EP1708593B1 - Chair system with a suspended balanced inclination seat adjustable by a body weight only - Google Patents

Chair system with a suspended balanced inclination seat adjustable by a body weight only Download PDF

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Publication number
EP1708593B1
EP1708593B1 EP04787406A EP04787406A EP1708593B1 EP 1708593 B1 EP1708593 B1 EP 1708593B1 EP 04787406 A EP04787406 A EP 04787406A EP 04787406 A EP04787406 A EP 04787406A EP 1708593 B1 EP1708593 B1 EP 1708593B1
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EP
European Patent Office
Prior art keywords
seat
suspended
assise
user
carriage
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EP04787406A
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German (de)
French (fr)
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EP1708593A1 (en
Inventor
Yann Guehria
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Guehria Yann
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Guehria Yann
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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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/0255—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame pivotally mounted in the base frame, e.g. swings
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest

Definitions

  • the present invention relates to an ergonomic and relaxing suspended seat system, adjustable, with variable inclination complete and secure, balanced by the weight of the body without mechanism or notch.
  • Some seat systems allow a variable inclination but allow only partial physical relaxation of the body, not supporting it in its entirety from head to toe or having a non-ergonomic rigid seat.
  • Certain other seat systems allow variable inclination but allow only partial or limited inclination, allowing only the inclination of the single backrest of the seat, or a maximum inclination in a half extended position, or a tilt simultaneously causing a variation and deformation of the shape of the base of the seat and therefore limited by the friction of the base on the ground.
  • variable inclination seat systems are conditioned by the requirement for the user to leave or to move from his sitting position, or to implement additive, electric or other notches or mechanisms, or to develop a special effort to tilt or straighten the seat.
  • the system of the present invention complements and refines existing variable inclination seat systems as follows:
  • the system according to the present invention consists of a seat (see method 1), suspended on a tilting seat carriage and deformable longitudinally and reversibly on a fixed base, rigid and dimensionally stable, regardless of this base and without modification thereof , while having a system of safety stops fixed on the base, controlling in stop the rear rocker.
  • the system according to the present invention allows a control and a balance of the inclination of the seat structure / seat trolley by the weight of the body of the user alone, without mechanism or notch.
  • This system is enabled by a method of alignment and interaction on the same axis of the weight of the user's body in the seat of the seat and balance center of the seat carriage.
  • the above two points superimposed define an axis connecting the balance point of the body weight of the user to that of the seat carriage.
  • the base parallelepiped of the seat carriage consisting of 2 equilateral quadrilaterals (see method 3), this axis is parallel to the vertical axes of these two quadrilaterals and therefore to the plane of inclination of the entire seat carriage.
  • any transfer of the weight of the user's body onto the seat involves the inverse reciprocal movement of the centering point of the carriage on their alignment axis. and the longitudinal corollary deformation of the parallelepiped and the seat trolley: the inclination of the seat follows the weight of the body.
  • the footrest (R) integrated in the seat trolley naturally follows the extension or straightening of the trolley, supporting the legs in all positions.

Abstract

The system has three longitudinal deformable parallelepipeds (B1-B3), and a flexible seat (A) suspended on a seat carriage and sliding at a level of knee and ankles on bars of the seat carriage. Two symmetric deformable quadrilaterals (P1, P2) support the seat and pivot freely with respect to a fixed base (C) to permit variable inclination of the seat, where the inclination is secured by stop pins.

Description

La présente invention concerne un système de siège à assise suspendue ergonomique et relaxante, ajustable, à inclinaison variable complète et sécurisée, équilibrée par le seul poids du corps sans mécanisme ni cran .The present invention relates to an ergonomic and relaxing suspended seat system, adjustable, with variable inclination complete and secure, balanced by the weight of the body without mechanism or notch.

Certains systèmes de siège permettent une inclinaison variable mais n'autorisent qu'une relaxation physique partielle du corps, ne le soutenant pas dans son intégralité de la tête aux pieds ou présentant une assise rigide non ergonomique .Some seat systems allow a variable inclination but allow only partial physical relaxation of the body, not supporting it in its entirety from head to toe or having a non-ergonomic rigid seat.

D'autre systèmes de siège présentent une assise souple mais ne disposent d'aucun réglage de la longueur de cette assise ni de la position de l'appui-tête, ne pouvant s'adapter précisément aux différentes morphologies des utilisateurs .Other seat systems have a flexible seat but have no adjustment of the length of the seat or the position of the headrest, unable to precisely adapt to the different morphologies of users.

Certains autres systèmes de siège permettent une inclinaison variable mais n'autorisent qu'une inclinaison partielle ou limitée, ne permettant soit que l'inclinaison du seul dossier du siège, soit qu'une inclinaison maximale en une position demi allongée, soit qu'une inclinaison entraînant simultanément une variation et une déformation de la forme de la base du siège et donc limitée par le frottement de la base sur le sol.Certain other seat systems allow variable inclination but allow only partial or limited inclination, allowing only the inclination of the single backrest of the seat, or a maximum inclination in a half extended position, or a tilt simultaneously causing a variation and deformation of the shape of the base of the seat and therefore limited by the friction of the base on the ground.

