FR2840267A1 - Vehicle seat comprises seat part and back having lower and upper pivoted parts connected by locking mechanism belonging to bi-stable mechanical device comprising pusher which can push back upper part onto folded down position - Google Patents

Vehicle seat comprises seat part and back having lower and upper pivoted parts connected by locking mechanism belonging to bi-stable mechanical device comprising pusher which can push back upper part onto folded down position Download PDF

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Publication number
FR2840267A1
FR2840267A1 FR0206499A FR0206499A FR2840267A1 FR 2840267 A1 FR2840267 A1 FR 2840267A1 FR 0206499 A FR0206499 A FR 0206499A FR 0206499 A FR0206499 A FR 0206499A FR 2840267 A1 FR2840267 A1 FR 2840267A1
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France
Prior art keywords
backrest
blocking
seat
locking
support frame
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Granted
Application number
FR0206499A
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French (fr)
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FR2840267B1 (en
Inventor
Stephane Castagna
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.)
Faurecia Sieges dAutomobile SAS
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Faurecia Sieges dAutomobile SAS
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Priority to FR0206499A priority Critical patent/FR2840267B1/en
Publication of FR2840267A1 publication Critical patent/FR2840267A1/en
Application granted granted Critical
Publication of FR2840267B1 publication Critical patent/FR2840267B1/en
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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
    • B60N2/02—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

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

Abstract

The seat comprises a seat part (16) and a back comprising a lower part (7) pivoted on the seat part and an upper part (6) pivoted on the lower part. The back upper and lower parts are connected by a locking mechanism (30) belonging to a bi-stable mechanical device (35) which comprises a pusher part (36). The bi-stable mechanical device spring (39) pulls the pusher part into an active position when the locking mechanism is close to its unlocking position. The pusher part then pushes back the upper part of the back to a folded down position.

Description

vehicule.vehicle.

Siege de vehicule.Vehicle seat.

La presente invention est relative aux sieges de vehicules. Plus particulierement, l' invention concerne un siege de vehicule comportant un dossier et une assise, le dossier comprenant au moins une partie superieure montee pivotante et reliee a une armature de support par un premier mecanisme de blocage deplacable entre d'une part, une position de blocage ou ledit premier mecanisme de blocage solidarise la partie superieure du dossier avec l' armature de support au moins dans une position angulaire d'utilisation normale, et d'autre part une position de deblocage ou ledit premier mecanisme de blocage permet une libre rotation de la partie superieure du dossier, le premier mecanisme de blocage etant commande par un premier organe de manuvre pour debloquer la partie superieure du dossier en rotation, au moins pour la rabattre depuis la position d'utilisation normale jusqu'a une position  The present invention relates to vehicle seats. More particularly, the invention relates to a vehicle seat comprising a backrest and a seat, the backrest comprising at least one upper part pivotally mounted and connected to a support frame by a first movable blocking mechanism between on the one hand, a position blocking or said first blocking mechanism secures the upper part of the backrest with the support frame at least in an angular position of normal use, and on the other hand an unlocking position or said first blocking mechanism allows free rotation of the upper part of the backrest, the first blocking mechanism being controlled by a first operating member to unlock the upper part of the backrest in rotation, at least to fold it from the normal use position to a position

rabattue.folded.

Le document FR-A-2 799 420 decrit un exemple d'un  Document FR-A-2 799 420 describes an example of a

tel siege de vehicule, qui donne toute satisfaction.  such vehicle seat, which gives full satisfaction.

La presente invention a notamment pour but de perfectionner encore ce siege connu, pour en rendre  The present invention aims in particular to further improve this known seat, to make it

l'utilisation plus facile et/ou plus agreable.  easier and / or more pleasant use.

A cet effet, selon l' invention, un siege du genre en question est caracterise en ce que le premier organe de manuvre commande un dispositif mecanique bistable qui comprend un organe pousseur deplacable entre une position de repos et une position active ou ledit organe pousseur est adapte pour pousser la partie superieure du dossier vers sa position rabattue, le dispositif mecanique bistable etant adapte pour solliciter elastiquement l'organe pousseur vers sa position de repos lorsque le premier mecanisme de blocage est proche de sa position de blocage et vers sa position active lorsque ledit premier mecanisme  To this end, according to the invention, a seat of the kind in question is characterized in that the first operating member controls a bistable mechanical device which comprises a pushing member movable between a rest position and an active position or said pushing member is suitable for pushing the upper part of the backrest towards its folded position, the bistable mechanical device being adapted to elastically urge the pusher member towards its rest position when the first blocking mechanism is close to its blocking position and towards its active position when said first mechanism

de blocage est proche de sa position de deblocage.  lock is close to its unlock position.

Grace a ces dispositions, l'organe pousseur donne une impulsion a la partie superieure du dossier lorsqu'on actionne le premier organe de manuvre, ce qui provoque ensuite le rabattement de la partie superieure du dossier sous l'effet de la gravite. La mise en position rabattue du dossier s'en trouve done facilitee pour les utilisateurs du siege. On notera que la position rabattue susmentionnee peut etre soit une position de tablette sensiblement horizontale, soit une position inclinee. On notera egalement que la totalite du dossier peut etre rabattue  Thanks to these provisions, the pusher member gives an impulse to the upper part of the backrest when the first operating member is actuated, which then causes the upper part of the backrest to fold down under the effect of gravity. This makes the backrest in the folded position easier for seat users. Note that the above-mentioned folded position can be either a substantially horizontal shelf position, or an inclined position. It should also be noted that the entire file can be folded down

d'un bloc, dans la position rabattue definie ci-dessus.  of a block, in the folded position defined above.

