FR2705288A1 - Articulation for motor vehicle seats - Google Patents

Articulation for motor vehicle seats Download PDF

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Publication number
FR2705288A1
FR2705288A1 FR9305909A FR9305909A FR2705288A1 FR 2705288 A1 FR2705288 A1 FR 2705288A1 FR 9305909 A FR9305909 A FR 9305909A FR 9305909 A FR9305909 A FR 9305909A FR 2705288 A1 FR2705288 A1 FR 2705288A1
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FR
France
Prior art keywords
flange
fixed
seat
articulation
cover
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
FR9305909A
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French (fr)
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FR2705288B1 (en
Inventor
Baloche Francois
Reubeuze Yann
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BFA
Original Assignee
BFA
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Publication date
Application filed by BFA filed Critical BFA
Priority to FR9305909A priority Critical patent/FR2705288B1/en
Publication of FR2705288A1 publication Critical patent/FR2705288A1/en
Application granted granted Critical
Publication of FR2705288B1 publication Critical patent/FR2705288B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B60N2/22—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 adjustable
    • B60N2/225—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 adjustable by cycloidal or planetary mechanisms
    • B60N2/2251—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 adjustable by cycloidal or planetary mechanisms with gears having orbital motion, e.g. sun and planet gears
    • 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
    • B60N2/22—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 adjustable
    • B60N2/225—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 adjustable by cycloidal or planetary mechanisms
    • B60N2/2252—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 adjustable by cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
    • 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
    • B60N2/22—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 adjustable
    • B60N2/235—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 adjustable by gear-pawl type mechanisms
    • B60N2/2356—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 adjustable by gear-pawl type mechanisms with internal pawls

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Articulation for motor vehicle seats including, on one side, a circular fixed plate and, on the other side, a moving plate which is also circular and covered with a cover holding this moving plate and the mechanism placed inside between the fixed plate and the moving plate, it being understood that the fixed plate includes projections allowing this plate to be fastened onto one of the elements of the seat while the moving plate includes bosses arranged at 120 DEG from one another to allow it to be fastened onto the other element of the seat, the articulation being characterised in that the cover (8) fixed to the perimeter of the fixed plate has curved oblong openings (9) the separations between which, which are in the form of thin webs (10), form travel limiting stops in conjunction with the bosses (11) of the moving plate.

Description

On connaît depuis longtemps des articulations utili sées, soit pour régler l'inclinaison du dossier d'un siège de véhicule, soit pour régler la hauteur de l'assise de ce siège. Known joints have long been used, either to adjust the inclination of the back of a vehicle seat, or to adjust the height of the seat.

Ces articulations sont de deux sortes, principalement soit avec deux flasques allongés destinés a permettre la fixation de l'articulation, d'une part, sur la partie fixe du siège considéré et, d'autre part, sur la partie mobile soit au contraire, avec des flasques circulaires présentant, sur leur surface extérieure, des appendices permettant la fixation de ces flasques circulaires tour à tour sur la partie fixe ou sur la partie mobile du siège. These articulations are of two kinds, mainly either with two elongated flanges intended to allow the fixing of the articulation, on the one hand, on the fixed part of the seat considered and, on the other hand, on the mobile part, or on the contrary, with circular flanges having, on their outer surface, appendages allowing the fixing of these circular flanges in turn on the fixed part or on the mobile part of the seat.

De plus, les mécanismes utilisés dans ces articulations sont tous connus et appartiennent soit au type "continu" avec ou sans satellite, soit au type "discontinu", c'est-àdire avec au moins un grain, en général trois, répartis a 120 les uns des autres et coopérant avec une denture intérieure formant une couronne mobile. In addition, the mechanisms used in these articulations are all known and belong either to the "continuous" type with or without satellite, or to the "discontinuous" type, that is to say with at least one grain, in general three, distributed at 120 from each other and cooperating with an internal toothing forming a movable crown.

