EP2877057A1 - Hinged seat provided with a synchronous movement between the seat portion and the backrest - Google Patents

Hinged seat provided with a synchronous movement between the seat portion and the backrest

Info

Publication number
EP2877057A1
EP2877057A1 EP13723877.0A EP13723877A EP2877057A1 EP 2877057 A1 EP2877057 A1 EP 2877057A1 EP 13723877 A EP13723877 A EP 13723877A EP 2877057 A1 EP2877057 A1 EP 2877057A1
Authority
EP
European Patent Office
Prior art keywords
seat
arc
backrest
articulated
mechanism according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13723877.0A
Other languages
German (de)
French (fr)
Inventor
Antoine Fritsch
Gérard LAIZE
Thomas VALLETTE
Marie-Cécile PINSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VIA
Original Assignee
VIA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VIA filed Critical VIA
Publication of EP2877057A1 publication Critical patent/EP2877057A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • 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
    • A47C3/0251—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame driven by electric motors
    • 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
    • A47C3/0257—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to the field of articulated seats for applications as varied as domestic seats, office chairs, aircraft seats, relaxation seats, or seats for sick or disabled.
  • the articulation mechanisms allowing the movements of such seats are covered by the invention.
  • the seats and articulated mechanisms according to the invention allow so-called conventional postures but also so-called relaxation postures.
  • the seats can be equipped with simple mechanisms allowing a fixed positioning of the seat and backrest (standard); such seats may be equipped with mechanisms only the tilting of the backrest (toggling axis offset); or else mechanisms allowing a so-called centered tilting where the seat and the backrest can tilt simultaneously; or mechanisms for permanent contact (file?); or synchronous mechanisms (synchronous movement of the backrest and the seat).
  • WO 2007/057237 describes an articulated chair whose movement of the reclining backrest can be linked to that of the footrest. An automatic adjustment of the backrest is obtained here, independent of that of the seat.
  • the invention aims to overcome the disadvantages of the state of the art and in particular to provide a hinge mechanism for a synchronous movement between the seat and the backrest, the transition from one position to another being likely to be obtained by a weak muscular force of the user, without motorization.
  • an articulated seat having a longitudinal axis of symmetry, and comprising a base bearing on a reference surface and a hinge mechanism for a synchronous movement between a seat and a backrest of said seat.
  • the mechanism comprises: a piece of arcuate shape oriented along the longitudinal axis of the seat, mounted between said base and the lower part of the seat and connected by a first end to said backrest by a connection type pivot and a second end to the seat by an articulated connection, the concavity of the arc being oriented towards the lower part of the seat; at least one sliding element on which rests and slides the lower wall of the arc, said at least one sliding element being housed in an intermediate part cooperating with said base.
  • the positioning of the arc is such that its center C is spatially close to the center of gravity of the seat or the seat and the person carried.
  • the articulated connection between the second end of the arc and the seat comprises at least a first part fixed under the seat and provided with a slot for sliding a connecting piece with the second end of the arc.
  • the connecting piece may consist of a roller.
  • said light may be rectilinear or curved.
  • the second end of the arc comprises at least one bracket located in a plane parallel to the longitudinal axis of the seat, one of the sides of the bracket having several attachment points of the at least one connecting roller.
  • the sliding element is of rollers type or pads or balls whose axis of rotation or translation is perpendicular to the longitudinal axis of the seat.
  • said at least one sliding element and / or the lower wall of the arc is coated (s) with a material promoting sliding between the surfaces in contact, such as Teflon®.
  • the hinge mechanism may comprise at least one motorization means.
  • Such motorization is optional because it is primarily intended to facilitate and improve the movement of the mechanism.
  • the invention also relates to an articulated seat comprising a mechanism as referred to above and which comprises means for storing and / or measuring data relating to the person being carried, such as weight sensors, dimensions, visualization or biometric data.
  • An 'intelligent' seat is provided here in that the sensors contribute to improving the movements of the seat by the knowledge and the taking into account of data relating to the person being carried.
  • said data storage and / or measurement means are connected and cooperate with a data processing means such as a computer.
  • said data processing means cooperates with at least one motorization means of the articulation mechanism.
  • said data processing means cooperates with at least one motorization means of the articulation mechanism.
  • the folder comprises a point of attachment of the first end of the arc.
  • the attachment point can be provided at different points in the file. It is thus possible to adapt the seat to the overall morphology of the user; it suffices to change the positioning of the fixing point of said first end of the arc, which changes the position of the center of gravity of the seat.
  • the seat comprises a fixing point of the second end of the arc which, like the backrest, can be located in several places. The same advantages are thus obtained.
  • Figure 2 a longitudinal sectional diagram of a seat in a sitting position, showing the efforts involved;
  • Figure 4 is a rear view of a seat partially showing the hinge mechanism according to the invention.
  • Figure 1 shows a longitudinal section of an articulated seat according to the invention which comprises in particular a specific articulation mechanism between a seat 2 and a backrest 1.
  • this seat further comprises a foot 3 on which rests a vertical rotary axis 4 whose upper part is connected to the lower part of the seat.
  • the seat therefore rests on a reference surface 0 and has a longitudinal axis which is that of the section of FIG.
  • a connection 12 pivot type is provided at two transverse edges respectively joined the backrest 1 and the seat 2.
  • the seat 2 comprises a structural element of holding such as a beam member extending along the length of the seat; the file 1 comprises a beam element of the same type.
  • the hinge system according to the invention between the backrest 1 and the seat 2, comprises in particular a shaped arcuate part 5 here mounted between the vertical axis 4 of the foot 3 and the lower part. from the headquarters.
  • the piece 5 in the form of an arc of a circle, which is a kind of curved beam, is oriented along the longitudinal axis of the seat.
  • the arcuate shaped piece 5 is mounted between a base that is to say a piece resting on the reference surface 0 on which the seat rests, and the lower part of the seat.
  • the 'lower part' is the zone closest to the reference surface 0, on which the foot 3 of the seat rests. More precisely the arcuate shaped piece 5 is connected by a first end 51 to the back 1 and a second end 52 to the seat 2. The concavity of the arcuate piece 5 is turned towards the lower part of the seat.