Dans des modes de realisation preferes de  In preferred embodiments of

l' invention, on peut eventuellement avoir recours en outre a l'une et/ou a l'autre des dispositions suivantes: - le dossier comprend une partie inferieure comprenant une armature de support qui est montee pivotante sur une armature intermediaire autour d'un premier axe de rotation horizontal transversal, laquelle armature intermediaire est montee pivotante sur l'assise autour du premier axe au moyen d'un mecanisme d' articulation adapte pour permettre a un utilisateur de regler une position angulaire du dossier par rapport a l'assise, la partie superieure du dossier etant montee pivotante sur ['armature de support autour d'un deuxieme axe de rotation horizontal transversal parallele au premier axe; - le premier mecanisme de blocage comprend une came de blocage qui est adaptee pour cooperer par butee avec le flasque de support pour bloquer ledit flasque de support lorsque ledit premier mecanisme de blocage est en position de blocage; - le dispositif mecanique bistable comprend ladite came de blocage, qui est articulee a l'organe pousseur en formant un mecanisme a genouillere; - la came de blocage et l'organe pousseur vent montes pivotants sur le flasque de support, et vent relies entre eux par un ressort de traction qui sollicite elastiquement l'organe pousseur vers sa position de repos et la came de blocage vers la position de blocage lorsque ladite came de blocage est proche de sa position de blocage, et qui sollicite elastiquement l'organe pousseur vers sa position active et la came de blocage vers sa position de deblocage lorsque ladite came de blocage est proche de sa position de deblocage; - l'armature de support est reliee au mecanisme d' articulation au moyen d'une armature intermediaire montee pivotante par rapport a l'assise autour du premier axe, l' armature intermediaire etant reliee a l'assise par le mecanisme d'articulation, l' armature de support est reliee a ['armature intermediaire au moyen d'un deuxieme mecanisme de blocage deplacable entre d'une part, une position de verrouillage ou ledit deuxieme mecanisme de blocage immobilise l' armature de support par rapport a l' armature intermediaire, et d'autre part, une position de deverrouillage ou ledit deuxieme mecanisme de blocage permet a l' armature de support de pivoter librement par rapport a ['armature intermediaire autour du premier axe, le deuxieme dispositif de blocage est relic a la partie superieure du dossier par un dispositif mecanique de couplage qui est adapte pour deplacer ledit deuxieme mecanisme de blocage dans sa position de deverrouillage loreque la partie superieure du dossier est dans sa position rabattue et pour permettre audit deuxieme mecanisme de blocage de se placer en position de verrouillage lorsque la partie superieure du dossier est en position d'utilisation, et le dossier est adapte pour cooperer par butee avec l'assise lorsque la partie superieure du dossier est en position rabattue, pour limiter le rabattement du dossier vers l' avant; - le deuxieme dispositif de blocage est relic a un deuxieme organe de manuvre accessible a un utilisateur pour deplacer ledit deuxieme dispositif de blocage de sa position de verrouillage a sa position de deverrouillage, le dispositif mecanique de couplage etant adapte pour permettre ce deplacement du deuxieme mecanisme de blocage lorsque la partie superieure du dossier est en position d'utilisation normale; - le dossier est rabattable dans son ensemble vers l' avant jusqu'a une position de butee lorsqu'on actionne le deuxieme organe de manuvre, et le premier dispositif de blocage est adapte pour interferer avec l'assise en empechant le deplacement audit premier dispositif de blocage de sa position de blocage vers sa position de deblocage lorsque le dossier est dans ladite position de butee; - le dispositif mecanique de couplage comporte des premier et deuxieme organes de couplage qui vent montes coulissants l'un par rapport a l'autre entre des premiere et deuxieme positions de butee et qui vent relies respectivement a la partie superieure du dossier et au deuxieme mecanisme de blocage, les premier et deuxieme organes de couplage etant disposes pour que le premier organe de couplage soit deplace jusqu'a la premiere position de butee par rapport au deuxieme organe de couplage lorsque la partie superieure du dossier est en position rabattue, en entralnant alors avec lui le deuxieme mecanisme de blocage de sa position verrouillee a sa position deverrouillee; - le dispositif mecanique de couplage est concu pour que le premier organe de couplage se trouve dans une position de repos distincte de la premiere position de butee par rapport au deuxieme organe de couplage lorsque la partie superieure du dossier est dans sa position d'utilisation normale par rapport a l' armature de support et lorsque le deuxieme mecanisme de blocage est dans sa position de verrouillage, cette position de repos etant adaptee pour que le premier organe de couplage n'entralne le deuxieme dispositif de blocage dans sa position deverrouillee qu'apres une certaine course angulaire de la partie superieure du dossier vers sa position rabattue; - le dispositif mecanique bistable comporte une butee qui est disposee pour interferer avec une contrebutee solidaire de l'assise en limitant le rabattement du dossier vers l' avant lorsque le dispositif mecanique bistable est en position active, ladite butee etant disposee pour ne pas interferer avec ladite contrebutee loreque le dispositif  the invention, it is optionally possible to have recourse in addition to one and / or the other of the following arrangements: - the backrest comprises a lower part comprising a support frame which is pivotally mounted on an intermediate frame around a first transverse horizontal axis of rotation, which intermediate frame is pivotally mounted on the seat around the first axis by means of a hinge mechanism adapted to allow a user to adjust an angular position of the backrest relative to the seat, the upper part of the backrest being pivotally mounted on the support frame around a second horizontal axis of rotation transverse to the first axis; - The first blocking mechanism comprises a blocking cam which is adapted to cooperate by abutment with the support flange to block said support flange when said first blocking mechanism is in the blocking position; - The bistable mechanical device comprises said blocking cam, which is articulated to the pusher member by forming a toggle mechanism; - the blocking cam and the wind pusher member pivotally mounted on the support flange, and the wind connected together by a tension spring which elastically urges the pusher member towards its rest position and the blocking cam towards the position of blocking when said blocking cam is close to its blocking position, and which resiliently biases the pusher member towards its active position and the blocking cam towards its unlocking position when said blocking cam is close to its unlocking position; the support frame is connected to the articulation mechanism by means of an intermediate frame mounted to pivot relative to the seat about the first axis, the intermediate frame being connected to the seat by the articulation mechanism, the support frame is connected to the intermediate frame by means of a second blocking mechanism displaceable between on the one hand, a locking position or said second blocking mechanism immobilizes the support frame relative to the intermediate frame , and on the other hand, an unlocking position where said second blocking mechanism allows the support frame to pivot freely relative to the intermediate frame around the first axis, the second blocking device is connected to the upper part of the backrest by a mechanical coupling device which is adapted to move said second locking mechanism in its unlocking position when the upper part of the backrest is in its pos ition folded down and to allow said second blocking mechanism to be in the locked position when the upper part of the backrest is in the use position, and the backrest is adapted to cooperate by abutment with the seat when the upper part of the backrest is in the folded position, to limit the folding of the backrest forwards; - The second locking device is connected to a second operating member accessible to a user for moving said second locking device from its locking position to its unlocking position, the mechanical coupling device being adapted to allow this displacement of the second mechanism. blocking when the upper part of the backrest is in the normal use position; - The backrest is foldable as a whole forward to a stop position when the second operating member is actuated, and the first locking device is adapted to interfere with the seat preventing movement of said first device blocking from its blocking position to its unlocking position when the backrest is in said abutment position; - The mechanical coupling device comprises first and second coupling members which are slidably mounted relative to each other between first and second stop positions and which are connected respectively to the upper part of the backrest and to the second mechanism. blocking, the first and second coupling members being arranged so that the first coupling member is moved to the first stop position relative to the second coupling member when the upper part of the backrest is in the folded position, then entraining with it the second mechanism for blocking its locked position in its unlocked position; - The mechanical coupling device is designed so that the first coupling member is in a rest position distinct from the first stop position relative to the second coupling member when the upper part of the backrest is in its normal use position. relative to the support frame and when the second blocking mechanism is in its locked position, this rest position being adapted so that the first coupling member does not center the second blocking device in its unlocked position until after a certain angular travel from the upper part of the backrest to its folded position; - the bistable mechanical device comprises a stop which is arranged to interfere with a buttress secured to the seat by limiting the folding of the backrest forward when the bistable mechanical device is in the active position, said stop being arranged so as not to interfere with said counterfeit when the device

mecanique bistable est en position de repos.  bistable mechanism is in rest position.

D'autres caracteristiques et avantages de  Other features and benefits of

l' invention apparaltront au cours de la description  the invention will appear during the description

suivante d'une de ses formes de realisation, donnee a titre  following of one of its embodiments, given as

d'exemple non limitatif, en regard des dessins joints.  non-limiting example, with reference to the accompanying drawings.