Dans le cas d'articulations a flasques circulaires, il était nécessaire de prévoir des butées angulaires limitant la course du flasque mobile par rapport au flasque fixe et ces butées étaient réalisées a l'aide de pieces supplémentaires montées en dehors du mécanisme d'articulation, ce qui coûte cher et n'était pas toujours facile à disposer. In the case of articulations with circular flanges, it was necessary to provide angular stops limiting the travel of the movable flange relative to the fixed flange and these stops were produced using additional parts mounted outside the articulation mechanism, which is expensive and was not always easy to dispose of.

La présente étude a donc pour but de créer une articulation simple, circulaire, pouvant recevoir un mécanisme "continu" ou "discontinu" et comportant les butées angulaires directement placées sur le mécanisme. The aim of this study is therefore to create a simple, circular articulation capable of receiving a "continuous" or "discontinuous" mechanism and comprising the angular stops directly placed on the mechanism.

Conformément a l'invention, l'articulation pour sièges de véhicules automobiles, comporte, d'un côte, un flasque fixe circulaire et. de l autre 1lfl un flasque mobile également circulaire revêtu d'un couvercle maintenant ce flasque mobile et le mecanisme placé i 'intérieur entre le flasque fixe et le flasque mobile, étant entendu que le flasque fixe comporte des protubérances permettant la fixation de ce flasque sur l'un des éléments du siege alors que le flasque mobile comporte des bossages disposés à 120 les uns des autres pour permettre sa fixation sur l'autre élément du siège, puis le couvercle fixé sur le pourtour du flasque fixe présente des ouvertures oblonges courbes dont les séparations, en forme de bretelles, forment des butées de course en liaison avec les bossages du flasque mobile. According to the invention, the articulation for seats of motor vehicles, comprises, on one side, a circular fixed flange and. on the other 11fl a mobile circular flange also covered with a cover holding this mobile flange and the mechanism placed inside between the fixed flange and the mobile flange, it being understood that the fixed flange has protuberances allowing the fixing of this flange on one of the elements of the seat while the movable flange has bosses arranged at 120 from one another to allow its attachment to the other element of the seat, then the cover fixed on the periphery of the fixed flange has curved oblong openings of which the separations, in the form of straps, form travel stops in connection with the bosses of the movable flange.

Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit. Various other characteristics of the invention will also emerge from the detailed description which follows.

Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple non limitatif, aux dessins annexés. An embodiment of the object of the invention is shown, by way of nonlimiting example, in the accompanying drawings.

La fig. 1 est une vue de face de l'articulation munie de son couvercle présentant des ouvertures oblonges courbes délimitant les butées formées par les bretelles. Fig. 1 is a front view of the joint provided with its cover having curved oblong openings delimiting the stops formed by the straps.

La fig. 2 est une coupe suivant la ligne II-II de la fig. 1. Fig. 2 is a section along line II-II of FIG. 1.

A la fig. 2, on a représente le flasque circulaire fixe 1 présentant, sur sa face arriere, les protubérances 2 permettant la fixation de cette pièce sur l'un des éléments du siège, par exemple l'armature de l'assise du siège. In fig. 2, there is shown the fixed circular flange 1 having, on its rear face, the protrusions 2 allowing the attachment of this part on one of the elements of the seat, for example the frame of the seat cushion.

Dans le cas présent, le flasque fixe 1 comporte une denture intérieure 3 coopérant avec la denture 4 du flasque mobile 5 avec interposition dans la partie centrale du mécanisme d'une pièce 6 logé par sa partie arrière 6a en forme de moyeu dans un évidement 7 du flasque fixe 1 et portant par sa couronne 6b décentrée par rapport au flasque 1, le flasque mobile 5 afin, dans le cas présent, d'obtenir un mécanisme "continu" sans satellite. In the present case, the fixed flange 1 has an internal toothing 3 cooperating with the toothing 4 of the movable flange 5 with interposition in the central part of the mechanism of a part 6 housed by its rear part 6a in the form of a hub in a recess 7 of the fixed flange 1 and carrying by its crown 6b offset relative to the flange 1, the movable flange 5 so, in this case, to obtain a "continuous" mechanism without satellite.

