有限公司 Automobile seat, automobile with same and control method of automobile seat
DE102020119769A1 (en) 2020-07-27 2022-01-27 Faurecia Autositze Gmbh Functional device for a vehicle seat and a correspondingly equipped seating system
US11738675B2 (en) 2020-07-27 2023-08-29 Faurecia Autositze Gmbh Functional apparatus for a vehicle seat, and correspondingly equipped seat system

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