Enfin, d'autres systèmes de siège à inclinaison variable sont conditionnés par l'obligation pour l'utilisateur de quitter ou de se déplacer de sa position assise, ou de mettre en oeuvre des crans ou mécanismes additifs, électriques ou autres, ou de développer un effort particulier pour incliner ou redresser le siège .Finally, other variable inclination seat systems are conditioned by the requirement for the user to leave or to move from his sitting position, or to implement additive, electric or other notches or mechanisms, or to develop a special effort to tilt or straighten the seat.

Le système selon la présente invention complète et perfectionne les systèmes de siège à inclinaison variable existants comme suit :The system of the present invention complements and refines existing variable inclination seat systems as follows:

1) Système d'assise suspendue, ergonomique et relaxante :1) Suspended seat system, ergonomic and relaxing:

Par les 2 procédés suivants, le système selon la présente invention permet en effet un soutien ergonomique de l'ensemble du corps de l'utilisateur, entraînant une détente et une relaxation musculaire et circulatoire réelle quelle que soit l'inclinaison adoptée :

  • 1-a) Le 1er procédé consiste en une assise souple, s'adaptant ergonomiquement à la forme du corps de l'utilisateur, assise suspendue aux 2 extrémités du chariot d'assise et soutenue au niveau des genoux, associée à un appuie-tête amovible et réglable et un repose-pieds intégré .
    L'ensemble du corps de l'utilisateur est ainsi soutenu en permanence de la tête aux pieds dans toutes les positions permises par le siège. Cette assise souple suspendue répartit et soutient complètement le poids du corps et permet une détente musculaire quelle que soit l'inclinaison choisie.
  • 1-b) l'ensemble du corps étant ainsi soutenu en permanence, il bénéficie d'un 2nd procédé de repose-pied solidaire de l'assise dans ses variations d'inclinaison .
    L'assise suspendue sur le chariot d'assise entraînant et soutenant solidairement et complètement le corps de l'utilisateur dans toutes les positions (voir procédé 1-a de soutien du corps), le corps peut s'incliner en position allongée maximale (voir procédé 3 d'inclinaison basculante), les pieds étant alors simultanément relevés et soutenus par le repose-pieds intégré dans le chariot d'assise, permettant la détente circulatoire du corps de l'utilisateur .
By the following two methods, the system according to the present invention indeed allows ergonomic support of the entire body of the user, resulting in relaxation and muscle relaxation and circulatory real whatever the inclination adopted:
  • 1-a) The 1 st method consists of a flexible seat, adapting ergonomically to the shape of the user's body, suspended seat at the 2 ends of the seat carriage and supported in the knee associated with a restraints Removable and adjustable head and integrated footrest.
    The entire body of the user is thus permanently supported from head to toe in all the positions allowed by the seat. This flexible suspended seat distributes and completely supports the weight of the body and allows muscular relaxation whatever the inclination chosen.
  • 1-b) the whole body is thus supported permanently, it benefits from a 2 nd footrest process integral with the seat in its inclination variations.
    The seat suspended on the seat carriage driving and supporting integrally and completely the body of the user in all positions (see method 1-a support of the body), the body can tilt in maximum lying position (see tilt inclination method 3), the feet then being simultaneously raised and supported by the integrated footrest in the seat carriage, allowing the circulatory relaxation of the body of the user.

2) Système d'ajustement de conformation d'assise2) Seat conformation adjustment system

Par les 2 procédés suivants, le système selon la présente invention permet un réglage de la conformation de l'assise pour l'ajuster à la morphologie de son utilisateur .