Sur les dessins: - la figure 1 est une vue schematique d'un siege de vehicule selon une forme de realisation de l' invention, en position normale d'utilisation, - les figures 2 et 3 vent des vues similaires a la figure 1, representant le siege de la figure 1 respectivement dans une position rabattue en tablette et dans une position d'acces aux places arriere du vehicule, - la figure 4 montre une partie du siege de la figure 1 en position normale d'utilisation, vue depuis l'exterieur du siege (les elements d'habillage du siege etant toutefois enleves), - la figure 5 est une vue de la partie du siege represente sur la figure 4, vue depuis l'interieur du siege, - la figure 6 est une vue eclatee de la partie de siege representee sur les figures 4 et 5, - la figure 7 est une vue en perspective similaire a la figure 4, montrant la partie du siege de la figure 4 au cours du passage de la position normale d'utilisation a la position rabattue en tablette, - la figure 8 est une vue similaire a la figure 4, representee dans la suite du mouvement vers la position rabattue en tablette, - la figure 9 montre la partie du siege represente sur la figure 8, vue depuis l'interieur du siege, - la figure - 10 montre la partie du siege represente sur la figure 4, dans la position d'acces aux places arriere, - et la figure 11 est une vue de detail de la  In the drawings: - Figure 1 is a schematic view of a vehicle seat according to an embodiment of the invention, in the normal position of use, - Figures 2 and 3 are views similar to Figure 1, representing the seat of Figure 1 respectively in a folded shelf position and in a position of access to the rear seats of the vehicle, - Figure 4 shows a part of the seat of Figure 1 in the normal position of use, seen from the exterior of the seat (the elements for covering the seat being removed, however), - Figure 5 is a view of the part of the seat shown in Figure 4, seen from inside the seat, - Figure 6 is a view exploded view of the seat part shown in FIGS. 4 and 5, FIG. 7 is a perspective view similar to FIG. 4, showing the part of the seat in FIG. 4 during the transition from the normal position of use to the folded shelf position, - Figure 8 is a similar view al in Figure 4, shown in the continuation of the movement towards the folded shelf position, - Figure 9 shows the part of the seat shown in Figure 8, viewed from inside the seat, - Figure - 10 shows the part of the seat represented in FIG. 4, in the position for accessing the rear seats, and FIG. 11 is a detailed view of the

figure 10, vue depuis l'interieur du siege.  Figure 10, view from inside the seat.

Sur les differentes figures, les memes references  In the different figures, the same references

designent des elements identiques ou similaires.  designate identical or similar elements.

La figure 1 represente un siege de vehicule automobile 1, par exemple un siege avant, mais l' invention serait bien entendu applicable a un siege arriere, ou a un siege de rangee intermediaire dans un vehicule a plus de  FIG. 1 shows a seat of a motor vehicle 1, for example a front seat, but the invention would of course be applicable to a rear seat, or to an intermediate row seat in a vehicle with more than

deux rangees de sieges.two rows of seats.

Le siege 1 comporte une assise 2 qui est montee coulissante d' avant en arriere sur le plancher 3 du vehicule, au moyen d'une padre de glissieres 4 dont une  The seat 1 comprises a seat 2 which is slidably mounted front to rear on the floor 3 of the vehicle, by means of a padre of slides 4, one of which

seule est visible sur la figure 1.only is visible in Figure 1.

Le siege 1 comporte en outre un dossier 5 qui, dans l'exemple represente, comprend une partie superieure 6 et une partie inferieure 7. La partie inferieure 7 est montee pivotante sur l'assise 2 autour d'un premier axe horizontal transversal Y1, tandis que la partie superieure 6 du dossier est montee pivotante sur la partie inferieure 7 autour d'un deuxieme axe horizontal transversal Y2  The seat 1 also includes a backrest 5 which, in the example shown, comprises an upper part 6 and a lower part 7. The lower part 7 is pivotally mounted on the seat 2 around a first transverse horizontal axis Y1, while the upper part 6 of the backrest is pivotally mounted on the lower part 7 around a second transverse horizontal axis Y2

parallele a l'axe Y1.parallel to the Y1 axis.

Dans la position normale d'utilisation representee sur la figure 1, l'inclinaison d' ensemble du dossier 5 peut etre reglee par un utilisateur au moyen d'un mecanisme d' articulation 8, connu en soi, actionne par un premier organe de manuvre, par exemple une poignee 9, de facon a faire pivoter la partie inferieure 7 du dossier avec la partie superieure 6 autour du premier axe horizontal Y1. Le mecanisme d'articulation peut etre un mecanisme a engrenage qui entralne positivement le dossier 5 en rotation, mais pourrait egalement etre un mecanisme a grains de blocage capable de selectivement bloquer ou debloquer la rotation  In the normal position of use shown in Figure 1, the overall inclination of the backrest 5 can be adjusted by a user by means of an articulation mechanism 8, known per se, actuated by a first operating member. , for example a handle 9, so as to rotate the lower part 7 of the backrest with the upper part 6 around the first horizontal axis Y1. The articulation mechanism can be a gear mechanism which positively drives the backrest 5 in rotation, but could also be a locking grain mechanism capable of selectively blocking or unblocking the rotation

du dossier autour de l'axe Y1.of the file around the Y1 axis.

Par ailleurs, comme represente sur la figure 2, il est possible de faire pivoter la partie superieure 6 du dossier autour du deuxieme axe horizontal Y2, en manuvrant un organe d'actionnement 10 tel qu'une poignee ou autre pour debloquer un premier dispositif de blocage, la partie superieure 6 du dossier se retrouvant alors rabattue, par  Furthermore, as shown in FIG. 2, it is possible to pivot the upper part 6 of the backrest around the second horizontal axis Y2, by maneuvering an actuating member 10 such as a handle or the like to unlock a first device for blocking, the upper part 6 of the back then being folded down, by

exemple en tablette, sensiblement a l'horizontale.  example in tablet, substantially horizontal.

Comme represente sur la figure 3, il est egalement possible de faire pivoter ['ensemble du dossier 5 vers l' avant autour du premier axe horizontal Y1 vers l' avant jusque dans une position de butee cite position d'acces aux places arriere, avantageusement en commandant simultanement le deverrouillage des glissieres 4 ce qui permet par  As shown in FIG. 3, it is also possible to pivot the whole of the backrest 5 forwards around the first horizontal axis Y1 forwards until in a stop position, cited position of access to the rear seats, advantageously by simultaneously controlling the unlocking of the slides 4 which allows by

exemple de deplacer ltensemble du siege 1 vers l' avant.  example of moving the whole of seat 1 forwards.

Cette position cite d'acces aux places arrieres permet notamment de faciliter l'acces aux places arriere du vehicule ou plus generalement a un espace situe derriere le siege, par exemple si le siege 1 est un siege avant de  This cited position of access to the rear seats makes it possible in particular to facilitate access to the rear seats of the vehicle or more generally to a space located behind the seat, for example if seat 1 is a seat before

vehicule a trots portes.vehicle with three doors.

La commande de la mise en position d'acces aux places arriere peut etre realisee par exemple au moyen d'une poignee 11 situee sur le cote de la partie superieure 6 du dossier, cette poignee 11 pouvant etre par exemple reliee au moyen d'un cable gaine 12 a un deuxieme dispositif de blocage qui sera decrit plus en detail ci apres. De plus, le deverrouillage des glissieres 4 dans la position d'acces aux places arriere peut etre obtenu par exemple au moyen d'un cable gaine 13 dont une extremite est fixee a la partie inferieure 7 du dossier et dont l'autre extremite (non visible sur les dessins) est reliee a un  The control of the positioning of access to the rear seats can be carried out for example by means of a handle 11 situated on the side of the upper part 6 of the backrest, this handle 11 being able for example to be connected by means of a sheath cable 12 to a second locking device which will be described in more detail below. In addition, the unlocking of the slides 4 in the position of access to the rear seats can be obtained for example by means of a sheathed cable 13, one end of which is fixed to the lower part 7 of the backrest and the other end of which (not visible on the drawings) is connected to a

mecanisme de verrouillage des glissieres 4, connu en soi.  slide locking mechanism 4, known per se.

