EP1483987B1 - Relaxation chair comprising a flexible member for supporting a user, said flexible member being carried by both a backrest and a seat which are articulated between themselves and slidably mounted on a frame member - Google Patents

Relaxation chair comprising a flexible member for supporting a user, said flexible member being carried by both a backrest and a seat which are articulated between themselves and slidably mounted on a frame member Download PDF

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Publication number
EP1483987B1
EP1483987B1 EP04354023A EP04354023A EP1483987B1 EP 1483987 B1 EP1483987 B1 EP 1483987B1 EP 04354023 A EP04354023 A EP 04354023A EP 04354023 A EP04354023 A EP 04354023A EP 1483987 B1 EP1483987 B1 EP 1483987B1
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EP
European Patent Office
Prior art keywords
seat
frame
rest
elements
rail
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.)
Not-in-force
Application number
EP04354023A
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German (de)
French (fr)
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EP1483987A1 (en
Inventor
Pierre-René Mayer
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Individual
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Individual
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Priority to PL04354023T priority Critical patent/PL1483987T3/en
Publication of EP1483987A1 publication Critical patent/EP1483987A1/en
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Publication of EP1483987B1 publication Critical patent/EP1483987B1/en
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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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/025—Springs not otherwise provided for in A47C7/22 - A47C7/35
    • A47C7/028—Springs not otherwise provided for in A47C7/22 - A47C7/35 with wooden springs, e.g. slated type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/22—Straps or the like for direct user support or for carrying upholstery
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/30—Seat parts with tensioned springs, e.g. of flat type with springs meandering in a flat plane