Le flasque mobi]e 5 est maintenu S lo flasque fixe 1 par un couvercle 8 dont la face parll0ffile à la partie extérieure du flasque mobile 5 coninrte des ouvertures O do forme allongée (sensiblement sur 8C^) limitant entre elles des bretelles 10. Les bossages 11 du flasque mobile 5 passent à travers les ouvertures 9 pour permettre leur fixation sur l'autre partie du siège, dans le cas présent, l'armature du dossier du siège. Les bretelles 10 forment des butées de courses angulaires pour les bossages 11 délimitant ainsi l'inclinaison minimale et maximale du dossier par rapport à l'assise du siège considéré. The flange mobi] e 5 is held S lo fixed flange 1 by a cover 8 whose face parll0ffile to the outer part of the movable flange 5 coninrte openings O do elongated shape (substantially on 8C ^) limiting between them straps 10. The bosses 11 of the movable flange 5 pass through the openings 9 to allow their attachment to the other part of the seat, in this case, the frame of the seat back. The straps 10 form angular travel stops for the bosses 11 thus delimiting the minimum and maximum inclination of the backrest relative to the seat of the seat considered.

Le couvercle 8 est, en général, fixé par sertissage sur le pourtour extérieur du flasque fixe 1, ce couvercle étant réalisé en tôle généralement par emboutissage. The cover 8 is, in general, fixed by crimping on the outer periphery of the fixed flange 1, this cover being made of sheet metal generally by stamping.

I1 est possible également, à l'aide du montage décrit ci-dessus, de remplacer le mécanisme "continu" par un mécanisme "discontinu", les grains, en général trois disposés à 120t les uns des autres, étant guidés convenablement dans des alvéoles du flasque fixe 1 et le mouvement de ces grains, qui coopèrent par leur face supérieure dentée avec la couronne dentée 4 du flasque mobile 5, étant obtenu par une came montée à la place du moyeu 6, came centrée sur un arbre de commande centré sur l'axe A-A1 (voir fig. 2), les autres pièces de l'articulation étant disposées de maniere identique  I1 is also possible, using the assembly described above, to replace the "continuous" mechanism with a "discontinuous" mechanism, the grains, generally three arranged 120t apart, being suitably guided in cells of the fixed flange 1 and the movement of these grains, which cooperate by their toothed upper face with the toothed crown 4 of the movable flange 5, being obtained by a cam mounted in place of the hub 6, cam centered on a control shaft centered on axis A-A1 (see fig. 2), the other parts of the joint being arranged identically

Claims (2)

REVENDICATIONS 1 - Articulation pour sièges de véhicules automobiles, comportant d'un côté, un flasque fixe circulaire et, de l'autre côté, un flasque mobile également circulaire revêtu d'un couvercle maintenant ce flasque mobile et le mécanisme placé à l'intérieur entre le flasque fixe et le flasque mobile, étant entendu que le flasque fixe comporte des protubérances permettant la fixation de ce flasque sur l'un des éléments du siège alors que le flasque mobile comporte des bossages disposés à 120 les uns des autres pour permettre sa fixation sur l'autre élément du siège, caractérisée en ce que le couvercle (8) fixé sur le pourtour du flasque fixe, présente des ouvertures (9) oblonges courbes dont les séparations, en forme de bretelles (10), forment des butées de course en liaison avec les bossages (11) du flasque mobile. 1 - Joint for motor vehicle seats, comprising on one side a circular fixed flange and, on the other side, a also circular mobile flange coated with a cover holding this mobile flange and the mechanism placed inside between the fixed flange and the mobile flange, it being understood that the fixed flange has protuberances allowing the fixing of this flange on one of the elements of the seat while the mobile flange has bosses arranged at 120 from one another to allow its fixing on the other element of the seat, characterized in that the cover (8) fixed on the periphery of the fixed flange, has curved oblong openings (9) whose separations, in the form of straps (10), form travel stops in connection with the bosses (11) of the movable flange. 2 - Articulation suivant la revendication 1, caractérisée en ce que les ouvertures (9) créées dans le couvercle (8) sont sensiblement ouvertes chacunes sur 80 .  2 - Joint according to claim 1, characterized in that the openings (9) created in the cover (8) are substantially open each of 80.
FR9305909A 1993-05-17 1993-05-17 Joint for motor vehicle seats. Expired - Fee Related FR2705288B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9305909A FR2705288B1 (en) 1993-05-17 1993-05-17 Joint for motor vehicle seats.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9305909A FR2705288B1 (en) 1993-05-17 1993-05-17 Joint for motor vehicle seats.