  • This part 5 is preferably a kind of curved rail whose bottom wall rests and slides on at least one roller, and preferably on a pair of rollers 6 themselves housed in an intermediate part 7 fixed to the upper end of the rotary axis 4 of the foot 3.
  • the roller 6 is a preferred embodiment of a sliding element (or piece) which may be in the form of balls, rollers or pads which may also be externally coated with a material promoting sliding with the lower wall of the piece 5 in the shape of an arc. Teflon ® can be provided for this purpose. If we choose rollers or pads then of course their axis of rotation is perpendicular to the longitudinal axis of the seat. Without departing from the scope of the invention, the bottom wall of the arc-shaped part 5 may be covered with a material such as Teflon®.
  • the first end 51 of the arc 5 is fixed by a pivot type connection to the structural beam member of the backrest 1.
  • a plurality of attachment points 10 such as holes may be provided in this beam 1 to secure the first end 51 of the arc to a preferred and selected location.
  • the first end 51 of the arc 5 may consist of at least one bracket whose one of the vertices is bonded to the backrest beam element 1 by a pivot-type link axis perpendicular to the longitudinal axis of the seat . An axis of rotation thus provides the pivot connection between the bracket or brackets and the beam element of the folder.
  • the second end 52 of the arc 5 is connected by an articulated connection to the seat 2, more precisely under the seat 2.
  • a plurality of attachment points 20 such as holes can be provided in the structural beam. of the seat 2 to place the second end at a chosen location. Any type of suitable attachment can be provided.
  • the second end 52 may consist of at least one bracket located in a plane parallel to the longitudinal axis of the seat. Two brackets can be provided, each arranged laterally on either side of the arc 5 whose transverse profile can be U-shaped, or square, or rectangular.
  • the articulated connection comprises pins or rollers which slide in slots 26 of a first part 25 fixed under the seat 2.
  • the first part 25 may be a kind of stirrup disposed in one of the fixing holes 20 arranged on the along the seat 2.
  • FIG. 1 shows the distribution of forces on the seat. More specifically, we can see the whole of the efforts on the basis as well as the resultant of these FA efforts. The fd efforts on file 1 and their resultant FD is also represented.
  • the center of gravity G of the assembly formed by the seat and the person being carried is towards the front of the seated person, towards the end of his arms. According to the invention this center of gravity is spatially close to the center C of the circle in which the arc of circle forming the part 5 is inscribed.
  • Figure 3 is an illustrative diagram of a first embodiment of the invention. It shows the back 1, the seat 2 of a seat and its foot 3 placed on a reference surface 0 and associated with a rotary axis 4 perpendicular to the reference surface. The upper end of the axis 4 cooperates with the intermediate piece 7 which houses the sliding element 6 on which the central arch 5 rests and slides.
  • Figure 3 shows the articulated end 52 and in particular the curved light 26 in the connecting piece 25.
  • This light has a concavity facing the reference surface 0.
  • the skilled person will choose one form or another; the light in the part 25 allows, in relation to the other elements of the hinge 52, to control the attitude of the seat 2 which remains substantially in the same plane during the entire movement.
  • An angular control of the seat advantageously allows it to remain in a plane making an angle less than 30 ° with the reference surface.
  • a blocking of the seat in a given position may be provided, for example by means of a handle and a handle 1 1 connected to the sliding rollers 6 of the arc-shaped piece 5.
  • Any technically equivalent device, and not precisely detailed, may be part of the mechanism according to the invention.
  • the mechanism according to the invention advantageously includes stops intended to limit the stroke of the arcuate part 5.
  • stops intended to limit the stroke of the arcuate part 5.
  • Such abutments are for example fixed to the bottom wall of the part 5, close to each of its ends. When they come into contact with the piece 7, the movement of the piece 5 is then stopped.
  • the skilled person will choose the position and the most suitable method of attachment.
  • Figure 4 illustrates the rear of the seat and shows the connection between the hinge system and the seat back 1, including the attachment of the arc 5, comparable to a curved rail, with the folder.
  • the hinge mechanism according to the invention allows the center of gravity G of the seat, or that of the seat and the worn user, to coincide with the center C of the circle in which is inscribed the room 5. On thus realizes control and kinematics of the movement of the seat, only by the muscular force of the user, which is a decisive advantage vis-à-vis the prior art.
  • a footrest 8 may be provided, for example articulated by a pivot connection on a distal transverse edge of the seat 2.
  • a headrest 9 can be articulated on a distal transverse edge of the backrest 1.
  • the articulation mechanism may comprise at least one motorization means (not shown) to improve the movement of the seat.
  • such a motorization means cooperates with a data processing means such as a computer that can control it.
  • An engine is here provided in a way not necessary but additional to the operation of the mechanism.
  • such motorization makes it possible to adjust the movement of the mechanism but it does not constitute in any case the main energy necessary for the movement of the mechanism.
  • storage means and / or data measurement may be provided; for example, weight sensors, dimension sensors or biometric sensors can be part of the reclining seat.
  • the sensors determine for example its weight, its size, its image or recognize this person by the biometric data it provides either by its positioning on the seat or by footprints or any other equivalent means.
  • the personal data of the person being worn are recorded, stored and can be used by a data processing system such as a computer.
  • the measuring means may be sensors, for example integrated in a textile.
  • the choice and the position of the sensor are defined by those skilled in the art and are the subject of a particular and decisive technicality; this In particular, it makes it possible to limit costs, make the measurement more reliable and / or make it consistent with the level of comfort desired.
  • the measuring means can be deported.
  • any type of appropriate link is provided to transmit the measured and / or recorded data between the headquarters and the data processing means.
  • the data processing means can control, for example, the motorization means in order to modify and correct the positioning of the seat, which is thus finely adapted to the person being carried.
  • An 'intelligent' seat is therefore implemented according to the invention. Many parameters can be provided, crossed, to allow new and inventive functions of the seat provided with the articulated mechanism according to the invention.
  • Such a mechanism can be mounted on armchair type seats as commented above. It can also be mounted on sofa type seats. The applications are varied, as announced at the head of description.

