FR2892355A1 - Seat assembly for motor vehicle, has cam cooperated with cam follower to set locking unit in locking position when backrest is folded up, unlock unit in intermediate position and set unit in locking position when backrest is folded down - Google Patents

Seat assembly for motor vehicle, has cam cooperated with cam follower to set locking unit in locking position when backrest is folded up, unlock unit in intermediate position and set unit in locking position when backrest is folded down Download PDF

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Publication number
FR2892355A1
FR2892355A1 FR0553245A FR0553245A FR2892355A1 FR 2892355 A1 FR2892355 A1 FR 2892355A1 FR 0553245 A FR0553245 A FR 0553245A FR 0553245 A FR0553245 A FR 0553245A FR 2892355 A1 FR2892355 A1 FR 2892355A1
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FR
France
Prior art keywords
backrest
cam
seat
locking
folded
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
FR0553245A
Other languages
French (fr)
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FR2892355B1 (en
Inventor
Laurent Georges
Guillaume Gevaert
Patrice Catte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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.)
Filing date
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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 FR0553245A priority Critical patent/FR2892355B1/en
Publication of FR2892355A1 publication Critical patent/FR2892355A1/en
Application granted granted Critical
Publication of FR2892355B1 publication Critical patent/FR2892355B1/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
    • B60N2/24—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
    • B60N2/3029—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by composed movement
    • B60N2/3031—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest 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
    • B60N2/02—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
    • B60N2/02—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
    • B60N2/08—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 characterised by the locking device
    • B60N2/0881—Activation of the latches by the control mechanism
    • 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
    • B60N2/12—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 and tiltable
    • 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
    • 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

Landscapes

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

Abstract

The assembly (1) has a movable slide (2) mounted in translation on a fixed slide (3). A seat has a base structure (4) and a backrest structure (5) activable between a folded up and folded down positions. The slide (2) is provided with a locking unit. A slide locking/unlocking unit (17) has a cam cooperated with a cam follower integrated to the locking unit so as to set the locking unit in locking position when the backrest is folded up, unlock the locking unit in intermediate folded down position and set again the locking unit in locking position when the backrest is folded down.

Description

L'invention concerne un assemblage de siège de véhicule automobile.The invention relates to a motor vehicle seat assembly.

Il est connu de réaliser un assemblage de siège de véhicule automobile comprenant une glissière mobile montée en translation sur une glissière fixe, solidaire du plancher dudit véhicule.  It is known to provide a motor vehicle seat assembly comprising a movable slide mounted in translation on a fixed slide, integral with the floor of said vehicle.

Il est connu qu'un tel siège comprenne une structure d'assise et une structure de dossier actionnable entre une position relevée et une position rabattue sur io ladite assise, selon un premier axe transversal solidaire de la glissière mobile, de sorte à former un dossier rabattable.  It is known that such a seat comprises a seat structure and a backrest structure operable between a raised position and a folded position on said seat, along a first transverse axis integral with the movable slide, so as to form a folder folding.

Il est connu, par exemple du document US-6 152 533, que la structure d'assise soit articulée à la structure de dossier sensiblement selon un deuxième axe 15 transversal, ledit deuxième axe étant décalé par rapport au premier axe de sorte, lors du rabattement de ladite structure de dossier, à provoquer une translation de ladite structure d'assise vers l'avant par rapport à la glissière mobile, ainsi qu'un affaissement vers le bas de ladite structure d'assise, ceci de sorte à procurer un volume de rangement optimal lorsque le siège est rabattu. 20 Dans les assemblages connus, une telle translation entraîne le mouvement d'au moins un organe dudit assemblage vers l'avant, cet organe étant au moins la structure d'assise, et parfois un autre organe tel qu'une barre comprise dans lesdits assemblages. 25 Une telle translation vers l'avant de la structure d'assise est rendu possible du fait qu'elle est montée sur la glissière mobile par l'intermédiaire d'une bielle dont une première extrémité est articulée sur ladite structure d'assise, selon un troisième axe transversal, et la deuxième extrémité est montée mobile, par 30 exemple en rotation comme décrit dans le document US-6 152 533, sur ladite glissière mobile.  It is known, for example from document US Pat. No. 6,152,533, that the seat structure is articulated to the backrest structure substantially along a second transverse axis, said second axis being offset with respect to the first axis so, at the time when folding of said backrest structure, to cause a translation of said seat structure forwardly relative to the movable slide, and a downward sagging of said seat structure, so as to provide a volume optimal storage when the seat is folded down. In the known assemblies, such a translation causes the movement of at least one member of said assembly forward, this member being at least the seat structure, and sometimes another member such as a bar included in said assemblies. . Such a forward translation of the seat structure is made possible because it is mounted on the movable slideway by means of a connecting rod whose first end is articulated on said seat structure, according to a third transverse axis, and the second end is movably mounted, for example in rotation as described in US-6 152 533, on said movable slideway.