Comme represente sur les figures 4 a 6, la partie inferieure 7 du dossier comporte un gousset vertical metallique 14 ou flasque de support, qui est monte pivotant autour du premier axe Y1 par rapport a un flasque intermediaire metallique parallele 15, lui-meme monte pivotant par l'intermediaire du mecanisme d' articulation 8 sur un flasque metallique fixe 16, solidaire de l'assise et parallele aux flasques 14, 15 susmentionnes. La position angulaire relative entre le flasque intermediaire 15 et le flasque fixe 16 est commandee par le mecanisme d' articulation 8, tandis que le gousset 14 est selectivement immobilise ou libere en rotation autour de l'axe Y1 au moyen d'un verrou 17 appartenant au deuxieme  As shown in FIGS. 4 to 6, the lower part 7 of the backrest comprises a vertical metal gusset 14 or support flange, which is pivotally mounted around the first axis Y1 relative to a parallel metallic intermediate flange 15, itself pivotally mounted by means of the hinge mechanism 8 on a fixed metal flange 16, integral with the seat and parallel to the flanges 14, 15 above. The relative angular position between the intermediate flange 15 and the fixed flange 16 is controlled by the articulation mechanism 8, while the gusset 14 is selectively immobilized or released in rotation about the axis Y1 by means of a latch 17 belonging at the second

dispositif de blocage susmentionne.blocking device mentioned above.

Dans l'exemple represente, le verrou 17 est monte pivotant sur le gousset 14 autour d'un axe parallele aux axes Y1, Y2, entre une position verrouillee et une position deverrouillee, et ledit verrou 17 comporte une dent 18 adaptee pour penetrer sensiblement sans jeu dans une echancrure 19 du flasque intermediaire 15 en position verrouillee, de facon a immobiliser alors le gousset 14 par  In the example shown, the latch 17 is pivotally mounted on the gusset 14 about an axis parallel to the axes Y1, Y2, between a locked position and an unlocked position, and said latch 17 comprises a tooth 18 adapted to penetrate substantially without clearance in a notch 19 of the intermediate flange 15 in the locked position, so as to immobilize the gusset 14 by

rapport au flasque intermediaire 15.  compared to the intermediate flange 15.

Le verrou 17 peut avantageusement etre sollicite elastiquement vers sa position verrouillee, par exemple au moyen d'un ressort de flexion 20, et il est en outre relic a une extremite du cable gaine 12 de facon qu'un actionnement de la poignee 11 deplace ledit verrou 17 dans  The latch 17 can advantageously be resiliently biased towards its locked position, for example by means of a bending spring 20, and it is also connected to one end of the sheath cable 12 so that an actuation of the handle 11 displaces said latch lock 17 in

sa position deverrouillee.its unlocked position.

De plus, le verrou 17 est egalement relic a un flasque superieur 26 solidaire de la partie superieure 6 du dossier, par l'intermediaire d'une bielle coulissante 21 ou autre organe de couplage a mouvement perdu (la bielle coulissante 21 pourrait etre remplacee par un cable non  In addition, the latch 17 is also connected to an upper flange 26 secured to the upper part 6 of the backrest, by means of a sliding rod 21 or other coupling member with lost movement (the sliding rod 21 could be replaced by a cable no

tendu dans la position normale d'utilisation.  tensioned in the normal position of use.

La bielle coulissante 21 comporte un premier organe de couplage 23 monte coulissant sur un deuxieme organe de couplage 22, lui-meme monte pivotant vers l'extremite libre du verrou 17. Le premier organe de couplage peut se presenter sous la forme d'un fil metallique rigide dont les extremites vent en forme de crochets 24, 27. Le crochet 24 peut par exemple coulisser dans une fente 25 menagee le long du deuxieme organe de couplage, qui peut par exemple etre une plaquette de tole decoupee, tandis que le crochet 27 peut par exemple etre accroche sur une paste 28  The sliding rod 21 includes a first coupling member 23 which slides so as to slide on a second coupling member 22, which itself is pivotally mounted towards the free end of the latch 17. The first coupling member can be in the form of a wire rigid metal, the ends of which are in the form of hooks 24, 27. The hook 24 can for example slide in a slot 25 arranged along the second coupling member, which can for example be a cut sheet plate, while the hook 27 can for example be hung on a paste 28

appartenant au flasque superieur 26.  belonging to the upper flange 26.

Avantageusement, le crochet 24 se trouve dans une position intermediaire entre les extremites de la fente 25 lorsque le siege est position normale d'utilisation, comme  Advantageously, the hook 24 is in an intermediate position between the ends of the slot 25 when the seat is in the normal position of use, as

represente sur les figures 4 a 6.shown in Figures 4 to 6.

Le flasque superieur 26 est monte pivotant sur le gousset 14 autour de l'axe Y2 et dans la position normale d'utilisation representee sur les figures 4 a 6, ce flasque superieur est immobilise en rotation par rapport au gousset 14. En effet, dans cette position, d'une part, le flasque superieur 26 est empeche de pivoter vers l'arriere par appui d'un pion 50 (ou autre butee) solidaire de ce flasque contre le bord du gousset 14, et d'autre part, le flasque superieur 26 est empeche de pivoter vers l' avant par butee d'une extremite libre 29 d'une came de blocage 30 (appartenant au premier dispositif de blocage susmentionne) contre une zone de butee saillante 31 du flasque superieur 26. Dans l'exemple considere ici, la came de blocage 30 est montee pivotante sur le gousset 14 autour d'un axe de rotation parallele aux axes Y1, Y2 (cet axe de rotation est materialise par exemple par une vis 49), entre: - une position de blocage ou l'extremite libre 29 de ladite came de blocage est adaptee pour cooperer avec la zone de butee 31, - et une position de deblocage ou l'extremite libre 29 de la came de blocage n' interfere pas avec le flasque superieur 26 et permet sa libre rotation vers  The upper flange 26 is mounted to pivot on the gusset 14 around the axis Y2 and in the normal position of use shown in FIGS. 4 to 6, this upper flange is immobilized in rotation relative to the gusset 14. In fact, in this position, on the one hand, the upper flange 26 is prevented from pivoting towards the rear by pressing a pin 50 (or other stop) integral with this flange against the edge of the gusset 14, and on the other hand, the upper flange 26 is prevented from pivoting forward by a stop at a free end 29 of a locking cam 30 (belonging to the first locking device mentioned above) against a projecting stop zone 31 of the upper flange 26. In the example considered here, the locking cam 30 is pivotally mounted on the gusset 14 around an axis of rotation parallel to the axes Y1, Y2 (this axis of rotation is materialized for example by a screw 49), between: - a position of blocking or the free end 29 of said blocking cam is adapted in. ur cooperate with the stop zone 31, - and a release position or the free end 29 of the locking cam does not interfere with the upper flange 26 and allows its free rotation towards

l' avant.the front.

