FR2984247A1 - Seat for car, has base plate that is movable upwards and is arranged interdependent of backrest, and movable rail that is arranged to move back to extreme position so as to allow locking of locking unit after complete retreat of seat - Google Patents

Seat for car, has base plate that is movable upwards and is arranged interdependent of backrest, and movable rail that is arranged to move back to extreme position so as to allow locking of locking unit after complete retreat of seat Download PDF

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Publication number
FR2984247A1
FR2984247A1 FR1161831A FR1161831A FR2984247A1 FR 2984247 A1 FR2984247 A1 FR 2984247A1 FR 1161831 A FR1161831 A FR 1161831A FR 1161831 A FR1161831 A FR 1161831A FR 2984247 A1 FR2984247 A1 FR 2984247A1
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FR
France
Prior art keywords
seat
backrest
rail
movable rail
movable
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
Application number
FR1161831A
Other languages
French (fr)
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FR2984247B1 (en
Inventor
Patrick Brice
Laurent Georges
Alain Carpentier
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Cera TSC
Original Assignee
Centre dEtude et de Recherche pour lAutomobile CERA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Centre dEtude et de Recherche pour lAutomobile CERA filed Critical Centre dEtude et de Recherche pour lAutomobile CERA
Priority to FR1161831A priority Critical patent/FR2984247B1/en
Publication of FR2984247A1 publication Critical patent/FR2984247A1/en
Application granted granted Critical
Publication of FR2984247B1 publication Critical patent/FR2984247B1/en
Active 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • 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
    • B60N2/3013—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 the back-rest being hinged on the vehicle frame
    • 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
    • B60N2/3038—Cushion movements
    • B60N2/3063—Cushion movements by composed movement
    • B60N2/3065—Cushion movements by composed movement in a longitudinal-vertical plane
    • 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
    • B60N2/3088—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link
    • B60N2/309—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link rods
    • 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
    • B60N2/919—Positioning and locking mechanisms
    • B60N2002/948—Positioning and locking mechanisms the actuation of the positioning or locking mechanism for one seat part being dependent on the position of another seat part, e.g. the seats floor lock being unlocked when the back-rest is inclined or the backrest can be tilted only when the seat is in its rear position

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

Abstract

The seat (1) has a backrest (5) that is rotatably mounted between a vertical use position and a horizontal folding position. A seat post or a base upright (7) is rotatably mounted with respect to the backrest along a transverse axis (8). A shoe (12) extends along a fixed rail. A follower (13) is associated with a skate front rod (9). A base plate (4) is movable upwards and is arranged interdependent of the backrest. A movable rail (3) is arranged to move back to an extreme position so as to allow locking of a locking unit after a complete retreat of the seat.

Description

98424 7 1 L'invention concerne un siège de véhicule automobile. Il est connu, notamment du document FR-2 914 241, de réaliser un siège de véhicule automobile comprenant : - un rail fixe destiné à être fixé au sol dudit véhicule, - un rail mobile monté en translation longitudinale sur ledit rail fixe entre une position extrême reculée et une position extrême avancée, - une embase saillante vers le haut et solidaire de l'arrière dudit rail mobile, - un montant de dossier monté en rotation en partie supérieure de ladite embase selon un premier axe transversal, de façon à pouvoir être mobile entre une position sensiblement verticale d'utilisation et une position sensiblement horizontale de rabattement, - un montant d'assise monté en rotation par rapport audit montant de dossier selon un deuxième axe transversal disposé entre le haut dudit montant de dossier et ledit premier axe, - une bielle avant dont une première extrémité est montée en rotation selon un troisième axe transversal à l'avant dudit montant d'assise et dont la deuxième extrémité est montée en rotation selon un quatrième axe transversal à l'avant dudit rail mobile, - un moyen de verrouillage réversible dudit rail mobile par rapport audit rail fixe, ledit moyen de verrouillage étant agencé pour se déverrouiller par rabattement dudit montant de dossier et pour se verrouiller à nouveau lorsque ledit dossier est en position de rabattement, - un moyen de rappel qui est monté solidaire d'une part dudit rail fixe et d'autre part de l'avant du montant d'assise, de manière, lorsque ledit rail mobile est avancé au-delà de ladite position extrême reculée, à provoquer le recul dudit rail mobile par rapport audit rail fixe par rabattement dudit montant de dossier.30 Un tel agencement permet de réaliser un affaissement du siège lors du rabattement du dossier, la face d'envers du dossier formant surface de chargement de bagages. The invention relates to a motor vehicle seat. It is known, particularly from FR-2 914 241, to make a motor vehicle seat comprising: a fixed rail intended to be fixed to the ground of said vehicle, a movable rail mounted in longitudinal translation on said fixed rail between a position remote extreme and advanced extreme position, - a base projecting upwardly and secured to the rear of said movable rail, - a backrest mounted rotatably in the upper portion of said base according to a first transverse axis, so as to be able to be movable between a substantially vertical position of use and a substantially horizontal position of folding, - a seat post rotatably mounted relative to said backrest member according to a second transverse axis disposed between the top of said backrest post and said first axis, a front connecting rod of which a first end is rotatably mounted along a third axis transverse to the front of said seat post and whose second end is rotatably mounted along a fourth axis transverse to the front of said movable rail, reversible locking means of said movable rail relative to said fixed rail, said locking means being arranged to unlock by folding of said backrest and to lock again when said folder is in the folding position, - a return means which is mounted integral on the one hand of said fixed rail and secondly of the front of the seat pillar, so, when said movable rail is advanced beyond said remote extreme position, to cause the recoil of said movable rail relative to said fixed rail by folding said backrest member.30 Such an arrangement allows for a collapse of the seat when folding the backrest, the rear side of the backrest forming the luggage loading surface.

