WO1997027832A1 - Chair with a built-in standing aid device - Google Patents

Chair with a built-in standing aid device Download PDF

Info

Publication number
WO1997027832A1
WO1997027832A1 PCT/FR1996/000171 FR9600171W WO9727832A1 WO 1997027832 A1 WO1997027832 A1 WO 1997027832A1 FR 9600171 W FR9600171 W FR 9600171W WO 9727832 A1 WO9727832 A1 WO 9727832A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
frame
axis
backrest
relative
Prior art date
Application number
PCT/FR1996/000171
Other languages
French (fr)
Inventor
Robert Nicault
Original Assignee
Robert Nicault
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 Robert Nicault filed Critical Robert Nicault
Priority to EP96902324A priority Critical patent/EP0818983A1/en
Priority to PCT/FR1996/000171 priority patent/WO1997027832A1/en
Publication of WO1997027832A1 publication Critical patent/WO1997027832A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/14—Standing-up or sitting-down aids

Definitions

  • the present invention relates to a seat with an integrated verticalization device, in particular with an adjustment of the incidence of the backrest as a function of the morphology of the user.
  • the first consequence is the high cost of the finished product and the second is the increase in unreliability, in addition to the inconvenience due to the bulk.
  • the verticalization device comprises an armchair comprising a frame, a seat and a back, this seat and this back being hinged together around a transverse articulation axis, called the first axis, means for adjusting the inclination of the backrest relative to the frame, as well as means for tilting the seat forward, around a transverse axis, called the second axis, disposed at the front of this chair, between a low sitting position and a high standing position, and this device is characterized in that the means for adjusting the inclination of the backrest relative to the frame comprise at least one arm of which one of the ends is articulated relative to to this file around a transverse axis, called the third axis, and the other end of which comprises guide means relative to the frame, according to a given stroke profile.
  • the guide means comprise at least one cam supported by the frame with a light of given profile, formed in this cam, as well as at least one roller carried by the arm and intended to cooperate with this light .
  • An improvement provides for a stop for the travel of the roller in the light, with an adjustable position, so as to limit the inclination of the backrest in the low position of the seat.
  • the invention also provides a simple arrangement allowing the mounting of this cam which is pivotable about a transverse articulation axis, called the fourth axis, and which comprises means for adjusting its inclination relative to the frame, around this third axis.
  • These means for adjusting the inclination of the cam relative to the frame comprise a nut secured to the cam by an articulation and a screw mounted to freely rotate and fixed in translation relative to the frame, screwing into this nut.
  • a particular embodiment is such that the third axis of articulation between the arm and the backrest is arranged, when the chair is in a seated position, below the seat, and the light has a crescent-shaped profile. open towards the front of the chair, so as to give this backrest a movement towards the front then towards the rear, with respect to the frame and the seat.
  • the seat tilting means comprise a deformable parallelogram comprising a first link interposed between the seat and one of the ends of a second link, the other end of which is pivotally mounted relative to the frame, as well as a third link interposed between the seat and the second link to form the deformable parallelogram, the front end of the seat being fixed to guide bars, mounted free in vertical translation relative to the frame.
  • the verticalization device comprises a single means of operation, interposed between the frame and the seat, designed to raise the seat and rotate it around the second axis.
  • the device also includes armrests which are only integral with the seat.
  • FIG. 1 is a schematic perspective view of the seat and of the backrest, with the materialization of the different axes of rotation,
  • FIG. 2 is a view of the frame intended to receive the seat and the backrest shown in Figure 1
  • - Figure 3 is a schematic view of the complete chair in the "seated" position
  • FIG. 4 is a view identical to that of FIG. 3, in the "standing" position, and
  • FIG. 5 is a detail view of the means for adjusting the inclination of the cams relative to the frame.
  • FIG. 1 the seat 10, the backrest 12 is referenced and in FIG. 2, the frame 14.
  • the seat 10 comprises a plate 16 shown diagrammatically in a rectangular shape, but which is generally cut and preformed for better user comfort.