La glissière mobile est pourvue d'un moyen de verrouillage réversible sur la glissière fixe, le moyen de verrouillage étant agencé pour présenter une position stable de verrouillage, son déverrouillage étant actionnable par activation d'une commande par l'utilisateur de sorte à permettre un réglage de la position longitudinale du siège.  The movable slide is provided with a reversible locking means on the fixed slide, the locking means being arranged to have a stable locking position, its unlocking being actuatable by activation of a command by the user so as to allow a adjustment of the longitudinal position of the seat.

Dans les assemblages connus, il est connu que le moyen de verrouillage se déverrouille lorsque l'utilisateur procède au rabattement du dossier, ce qui permet de positionner le siège rabattu dans la position longitudinale souhaitée, par exemple une position avancée permettant l'accès aux places arrières par les portes avant du véhicule, notamment dans les véhicules ne comportant pas de io portes arrières.  In known assemblies, it is known that the locking means is unlocked when the user folds the backrest, which allows to position the folded seat in the desired longitudinal position, for example an advanced position allowing access to places rear by the front doors of the vehicle, especially in vehicles with no rear doors.

Un tel déverrouillage est par exemple effectué au moyen d'un câble relié entre le dossier et le moyen de verrouillage de sorte que le rabattement du dossier crée une tension du câble qui agit sur le déverrouillage du moyen de 15 verrouillage.  Such an unlocking is for example carried out by means of a cable connected between the backrest and the locking means so that the folding of the backrest creates a tension of the cable which acts on the unlocking of the locking means.

Un tel dispositif utilisant un câble n'est pas optimal, l'installation dudit câble présentant une relative complexité et étant susceptible de présenter des défauts, tel qu'une tension inadaptée dudit câble, ce qui peut en entraver le bon 20 fonctionnement.  Such a device using a cable is not optimal, the installation of said cable having a relative complexity and being liable to present defects, such as unsuitable voltage of said cable, which can hinder its proper operation.

En outre, un tel dispositif ne permet pas de verrouiller à nouveau le moyen de verrouillage une fois le siège rabattu, le siège n'étant alors pas maintenu longitudinalement par rapport à la glissière fixe. Il en résulte notamment une 25 insécurité liée au manque de verrouillage du siège qui peut s'avérer dangereux en cas de collision du véhicule.  In addition, such a device does not allow to lock again the locking means once the seat folded down, the seat is then not held longitudinally with respect to the fixed slide. This results in particular an insecurity related to the lack of locking of the seat which can be dangerous in case of collision of the vehicle.

L'invention a pour but de pallier ces inconvénients en proposant un assemblage de siège de véhicule automobile de conception simple et robuste, permettant de 30 verrouiller à nouveau la position longitudinale du siège une fois rabattu.  The invention aims to overcome these disadvantages by providing a motor vehicle seat assembly of simple and robust design, to lock again the longitudinal position of the seat once folded.