Definitions

  • the invention is in the field of furniture and more particularly the field of seats mainly comprising a seat and a folder delimiting between them a dihedron to receive the body of the user.
  • It relates to a relaxation seat arranged to vary the angle of the dihedron formed between the seat and the backrest, from a movement of the body of the user installed on the seat.
  • a relaxation seat comprising a chassis of the ground seat, a flexible member for supporting a user, means of articulation of the flexible support member relative to the frame, the hinge means comprising a carrier structure comprising seat and back support members, supported by the frame, hinged relative to each other and having sliding members circulating along guideways defined by corresponding rails fixed to the frame.
  • a seat is commonly composed of a seat and a folder delimiting between them a dihedron to receive the body of the user.
  • those of relaxation are more particularly known organized so as to make it possible to vary the angle of the dihedron, in order to adapt extemporaneously comfort sought by the user.
  • the seat comprises two pivotally articulated elements relative to each other and respectively assigned to the seat and the backrest of the seat.
  • Immobilization means easily reversible to maintain the seat and / or back according to different inclinations desired by the user, depending on the more or less elongated station in which it wishes to be supported by the seat.
  • a first type of relaxation seat it is mainly composed of a chassis carrying rigid elements respectively forming the seat and the backrest. At least one of these elements is supported in an articulated manner by the frame, to give the rigid elements mobility in relative inclination relative to each other.
  • a support member of the body of the user is a flexible member, such as a fabric or the like, forming the seat and the backrest.
  • This fabric is attached to each of its base and top ends on rigid elements of a frame, respectively assigned to support the seating area and the backrest area of the canvas.
  • rigid elements are articulated to each other in their central zone to jointly bear the ground and to allow to change the general orientation of the fabric relative to the rest plane of the seat on the ground.
  • a problem posed for relaxation seats lies in the faculty offered to the user to easily and quickly change the angle of the dihedron defined by the seat and backrest. More precisely, such a modification of angle can be constraining, both with regard to the operation aimed at adjusting the amplitude of this angle, compared with the operation of immobilizing the moving elements.
  • WO-A-9416600 in particular, describes a seat adjustable by the body movements of a user.
  • the seat comprises a seat and a backrest constituting a flexible support member of the user.
  • the seat and the backrest are pivotally mounted relative to one another on two lateral support elements, respectively of the seat and the backrest.
  • the seat also comprises a frame comprising a pair of guide rails for tenons integral with the lateral support element of the seat and a pair of guide rails for tenons integral with the lateral support element of the backrest.
  • the guide rails of the seat are curved, circular in shape and oriented upwards.
  • the seat can, in fact, operate without the assistance of jacks, which constitute balancing and braking devices.
  • jacks which constitute balancing and braking devices.
  • the necessary presence of these cylinders considerably increases the cost of producing the seat.
  • the object of the present invention is to provide a relaxation seat with the ability to quickly change the angle of the dihedron formed between the seat and backrest elements of the seat and maintain them in position, from a movement simple and unique operated naturally by the user with his body against these elements.
  • the relaxation seat is mainly composed of a frame (not shown) supporting a supporting structure 1 of a flexible support member 2 of the body of the user.
  • the chassis is a usual frame in the field, formed from walls assembled together to delimit an overall volume of the seat.
  • the overall volume defined by the frame is a receiving volume of a mobile assembly composed of the supporting structure 1 of the flexible support member 2.
  • the flexible support member 2 consists of a deformable wall between its base ends 3 and vertex 4, said ends 3 and 4 being provided with fasteners 5 to the supporting structure 1
  • the deformability of the flexible support member 2 is in particular a deformability of its overall surface in a plane orthogonal to the rest plane of the seat on the ground.
  • the flexible support member 2 is composed of two rigid frames 6 and 7 freely articulated to one another.
  • the internal space delimited by each of the frames 6 and 7 is dressed by elastic suspension elements deformable, such as springs or slats.
  • These suspension elements are anchored at their lateral edges on the uprights of the frames 6 and 7.
  • these suspension elements consist of cables 8 arranged in spring, while for the other, the suspension elements are
  • the flexible support member 2 is composed of slats 10, 11, assembled together by lateral straps 12.
  • the flexible support member 2 may consist of a fabric or the like, or a web with braided straps or composed of transverse slats carried by side straps.
  • the supporting structure 1 generally comprises a seat element 13 and a backrest element 14, each constituted by a frame and arranged in the extension of one another so as to delimit a receiving dihedron of the body of the user.
  • the seat elements 13 and back 14 can fit into all styles of seat remaining hidden by the flexible support member 2, which provides a significant aesthetic advantage.
  • the seat elements 13 and back 14 are butted and articulated to each other (axis 15) at their adjacent edges 16 and 17, or hinge edges, to allow a variation of the dihedral angle that they delimit jointly.
  • the flexible support member 2 is intended to be fixed to the corresponding free edges of the seat elements 13 and backrest 14, respectively base 18 and crown 19, opposite their edges 16 and 17 of articulation.
  • Each of the seat elements 13 and back 14 is equipped with sliding members 20 and 21, 22, such as rollers, sliders or the like.
  • the same sliding member may be composed of several elementary sliding members associated.
  • the sliding members 20, 21, 22 are attached to each of the lateral edges of the seat elements 13 and backrest 14 to cooperate with respective rails 23 and 24 integral with the frame, which delimit guideways of the sliding members.
  • the seat element 13 comprises a pair of separate sliding members 21 and 22, which are attached to one of its side edges, while the back element 14 has only one 20.
  • the sliding members 20, 21, 22 of the seat elements 13 and of the backrest 14 also constitute and advantageously stop members at the end of the corresponding rail, against the travel of the seat elements 13 and backrest. 14, respectively in the extreme positions of extension and withdrawal of the supporting structure 1.
  • the user bearing against the seat member 13 and the back member 14 of the supporting structure 1 through the flexible support member 2, causes a sliding of the seat member 13 and the backrest member 14 along the corresponding rail, from a concomitant deformation of the flexible support member 2.
  • the holding of the seat elements 13 and back 14 in a predetermined orientation relative to each other results from the antagonism of the support that take the sliding members 20, 21, 22 of the element seat 13 and the back member 14 against the guide rails 23, 24 corresponding, according to their respective guide paths along these rails.
  • the angle variation of the dihedron is a continuous value variation between the extreme positions of the seat elements 13 and backrest 14 respectively corresponding to positions of extension and of folding of the carrier structure 1.
  • the relaxation seat offers the right comfort. This comfort results from the support of the body of the user by the flexible member 2. It also results from the faculty offered by the continuous value variation of the angle of the dihedron delimited between the seat and the seat back. This comfort results still and especially from the simplicity and ease of the operation to change the angle of the dihedron, obtained from a simple support of the pelvis and / or the back operated by the user against the corresponding element of the supporting structure 1, through the flexible support member 2. Such a support naturally causes not only said angle variation, but also immobilization in any position of the seat elements 13 and backrest 14 relative to the chassis.
  • the seat frame is equipped with guide rails 23 and 24 of the sliding members 20, 21 and 22 that comprise the seat elements 13 and the backrest 14, including a guide rail 23 for back member 14 and a guide rail 24 for the seat member 13.
  • the guide rail 23 of the back member 14 defines a single guide path for the corresponding sliding member 20, while the guide rail 24 of the seat element 13 defines two intersecting paths for the respective guiding of the guide members 21 and 22 of the torque that comprises the seat element 13.
  • the guide rail 24, assigned to the seat element 13 is single and curved upwards at its ends, whereas in FIG. 5, the guide rail 24, assigned to the element seat 13, is composed of two elementary guide rails 25 and 26, one rear 26 (close to the articulation of the backrest with the seat) and the other before 25.
  • the guide rail 23, assigned to the back element 14, is inclined relative to the horizontal, that is to say relative to the rest plane of the seat, or by analogy of the frame, on the floor of the seat. an angle D of 45 ° to 55 °, for a length of 220 mm of the guide rail 23.
  • the guide rail 23 is fixed to the frame in an area corresponding to the median zone of the back element 14, situated between its crown edge 19 and its hinge edge 17 to the seat element 13. More in particular, the guide zone of the backrest element 14, via the corresponding guiding rail 23, is situated between the bearing zones of the user on the flexible support member 2, and in particular under the support area of the back and above the pelvic support area.
  • the guide rail 23 of the back member 14 provides a "back to wall” function, that is to say, it eliminates the back of the backrest during its tilting. This allows the seat against a wall without interfering with tilting.
  • the length and the angle of inclination of the guide rail 23 of the backrest element 14 are determined by taking into account, first of all, the space requirements of the seat, the guide rail 23 preferably having to be masked. . In addition, they take into account the length and inclination of the guide rail 24 of the seat element 13, or those of the elementary guide rails 25 and 26 that compose it. They take into account, in addition, the position of the various sliding members 20, 21, 22 that the carrier structure 1 comprises, and in particular the position of the front sliding member 21 assigned to the seat element 13.
  • the elementary front rails 25 and rear 26 for guiding the seat element 13 are substantially rectilinear and inclined in opposition to the horizontal.
  • the rear elementary rail 26 is in particular inclined downwards, towards the front of the seat, with respect to the horizontal, that is to say with respect to the rest plane of the chassis on the ground, from an angle A of the order of 5 ° to 9 °, while the elementary rail before 25 is inclined upwards towards the front of the seat by an angle B of the order of 2 ° to 6 °.
  • the front elementary rail 25 is, moreover, preferably flexed forwardly and upwardly of the seat, so as to form at its forward end an angle C, of the order of 8 ° to 12 ° with the horizontal. This gives the carrier structure 1 a tilting effect backwards concomitantly with its extension.
  • the rear elementary rail 26 has a length of the order of 310 mm
  • the front elementary rail 25 has a length of the order of 320 mm
  • the rail 23 of backrest has a length of the order of 220 mm.
  • the rear sliding member 22 of the seat element 13 is located at about 40 mm from the axis 15 of articulation of the seat elements 13 and backrest 14, while the front sliding member 21 is located approximately 310 mm behind the base edge 18 of the seat member 13.
  • the sliding member 20 assigned to the back member 14 is, in turn, located in a median zone between the vertex 19 and hinge edges 17 of the back element 14.
  • the seat elements 13 and the backrest 14 each comprise at least one inflection zone, respectively 27 and 28, for keeping the flexible support member 2 of the elements 13 and 14 at a distance.
  • Inflection 27 of the seat element 13 is preferably located in the vicinity of its base edge 18.
  • the zones 27 and 28 of inflection of the seat elements 13 and backrest 14 are arranged between their free edge 18, 19 and their hinge edge 16, 17.
  • the flexible support member 2 is thus kept at a distance from the supporting structure 1, above the seat element 13 and in front of the file element 14, even when the user is installed in the seat. seat.
  • the flexible support member 2 is in practice the operating member, causing the sliding of the seat elements 13 and backrest 14 on the frame.
  • the inflections 27, 28 of the elements 13 and 14 then promote the deformation and mobility of the flexible member 2, such as its swinging and bending.
  • Such deformation and mobility allow an accompaniment by the flexible support member 2 of the movements of the body of the user during maneuvering the carrier structure 1, which is thus avoided having to directly support.
  • the lift and the movement of the supporting structure 1 on the chassis are obtained in particular by the combination between the articulated arrangement of the supporting structure 1 of the flexible support member 2 and the assembly of sliding comprising the three sliding members 20, 21 and 22 forming the bearing points that takes the carrier structure 1 on the frame.
  • the faculty offered a continuous variation of the positions of the carrier structure 1, so that each user, according to his morphology and his mood, can find the position that suits him best, from the vertical station in the extreme position of withdrawal from the supporting structure 1 (FIG. 6) to an extended station in the extreme extension position of the supporting structure 1 (FIG. 10).
  • the carrier structure 1 When the carrier structure 1 is in any extended position, the user, to get up, sketch a corresponding movement, relieving the back forward. Without further action on its part, the carrier structure 1 slides along the chassis to its extreme retracted position.
  • Such a result is particularly obtained from an appropriate combination between the respective positions of the sliding members 20, 21, 22 on the carrier structure 1, the length, shape and position of the guide rails 23, 25, 26 on the frame, and the shape of the seat elements 13 and backrest 14 of the supporting structure 1.
  • Such a combination follows. in particular the ease of sliding of the carrier structure 1 on the chassis in translation and tilting forward extension, and the automaticity of the folding movement of the carrier structure 1 caused by the restoring torque exerted by the holding in suspension on the frame of the carrier structure 1, when sliding in the retracted position.
  • the position of the front sliding member 21 of the seat element 13 determines the opening in maximum extension of the supporting structure 1, because of its participation in means of abutment of said structure 1 against the end of the elementary rail before 25, as well as the degree of tilting of the seat element 13 causing the tilting of the supporting structure 1 and the leverage effect necessary for the automation of the sliding towards the rear of the structure carrier 1.
  • the inclination and length of the rails therefore allow a specific adjustment depending on the type of comfort sought.
  • the feeling of comfort is different depending on the position of the seat, which generates a wealth of use.
  • the flexible support member 2 may be constituted by other similar embodiments, the desired structural qualities being to be deformable between its base 3 and vertex ends 4 through which it is attached to the supporting structure 1, in order to transmit to the corresponding edges of the seat elements 13 and backrest 14 the tensions to which the flexible support member 2 is subjected under the effect of the support that the user takes against this last.
  • angle and dimension of the guide rails 23, 24, 25, 26 are given as an indication, a variation in dimensions of the carrier structure 1 resulting in corresponding variations of said angle and dimension values.
  • the seat may comprise accessory locking means of the supporting structure 1 in any of its positions, to prohibit spontaneous modification of the angle of the dihedral when the seat is unoccupied. This spontaneous modification is particularly likely to occur under the effect of a support exercised at the top of the seat by an inattentive person when the carrier structure 1 is in the folded position.
  • These locking means may in particular be constituted by a member preventing the sliding of the seat member 13 on the frame, or by a cooperation between two cooperating interlocking members, respectively supported by the supporting structure 1 and the frame, said cooperation being implemented from a voluntary gesture of the user when leaving the seat.
  • the seat may also comprise accessory means for assisting in the sliding operation of the seat elements 13 and backrest 14 along the guide rails 23, 24 which are assigned to them.
  • An electric jack can, for example, be interposed between the frame on which it is fixed, for example by clipping, and a support beam formed on the seat element 13.