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

Abstract

The present invention concerns a hinged seat having a longitudinal axis of symmetry and comprising a base (3) bearing on a reference surface (0) and a hinge mechanism allowing a synchronous movement between a seat portion (2) and a backrest (1) of the seat. Specifically, said mechanism comprises: a part (5) in the shape of an arc of a circle oriented according to the longitudinal axis of the seat, mounted between said base and the lower portion of the seat and linked by a first end (51) to said backrest by a pivot link and by a second end (52) to the seat portion by a hinged link, the concavity of the arc being oriented towards the lower portion of the seat; at least one sliding element (6) on which the lower wall of the arc (5) rests and slides, said at least one sliding element being accommodated in an intermediate part (7) that engages with said base. Therefore the positioning of the arc of a circle is such that the centre C of same is spatially close to the centre of gravity G of the seat or of the seat and the supported person.

Description

SIEGE ARTICULE DOTE D'UN MOUVEMENT SYNCHRONE ENTRE L'ASSISE  ARTICULATED SEAT WITH A SYNCHRONOUS MOVEMENT BETWEEN THE SEAT
ET LE DOSSIER  AND THE DOSSIER
DOMAINE TECHNIQUE DE L'INVENTION TECHNICAL FIELD OF THE INVENTION
[0001] L'invention se rapporte au domaine des sièges articulés pour des applications aussi variées que les sièges domestiques, les sièges de bureau, les sièges d'avion, les sièges de relaxation, ou les sièges pour personnes malades ou invalides. Les mécanismes d'articulation permettant les mouvements de tels sièges sont visés par l'invention. [0002] Les sièges et les mécanismes articulés selon l'invention permettent des postures dites conventionnelles mais également des postures dites de relaxation. The invention relates to the field of articulated seats for applications as varied as domestic seats, office chairs, aircraft seats, relaxation seats, or seats for sick or disabled. The articulation mechanisms allowing the movements of such seats are covered by the invention. The seats and articulated mechanisms according to the invention allow so-called conventional postures but also so-called relaxation postures.
ETAT DE LA TECHNIQUE ANTERIEURE STATE OF THE PRIOR ART
[0003] Dans le domaine considéré il existe plusieurs types de mécanismes notamment pour les sièges dits de relaxation. On connaît notamment les mécanismes synchrones où les mouvements du dossier et de l'assise sont synchronisés.  In the field in question there are several types of mechanisms, in particular for so-called relaxation seats. Synchronous mechanisms are particularly known where the movements of the backrest and the seat are synchronized.
[0004] On connaît aussi des mécanismes de basculement permettant d'atteindre une posture de confort dite ' zéro gravité' où la personne est quasi allongée, dans une position proche de celle des astronautes lors du décollage. Un système électrique permet d'actionner de tels fauteuils qui comportent une assise et un dossier fixes l'un par rapport à l'autre, et qui sont actionnables ensemble par rotation autour d'un axe perpendiculaire à l'axe longitudinal du fauteuil. Also known tilting mechanisms to achieve a so-called comfort posture 'zero gravity' where the person is almost elongated, in a position close to that of astronauts during takeoff. An electrical system makes it possible to actuate such chairs which comprise a seat and a backrest fixed relative to one another, and which can be actuated together by rotation around an axis perpendicular to the longitudinal axis of the chair.
[0005] On connaît encore des fauteuils où les mécanismes permettant les mouvements relatifs, notamment de l'assise et du dossier, sont totalement assistés et motorisés. We still know armchairs where the mechanisms for relative movements, including the seat and backrest, are fully assisted and motorized.
[0006] Concernant les sièges (ou fauteuils) adaptés pour des postures conventionnelles, de type sièges de bureau, ceux-ci peuvent être équipés de mécanismes simples permettant un positionnement fixe de l'assise et du dossier ( standard) ; de tels sièges peuvent être équipés de mécanismes permettant uniquement le basculement du dossier ( basculant axe décalé) ; ou bien de mécanismes autorisant un basculement dit centré où l'assise et le dossier peuvent basculer simultanément ; ou encore de mécanismes permettant un contact permanent ( du dossier ?) ; ou de mécanismes synchrones ( mouvement synchrone du dossier et de l'assise). Regarding the seats (or chairs) suitable for conventional postures, office-type seats, they can be equipped with simple mechanisms allowing a fixed positioning of the seat and backrest (standard); such seats may be equipped with mechanisms only the tilting of the backrest (toggling axis offset); or else mechanisms allowing a so-called centered tilting where the seat and the backrest can tilt simultaneously; or mechanisms for permanent contact (file?); or synchronous mechanisms (synchronous movement of the backrest and the seat).
[0007] Le document WO 2007/057237 décrit un fauteuil articulé dont le mouvement du dossier inclinable peut être lié à celui du repose-pieds. Un réglage automatique du dossier est ici obtenu, indépendant de celui de l'assise. WO 2007/057237 describes an articulated chair whose movement of the reclining backrest can be linked to that of the footrest. An automatic adjustment of the backrest is obtained here, independent of that of the seat.
[0008] Un fauteuil de conception assez proche mais cependant amélioré est décrit dans le document WO 2007/031464 où une barre de connexion est prévue entre le bas du dossier et le repose-pieds afin que l'inclinaison du dossier vers l'arrière, entraine le déploiement du repose-pieds. On réalise donc ici un mouvement synchrone de ces deux éléments constitutifs du fauteuil. A rather close but improved design of the chair is described in WO 2007/031464 where a connecting bar is provided between the bottom of the backrest and the footrest so that the inclination of the backrest, causes the deployment of the footrest. Here we realize a synchronous movement of these two components of the chair.
[0009] On connaît également par le document WO 97/38608 un fauteuil pivotant comportant deux flancs latéraux fixes entre lesquels un élément porteur rigide est suspendu. Latéralement intercalés entre les deux flancs latéraux, des systèmes articulés permettent la liaison avec l'élément porteur. Les systèmes articulés divulgués dans ce document sont conçus de telle sorte que le centre de gravité de la personne portée et de l'élément porteur reste à un même niveau quelle que soit la position de l'élément porteur. Ceci permet à la personne portée de passer sans effort important d'une inclinaison à une autre. It is also known from WO 97/38608 a swivel chair having two fixed lateral flanks between which a rigid carrier member is suspended. Laterally interposed between the two lateral flanks, articulated systems allow the connection with the carrier element. The articulated systems disclosed in this document are designed so that the center of gravity of the person carried and the carrier element remains at the same level regardless of the position of the carrier element. This allows the wearer to pass without significant effort from one inclination to another.