A cet effet, l'invention propose un assemblage de siège de véhicule automobile comprenant une glissière mobile montée en translation sur une glissière fixe, destinée à être solidaire du plancher dudit véhicule, ledit siège comprenant une structure d'assise et une structure de dossier actionnable en rotation selon un premier axe transversal solidaire de ladite glissière entre une position relevée et une position rabattue sur ladite assise, de sorte à former un dossier rabattable, ladite structure d'assise étant articulée à ladite structure de dossier sensiblement selon un deuxième axe transversal, ledit deuxième axe étant décalé par rapport audit premier axe de sorte, lors du rabattement de ladite structure de dossier, à provoquer une translation de ladite structure d'assise vers l'avant par rapport à ladite glissière mobile, ladite translation entraînant le mouvement d'au moins un organe dudit assemblage vers l'avant, ladite io structure d'assise étant montée sur ladite glissière mobile par l'intermédiaire d'une bielle dont une première extrémité est articulée sur ladite structure d'assise, selon un troisième axe transversal, et la deuxième extrémité est montée mobile sur ladite glissière mobile, ladite glissière mobile étant pourvue d'un moyen de verrouillage réversible sur ladite glissière fixe, ledit moyen de 15 verrouillage étant agencé pour présenter une position stable de verrouillage, son déverrouillage étant actionnable par activation d'une commande par l'utilisateur, ledit assemblage comprenant un dispositif de blocage/déblocage de glissière comprenant une came solidaire dudit organe et agencée pour coopérer avec un suiveur de came solidaire dudit moyen de verrouillage, de sorte à le laisser en 20 position de verrouillage lorsque ledit dossier est relevé, le déverrouiller en position intermédiaire de rabattement dudit dossier et le laisser en position de verrouillage lorsque le dossier est rabattu.  For this purpose, the invention proposes a motor vehicle seat assembly comprising a movable slide mounted in translation on a fixed slideway intended to be integral with the floor of said vehicle, said seat comprising a seat structure and an actuable backrest structure. in rotation along a first transverse axis secured to said slideway between a raised position and a folded position on said seat, so as to form a folding backrest, said seat structure being articulated to said backrest structure substantially along a second transverse axis, said second axis being offset relative to said first axis so, when folding said backrest structure, to cause a translation of said seat structure forward with respect to said movable slide, said translation causing the movement of at least one member of said forward assembly, said seating structure being mounted on said movable slideway via a connecting rod whose first end is articulated on said seat structure, along a third transverse axis, and the second end is movably mounted on said movable slide, said movable slide being provided with a reversible locking means on said fixed slide, said locking means being arranged to have a stable locking position, its unlocking being actuatable by activation of a control by the user, said assembly comprising a locking / unlocking device of slideway comprising a cam integral with said member and arranged to cooperate with a cam follower integral with said locking means, so as to leave it in the locking position when said backrest is raised, unlocking it in the intermediate position of folding said backrest and leaving it in the locked position when the backrest is folded down.

Dans ce descriptif, les termes de positionnement dans l'espace (avant, arrière, 25 longitudinal, transversal, latéral, supérieur, inférieur,...) correspondent à ceux relatifs à l'assemblage monté sur véhicule.  In this description, the positioning terms in the space (front, rear, longitudinal, transverse, lateral, upper, lower, ...) correspond to those relating to the assembly mounted on a vehicle.

Un tel assemblage, permet d'effectuer un déverrouillage de la glissière mobile pendant la manoeuvre de rabattement, suivi d'un verrouillage lorsque le siège 30 est rabattu.  Such an assembly makes it possible to unlock the movable slide during the crimping operation, followed by locking when the seat 30 is folded down.

D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence aux figures jointes dans lesquelles : • les figures 1 a et 1 b sont des vues schématiques latérales d'un assemblage de siège, selon un mode de réalisation de l'invention, ledit siège étant en position relevée (1 a) et rabattue (1 b), • les figures 2a, 2b, 2c et 2d sont des vues schématiques de détail de l'assemblage de la figure 1, selon un mode de réalisation, montrant le fonctionnement du dispositif de blocage/déblocage de glissière lorsque le siège est en position relevée (2a), en cours de rabattement (2b), rabattu (2c) et en cours de relèvement (2d).  Other features and advantages of the invention will appear in the description which follows, with reference to the appended figures in which: FIGS. 1a and 1b are lateral schematic views of a seat assembly, according to a embodiment of the invention, said seat being in the raised position (1 a) and folded (1 b), • Figures 2a, 2b, 2c and 2d are schematic views of detail of the assembly of Figure 1, according to a embodiment, showing the operation of the slide lock / unlock device when the seat is in the raised (2a), folded (2b), folded (2c) and raising (2d) position.

io En référence à la figure 1, on décrit à présent un assemblage de siège 1 de véhicule automobile comprenant une glissière mobile 2 montée en translation sur une glissière fixe 3, solidaire du plancher dudit véhicule.  Referring to Figure 1, there is now described a motor vehicle seat assembly 1 comprising a movable slide 2 mounted in translation on a fixed slide 3, integral with the floor of said vehicle.

L'assemblage comprend une structure d'assise 4 et une structure de dossier 5 15 actionnable en rotation entre une position relevée et une position rabattue sur ladite assise, selon un premier axe transversal 6 solidaire de la glissière mobile 2, de sorte à former un dossier rabattable.  The assembly comprises a seat structure 4 and a backrest structure 15 rotatable between a raised position and a folded position on said seat, according to a first transverse axis 6 secured to the movable slide 2, so as to form a folding backrest.

La structure d'assise 4 est articulée à la structure de dossier 5 sensiblement 20 selon un deuxième axe transversal 7, ledit deuxième axe étant décalé par rapport au premier axe 6 de sorte, lors du rabattement de ladite structure de dossier, à provoquer une translation de ladite structure d'assise vers l'avant par rapport à la glissière mobile 2.  The seat structure 4 is articulated to the backrest structure 5 substantially 20 along a second transverse axis 7, said second axis being offset relative to the first axis 6 so, when folding said backrest structure, to cause translation of said seat structure forwardly with respect to the movable slide 2.