Abstract

The seat has a base component (13) and a backrest component (14) articulated at their connection edges for allowing variation of dihedral angle. The angle is formed between the components to receive users body. Each component has a curved zone to maintain a flexible support unit (2) at a distance from a carrier structure (1), above the component (13) and in front of the component (14), when the user is seated.

Description

L'invention est du domaine de l'ameublement et plus particulièrement du domaine des sièges comprenant principalement une assise et un dossier délimitant entre eux un dièdre pour recevoir le corps de l'utilisateur.The invention is in the field of furniture and more particularly the field of seats mainly comprising a seat and a folder delimiting between them a dihedron to receive the body of the user.

Elle a pour objet un siège de relaxation aménagé pour faire varier l'angle du dièdre formé entre l'assise et le dossier, à partir d'un mouvement du corps de l'utilisateur installé sur le siège.It relates to a relaxation seat arranged to vary the angle of the dihedron formed between the seat and the backrest, from a movement of the body of the user installed on the seat.

Elle concerne un siège de relaxation comprenant un châssis de repos du siège au sol, un organe souple de soutien d'un utilisateur, des moyens d'articulation de l'organe souple de soutien par rapport au châssis, les moyens d'articulation comportant une structure porteuse comportant des éléments de support d'assise et de dossier, supportés par le châssis, articulés les uns par rapport aux autres et comportant des organes de coulissement circulant le long de chemins de guidage délimités par des rails correspondants fixés sur le châssis.It relates to a relaxation seat comprising a chassis of the ground seat, a flexible member for supporting a user, means of articulation of the flexible support member relative to the frame, the hinge means comprising a carrier structure comprising seat and back support members, supported by the frame, hinged relative to each other and having sliding members circulating along guideways defined by corresponding rails fixed to the frame.

État de la techniqueState of the art

Un siège est couramment composé d'une assise et d'un dossier délimitant entre eux un dièdre pour recevoir le corps de l'utilisateur. Parmi les sièges, on connaît plus particulièrement ceux de relaxation organisés pour permettre de faire varier l'angle du dièdre, en vue de l'adapter extemporanément au confort recherché par l'utilisateur.A seat is commonly composed of a seat and a folder delimiting between them a dihedron to receive the body of the user. Among the seats, those of relaxation are more particularly known organized so as to make it possible to vary the angle of the dihedron, in order to adapt extemporaneously comfort sought by the user.

De manière courante, le siège comporte deux éléments articulés en pivotement l'un par rapport à l'autre et respectivement affectés à l'assise et au dossier du siège. Des moyens d'immobilisation facilement réversibles permettent de maintenir l'assise et/ou le dossier suivant différentes inclinaisons désirées par l'utilisateur, en fonction de la station plus ou moins allongée dans laquelle il souhaite être soutenu par le siège.Usually, the seat comprises two pivotally articulated elements relative to each other and respectively assigned to the seat and the backrest of the seat. Immobilization means easily reversible to maintain the seat and / or back according to different inclinations desired by the user, depending on the more or less elongated station in which it wishes to be supported by the seat.

Selon un premier type de siège de relaxation, celui-ci est principalement composé d'un châssis porteur d'éléments rigides formant respectivement l'assise et le dossier. L'un au moins de ces éléments est supporté de manière articulée par le châssis, pour conférer aux éléments rigides une mobilité en inclinaison relative l'un par rapport à l'autre.According to a first type of relaxation seat, it is mainly composed of a chassis carrying rigid elements respectively forming the seat and the backrest. At least one of these elements is supported in an articulated manner by the frame, to give the rigid elements mobility in relative inclination relative to each other.

Selon un deuxième type de siège de relaxation, un organe de soutien du corps de l'utilisateur est un organe flexible, tel qu'une toile ou analogue, formant l'assise et le dossier. Cette toile est fixée à chacune de ses extrémités de base et de sommet sur des éléments rigides d'un châssis, respectivement affectés au soutien de la zone d'assise et de la zone de dossier de la toile. Ces éléments rigides sont articulés l'un à l'autre dans leur zone médiane pour prendre conjointement appui au sol et pour permettre de modifier l'orientation générale de la toile par rapport au plan de repos du siège sur le sol.According to a second type of relaxation seat, a support member of the body of the user is a flexible member, such as a fabric or the like, forming the seat and the backrest. This fabric is attached to each of its base and top ends on rigid elements of a frame, respectively assigned to support the seating area and the backrest area of the canvas. These rigid elements are articulated to each other in their central zone to jointly bear the ground and to allow to change the general orientation of the fabric relative to the rest plane of the seat on the ground.

Un problème posé pour les sièges de relaxation réside dans la faculté offerte pour l'utilisateur de modifier aisément et rapidement l'angle du dièdre délimité par l'assise et le dossier. Plus précisément, une telle modification d'angle peut être contraignante, tant au regard de l'opération visant à ajuster l'amplitude de cet angle, qu'au regard de l'opération consistant à immobiliser ensuite les éléments mobiles.A problem posed for relaxation seats lies in the faculty offered to the user to easily and quickly change the angle of the dihedron defined by the seat and backrest. More precisely, such a modification of angle can be constraining, both with regard to the operation aimed at adjusting the amplitude of this angle, compared with the operation of immobilizing the moving elements.

Le document WO-A-9416600, notamment, décrit un siège ajustable par les mouvements de corps d'un utilisateur. Le siège comporte une assise et un dossier constituant un organe souple de soutien de l'utilisateur. L'assise et le dossier sont montés à pivotement l'un par rapport à l'autre sur deux éléments latéraux de support, respectivement de l'assise et du dossier. Le siège comporte également un châssis comportant une paire de rails de guidage pour des tenons solidaires de l'élément latéral de support de l'assise et une paire de rails de guidage pour des tenons solidaires de l'élément latéral de support du dossier. Les rails de guidage de l'assise sont incurvés, de forme circulaire et orientés vers le haut.WO-A-9416600, in particular, describes a seat adjustable by the body movements of a user. The seat comprises a seat and a backrest constituting a flexible support member of the user. The seat and the backrest are pivotally mounted relative to one another on two lateral support elements, respectively of the seat and the backrest. The seat also comprises a frame comprising a pair of guide rails for tenons integral with the lateral support element of the seat and a pair of guide rails for tenons integral with the lateral support element of the backrest. The guide rails of the seat are curved, circular in shape and oriented upwards.

Cependant, le siège ne peut, en réalité, fonctionner sans l'assistance de vérins, qui constituent des organes d'équilibrage et de freinage. La nécessaire présence de ces vérins augmente considérablement le coût de réalisation du siège.However, the seat can, in fact, operate without the assistance of jacks, which constitute balancing and braking devices. The necessary presence of these cylinders considerably increases the cost of producing the seat.

Objet de l'inventionObject of the invention

Le but de la présente invention est de proposer un siège de relaxation offrant la possibilité de modifier rapidement l'angle du dièdre formé entre des éléments d'assise et de dossier du siège et de maintenir ces derniers en position, à partir d'un mouvement simple et unique opéré naturellement par l'utilisateur avec son corps contre ces éléments.The object of the present invention is to provide a relaxation seat with the ability to quickly change the angle of the dihedron formed between the seat and backrest elements of the seat and maintain them in position, from a movement simple and unique operated naturally by the user with his body against these elements.