  • 2-a) Le premier procédé permet le raccourcissement ou l'allongement de cette assise en fonction de la taille de l'utilisateur . Ce procédé est basé sur un système de réglage vers l'avant ou vers l'arrière de la barre d'attache de l'assise en sa partie inférieure par des points d'attache sur le chariot d'assise, la barre d'attache de l'assise en sa partie supérieure restant fixe . Ces points d'attache symétriques permettent de régler la longueur d'assise et sa tension par l'avance ou le recul de cette barre de fixation . On peut donc raccourcir ou rallonger l'assise en fonction de la taille de l'utilisateur, le réglage possible en tension maximale de la longueur d'assise par un déplacement maximal vers l'arrière de la barre d'attache (T2), provoquant une traction et une mise en tension maximales de l'assise la rapprochant de la verticale.
  • 2-b) Le second procédé permet le repositionnement de l'appui-tête sur l'assise en fonction de la taille de l'utilisateur . Ce procédé est permis par le système amovible et réglable de la position en hauteur de cet appui-tête, par des pattes latérales auto-adhésives fixant et tendant le coussin sur la partie dossier du chariot d'assise. On peut donc positionner exactement l'appui-tête en fonction de la taille de l'utilisateur.
By the following two methods, the system according to the present invention allows adjustment of the conformation of the seat to adjust to the morphology of its user.
  • 2-a) The first method allows the shortening or lengthening of this seat according to the size of the user. This method is based on a system of adjustment to the front or rear of the seat attachment bar at its lower part by attachment points on the seat carriage, the attachment bar the seat in its upper part remaining fixed. These symmetrical attachment points allow to adjust the seat length and its tension by the advance or the retreat of this fixing bar. It can therefore shorten or lengthen the seat according to the size of the user, the possible adjustment in maximum tension of the seat length by a maximum displacement towards the rear of the fastening bar (T2), causing a maximum traction and tensioning of the seat bringing it closer to the vertical.
  • 2-b) The second method allows the repositioning of the headrest on the seat according to the size of the user. This method is enabled by the removable and adjustable system of the height position of the headrest, by self-adhesive side tabs fixing and tending the cushion on the back portion of the seat carriage. It is therefore possible to position the headrest exactly according to the size of the user.

3) Système de siège à inclinaison variable complète et sécurisée3) Seat system with variable inclination complete and secure

Le système selon la présente invention est constitué d'une assise (voir procédé 1), suspendue sur chariot d'assise basculant et déformable longitudinalement et réversiblement sur une base fixe, rigide et indéformable, indépendamment de cette base et sans modification de celle-ci, tout en disposant d'un système d'arrêtoirs de sécurité fixés sur la base, contrôlant en butée la bascule arrière.The system according to the present invention consists of a seat (see method 1), suspended on a tilting seat carriage and deformable longitudinally and reversibly on a fixed base, rigid and dimensionally stable, regardless of this base and without modification thereof , while having a system of safety stops fixed on the base, controlling in stop the rear rocker.

Par les 3 procédés suivants, le système selon la présente invention permet une inclinaison variable, complète et sécurisée de l'assise, permettant à l'utilisateur de modifier l'inclinaison du siège de la position assise à la position allongée, avec toutes les positions intermédiaires possibles, sans risque de renversement en position arrière maximale .

  • 3-a) Le 1er procédé est basé sur la constitution de la base du chariot d'assise en un semi-parallélépipède centré déformable constitué de 2 semi-quadrilatères joints entre eux, équilatéraux déformables et symétriques dans 2 plans parallèles axant la structure du siège, autorisant la libre rotation de l'ensemble assise/chariot d'assise suspendu sur la base stable et rigide :
    • Ce semi-parallélépipède déformable est défini par la réunion des 3 parties rigides constitutives du chariot d'assise, fixées et pivotantes entre elles et sur la base, cette réunion formant 2 semi-quadrilatères équilatéraux symétriques dans les 2 plans parallèles, leur équilatéralité étant définie par la distance égale entre les 4 points sommets des 2 quadrilatères un par un .
    • Ces 2 semi-quadrilatères équilatéraux symétriques dans 2 plans parallèles sont chacun fixé et pivotant par rotation sur la base stable en 2 points fixes à leurs 2 extrémités supérieures autour de 2 axes imaginaires fixes parallèles entres eux et perpendiculaires aux 2 plans précédents, et fixés et pivotant par rotation en 2 points constitués par leurs 2 angles inférieurs autour de 2 autres axes parallèles aux précédents. Ces 2 semi-quadrilatères équilatéraux sont donc déformables longitudinalement en losanges équilatéraux aplatis par rotation autour de leurs 4 angles dans les 2 plans parallèles précédents .
    • Le parallélépipède ainsi constitué est déformable longitudinalement et symétriquement par pivot sur la base stable autour de ses 2 axes supérieurs fixes et autour de ses 2 axes inférieurs , ces 4 axes étant parallèles et perpendiculaires aux 2 plans parallèles axant la structure.
  • 3-b) Le 2nd procédé est constitué par l'interaction par rotation du précédent parallélépipède sur le reste de la structure du chariot d'assise (dossier et repose-pieds), dont il est partie constituante .
    Le chariot d'assise, fixé et pivotant librement sur la base stable et indéformable, supporte et soutient l'assise, elle-même soutenant l'utilisateur . Toute déformation et allongement du chariot d'assise entraîne la déformation et l'allongement de l'assise et donc la variation d'inclinaison de la position de l'utilisateur .
  • 3-c) Le 3ème procédé permet le contrôle de la variation arrière maximale de l'allongement et de la bascule de l'ensemble de la structure assise/chariot d'assise : ce contrôle est assuré par l'existence en butée de 2 arrêtoirs de sécurité fixés sur la base stable et indéformable sur lesquels vient « buter » le chariot d'assise dans sa partie haute .
By the following 3 methods, the system according to the present invention allows a variable, complete and secure inclination of the seat, allowing the user to change the inclination of the seat from the sitting position to the extended position, with all positions possible intermediates, without the risk of overturning in the maximum rear position.
  • 3-a) The 1 st method is based on the constitution of the base of the seat carriage of a deformable semi-parallelepiped centered consisting of two semi-quadrilaterals joined together, equilateral deformable and symmetrical in two planes parallel to the focusing structure seat, allowing free rotation of the seat / seat trolley set suspended on the stable and rigid base:
    • This deformable semi-parallelepiped is defined by the union of the 3 rigid constituent parts of the seat carriage, fixed and pivoting between them and on the base, this meeting forming 2 symmetrical equilateral semi-quadrilaterals in the 2 parallel planes, their equilaterality being defined by the equal distance between the 4 vertex points of the 2 quadrilaterals one by one.
    • These 2 symmetrical equilateral semi-quadrilaterals in 2 parallel planes are each fixed and pivoted by rotation on the stable base at 2 fixed points at their 2 upper ends around 2 fixed imaginary axes parallel to each other and perpendicular to the 2 previous planes, and fixed and pivoting by rotation in 2 points constituted by their 2 lower angles around 2 other axes parallel to the previous ones. These 2 equilateral semi-quadrilaterals are therefore deformable longitudinally in equilateral rhombi flattened by rotation around their 4 angles in the 2 previous parallel planes.
    • The parallelepiped thus formed is deformable longitudinally and symmetrically by pivot on the stable base around its 2 fixed upper axes and around its 2 lower axes, these 4 axes being parallel and perpendicular to the 2 parallel planes axing the structure.
  • 3-b) The 2 nd method consists of the interaction by rotating the previous parallelepiped on the rest of the structure of the seat carriage (back and footrest), which is a constituent part.
    The seat trolley, fixed and pivoted freely on the stable and undeformable base, supports and supports the seat, itself supporting the user. Any deformation and elongation of the seat carriage causes deformation and elongation of the seat and therefore the variation of inclination of the position of the user.
  • 3-c) The 3 rd method allows control of the rear maximum change in elongation and the latch of the assembly of the seating structure / carriage seat: this control is provided by the existence in abutting 2 safety stops fixed on the stable and undeformable base on which "abuts" the seat carriage in its upper part.