Et le siège peut jouxter le compartiment à bagages du véhicule qui est pourvu d'un plancher de chargement. Afin de bénéficier d'un plancher rallongé après rabattement du dossier, on peut prévoir que la face d'envers du dossier soit inscrite dans le même plan que celui du plancher de chargement. Par ailleurs, il est souhaitable qu'il n'y ait pas de discontinuité entre le plancher de chargement et la face d'envers du dossier. And the seat can adjoin the luggage compartment of the vehicle which is provided with a loading floor. In order to benefit from an extended floor after folding the backrest, it is possible to provide that the backside of the backrest is inscribed in the same plane as that of the loading floor. Furthermore, it is desirable that there is no discontinuity between the loading floor and the back side of the backrest.

Or, dans l'agencement connu, se présente le risque que, lorsque le rail mobile est à distance de la position extrême reculée alors que l'on rabat le dossier, la mise dudit dossier en position de rabattement se fasse avant que ledit rail mobile n'ait atteint ladite position extrême, et le siège se trouve alors verrouillé en position intermédiaire. However, in the known arrangement, there is the risk that, when the movable rail is at a distance from the extreme retracted position while the backrest is folded, putting said folder in the folding position is done before said movable rail has reached the extreme position, and the seat is then locked in the intermediate position.

Il en résulte l'apparition d'un espace entre la face d'envers du dossier et le plancher de chargement, ce qui n'est pas conforme à l'exigence de continuité attendue. This results in the appearance of a space between the backside of the backrest and the loading floor, which does not comply with the expected continuity requirement.