De plus, dans l'exemple considere ici, la came de blocage 30 est solidarisee avec une piece metallique de support 33 presentant une forme similaire a la came de blocage 30 et presentant par exemple un bec ou autre butee 33a vers l'extremite 32 de la came de blocage qui est  In addition, in the example considered here, the blocking cam 30 is secured to a metal support piece 33 having a shape similar to the blocking cam 30 and having for example a spout or other stop 33a towards the end 32 of the locking cam which is

opposee a l'extremite libre 29.opposite the free end 29.

La came de blocage 30 est reliee, a son extremite 32 opposee a l'extremite libre 29, a la poignee 10 susmentionnee. Avantageusement, la poignee 10 est montee pivotante sur la came de blocage de facon a pouvoir librement pivoter vers le teas en l' absence d'actionnement par un utilisateur (ce qui diminue alors son encombrement), et de facon a venir buter contre le bec 33a lorsqu'un utilisateur fait pivoter ladite poignee vers le haut, en entrainant alors la came de blocage 30 vers sa position de deblocage. La piece de support 33 peut comporter, vers l'extremite libre 29 de la came de blocage 30, une fente 34 dans laquelle coulisse un pion 35 solidaire d'un organe pousseur metallique 36, rigide, monte pivotant sur le  The locking cam 30 is connected, at its end 32 opposite the free end 29, to the aforementioned handle 10. Advantageously, the handle 10 is pivotally mounted on the locking cam so as to be able to freely pivot towards the teas in the absence of actuation by a user (which then reduces its size), and so as to abut against the spout 33a when a user pivots said handle upwards, then driving the locking cam 30 to its unlocking position. The support piece 33 may comprise, towards the free end 29 of the locking cam 30, a slot 34 in which slides a pin 35 secured to a metallic pusher member 36, rigid, pivotally mounted on the

gousset 14 autour d'un axe parallele aux axes Y1, Y2.  gusset 14 around an axis parallel to the axes Y1, Y2.

L'organe pousseur 36 presente avantageusement une forme de L et comporte une branche inferieure 37 (sensiblement horizontale en position de repos dans l'exemple considere) et une branche superieure 38 (sensiblement verticale en position de repos dans l'exemple considere) dont l'extremite libre est adaptee pour venir en appui contre le bord du flasque superieur de facon a le  The pusher member 36 advantageously has an L shape and comprises a lower branch 37 (substantially horizontal in the rest position in the example considered) and an upper branch 38 (substantially vertical in the rest position in the example considered) whose l free end is adapted to bear against the edge of the upper flange so as to

faire pivoter vers l' avant, comme il sera explique ci-  rotate forward, as will be explained above

apres. Dans l'exemple considere ici, le pion 35 est fixe vers l'extremite libre de la branche inferieure du L, et cette branche inferieure est montee pivotante, en une  after. In the example considered here, the pin 35 is fixed towards the free end of the lower branch of the L, and this lower branch is pivotally mounted, in a

position intermediaire sur sa longueur, sur le gousset 14.  intermediate position along its length, on the gusset 14.

Un ressort helicoidal de traction 39 est par ailleurs tendu entre: - d'une part, une paste 40 appartenant a l'organe pousseur 36 et formee sensiblement au niveau de la jonction entre la branche inferieure 37 et la branche superieure 38 de cet organe pousseur, - et d'autre part, un plot de support 41 qui est fixe a la came de blocage 30 et a la piece de support 33  A helical tension spring 39 is also stretched between: - on the one hand, a paste 40 belonging to the pusher member 36 and formed substantially at the junction between the lower branch 37 and the upper branch 38 of this pusher member , - and on the other hand, a support stud 41 which is fixed to the locking cam 30 and to the support piece 33

vers ltextremite 32 de la came de blocage.  towards the end 32 of the locking cam.

La came de blocage 30 forme ainsi avec la piece de support 33 (cette piece de support 33 pourrait le cas echeant etre supprimee, la fente 34 etant alors formee directement dans la came de blocage 29 et le bec 33a remplace par une autre butee) et l'organe de support 36, un dispositif mecanique bistable a genouillere, deplacable entre une position de repos (figure 5) et une position  The locking cam 30 thus forms with the support piece 33 (this support piece 33 could, if necessary, be removed, the slot 34 then being formed directly in the locking cam 29 and the spout 33a replaced by another stop) and the support member 36, a mechanical bistable toggle joint device, movable between a rest position (FIG. 5) and a position

active (figures 7 et 9).active (Figures 7 and 9).

Lorsque la came de blocage 30 se trouve en position de blocage, le point d' articulation entre la came de blocage et la branche inferieure 37 de l'organe pousseur 36, c'est-a-dire le pion 35, se trouve au-dessus de la ligne de traction du ressort 39, de sorte que le ressort 39 a pour effet de solliciter la came de blocage 30 vers sa position de blocage et de solliciter ltorgane pousseur 36 vers une position de repos ou sa branche superieure 38 est  When the locking cam 30 is in the locking position, the articulation point between the locking cam and the lower branch 37 of the pusher member 36, that is to say the pin 35, is located above the line of traction of the spring 39, so that the spring 39 has the effect of urging the locking cam 30 towards its locking position and of urging the pusher member 36 towards a rest position where its upper branch 38 is

eloignee du flasque superieur 26 (voir figure 5).  away from the upper flange 26 (see FIG. 5).

En revanche, lorsqu'un utilisateur commence a deplacer la came de blocage 30 vers sa position de deblocage au moyen de la poignee 10, des que le pion 35 passe au-dessous de la ligne de traction du ressort 39 (voir figure 7), alors de ressort 39 sollicite la came de blocage 30 vers sa position de deblocage et deplace simultanement l'organe de poussee 36 de facon que l'extremite libre de sa branche superieure 38 vienne en appui contre le flasque superieur 26 en lui donnant une impulsion qui tend a le faire tourner dans le sens  On the other hand, when a user begins to move the locking cam 30 to its unlocking position by means of the handle 10, as soon as the pin 35 passes below the line of traction of the spring 39 (see FIG. 7), then spring 39 urges the locking cam 30 towards its unlocking position and simultaneously moves the thrust member 36 so that the free end of its upper branch 38 comes to bear against the upper flange 26 giving it an impulse which tends to make it turn in the direction

angulaire 43, c'est-a-dire en pivotant vers l' avant.  angular 43, that is to say by pivoting forwards.

Au cours du debut de ce mouvement de rabattement de la partie superieure du dossier, l'organe de couplage 23 de la bielle 22 est tire par le flasque superieur 26, jusqu'a ce que le crochet 24 vienne buter contre l'extremite  During the beginning of this folding movement of the upper part of the backrest, the coupling member 23 of the connecting rod 22 is pulled by the upper flange 26, until the hook 24 abuts against the end

superieure de la fente 25 dans laquelle il coulisse.  upper of the slot 25 in which it slides.

