EP0468843A1 - Device for articulating an arm-rest to the back of an armchair made of plastic material - Google Patents

Device for articulating an arm-rest to the back of an armchair made of plastic material Download PDF

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Publication number
EP0468843A1
EP0468843A1 EP91401921A EP91401921A EP0468843A1 EP 0468843 A1 EP0468843 A1 EP 0468843A1 EP 91401921 A EP91401921 A EP 91401921A EP 91401921 A EP91401921 A EP 91401921A EP 0468843 A1 EP0468843 A1 EP 0468843A1
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EP
European Patent Office
Prior art keywords
armrest
finger
counter
toothing
backrest
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.)
Withdrawn
Application number
EP91401921A
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German (de)
French (fr)
Inventor
Jean-Paul Guichon
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.)
Grosfillex SAS
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Grosfillex SAS
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Filing date
Publication date
Application filed by Grosfillex SAS filed Critical Grosfillex SAS
Publication of EP0468843A1 publication Critical patent/EP0468843A1/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • A47C1/0265—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism positioned under the arm-rests

Definitions

  • the present invention relates to a device for the articulation of a plastic armchair armrest on the backrest.
  • a plastic armchair generally comprises a stool constituted by a seat forming a body, on each side, with a front foot and a rear foot extended above said seat and connected together by an anteroposterior element.
  • This known chair also includes a backrest, the uprights of which are articulated on the anteroposterior profiles of the seat.
  • Said known armchair finally comprises, on each side, an armrest articulated at the rear on the uprights of the backrest and connected at the front to the anteroposterior element by a device for adjusting the inclination of this backrest.
  • each articulation comprises a pin with lug coming from molding with the rear end of the corresponding armrest and engaged, when the latter is vertical, in a conjugated buttonhole delimited by an amount of the backrest.
  • the armrest After fitting, the armrest is folded down into a substantially horizontal position, which has the effect of angularly shifting the lug of the pin relative to the notch in the buttonhole and thus making this armrest trapped in the backrest, while being able to pivot according to the relatively limited angular amplitude required for adjusting the inclination of the backrest.
  • the device for adjusting this inclination of the backrest provided on each side of the chair comprises a rack delimited by the corresponding armrest and the teeth of which cooperate selectively with a molded finger projecting from the anteroposterior element of the base.
  • This finger has a locking head trapped in the rack but spaced apart by a sufficient distance so that the finger escapes the selected tooth of said rack when the armrest considered is lifted by pivoting its journal in the backrest.
  • This arrangement allows to change the selected tooth and thus to modify the inclination of the backrest.
  • the armrest rests again on the anteroposterior element of the base.
  • the rack delimits near its rear end a passage to release the finger and release the armrest.
  • connections provided to adjust the inclination of the backrest are not extremely solid and the functional clearances are such that the rigidity of the chair is, if not compromised, at least limited.
  • the object of the present invention is to remedy these drawbacks, by improving the articulation and, in the alternative, the rack adjustment device used on each side of the chair, in such a way that robotization of the mounting of the chair becomes possible and easy to execute. quickly and economically, so that the rigidity of the chair is improved, so that finally the release of the components of each adjustment device is easier to achieve.
  • the device for the articulation of an armrest comprises two pins aligned in a substantially horizontal direction and projecting from the two sides of a console coming from molding in lateral prominence on the corresponding outer edge of the plastic backrest, these pins being intended to penetrate, by elastic deflection of downward wings of the plastic armrest, into holes in these wings to be trapped and pivot.
  • At least one of the trunnions has a chamfer inclined upwards and the median plane of the chair, to allow, when mounting by pushing down the armrest, the elastic spacing of the wings of the latter and the interlocking of the pins in the holes of said wings.
  • this armrest includes, in addition to the aforementioned articulation device, a device for adjusting the inclination of the backrest, the components of which : rack and finger indifferently belonging to the armrest in question and to the corresponding part of the base are nestable one inside the other by elastic deformation during the aforementioned thrust.
  • the rack of each adjustment device comprises at least one toothing delimited by a margin of a lumen formed in an anteroposterior support element integral with the base and on which the profiled armrest U-shaped fits, the hollows of this toothing opening onto the top of this support element and into one of the descending edges of said lumen;
  • the cooperating finger of the adjustment device considered to come from a protruding molding under the top of the armrest is shaped as a harpoon and has an extreme point intended to widen the light by elastically spreading the edges thereof, a rod of substantially equal width to that of said lumen to achieve a kind of embedding, shoulders between the point and the rod to abut against the lower edge of the edges and thus make the armrest captive of its support element and a foot projecting from one side at least for form a counter-tooth capable of penetrating selectively into the hollows of the toothing and of cooperating with the selected teeth of this toothing, the free distance between the stop shoulders and the counter-tee
  • Each rack has two symmetrical teeth opening into the edges, the finger is also symmetrical with a point with two slopes and a foot forming two counter teeth capable of cooperating with these teeth.
  • the margins of the light considered have chamfers capable of cooperating with the tip of the finger to promote clipping.
  • the chair has a stool 1, a backrest 2 and two armrests 3 independently molded in plastic, such as polypropylene loaded with calcium carbonate.
  • the stool 1 has a seat 4 forming a body on each side with a front foot 5 and a rear foot 6 which extend above said seat and are interconnected by an anteroposterior support element 7 projecting towards the rear and intended to receive an armrest 3 which fits over it.
  • each upright of the backrest comprises a lower yoke 8 (FIG. 3), the branches of which project internal pins 9 and the rear transverse wing of each rear leg 6 (FIGS. 1, 2 and 4) is integral with a sleeve 10.
  • the pins 9 and the sleeves 10 have chamfers 11 and 12 respectively, so that by exerting a push from the top to the bottom on the backrest, the branches of the yokes 8 elastically deform and fit onto the sleeves 10 until the pins 9 penetrate the bores of said sleeves by forming positive joints.
  • each armrest 3 ( Figures 1, 3 and 7 to 9) is articulated on the backrest 2 by clipping.
  • each upright of the backrest 2 comprises a console 13 coming from molding projecting outwards substantially at the level of the element 7 and the ends of this console projecting aligned pins 14 having chamfers at the top 15.
  • the inner descending wing 16 of each armrest 3 defines a through hole 17, while the outer descending wing 18 of the armrest considered delimits a hole blind 19.
  • holes 17 and 19 are aligned and intended to receive the pins 14, when a thrust is exerted from the top to the bottom on the armrest 3 in a substantially horizontal position, thrust during which the aforementioned wings deform elastically on the chamfers until the holes opposite the trunnions fit on them.
  • each armrest 3 must make it possible to clip the rear articulation and a front rack device 20 provided for adjusting the inclination of the backrest 2.
  • each device 20 comprises a rack 21 and a conjugate finger 22.
  • the rack has two teeth 23 and 24 formed in the margins of a light 25 formed in the molding element 7.
  • the toothing 23 comprises teeth 26 separated by hollows 27 which open into the lumen 25 and, similarly, the toothing 24 comprises teeth 28 separated by hollows 29 which open into the lumen 25.
  • This is delimited by flanges 30 and 31 of height "h", connected to the upper face of the element 7 by chamfers 32 and 33 extending along the teeth 26 and 28, chamfers which are intended to promote clipping.
  • Each device 20 also includes the conjugate finger 22 coming from the molding projecting under the top of the corresponding armrest 3.
  • This finger is shaped like a harpoon of cruciform section.
  • the antero-posterior branch 34 of the finger and a rib 35 makes it possible to stiffen the structure and is relatively extended, while the transverse branch 36 is that which operates the clipping, the meshing and the holding prisoner.
  • the active transverse branch 36 of the finger 22 then comprises a rod 37 connecting an end point 38 and a foot 39, 40.
  • the rod 37 has a transverse width substantially equal to that of the lumen 25 in order to produce a sort of embedding of the armrest 3 relative to the stool 1.
  • the point 38 has a slightly greater width and is intended to elastically spread the edges 30 and 31 when the armrest is pushed down, edges which return elastically when the point has crossed said edges and its shoulders 41 and 42 are capable of abutting against the edge edges to prevent the armrest from being disengaged who is thus a prisoner of element 7.
  • the counter-teeth 39 and 40 are conjugated with the rear flanks 43 (FIG. 5) of the recesses 27 and 28, these counter-teeth and flanks being in a downwardly sloping backward direction to lock the armrest in the support position.
  • the recesses 27 and 29 are also delimited by anterior flanks 44 (FIG. 5) with a descending slope of the same orientation but flatter. These front flanks make it possible to release the counter-teeth 39 and 40 when, to modify the inclination of the backrest, the armrests are slightly advanced, which then lift automatically.
  • the recesses 27 and 29 are finally delimited by lateral flanks 45 (FIG. 6) in a downward slope towards the middle and capable of coming into contact with the conjugate edges of the counter teeth 39 and 40 to improve positioning.
  • the tip 38 of the finger 22 can be reinforced by a U-shaped section 46 open at the bottom.
  • each rack 21 may have only one toothing 23 opening into the lumen 25 and opposite a straight edge 31a;
  • the conjugate finger 22, instead of being symmetrical, can be asymmetrical and comprise on one side a counter-tooth 39 conjugated with the abovementioned toothing whereas on the other side, it has a flat side 40a free of counter-teeth , the two flanges 30 and 31a cooperating with the tip 38 to ensure the clipping.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The device for articulating an arm-rest of an armchair made of plastic material to the back, permitting the automatic fitting by downward pushing of this arm-rest onto the rest of the armchair, comprises two pins (14) aligned in a substantially horizontal direction and projecting from the two sides of an integrally moulded bracket (13) protruding laterally on the outer edge corresponding to the back (2) made of plastic material, these pins being intended to penetrate, by means of elastic bending of downward wings (17, 18) of the arm-rest (3) made of plastic material, into holes (17, 19) of these wings in order to be held thereby and to pivot therein. <IMAGE>