  • This plate is articulated on its rear part with the backrest 12, around a transverse axis of rotation 18, called the first axis.
  • this plate At its front end, this plate is integral with bars 20, articulated around a transverse axis of rotation 22, called the second axis.
  • the plate is also supported by two symmetrical deformable parallelograms, each comprising a rear link 24, an arm 26, at the rear end of which this rear link 24 is articulated, about an axis 28, a front link 30, articulated on the arm 26 upstream from its front end, this front end being articulated on the frame, around an axis 32.
  • the rear links 24 are articulated relative to the plate about an axis 33.
  • Means 34 are also provided for tilting the plate 16 from the seat forward, around the axis 22.
  • tilting means 34 comprise a pair of L-shaped levers 36, each articulated at the point of intersection of the branches of the L, with respect to the frame around an axis 38.
  • a spacer 40 is interposed between the short arms 5 of the L, near their free ends.
  • the free ends of the long branches are mounted articulated with the free ends of two lifting links 42.
  • the spacer 40 is equipped with a yoke provided for receiving the free end of the rod 46 of a jack, the body of which is articulated on the frame, as can be seen in FIGS. 3 and 4.
  • the file 12 comprises a support element 47 extending by two extension arms 49, the ends of which are mounted articulated each with a tilting arm 50 forming part of the tilting means 52 of this file.
  • Each tilting arm 50 carries at its free end a roller 54.
  • the means for adjusting the inclination 52 of the backrest further comprise two cams 60, as shown in FIG. 2, which is a plate which includes a light 62, in the shape of a crescent, the opening of which is oriented towards the front.
  • This cam 60 is articulated relative to the frame 14, around a transverse axis 64, called the fourth axis.
  • Means for adjusting the inclination of this cam 60 around this fourth axis 64 are also provided.
  • These adjustment means 66 shown in detail in FIG. 5, comprise a screw 68 mounted free to rotate by relative to the frame and locked in translation, as well as a nut 70, articulated relative to the cam and screwing on the screw 68.
  • guide tubes 72 provided for slidingly receive the bars 20, yokes 74 and 76 provided to receive respectively the ends of the arms 26, the straight line passing through the holes of these yokes being coincident with the axis 32 and the levers 34, the right passing through the holes of these yokes being coincident with the axis 38.
  • Figures 3 and 4 describe the operation of the device according to the invention and show the advantages listed in the preamble.
  • the chair When the user is seated, the chair is in the position shown in Figure 3.
  • the rod 46 of the jack 48 is in the extended position and the links 42 hold the seat down.
  • the backrest 12 which is linked to the seat is inclined backwards, in the comfort position.
  • This inclination is due to the fact that the rollers 54 have moved in the slots 62 until they come into abutment at the bottom of these slots or on an adjustable stop 78, schematically represented in FIG. 3.
  • the lever 34 pivots around Tax 38 and the long arm lifts the link 42 which lifts the plate 16 from the seat.
  • This plate 16 of the seat pivots around the second axis 22.
  • the parallelogram ensures a guided movement of the plate as well as the bars 20, which slide in the guides 72. The plate 16 therefore tends to lift somewhat during pivoting .
  • the backrest lifts and, as the length of the tilt adjustment arms 50 is fixed, the rollers roll in the slots 62 which guide these arms and force them backwards in the first part of the movement, which corresponds to one tilting the backrest forward so that the user is assisted by tilting the chest forward.
  • the lights tend to recall the tilt adjustment arms forward, which corresponds to a return of the backrest to a position close to the vertical since, simultaneously, the seat s 'is moved regularly and that the seat-back articulation axis, that is to say the axis 18, is located more forward.
  • the frame can be completed by accessories known in themselves such as a basin: in this case, the plate 16 of the seat 10 is provided with an opening allowing access to this basin.
  • the basin as such is disposed on a suitable support which is not part of the present invention, because within the reach of ordinary skill in the art.
  • the embodiment provides a jack of the electric type, this for obvious practical reasons: cleanliness, size, reliability, security by locking in position in the event of a breakdown and low noise emitted during operation.
  • an electric actuator is generally connected to the general electricity supply network, but it can easily be supplied by an autonomous source such as a battery.