Ce but est atteint par un siège selon les revendications annexées et, plus particulièrement, par le fait que :

  • les éléments de support d'assise et de dossier sont constitués par deux cadres formant respectivement un élément d'assise et un élément de dossier, comportant respectivement un bord libre de base et un bord libre de sommet, et articulés par des bords d'articulation respectifs,
  • l'organe souple de soutien est fixé aux bords libres des éléments de support,
  • les éléments d'assise et de dossier comportent chacun au moins une inflexion, entre leur bord libre et leur bord d'articulation, de manière à ce que l'organe souple de soutien soit maintenu à distance de la structure porteuse, au-dessus de l'élément d'assise et en avant de l'élément de dossier, y compris lorsque l'utilisateur est installé dans le siège.
This object is achieved by a seat according to the appended claims and, more particularly, by the fact that:
  • the seat and backrest support elements are constituted by two frames respectively forming a seat element and a backrest element, respectively comprising a free edge of base and a free edge of vertex, and articulated by hinge edges respective,
  • the flexible support member is attached to the free edges of the support members,
  • the seat and back elements each comprise at least one inflection, between their free edge and their hinge edge, so that the flexible support member is kept at a distance from the supporting structure, above the seating element and in front of the backrest element, including when the user is installed in the seat.

Description des figuresDescription of figures

La présente invention sera mieux comprise, et des détails en relevant apparaîtront, à la description qui va en être faite en relation avec les figures des planches annexées, dans lesquelles :

  • Les fig.1 et fig.2 sont des illustrations en perspective d'un organe souple de soutien participant d'un siège de relaxation de la présente invention, selon différents exemples respectifs de réalisation.
  • La fig.3 est une illustration en perspective d'une ossature porteuse participant d'un siège de relaxation de la présente invention, selon un exemple de réalisation.
  • Les fig.4 et fig.5 sont des schémas de côté illustrant un siège de relaxation de la présente invention, selon différents exemples respectifs de réalisation.
  • Les fig.6 à fig.10 sont des schémas de côté du siège représenté sur la fig.5, illustrant respectivement différentes positions successives du siège entre ses positions extrêmes de repli et d'extension.
The present invention will be better understood, and details will arise from the description which will be made in connection with the figures of the attached plates, in which:
  • Fig.1 and Fig.2 are perspective illustrations of a supportive supportive member of a relaxation seat of the present invention, according to various respective embodiments.
  • Fig.3 is a perspective illustration of a supporting framework participating in a relaxation seat of the present invention, according to an exemplary embodiment.
  • Fig.4 and Fig.5 are side diagrams illustrating a relaxation seat of the present invention, according to various respective embodiments.
  • Fig.6 to Fig.10 are side diagrams of the seat shown in Fig.5, respectively illustrating different successive positions of the seat between its extreme positions of folding and extension.

Description de modes particuliers de réalisationDescription of particular embodiments

Comme représenté sur les figures 4 et 5, le siège de relaxation est principalement composé d'un châssis (non représenté) supportant une structure porteuse 1 d'un organe de soutien souple 2 du corps de l'utilisateur.As shown in Figures 4 and 5, the relaxation seat is mainly composed of a frame (not shown) supporting a supporting structure 1 of a flexible support member 2 of the body of the user.

Le châssis, non représenté sur les figures, est un châssis habituel dans le domaine, formé à partir de parois assemblées entre elles pour délimiter un volume hors tout du siège. Le volume hors tout délimité par le châssis est un volume de réception d'un ensemble mobile composé de la structure porteuse 1 de l'organe souple de soutien 2.The chassis, not shown in the figures, is a usual frame in the field, formed from walls assembled together to delimit an overall volume of the seat. The overall volume defined by the frame is a receiving volume of a mobile assembly composed of the supporting structure 1 of the flexible support member 2.

Sur les figures 1 et 2, l'organe souple de soutien 2 est constitué d'une paroi déformable entre ses extrémités de base 3 et de sommet 4, lesdites extrémités 3 et 4 étant équipées d'organes de fixation 5 à la structure porteuse 1. La déformabilité de l'organe souple de soutien 2 est notamment une déformabilité de sa surface globale dans un plan orthogonal au plan de repos du siège au sol.In FIGS. 1 and 2, the flexible support member 2 consists of a deformable wall between its base ends 3 and vertex 4, said ends 3 and 4 being provided with fasteners 5 to the supporting structure 1 The deformability of the flexible support member 2 is in particular a deformability of its overall surface in a plane orthogonal to the rest plane of the seat on the ground.

Sur la figure 1, l'organe souple de soutien 2 est composé de deux cadres rigides 6 et 7 librement articulés l'un à l'autre. L'espace interne délimité par chacun des cadres 6 et 7 est habillé par des éléments de suspension élastiquement déformables, tels que des ressorts ou des lattes. Ces éléments de suspension sont ancrés à leurs bords latéraux sur des montants des cadres 6 et 7. Pour le cadre supérieur 6, ces éléments de suspension sont constitués de câbles 8 agencés en ressort, tandis que pour l'autre, les éléments de suspension sont constitués de lattes 9. Ces éléments 8 et 9 sont décrits à titre d'exemples non limitatifs et peuvent être indifféremment transposés de l'un à l'autre des cadres 6 et 7. Sur la figure 2, l'organe souple de soutien 2 est composé de lattes 10, 11, assemblées entre elles par des sangles latérales 12.In Figure 1, the flexible support member 2 is composed of two rigid frames 6 and 7 freely articulated to one another. The internal space delimited by each of the frames 6 and 7 is dressed by elastic suspension elements deformable, such as springs or slats. These suspension elements are anchored at their lateral edges on the uprights of the frames 6 and 7. For the upper frame 6, these suspension elements consist of cables 8 arranged in spring, while for the other, the suspension elements are These elements 8 and 9 are described by way of nonlimiting examples and may be interchanged from one another to the frames 6 and 7. In FIG. 2, the flexible support member 2 is composed of slats 10, 11, assembled together by lateral straps 12.

En variante, l'organe souple de soutien 2 peut être constitué d'une toile ou analogue, ou encore d'une nappe comportant des sangles tressées ou composée de lattes transversales portées par des sangles latérales.Alternatively, the flexible support member 2 may consist of a fabric or the like, or a web with braided straps or composed of transverse slats carried by side straps.

Sur la figure 3, la structure porteuse 1 comporte globalement un élément d'assise 13 et un élément de dossier 14, constitués chacun par un cadre et disposés dans le prolongement l'un de l'autre de manière à délimiter un dièdre de réception du corps de l'utilisateur. Grâce à l'utilisation de cadres, les éléments d'assise 13 et de dossier 14 peuvent s'insérer dans tous les styles de siège en restant masqué par l'organe souple de soutien 2, ce qui procure un avantage esthétique important.In FIG. 3, the supporting structure 1 generally comprises a seat element 13 and a backrest element 14, each constituted by a frame and arranged in the extension of one another so as to delimit a receiving dihedron of the body of the user. With the use of frames, the seat elements 13 and back 14 can fit into all styles of seat remaining hidden by the flexible support member 2, which provides a significant aesthetic advantage.

Les éléments d'assise 13 et de dossier 14 sont aboutés et articulés l'un à l'autre (axe 15) à leurs bords voisins 16 et 17, ou bords d'articulation, pour permettre une variation de l'angle du dièdre qu'ils délimitent conjointement. L'organe souple de soutien 2 est destiné à être fixé aux bords libres correspondants des éléments d'assise 13 et de dossier 14, respectivement de base 18 et de sommet 19, opposés à leurs bords 16 et 17 d'articulation.The seat elements 13 and back 14 are butted and articulated to each other (axis 15) at their adjacent edges 16 and 17, or hinge edges, to allow a variation of the dihedral angle that they delimit jointly. The flexible support member 2 is intended to be fixed to the corresponding free edges of the seat elements 13 and backrest 14, respectively base 18 and crown 19, opposite their edges 16 and 17 of articulation.