25 Une telle translation entraîne le mouvement d'au moins un organe de l'assemblage vers l'avant. Dans la réalisation représentée, un tel organe peut être formé par la structure d'assise 4 ou par une barre 8 dont on déterminera ultérieurement l'agencement et la fonction.  Such a translation causes the movement of at least one member of the assembly forward. In the embodiment shown, such a member may be formed by the seat structure 4 or by a bar 8, the arrangement and function of which will be determined later.

30 La partie avant de la structure d'assise 4 est montée sur la glissière mobile 2 par l'intermédiaire d'une bielle 9 dont une première extrémité est articulée sur ladite structure d'assise, selon un troisième axe transversal 10, et la deuxième extrémité est montée mobile sur ladite glissière mobile. 5 La glissière mobile 2 est pourvue d'un moyen de verrouillage réversible sur la glissière fixe 3, non représenté. Le moyen de verrouillage est agencé pour présenter une position stable de verrouillage, son déverrouillage étant actionnable par activation d'une commande par l'utilisateur. L'assemblage 1 comprend en outre un dispositif de blocage/déblocage de glissière 17.  The front portion of the seat structure 4 is mounted on the movable slide 2 by means of a connecting rod 9, a first end of which is articulated on said seat structure, along a third transverse axis 10, and the second end end is movably mounted on said movable slide. The movable slide 2 is provided with a reversible locking means on the fixed slide 3, not shown. The locking means is arranged to present a stable locking position, its unlocking being operable by activation of a command by the user. The assembly 1 further comprises a slide locking / unlocking device 17.

Le dispositif 17 est représenté agrandi en figure 2, représentée de façon io symétrique à la figure 1, c'est à dire avec permutation de l'avant et de l'arrière dudit dispositif.  The device 17 is shown enlarged in FIG. 2, shown symmetrically in FIG. 1, that is to say with permutation of the front and rear of said device.

Le dispositif 17 comprend une came 11 solidaire de la barre coudée 8. Dans la réalisation représentée, la came 11 est formée d'une lame métallique pourvue 15 d'un épaulement 20, soudée saillante et de façon sensiblement longitudinale à la barre 8. La barre 8 est dirigée sensiblement horizontalement, déplaçable en translation. La came 11 est agencée pour coopérer avec un suiveur de came 12 solidaire du moyen de verrouillage, non représenté, de sorte à le laisser en position de verrouillage lorsque le dossier 5 est relevé, le déverrouiller en 20 position intermédiaire de rabattement dudit dossier et le laisser à nouveau en position de verrouillage lorsque ledit dossier est rabattu.  The device 17 comprises a cam 11 integral with the bent bar 8. In the embodiment shown, the cam 11 is formed of a metal blade provided with a shoulder 20 welded projecting and substantially longitudinally to the bar 8. The bar 8 is directed substantially horizontally, movable in translation. The cam 11 is arranged to cooperate with a cam follower 12 secured to the locking means, not shown, so as to leave it in the locking position when the backrest 5 is raised, unlocking it in the intermediate position of folding said backrest and the leave it again in the locked position when said folder is folded down.

Selon la réalisation représentée, le suiveur de came 12 est monté en rotation sur la glissière mobile 2, selon un axe transversal 13, et coopère avec la came 25 11 par l'intermédiaire d'une roulette 21 disposée en position haute lorsque le siège est relevé (figure 2a) ou abattu (figure 2c), et en position basse, du fait de l'appui de la came 12, lorsque le siège est en cours de rabattement (figure 2b), ledit suiveur de came interférant en position basse avec le moyen de verrouillage, de sorte à le déverrouiller. 30 La roulette 21 peut être remplacé par tout autre organe analogue, tel qu'une roue dentée, engrainant avec une crémaillère prévue sur la came 12, ceci de sorte à en faciliter son déplacement, ou une surface de glissement.  According to the embodiment shown, the cam follower 12 is rotatably mounted on the movable slide 2, along a transverse axis 13, and cooperates with the cam 25 11 via a roller 21 arranged in a high position when the seat is raised (FIG. 2a) or shot down (FIG. 2c), and in the low position, because of the support of the cam 12, when the seat is being folded down (FIG. 2b), said cam follower being in a low position with the locking means so as to unlock it. The wheel 21 may be replaced by any other similar member, such as a toothed wheel, engraining with a rack provided on the cam 12, so as to facilitate its movement, or a sliding surface.