Abstract

A standing aid device including a chair with a frame (14), a seat (10) and a backrest (12), said seat and said backrest being mutually pivotably about a first transverse pivot axis (18), means (52) for adjusting the angle of the backrest to the frame, and tilting means (34) for tilting the seat forwards about a second transverse axis (22) at the front of the chair, between a lowered sedentary position and a raised standing position. The means (52) for adjusting the angle of the backrest to the frame include at least one arm (50) of which one end is pivotably connected to the backrest about a third transverse axis (58), while the other end includes guide means (60, 62) for guiding the arm relative to the frame along a predetermined path.

Description

SIEGE AVEC UN DISPOSITIF INTEGRE DE VERTICALISATION SEAT WITH AN INTEGRATED VERTICALIZATION DEVICE
La présente invention a pour objet un siège avec un dispositif intégré de verticalisation, notamment avec un réglage de l'incidence du dossier en fonction de la morphologie de l'utilisateur.The present invention relates to a seat with an integrated verticalization device, in particular with an adjustment of the incidence of the backrest as a function of the morphology of the user.
On connait le problème des personnes souffrant d'un handicap, pour qui le passage de la position assise à la position debout est impossible sans assistance.We know the problem of people with disabilities, for whom the transition from sitting to standing is impossible without assistance.
De ce fait, il est recherché des moyens d'assistance qui assurent cette verticalisation.Therefore, assistance means are sought which ensure this verticalization.
On connait des dispositifs qui permettent le passage de la position couchée à la position assise et de la position assise à la position debout, mais de tels dispositifs restent complexes dans leurs agencements pour atteindre ces résultats multiples.Devices are known which allow the passage from the lying position to the sitting position and from the sitting position to the standing position, but such devices remain complex in their arrangements to achieve these multiple results.
C'est le cas du fauteuil décrit dans la demande de brevet W0-A-7900647.This is the case of the armchair described in patent application WO-A-7900647.
La première conséquence est le coût élevé du produit fini et la seconde est l'augmentation du manque de fiabilité, en plus de l'inconvénient dû à l'encombrement.The first consequence is the high cost of the finished product and the second is the increase in unreliability, in addition to the inconvenience due to the bulk.
Aussi, la possession et l'utilisation de ce type de fauteuil sont réservées essentiellement à des organismes de soins. On sait que les besoins peuvent être plus limités et, surtout, le but est de rendre accessible à l'achat par un grand nombre de personnes, un matériel d'assistance efficace et fiable.Also, the possession and use of this type of chair are mainly reserved for care organizations. We know that needs can be more limited and, above all, the goal is to make accessible to purchase by a large number of people, efficient and reliable support equipment.
Un autre besoin reste néanmoins insatisfait par les appareils proposés par l'art antérieur: en effet, la verticalisation idéale consiste à relever le bassin de la personne en maintenant son buste incliné vers l'avant et en laissant le buste se redresser au fur et à mesure pour s'arrêter avant que la personne ne soit totalement stable, en position debout, cette phase de stabilisation devant impérativement être effectuée sous le contrôle et avec les moyens physiques propres de la personne.Another need remains, however, unmet by the devices proposed by the prior art: in fact, the ideal verticalization consists in raising the pelvis of the person by keeping his chest tilted forward and letting the bust straighten out as measure to stop before the person is completely stable, in a standing position, this stabilization phase must imperatively be carried out under the control and with the person's own physical means.
On est sûr ainsi d'éviter une poussée de cette personne vers l'avant avec une trop grande amplitude, ce qui pourrait provoquer sa chute.One is thus sure to avoid a push of this person forward with too great an amplitude, which could cause his fall.
Il se trouve qu'en fonction de la morphologie de la personne, le déplacement du centre de gravité, nécessaire pour la mise en station debout, est atteint plus ou moins rapidement et pour une assistance identique au relevage, l'inclinaison nécessaire du buste est plus ou moins importante.It turns out that depending on the morphology of the person, the displacement of the center of gravity, necessary for standing, is achieved more or less quickly and for assistance identical to lifting, the necessary inclination of the bust is more or less important.
Les fauteuils connus de l'art antérieur sont exempts de ce type de réglage qui assure pourtant à l'utilisateur un confort tout à fait perceptible.The armchairs known from the prior art are free from this type of adjustment which nevertheless provides the user with quite noticeable comfort.
C'est donc le but de la présente invention de proposer un dispositif de verticalisation qui intègre un tel réglage, qui se limite à une phase unique de passage d'une position assise à la position debout, qui est d'une grande fiabilité, qui est facile à mettre en oeuvre, qui peut être alimenté avec une source d'énergie autonome, qui est d'une grande compacité et qui permet une mise en place amovible d'accessoires complémentaires, tels qu'un bassin par exemple.It is therefore the aim of the present invention to propose a verticalization device which incorporates such an adjustment, which is limited to a single phase of transition from a seated position to a standing position, which is very reliable, which is easy to implement, which can be powered by an energy source self-contained, which is very compact and which allows removable installation of additional accessories, such as a basin for example.