[0010] On remarque que la plupart des sièges connus sont adaptés à un certain type de postures et n'offrent pas une vaste gamme de postures. De plus ils ne permettent pas de passer de façon simple c'est-à-dire notamment sans motorisation importante, d'une posture ou d'une inclinaison à une autre. It is noted that most of the known seats are adapted to a certain type of postures and do not offer a wide range of postures. Moreover they do not allow to pass in a simple way that is to say in particular without significant motorization, from one posture or inclination to another.
EXPOSE DE L'INVENTION SUMMARY OF THE INVENTION
[0011] L'invention vise à remédier aux inconvénients de l'état de la technique et notamment à proposer un mécanisme d'articulation permettant un mouvement synchrone entre l'assise et le dossier, le passage d'une position à une autre étant susceptible d'être obtenu par une faible force musculaire de l'utilisateur, sans motorisation. The invention aims to overcome the disadvantages of the state of the art and in particular to provide a hinge mechanism for a synchronous movement between the seat and the backrest, the transition from one position to another being likely to be obtained by a weak muscular force of the user, without motorization.
[0012] Pour ce faire est proposé un siège articulé présentant un axe longitudinal de symétrie, et comprenant un piètement en appui sur une surface de référence et un mécanisme d'articulation permettant un mouvement synchrone entre une assise et un dossier dudit siège. To do this is proposed an articulated seat having a longitudinal axis of symmetry, and comprising a base bearing on a reference surface and a hinge mechanism for a synchronous movement between a seat and a backrest of said seat.
[0013] Selon un aspect de l'invention, le mécanisme comprend : une pièce en forme d'arc de cercle orientée selon l'axe longitudinal du siège, montée entre ledit piètement et la partie inférieure du siège et reliée par une première extrémité audit dossier par une liaison de type pivot et par une deuxième extrémité à l'assise par une liaison articulée, la concavité de l'arc étant orientée vers la partie inférieure du siège ; au moins un élément de coulissement sur lequel repose et coulisse la paroi inférieure de l'arc, ledit au moins un élément de coulissement étant logé dans une pièce intermédiaire coopérant avec ledit piètement. Ainsi le positionnement de l'arc de cercle est tel que son centre C est spatialement proche du centre de gravité du siège ou du siège et de la personne portée. According to one aspect of the invention, the mechanism comprises: a piece of arcuate shape oriented along the longitudinal axis of the seat, mounted between said base and the lower part of the seat and connected by a first end to said backrest by a connection type pivot and a second end to the seat by an articulated connection, the concavity of the arc being oriented towards the lower part of the seat; at least one sliding element on which rests and slides the lower wall of the arc, said at least one sliding element being housed in an intermediate part cooperating with said base. Thus the positioning of the arc is such that its center C is spatially close to the center of gravity of the seat or the seat and the person carried.
[0014] De façon plus précise, la liaison articulée entre la deuxième extrémité de l'arc et l'assise comprend au moins une première pièce fixée sous l'assise et munie d'une lumière destinée au coulissement d'une pièce de liaison avec la deuxième extrémité de l'arc. A titre illustratif la pièce de liaison peut être constituée d'un galet. More specifically, the articulated connection between the second end of the arc and the seat comprises at least a first part fixed under the seat and provided with a slot for sliding a connecting piece with the second end of the arc. As an illustration, the connecting piece may consist of a roller.
[0015] Selon le choix de l'homme de métier, ladite lumière peut être rectiligne ou courbe. According to the choice of the skilled person, said light may be rectilinear or curved.
[0016] De façon plus précise, la deuxième extrémité de l'arc comprend au moins une équerre située dans un plan parallèle à l'axe longitudinal du siège, l'un des côtés de l'équerre présentant plusieurs points de fixation de l'un au moins des galets de liaison. [0017] En outre l'élément de coulissement est de type rouleaux ou patins ou billes dont l'axe de rotation ou de translation est perpendiculaire à l'axe longitudinal du siège. More specifically, the second end of the arc comprises at least one bracket located in a plane parallel to the longitudinal axis of the seat, one of the sides of the bracket having several attachment points of the at least one connecting roller. In addition, the sliding element is of rollers type or pads or balls whose axis of rotation or translation is perpendicular to the longitudinal axis of the seat.
[0018] Avantageusement, ledit au moins un élément de coulissement et/ou la paroi inférieure de l'arc est revêtu(s) d'une matière favorisant le glissement entre les surfaces en contact, telle que du Téflon®. Advantageously, said at least one sliding element and / or the lower wall of the arc is coated (s) with a material promoting sliding between the surfaces in contact, such as Teflon®.
[0019] Sans sortir du cadre de l'invention, le mécanisme d'articulation peut comprendre au moins un moyen de motorisation. Une telle motorisation est facultative car elle est avant tout destinée à faciliter et à améliorer le mouvement du mécanisme. Without departing from the scope of the invention, the hinge mechanism may comprise at least one motorization means. Such motorization is optional because it is primarily intended to facilitate and improve the movement of the mechanism.
[0020] L'invention porte par ailleurs sur un siège articulé comprenant un mécanisme tel que visé ci-dessus et qui comprend des moyens de mémorisation et/ou de mesure de données relatives à la personne portée, tels que des capteurs de poids, de dimensions, de visualisation ou de données biométriques. Un siège 'intelligent' est ici prévu en ce sens que les capteurs contribuent à améliorer les mouvements du siège par la connaissance et la prise en compte de données relatives à la personne portée. The invention also relates to an articulated seat comprising a mechanism as referred to above and which comprises means for storing and / or measuring data relating to the person being carried, such as weight sensors, dimensions, visualization or biometric data. An 'intelligent' seat is provided here in that the sensors contribute to improving the movements of the seat by the knowledge and the taking into account of data relating to the person being carried.
[0021] De façon intéressante, lesdits moyens de mémorisation de données et/ou de mesure (tels que des capteurs) sont reliés et coopèrent avec un moyen de traitement de données tel qu'un ordinateur. Interestingly, said data storage and / or measurement means (such as sensors) are connected and cooperate with a data processing means such as a computer.
[0022] En outre ledit moyen de traitement de données coopère avec au moins un moyen de motorisation du mécanisme d'articulation. Ainsi le mouvement du siège généré par le mécanisme peut être amélioré en fonction de données relatives à la personne portée qui sont mémorisées puis traitées par le moyen de traitement de données susceptible de commander une motorisation du siège. In addition, said data processing means cooperates with at least one motorization means of the articulation mechanism. Thus the movement of the seat generated by the mechanism can be improved according to the data relating to the person worn which are stored and then processed by the data processing means may control a motorization of the seat.