4) Système de siège à inclinaison équilibrée par le seul poids du corps4) Tilt seat system balanced by the weight of the body

Le système selon la présente invention permet un contrôle et un équilibre de l'inclinaison de la structure assise/chariot d'assise par le seul poids du corps de l'utilisateur, sans mécanisme ni cran. Ce système est permis par un procédé d'alignement et d'interaction sur un même axe du poids du corps de l'utilisateur dans l'assise du siège et du centre d'équilibre du chariot d'assise.The system according to the present invention allows a control and a balance of the inclination of the seat structure / seat trolley by the weight of the body of the user alone, without mechanism or notch. This system is enabled by a method of alignment and interaction on the same axis of the weight of the user's body in the seat of the seat and balance center of the seat carriage.

Ce procédé d'alignement relie :

  • le point d'équilibre du poids du corps de l'utilisateur au centre de l'assise souple suspendue et fixée en ses 2 extrémités et soutenue et coulissant librement au niveau des genoux (voir procédé 1), sur 3 barres constituantes du chariot d'assise lui-même fixé et pivotant sur une base stable et rigide (voir procédé 3), l'ensemble du chariot d'assise étant équilibrée sur :
  • le point de centrage du parallélépipède déformable précédemment défini (voir procédé 3), situé à l'intersection des axes joignant ses sommets opposés et constituant le point d'équilibre du chariot d'assise .
This alignment process links:
  • the balance point of the weight of the user's body in the center of the flexible seat suspended and fixed at its 2 ends and supported and sliding freely at the knees (see method 1), on 3 constituent bars of the carriage of seat itself fixed and pivoted on a stable and rigid base (see method 3), the assembly of the seat carriage being balanced on:
  • the centering point of the deformable parallelepiped previously defined (see method 3), located at the intersection of the axes joining its opposite vertices and constituting the equilibrium point of the seat carriage.

Les deux points ci-dessus superposés définissent un axe reliant le point d'équilibre du poids du corps de l'utilisateur à celui du chariot d'assise . Le parallélépipède base du chariot d'assise étant constitué de 2 quadrilatères équilatéraux (voir procédé 3), cet axe est parallèle aux axes verticaux de ces 2 quadrilatères et donc au plan d'inclinaison de l'ensemble du chariot d'assise.The above two points superimposed define an axis connecting the balance point of the body weight of the user to that of the seat carriage. The base parallelepiped of the seat carriage consisting of 2 equilateral quadrilaterals (see method 3), this axis is parallel to the vertical axes of these two quadrilaterals and therefore to the plane of inclination of the entire seat carriage.