Description

La présente invention concerne un dispositif pour l'articulation d'un accoudoir de fauteuil en matière plastique sur le dossier.The present invention relates to a device for the articulation of a plastic armchair armrest on the backrest.

Un fauteuil en matière plastique comporte généralement un tabouret constitué par une assise faisant corps, de chaque côté, avec un pied antérieur et un pied postérieur prolongés au-dessus de ladite assise et reliés entre eux par un élément antéro-postérieur. Ce fauteuil connu comporte également un dossier dont les montants sont articulés sur les profilés antéro-postérieurs de l'assise. Ledit fauteuil connu comporte enfin, de chaque côté, un accoudoir articulé à l'arrière sur les montants du dossier et relié à l'avant à l'élément antéro-postérieur par un dispositif de réglage de l'inclinaison de ce dossier.A plastic armchair generally comprises a stool constituted by a seat forming a body, on each side, with a front foot and a rear foot extended above said seat and connected together by an anteroposterior element. This known chair also includes a backrest, the uprights of which are articulated on the anteroposterior profiles of the seat. Said known armchair finally comprises, on each side, an armrest articulated at the rear on the uprights of the backrest and connected at the front to the anteroposterior element by a device for adjusting the inclination of this backrest.

Généralement, chaque articulation comporte un tourillon avec ergot venu de moulage avec l'extrémité arrière de l'accoudoir correspondant et engagé, lorsque celui-ci est vertical, dans une boutonnière conjuguée délimitée par un montant du dossier. Après emboîtement, l'accoudoir est rabattu en position sensiblement horizontale, ce qui a pour effet de décaler angulairement l'ergot du tourillon par rapport à l'encoche de la boutonnière et ainsi de rendre cet accoudoir prisonnier du dossier, tout en pouvant pivoter suivant l'amplitude angulaire relativement limitée que nécessite le réglage de l'inclinaison du dossier.Generally, each articulation comprises a pin with lug coming from molding with the rear end of the corresponding armrest and engaged, when the latter is vertical, in a conjugated buttonhole delimited by an amount of the backrest. After fitting, the armrest is folded down into a substantially horizontal position, which has the effect of angularly shifting the lug of the pin relative to the notch in the buttonhole and thus making this armrest trapped in the backrest, while being able to pivot according to the relatively limited angular amplitude required for adjusting the inclination of the backrest.