L'invention a pour but de pallier cet inconvénient. A cet effet, l'invention propose un siège de véhicule automobile comprenant : - un rail fixe destiné à être fixé au sol dudit véhicule, - un rail mobile monté en translation longitudinale sur ledit rail fixe entre une position extrême reculée et une position extrême avancée, - une embase saillante vers le haut et solidaire de l'arrière dudit rail mobile, - un montant de dossier monté en rotation en partie supérieure de ladite embase selon un premier axe transversal, de façon à pouvoir être mobile entre une position sensiblement verticale d'utilisation et une position sensiblement horizontale de rabattement, - un montant d'assise monté en rotation par rapport audit montant de dossier selon un deuxième axe transversal disposé entre le haut dudit montant de dossier et ledit premier axe, - une bielle avant dont une première extrémité est montée en rotation selon un troisième axe transversal à l'avant dudit montant d'assise et dont la deuxième extrémité est montée en rotation selon un quatrième axe transversal à l'avant dudit rail mobile, - un moyen de verrouillage réversible dudit rail mobile par rapport audit rail fixe, ledit moyen de verrouillage étant agencé pour se déverrouiller par rabattement dudit montant de dossier et pour se verrouiller à nouveau lorsque ledit dossier est en position de rabattement, - un moyen de rappel qui est monté solidaire d'une part dudit rail fixe et d'autre part de l'avant dudit montant d'assise, de manière, lorsque ledit rail mobile est avancé au-delà de ladite position extrême reculée, à provoquer le recul dudit rail mobile par rapport audit rail fixe par rabattement dudit montant de dossier, ledit siège comprenant en outre : - un patin s'étendant le long dudit rail fixe, - un suiveur de patin associé à ladite bielle avant, ledit patin et ledit suiveur étant respectivement agencés pour empêcher - respectivement permettre - la mise dudit dossier en position de rabattement tant que ledit rail mobile n'a pas atteint - respectivement lorsque ledit rail mobile a atteint - sa position extrême reculée, de manière à ne permettre le verrouillage dudit moyen de verrouillage qu'après recul complet dudit siège. The invention aims to overcome this disadvantage. For this purpose, the invention proposes a motor vehicle seat comprising: - a fixed rail intended to be fixed to the ground of said vehicle, - a movable rail mounted in longitudinal translation on said fixed rail between a remote extreme position and an extreme end position - A base projecting upwards and secured to the rear of said movable rail, - a backrest mounted rotatably in the upper part of said base according to a first transverse axis, so as to be movable between a substantially vertical position d use and a substantially horizontal position of folding, - a seat post rotatably mounted relative to said backrest member according to a second transverse axis disposed between the top of said backrest post and said first axis, - a front rod which a first end is mounted in rotation along a third axis transverse to the front of said seat pillar and whose second end is my rotating in a fourth axis transverse to the front of said movable rail, - a reversible locking means of said movable rail relative to said fixed rail, said locking means being arranged to unlock by folding said backrest and to lock again when said backrest is in the folding position, - a return means which is mounted integral on the one hand with said fixed rail and on the other with the front of said seat post, so, when said movable rail is advanced beyond said retracted extreme position, causing said movable rail to recoil relative to said fixed rail by folding said backrest, said seat further comprising: - a pad extending along said fixed rail, - a follower of pad associated with said front link, said pad and said follower being respectively arranged to prevent - respectively allow - the setting of said folder in the folding position as long as ledi t movable rail has not reached - respectively when said movable rail has reached - its extreme rearward position, so as to allow locking of said locking means only after complete retreat of said seat.

Dans cette description, les termes de positionnement dans l'espace (haut, supérieur, longitudinal, transversal, latéral, avant, arrière, vertical, horizontal, avancé, reculé, ...) sont pris en référence au siège disposé dans le véhicule. In this description, the positioning terms in the space (top, top, longitudinal, transverse, lateral, front, rear, vertical, horizontal, forward, backward, ...) are taken in reference to the seat disposed in the vehicle.