[0023] Avantageusement, le dossier comprend un point de fixation de la première extrémité de l'arc. Le point de fixation peut être prévu à différents endroits du dossier. Il est ainsi possible d'adapter le siège à la morphologie globale de l'utilisateur ; il suffit en effet de changer le positionnement du point de fixation de ladite première extrémité de l'arc, ce qui modifie la position du centre de gravité du siège. Advantageously, the folder comprises a point of attachment of the first end of the arc. The attachment point can be provided at different points in the file. It is thus possible to adapt the seat to the overall morphology of the user; it suffices to change the positioning of the fixing point of said first end of the arc, which changes the position of the center of gravity of the seat.
[0024] Par ailleurs, l'assise comprend un point de fixation de la deuxième extrémité de l'arc qui, tout comme celui du dossier, peut se situer en plusieurs endroits. Les mêmes avantages sont donc obtenus. Furthermore, the seat comprises a fixing point of the second end of the arc which, like the backrest, can be located in several places. The same advantages are thus obtained.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
[0025] [001 ]D'autres caractéristiques, détails et avantages de l'invention ressortiront à la lecture de la description qui suit, en référence aux figures annexées, qui illustrent : - la figure 1 , une vue en coupe longitudinale d'un mécanisme selon un premier mode de réalisation de l'invention, montrant une première posture dite à gravité zéro ;  Other features, details and advantages of the invention will become apparent on reading the description which follows, with reference to the accompanying figures, which illustrate: - Figure 1, a longitudinal sectional view of a mechanism according to a first embodiment of the invention, showing a first posture called zero gravity;
la figure 2 un schéma en coupe longitudinale d'un siège en position d'assise, montrant les efforts mis en jeu ;  Figure 2 a longitudinal sectional diagram of a seat in a sitting position, showing the efforts involved;
- la figure 3, un schéma d'un mode de réalisation de l'invention du mécanisme d'articulation selon l'invention ; et  - Figure 3, a diagram of an embodiment of the invention of the hinge mechanism according to the invention; and
la figure 4, une vue de l'arrière d'un siège montrant partiellement le mécanisme d'articulation selon l'invention.  Figure 4 is a rear view of a seat partially showing the hinge mechanism according to the invention.
[0026] Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l'ensemble des figures. For clarity, identical or similar elements are identified by identical reference signs throughout the figures.
DESCRIPTION DETAILLEE D'UN MODE DE REALISATION DETAILED DESCRIPTION OF AN EMBODIMENT
[0027] La figure 1 montre par une coupe longitudinale un siège articulé selon l'invention qui comprend notamment un mécanisme d'articulation spécifique entre une assise 2 et un dossier 1 . De façon connue ce siège comprend en outre un pied 3 sur lequel repose un axe vertical rotatif 4 dont la partie supérieure est reliée à la partie inférieure du siège. Le siège repose donc sur une surface de référence 0 et il présente un axe longitudinal qui est celui de la coupe de la figure 1 . [0028] Entre l'assise 2 et le dossier 1 du siège, une liaison 12 de type pivot est prévu au niveau de deux bords transversaux jointifs respectivement du dossier 1 et de l'assise 2. L'assise 2 comprend un élément structurel de maintien tel qu'un élément de poutre s'étendant selon la longueur du siège ; le dossier 1 comprend un élément de poutre de même type. Figure 1 shows a longitudinal section of an articulated seat according to the invention which comprises in particular a specific articulation mechanism between a seat 2 and a backrest 1. In known manner this seat further comprises a foot 3 on which rests a vertical rotary axis 4 whose upper part is connected to the lower part of the seat. The seat therefore rests on a reference surface 0 and has a longitudinal axis which is that of the section of FIG. Between the seat 2 and the backrest 1 of the seat, a connection 12 pivot type is provided at two transverse edges respectively joined the backrest 1 and the seat 2. The seat 2 comprises a structural element of holding such as a beam member extending along the length of the seat; the file 1 comprises a beam element of the same type.
[0029] Le système d'articulation selon l'invention, entre le dossier 1 et l'assise 2, comprend notamment une pièce en forme d'arc de cercle 5 ici montée entre l'axe vertical 4 du pied 3 et la partie inférieure du siège. La pièce 5 en forme d'arc de cercle, qui est une sorte de poutre courbée, est orientée selon l'axe longitudinal du siège. La pièce en forme d'arc de cercle 5 est montée entre un piètement c'est-à-dire une pièce en appui sur la surface de référence 0 sur laquelle repose le siège, et la partie inférieure du siège. The hinge system according to the invention, between the backrest 1 and the seat 2, comprises in particular a shaped arcuate part 5 here mounted between the vertical axis 4 of the foot 3 and the lower part. from the headquarters. The piece 5 in the form of an arc of a circle, which is a kind of curved beam, is oriented along the longitudinal axis of the seat. The arcuate shaped piece 5 is mounted between a base that is to say a piece resting on the reference surface 0 on which the seat rests, and the lower part of the seat.
[0030] On appelle 'partie inférieure' la zone la plus proche de la surface de référence 0, sur laquelle repose le pied 3 du siège. [0031] Plus précisément la pièce en forme d'arc de cercle 5 est reliée par une première extrémité 51 au dossier 1 et par une deuxième extrémité 52 à l'assise 2. La concavité de la pièce en arc de cercle 5 est tournée vers la partie inférieure du siège. Cette pièce 5 est préférentiellement une sorte de rail courbé dont la paroi inférieure repose et coulisse sur au moins un galet, et de préférence sur une paire de galets 6 eux-mêmes logés dans une pièce intermédiaire 7 fixée à l'extrémité supérieure de l'axe rotatif 4 du pied 3. The 'lower part' is the zone closest to the reference surface 0, on which the foot 3 of the seat rests. More precisely the arcuate shaped piece 5 is connected by a first end 51 to the back 1 and a second end 52 to the seat 2. The concavity of the arcuate piece 5 is turned towards the lower part of the seat. This part 5 is preferably a kind of curved rail whose bottom wall rests and slides on at least one roller, and preferably on a pair of rollers 6 themselves housed in an intermediate part 7 fixed to the upper end of the rotary axis 4 of the foot 3.