Le dispositif de réglage de cette inclinaison du dossier prévu de chaque côté du fauteuil comporte une crémaillère délimitée par l'accoudoir correspondant et dont les dents coopèrent sélectivement avec un doigt venu de moulage en saillie avec l'élément antéro-postérieur du piètement. Ce doigt comporte une tête de verrouillage prisonnière de la crémaillère mais écartée d'une distance suffisante pour que le doigt échappe à la dent sélectionnée de ladite crémaillère lorsqu'on soulève l'accoudoir considéré par pivotement de son tourillon dans le dossier. Cette disposition permet de changer de dent sélectionnée et ainsi de modifier l'inclinaison du dossier. Lorsque le doigt se met en prise avec la nouvelle dent sélectionnée, l'accoudoir s'appuie à nouveau sur l'élément antéro-postérieur du piètement. La crémaillère délimite près de son extrémité arrière un passage pour dégager le doigt et libérer l'accoudoir.The device for adjusting this inclination of the backrest provided on each side of the chair comprises a rack delimited by the corresponding armrest and the teeth of which cooperate selectively with a molded finger projecting from the anteroposterior element of the base. This finger has a locking head trapped in the rack but spaced apart by a sufficient distance so that the finger escapes the selected tooth of said rack when the armrest considered is lifted by pivoting its journal in the backrest. This arrangement allows to change the selected tooth and thus to modify the inclination of the backrest. When the finger engages with the new selected tooth, the armrest rests again on the anteroposterior element of the base. The rack delimits near its rear end a passage to release the finger and release the armrest.

Le montage des accoudoirs du fauteuil est une opération relativement longue et complexe, habituellement exécutée par de la main d'oeuvre et donc relativement coûteuse. Elle nécessite en effet de présenter chaque accoudoir verticalement, d'emboîter son tourillon dans la boutonnière du dossier, de rabattre l'accoudoir considéré horizontalement, de faire pivoter le dossier suffisamment vers l'avant pour que le passage des crémaillères se trouve en regard des doigts, d'emboîter les accoudoirs et de régler le dossier pour qu'il se présente en inclinaison moyenne appropriée à l'empilage de plusieurs fauteuils les uns dans les autres. Cette opération de montage ne peut évidemment pas être robotisée de façon économique pour entrer en compétition avec le montage manuel précité.Mounting the armrests of the chair is a relatively long and complex operation, usually carried out by labor and therefore relatively expensive. It requires in fact to present each armrest vertically, to fit its pin in the buttonhole of the backrest, to fold the armrest considered horizontally, to pivot the backrest sufficiently forwards so that the passage of the racks is opposite the fingers, fit the armrests and adjust the backrest so that it is at an average inclination suitable for stacking several chairs in each other. This assembly operation can obviously not be robotized economically to compete with the aforementioned manual assembly.

En outre, les liaisons prévues pour régler l'inclinaison du dossier ne sont pas d'une extrême solidité et les jeux fonctionnels sont tels que la rigidité du fauteuil est, sinon compromise, du moins limitée.In addition, the connections provided to adjust the inclination of the backrest are not extremely solid and the functional clearances are such that the rigidity of the chair is, if not compromised, at least limited.

La présente invention a pour but de remédier à ces inconvénients, en perfectionnant l'articulation et subsidiairement le dispositif de réglage à crémaillère mis en oeuvre de chaque côté du fauteuil, de telle façon que la robotisation du montage du fauteuil devienne possible et facile à exécuter rapidement et économiquement, de telle façon aussi que la rigidité du fauteuil se trouve améliorée, de telle façon enfin que le démoulage des composants de chaque dispositif de réglage soit plus facile à réaliser.The object of the present invention is to remedy these drawbacks, by improving the articulation and, in the alternative, the rack adjustment device used on each side of the chair, in such a way that robotization of the mounting of the chair becomes possible and easy to execute. quickly and economically, so that the rigidity of the chair is improved, so that finally the release of the components of each adjustment device is easier to achieve.

Dans ce but et conformément à l'invention, le dispositif pour l'articulation d'un accoudoir comporte deux tourillons alignés dans une direction sensiblement horizontale et faisant saillie des deux côtés d'une console venue de moulage en proéminence latérale sur le bord extérieur correspondant du dossier en matière plastique, ces tourillons étant destinés à pénétrer, par fléchissement élastique d'ailes descendantes de l'accoudoir en matière plastique, dans des trous de ces ailes pour en être prisonnier et y pivoter.For this purpose and in accordance with the invention, the device for the articulation of an armrest comprises two pins aligned in a substantially horizontal direction and projecting from the two sides of a console coming from molding in lateral prominence on the corresponding outer edge of the plastic backrest, these pins being intended to penetrate, by elastic deflection of downward wings of the plastic armrest, into holes in these wings to be trapped and pivot.

Avantageusement, l'un au moins des tourillons présente un chanfrein incliné vers le haut et le plan médian du fauteuil, pour permettre, lors du montage par poussée descendante de l'accoudoir, l'écartement élastique des ailes de celui-ci et l'emboîtement des tourillons dans les trous desdites ailes.Advantageously, at least one of the trunnions has a chamfer inclined upwards and the median plane of the chair, to allow, when mounting by pushing down the armrest, the elastic spacing of the wings of the latter and the interlocking of the pins in the holes of said wings.

Subsidiairement et pour que chaque accoudoir soit clipsable par l'application robotisée d'une simple poussée dirigée du haut vers le bas, cet accoudoir comporte, outre le dispositif d'articulation précité, un dispositif de réglage de l'inclinaison du dossier dont les composants : crémaillère et doigt appartenant indifféremment à l'accoudoir considéré et à la partie correspondante du piètement sont emboîtables l'un dans l'autre par déformation élastique lors de la poussée précitée.In addition, and so that each armrest can be clipped by the robotic application of a simple push directed from top to bottom, this armrest includes, in addition to the aforementioned articulation device, a device for adjusting the inclination of the backrest, the components of which : rack and finger indifferently belonging to the armrest in question and to the corresponding part of the base are nestable one inside the other by elastic deformation during the aforementioned thrust.