Avec l'agencement proposé, on garantit que le siège a complètement reculé avant d'activer le verrouillage du moyen de verrouillage, ce qui supprime le risque de discontinuité entre la face d'envers du dossier et le plancher de chargement lorsque ledit dossier est rabattu. D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence aux figures jointes dans lesquelles : - la figure 1 est une vue latérale d'un siège selon une réalisation, le rail mobile étant en position intermédiaire entre les positions extrêmes avancée et reculée, le dossier dudit siège étant en position intermédiaire de rabattement comprise entre les positions d'utilisation et de rabattement, - la figure 2 est analogue à la figure 1, le rail mobile étant en position extrême reculée, le dossier dudit siège étant en position de rabattement. En référence aux figures, on décrit un siège 1 de véhicule automobile comprenant : - un rail fixe 2 destiné à être fixé au sol dudit véhicule, - un rail mobile 3 monté en translation longitudinale sur ledit rail fixe entre une position extrême reculée et une position extrême avancée, - une embase 4 saillante vers le haut et solidaire de l'arrière dudit rail mobile, - un montant de dossier 5 monté en rotation en partie supérieure de ladite embase selon un premier axe 6 transversal, de façon à pouvoir être mobile entre une position sensiblement verticale d'utilisation et une position sensiblement horizontale de rabattement, - un montant d'assise 7 monté en rotation par rapport audit montant de dossier selon un deuxième axe 8 transversal disposé entre le haut dudit montant de dossier et ledit premier axe, - une bielle avant 9 dont une première extrémité est montée en rotation selon un troisième axe 10 transversal à l'avant dudit montant d'assise et dont la deuxième extrémité est montée en rotation selon un quatrième axe 11 transversal à l'avant dudit rail mobile, - un moyen de verrouillage réversible, non représenté, dudit rail mobile par rapport audit rail fixe, ledit moyen de verrouillage étant agencé pour se déverrouiller par rabattement dudit montant de dossier et pour se verrouiller à nouveau lorsque ledit dossier est en position de rabattement, - un moyen de rappel, non représenté, qui est monté solidaire d'une part dudit rail fixe et d'autre part de l'avant dudit montant d'assise, de manière, lorsque ledit rail mobile est avancé au-delà de ladite position extrême reculée, à provoquer le recul dudit rail mobile par rapport audit rail fixe par rabattement dudit montant de dossier, ledit siège comprenant en outre : - un patin 12 s'étendant le long dudit rail fixe, - un suiveur 13 de patin associé à ladite bielle avant, ledit patin et ledit suiveur étant respectivement agencés pour empêcher respectivement permettre - la mise dudit dossier en position de rabattement tant que ledit rail mobile n'a pas atteint - respectivement lorsque ledit rail mobile a atteint - sa position extrême reculée, de manière à ne permettre le verrouillage dudit moyen de verrouillage qu'après recul complet dudit siège. Selon la réalisation représentée, le suiveur 13 est sous forme d'un doigt saillant latéralement de la bielle avant 9, la mise du montant de dossier 5 en position de rabattement étant empêchée tant que ledit doigt est en appui sur le patin 12, ce qui empêche la rotation complète de ladite bielle. De façon non représentée, le moyen de rappel comprend une première extrémité fixée au rail fixe 2 et une deuxième extrémité fixée audit rail fixe ou au rail mobile 3, ledit moyen de rappel étant monté solidaire de l'avant du montant d'assise 7 en étant monté en coulissement autour d'un axe solidaire dudit avant du montant d'assise. With the proposed arrangement, it is ensured that the seat has completely receded before activating locking of the locking means, which eliminates the risk of discontinuity between the backside of the backrest and the loading floor when said backrest is folded down. . Other features and advantages of the invention will appear in the description which follows, with reference to the attached figures in which: - Figure 1 is a side view of a seat according to one embodiment, the movable rail being in an intermediate position between the extreme forward and backward positions, the backrest of said seat being in an intermediate position of folding between the positions of use and of folding, - Figure 2 is similar to Figure 1, the movable rail being in extreme remote position, the backrest said seat being in the folding position. With reference to the figures, there is described a seat 1 of a motor vehicle comprising: - a fixed rail 2 intended to be fixed to the ground of said vehicle, - a movable rail 3 mounted in longitudinal translation on said fixed rail between a remote extreme position and a position extreme forward, - a base 4 protruding upwardly and secured to the rear of said movable rail, - an amount of backrest 5 rotatably mounted in the upper part of said base according to a first axis 6 transverse, so as to be movable between a substantially vertical position of use and a substantially horizontal position of folding, - a seat post 7 rotatably mounted relative to said backrest member according to a second transverse axis 8 disposed between the top of said backrest post and said first axis, a front connecting rod 9 whose first end is rotatably mounted along a third axis transverse to the front of said seat post and whose uxième end is rotatably mounted along a fourth axis 11 transverse to the front of said movable rail, - a reversible locking means, not shown, said movable rail relative to said fixed rail, said locking means being arranged to unlock by crimping said backrest amount and to lock again when said folder is in the folding position, - a return means, not shown, which is mounted integral on the one hand of said fixed rail and secondly of the front of said amount seated, so, when said movable rail is advanced beyond said remote extreme position, to cause the recoil of said movable rail relative to said fixed rail by folding said backrest, said seat further comprising: - a pad 12 extending along said fixed rail, - a track follower 13 associated with said front link, said shoe and said follower respectively being arranged to prevent respectively rmettre - setting said folder in the folding position until said movable rail has reached - respectively when said movable rail has reached - its extreme rear position, so as to allow locking of said locking means after complete retreat said seat. According to the embodiment shown, the follower 13 is in the form of a finger protruding laterally from the front connecting rod 9, the setting of the backrest member 5 in the folding position being prevented as long as said finger is resting on the shoe 12, which prevents the complete rotation of said rod. In a manner not shown, the return means comprises a first end fixed to the fixed rail 2 and a second end fixed to said fixed rail or the movable rail 3, said biasing means being mounted integral with the front of the seat pillar 7. being slidably mounted about an axis integral with said front of the seat post.