L'ensemble assise/chariot d'assise étant interactif et pivotant (voir procédé 3), tout transfert du poids du corps de l'utilisateur sur l'assise implique le déplacement réciproque inversé du point de centrage du chariot sur leur axe d'alignement et la déformation corollaire longitudinale du parallélépipède et du chariot d'assise : l'inclinaison du siège suit le poids du corps .Since the seat / seat carriage assembly is interactive and pivotable (see method 3), any transfer of the weight of the user's body onto the seat involves the inverse reciprocal movement of the centering point of the carriage on their alignment axis. and the longitudinal corollary deformation of the parallelepiped and the seat trolley: the inclination of the seat follows the weight of the body.

Le descriptif et la mise en oeuvre des précédents procédés selon la présente invention sont illustrés dans lesThe description and the implementation of the preceding methods according to the present invention are illustrated in the figures 1figures 1 etand 22 suivantes :following:

  • la figure 1 présente le système de la présente invention dans sa configuration assise de départ,the figure 1 present the system of the present invention in its starting seat configuration,
  • la figure 2 présente le système de la présente invention dans sa variation d'inclinaison maximalethe figure 2 presents the system of the present invention in its variation of maximum inclination
Descriptif du système :Description of the system:

En référence à ces 2 figures, ce système comporte 3 grandes composantes :

  1. 1. une assise souple (A), équipée d'un appui-tête (E) amovible et fixé par des attaches latérales réglables (L1, L2) (lacets, scratch, pressions ou autre mode d'attache) . Cette assise est fixée et/ou suspendue sur la chariot d'assise :
    • en ses 2 extrémités sur 2 barres (T2, T5), de manière à coulisser librement en rotation (goussets ou autre mode de fixation), T5 étant fixe et T2 amovible pour permettre la fixation et le réglage de la longueur d'assise
    • au niveau des genoux sur une barre fixe (T1), de manière à coulisser librement
    • au niveau des chevilles sur une barre fixe (T3), de manière à coulisser librement
  2. 2. un chariot d'assise composé de 3 parties rigides, fixées et pivotantes entre elles (B1, B2, B3) , constituant conjointement les cadres du dossier et de l'assise, et s'organisant comme suit:
    • B1 : un semi parallélogramme rigide à 3 côtés en U, supportant l'assise sur son côté supérieur (T5), fixé et pivotant à ses 2 extrémités inférieures par 2 points de rotation symétriques (4), équipés de joints anti-friction, suivant un axe (X4), sur 2 plans parallèles entre eux perpendiculaires à cet axe, sur :
    • B2 : un parallélogramme rigide à 4 côtés, formant repose-pieds intégré (R) sur son côté avant, équipé des 2 barres transversales permettant le coulissement (T3) et la fixation et le réglage en longueur (T2) de l'assise, B2 étant fixé et pivotant en 2 points de rotation symétriques (3), équipés de joints anti-fisction, suivant un axe (X3) parallèle à X4, sur les mêmes 2 plans parallèles précédents sur :
    • B3 : un semi parallélogramme rigide à 3 côtés, son côté supérieur étant décalé à ses 2 extrémités vers l'intérieur du parallélogramme pour constituer une barre fixe transversale (T1) soutenant l'assise au niveau des genoux de l'utilisateur assis et permettant le coulissement libre de celle-ci dans la bascule .

    B1, B2 et B3 étant assemblés et rotatifs entre eux tel que ci-dessus, la structure du chariot d'assise ainsi constituée est suspendue et fixée sur une base stable en 4 derniers points de rotation symétriques 2 par 2 (1 et 2), équipés de joints anti-friction, suivant les 2 axes parallèles entre eux (X1 et X2), eux-mêmes parallèles à X3 et X4 . Sont ainsi définis 2 quadrilatères équilatéraux symétriques (P1/P2) dans 2 plans parallèles déformables en losanges aplatis autour de leurs 4 angles et formant entre eux un parallélépipède déformable symétriquement entre les plans parallèles précédents définis autour des points 1, 2, 3 et 4, par rotation sur :
  3. 3. une base stable et rigide (C) reposant sur le sol, constituée d'éléments symétriques indéformables formant piètement et accoudoirs (F), intégrant des arrêtoirs de sécurité (S) contrôlant en butée la bascule de l'assise en position arrière .
With reference to these 2 figures, this system has 3 main components:
  1. 1. a flexible seat (A), equipped with a removable headrest (E) and fixed by adjustable side fasteners (L1, L2) (laces, scratch, pressure or other attachment mode). This seat is fixed and / or suspended on the seat trolley:
    • in its 2 ends on 2 bars (T2, T5), so as to slide freely in rotation (gussets or other mode of fixing), T5 being fixed and T2 removable to allow the fixation and the adjustment of the length of seat
    • at the knees on a fixed bar (T1), so as to slide freely
    • at the pegs on a fixed bar (T3), so as to slide freely
  2. 2. a seat trolley composed of 3 rigid parts, fixed and pivoted together (B1, B2, B3) , constituting together the frames of the backrest and the seat, and being organized as follows:
    • B1 : a rigid semi parallelogram with 3 U sides, supporting the seat on its upper side (T5), fixed and pivoted at its 2 lower ends by 2 symmetrical rotation points (4), equipped with anti-friction seals, following an axis (X4) , in 2 planes parallel to each other perpendicular to this axis, on:
    • B2 : a rigid parallelogram with 4 sides, integrated footrest (R) on its front side, equipped with 2 crossbars for sliding (T3) and fixing and adjustment in length (T2) of the seat, B2 being fixed and pivoted in 2 symmetrical rotation points (3), equipped with anti-taxing joints, along an axis (X3) parallel to X4, on the same 2 previous parallel planes on:
    • B3 : a semi rigid parallelogram with 3 sides, its upper side being shifted at its 2 ends towards the inside of the parallelogram to form a transverse fixed bar (T1) supporting the seat at the knees of the seated user and allowing the free sliding of it in the rocker.