Suivant une forme de réalisation conseillée, la crémaillère de chaque dispositif de réglage comporte au moins une denture délimitée par une marge d'une lumière ménagée de moulage dans un élément de support antéro-postérieur faisant corps avec le piètement et sur lequel l'accoudoir profilé en U s'emboîte, les creux de cette denture débouchant sur le dessus de cet élément de support et dans l'un des rebords descendants de ladite lumière ; le doigt coopérant du dispositif de réglage considéré venu de moulage en saillie sous le dessus de l'accoudoir est conformé en harpon et comporte une pointe extrême destinée à élargir la lumière en écartant élastiquement les rebords de celle-ci, une tige de largeur sensiblement égale à celle de ladite lumière pour réaliser une sorte d'encastrement, des épaulements entre la pointe et la tige pour buter contre le chant inférieur des rebords et rendre ainsi l'accoudoir prisonnier de son élément de support et un pied faisant saillie d'un côté au moins pour former une contre-dent susceptible de pénétrer sélectivement dans les creux de la denture et de coopérer avec les dents sélectionnées de cette denture, la distance libre entre les épaulements d'arrêt et les contre-dents étant au moins égale à la hauteur des rebords précités.According to a recommended embodiment, the rack of each adjustment device comprises at least one toothing delimited by a margin of a lumen formed in an anteroposterior support element integral with the base and on which the profiled armrest U-shaped fits, the hollows of this toothing opening onto the top of this support element and into one of the descending edges of said lumen; the cooperating finger of the adjustment device considered to come from a protruding molding under the top of the armrest is shaped as a harpoon and has an extreme point intended to widen the light by elastically spreading the edges thereof, a rod of substantially equal width to that of said lumen to achieve a kind of embedding, shoulders between the point and the rod to abut against the lower edge of the edges and thus make the armrest captive of its support element and a foot projecting from one side at least for form a counter-tooth capable of penetrating selectively into the hollows of the toothing and of cooperating with the selected teeth of this toothing, the free distance between the stop shoulders and the counter-teeth being at least equal to the height of the abovementioned flanges .

Chaque crémaillère comporte deux dentures symétriques débouchant dans les rebords, le doigt est également symétrique avec une pointe à deux pentes et un pied formant deux contre-dents susceptibles de coopérer avec ces dentures.Each rack has two symmetrical teeth opening into the edges, the finger is also symmetrical with a point with two slopes and a foot forming two counter teeth capable of cooperating with these teeth.

Les marges de la lumière considérée présentent des chanfreins susceptibles de coopérer avec la pointe du doigt pour favoriser le clipsage.The margins of the light considered have chamfers capable of cooperating with the tip of the finger to promote clipping.

Divers autres caractéristiques et avantages de l'invention ressortent d'ailleurs de la description détaillée qui suit.Various other characteristics and advantages 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, sur le dessin annexé.An embodiment of the object of the invention is shown, by way of nonlimiting example, in the accompanying drawing.

Sur ce dessin

  • la figure 1 est une perspective montrant un accoudoir conforme à l'invention, destiné à être monté de chaque côté d'un fauteuil, le montage étant exécuté par poussée du haut vers le bas lorsque cet accoudoir est, non pas incliné comme cela est représenté sur le dessin pour bien montrer les moyens mis en oeuvre, mais sensiblement horizontal afin de clipser sensiblement en même temps le dispositif d'articulation et le dispositif à crémaillère,
  • la figure 2 est une demi-élévation du tabouret de ce fauteuil, vue de l'arière suivant la ligne II-II de la figure 4,
  • la figure 3 est une demi-élévation du dossier, vue de l'avant,
  • la figure 4 est un plan vu de dessus du tabouret du fauteuil,
  • la figure 5 est une coupe longitudinale partielle prise suivant la ligne V-V de la figure 4,
  • la figure 6 est une coupe transversale partielle prise suivant la ligne VI-VI de la figure 5,
  • la figure 7 est un plan vu de dessous d'un accoudoir,
  • la figure 8 est une coupe longitudinale prise suivant la ligne VIII-VIII de la figure 7,
  • la figure 9 est une coupe transversale prise suivant la ligne IX-IX de la figure 8.
  • la figure 10 est une vue en coupe illustrant une variante de réalisation à denture unique pour chaque crémaillère, l'accoudoir étant posé avant clipsage sur l'élément antéro-postérieur du piètement.
On this drawing
  • Figure 1 is a perspective showing an armrest according to the invention, intended to be mounted on each side of a chair, the assembly being carried out by pushing from the top down when this armrest is, not inclined as shown in the drawing to clearly show the means used, but substantially horizontal in order to clip the articulation device and the rack device substantially at the same time,
  • FIG. 2 is a half-elevation of the stool of this chair, viewed from the rear along line II-II of FIG. 4,
  • FIG. 3 is a half-elevation of the backrest, seen from the front,
  • FIG. 4 is a plan seen from above of the stool of the chair,
  • FIG. 5 is a partial longitudinal section taken along the line VV in FIG. 4,
  • Figure 6 is a partial cross section taken along line VI-VI of FIG. 5,
  • FIG. 7 is a plan seen from below of an armrest,
  • FIG. 8 is a longitudinal section taken along line VIII-VIII of FIG. 7,
  • FIG. 9 is a cross section taken along line IX-IX of FIG. 8.
  • Figure 10 is a sectional view illustrating an alternative embodiment with single teeth for each rack, the armrest being placed before clipping on the anteroposterior element of the base.

Comme le montrent les figures 1 à 4, le fauteuil comporte un tabouret 1, un dossier 2 et deux accoudoirs 3 moulés indépendamment en matière plastique, telle que du polypropylène chargé avec du carbonate de calcium.As shown in Figures 1 to 4, the chair has a stool 1, a backrest 2 and two armrests 3 independently molded in plastic, such as polypropylene loaded with calcium carbonate.