Chacun des éléments d'assise 13 et de dossier 14 est équipé d'organes de coulissement 20 et 21, 22, tels que des galets, des coulisseaux ou analogues. Un même organe de coulissement peut être composé de plusieurs organes élémentaires de coulissement associés. Les organes de coulissement 20, 21, 22 sont rapportés sur chacun des bords latéraux des éléments d'assise 13 et de dossier 14 pour coopérer avec des rails respectifs 23 et 24, solidaires du châssis, qui délimitent des chemins de guidage des organes de coulissement. L'élément d'assise 13 comporte un couple d'organes de coulissement distincts 21 et 22, qui sont rapportés sur un même de ses bords latéraux, tandis que l'élément de dossier 14 n'en comporte qu'un seul 20.Each of the seat elements 13 and back 14 is equipped with sliding members 20 and 21, 22, such as rollers, sliders or the like. The same sliding member may be composed of several elementary sliding members associated. The sliding members 20, 21, 22 are attached to each of the lateral edges of the seat elements 13 and backrest 14 to cooperate with respective rails 23 and 24 integral with the frame, which delimit guideways of the sliding members. . The seat element 13 comprises a pair of separate sliding members 21 and 22, which are attached to one of its side edges, while the back element 14 has only one 20.

Les organes de coulissement 20, 21, 22 des éléments d'assise 13 et de dossier 14 constituent en outre et avantageusement des organes de butée en bout du rail correspondant, à l'encontre de la course des éléments d'assise 13 et de dossier 14, respectivement dans les positions extrêmes d'extension et de repli de la structure porteuse 1.The sliding members 20, 21, 22 of the seat elements 13 and of the backrest 14 also constitute and advantageously stop members at the end of the corresponding rail, against the travel of the seat elements 13 and backrest. 14, respectively in the extreme positions of extension and withdrawal of the supporting structure 1.

L'utilisateur, prenant appui contre l'élément d'assise 13 et l'élément de dossier 14 de la structure porteuse 1 par l'intermédiaire de l'organe souple de soutien 2, provoque un glissement de l'élément d'assise 13 et de l'élément de dossier 14 le long du rail correspondant, à partir d'une déformation concomitante de l'organe souple de soutien 2.The user, bearing against the seat member 13 and the back member 14 of the supporting structure 1 through the flexible support member 2, causes a sliding of the seat member 13 and the backrest member 14 along the corresponding rail, from a concomitant deformation of the flexible support member 2.

Le maintien des éléments d'assise 13 et de dossier 14 suivant une orientation prédéterminée l'un par rapport à l'autre résulte de l'antagonisme de l'appui que prennent les organes de coulissement 20, 21, 22 de l'élément d'assise 13 et de l'élément de dossier 14 contre les rails de guidage 23, 24 correspondant, en fonction de leurs chemins de guidage respectifs le long de ces rails.The holding of the seat elements 13 and back 14 in a predetermined orientation relative to each other results from the antagonism of the support that take the sliding members 20, 21, 22 of the element seat 13 and the back member 14 against the guide rails 23, 24 corresponding, according to their respective guide paths along these rails.

La variation d'angle du dièdre est une variation à valeur continue entre les positions extrêmes des éléments d'assise 13 et de dossier 14 correspondant respectivement à des positions d'extension et de repli de la structure porteuse 1.The angle variation of the dihedron is a continuous value variation between the extreme positions of the seat elements 13 and backrest 14 respectively corresponding to positions of extension and of folding of the carrier structure 1.

Le siège de relaxation offre ainsi un confort idoine. Ce confort résulte du soutien du corps de l'utilisateur par l'organe souple 2. Il résulte aussi de la faculté offerte par la variation à valeur continue de l'angle du dièdre délimité entre l'assise et le dossier du siège. Ce confort résulte encore et surtout de la simplicité et de l'aisance de l'opération visant à modifier l'angle du dièdre, obtenue à partir d'un simple appui du bassin et/ou du dos opéré par l'utilisateur contre l'élément correspondant de la structure porteuse 1, par l'intermédiaire de l'organe souple de soutien 2. Un tel appui provoque naturellement non seulement ladite variation d'angle, mais aussi une immobilisation en une position quelconque des éléments d'assise 13 et de dossier 14 par rapport au châssis.The relaxation seat offers the right comfort. This comfort results from the support of the body of the user by the flexible member 2. It also results from the faculty offered by the continuous value variation of the angle of the dihedron delimited between the seat and the seat back. This comfort results still and especially from the simplicity and ease of the operation to change the angle of the dihedron, obtained from a simple support of the pelvis and / or the back operated by the user against the corresponding element of the supporting structure 1, through the flexible support member 2. Such a support naturally causes not only said angle variation, but also immobilization in any position of the seat elements 13 and backrest 14 relative to the chassis.

Sur les figures 4 et 5, le châssis du siège est équipé de rails de guidage 23 et 24 des organes de coulissement 20, 21 et 22 que comportent les éléments d'assise 13 et de dossier 14, dont un rail de guidage 23 pour l'élément de dossier 14 et un rail de guidage 24 pour l'élément d'assise 13. Le rail de guidage 23 de l'élément de dossier 14 définit un chemin de guidage unique pour l'organe de coulissement 20 correspondant, tandis que le rail de guidage 24 de l'élément d'assise 13 définit deux chemins concourants pour le guidage respectif des organes de guidage 21 et 22 du couple que comporte l'élément d'assise 13.In FIGS. 4 and 5, the seat frame is equipped with guide rails 23 and 24 of the sliding members 20, 21 and 22 that comprise the seat elements 13 and the backrest 14, including a guide rail 23 for back member 14 and a guide rail 24 for the seat member 13. The guide rail 23 of the back member 14 defines a single guide path for the corresponding sliding member 20, while the guide rail 24 of the seat element 13 defines two intersecting paths for the respective guiding of the guide members 21 and 22 of the torque that comprises the seat element 13.

Sur la figure 4, le rail de guidage 24, affecté à l'élément d'assise 13, est unique et incurvé vers le haut à ses extrémités, tandis que sur la figure 5, le rail de guidage 24, affecté à l'élément d'assise 13, est composé de deux rails de guidage élémentaires 25 et 26, l'un arrière 26 (proche de l'articulation du dossier avec l'assise) et l'autre avant 25.In FIG. 4, the guide rail 24, assigned to the seat element 13, is single and curved upwards at its ends, whereas in FIG. 5, the guide rail 24, assigned to the element seat 13, is composed of two elementary guide rails 25 and 26, one rear 26 (close to the articulation of the backrest with the seat) and the other before 25.

Le rail de guidage 23, affecté à l'élément de dossier 14, est incliné par rapport à l'horizontale, c'est-à-dire par rapport au plan de repos du siège, ou par analogie du châssis, sur le sol d'un angle D de 45° à 55°, pour une longueur de 220 mm du rail de guidage 23.The guide rail 23, assigned to the back element 14, is inclined relative to the horizontal, that is to say relative to the rest plane of the seat, or by analogy of the frame, on the floor of the seat. an angle D of 45 ° to 55 °, for a length of 220 mm of the guide rail 23.

Le rail de guidage 23 est fixé sur le châssis dans une zone correspondant à la zone médiane de l'élément de dossier 14, située entre son bord de sommet 19 et son bord d'articulation 17 à l'élément d'assise 13. Plus particulièrement, la zone de guidage de l'élément de dossier 14, par l'intermédiaire du rail de guidage 23 correspondant, est située entre les zones d'appui de l'utilisateur sur l'organe souple de soutien 2, et notamment sous la zone d'appui du dos et au-dessus de la zone d'appui du bassin.The guide rail 23 is fixed to the frame in an area corresponding to the median zone of the back element 14, situated between its crown edge 19 and its hinge edge 17 to the seat element 13. More in particular, the guide zone of the backrest element 14, via the corresponding guiding rail 23, is situated between the bearing zones of the user on the flexible support member 2, and in particular under the support area of the back and above the pelvic support area.

Le rail de guidage 23 de l'élément de dossier 14 assure une fonction « dos au mur », c'est-à-dire qu'il élimine le recul du dossier pendant son basculement. Cela permet de disposer le siège contre un mur sans gêner le basculement.The guide rail 23 of the back member 14 provides a "back to wall" function, that is to say, it eliminates the back of the backrest during its tilting. This allows the seat against a wall without interfering with tilting.