Dans la suite du mouvement de rabattement du dossier dans le sens angulaire 43, comme represente sur les figures 8 et 9, la bielle coulissante 21 tire le verrou 17 vers le haut jusqu'a sa position de deblocage, ce qui libere le gousset 14 par rapport au flasque intermediaire 15. Le gousset 14 pivote alors egalement dans le sens angulaire 43 (la rotation du gousset 14 dans le sens inverse peut avantageusement et re interdite par un bos sage 44 du gousset 14 qui coopere avec une butee 45 du flasque  In the rest of the movement of folding the backrest in the angular direction 43, as shown in FIGS. 8 and 9, the sliding rod 21 pulls the latch 17 upwards to its unlocking position, which releases the gusset 14 by relative to the intermediate flange 15. The gusset 14 then also pivots in the angular direction 43 (the rotation of the gusset 14 in the opposite direction can advantageously and re prohibited by a wise bos 44 of the gusset 14 which cooperates with a stop 45 of the flange

intermediaire 15).intermediate 15).

Ce mouvement de pivotement du gousset 14 s'arrete lorsque le pion 35 vient angulairement en butee contre une paste saillante 46 appartenant au flasque fixe: ainsi, le gousset 14 et la partie inferieure 7 du dossier se retrouvent touj ours dans la meme position angulaire dans la position rabattue en tablette, quel que soit le reglage angulaire initial du dossier, ce qui garantit que la partie superieure 6 du dossier se retrouve dans une position predeterminee, sensiblement horizontale. On notera que le pion 35 n' interfere avec la paste 46 que lorsque la bielle 30 est en position de deblocage, c'est a dire lorsque le  This pivoting movement of the gusset 14 stops when the pin 35 angularly abuts against a projecting paste 46 belonging to the fixed flange: thus, the gusset 14 and the lower part 7 of the backrest are always found in the same angular position in the folded shelf position, regardless of the initial angular adjustment of the backrest, which guarantees that the upper part 6 of the backrest is in a predetermined position, substantially horizontal. It will be noted that the pin 35 does not interfere with the paste 46 until the connecting rod 30 is in the unlocked position, that is to say when the

dispositif bistable est en position active.  bistable device is in active position.

Bien entendu, la position de butee du gousset 14 dans la position de rabattement en tablette pourrait etre determinee par toutes autres butees que celle decrite ci  Of course, the stop position of the gusset 14 in the folded shelf position could be determined by any other stops than that described here.

dessus.above.

Par ailleurs, lorsqu'un utilisateur veut rabattre le dossier vers l' avant dans la position d'acces aux places arriere visible sur la figure 3, il actionne la poignee 11 de la partie superieure du dossier, ce qui tire sur le cable gaine 12, lequel deplace alors le verrou 17 dans sa  Furthermore, when a user wants to fold the backrest forward in the position for accessing the rear seats visible in FIG. 3, he actuates the handle 11 of the upper part of the backrest, which pulls on the sheath cable 12 , which then moves the latch 17 in its

position de deblocage, comme represente sur la figure 10.  release position, as shown in figure 10.

Comme le crochet 24 de la bielle coulissante 21 se trouvait initialement dans une position intermediaire entre les deux extremites de la fente 25, les organes de couplage  As the hook 24 of the sliding rod 21 was initially in an intermediate position between the two ends of the slot 25, the coupling members

22, 23 n'interferent pas avec ce mouvement du verrou 17.  22, 23 do not interfere with this movement of the latch 17.

Le gousset 14 pivote alors vers l' avant avec ['ensemble du dossier 5, jusqu'a ce qu'une paste saillante 47 ou autre butee solidaire du gousset 14 ou d'une autre partie du dossier 5 vienne en appui contre une butee 48  The gusset 14 then pivots forward with the entire backrest 5, until a protruding paste 47 or other stop secured to the gusset 14 or another part of the backrest 5 comes to bear against a stop 48

solidaire de l'assise (voir figure 3).  secured to the seat (see Figure 3).

On notera que, dans cette position d'acces aux places arrieres, le pion 35 ou une autre partie saillante solidaire de la came de blocage 30 se trouve avantageusement en correspondence avec la paste saillante susmentionnee 46 du flasque fixe 16, ou avec toute autre butee, de facon a empecher alors un utilisateur d'actionner intempestivement la poignee 10 dans cette position, ce qui  It will be noted that, in this position of access to the rear seats, the pin 35 or another projecting part secured to the locking cam 30 is advantageously in correspondence with the above-mentioned projecting paste 46 of the fixed flange 16, or with any other stop , so as to prevent a user from inadvertently actuating the handle 10 in this position, which

provoquerait un disfonctionnement du siege.  would cause the seat to malfunction.

Claims (11)