A cet effet, le dispositif de verticalisation selon l'invention comprend un fauteuil comportant un bâti, une assise et un dossier, cette assise et ce dossier étant articulés entre eux autour d'un axe d'articulation transversal, dit premier axe, des moyens de réglage de l'inclinaison du dossier par rapport au bâti, ainsi que des moyens de basculement de l'assise vers l'avant, autour d'un axe transversal, dit deuxième axe, disposé à l'avant de ce fauteuil, entre une position basse de station assise et une position haute de station debout, et ce dispositif se caractérise en ce que les moyens de réglage de l'inclinaison du dossier par rapport au bâti comprennent au moins un bras dont l'une des extrémités est articulée par rapport à ce dossier autour d'un axe transversal, dit troisième axe, et dont l'autre extrémité comprend des moyens de guidage par rapport au bâti, suivant un profil de course donné.To this end, the verticalization device according to the invention comprises an armchair comprising a frame, a seat and a back, this seat and this back being hinged together around a transverse articulation axis, called the first axis, means for adjusting the inclination of the backrest relative to the frame, as well as means for tilting the seat forward, around a transverse axis, called the second axis, disposed at the front of this chair, between a low sitting position and a high standing position, and this device is characterized in that the means for adjusting the inclination of the backrest relative to the frame comprise at least one arm of which one of the ends is articulated relative to to this file around a transverse axis, called the third axis, and the other end of which comprises guide means relative to the frame, according to a given stroke profile.
Selon un mode de réalisation préférentiel, les moyens de guidage comprennent au moins une came supportée par le bâti avec une lumière de profil donné, ménagée dans cette came, ainsi qu'au moins un galet porté par le bras et prévu pour coopérer avec cette lumière.According to a preferred embodiment, the guide means comprise at least one cam supported by the frame with a light of given profile, formed in this cam, as well as at least one roller carried by the arm and intended to cooperate with this light .
Un perfectionnement prévoit une butée de la course du galet dans la lumière, à position réglable, de façon à limiter l'inclinaison du dossier dans la position basse de l'assise.An improvement provides for a stop for the travel of the roller in the light, with an adjustable position, so as to limit the inclination of the backrest in the low position of the seat.
L'invention prévoit aussi un agencement simple permettant de réaliser le montage de cette came qui est pivotante autour d'un axe d'articulation transversal, dit quatrième axe, et qui comprend des moyens de réglage de son inclinaison par rapport au bâti, autour de ce troisième axe.The invention also provides a simple arrangement allowing the mounting of this cam which is pivotable about a transverse articulation axis, called the fourth axis, and which comprises means for adjusting its inclination relative to the frame, around this third axis.
Ces moyens de réglage de l'inclinaison de la came par rapport au bâti comprennent un écrou solidaire de la came par une articulation et une vis montée à libre en rotation et fixe en translation par rapport au bâti, vissant dans cet écrou.These means for adjusting the inclination of the cam relative to the frame comprise a nut secured to the cam by an articulation and a screw mounted to freely rotate and fixed in translation relative to the frame, screwing into this nut.
Un mode de réalisation particulier est tel que le troisième axe d'articulation entre le bras et le dossier est disposé, lorsque le fauteuil est en position assise, au-dessous de l'assise, et que la lumière a un profil en forme de croissant ouvert vers l'avant du fauteuil, de façon à conférer à ce dossier un mouvement vers l'avant puis vers l'arrière, par rapport au bâti et à l'assise.A particular embodiment is such that the third axis of articulation between the arm and the backrest is arranged, when the chair is in a seated position, below the seat, and the light has a crescent-shaped profile. open towards the front of the chair, so as to give this backrest a movement towards the front then towards the rear, with respect to the frame and the seat.
Les moyens de basculement de l'assise comprennent un parallélogramme déformable comportant une première biellette interposée entre l'assise et l'une des extrémité d'une deuxième biellette dont l'autre extrémité est montée à pivotement par rapport au bâti, ainsi qu'une troisième biellette interposée entre l'assise et la deuxième biellette pour former le parallélogramme déformable, l'extrémité avant de l'assise étant fixée à des barreaux de guidage, montés libres en translation verticale par rapport au bâti.The seat tilting means comprise a deformable parallelogram comprising a first link interposed between the seat and one of the ends of a second link, the other end of which is pivotally mounted relative to the frame, as well as a third link interposed between the seat and the second link to form the deformable parallelogram, the front end of the seat being fixed to guide bars, mounted free in vertical translation relative to the frame.
Le dispositif de verticalisation selon l'invention comprend un moyen unique de manoeuvre, interposé entre le bâti et l'assise, prévu pour relever l'assise et la faire pivoter autour du deuxième axe.The verticalization device according to the invention comprises a single means of operation, interposed between the frame and the seat, designed to raise the seat and rotate it around the second axis.
Le dispositif comprend également des accoudoirs qui sont uniquement solidaires de l'assise. L'invention sera mieux comprise, et d'autres buts, avantages et caractéristiques de celle-ci apparaîtront plus clairement à la lecture de la description qui suit de modes préférés de réalisation donnés à titre non limitatif et à laquelle quatre planches de dessins sont annexées sur lesquelles :The device also includes armrests which are only integral with the seat. The invention will be better understood, and other objects, advantages and characteristics thereof will appear more clearly on reading the following description of preferred embodiments given without limitation and to which four plates of drawings are annexed on which :
- la Figure 1 est une vue en perspective schématique de l'assise et du dossier, avec matérialisation des différents axes de rotation,FIG. 1 is a schematic perspective view of the seat and of the backrest, with the materialization of the different axes of rotation,
- la Figure 2 est une vue du bâti prévu pour recevoir l'assise et le dossier représentés sur la Figure 1, - la Figure 3 est une vue schématique du fauteuil complet en position "assise",- Figure 2 is a view of the frame intended to receive the seat and the backrest shown in Figure 1, - Figure 3 is a schematic view of the complete chair in the "seated" position,
- la Figure 4 est une vue identique à celle de la Figure 3, en position "debout", etFIG. 4 is a view identical to that of FIG. 3, in the "standing" position, and
- la Figure 5 est une vue de détail des moyens de réglage de l'inclinaison des cames par rapport au bâti.- Figure 5 is a detail view of the means for adjusting the inclination of the cams relative to the frame.
Sur la Figure 1, on a référencé l'assise 10, le dossier 12 et sur la Figure 2, le bâti 14.In FIG. 1, the seat 10, the backrest 12 is referenced and in FIG. 2, the frame 14.
L'assise 10 comprend une plaque 16 schématisée de forme rectangulaire, mais qui est généralement découpée et préformée pour un meilleur confort de l'utilisateur.The seat 10 comprises a plate 16 shown diagrammatically in a rectangular shape, but which is generally cut and preformed for better user comfort.