La longueur et l'angle d'inclinaison du rail de guidage 23 de l'élément de dossier 14 sont déterminés en prenant en compte en premier lieu des contraintes d'encombrement du siège, le rail de guidage 23 devant, de préférence, être masqué. En outre, ils prennent en compte la longueur et l'inclinaison du rail de guidage 24 de l'élément d'assise 13, voire ceux des rails élémentaires de guidage 25 et 26 qui le composent. Ils prennent, de plus, en compte la position des différents organes de coulissement 20, 21, 22 que comporte la structure porteuse 1, et notamment la position de l'organe de coulissement avant 21 affecté à l'élément d'assise 13.The length and the angle of inclination of the guide rail 23 of the backrest element 14 are determined by taking into account, first of all, the space requirements of the seat, the guide rail 23 preferably having to be masked. . In addition, they take into account the length and inclination of the guide rail 24 of the seat element 13, or those of the elementary guide rails 25 and 26 that compose it. They take into account, in addition, the position of the various sliding members 20, 21, 22 that the carrier structure 1 comprises, and in particular the position of the front sliding member 21 assigned to the seat element 13.

Sur les figures 5 à 10, les rails élémentaires avant 25 et arrière 26 de guidage de l'élément d'assise 13 sont sensiblement rectilignes et inclinés en opposition par rapport à l'horizontale.In FIGS. 5 to 10, the elementary front rails 25 and rear 26 for guiding the seat element 13 are substantially rectilinear and inclined in opposition to the horizontal.

Le rail élémentaire arrière 26 est notamment incliné vers le bas, en direction de l'avant du siège, par rapport à l'horizontale, c'est-à-dire par rapport au plan de repos du châssis au sol, d'un angle A de l'ordre de 5° à 9°, tandis que le rail élémentaire avant 25 est incliné vers le haut en direction de l'avant du siège d'un angle B de l'ordre de 2° à 6°.The rear elementary rail 26 is in particular inclined downwards, towards the front of the seat, with respect to the horizontal, that is to say with respect to the rest plane of the chassis on the ground, from an angle A of the order of 5 ° to 9 °, while the elementary rail before 25 is inclined upwards towards the front of the seat by an angle B of the order of 2 ° to 6 °.

Le rail élémentaire avant 25 est, de plus, de préférence, infléchi vers l'avant et vers le haut du siège, de manière à former à son extrémité avant un angle C, de l'ordre de 8° à 12° avec l'horizontale. Ceci confère à la structure porteuse 1 un effet de basculement vers l'arrière concomitamment à son extension.The front elementary rail 25 is, moreover, preferably flexed forwardly and upwardly of the seat, so as to form at its forward end an angle C, of the order of 8 ° to 12 ° with the horizontal. This gives the carrier structure 1 a tilting effect backwards concomitantly with its extension.

Selon un exemple de réalisation relatif à un siège de dimensions courantes, le rail élémentaire arrière 26 a une longueur de l'ordre de 310 mm, le rail élémentaire avant 25 a une longueur de l'ordre de 320 mm, et le rail 23 de dossier a une longueur de l'ordre de 220 mm.According to an exemplary embodiment relating to a seat of common dimensions, the rear elementary rail 26 has a length of the order of 310 mm, the front elementary rail 25 has a length of the order of 320 mm, and the rail 23 of backrest has a length of the order of 220 mm.

Dans cet exemple de réalisation, l'organe arrière 22 de coulissement de l'élément d'assise 13 est situé à environ 40 mm de l'axe 15 d'articulation des éléments d'assise 13 et de dossier 14, tandis que l'organe de coulissement avant 21 est situé à environ 310 mm à l'arrière du bord de base 18 de l'élément d'assise 13. L'organe de coulissement 20 affecté à l'élément de dossier 14 est, quant à lui, situé dans une zone médiane entre les bords de sommet 19 et d'articulation 17 de l'élément de dossier 14.In this exemplary embodiment, the rear sliding member 22 of the seat element 13 is located at about 40 mm from the axis 15 of articulation of the seat elements 13 and backrest 14, while the front sliding member 21 is located approximately 310 mm behind the base edge 18 of the seat member 13. The sliding member 20 assigned to the back member 14 is, in turn, located in a median zone between the vertex 19 and hinge edges 17 of the back element 14.

Les pentes opposées des deux rails élémentaires avant 25 et arrière 26 de l'élément d'assise 13 d'une part, la pente du rail de guidage 23 de l'élément de dossier 14 d'autre part, et les positions relatives des organes de coulissement 20, 21, 22 sur la structure porteuse 1 permettent le contrôle de l'angle de l'assise et créent un effet d'auto-équilibrage du siège, qui reste stable dans l'une quelconque de ses positions. Tout accessoire de blocage du siège est donc rendu inutile, lorsque l'utilisateur arrête le siège en un point quelconque de sa course. Cela confère une réelle facilité d'utilisation et une simplicité de fabrication génératrice d'économies.The opposite slopes of the two elementary rails before 25 and rear 26 of the seat element 13 on the one hand, the slope of the guide rail 23 of the back element 14 on the other hand, and the relative positions of the organs 20, 21, 22 sliding on the support structure 1 allow control of the seat angle and create a self-balancing effect of the seat, which remains stable in any of its positions. Any seat locking accessory is thus rendered useless, when the user stops the seat at any point of its race. This gives a real ease of use and simplicity of manufacturing generating savings.

Comme représenté sur la figure 3, les éléments d'assise 13 et de dossier 14 comportent chacun au moins une zone d'inflexion, respectivement 27 et 28, pour maintenir à distance l'organe souple de soutien 2 des éléments 13 et 14. L'inflexion 27 de l'élément d'assise 13 est, de préférence, située au voisinage de son bord de base 18.As shown in FIG. 3, the seat elements 13 and the backrest 14 each comprise at least one inflection zone, respectively 27 and 28, for keeping the flexible support member 2 of the elements 13 and 14 at a distance. Inflection 27 of the seat element 13 is preferably located in the vicinity of its base edge 18.

Les zones 27 et 28 d'inflexion des éléments d'assise 13 et de dossier 14 sont disposées entre leur bord libre 18, 19 et leur bord d'articulation 16, 17.The zones 27 and 28 of inflection of the seat elements 13 and backrest 14 are arranged between their free edge 18, 19 and their hinge edge 16, 17.

L'organe souple de soutien 2 est donc maintenu à distance de la structure porteuse 1, au-dessus de l'élément d'assise 13 et en avant de l'élément de dossier 14, y compris lorsque l'utilisateur est installé dans le siège.The flexible support member 2 is thus kept at a distance from the supporting structure 1, above the seat element 13 and in front of the file element 14, even when the user is installed in the seat. seat.

L'organe souple de soutien 2 constitue en pratique l'organe de manoeuvre, provoquant le glissement des éléments d'assise 13 et de dossier 14 sur le châssis. Les inflexions 27, 28 des éléments 13 et 14 favorisent alors la déformation et la mobilité de l'organe souple 2, tel que son balancement et son fléchissement. De telles déformation et mobilité permettent un accompagnement par l'organe de soutien souple 2 des mouvements du corps de l'utilisateur lors de la manoeuvre de la structure porteuse 1, sur laquelle il est ainsi évité d'avoir à appuyer directement.The flexible support member 2 is in practice the operating member, causing the sliding of the seat elements 13 and backrest 14 on the frame. The inflections 27, 28 of the elements 13 and 14 then promote the deformation and mobility of the flexible member 2, such as its swinging and bending. Such deformation and mobility allow an accompaniment by the flexible support member 2 of the movements of the body of the user during maneuvering the carrier structure 1, which is thus avoided having to directly support.