Selon la réalisation représentée, la came 11 comprend une première piste 18 sur laquelle s'appuie le suiveur de came 12 lors du rabattement du dossier 5, et une deuxième piste 19 sur laquelle s'appuie ledit suiveur de came lors du relèvement dudit dossier, ladite deuxième piste étant agencée de sorte que le moyen de verrouillage reste en position verrouillée lors du relèvement dudit dossier, de sorte que la manoeuvre de relèvement soit facilitée. Les pistes 18 et 19 sont respectivement formées par la face inférieure et supérieure de la lame formant la came 11.  According to the embodiment shown, the cam 11 comprises a first track 18 on which the cam follower 12 rests during the folding of the backrest 5, and a second track 19 on which said cam follower relies during the raising of said backrest, said second track being arranged so that the locking means remains in the locked position when raising said folder, so that the raising maneuver is facilitated. The tracks 18 and 19 are respectively formed by the lower and upper face of the blade forming the cam 11.

io On décrit à présent, selon les figures 2a à 2d, la cinématique complète de rabattement et de relèvement d'un dossier 5.  Now, according to FIGS. 2a to 2d, the complete kinematics of folding and raising of a file 5 are described.

Lorsque le siège est en position relevée (2a), le suiveur de came 12, solidaire du moyen de verrouillage, est dans sa position de verrouillage dudit moyen. En 15 cours de rabattement (2b), la barre 8 se déplace en arrière (flèche épaisse) et le suiveur de came 12 coopère avec la piste 18 en effectuant une rotation (flèche fine) autour de l'axe 13, de sorte à déverrouiller le moyen de verrouillage et à permettre la translation de la glissière mobile 2, non représentée. Lorsque le siège est rabattu (2c), le suiveur de came 12 ne coopère plus avec la came 11, 20 et se retrouve dans la position de verrouillage du moyen de verrouillage. Lorsqu'on relève le dossier 5 (2d), le suiveur de came 12 s'engage sur la piste 19 et la came 11 ne coopère plus avec lui de sorte à le disposer en position de verrouillage du moyen de verrouillage. Juste avant relevage complet du dossier 5, la roulette 21 passe l'épaulement arrière 20, prévu sur la lame, de sorte à 25 pouvoir être engagé sur la piste 18 lors d'un rabattement ultérieur du siège.  When the seat is in the raised position (2a), the cam follower 12, integral with the locking means, is in its locking position of said means. In course of folding (2b), the bar 8 moves back (thick arrow) and the cam follower 12 cooperates with the track 18 by rotating (thin arrow) about the axis 13, so as to unlock the locking means and to allow the translation of the movable slide 2, not shown. When the seat is folded down (2c), the cam follower 12 no longer cooperates with the cam 11, 20 and is in the locking position of the locking means. When the backrest 5 (2d) is raised, the cam follower 12 engages on the track 19 and the cam 11 no longer cooperates with it so as to arrange it in the locking position of the locking means. Just before complete raising of the backrest 5, the wheel 21 passes the rear shoulder 20, provided on the blade, so as to be engaged on the track 18 during a subsequent folding of the seat.

Selon la réalisation représentée en figure 1, la deuxième extrémité de la bielle 9 est montée en translation dans une lumière 14 solidaire de la glissière mobile 2, ladite lumière étant d'axe sensiblement longitudinal et étant prévue de sorte que 30 ladite deuxième extrémité de la bielle soit disposée en partie avant de ladite lumière quand le dossier 5 est en position relevée et en partie arrière quand ledit dossier est en position rabattue.  According to the embodiment shown in FIG. 1, the second end of the connecting rod 9 is mounted in translation in a slot 14 integral with the movable slide 2, said slot being of substantially longitudinal axis and being provided so that said second end of the connecting rod is disposed in front of said light when the backrest 5 is in the raised position and in the rear when said folder is in the folded position.

Une telle réalisation permet de limiter l'avancée du siège lors de son mouvement de rabattement, et en particulier, dans le cas d'un siège arrière, d'éviter son interférence avec le siège avant.  Such an embodiment makes it possible to limit the advance of the seat during its folding movement, and in particular, in the case of a rear seat, to avoid its interference with the front seat.