Cette plaque est articulée sur sa partie arrière avec le dossier 12, autour d'un axe transversal de rotation 18, dit premier axe.This plate is articulated on its rear part with the backrest 12, around a transverse axis of rotation 18, called the first axis.
A son extrémité avant, cette plaque est solidaire de barreaux 20, articulés autour d'un axe transversal de rotation 22, dit deuxième axe. La plaque est également supportée par deux parallélogrammes déformables symétriques, comportant chacun une biellette arrière 24, un bras 26, à l'extrémité arrière duquel est articulée cette biellette arrière 24, autour d'un axe 28, une biellette avant 30, articulée sur le bras 26 en amont de son extrémité avant, cette extrémité avant étant articulée sur le bâti, autour d'un axe 32.At its front end, this plate is integral with bars 20, articulated around a transverse axis of rotation 22, called the second axis. The plate is also supported by two symmetrical deformable parallelograms, each comprising a rear link 24, an arm 26, at the rear end of which this rear link 24 is articulated, about an axis 28, a front link 30, articulated on the arm 26 upstream from its front end, this front end being articulated on the frame, around an axis 32.
Les biellettes arrière 24 sont articulées par rapport à la plaque autour d'un axe 33.The rear links 24 are articulated relative to the plate about an axis 33.
Il est également prévu des moyens de basculement 34 de la plaque 16 de l'assise vers l'avant, autour de l'axe 22.Means 34 are also provided for tilting the plate 16 from the seat forward, around the axis 22.
Ces moyens de basculement 34 comprennent une paire de leviers 36 en L, articulés chacun au point d'intersection des branches du L, par rapport au bâti autour d'un axe 38.These tilting means 34 comprise a pair of L-shaped levers 36, each articulated at the point of intersection of the branches of the L, with respect to the frame around an axis 38.
Une entretoise 40 est interposée entre les branches 5 courtes du L, à proximité de leurs extrémités libres.A spacer 40 is interposed between the short arms 5 of the L, near their free ends.
Les extrémités libres des branches longues sont montées articulées avec les extrémités libres de deux biellettes de relevage 42.The free ends of the long branches are mounted articulated with the free ends of two lifting links 42.
Ces deux biellettes de relevage 42 sont articulées, par leurs autres extrémités, autour du même axe 33 d'articulation des biellettes arrière par rapport à la plaque 16.These two lifting rods 42 are articulated, by their other ends, around the same axis 33 of articulation of the rear rods relative to the plate 16.
L'entretoise 40 est équipée d'une chape prévue pour recevoir l'extrémité libre de la tige 46 d'un vérin, dont le corps est articulé sur le bâti, ainsi que cela est visible sur les Figures 3 et 4. Le dossier 12 comprend un élément d'appui 47 se prolongeant par deux bras prolongateurs 49 dont les extrémités sont montées articulées chacune avec un bras d'inclinaison 50 faisant partie des moyens d'inclinaison 52 de ce dossier.The spacer 40 is equipped with a yoke provided for receiving the free end of the rod 46 of a jack, the body of which is articulated on the frame, as can be seen in FIGS. 3 and 4. The file 12 comprises a support element 47 extending by two extension arms 49, the ends of which are mounted articulated each with a tilting arm 50 forming part of the tilting means 52 of this file.
Chaque bras d'inclinaison 50 porte à son extrémité libre un galet 54.Each tilting arm 50 carries at its free end a roller 54.
L'axe transversal de rotation de ces galets est référencéThe transverse axis of rotation of these rollers is referenced
56, tandis que l'axe de rotation transversal entre les bras d'inclinaison 50 et les bras prolongateurs 48, dit troisième axe de rotation, est référencé 58.56, while the transverse axis of rotation between the tilt arms 50 and the extension arms 48, called the third axis of rotation, is referenced 58.
Les moyens de réglage de l'inclinaison 52 du dossier comprennent en plus deux cames 60, comme représentées sur la Figure 2, qui est une plaque qui comprend une lumière 62, en forme de croissant dont l'ouverture est orientée vers l'avant.The means for adjusting the inclination 52 of the backrest further comprise two cams 60, as shown in FIG. 2, which is a plate which includes a light 62, in the shape of a crescent, the opening of which is oriented towards the front.
Cette came 60 est articulée par rapport au bâti 14, autour d'un axe transversal 64, dit quatrième axe.This cam 60 is articulated relative to the frame 14, around a transverse axis 64, called the fourth axis.
Il est, en outre, prévu des moyens de réglage 66 de l'inclinaison de cette came 60 autour de ce quatrième axe 64. Ces moyens de réglage 66, représentés en détail sur la Figure 5, comprennent une vis 68 montée libre en rotation par rapport au bâti et bloquée en translation, ainsi qu'un écrou 70, articulé par rapport à la came et vissant sur la vis 68.Means for adjusting the inclination of this cam 60 around this fourth axis 64 are also provided. These adjustment means 66, shown in detail in FIG. 5, comprise a screw 68 mounted free to rotate by relative to the frame and locked in translation, as well as a nut 70, articulated relative to the cam and screwing on the screw 68.
En se reportant à la Figure 2, on remarque la présence de tubes de guidage 72, prévus pour recevoir à coulissement les barreaux 20, des chapes 74 et 76 prévues pour recevoir respectivement les extrémités des bras 26, la droite passant par les trous de ces chapes étant confondue avec l'axe 32 et les leviers 34, la droite passant par les trous de ces chapes étant confondue avec l'axe 38.Referring to Figure 2, we note the presence of guide tubes 72, provided for slidingly receive the bars 20, yokes 74 and 76 provided to receive respectively the ends of the arms 26, the straight line passing through the holes of these yokes being coincident with the axis 32 and the levers 34, the right passing through the holes of these yokes being coincident with the axis 38.
Les Figures 3 et 4 permettent de décrire le fonctionnement du dispositif selon l'invention et de faire apparaître les avantages énumérés en préambule. Lorsque l'utilisateur est assis, le fauteuil se trouve dans la position de la Figure 3.Figures 3 and 4 describe the operation of the device according to the invention and show the advantages listed in the preamble. When the user is seated, the chair is in the position shown in Figure 3.
La tige 46 du vérin 48 est en position sortie et les biellettes 42 maintiennent l'assise vers le bas. Le dossier 12 qui est lié à l'assise est incliné vers l'arrière, en position de confort.The rod 46 of the jack 48 is in the extended position and the links 42 hold the seat down. The backrest 12 which is linked to the seat is inclined backwards, in the comfort position.