REVENDICATIONS 1. Siege de vehicule comportant un dossier (5) et une assise (2), le dossier comprenant au moins une partie superieure (6) montee pivotante et reliee a une armature de support (14) par un premier mecanisme de blocage (30) deplacable entre d'une part, une position de blocage ou ledit premier mecanisme de blocage solidarise la partie superieure (6) du dossier avec ['armature de support (14) au moins dans une position angulaire d'utilisation normale, et d'autre part une position de deblocage ou ledit premier mecanisme de blocage permet une libre rotation de la partie superieure du dossier, le premier mecanisme de blocage etant commande par un premier organe de manuvre (10) pour debloquer la partie superieure du dossier en rotation, au moins pour la rabattre depuis la position d'utilisation normale jusqu'a une position rabattue, caracterise en ce que le premier organe de manuvre (10) commande un dispositif mecanique bistable (30, 35, 36, 39) qui comprend un organe pousseur (36) deplacable entre une position de repos et une position active ou ledit organe pousseur est adapte pour pousser la partie superieure (6) du dossier vers sa position rabattue, le dispositif mecanique bistable (30, 35, 36, 39) etant adapte pour solliciter elastiquement l'organe pousseur (36) vers sa position de repos lorsque le premier mecanisme de blocage (30) est proche de sa position de blocage et vers sa position active lorsque ledit premier mecanisme de blocage  1. Vehicle seat comprising a backrest (5) and a seat (2), the backrest comprising at least one upper part (6) pivotally mounted and connected to a support frame (14) by a first blocking mechanism (30) displaceable between on the one hand, a blocking position or said first blocking mechanism secures the upper part (6) of the backrest with the support frame (14) at least in an angular position for normal use, and on the other apart from an unlocking position where said first blocking mechanism allows free rotation of the upper part of the backrest, the first blocking mechanism being controlled by a first operating member (10) to unlock the upper part of the file in rotation, at least for folding it from the normal use position to a folded position, characterized in that the first operating member (10) controls a bistable mechanical device (30, 35, 36, 39) which comprises a pusher member (36 ) movable between a rest position and an active position where said pusher member is adapted to push the upper part (6) of the backrest towards its folded position, the bistable mechanical device (30, 35, 36, 39) being adapted to elastically stress the pushing member (36) to its rest position when the first blocking mechanism (30) is close to its blocking position and to its active position when said first blocking mechanism est proche de sa position de deblocage.  is close to its unlocking position. 2. Siege selon la revendication 1, dans lequel le dossier comprend une partie inferieure (7) comprenant une armature de support (14) qui est montee pivotante sur une armature intermediaire (15) autour d'un premier axe de rotation horizontal transversal (Y1), laquelle armature intermediaire est montee pivotante sur l'assise (2) autour du premier axe (Y1) au moyen d' un mecanisme d' articulation (8) adapte pour permettre a un utilisateur de regler une position angulaire du dossier par rapport a l'assise, la partie superieure (6) du dossier etant montee pivotante sur l' armature de support (14) autour d'un deuxieme axe de rotation horizontal transversal (Y2) parallele au premier axe.  2. Seat according to claim 1, wherein the backrest comprises a lower part (7) comprising a support frame (14) which is pivotally mounted on an intermediate frame (15) around a first transverse horizontal axis of rotation (Y1 ), which intermediate frame is pivotally mounted on the seat (2) around the first axis (Y1) by means of an articulation mechanism (8) adapted to allow a user to adjust an angular position of the backrest relative to the seat, the upper part (6) of the backrest being pivotally mounted on the support frame (14) around a second transverse horizontal axis of rotation (Y2) parallel to the first axis. 3. Siege selon la revendication 1 ou la revendication 2, dans lequel le premier mecanisme de blocage comprend une came de blocage (30) qui est adaptee pour cooperer par butee avec le flasque de support (14) pour bloquer ledit flasque de support lorsque ledit premier3. Seat according to claim 1 or claim 2, wherein the first locking mechanism comprises a locking cam (30) which is adapted to cooperate by abutment with the support flange (14) to block said support flange when said first mecanisme de blocage est en position de blocage.  blocking mechanism is in blocking position. 4. Siege selon la revendication 3, dans lequel le dispositif mecanique bistable (30, 35, 36, 39) comprend ladite came de blocage (30), qui est articulee a l'organe  4. Seat according to claim 3, wherein the mechanical bistable device (30, 35, 36, 39) comprises said locking cam (30), which is articulated to the member pousseur (36) en formant un mecanisme a genouillere.  pusher (36) by forming a toggle mechanism. 5. Siege selon la revendication 4, dans laquel la came de blocage (30) et l'organe pousseur (36) vent montes pivotants sur le flasque de support (14), et vent relies entre eux par un ressort de traction (39) qui sollicite elastiquement l'organe pousseur vers sa position de repos et la came de blocage vers la position de blocage lorsque ladite came de blocage est proche de sa position de blocage, et qui sollicite elastiquement ltorgane pousseur vers sa position active et la came de blocage vers sa position de deblocage lorsque ladite came de blocage est  5. Seat according to claim 4, in which the locking cam (30) and the pusher member (36) are pivotally mounted on the support flange (14), and wind connected together by a tension spring (39) which elastically urges the pusher member towards its rest position and the blocking cam towards the blocking position when said blocking cam is close to its blocking position, and which elastically biases the pusher member towards its active position and the blocking cam towards its unlocking position when said locking cam is proche de sa position de deblocage.close to its unlocking position. 6. Siege selon l'une quelconque des revendications  6. Seat according to any one of the claims precedentes, dans lequel: - l'armature de support (14) est reliee au mecanisme d' articulation (8) au moyen d'une armature intermediaire (15) montee pivotante par rapport a l'assise (2) autour du premier axe, l' armature intermediaire etant reliee a l'assise par le mecanisme d'articulation, - l'armature de support (14) est reliee a l' armature intermediaire (15) au moyen d'un deuxieme mecanisme de blocage (17) deplacable entre d'une part, une position de verrouillage ou ledit deuxieme mecanisme de blocage immobilise l' armature de support par rapport a l' armature intermediaire, et d'autre part, une position de deverrouillage ou ledit deuxieme mecanisme de blocage permet a l' armature de support de pivoter librement par rapport a l' armature intermediaire autour du premier axe  previous, in which: - the support frame (14) is connected to the articulation mechanism (8) by means of an intermediate frame (15) pivotally mounted relative to the seat (2) around the first axis, the intermediate frame being connected to the seat by the articulation mechanism, - the support frame (14) is connected to the intermediate frame (15) by means of a second blocking mechanism (17) movable between d on the one hand, a locking position or said second blocking mechanism immobilizes the support frame relative to the intermediate frame, and on the other hand, an unlocking position or said second blocking mechanism allows the support frame pivot freely relative to the intermediate reinforcement around the first axis (Y1),(Y1), - le deuxieme dispositif de blocage (17) est relic a la partie superieure (6) du dossier par un dispositif mecanique de couplage (21) qui est adapte pour deplacer ledit deuxieme mecanisme de blocage dans sa position de deverrouillage lorsque la partie superieure du dossier est dans sa position rabattue et pour permettre audit deuxieme mecanisme de blocage de se placer en position de verrouillage lorsque la partie superieure du dossier est en position d'utilisation, - et le dossier (5) est adapte pour cooperer par butee avec l'assise (2) lorsque la partie superieure (6) du dossier est en position rabattue, pour limiter le  - The second locking device (17) is connected to the upper part (6) of the backrest by a mechanical coupling device (21) which is adapted to move said second locking mechanism in its unlocking position when the upper part of the backrest is in its folded position and to allow said second blocking mechanism to be in the locked position when the upper part of the backrest is in the use position, - and the backrest (5) is adapted to cooperate with the stop with the seat (2) when the upper part (6) of the backrest is in the folded position, to limit the rabattement du dossier vers l' avant.  folding the backrest forward. 7. Siege selon la revendication 6, dans lequel le deuxieme dispositif de blocage (17) est relic a un deuxieme organe de manuvre (11) accessible a un utilisateur pour deplacer ledit deuxieme dispositif de blocage de sa position de verrouillage a sa position de deverrouillage, le dispositif mecanique de couplage (21) etant adapte pour permettre ce deplacement du deuxieme mecanisme de blocage (17) lorsque la partie superieure du dossier (6) est en  7. Seat according to claim 6, wherein the second blocking device (17) is connected to a second operating member (11) accessible to a user for moving said second blocking device from its locked position to its unlocked position. , the mechanical coupling device (21) being adapted to allow this displacement of the second locking mechanism (17) when the upper part of the backrest (6) is in position d'utilisation normale.normal use position. 8. Siege selon la revendication 7, dans loquel le dossier (5) est rabattable dans son ensemble vers l' avant jusqu'a une position de butee lorequ' on actionne le deuxieme organe de manuvre (11), et le premier dispositif de blocage (30) est adapte pour interferer avec l'assise (2) en empechant le deplacement audit premier dispositif de blocage de sa position de blocage vers sa position de deblocage lorsque le dossier est dans ladite position de butee.  8. Seat according to claim 7, in which the backrest (5) is foldable as a whole forward to a stop position when the second operating member (11) is actuated, and the first locking device (30) is adapted to interfere with the seat (2) by preventing movement of said first locking device from its locking position to its unlocking position when the backrest is in said abutment position. 9. Siege selon l'une quelconque des revendications  9. Seat according to any one of the claims 6 a 8, dans lequel le dispositif mecanique de couplage (21) comporte des premier et deuxieme organes de couplage (23, 22) qui vent montes coulissants l'un par rapport a l'autre entre des premiere et deuxieme positions de butee et qui vent relies respectivement a la partie superieure du dossier (6) et au deuxieme mecanisme de blocage (17), les premier et deuxieme organes de couplage etant disposes pour que le premier organe de couplage (23) soit deplace jusqu'a la premiere position de butee par rapport au deuxieme organe de couplage (22) lorsque la partie superieure du dossier (6) est en position rabattue, en entralnant alors avec lui le deuxieme mecanisme de blocage de sa position  6 to 8, in which the mechanical coupling device (21) comprises first and second coupling members (23, 22) which are slidably mounted relative to one another between first and second stop positions and which wind connected respectively to the upper part of the backrest (6) and to the second blocking mechanism (17), the first and second coupling members being arranged so that the first coupling member (23) is moved to the first position of stop relative to the second coupling member (22) when the upper part of the backrest (6) is in the folded position, then entraining with it the second mechanism for blocking its position verrouillee a sa position deverrouillee.  locked in its unlocked position. 10. Siege selon la revendication 9, dans lequel le dispositif mecanique de couplage (21) est con,cu pour que le premier organe de couplage (23) se trouve dans une position de repos distincte de la premiere position de butee par rapport au deuxieme organe de couplage (22) lorsque la partie superieure du dossier (6) est dans sa position d'utilisation normale par rapport a l' armature de support (14) et que le deuxieme dispositif de blocage (17) est dans sa position de verrouillage, cette position de repos etant adaptee pour que le premier organe de couplage (23) n'entralne le deuxieme dispositif de blocage (17) dans sa position deverrouillee qu'apres une certaine course angulaire de la partie superieure du dossier (6) vers sa  10. Seat according to claim 9, wherein the mechanical coupling device (21) is con, cu so that the first coupling member (23) is in a rest position distinct from the first stop position relative to the second coupling member (22) when the upper part of the backrest (6) is in its normal use position relative to the support frame (14) and the second locking device (17) is in its locking position, this rest position being adapted so that the first coupling member (23) does not center the second locking device (17) in its unlocked position until after a certain angular travel from the upper part of the backrest (6) towards its position rabattue.folded position. 11. Siege selon la revendication 10, dans lequel le dispositif mecanique bistable (30, 35, 36, 39) comporte une butee (35) qui est disposer pour interferer avec une contrebutee (46) solitaire de l'assise (2) en limitant le rabattement du dossier vers l' avant lorsque le dispositif mecanique bistable est en position active, ladite butee (35) etant disposee pour ne pas interferer avec ladite contrebutee (46) lorsque le dispositif mecanique bistable  11. Seat according to claim 10, wherein the mechanical bistable device (30, 35, 36, 39) comprises a stop (35) which is arranged to interfere with a buttress (46) solitary of the seat (2) by limiting folding the backrest forward when the bistable mechanical device is in the active position, said stopper (35) being arranged so as not to interfere with said abutment (46) when the bistable mechanical device
FR0206499A 2002-05-28 2002-05-28 VEHICLE SEAT Expired - Fee Related FR2840267B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869849A1 (en) * 2004-05-10 2005-11-11 Faurecia Sieges Automobile VEHICLE SEAT
FR2898557A1 (en) * 2006-03-17 2007-09-21 Faurecia Sieges Automobile Motor vehicle seat`s backrest locking mechanism for e.g. accessing rear places of vehicle, has mobile elements with lugs locking fixed element by being supported on wedging sides, and corners maintaining mobile elements in support position
FR2899161A1 (en) * 2006-03-30 2007-10-05 Renault Sas Motor vehicle e.g. side door vehicle, seat for e.g. accessing rear part, has upper support part mounted pivoting on lower connection part, to control stop pad, mobile hook, radial stop, radial slot and control cable
FR2914240A3 (en) 2007-04-02 2008-10-03 Renault Sas Seat for motor vehicle, has finger mounted in translation on articulation zones for being stopped against stop in locked position and slid on surface in unlocked position to permit free rotation of posts, and handle for actuating finger
US9713970B1 (en) 2016-03-08 2017-07-25 Honda Motor Co., Ltd. Handle for a vehicle seat