La deuxième extrémité de la bielle 9 est montée en rotation, selon un quatrième axe transversal 15, à l'extrémité de la barre 8 dont l'autre extrémité est articulée selon un cinquième axe transversal 16, décalé par rapport au premier axe transversal 6 et disposé à l'opposé du deuxième axe transversal 7 de sorte, lors du rabattement de ladite structure de dossier 5, à appliquer un effort de io translation sur ladite deuxième extrémité de la barre 8, ce qui permet d'assurer un bon fonctionnement de la cinématique de rabattement.  The second end of the connecting rod 9 is rotatably mounted along a fourth transverse axis 15, at the end of the bar 8 whose other end is articulated along a fifth transverse axis 16, offset with respect to the first transverse axis 6 and disposed opposite the second transverse axis 7 so, when folding said backrest structure 5, to apply a translational force on said second end of the bar 8, which ensures a smooth operation of the kinematics of folding.

Selon une réalisation non représentée, la deuxième extrémité de la bielle 9 peut simplement être montée en rotation sur la glissière mobile 2. Une telle 15 réalisation, décrite par exemple dans le document US-6 152 533, ne prévoit pas l'intervention d'une barre 8. La came 11 peut alors être rendue solidaire de la structure d'assise 4.  According to an embodiment not shown, the second end of the connecting rod 9 can simply be mounted in rotation on the movable slide 2. Such an embodiment, described for example in the document US-6 152 533, does not provide for the intervention of a bar 8. The cam 11 can then be made integral with the seat structure 4.

Selon la réalisation représentée, l'assemblage comprend en outre un moyen de 20 contrainte, par exemple sous forme d'un piston non représenté, agencé pour déplacer la glissière mobile 2 vers l'arrière lorsque le moyen de verrouillage est déverrouillé, ce qui permet de disposer le siège en position longitudinale reculée et d'assurer ainsi une continuité entre le plancher de coffre et l'arrière de dossier 5 de siège.  According to the embodiment shown, the assembly further comprises a constraint means, for example in the form of a piston, not shown, arranged to move the movable slide 2 rearwardly when the locking means is unlocked, which allows to arrange the seat in retracted longitudinal position and thus to ensure continuity between the boot floor and the back of the seat back.

25 Lorsque le siège est monté sur deux glissières mobiles 2, l'assemblage tel que décrit précédemment peut être reproduit au niveau de chacune des glissières, les dispositifs 17 respectifs pouvant être reliés entre eux par une tringle, de sorte à assurer un blocage bilatéral du siège.When the seat is mounted on two movable rails 2, the assembly as described above can be reproduced at each of the slideways, the respective devices 17 being able to be connected together by a rod, so as to ensure a bilateral locking of the seat.

Claims (7)