Cette inclinaison est due au fait que les galets 54 se sont déplacés dans les lumières 62 jusqu'à venir en butée au fond de ces lumières ou sur une butée réglable 78, schématiquement représentée sur la Figure 3.This inclination is due to the fact that the rollers 54 have moved in the slots 62 until they come into abutment at the bottom of these slots or on an adjustable stop 78, schematically represented in FIG. 3.
Lorsque l'utilisateur souhaite se lever, il commande Vactionnement du vérin dont la tige 46 rentre dans le corps 48.When the user wishes to stand up, he controls the actuation of the jack, the rod 46 of which enters the body 48.
Le levier 34 pivote autour de Taxe 38 et le bras long soulève le biellette 42 qui soulève la plaque 16 de l'assise. Cette plaque 16 de l'assise pivote autour du deuxième axe 22. Le parallélogramme assure un déplacement guidé de la plaque ainsi que les barreaux 20, qui coulissent dans les guides 72. La plaque 16 a donc tendance à se soulever quelque peu lors du pivotement.The lever 34 pivots around Tax 38 and the long arm lifts the link 42 which lifts the plate 16 from the seat. This plate 16 of the seat pivots around the second axis 22. The parallelogram ensures a guided movement of the plate as well as the bars 20, which slide in the guides 72. The plate 16 therefore tends to lift somewhat during pivoting .
Simultanément, le dossier se soulève et, comme la longueur des bras de réglage d'inclinaison 50 est fixe, les galets roulent dans les lumières 62 qui guident ces bras et les forcent vers l'arrière dans la première partie du déplacement, ce qui correspond à une inclinaison vers l'avant du dossier afin que l'utilisateur soit assisté en inclinant le buste vers l'avant.Simultaneously, the backrest lifts and, as the length of the tilt adjustment arms 50 is fixed, the rollers roll in the slots 62 which guide these arms and force them backwards in the first part of the movement, which corresponds to one tilting the backrest forward so that the user is assisted by tilting the chest forward.
Lors de la seconde partie de la montée, les lumières ont tendance à rappeler les bras de réglage d'inclinaison vers l'avant, ce qui correspond à un retour du dossier dans une position proche de la verticale puisque, simultanément, l'assise s'est déplacée de façon régulière et que l'axe d'articulation assise-dossier, c'est à dire l'axe 18, se trouve plus vers l'avant.During the second part of the ascent, the lights tend to recall the tilt adjustment arms forward, which corresponds to a return of the backrest to a position close to the vertical since, simultaneously, the seat s 'is moved regularly and that the seat-back articulation axis, that is to say the axis 18, is located more forward.
Ainsi, la verticalisation est obtenue de façon progressive, en se rapprochant le plus possible du mouvement naturel de l'utilisateur. La prise d'équilibre est ensuite une étape importante et la verticalisation doit s'arrêter un peu en amont de cette position d'équilibre théorique.Verticalization is thus obtained progressively, as close as possible to the natural movement of the user. The taking of equilibrium is then an important step and the verticalization must stop a little upstream of this theoretical equilibrium position.
Il se trouve que ce point a une position dans l'espace qui varie en fonction de la morphologie et le présent dispositif permet de le trouver en réglant, pour un même utilisateur, par approximations successives, les vis 68.It turns out that this point has a position in space which varies according to the morphology and the present device makes it possible to find it by adjusting, for the same user, by successive approximations, the screws 68.
Ces vis permettent de régler l'inclinaison des cames 60 et, donc, le positionnement des lumières et, par conséquent, l'inclinaison du dossier en fonction du déplacement de l'assise.These screws make it possible to adjust the inclination of the cams 60 and, therefore, the positioning of the lights and, consequently, the inclination of the backrest as a function of the movement of the seat.
On peut ainsi reculer ou avancer le centre de gravité par rapport à la base de sustentation, en fonction de la position du centre de gravité de la personne, donné par sa morphologie.We can thus move back or advance the center of gravity with respect to the base of lift, depending on the position of the center of gravity of the person, given by his morphology.
De façon complémentaire, on peut disposer des accoudoirs qui devront être munis d'articulations adéquates pour suivre le déplacement angulaire relatif de l'assise et du dossier ou qui devront être uniquement fixés sur l'assise. Le bâti peut être complété par des accessoires connus en eux-même tels qu'un bassin: dans ce cas, la plaque 16 de l'assise 10 est muni d'une ouverture autorisant l'accès à ce bassin.In addition, we can have armrests which must have adequate articulations to follow the relative angular displacement of the seat and backrest or which must only be fixed on the seat. The frame can be completed by accessories known in themselves such as a basin: in this case, the plate 16 of the seat 10 is provided with an opening allowing access to this basin.
Le bassin en tant que tel est disposé sur un support adapté qui ne fait pas partie de la présente invention, car à la portée de l'homme de l'art. De même, le mode de réalisation prévoit un vérin du type électrique, ceci pour des raisons pratiques évidentes: propreté, encombrement, fiabilité, sécurité par blocage en position en cas de panne et faible bruit émis en fonctionnement.The basin as such is disposed on a suitable support which is not part of the present invention, because within the reach of ordinary skill in the art. Similarly, the embodiment provides a jack of the electric type, this for obvious practical reasons: cleanliness, size, reliability, security by locking in position in the event of a breakdown and low noise emitted during operation.
De plus, un vérin électrique est généralement branché sur le réseau général d'alimentation électrique, mais il peut aisément être alimenté par une source autonome telle qu'une batterie.In addition, an electric actuator is generally connected to the general electricity supply network, but it can easily be supplied by an autonomous source such as a battery.
Bien que l'on ait représenté et décrit ce que l'on considère actuellement être les modes de réalisation préférés de la présente invention, il est évident que l'Homme de l'Art pourra y apporter différents changements et modifications sans sortir du cadre de la présente invention tel que défini par les revendications jointes. Although we have represented and described what are currently considered to be the preferred embodiments of the present invention, it is obvious that those skilled in the art will be able to make various changes and modifications thereto without departing from the scope of the present invention as defined by the appended claims.