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR799420A (en) 1935-03-12 1936-06-12 Self-propelled device for plane or rotary lift system
FR2071277A5 (en) * 1969-12-23 1971-09-17 Peugeot & Renault
EP0263003A1 (en) * 1986-09-12 1988-04-06 A. & M. COUSIN Etablissements COUSIN FRERES Articulation device for the disengagement over a certain angular value, permitting a large displacement of the backrest over the seat cushion of a seat
US5174630A (en) * 1990-07-30 1992-12-29 Bertrand Faure Automobile Resilient seat back return device
FR2799420A1 (en) * 1999-10-08 2001-04-13 Faure Bertrand Equipements Sa Car seat has seat back in two parts, linked by an armature free to rotate relatively to the a connection and a support linked to the armature via the locking mechanism controlled by the position of the upper part of the seat back
FR2804386A1 (en) * 2000-02-02 2001-08-03 Faure Bertrand Equipements Sa Seat, for vehicle, has back, which folds into flat forward position, from upright used position, through intermediate position, with lock release operated a second time in same sense to allow release from intermediate position.
US6328381B1 (en) * 1997-04-08 2001-12-11 Bertrand Faure Components Ltd. Single control handle release mechanism for use with a vehicle seat
US6336679B1 (en) * 1998-01-28 2002-01-08 Bertrand Faure Components Ltd. Rotary recliner control mechanism for multifunction vehicle seat applications

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR799420A (en) 1935-03-12 1936-06-12 Self-propelled device for plane or rotary lift system
FR2071277A5 (en) * 1969-12-23 1971-09-17 Peugeot & Renault
EP0263003A1 (en) * 1986-09-12 1988-04-06 A. & M. COUSIN Etablissements COUSIN FRERES Articulation device for the disengagement over a certain angular value, permitting a large displacement of the backrest over the seat cushion of a seat
US5174630A (en) * 1990-07-30 1992-12-29 Bertrand Faure Automobile Resilient seat back return device
US6328381B1 (en) * 1997-04-08 2001-12-11 Bertrand Faure Components Ltd. Single control handle release mechanism for use with a vehicle seat
US6336679B1 (en) * 1998-01-28 2002-01-08 Bertrand Faure Components Ltd. Rotary recliner control mechanism for multifunction vehicle seat applications
FR2799420A1 (en) * 1999-10-08 2001-04-13 Faure Bertrand Equipements Sa Car seat has seat back in two parts, linked by an armature free to rotate relatively to the a connection and a support linked to the armature via the locking mechanism controlled by the position of the upper part of the seat back
FR2804386A1 (en) * 2000-02-02 2001-08-03 Faure Bertrand Equipements Sa Seat, for vehicle, has back, which folds into flat forward position, from upright used position, through intermediate position, with lock release operated a second time in same sense to allow release from intermediate position.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869849A1 (en) * 2004-05-10 2005-11-11 Faurecia Sieges Automobile VEHICLE SEAT
FR2898557A1 (en) * 2006-03-17 2007-09-21 Faurecia Sieges Automobile Motor vehicle seat`s backrest locking mechanism for e.g. accessing rear places of vehicle, has mobile elements with lugs locking fixed element by being supported on wedging sides, and corners maintaining mobile elements in support position
FR2899161A1 (en) * 2006-03-30 2007-10-05 Renault Sas Motor vehicle e.g. side door vehicle, seat for e.g. accessing rear part, has upper support part mounted pivoting on lower connection part, to control stop pad, mobile hook, radial stop, radial slot and control cable
FR2914240A3 (en) 2007-04-02 2008-10-03 Renault Sas Seat for motor vehicle, has finger mounted in translation on articulation zones for being stopped against stop in locked position and slid on surface in unlocked position to permit free rotation of posts, and handle for actuating finger
US9713970B1 (en) 2016-03-08 2017-07-25 Honda Motor Co., Ltd. Handle for a vehicle seat

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