    B1, B2 and B3 being assembled and rotatable with each other as above, the structure of the seat carriage thus formed is suspended and fixed on a stable base in the last 4 symmetrical rotation points 2 by 2 (1 and 2) , equipped with anti-friction seals, along the 2 axes parallel to each other (X1 and X2), themselves parallel to X3 and X4 . 2 symmetrical equilateral quadrilaterals (P1 / P2) in 2 parallel planes deformable into lozenges flattened around their 4 angles and forming between them a symmetrically deformable parallelepiped between the preceding parallel planes defined around the points 1, 2, 3 and 4, are thus defined. by rotation on:
  3. 3. a stable base and rigid (C) resting on the ground, consisting of symmetrical elements deformable forming base and armrests (F) , incorporating safety stops (S) controlling in stop the rocker of the seat in the rear position.

Les constantes et contraintes à respecter dans l'application de ce système pour qu'il fonctionne, et ce indépendamment de la forme de cette structure, sont :The constants and constraints to be respected in the application of this system so that it works, and irrespective of the form of this structure, are:

  1. a) une équidistance entre les points de rotation 1, 2, 3 et 4, constituant ainsi 2 quadrilatères équilatéraux symétriques (P1/P2) dans 2 plans parallèles déformables en losanges, indépendamment de la distance séparant les 2 quadrilatères et donc les 2 plans . Le parallélépipède déformable constitué par P1/P2, fixés et rotatifs sur une base indéformable, est équilibré dans sa rotation autour de son centre situé en (G')_ intersection des axes joignant les sommets opposés du parallélépipède . Ce centre constitue avec le centre d'équilibre du poids du corps (G) de l'utilisateur un axe parallèle aux axes verticaux des 2 quadrilatères .a) an equidistance between the points of rotation 1, 2, 3 and 4 , thus constituting 2 symmetrical equilateral quadrilaterals (P1 / P2) in 2 parallel planes deformable in rhombs, independently of the distance separating the 2 quadrilaterals and thus the 2 planes . The deformable parallelepiped constituted by P1 / P2, fixed and rotatable on an indeformable base, is balanced in its rotation around its center located in (G ') _ intersection of the axes joining the opposite peaks of the parallelepiped. This center constitutes with the balance center of the body weight (G) of the user an axis parallel to the vertical axes of the two quadrilaterals.
  2. b) une distance des axes X1 et X2 au sol supérieure à la hauteur des 2 quadrilatères P1/P2 (points 1 - 3 et 2 - 4), pour permettre la suspension du chariot d'assise sur la base autorisant la bascule libre du chariot autour de G sans frottement sur le sol .b) a distance from the axes X1 and X2 to the ground greater than the height of the two quadrilaterals P1 / P2 (points 1 - 3 and 2 - 4), to allow the suspension of the seat carriage on the base allowing the free scale of the carriage around G without friction on the ground.

Ce système de siège à assise suspendue ergonomique et relaxante, ajustable, à inclinaison variable complète et sécurisée équilibrée par le poids du corps peut être déclinée :

  • dans tous les matériaux usuels du secteur de l'ameublement (métal, bois, matières composites ou autres) et dans des formes de structure variées (arrondie, angulaire,..), n'étant donc pas soumis à des phénomènes de mode
  • à destination de tous les secteurs économiques requérant du mobilier pratique et confortable (thalassothérapie, équipements hôteliers, décoration, jardinerie,...
This seat system with suspended seat ergonomic and relaxing, adjustable, with variable inclination complete and secure balanced by the weight of the body can be declined:
  • in all the usual materials of the furniture sector (metal, wood, composite materials or other) and in various forms of structure (rounded, angular, ..), therefore not subject to the phenomena of fashion
  • for all economic sectors requiring practical and comfortable furniture (thalassotherapy, hotel equipment, decoration, gardening, ...