En revenant aux figures 6 à 10, la sustentation et le mouvement de la structure porteuse 1 sur le châssis sont notamment obtenus par la combinaison entre l'agencement articulé de la structure porteuse 1 de l'organe souple de soutien 2 et l'ensemble de glissement comprenant les trois organes de coulissement 20, 21 et 22 formant les points d'appui que prend la structure porteuse 1 sur le châssis.Returning to FIGS. 6 to 10, the lift and the movement of the supporting structure 1 on the chassis are obtained in particular by the combination between the articulated arrangement of the supporting structure 1 of the flexible support member 2 and the assembly of sliding comprising the three sliding members 20, 21 and 22 forming the bearing points that takes the carrier structure 1 on the frame.

Une légère poussée exercée par l'utilisateur avec ses épaules sur l'organe souple de soutien 2, associée à un mouvement du bassin vers l'avant, provoquent une avancée par glissement de la structure porteuse 1 et son extension. Un arrêt d'une telle poussée et mouvement permet une immobilisation naturelle de la structure porteuse 1 à une position désirée. On remarquera la faculté offerte d'une variation continue des positions de la structure porteuse 1, de sorte que chaque utilisateur, selon sa morphologie et son humeur, peut trouver la position qui lui convient le mieux, de la station verticale en position extrême de repli de la structure porteuse 1 (figure 6) à une station allongée en position extrême d'extension de la structure porteuse 1 (figure 10).A slight thrust exerted by the user with his shoulders on the supple support member 2, associated with a movement of the pelvis forward, cause a forward sliding of the supporting structure 1 and its extension. Stopping such a thrust and movement allows a natural immobilization of the carrier structure 1 at a desired position. It will be noted the faculty offered a continuous variation of the positions of the carrier structure 1, so that each user, according to his morphology and his mood, can find the position that suits him best, from the vertical station in the extreme position of withdrawal from the supporting structure 1 (FIG. 6) to an extended station in the extreme extension position of the supporting structure 1 (FIG. 10).

Lorsque la structure porteuse 1 est en une quelconque position d'extension, l'utilisateur, pour se lever, esquisse un mouvement correspondant, en soulageant le dos vers l'avant. Sans autre geste de sa part, la structure porteuse 1 glisse le long du châssis vers sa position extrême de repli.When the carrier structure 1 is in any extended position, the user, to get up, sketch a corresponding movement, relieving the back forward. Without further action on its part, the carrier structure 1 slides along the chassis to its extreme retracted position.

Un tel résultat est particulièrement obtenu à partir d'une combinaison appropriée entre les positions respectives des organes de coulissement 20, 21, 22 sur la structure porteuse 1, la longueur, la forme et la position des rails de guidage 23, 25, 26 sur le châssis, et la forme des éléments d'assise 13 et de dossier 14 de la structure porteuse 1. D'une telle combinaison découle notamment l'aisance du glissement de la structure porteuse 1 sur le châssis en translation et en basculement en extension avant, et l'automaticité du mouvement de repli de la structure porteuse 1 provoqué par le couple de rappel exercé par le maintien en suspension sur le châssis de la structure porteuse 1, lors de son glissement en position de repli.Such a result is particularly obtained from an appropriate combination between the respective positions of the sliding members 20, 21, 22 on the carrier structure 1, the length, shape and position of the guide rails 23, 25, 26 on the frame, and the shape of the seat elements 13 and backrest 14 of the supporting structure 1. Such a combination follows. in particular the ease of sliding of the carrier structure 1 on the chassis in translation and tilting forward extension, and the automaticity of the folding movement of the carrier structure 1 caused by the restoring torque exerted by the holding in suspension on the frame of the carrier structure 1, when sliding in the retracted position.

La position de l'organe de coulissement avant 21 de l'élément d'assise 13 détermine l'ouverture en extension maximale de la structure porteuse 1, en raison de sa participation à des moyens de mise en butée de ladite structure 1 contre le bout du rail élémentaire avant 25, ainsi que le degré de basculement de l'élément d'assise 13 provoquant le basculement de la structure porteuse 1 et l'effet de bras de levier nécessaire à l'automatisme du glissement vers l'arrière de la structure porteuse 1.The position of the front sliding member 21 of the seat element 13 determines the opening in maximum extension of the supporting structure 1, because of its participation in means of abutment of said structure 1 against the end of the elementary rail before 25, as well as the degree of tilting of the seat element 13 causing the tilting of the supporting structure 1 and the leverage effect necessary for the automation of the sliding towards the rear of the structure carrier 1.

L'inclinaison et la longueur des rails permettent donc un réglage spécifique selon le type de confort recherché. La sensation de confort est différente selon la position du siège, ce qui engendre une richesse d'utilisation.The inclination and length of the rails therefore allow a specific adjustment depending on the type of comfort sought. The feeling of comfort is different depending on the position of the seat, which generates a wealth of use.

L'invention n'est pas limitée aux différents modes de réalisation décrits ci-dessus. En particulier, l'organe souple de soutien 2 est susceptible d'être constitué par d'autres variantes de réalisation analogues, les qualités de structure recherchées étant d'être déformable entre ses extrémités de base 3 et de sommet 4 par l'intermédiaire desquelles il est fixé à la structure porteuse 1, en vue de transmettre aux bords correspondants des éléments d'assise 13 et de dossier 14 les tensions auxquelles l'organe souple de soutien 2 est soumis sous l'effet des appuis que prend l'utilisateur contre ce dernier.The invention is not limited to the various embodiments described above. In particular, the flexible support member 2 may be constituted by other similar embodiments, the desired structural qualities being to be deformable between its base 3 and vertex ends 4 through which it is attached to the supporting structure 1, in order to transmit to the corresponding edges of the seat elements 13 and backrest 14 the tensions to which the flexible support member 2 is subjected under the effect of the support that the user takes against this last.

Les différentes valeurs d'angle et de dimension des rails de guidage 23, 24, 25, 26 sont données à titre indicatif, une variation de dimensions de la structure porteuse 1 entraînant en correspondance des variations des dites valeurs d'angle et de dimension.The various values of angle and dimension of the guide rails 23, 24, 25, 26 are given as an indication, a variation in dimensions of the carrier structure 1 resulting in corresponding variations of said angle and dimension values.

Le siège peut comporter des moyens accessoires de blocage de la structure porteuse 1 dans l'une quelconque de ses positions, pour interdire une modification spontanée de l'angle du dièdre lorsque le siège est inoccupé. Cette modification spontanée est notamment susceptible d'intervenir sous l'effet d'un appui exercé au sommet du siège par une personne inattentive lorsque la structure porteuse 1 est en position repliée.The seat may comprise accessory locking means of the supporting structure 1 in any of its positions, to prohibit spontaneous modification of the angle of the dihedral when the seat is unoccupied. This spontaneous modification is particularly likely to occur under the effect of a support exercised at the top of the seat by an inattentive person when the carrier structure 1 is in the folded position.

Ces moyens de blocage peuvent notamment être constitués par un organe faisant obstacle au glissement de l'élément d'assise 13 sur le châssis, voire par une coopération entre deux organes d'emboîtement coopérant, respectivement supportés par la structure porteuse 1 et le châssis, ladite coopération étant mise en oeuvre à partir d'un geste volontaire de l'utilisateur lorsqu'il quitte le siège.These locking means may in particular be constituted by a member preventing the sliding of the seat member 13 on the frame, or by a cooperation between two cooperating interlocking members, respectively supported by the supporting structure 1 and the frame, said cooperation being implemented from a voluntary gesture of the user when leaving the seat.

Le siège peut comporter également des moyens accessoires d'assistance à la manoeuvre en glissement des éléments d'assise 13 et de dossier 14 le long des rails de guidage 23, 24 qui leur sont affectés. Un vérin électrique peut, par exemple, être interposé entre le châssis sur lequel il est fixé, par exemple par clipsage, et une traverse d'appui ménagée sur l'élément d'assise 13. Ces dispositions sont destinées à assister les personnes physiquement déficientes ou handicapées, sans pour autant déroger à la règle générale de l'invention telle qu'énoncée au regard de la mobilité relative entre les éléments d'assise 13 et de dossier 14 par rapport au châssis.The seat may also comprise accessory means for assisting in the sliding operation of the seat elements 13 and backrest 14 along the guide rails 23, 24 which are assigned to them. An electric jack can, for example, be interposed between the frame on which it is fixed, for example by clipping, and a support beam formed on the seat element 13. These provisions are intended to assist physically disabled persons or disabled, without departing from the general rule of the invention as stated relative to the relative mobility between the seat elements 13 and backrest 14 relative to the frame.