[0032] Le galet 6 est un exemple préféré de réalisation d'un élément (ou pièce) de coulissement qui peut se présenter sous la forme de billes, rouleaux ou patins qui par ailleurs peuvent être extérieurement revêtus d'une matière favorisant le glissement avec la paroi inférieure de la pièce 5 en forme d'arc de cercle. Du Téflon ® peut être prévu à cet effet. Si l'on choisit des rouleaux ou des patins alors bien entendu leur axe de rotation est perpendiculaire à l'axe longitudinal du siège. Sans sortir du cadre de l'invention la paroi inférieure de la pièce en forme d'arc 5 peut être recouverte d'une matière telle que du Téflon ®. [0033] La première extrémité 51 de l'arc 5 est fixée par une liaison de type pivot sur l'élément de poutre structurel du dossier 1 . Une pluralité de points de fixation 10 tels que des trous peuvent être prévus dans cette poutre 1 afin de fixer la première extrémité 51 de l'arc à un endroit privilégié et choisi. La première extrémité 51 de l'arc 5 peut consister en au moins une équerre dont l'un des sommets est lié sur l'élément de poutre du dossier 1 par une liaison de type pivot d'axe perpendiculaire à l'axe longitudinal du siège. Un axe de rotation assure ainsi la liaison pivot entre la ou les équerres et l'élément de poutre du dossier. The roller 6 is a preferred embodiment of a sliding element (or piece) which may be in the form of balls, rollers or pads which may also be externally coated with a material promoting sliding with the lower wall of the piece 5 in the shape of an arc. Teflon ® can be provided for this purpose. If we choose rollers or pads then of course their axis of rotation is perpendicular to the longitudinal axis of the seat. Without departing from the scope of the invention, the bottom wall of the arc-shaped part 5 may be covered with a material such as Teflon®. The first end 51 of the arc 5 is fixed by a pivot type connection to the structural beam member of the backrest 1. A plurality of attachment points 10 such as holes may be provided in this beam 1 to secure the first end 51 of the arc to a preferred and selected location. The first end 51 of the arc 5 may consist of at least one bracket whose one of the vertices is bonded to the backrest beam element 1 by a pivot-type link axis perpendicular to the longitudinal axis of the seat . An axis of rotation thus provides the pivot connection between the bracket or brackets and the beam element of the folder.
[0034] La deuxième extrémité 52 de l'arc 5 est liée par une liaison articulée à l'assise 2, plus précisément sous l'assise 2. Une pluralité de points de fixation 20 tels que des trous peuvent être prévus dans la poutre structurelle de l'assise 2 afin de placer la deuxième extrémité à un endroit choisi. Tout type de fixation adapté peut être prévu. La deuxième extrémité 52 peut être constituée d'au moins une équerre située dans un plan parallèle à l'axe longitudinal du siège. Deux équerres peuvent être prévues, chacune disposée latéralement de part et d'autre de l'arc 5 dont le profil transversal peut être en forme de U, ou carré, ou rectangulaire. La liaison articulée comprend des pions ou galets qui coulissent dans des lumières 26 d'une première pièce 25 fixée sous l'assise 2. La première pièce 25 peut être une sorte d'étrier disposé dans l'un des trous de fixation 20 disposés le long de l'assise 2. The second end 52 of the arc 5 is connected by an articulated connection to the seat 2, more precisely under the seat 2. A plurality of attachment points 20 such as holes can be provided in the structural beam. of the seat 2 to place the second end at a chosen location. Any type of suitable attachment can be provided. The second end 52 may consist of at least one bracket located in a plane parallel to the longitudinal axis of the seat. Two brackets can be provided, each arranged laterally on either side of the arc 5 whose transverse profile can be U-shaped, or square, or rectangular. The articulated connection comprises pins or rollers which slide in slots 26 of a first part 25 fixed under the seat 2. The first part 25 may be a kind of stirrup disposed in one of the fixing holes 20 arranged on the along the seat 2.
[0035] Ces dispositions structurelles permettent par un mouvement synchrone du dossier 1 et de l'assise 2, de contrôler l'assiette de l'assise pendant le mouvement du siège. Le rail ou arc central 5 permet une libre rotation de l'assise 2 et du dossier 1 . [0036] La figure 2 montre la répartition des forces sur le siège. Plus spécifiquement on voit l'ensemble des efforts fa sur l'assise ainsi que la résultante de ces efforts FA. Les efforts fd sur le dossier 1 et leur résultante FD est également représentée. Ainsi le centre de gravité G de l'ensemble formé par le siège et la personne portée se trouve vers l'avant de la personne assise, vers l'extrémité de ses bras. Conformément à l'invention ce centre de gravité est spatialement proche du centre C du cercle dans lequel est inscrit l'arc de cercle formant la pièce 5. These structural arrangements allow by a synchronous movement of the backrest 1 and the seat 2, to control the base of the seat during the movement of the seat. The rail or central arc 5 allows free rotation of the seat 2 and the backrest 1. [0036] Figure 2 shows the distribution of forces on the seat. More specifically, we can see the whole of the efforts on the basis as well as the resultant of these FA efforts. The fd efforts on file 1 and their resultant FD is also represented. Thus, the center of gravity G of the assembly formed by the seat and the person being carried is towards the front of the seated person, towards the end of his arms. According to the invention this center of gravity is spatially close to the center C of the circle in which the arc of circle forming the part 5 is inscribed.
[0037] La figure 3 est un schéma illustratif d'un premier mode de réalisation de l'invention. On y voit le dossier 1 , l'assise 2 d'un siège ainsi que son pied 3 posé sur une surface de référence 0 et associé avec un axe rotatif 4 perpendiculaire à la surface de référence. L'extrémité supérieure de l'axe 4 coopère avec la pièce intermédiaire 7 qui loge l'élément de coulissement 6 sur lequel repose et coulisse l'arc central 5. Figure 3 is an illustrative diagram of a first embodiment of the invention. It shows the back 1, the seat 2 of a seat and its foot 3 placed on a reference surface 0 and associated with a rotary axis 4 perpendicular to the reference surface. The upper end of the axis 4 cooperates with the intermediate piece 7 which houses the sliding element 6 on which the central arch 5 rests and slides.
[0038] La figure 3 montre l'extrémité articulée 52 et notamment la lumière courbe 26 dans la pièce de liaison 25. Cette lumière présente une concavité tournée vers la surface de référence 0. L'homme de métier choisira une forme ou une autre ; la lumière dans la pièce 25 permet, en relation avec les autres éléments de l'articulation 52, de contrôler l'assiette de l'assise 2 qui reste sensiblement dans un même plan pendant tout le mouvement. Un contrôle angulaire de l'assise lui permet avantageusement de rester dans un plan faisant un angle inférieur à 30° avec la surface de référence. Figure 3 shows the articulated end 52 and in particular the curved light 26 in the connecting piece 25. This light has a concavity facing the reference surface 0. The skilled person will choose one form or another; the light in the part 25 allows, in relation to the other elements of the hinge 52, to control the attitude of the seat 2 which remains substantially in the same plane during the entire movement. An angular control of the seat advantageously allows it to remain in a plane making an angle less than 30 ° with the reference surface.
[0039] Par ailleurs un blocage du siège dans une position donnée peut être prévu, par exemple à l'aide d'une poignée et d'un manche 1 1 relié aux galets 6 de coulissement de la pièce en forme d'arc 5. Tout dispositif techniquement équivalent, et non précisément détaillé, peut faire partie du mécanisme selon l'invention. Furthermore a blocking of the seat in a given position may be provided, for example by means of a handle and a handle 1 1 connected to the sliding rollers 6 of the arc-shaped piece 5. Any technically equivalent device, and not precisely detailed, may be part of the mechanism according to the invention.