De façon non représentée, le moyen de rappel est monté coulissant autour du troisième axe 10. Selon une réalisation, le moyen de rappel est élastiquement déformable entre le rail fixe 2 et l'avant du montant d'assise 7. Selon une réalisation, le moyen de rappel est formé d'un sandow. Selon une réalisation, le sandow est sensiblement non tendu lorsque le rail mobile 3 est en position extrême avancée et lorsque le montant de dossier 5 est en position d'utilisation, ceci de manière à permettre un réglage longitudinal du siège 1 sans être entravé par ledit sandow. Selon une réalisation, le sandow est tendu lorsque le rail mobile 3 est en position extrême reculée et lorsque le montant de dossier 5 est en position rabattue, ceci de manière à garantir un retour effectif du rail mobile 3 en position extrême reculée lors du rabattement du montant de dossier 5. Not shown, the return means is slidably mounted around the third axis 10. In one embodiment, the biasing means is elastically deformable between the fixed rail 2 and the front of the seat post 7. According to one embodiment, the means of return is formed of a bungee cord. According to one embodiment, the bungee cord is substantially not tensioned when the movable rail 3 is in the extreme forward position and when the backrest member 5 is in the use position, so as to allow longitudinal adjustment of the seat 1 without being impeded by said sandow. According to one embodiment, the bungee cord is stretched when the movable rail 3 is in extreme retracted position and when the backrest member 5 is in the folded position, so as to ensure an effective return of the movable rail 3 in extreme retracted position during the folding of the amount of file 5.

Claims (8)

REVENDICATIONS1. Siège (1) de véhicule automobile comprenant : - un rail fixe (2) destiné à être fixé au sol dudit véhicule, - un rail mobile (3) monté en translation longitudinale sur ledit rail fixe entre une position extrême reculée et une position extrême avancée, - une embase (4) saillante vers le haut et solidaire de l'arrière dudit rail mobile, - un montant de dossier (5) monté en rotation en partie supérieure de ladite embase selon un premier axe (6) transversal, de façon à pouvoir être mobile entre une position sensiblement verticale d'utilisation et une position sensiblement horizontale de rabattement, - un montant d'assise (7) monté en rotation par rapport audit montant de dossier selon un deuxième axe (8) transversal disposé entre le haut dudit montant de dossier et ledit premier axe, - une bielle avant (9) dont une première extrémité est montée en rotation selon un troisième axe (10) transversal à l'avant dudit montant d'assise et dont la deuxième extrémité est montée en rotation selon un quatrième axe (11) transversal à l'avant dudit rail mobile, - un moyen de verrouillage réversible dudit rail mobile par rapport audit rail fixe, ledit moyen de verrouillage étant agencé pour se déverrouiller par rabattement dudit montant de dossier et pour se verrouiller à nouveau lorsque ledit dossier est en position de rabattement, - un moyen de rappel qui est monté solidaire d'une part dudit rail fixe et d'autre part de l'avant dudit montant d'assise, de manière, lorsque ledit rail mobile est avancé au-delà de ladite position extrême reculée, à provoquer le recul dudit rail mobile par rapport audit rail fixe par rabattement dudit montant de dossier, ledit siège étant caractérisé en ce qu'il comprend en outre : - un patin (12) s'étendant le long dudit rail fixe, - un suiveur (13) de patin associé à ladite bielle avant,ledit patin et ledit suiveur étant respectivement agencés pour empêcher respectivement permettre - la mise dudit dossier en position de rabattement tant que ledit rail mobile n'a pas atteint - respectivement lorsque ledit rail mobile a atteint - sa position extrême reculée, de manière à ne permettre le verrouillage dudit moyen de verrouillage qu'après recul complet dudit siège. REVENDICATIONS1. Seat (1) for a motor vehicle comprising: - a fixed rail (2) intended to be fixed to the ground of said vehicle, - a movable rail (3) mounted in longitudinal translation on said fixed rail between a remote extreme position and an extreme end position - a base (4) protruding upwardly and secured to the rear of said movable rail, - a backrest (5) rotatably mounted in the upper portion of said base according to a first axis (6) transverse, so as to able to be movable between a substantially vertical position of use and a substantially horizontal position of folding, - a seat post (7) rotatably mounted relative to said backrest member according to a second transverse axis (8) disposed between the top of said backrest post and said first axis, - a front connecting rod (9) whose first end is rotatably mounted along a third axis (10) transverse to the front of said seat post and whose second end is t mounted in rotation along a fourth axis (11) transverse to the front of said movable rail, - a reversible locking means of said movable rail relative to said fixed rail, said locking means being arranged to unlock by folding said file amount and to lock again when said backrest is in the folding position, - a return means which is mounted integral on the one hand with said fixed rail and on the other side with the front of said seat post, so, when said movable rail is advanced beyond said retracted extreme position, causing said movable rail to recoil with respect to said fixed rail by folding said backrest post, said seat being characterized in that it further comprises: - a shoe ( 12) extending along said fixed rail, - a track follower (13) associated with said front link, said shoe and said follower respectively being arranged to respectively prevent - the placing of said backrest in the folding position until said movable rail has reached - respectively when said movable rail has reached - its extreme rearward position, so as to allow locking of said locking means only after complete retreat of said seat. 2. Siège selon la revendication 1, caractérisé en ce que le suiveur (13) est sous forme d'un doigt saillant latéralement de la bielle avant (9). 2. Seat according to claim 1, characterized in that the follower (13) is in the form of a finger protruding laterally from the front link (9). 3. Siège selon la revendication 1 ou 2, caractérisé en ce que le moyen de rappel comprend une première extrémité fixée au rail fixe (2) et une deuxième extrémité fixée audit rail fixe ou au rail mobile (3), ledit moyen de rappel étant monté solidaire de l'avant du montant d'assise (7) en étant monté en coulissement autour d'un axe solidaire dudit avant du montant d'assise. 3. Seat according to claim 1 or 2, characterized in that the biasing means comprises a first end fixed to the fixed rail (2) and a second end fixed to said fixed rail or the movable rail (3), said biasing means being mounted integral with the front of the seat pillar (7) being slidably mounted about an axis integral with said front of the seat pillar. 4. Siège selon la revendication 3, caractérisé en ce que le moyen de rappel est monté coulissant autour du troisième axe (10). 4. Seat according to claim 3, characterized in that the biasing means is slidably mounted around the third axis (10). 5. Siège selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le moyen de rappel est élastiquement déformable entre le rail fixe (2) et l'avant du montant d'assise (7). 5. Seat according to any one of claims 1 to 4, characterized in that the biasing means is elastically deformable between the fixed rail (2) and the front of the seat pillar (7). 6. Siège selon la revendication 5, caractérisé en ce que le moyen de rappel est formé d'un sandow. 6. Seat according to claim 5, characterized in that the biasing means is formed of a bungee cord. 7. Siège selon la revendication 6, caractérisé en ce que le sandow est sensiblement non tendu lorsque le rail mobile (3) est en position extrême avancée et lorsque le montant de dossier (5) est en position d'utilisation. 7. Seat according to claim 6, characterized in that the bungee cord is substantially not tensioned when the movable rail (3) is in the extreme forward position and when the backrest (5) is in the use position. 8. Siège selon la revendication 6 ou 7, caractérisé en ce que le sandow est tendu lorsque le rail mobile (3) est en position extrême reculée et lorsque le montant de dossier (5) est en position rabattue. 8. Seat according to claim 6 or 7, characterized in that the bungee is stretched when the movable rail (3) is in the extreme rear position and when the backrest (5) is in the folded position.
FR1161831A 2011-12-16 2011-12-16 SEAT OF MOTOR VEHICLE Active FR2984247B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3042749A1 (en) * 2015-10-27 2017-04-28 Faurecia Sieges D'automobile MOTOR VEHICLE SEAT AND MOTOR VEHICLE COMPRISING SUCH A SEAT
US11453319B2 (en) * 2018-09-12 2022-09-27 Ts Tech Co., Ltd. Conveyance seat with a slide rail including a lower rail and an upper rail