REVENDICATIONS 1) Assemblage (1) de siège de véhicule automobile comprenant une glissière mobile (2) montée en translation sur une glissière fixe (3), destinée à être solidaire du plancher dudit véhicule, ledit siège comprenant une structure d'assise (4) et une structure de dossier (5) actionnable en rotation selon un premier axe transversal (6) solidaire de ladite glissière mobile entre une position relevée et une position rabattue sur ladite assise, de sorte à former io un dossier rabattable, ladite structure d'assise étant articulée à ladite structure de dossier sensiblement selon un deuxième axe transversal (7), ledit deuxième axe étant décalé par rapport audit premier axe de sorte, lors du rabattement de ladite structure de dossier, à provoquer une translation de ladite structure d'assise vers l'avant par rapport à ladite glissière mobile, 15 ladite translation entraînant le mouvement d'au moins un organe (8) dudit assemblage vers l'avant, ladite structure d'assise étant montée sur ladite glissière mobile par l'intermédiaire d'une bielle (9) dont une première extrémité est articulée sur ladite structure d'assise, selon un troisième axe transversal (10), et la deuxième extrémité est montée mobile sur ladite 20 glissière mobile, ladite glissière mobile étant pourvue d'un moyen de verrouillage réversible sur ladite glissière fixe, ledit moyen de verrouillage étant agencé pour présenter une position stable de verrouillage, son déverrouillage étant actionnable par activation d'une commande par l'utilisateur, ledit assemblage étant caractérisé en ce qu'il comprend un 25 dispositif de blocage/déblocage de glissière (17) comprenant une came (11) solidaire dudit organe et agencée pour coopérer avec un suiveur de came (12) solidaire dudit moyen de verrouillage, de sorte à le laisser en position de verrouillage lorsque ledit dossier est relevé, le déverrouiller en position intermédiaire de rabattement dudit dossier et le laisser à nouveau en position 30 de verrouillage lorsque ledit dossier est rabattu.  1) A motor vehicle seat assembly (1) comprising a movable slideway (2) mounted in translation on a fixed slideway (3) intended to be integral with the floor of said vehicle, said seat comprising a seat structure (4) and a backrest structure (5) operable in rotation along a first transverse axis (6) integral with said movable slide between a raised position and a folded position on said seat, so as to form a folding backrest, said seat structure being articulated to said backrest structure substantially along a second transverse axis (7), said second axis being offset relative to said first axis so, when folding said backrest structure, to cause a translation of said seat structure towards the front with respect to said movable slide, said translation causing the movement of at least one member (8) of said assembly forwards, said seat structure etan t mounted on said movable slideway via a connecting rod (9), a first end of which is articulated on said seat structure, along a third transverse axis (10), and the second end is movably mounted on said slide rail mobile, said movable slide being provided with a reversible locking means on said fixed slide, said locking means being arranged to have a stable locking position, its unlocking being operable by activation of a command by the user, said assembly characterized in that it comprises a slider locking / unlocking device (17) comprising a cam (11) integral with said member and arranged to cooperate with a cam follower (12) integral with said locking means, so as to leave it in the locking position when said backrest is raised, unlock it in the intermediate position of folding of said file and leave it again in the locking position 30 when said folder is folded down. 2) Assemblage selon la revendication 1, caractérisé en ce que la came (11) comprend une première piste (18) sur laquelle s'appuie le suiveur de came (12) lors du rabattement du dossier (5), et une deuxième piste (19) surlaquelle s'appuie ledit suiveur de came lors du relèvement dudit dossier, ladite deuxième piste étant agencée de sorte que le moyen de verrouillage reste en position verrouillée lors du relèvement dudit dossier.  2) Assembly according to claim 1, characterized in that the cam (11) comprises a first track (18) on which the cam follower (12) rests when the backrest (5) is folded, and a second track ( 19) on which said cam follower relies upon raising said backrest, said second track being arranged so that the locking means remains in the locked position when raising said backrest. 3) Assemblage selon la revendication 1 ou 2, caractérisé en ce que la deuxième extrémité de la bielle (9) est montée en translation dans une lumière (14) solidaire de la glissière mobile (2), ladite lumière étant d'axe sensiblement longitudinal et étant prévue de sorte que ladite deuxième extrémité de la bielle (9) soit disposée en partie avant de ladite lumière io quand le dossier (5) est en position relevée et en partie arrière quand ledit dossier est en position rabattue, ladite deuxième extrémité de la bielle (9) étant montée en rotation à l'extrémité d'une barre (8), selon un quatrième axe transversal (15), l'autre extrémité de ladite barre étant articulée au dossier (5) selon un cinquième axe transversal (16), décalé par rapport au 15 premier axe transversal (6) et disposé à l'opposé du deuxième axe transversal (7) de sorte, lors du rabattement de ladite structure de dossier, à appliquer un effort de translation sur ladite deuxième extrémité de la bielle, l'organe dont est solidaire la came (11) étant formé de ladite barre. 20  3) Assembly according to claim 1 or 2, characterized in that the second end of the rod (9) is mounted in translation in a slot (14) integral with the movable slide (2), said light being of substantially longitudinal axis and being provided so that said second end of the connecting rod (9) is disposed in front of said light when the backrest (5) is in the raised position and in the rear when said backrest is in the folded position, said second end of the connecting rod (9) being rotatably mounted at the end of a bar (8), along a fourth transverse axis (15), the other end of said bar being articulated to the backrest (5) along a fifth transverse axis ( 16), offset from the first transverse axis (6) and disposed opposite the second transverse axis (7) so, when folding said backrest structure, to apply a translation force on said second end the rod which is secured to the cam (11) being formed of said bar. 20 4) Assemblage selon la revendication 1 ou 2, caractérisé en ce que la deuxième extrémité de la bielle (9) est montée en rotation sur la glissière mobile (2), l'organe dont est solidaire la came (11) étant formé de la structure d'assise (4). 25  4) An assembly according to claim 1 or 2, characterized in that the second end of the rod (9) is rotatably mounted on the movable slide (2), the member which is integral with the cam (11) being formed of the seat structure (4). 25 5) Assemblage selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il comprend en outre un moyen de contrainte agencé pour déplacer la glissière mobile (2) vers l'arrière lorsque le moyen de verrouillage est déverrouillé. 30  5) Assembly according to any one of claims 1 to 4, characterized in that it further comprises a constraint means arranged to move the movable slide (2) rearwardly when the locking means is unlocked. 30 6) Assemblage selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la came (11) est formée d'une lame métallique définissant la première piste (18) et la deuxième piste (19) respectivement formées par la face inférieure et supérieure de ladite lame, ladite lame étant agencée de sorte que le suiveur de came (12) s'engage dans ladite première piste lors 2892355 io du rabattement du siège et dans ladite deuxième piste lors de son relèvement, de sorte à ne pas déverrouiller le moyen de verrouillage lors du relèvement du dossier (5). 5  6) Assembly according to any one of claims 2 to 5, characterized in that the cam (11) is formed of a metal blade defining the first track (18) and the second track (19) respectively formed by the underside and upper of said blade, said blade being arranged so that the cam follower (12) engages in said first track when folding the seat and in said second track when it is raised, so as not to unlock the locking means when raising the backrest (5). 5 7) Assemblage selon la revendication 6, caractérisé en ce que le suiveur de came (12) comprend une roulette (21) agencée pour se déplacer sur la première (18) et la deuxième (19) pistes lors de la coopération dudit suiveur de came avec la came (11).  7) An assembly according to claim 6, characterized in that the cam follower (12) comprises a roller (21) arranged to move on the first (18) and second (19) tracks during the cooperation of said cam follower with the cam (11).
FR0553245A 2005-10-25 2005-10-25 FOLDING VEHICLE SEAT ASSEMBLY COMPRISING A MEANS FOR UNLOCKING THE LONGITUDINAL MOVEMENT OF SAID SEAT Expired - Fee Related FR2892355B1 (en)