[0040] En outre le mécanisme selon l'invention inclut avantageusement des butées destinées à limiter la course de la pièce en arc 5. De telles butées (non représentées) sont par exemple fixées sur la paroi inférieure de la pièce 5, à proximité de chacune de ses extrémités. Lorsqu'elles viennent en contact avec la pièce 7, le mouvement de la pièce 5 est alors stoppé. L'homme de métier choisira la position et le mode de fixation le mieux adapté. In addition the mechanism according to the invention advantageously includes stops intended to limit the stroke of the arcuate part 5. Such abutments (not shown) are for example fixed to the bottom wall of the part 5, close to each of its ends. When they come into contact with the piece 7, the movement of the piece 5 is then stopped. The skilled person will choose the position and the most suitable method of attachment.
[0041] La figure 4 illustre l'arrière du siège et permet de voir la liaison entre le système d'articulation et le dossier 1 du siège, notamment la fixation de l'arc 5, comparable à un rail courbé, avec le dossier. [0042] Le mécanisme d'articulation selon l'invention permet au centre de gravité G du siège, ou à celui du siège et de l'utilisateur porté, de coïncider avec le centre C du cercle dans lequel est inscrit la pièce 5. On réalise ainsi un contrôle et une cinématique du mouvement du siège, uniquement par la force musculaire de l'utilisateur, ce qui est un avantage décisif vis-à-vis de l'art antérieur. Figure 4 illustrates the rear of the seat and shows the connection between the hinge system and the seat back 1, including the attachment of the arc 5, comparable to a curved rail, with the folder. The hinge mechanism according to the invention allows the center of gravity G of the seat, or that of the seat and the worn user, to coincide with the center C of the circle in which is inscribed the room 5. On thus realizes control and kinematics of the movement of the seat, only by the muscular force of the user, which is a decisive advantage vis-à-vis the prior art.
[0043] Bien entendu et afin d'améliorer le confort de l'utilisateur, un repose-pied 8 peut être prévu, par exemple articulé par une liaison pivot sur un bord transversal distal de l'assise 2. De même un repose-tête 9 peut être monté articulé sur un bord transversal distal du dossier 1 . [0044] En outre le mécanisme d'articulation peut comprendre au moins un moyen de motorisation (non représenté) afin d'améliorer le mouvement du siège. Of course and to improve the comfort of the user, a footrest 8 may be provided, for example articulated by a pivot connection on a distal transverse edge of the seat 2. Similarly a headrest 9 can be articulated on a distal transverse edge of the backrest 1. In addition the articulation mechanism may comprise at least one motorization means (not shown) to improve the movement of the seat.
[0045] Selon un développement intéressant, un tel moyen de motorisation coopère avec un moyen de traitement de données tel qu'un ordinateur qui peut le contrôler. Une motorisation est ici prévue de manière non pas nécessaire mais additionnelle au fonctionnement du mécanisme. En d'autres termes une telle motorisation permet d'ajuster le mouvement du mécanisme mais elle ne constitue en aucun cas l'énergie principale nécessaire au mouvement du mécanisme. According to an interesting development, such a motorization means cooperates with a data processing means such as a computer that can control it. An engine is here provided in a way not necessary but additional to the operation of the mechanism. In other words, such motorization makes it possible to adjust the movement of the mechanism but it does not constitute in any case the main energy necessary for the movement of the mechanism.
[0046] Par ailleurs des moyens de mémorisation et/ou de mesure de données peuvent être prévus ; par exemple des capteurs de poids, de dimension ou encore des capteurs biométriques peuvent faire partie du siège inclinable. Ainsi lorsqu'une personne est en place sur le siège, les capteurs déterminent par exemple son poids, sa taille, son image ou encore reconnaissent cette personne par les données biométriques qu'elle fournit soit par son positionnement sur le siège soit par des empreintes ou tout autre moyen équivalent. Ainsi grâce aux moyens de mémorisation et/ou de mesure, des données personnelles de la personne portée sont enregistrées, mémorisées et peuvent être exploitées par un système de traitement de données tel qu'un ordinateur. Furthermore, storage means and / or data measurement may be provided; for example, weight sensors, dimension sensors or biometric sensors can be part of the reclining seat. Thus when a person is in place on the seat, the sensors determine for example its weight, its size, its image or recognize this person by the biometric data it provides either by its positioning on the seat or by footprints or any other equivalent means. Thus, thanks to the storage and / or measurement means, the personal data of the person being worn are recorded, stored and can be used by a data processing system such as a computer.
[0047] A titre illustratif les moyens de mesure peuvent être des capteurs par exemple intégrés dans un textile. Le choix, la position du capteur sont définis par l'homme de métier et font l'objet d'une technicité particulière et déterminante ; ceci permet notamment de limiter les coûts, de fiabiliser la mesure et /ou de la rendre cohérente avec le niveau de confort souhaité. Le moyen de mesure peut être déporté. By way of illustration, the measuring means may be sensors, for example integrated in a textile. The choice and the position of the sensor are defined by those skilled in the art and are the subject of a particular and decisive technicality; this In particular, it makes it possible to limit costs, make the measurement more reliable and / or make it consistent with the level of comfort desired. The measuring means can be deported.
[0048] Bien entendu tout type de liaison appropriée est prévu afin de transmettre les données mesurées et/ou enregistrées, entre le siège et le moyen de traitement des données. De façon interactive le moyen de traitement de données peut commander par exemple les moyens de motorisation afin de modifier, de corriger le positionnement du siège qui est ainsi finement adapté à la personne portée. Un siège ' intelligent ' est donc mis en œuvre selon l'invention. De nombreux paramètres peuvent être prévus, croisés, afin de permettre des fonctionnalités nouvelles et inventives du siège muni du mécanisme articulé selon l'invention. Of course, any type of appropriate link is provided to transmit the measured and / or recorded data between the headquarters and the data processing means. Interactively, the data processing means can control, for example, the motorization means in order to modify and correct the positioning of the seat, which is thus finely adapted to the person being carried. An 'intelligent' seat is therefore implemented according to the invention. Many parameters can be provided, crossed, to allow new and inventive functions of the seat provided with the articulated mechanism according to the invention.
[0049] Un tel mécanisme peut être monté sur des sièges de type fauteuil comme commenté ci-dessus. Il peut en outre être monté sur des sièges de type canapé. Les applications sont variées, comme annoncé en tête de description. Such a mechanism can be mounted on armchair type seats as commented above. It can also be mounted on sofa type seats. The applications are varied, as announced at the head of description.