Le tabouret 1 présente une assise 4 faisant corps de chaque côté avec un pied antérieur 5 et un pied postérieur 6 qui se prolongent au-dessus de ladite assise et sont reliés entre eux par un élément antéro-postérieur de support 7 faisant saillie vers l'arrière et destiné à recevoir un accoudoir 3 qui s'emboîte dessus.The stool 1 has a seat 4 forming a body on each side with a front foot 5 and a rear foot 6 which extend above said seat and are interconnected by an anteroposterior support element 7 projecting towards the rear and intended to receive an armrest 3 which fits over it.

Le dossier 2 du fauteuil ou d'un bain de soleil est articulé sur l'assise 4 par clipsage. A cet effet, chaque montant du dossier comporte une chape inférieure 8 (figure 3) dont les branches présentent en saillie interne des tourillons 9 et l'aile transversale arrière de chaque pied postérieur 6 (figures 1, 2 et 4) fait corps avec un manchon 10. Les tourillons 9 et les manchons 10 présentent des chanfreins 11 et 12 respectivement, de sorte qu'en exerçant une poussée du haut vers le bas sur le dossier, les branches des chapes 8 se déforment élastiquement et s'emboîtent sur les manchons 10 jusqu'à ce que les tourillons 9 pénètrent dans les alésages desdits manchons en formant des articulations positives.The backrest 2 of the armchair or of a sun lounger is articulated on the seat 4 by clipping. For this purpose, each upright of the backrest comprises a lower yoke 8 (FIG. 3), the branches of which project internal pins 9 and the rear transverse wing of each rear leg 6 (FIGS. 1, 2 and 4) is integral with a sleeve 10. The pins 9 and the sleeves 10 have chamfers 11 and 12 respectively, so that by exerting a push from the top to the bottom on the backrest, the branches of the yokes 8 elastically deform and fit onto the sleeves 10 until the pins 9 penetrate the bores of said sleeves by forming positive joints.

Chaque accoudoir 3 (figures 1, 3 et 7 à 9) est articulé sur le dossier 2 par clipsage. A cet effet, chaque montant du dossier 2 comporte une console 13 venue de moulage en proéminence vers l'extérieur sensiblement au niveau de l'élément 7 et les extrémités de cette console présentent en saillie des tourillons 14 alignés ayant en haut des chanfreins 15. L'aile descendante intérieure 16 de chaque accoudoir 3 délimite un trou débouchant 17, tandis que l'aile descendante extérieure 18 de l'accoudoir considéré délimite un trou borgne 19. Ces trous 17 et 19 sont alignés et destinés à recevoir les tourillons 14, lorsqu'une poussée est exercée du haut vers le bas sur l'accoudoir 3 en position sensiblement horizontale, poussée au cours de laquelle les ailes précitées se déforment élastiquement sur les chanfreins jusqu'à ce que les trous parvenus en regard des tourillons s'emboîtent sur ceux-ci.Each armrest 3 (Figures 1, 3 and 7 to 9) is articulated on the backrest 2 by clipping. For this purpose, each upright of the backrest 2 comprises a console 13 coming from molding projecting outwards substantially at the level of the element 7 and the ends of this console projecting aligned pins 14 having chamfers at the top 15. The inner descending wing 16 of each armrest 3 defines a through hole 17, while the outer descending wing 18 of the armrest considered delimits a hole blind 19. These holes 17 and 19 are aligned and intended to receive the pins 14, when a thrust is exerted from the top to the bottom on the armrest 3 in a substantially horizontal position, thrust during which the aforementioned wings deform elastically on the chamfers until the holes opposite the trunnions fit on them.

Avantageusement, la poussée exercée de haut en bas sur chaque accoudoir 3 doit permettre de clipser l'articulation arrière et un dispositif avant 20 à crémaillère prévu pour le réglage de l'inclinaison du dossier 2.Advantageously, the thrust exerted from top to bottom on each armrest 3 must make it possible to clip the rear articulation and a front rack device 20 provided for adjusting the inclination of the backrest 2.

Dans l'exemple représenté sur les figures 1, 4 à 9, chaque dispositif 20 comporte une crémaillère 21 et un doigt conjugué 22. La crémaillère présente deux dentures 23 et 24 formées dans les marges d'une lumière 25 ménagée de moulage dans l'élément 7. La denture 23 comprend des dents 26 séparées par des creux 27 qui débouchent dans la lumière 25 et, de même, la denture 24 comprend des dents 28 séparées par des creux 29 qui débouchent dans la lumière 25. Celle-ci est délimitée par des rebords 30 et 31 de hauteur "h", reliés à la face supérieure de l'élément 7 par des chanfreins 32 et 33 s'étendant le long des dents 26 et 28, chanfreins qui sont destinés à favoriser le clipsage.In the example shown in Figures 1, 4 to 9, each device 20 comprises a rack 21 and a conjugate finger 22. The rack has two teeth 23 and 24 formed in the margins of a light 25 formed in the molding element 7. The toothing 23 comprises teeth 26 separated by hollows 27 which open into the lumen 25 and, similarly, the toothing 24 comprises teeth 28 separated by hollows 29 which open into the lumen 25. This is delimited by flanges 30 and 31 of height "h", connected to the upper face of the element 7 by chamfers 32 and 33 extending along the teeth 26 and 28, chamfers which are intended to promote clipping.

Chaque dispositif 20 comporte également le doigt conjugué 22 venu de moulage en saillie sous le dessus de l'accoudoir 3 correspondant. Ce doigt est conformé en harpon de section cruciforme. La branche antéro-postérieure 34 du doigt et une nervure 35 permet de raidir la structure et est relativement étendue, tandis que la branche transversale 36 est celle qui opère le clipsage, l' engrènement et le maintien prisonnier.Each device 20 also includes the conjugate finger 22 coming from the molding projecting under the top of the corresponding armrest 3. This finger is shaped like a harpoon of cruciform section. The antero-posterior branch 34 of the finger and a rib 35 makes it possible to stiffen the structure and is relatively extended, while the transverse branch 36 is that which operates the clipping, the meshing and the holding prisoner.