Claims

REVENDICATIONS
1. Dispositif de verticalisation comprenant un fauteuil comportant un bâti (14), une assise (10) et un dossier (12), cette assise et ce dossier étant articulés entre eux autour d'un axe d'articulation transversal (18), dit premier axe, des moyens de réglage (52) de l'inclinaison du dossier par rapport au bâti, ainsi que des moyens de basculement (34) de l'assise vers l'avant, autour d'un axe transversal (22), dit deuxième axe, disposé à l'avant de ce fauteuil, entre une position basse de station assise et une position haute de station debout, caractérisé en ce que les moyens de réglage (52) de l'inclinaison du dossier par rapport au bâti comprennent au moins un bras (50) dont l'une des extrémités est articulée par rapport à ce dossier autour d'un axe transversal (58), dit troisième axe, et dont l'autre extrémité comprend des moyens de guidage (60, 62) par rapport au bâti, suivant un profil de course donné.1. Verticalization device comprising an armchair comprising a frame (14), a seat (10) and a backrest (12), this seat and this backrest being hinged together around a transverse articulation axis (18), said first axis, means for adjusting (52) the inclination of the backrest relative to the frame, as well as means for tilting (34) of the seat forward, around a transverse axis (22), said second axis, disposed at the front of this chair, between a low sitting position and a high standing position, characterized in that the adjustment means (52) of the inclination of the backrest relative to the frame comprise at at least one arm (50), one of the ends of which is articulated with respect to this backrest about a transverse axis (58), called the third axis, and the other end of which comprises guide means (60, 62) by relation to the frame, following a given stroke profile.
2. Dispositif de verticalisation selon la revendication2. Verticalization device according to claim
1, caractérisé en ce que les moyens de guidage comprennent au moins une came (60) supportée par le bâti (14) avec une lumière (62) de profil donné, ménagée dans cette came, ainsi qu'au moins un galet (54) porté par le bras (50) de réglage d'inclinaison et prévu pour coopérer avec cette lumière.1, characterized in that the guide means comprise at least one cam (60) supported by the frame (14) with a light (62) of given profile, formed in this cam, as well as at least one roller (54) carried by the tilt adjustment arm (50) and provided to cooperate with this light.
3. Dispositif de verticalisation selon la revendication3. Verticalization device according to claim
2, caractérisé en ce qu'il comprend une butée (78), à position réglable, de la course du galet (54) dans la lumière (62), de façon à limiter l'inclinaison du dossier dans la position basse de l'assise. 2, characterized in that it comprises a stop (78), with adjustable position, of the stroke of the roller (54) in the slot (62), so as to limit the inclination of the backrest in the low position of the seated.
4. Dispositif de verticalisation selon la revendication 2 ou 3, caractérisé en ce que la came (60) est montée pivotante autour d'un axe d'articulation transversal (64), dit quatrième axe, et en ce qu'elle comprend des moyens de réglage (66) de l'inclinaison de la came par rapport au bâti, autour de ce quatrième axe.4. verticalization device according to claim 2 or 3, characterized in that the cam (60) is pivotally mounted about a transverse articulation axis (64), called the fourth axis, and in that it comprises means adjusting (66) the inclination of the cam relative to the frame, around this fourth axis.
5. Dispositif de verticalisation selon la revendication 4, caractérisé en ce que les moyens de réglage (66) de l'inclinaison de la came (60) par rapport au bâti (14) comprennent un écrou (70) solidaire de la came par une articulation et une vis (68) montée libre en rotation et fixe en translation par rapport au bâti, vissant dans cet écrou.5. A verticalization device according to claim 4, characterized in that the adjustment means (66) of the inclination of the cam (60) relative to the frame (14) comprise a nut (70) integral with the cam by a articulation and a screw (68) mounted free in rotation and fixed in translation relative to the frame, screwing in this nut.
6. Dispositif de verticalisation selon l'une quelconque des revendications précédentes, caractérisé en ce que le troisième axe d'articulation (58) entre le bras (50) et le dossier (12) est disposé, lorsque le fauteuil est en position assise, au-dessous de l'assise, et en ce que la lumière (62) a un profil en forme de croissant ouvert vers l'avant du fauteuil, de façon à conférer à ce dossier un mouvement vers l'avant, puis vers l'arrière, par rapport au bâti et à l'assise.6. verticalization device according to any one of the preceding claims, characterized in that the third articulation axis (58) between the arm (50) and the backrest (12) is arranged, when the chair is in the sitting position, below the seat, and in that the light (62) has a crescent-shaped profile open towards the front of the chair, so as to give this backrest a movement towards the front, then towards the rear, relative to the frame and the seat.
7. Dispositif de verticalisation selon d'une quelconque des revendications précédentes, caractérisé en ce que les moyens de basculement de l'assise comprennent un parallélogramme déformable comportant une première biellette (48) interposé entre l'assise (10) et l'une des extrémités d'une deuxième biellette (26) dont l'autre extrémité est montée à pivotement par rapport au bâti (14), ainsi qu'une troisième biellette (30) interposée entre l'assise et la deuxième biellette pour former le parallélogramme déformable, l'extrémité avant de l'assise (10) étant fixée à des barreaux (20) de guidage, montés libres en translation verticale par rapport au bâti. 7. Verticalization device according to any one of the preceding claims, characterized in that the means for tilting the seat comprise a deformable parallelogram comprising a first link (48) interposed between the seat (10) and one of the ends of a second link (26) the other end of which is pivotally mounted relative to the frame (14), as well as a third link (30) interposed between the seat and the second link to form the deformable parallelogram, the front end of the seat (10) being fixed to guide bars (20), mounted free in vertical translation relative to the frame.
8. Dispositif de verticalisation selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend d'un moyen unique de manoeuvre (46, 48), interposé entre le bâti et l'assise, prévu pour relever l'assise et la faire pivoter autour du deuxième axe (22).8. verticalization device according to any one of the preceding claims, characterized in that it comprises a single operating means (46, 48), interposed between the frame and the seat, designed to raise the seat and rotate it around the second axis (22).
9. Dispositif de verticalisation selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des accoudoirs qui sont uniquement solidaires de l'assise. 9. A verticalization device according to any one of the preceding claims, characterized in that it includes armrests which are only integral with the seat.
PCT/FR1996/000171 1996-02-01 1996-02-01 Chair with a built-in standing aid device WO1997027832A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP96902324A EP0818983A1 (en) 1996-02-01 1996-02-01 Chair with a built-in standing aid device
PCT/FR1996/000171 WO1997027832A1 (en) 1996-02-01 1996-02-01 Chair with a built-in standing aid device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1996/000171 WO1997027832A1 (en) 1996-02-01 1996-02-01 Chair with a built-in standing aid device