Claims

REVENDICATIONS
Siège articulé présentant un axe longitudinal de symétrie et comprenant un piètement (3) en appui sur une surface de référence (0) et un mécanisme d'articulation permettant un mouvement synchrone entre une assise (2) et un dossier (1 ) dudit siège caractérisé en ce que ledit mécanisme comprend : une pièce (5) en forme d'arc de cercle orientée selon l'axe longitudinal du siège, montée entre ledit piètement (3) et la partie inférieure du siège et reliée par une première extrémité (51 ) audit dossier (1 ) par une liaison de type pivot et par une deuxième extrémité (52) à l'assise (2) par une liaison articulée, la concavité de l'arc (5) étant orientée vers la partie inférieure du siège ; au moins un élément de coulissement (6) sur lequel repose et coulisse la paroi inférieure de l'arc(5), ledit au moins un élément de coulissement étant logé dans une pièce intermédiaire (7) coopérant avec ledit piètement ; et en ce que le positionnement de l'arc de cercle (5) est tel que son centre C est spatialement proche du centre de gravité G du siège ou du siège et de la personne portée. Articulated seat having a longitudinal axis of symmetry and comprising a base (3) resting on a reference surface (0) and a hinge mechanism allowing a synchronous movement between a seat (2) and a backrest (1) of said seat characterized in that said mechanism comprises: a piece (5) in the form of an arc of a circle oriented along the longitudinal axis of the seat, mounted between said base (3) and the lower part of the seat and connected by a first end (51) said backrest (1) is connected by a pivot-type connection and a second end (52) to the seat (2) by an articulated connection, the concavity of the bow (5) being directed towards the lower part of the seat; at least one sliding element (6) on which rests and slides the lower wall of the arc (5), said at least one sliding element being housed in an intermediate part (7) cooperating with said base; and in that the positioning of the arc (5) is such that its center C is spatially close to the center of gravity G of the seat or seat and the person being carried.
Mécanisme d'articulation selon la revendication 1 caractérisé en ce que la liaison articulée entre la deuxième extrémité (52) de l'arc et l'assise (2) comprend au moins une première pièce(25) fixée sous l'assise et munie d'une lumière (26) destinée au coulissement d'une pièce de liaison avec la deuxième extrémité (52) de l'arc (5).  Articulation mechanism according to claim 1 characterized in that the articulated connection between the second end (52) of the arc and the seat (2) comprises at least a first part (25) fixed under the seat and provided with a slot (26) for sliding a connecting piece with the second end (52) of the bow (5).
Mécanisme d'articulation selon la revendication 2 caractérisé en ce que ladite lumière (26) est rectiligne ou courbe.  Articulation mechanism according to claim 2 characterized in that said light (26) is rectilinear or curved.
Mécanisme d'articulation selon la revendication 2 ou la revendication 3 caractérisé en ce que la deuxième extrémité (52) de l'arc comprend au moins une équerre située dans un plan parallèle à l'axe longitudinal du siège, l'un des côtés de l'équerre présentant plusieurs points de fixation (20) de l'un au moins des galets de liaison.  Articulation mechanism according to claim 2 or claim 3 characterized in that the second end (52) of the arc comprises at least one bracket located in a plane parallel to the longitudinal axis of the seat, one of the sides of the bracket having several attachment points (20) of at least one connecting roller.
Mécanisme d'articulation selon l'une quelconque des revendications précédentes caractérisé en ce que l'élément de coulissement (6) est de type rouleaux ou galets ou billes dont l'axe de rotation ou de translation est perpendiculaire à l'axe longitudinal du siège. Articulation mechanism according to any one of the preceding claims, characterized in that the sliding element (6) is of the type rollers or rollers or balls whose axis of rotation or translation is perpendicular to the longitudinal axis of the seat.
Mécanisme d'articulation selon l'une quelconque des revendications précédentes caractérisé en ce que ledit au moins un élément de coulissement (6) et/ou la paroi inférieure de l'arc (5) est revêtu(s) d'une matière favorisant le glissement entre les surfaces en contact, telle que du Téflon.  Articulation mechanism according to any one of the preceding claims, characterized in that said at least one sliding element (6) and / or the lower wall of the arc (5) is coated with a material promoting the sliding between the surfaces in contact, such as Teflon.
Mécanisme d'articulation selon l'une quelconque des revendications précédentes caractérisé en ce qu'il comprend au moins un moyen de motorisation.  Articulation mechanism according to any one of the preceding claims, characterized in that it comprises at least one motorization means.
Siège articulé comprenant un mécanisme selon l'une quelconque des revendications précédentes caractérisé en ce qu'il comprend des moyens de mémorisation et/ou de mesure de données relatives à la personne portée, tels que des capteurs de poids, de dimensions, de visualisation ou de données biométriques.  Articulated seat comprising a mechanism according to any one of the preceding claims, characterized in that it comprises means for storing and / or measuring data relating to the person being carried, such as sensors for weight, dimensions, visualization or biometric data.
Siège articulé selon la revendication 8 caractérisé en ce que lesdits moyens de mémorisation et/ou de mesure de données sont reliés et coopèrent avec un moyen de traitement de données tel qu'un ordinateur.  Articulated seat according to claim 8 characterized in that said storage means and / or data measurement are connected and cooperate with a data processing means such as a computer.
Siège articulé selon la revendication 9 caractérisé en ce ledit moyen de traitement de données coopère avec au moins un moyen de motorisation du mécanisme d'articulation. Articulated seat according to claim 9 characterized in that said data processing means cooperates with at least one motor means of the articulation mechanism.
EP13723877.0A 2012-05-09 2013-04-26 Hinged seat provided with a synchronous movement between the seat portion and the backrest Withdrawn EP2877057A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1254231A FR2990336A1 (en) 2012-05-09 2012-05-09 JOINT MECHANISM AND ARTICULATED SEAT WITH SYNCHRONOUS MOVEMENT BETWEEN THE SEAT AND THE BACKREST
PCT/FR2013/050928 WO2013167822A1 (en) 2012-05-09 2013-04-26 Hinged seat provided with a synchronous movement between the seat portion and the backrest

Publications (1)

Publication Number Publication Date
EP2877057A1 true EP2877057A1 (en) 2015-06-03

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EP13723877.0A Withdrawn EP2877057A1 (en) 2012-05-09 2013-04-26 Hinged seat provided with a synchronous movement between the seat portion and the backrest

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EP (1) EP2877057A1 (en)
FR (1) FR2990336A1 (en)
WO (1) WO2013167822A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212121A1 (en) * 2012-07-11 2014-01-16 Eb-Invent Gmbh seat device
US10213071B2 (en) * 2016-12-05 2019-02-26 Guomin Tao Foldable chair frame adapted for bedpan
US10531737B2 (en) * 2017-01-24 2020-01-14 Jolozero, Llc Zero gravity chaise chair systems and method
CN107928972B (en) * 2017-11-24 2024-02-02 浙江荣泰健康电器有限公司 Novel backrest and calf linkage massage armchair

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239548A1 (en) * 1992-11-25 1993-04-15 Juergen Stiewe Office or work chair - has brackets, rollers, and circular tracks to allow adjustable tilt for seat and backrest
GB9608012D0 (en) 1996-04-18 1996-06-19 Samson Ilan Reclinable seating
US6056363A (en) * 1997-12-29 2000-05-02 Maddox; Lee W. Reclining computer chair apparatus
US6450578B1 (en) * 2000-08-18 2002-09-17 Michael Blake Taggett Ergonomic chair
DE202005014571U1 (en) 2005-09-15 2005-11-17 Kintec-Solution Gmbh Armchair with stand has seat, tiltable backrest, swing out legrest whereby armchair is tiltable in sitting and couch positions, backrest is coupled to legrest by connecting rod such that if backrest is tilted to rear, legrest swings out
DE202005017987U1 (en) 2005-11-17 2006-01-12 Kintec-Solution Gmbh armchair
US8087724B2 (en) * 2009-08-10 2012-01-03 Gravitonus Inc. Ergonomic computer chair
AT11784U1 (en) * 2009-10-14 2011-05-15 Walter Schindlegger OFFICE CHAIR

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013167822A1 *

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WO2013167822A1 (en) 2013-11-14
FR2990336A1 (en) 2013-11-15

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