Publications (2)

Publication Number Publication Date
FR2705288A1 true FR2705288A1 (en) 1994-11-25
FR2705288B1 FR2705288B1 (en) 1995-07-07

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Family Applications (1)

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FR9305909A Expired - Fee Related FR2705288B1 (en) 1993-05-17 1993-05-17 Joint for motor vehicle seats.

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FR (1) FR2705288B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795689A1 (en) * 1999-07-02 2001-01-05 Faure Bertrand Equipements Sa Lock for motor vehicle seat adjuster has semi-circular lock cam engaging stop wedge to define disc fitting into frame sections to selectively lock them
WO2013010918A1 (en) * 2011-07-20 2013-01-24 C. Rob. Hammerstein Gmbh & Co. Kg Seat fitting for a motor vehicle seat

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519441A1 (en) * 1984-05-31 1985-12-05 Aisin Seiki K.K., Kariya, Aichi SEAT CONTROL MECHANISM FOR VEHICLES
US4884844A (en) * 1987-09-01 1989-12-05 Magna International Inc. Double stage taumel gear reduction unit
GB2219735A (en) * 1988-06-14 1989-12-20 Honda Motor Co Ltd Reclining device for a vehicle seat
DE4108955A1 (en) * 1991-03-19 1992-05-07 Daimler Benz Ag Manual or motorised adjuster for vehicle seat - has gear mechanism with hypocycloid element to limit movement
DE4222405A1 (en) * 1991-07-09 1993-01-14 Aisin Seiki Adjusting device for seat back rest in motor vehicles - has upper and lower arms, with meshing toothed rings, and motor-driven shafts with eccentric and circle segments.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519441A1 (en) * 1984-05-31 1985-12-05 Aisin Seiki K.K., Kariya, Aichi SEAT CONTROL MECHANISM FOR VEHICLES
US4884844A (en) * 1987-09-01 1989-12-05 Magna International Inc. Double stage taumel gear reduction unit
GB2219735A (en) * 1988-06-14 1989-12-20 Honda Motor Co Ltd Reclining device for a vehicle seat
DE4108955A1 (en) * 1991-03-19 1992-05-07 Daimler Benz Ag Manual or motorised adjuster for vehicle seat - has gear mechanism with hypocycloid element to limit movement
DE4222405A1 (en) * 1991-07-09 1993-01-14 Aisin Seiki Adjusting device for seat back rest in motor vehicles - has upper and lower arms, with meshing toothed rings, and motor-driven shafts with eccentric and circle segments.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795689A1 (en) * 1999-07-02 2001-01-05 Faure Bertrand Equipements Sa Lock for motor vehicle seat adjuster has semi-circular lock cam engaging stop wedge to define disc fitting into frame sections to selectively lock them
WO2013010918A1 (en) * 2011-07-20 2013-01-24 C. Rob. Hammerstein Gmbh & Co. Kg Seat fitting for a motor vehicle seat
US9315122B2 (en) 2011-07-20 2016-04-19 Johnson Controls Metals and Mechanisms GmbH & Co. Seat fitting for a motor vehicle seat

Also Published As

Publication number Publication date
FR2705288B1 (en) 1995-07-07

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