Mise en oeuvre du systèmeImplementation of the system

En référence aux figures 1/2 et 2/2, les différents procédés et interactions sont mis en oeuvre par le seul utilisateur assis dans le siège comme suit :

  1. a) L'utilisateur transfère légèrement vers l'avant ou vers l'arrière son poids du corps (G) supporté par l'assise (A) pour obtenir la nouvelle position désirée, sans aucun développement d'effort .
  2. b) Ce transfert du poids du corps de l'utilisateur (G) modifie la position de l'axe imaginaire le reliant au centre du parallélépipède (G')
  3. c) entraînant simultanément :
    • une déformation longitudinale symétrique du parallélépipède rendue possible spécifiquement par sa constitution en 2 quadrilatères équilatéraux symétriques dans 2 plans parallèles (P1, P2) eux-même déformables en losanges aplatis, définis de chaque côté en joignant leurs points de rotation 1 - 2 - 3 et 4 , qui pivotent par rotation sur la base stable autour des 2 axes (X1, X2), ainsi qu'autour de 2 autres axes parallèles de rotation (X3, X4) . Ces 4 axes correspondent aux angles de rotation des quadrilatères (1, 2, 3, 4) .
    • un coulissement libre de l'assise (A), fixée et pivotant (T5, T2) sur le chariot d'assise équilibré et suspendu (B1, B2, B3) qui pivote (X1, X2) sur une base stable et rigide (C), et coulissant librement au niveau des genoux sur la barre (T1) et au niveau des chevilles (T3) Le transfert d'équilibre sur l'assise entraîne le transfert d'équilibre du chariot dans la nouvelle position d'équilibre. Le chariot d'assise subit donc par rotation autour de son centre et sur ses axes un double mouvement contrôlé par le poids du corps de bascule longitudinale et d'allongement (ou de redressement) dans le sens du déplacement de poids imprimé par l'utilisateur .
Referring to Figures 1/2 and 2/2, the various methods and interactions are implemented by the only user sitting in the seat as follows:
  1. a) The user transfers slightly forward or backward his weight of the body (G) supported by the seat (A) to obtain the new desired position, without any development of effort.
  2. b) This transfer of the weight of the user's body (G) modifies the position of the imaginary axis connecting it to the center of the parallelepiped (G ')
  3. (c) causing simultaneously
    • a symmetrical longitudinal deformation of the parallelepiped made specifically possible by its constitution in 2 symmetrical equilateral quadrilaterals in 2 parallel planes (P1, P2) themselves deformable into flattened lozenges, defined on each side by joining their points of rotation 1 - 2 - 3 and 4 , which rotatably rotate on the stable base around the two axes (X1, X2), as well as around 2 other parallel axes of rotation (X3, X4) . These 4 axes correspond to the rotation angles of the quadrilaterals (1, 2, 3, 4) .
    • a free sliding of the seat (A), fixed and pivoting (T5, T2) on the balanced and suspended seat trolley (B1, B2, B3) which pivots (X1, X2) on a stable and rigid base (C ), and sliding freely at the knees on the bar (T1) and at the ankles (T3) The equilibrium transfer on the seat causes the equilibrium transfer of the carriage in the new equilibrium position. The seat carriage is rotated about its center and on its axes by a double movement controlled by the weight of the longitudinal tilting body and elongation (or straightening) in the direction of the weight displacement printed by the user. .

Le repose-pieds (R) intégré dans le chariot d'assise suit naturellement l'allongement ou le redressement du chariot, soutenant les jambes dans toutes les positions .The footrest (R) integrated in the seat trolley naturally follows the extension or straightening of the trolley, supporting the legs in all positions.

Le simple transfert de son poids du corps par l'utilisateur entraîne donc le basculement dynamique contrôlé de l'ensemble du système d'assise du siège , allongeant ou redressant, partiellement ou complètement, le siège selon la position souhaitée . Toutes les positions obtenues sont stables et ne nécessitent aucun effort pour être maintenues .The mere transfer of his body weight by the user thus causes the controlled dynamic tilting of the entire seating system of the seat, lengthening or straightening, partially or completely, the seat according to the desired position. All positions obtained are stable and require no effort to be maintained.