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FR0553245A FR2892355B1 (en) 2005-10-25 2005-10-25 FOLDING VEHICLE SEAT ASSEMBLY COMPRISING A MEANS FOR UNLOCKING THE LONGITUDINAL MOVEMENT OF SAID SEAT

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FR0553245A FR2892355B1 (en) 2005-10-25 2005-10-25 FOLDING VEHICLE SEAT ASSEMBLY COMPRISING A MEANS FOR UNLOCKING THE LONGITUDINAL MOVEMENT OF SAID SEAT

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FR2892355B1 FR2892355B1 (en) 2008-01-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2441624A (en) * 2006-09-08 2008-03-12 Ford Global Tech Llc Vehicle seat with four bar linkage defined by the seat back, the seat cushion, a front pivot link and the vehicle floor
FR2991927A1 (en) * 2012-06-19 2013-12-20 Antolin Grupo Ing Sa REMOVABLE SEAT
FR3004392A1 (en) * 2013-04-11 2014-10-17 Peugeot Citroen Automobiles Sa DEVICE FOR AUTOMATICALLY ACTUATING A REVERSIBLE LOCKING MECHANISM OF THE LONGITUDINAL POSITION OF A SEAT OF A MOTOR VEHICLE.
EP3666587A1 (en) * 2018-12-11 2020-06-17 Hyundai Motor Company Fold and dive seat for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6152533A (en) * 1997-05-27 2000-11-28 Bertrand Faure Components Ltd. Slide/fold/EZ entry seat mechanism
FR2851211A1 (en) * 2003-02-19 2004-08-20 Faurecia Sieges Automobile Vehicle seat, has backrest rotatably mounted in accordance with rail and seat having interlocking device to selectively authorize rotation of backrest, and front with upper and lower end is rotatably mounted based on vehicle floor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6152533A (en) * 1997-05-27 2000-11-28 Bertrand Faure Components Ltd. Slide/fold/EZ entry seat mechanism
FR2851211A1 (en) * 2003-02-19 2004-08-20 Faurecia Sieges Automobile Vehicle seat, has backrest rotatably mounted in accordance with rail and seat having interlocking device to selectively authorize rotation of backrest, and front with upper and lower end is rotatably mounted based on vehicle floor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2441624A (en) * 2006-09-08 2008-03-12 Ford Global Tech Llc Vehicle seat with four bar linkage defined by the seat back, the seat cushion, a front pivot link and the vehicle floor
GB2441624B (en) * 2006-09-08 2010-08-11 Ford Global Tech Llc A multifunction vehicular seat
FR2991927A1 (en) * 2012-06-19 2013-12-20 Antolin Grupo Ing Sa REMOVABLE SEAT
FR3004392A1 (en) * 2013-04-11 2014-10-17 Peugeot Citroen Automobiles Sa DEVICE FOR AUTOMATICALLY ACTUATING A REVERSIBLE LOCKING MECHANISM OF THE LONGITUDINAL POSITION OF A SEAT OF A MOTOR VEHICLE.
EP3666587A1 (en) * 2018-12-11 2020-06-17 Hyundai Motor Company Fold and dive seat for vehicle
US10953773B2 (en) 2018-12-11 2021-03-23 Hyundai Motor Company Fold and dive seat for vehicle

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