La branche transversale active 36 du doigt 22 comporte alors une tige 37 reliant une pointe terminale 38 et un pied 39, 40. La tige 37 présente une largeur transversale sensiblement égale à celle de la lumière 25 pour réaliser une sorte d'encastrement de l'accoudoir 3 relativement au tabouret 1. La pointe 38 présente une largeur légèrement supérieure et est destinée à écarter élastiquement les rebords 30 et 31 lors de la poussée de l'accoudoir vers le bas, rebords qui reviennent élastiquement lorsque la pointe a franchi lesdits rebords et que ses épaulements 41 et 42 sont susceptibles de buter contre le chant des rebords pour empêcher le dégagement de l'accoudoir qui ainsi est prisonnier de l'élément 7.The active transverse branch 36 of the finger 22 then comprises a rod 37 connecting an end point 38 and a foot 39, 40. The rod 37 has a transverse width substantially equal to that of the lumen 25 in order to produce a sort of embedding of the armrest 3 relative to the stool 1. The point 38 has a slightly greater width and is intended to elastically spread the edges 30 and 31 when the armrest is pushed down, edges which return elastically when the point has crossed said edges and its shoulders 41 and 42 are capable of abutting against the edge edges to prevent the armrest from being disengaged who is thus a prisoner of element 7.

En réalité, la hauteur "H" de la tige 37 entre sa pointe 38 et son pied 39, 40 est supérieure à la hauteur "h" des rebords 30 et 31 et la différence "H-h" est supérieure à l'engagement des contre-dents que forme le pied 39, 40, dans les creux 29 des dentures 23 et 24. Ainsi, le doigt 22, tout en étant prisonnier de la crémaillère 21, peut se dégager de celle-ci pour permettre le réglage.In reality, the height "H" of the rod 37 between its tip 38 and its foot 39, 40 is greater than the height "h" of the flanges 30 and 31 and the difference "Hh" is greater than the engagement of the counter teeth formed by the foot 39, 40, in the hollows 29 of the teeth 23 and 24. Thus, the finger 22, while being trapped in the rack 21, can be released from the latter to allow adjustment.

Les contre-dents 39 et 40 sont conjuguées avec les flancs postérieurs 43 (figure 5) des creux 27 et 28, ces contre-dents et flancs étant en pente descendante vers l'arrière pour bloquer l'accoudoir en position d'appui.The counter-teeth 39 and 40 are conjugated with the rear flanks 43 (FIG. 5) of the recesses 27 and 28, these counter-teeth and flanks being in a downwardly sloping backward direction to lock the armrest in the support position.

Les creux 27 et 29 sont également délimités par des flancs antérieurs 44 (figure 5) en pente descendante de même orientation mais plus plate. Ces flancs antérieurs permettent de dégager les contre-dents 39 et 40 lorsque, pour modifier l'inclinaison du dossier, on avance légèrement les accoudoirs, lesquels se soulèvent alors automatiquement.The recesses 27 and 29 are also delimited by anterior flanks 44 (FIG. 5) with a descending slope of the same orientation but flatter. These front flanks make it possible to release the counter-teeth 39 and 40 when, to modify the inclination of the backrest, the armrests are slightly advanced, which then lift automatically.

Les creux 27 et 29 sont enfin délimités par des flancs latéraux 45 (figure 6) en pente descendante vers le milieu et susceptibles de venir en contact avec les bords conjugués des contre-dents 39 et 40 pour améliorer le positionnement.The recesses 27 and 29 are finally delimited by lateral flanks 45 (FIG. 6) in a downward slope towards the middle and capable of coming into contact with the conjugate edges of the counter teeth 39 and 40 to improve positioning.

Par ailleurs, la pointe 38 du doigt 22 peut être renforcée par un profilé en U 46 ouvert en bas.Furthermore, the tip 38 of the finger 22 can be reinforced by a U-shaped section 46 open at the bottom.

Suivant la variante illustrée par la figure 10, chaque crémaillère 21 peut ne comporter qu'une seule denture 23 débouchant dans la lumière 25 et opposée à un rebord rectiligne 31a ; le doigt conjugué 22, au lieu d'être symétrique, peut être dissymétrique et comporter d'un côté une contre-dent 39 conjuguée avec la denture précitée alors que de l'autre côté, il présente un flanc plat 40a exempt de contre-dent, les deux rebords 30 et 31a coopérant avec la pointe 38 pour assurer le clipsage.According to the variant illustrated in Figure 10, each rack 21 may have only one toothing 23 opening into the lumen 25 and opposite a straight edge 31a; the conjugate finger 22, instead of being symmetrical, can be asymmetrical and comprise on one side a counter-tooth 39 conjugated with the abovementioned toothing whereas on the other side, it has a flat side 40a free of counter-teeth , the two flanges 30 and 31a cooperating with the tip 38 to ensure the clipping.

Ainsi, lors du montage du fauteuil ou du bain de soleil, en poussant sur les accoudoirs 3 vers le bas, on assure le clipsage de leurs doigts 22 dans les crémaillères 21, le dispositif de réglage 20 fonctionnant alors normalement.Thus, during assembly of the armchair or the sunbathing, by pushing down on the armrests 3, the fingers 22 are clipped into the racks 21, the adjustment device 20 then operating normally.