Claims (11)

  1. Relaxation seat comprising a frame for the seat to rest on the ground, a flexible support element (2) for supporting a user, articulation means of the flexible support element (2) with respect to the frame, the articulation means comprising a bearing structure (1) comprising seat and a back-rest support elements, supported by the frame, articulated on one another and comprising sliding means (20, 21, 22) running along guiding paths bounded by corresponding rails (23, 24) fixed onto the frame, relaxation seat characterized in that :
    - the seat and back-rest support elements of the bearing structure (1) are constituted by two frames, respectively forming a seat element (13) and a back-rest element (14), comprising respectively a bottom free edge (18) and a top free edge (19), and articulated by respective articulation edges (16, 17),
    - the flexible support element (2) is fixed to the free edges (18, 19) of the support elements,
    - the seat (13) and back-rest (14) elements each comprise at least one inflection (27, 28), between their free edge (18, 19) and their articulation edge (16, 17), so that the flexible support element (2) is kept at a distance from the bearing structure (1), above the seat element (13) end to the front of the back-rest element (14), including when the user is installed in the seat.
  2. Seat according to claim 1, characterized in that the inflections (27, 28) are located close to the corresponding free edges (18, 19) of the seat (13) and back-rest (14) elements.
  3. Seat according to any one of the preceding claims, characterized in that the rail (23) associated to the back-rest element (14) is fixed onto the frame in a zone corresponding to the middle zone of the back-rest element (14), located between their edges respectively top edge (19) and articulation edge (17) to the seat element (13), so that the guide zone of the back-rest element (14) is located between the bearing zones of the user on the flexible support element (2).
  4. Seat according to claim 3, characterized in that the rail (23) of the back-rest element (14) is substantially straight and inclined with respect to the bearing plane of the frame on the ground by an angle of about 45° to 55°.
  5. Seat according to any one of the preceding claims, characterized in that the guide rail (24) associated to the seat element (13) is a single curved rail along which a couple of distant sliding means (21, 22) run.
  6. Seat according to any one of the claims 1 to 4, characterized in that the guide rail (24) associated to the seat element (13) is composed of two elemental rails (25, 26), one front (25) and one rear (26) with respect to the seat, along which elemental rails (25, 26) run corresponding sliding means (21, 22) of the seat element (13) that are respectively associated thereto, the elemental rails (25, 26) being substantially straight and inclined in opposition with respect to one another.
  7. Seat according to claim 6, characterized in that the rear elemental rail (26) is inclined with respect to the bearing plane of the frame on the ground by an angle A of about 5° to 9°, whereas the front elemental rail (25) is inclined with respect to the bearing plane of the frame on the ground by an angle B of about 2° to 6°.
  8. Seat according to any one of claims 6 and 7, characterized in that the front elemental rail (25) is inflected in the frontward direction by an angle C of about 8° to 12°, with respect to the bearing plane of the frame on the ground, in order to confer to the bearing structure (1) a swinging effect to the rear direction concomitantly with its extension.
  9. Seat according to any one of the preceding claims, characterized in that the flexible support element (2) is any one of a cloth, a flat arrangement of interlaced straps, a flat arrangement of transverse slats (11) borne by lateral straps (12), and of rigid elements (6, 7) in the form of a frame articulated on one another, the internal spaces whereof which they confine are respectively equipped with elastically deformable means (8, 9).
  10. Seat according to any one of the preceding claims, characterized in that the seat comprise accessory means for blocking the bearing structure (1) in any one of its positions to prevent a spontaneous modification of the angle of the dihedron formed by the seat (13) and back-rest (14) elements, when the seat is unoccupied in the folded position.
  11. Seat according to any one of the preceding claims, characterized in that the seat comprise accessory means for sliding operation assistance of the seat (13) and back-rest (14) elements along the rails (23, 24) that are associated thereto.
EP04354023A 2003-06-04 2004-06-04 Relaxation chair comprising a flexible member for supporting a user, said flexible member being carried by both a backrest and a seat which are articulated between themselves and slidably mounted on a frame member Not-in-force EP1483987B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04354023T PL1483987T3 (en) 2003-06-04 2004-06-04 Relaxation chair comprising a flexible member for supporting a user, said flexible member being carried by both a backrest and a seat which are articulated between themselves and slidably mounted on a frame member

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0306738 2003-06-04
FR0306738A FR2855728B1 (en) 2003-06-04 2003-06-04 RELAXATION SEAT COMPRISING A FLEXIBLE SUPPORT MEMBER OF THE USER COMPLETELY FITTED BY A FOLDER AND A SEAT JOINED THEREWITH AND MOUNTED MOUNTED IN A SLIDING ON A CHASSIS
US11/170,058 US20070001504A1 (en) 2003-06-04 2005-06-30 Relaxation chair comprising a flexible support element of the user jointly borne by a back-rest and a seat articulated on one another and mounted movably with sliding on a frame

Publications (2)

Publication Number Publication Date
EP1483987A1 EP1483987A1 (en) 2004-12-08
EP1483987B1 true EP1483987B1 (en) 2006-05-10

Family

ID=43244989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04354023A Not-in-force EP1483987B1 (en) 2003-06-04 2004-06-04 Relaxation chair comprising a flexible member for supporting a user, said flexible member being carried by both a backrest and a seat which are articulated between themselves and slidably mounted on a frame member

Country Status (7)

Country Link
US (1) US20070001504A1 (en)
EP (1) EP1483987B1 (en)
AT (1) ATE325561T1 (en)
DE (1) DE602004000834T2 (en)
ES (1) ES2263121T3 (en)
FR (1) FR2855728B1 (en)
PL (1) PL1483987T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905836A1 (en) * 2006-09-20 2008-03-21 Pierre Rene Mayer Seat, has deformable suspension body including pair of lateral straps supporting part of backrest element and tensioning suspension body for adapting to morphology of user, during positioning of user on seat
EP3530149B1 (en) * 2018-02-22 2022-06-01 Pullmaflex Benelux N.V. Suspension arrangement for a seat and method of producing an elongate suspension member for a suspension arrangement for a seat

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR852467A (en) *
US5318346A (en) * 1991-05-30 1994-06-07 Steelcase Inc. Chair with zero front rise control
DE9300997U1 (en) * 1993-01-26 1994-05-26 Sondergeld Horst Adjustable seat
DE29715343U1 (en) * 1997-08-27 1997-11-27 Unimet Zentrallager Nord Gmbh Seating furniture, in particular garden armchairs
US6062649A (en) * 1998-03-03 2000-05-16 Steelcase Development Inc. Chair back construction
US6543842B2 (en) * 2000-02-03 2003-04-08 Lifetime Products, Inc. Interference fit support bracket for a portable folding chair
DE10152227C2 (en) * 2001-10-20 2003-10-09 Sichelschmidt Stanzwerk seating
US7066553B2 (en) * 2002-05-01 2006-06-27 Fincastle County Chairworks, Llc Furniture structure
US6644743B1 (en) * 2003-03-04 2003-11-11 Chang-Chen Lin Chair chassis

Also Published As

Publication number Publication date
FR2855728B1 (en) 2007-04-06
FR2855728A1 (en) 2004-12-10
ATE325561T1 (en) 2006-06-15
EP1483987A1 (en) 2004-12-08
DE602004000834T2 (en) 2006-11-30
ES2263121T3 (en) 2006-12-01
DE602004000834D1 (en) 2006-06-14
US20070001504A1 (en) 2007-01-04
PL1483987T3 (en) 2006-09-29

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