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914241A1 (en) * 2007-03-29 2008-10-03 Cera Seat e.g. rear seat, for motor vehicle, has return unit integrated to fixed rail and front of base side sill for returning mobile rail relative to fixed rail by folding backrest side sill, when mobile rail is advanced above preset position
US20110049958A1 (en) * 2009-08-31 2011-03-03 Hyundai Motor Company Fold-and-dive seat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914241A1 (en) * 2007-03-29 2008-10-03 Cera Seat e.g. rear seat, for motor vehicle, has return unit integrated to fixed rail and front of base side sill for returning mobile rail relative to fixed rail by folding backrest side sill, when mobile rail is advanced above preset position
US20110049958A1 (en) * 2009-08-31 2011-03-03 Hyundai Motor Company Fold-and-dive seat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3042749A1 (en) * 2015-10-27 2017-04-28 Faurecia Sieges D'automobile MOTOR VEHICLE SEAT AND MOTOR VEHICLE COMPRISING SUCH A SEAT
US10106057B2 (en) 2015-10-27 2018-10-23 Faurecia Sièges d'Automobile Seat for motor vehicle and motor vehicle comprising such a seat
US11453319B2 (en) * 2018-09-12 2022-09-27 Ts Tech Co., Ltd. Conveyance seat with a slide rail including a lower rail and an upper rail

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