Claims (11)

1.- Dispositif pour l'articulation d'un accoudoir de fauteuil en matière plastique sur le dossier, permettant le montage automatique par poussée du haut vers le bas de cet accoudoir sur le reste du fauteuil, caractérisé en ce qu'il comporte deux tourillons (14) alignés dans une direction sensiblement horizontale et faisant saillie des deux côtés d'une console (13) venue de moulage en proéminence latérale sur le bord extérieur correspondant du dossier (2) en matière plastique, ces tourillons étant destinés à pénétrer, par fléchissement élastique d'ailes descendantes (17, 18) de l'accoudoir (3) en matière plastique, dans des trous (17, 19) de ces ailes pour en être prisonniers et y pivoter. 1.- Device for the articulation of an armchair of plastic material on the backrest, allowing the automatic mounting by pushing from top to bottom of this armrest on the rest of the chair, characterized in that it comprises two pins (14) aligned in a substantially horizontal direction and projecting from both sides of a console (13) molded in lateral prominence on the corresponding outer edge of the backrest (2) of plastic material, these pins being intended to penetrate, by elastic deflection of descending wings (17, 18) of the plastic armrest (3), in holes (17, 19) of these wings to be trapped therein and pivot therein. 2.- Dispositif selon la revendication 1, caractérisé en ce que l'un au moins des tourillons (14) présente un chanfrein (15) incliné vers le haut et le plan médian du fauteuil, pour permettre, lors du montage par poussée descendante de l'accoudoir, l'écartement élastique des ailes (17, 18) de celui-ci et l'emboîtement des tourillons (14) dans les trous (17, 19) desdites ailes. 2.- Device according to claim 1, characterized in that at least one of the pins (14) has a chamfer (15) inclined upward and the median plane of the chair, to allow, during mounting by downward pushing of the armrest, the elastic spacing of the wings (17, 18) thereof and the fitting of the pins (14) in the holes (17, 19) of said wings. 3.- Accoudoir clipsable par le haut lors du montage des composants en matière plastique d'un fauteuil, d'un bain de soleil ou autre, caractérisé en ce qu'il fait application du dispositif d'articulation (13 à 19) selon la revendication 1 ou 2 pour relier chacun des deux accoudoirs (3) au dossier (2) et d'un dispositif (20) de réglage de l'inclinaison du dossier relativement à un piètement, dispositif de réglage dont les composants : crémaillère (21) et doigt (22) appartenant indifféremment à chaque accoudoir (3) et la partie correspondante (7) du piètement sont emboîtables l'un dans l'autre par déformation élastique lors de la poussée du haut vers le bas normalement exercée pour monter le dispositif d'articulation précité. 3.- Armrest can be clipped from above when assembling the plastic components of an armchair, sunbathing or the like, characterized in that it applies the articulation device (13 to 19) according to the Claim 1 or 2 for connecting each of the two armrests (3) to the backrest (2) and to a device (20) for adjusting the inclination of the backrest relative to a base, an adjusting device including the components: rack (21) and finger (22) indifferently belonging to each armrest (3) and the corresponding part (7) of the base are nestable one inside the other by elastic deformation during the push from the top to the bottom normally exerted to mount the device. articulation mentioned above. 4.- Accoudoir selon la revendication 3, caractérisé - en ce que la crémaillère (21) de chaque dispositif de réglage (20) comporte au moins une denture (23, 24) délimitée par une marge d'une lumière (25) ménagée de moulage dans un élément de support antéro-postérieur (7) faisant corps avec le piètement et sur lequel l'accoudoir (3) profilé en U s'emboîte, les creux (27, 29) de cette denture débouchant sur le dessus de cet élément de support et dans l'un des rebords descendants (30, 31) de ladite lumière, - et en ce que le doigt (22) coopérant du dispositif de réglage (20) considéré venu de moulage en saillie sous le dessus de l'accoudoir (3) est conformé en harpon et comporte une pointe extrême (38) destinée à élargir la lumière (25) en écartant élastiquement les rebords (30, 31) de celle-ci, une tige (37) de largeur sensiblement égale à celle de ladite lumière (25) pour réaliser une sorte d'encastrement, des épaulements (41, 42) entre la pointe et la tige pour buter contre le chant inférieur des rebords et rendre ainsi l'accoudoir prisonnier de son élément de support (7) et un pied (39, 40) faisant saillie d'un côté au moins pour former une contre-dent susceptible de pénétrer sélectivement dans les creux (27, 29) de la denture (23, 24) et de coopérer avec les dents sélectionnées (26, 28) de cette denture, la distance libre "H" entre les épaulements d'arrêt et les contre-dents étant au moins égale à la hauteur "h" des rebords précités. 4.- armrest according to claim 3, characterized - in that the rack (21) of each adjustment device (20) has at least one toothing (23, 24) delimited by a margin of a light (25) provided for molding in an anteroposterior support element (7) integral with the base and on which the armrest (3) U-shaped fits, the recesses (27, 29 ) of this toothing opening onto the top of this support element and into one of the descending edges (30, 31) of said lumen, - And in that the cooperating finger (22) of the adjustment device (20) considered to come from a protruding molding beneath the top of the armrest (3) is shaped like a harpoon and has an end point (38) intended to widen the light (25) elastically spreading the flanges (30, 31) thereof, a rod (37) of width substantially equal to that of said light (25) to achieve a kind of embedding, shoulders (41, 42 ) between the point and the rod to abut against the lower edge of the edges and thus make the armrest captive of its support element (7) and a foot (39, 40) projecting from one side at least to form a counter -dent capable of penetrating selectively into the hollows (27, 29) of the toothing (23, 24) and of cooperating with the selected teeth (26, 28) of this toothing, the free distance "H" between the stop shoulders and the counter teeth being at least equal to the height "h" of the abovementioned flanges. 5.- Accoudoir selon la revendication 4, caractérisé en ce que chaque crémaillère (21) comporte deux dentures symétriques (23, 24) débouchant dans les rebords (30, 31) et en ce que le doigt (22) est également symétrique avec une pointe à deux pentes (38) et un pied formant deux contre-dents (39, 40) susceptibles de coopérer avec ces dentures. 5.- armrest according to claim 4, characterized in that each rack (21) has two symmetrical teeth (23, 24) opening into the flanges (30, 31) and in that the finger (22) is also symmetrical with a point with two slopes (38) and a foot forming two counter-teeth (39, 40) capable of cooperating with these teeth. 6.- Accoudoir selon la revendication 4, caractérisé en ce que chaque crémaillère (21) ne comporte qu'une seule denture (23) débouchant dans l'un des rebords (30), l'autre rebord (31) étant rectiligne, et en ce que le doigt (22) est dissymétrique et présente, au-delà de la pointe (38), d'un côté, une contre-dent (39) et, de l'autre côté, une partie rectiligne (40a). 6. Armrest according to claim 4, characterized in that each rack (21) has only one toothing (23) opening into one of the flanges (30), the other flange (31) being rectilinear, and in that the finger (22) is asymmetrical and has, beyond the tip (38), on one side, a counter-tooth (39) and, on the other side, a rectilinear part (40a). 7.- Accoudoir selon l'une quelconque des revendications 4 à 6, caractérisé en ce que les marges de la lumière (25) considérée présentent des chanfreins (32, 33) susceptibles de coopérer avec la pointe (38) du doigt (22) pour favoriser le clipsage. 7.- Armrest according to any one of the claims 4 to 6, characterized in that the margins of the light (25) considered have chamfers (32, 33) capable of cooperating with the tip (38) of the finger (22) to promote clipping. 8.- Accoudoir selon la revendication 4, caractérisé en ce que chaque creux (27, 29) d'une denture (23, 24) comporte un flanc postérieur (43) en pente descendante vers l'arrière susceptible de coopérer avec un flanc conjugué de la contre-dent (39, 40) pour assurer un blocage de l'accoudoir en position d'appui et un flanc antérieur (44) en pente descendante dans la même orientation mais plus plate pour favoriser le dégagement de ladite contre-dent.8.- armrest according to claim 4, characterized in that each recess (27, 29) of a toothing (23, 24) has a rear flank (43) sloping downwards towards the rear capable of cooperating with a conjugate flank of the counter-tooth (39, 40) to block the armrest in the support position and an anterior flank (44) descending in the same orientation but flatter to promote the release of said counter-tooth. 9.- Accoudoir selon la revendication 8, caractérisé en ce que chaque creux d'une denture comporte un flanc latéral (45) en pente descendante vers le milieu susceptible de venir en contact avec un bord conjugué de la contre-dent (39, 40) pour améliorer le positionnement. 9. Armrest according to claim 8, characterized in that each hollow of a toothing has a lateral flank (45) in a downward slope towards the medium capable of coming into contact with a conjugate edge of the counter-tooth (39, 40 ) to improve positioning. 10.- Accoudoir selon l'une quelconque des revendications 4 à 9, caractérisé en ce que le doigt (22) est un profilé cruciforme dont la branche antéro-postérieure de raidissement (34) est très étendue et dont la branche transversale (36) constitue le pied incliné (39, 40), la tige droite (37) et la pointe (38). 10.- Armrest according to any one of claims 4 to 9, characterized in that the finger (22) is a cruciform profile whose anteroposterior stiffening branch (34) is very extensive and whose transverse branch (36) constitutes the inclined foot (39, 40), the straight rod (37) and the tip (38). 11.- Accoudoir selon la revendication 10, caractérisé en ce que le doigt (22) est renforcé par une nervure (35) sensiblement parallèle à la branche transversale (36) et par un profilé en U (46) doublant la pointe (38). 11. Armrest according to claim 10, characterized in that the finger (22) is reinforced by a rib (35) substantially parallel to the transverse branch (36) and by a U-shaped profile (46) doubling the tip (38) .
EP91401921A 1990-07-27 1991-07-10 Device for articulating an arm-rest to the back of an armchair made of plastic material Withdrawn EP0468843A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9009641 1990-07-27
FR9009641A FR2665063B1 (en) 1990-07-27 1990-07-27 DEVICE FOR ARTICULATING A PLASTIC ARMCHAIR ARMREST ON THE BACKREST.