Claims (3)

  1. Seat system with a suspended ergonomic and relaxing seating including a supple fabric(A),
    suspended(T2,T5) on a carriage, (B1,B2,B3), sliding freely at the location of the ankles,(T3) and the knees(T1) on two bars trolley seat, equiped with a cushion headrest adjustable in height(E) and with a footrest(R) integrated with the carriage seat and moving jointly with the inclination of the seat, the seat system is being adjustable to the size of the user by adjusting the lenght of the seat thru modification of the position of the attach bar T2 located at the bottom part of the seat and thru a method of adjustment of the position of the head support constituted by the union of his 3 constituent parts(B1,B2,B3) of a parrallepiped deformable in lenght, consisting of 2 equilateral quadrilaterals deformable symetrically(P1,P2) in 2 parrallels plans supporting the seat(A) of the user and swiveling freely thru rotation on the fixed base(C) for a variable and complete reclining of the seat, the backwards bending to be secured by the presence of stoppers(S) on the fixed base(C).
  2. Seat system with a suspended seat as shown in claim 1,characterized in that the axis alignment of the body weight of the user(G) in seating (A) and the Center of balance of the seat chariot is arranged in such a way that any changing of the position of a body weight(G) implies a joint modification axis of alignment and therefore the position of the point of equilibrium(G') and the deformation of parralelepiped, causing the tilting of the structure of the seating chariot supporting the seat, and thus the tilting and elongation of the seat by the sheer weight of the body of the user.
  3. Seat system with a suspended seat according to claims 1 and 2 characterised by the maximum possible tension adjustement of the lenght of the flexible seat to the maximum displacement of the bottom rear tie bar(T2), the seat being suspended (T2) and (T5) on the carriage seat (B1,B2,B3), the maximum displacament backwards of the position of the attach bar T2 causing traction and maximum pulling of the seat closer the vertical;the reverse modification towards the front of the position of the barT2 causing by opposite an elongation of the seat lenght.
EP04787406A 2003-09-24 2004-09-21 Chair system with a suspended balanced inclination seat adjustable by a body weight only Not-in-force EP1708593B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0311172A FR2859890B1 (en) 2003-09-24 2003-09-24 ERGONOMIC AND RELAXING SUSPENDED SEAT SYSTEM, ADJUSTABLE, COMPLETELY AND SECURELY INCLINED, BALANCED BY THE SAME WEIGHT OF THE BODY WITHOUT MECHANISM OR CRAN
PCT/FR2004/002376 WO2005030006A1 (en) 2003-09-24 2004-09-21 Chair system with a suspended balanced inclination seat adjustable by a body weight only

Publications (2)

Publication Number Publication Date
EP1708593A1 EP1708593A1 (en) 2006-10-11
EP1708593B1 true EP1708593B1 (en) 2010-08-25

Family

ID=34224435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04787406A Not-in-force EP1708593B1 (en) 2003-09-24 2004-09-21 Chair system with a suspended balanced inclination seat adjustable by a body weight only

Country Status (10)

Country Link
US (1) US20060290183A1 (en)
EP (1) EP1708593B1 (en)
JP (1) JP2007507327A (en)
AT (1) ATE478585T1 (en)
AU (1) AU2004275541A1 (en)
CA (1) CA2539700A1 (en)
DE (1) DE602004028869D1 (en)
FR (1) FR2859890B1 (en)
MX (1) MXPA06003296A (en)
WO (1) WO2005030006A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7901435B2 (en) 2004-05-28 2011-03-08 Depuy Spine, Inc. Anchoring systems and methods for correcting spinal deformities
DE102009016968B4 (en) * 2009-04-14 2012-01-26 Votteler Designpartner Gmbh seating
CN103142044A (en) * 2013-04-11 2013-06-12 胡宗芳 Improved arm chair
RU167442U1 (en) * 2016-05-25 2017-01-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Амурский государственный университет" TRANSFORMABLE GARDEN FURNITURE MODULE

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US261336A (en) * 1882-07-18 Reclining-chair
US4367894A (en) * 1980-10-31 1983-01-11 Manuel John L Foldable dental chair
US4877291A (en) * 1987-12-14 1989-10-31 Taylor William P Reclining chair
AT397760B (en) * 1992-02-18 1994-06-27 Hermann Huemer SEAT FURNITURE
NO312491B1 (en) * 1997-02-28 2002-05-21 Kjartan Alvestad Adjusting device for the support frame in reclining or seating furniture
US6030034A (en) * 1997-04-25 2000-02-29 Blue Sky Products Lounge chair accessory
KR100344126B1 (en) * 1999-07-07 2002-07-19 김철규 a multifunctional armchair
US6398298B1 (en) * 2001-02-26 2002-06-04 Sanmaw Lumber & Wood Mfg. Co., Ltd. Foldable rocking chair
EP1383408A1 (en) * 2001-05-03 2004-01-28 Pierre Schneider Set of parts for the easy assembly and transportation of various small pieces of furniture that are used for relaxation purposes

Also Published As

Publication number Publication date
WO2005030006A1 (en) 2005-04-07
MXPA06003296A (en) 2008-09-19
FR2859890B1 (en) 2005-12-02
CA2539700A1 (en) 2005-04-07
EP1708593A1 (en) 2006-10-11
FR2859890A1 (en) 2005-03-25
ATE478585T1 (en) 2010-09-15
AU2004275541A1 (en) 2005-04-07
JP2007507327A (en) 2007-03-29
US20060290183A1 (en) 2006-12-28
DE602004028869D1 (en) 2010-10-07

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