Publications (1)

Publication Number Publication Date
EP0468843A1 true EP0468843A1 (en) 1992-01-29

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Application Number Title Priority Date Filing Date
EP91401921A Withdrawn EP0468843A1 (en) 1990-07-27 1991-07-10 Device for articulating an arm-rest to the back of an armchair made of plastic material

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EP (1) EP0468843A1 (en)
AU (1) AU8131791A (en)
BR (1) BR9103213A (en)
FR (1) FR2665063B1 (en)
NO (1) NO912928L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700451A1 (en) * 1993-01-18 1994-07-22 Grosfillex Sarl Plastics armchair with back that inclines
EP0935935A2 (en) * 1997-12-23 1999-08-18 Habitat UK Limited Improvements relating to adjustable furniture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729988A1 (en) * 1968-03-16 1971-07-08 Happich Gmbh Gebr Easily detachable and attachable, padded armrests, especially for seating
DE3224814A1 (en) * 1982-07-02 1984-01-05 August Fröscher GmbH & Co KG, 7141 Steinheim Chair armrest with a pivotable arm support
WO1987005787A1 (en) * 1986-04-04 1987-10-08 I.P.A.E. S.P.A. A stackable plastic deck-chair
EP0256958A2 (en) * 1986-08-06 1988-02-24 Grosfillex S.A.R.L. Stackable chair with an inclinable back rest

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729988A1 (en) * 1968-03-16 1971-07-08 Happich Gmbh Gebr Easily detachable and attachable, padded armrests, especially for seating
DE3224814A1 (en) * 1982-07-02 1984-01-05 August Fröscher GmbH & Co KG, 7141 Steinheim Chair armrest with a pivotable arm support
WO1987005787A1 (en) * 1986-04-04 1987-10-08 I.P.A.E. S.P.A. A stackable plastic deck-chair
EP0256958A2 (en) * 1986-08-06 1988-02-24 Grosfillex S.A.R.L. Stackable chair with an inclinable back rest

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700451A1 (en) * 1993-01-18 1994-07-22 Grosfillex Sarl Plastics armchair with back that inclines
EP0935935A2 (en) * 1997-12-23 1999-08-18 Habitat UK Limited Improvements relating to adjustable furniture
EP0935935A3 (en) * 1997-12-23 2000-06-28 Habitat UK Limited Improvements relating to adjustable furniture

Also Published As

Publication number Publication date
BR9103213A (en) 1992-02-18
AU8131791A (en) 1992-01-30
NO912928L (en) 1992-01-28
FR2665063B1 (en) 1992-11-27
NO912928D0 (en) 1991-07-26
FR2665063A1 (en) 1992-01-31

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