Publications (1)

Publication Number Publication Date
WO1997027832A1 true WO1997027832A1 (en) 1997-08-07

Family

ID=9487977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1996/000171 WO1997027832A1 (en) 1996-02-01 1996-02-01 Chair with a built-in standing aid device

Country Status (2)

Country Link
EP (1) EP0818983A1 (en)
WO (1) WO1997027832A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803175A (en) * 1996-04-17 1998-09-08 Myers, Jr.; William Desmond Perforating gun connection and method of connecting for live well deployment
WO2007042033A1 (en) * 2005-10-07 2007-04-19 R82 A/S Seat adustment arrangement
WO2012032305A1 (en) * 2010-09-09 2012-03-15 Integrated Furniture Technologies Limited Lift-recliner chair
KR20190046362A (en) * 2017-10-26 2019-05-07 오승윤 Chair

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343871A (en) * 1966-03-03 1967-09-26 George H Yates Automatically operated invalid chair
CH593056A5 (en) * 1975-06-24 1977-11-15 Valutec Ag Seat to assist disabled person to stand - has power cylinder controlled by operating handle to swing up seat and backrest
WO1979000647A1 (en) * 1978-02-21 1979-09-06 Toosbuy K Wheel chair
FR2621244A1 (en) * 1987-10-02 1989-04-07 Inst Nat Sante Rech Med Lifting apparatus for handicapped person
FR2724299A1 (en) * 1994-09-13 1996-03-15 Nicault Robert Armchair with raising seat assisting user to stand

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343871A (en) * 1966-03-03 1967-09-26 George H Yates Automatically operated invalid chair
CH593056A5 (en) * 1975-06-24 1977-11-15 Valutec Ag Seat to assist disabled person to stand - has power cylinder controlled by operating handle to swing up seat and backrest
WO1979000647A1 (en) * 1978-02-21 1979-09-06 Toosbuy K Wheel chair
FR2621244A1 (en) * 1987-10-02 1989-04-07 Inst Nat Sante Rech Med Lifting apparatus for handicapped person
FR2724299A1 (en) * 1994-09-13 1996-03-15 Nicault Robert Armchair with raising seat assisting user to stand

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803175A (en) * 1996-04-17 1998-09-08 Myers, Jr.; William Desmond Perforating gun connection and method of connecting for live well deployment
WO2007042033A1 (en) * 2005-10-07 2007-04-19 R82 A/S Seat adustment arrangement
WO2012032305A1 (en) * 2010-09-09 2012-03-15 Integrated Furniture Technologies Limited Lift-recliner chair
CN103298373A (en) * 2010-09-09 2013-09-11 整装家具科技有限公司 Lift-recliner chair
US9155388B2 (en) 2010-09-09 2015-10-13 Integrated Furniture Technologies Limited Lift-recliner chair and method thereof
US9808385B2 (en) 2010-09-09 2017-11-07 Integrated Furniture Technologies Limited Lift-recliner chair
KR20190046362A (en) * 2017-10-26 2019-05-07 오승윤 Chair
KR102050584B1 (en) 2017-10-26 2019-12-02 오승윤 Chair

Also Published As

Publication number Publication date
EP0818983A1 (en) 1998-01-21

Similar Documents

Publication Publication Date Title
EP1764070B1 (en) Standing-up aid with means to set the inclination of the footrest in vertical position
EP1864637B1 (en) Standing seat with reclining back
EP2004124B1 (en) Multi-position chair for handicapped user
EP0059141A1 (en) Wheel chair with means for aiding a patient to stand up
EP0077280B1 (en) Lifting chair
FR2697418A1 (en) Multiple position wheel chair - has mobile seat back and foot-rest having seat articulated round front horizontal axle and lateral arms articulated on base and seat back and foot-rest moved by jacks
FR2724299A1 (en) Armchair with raising seat assisting user to stand
WO1997027832A1 (en) Chair with a built-in standing aid device
EP1488770B1 (en) Stand-up chair with self-modifying tilting of the backrest
BE546887A (en)
BE426335A (en)
FR2475871A3 (en) SUPPORT ARM FOR SEAT OR ARMCHAIR COMPRISING A RELEVABLE ARMREST
EP1066776A1 (en) Adjustable chair
EP0495862B1 (en) Patient lifting apparatus
EP0586765A1 (en) Device for positionning a person, especially a handicapped person
WO2018104595A1 (en) Anterior support device for the lower limbs
WO1997029725A1 (en) Power chair for use as a standing aid
FR2856280A1 (en) VERTICALIZER ARMCHAIR WITH ADJUSTABLE HANDLES
WO2002047513A1 (en) Multiple-position armchair
FR2621244A1 (en) Lifting apparatus for handicapped person
EP1005809B1 (en) Stable, laterally deployable assembly of the kind of a desk or a table
FR2661088A1 (en) Improvements to wheelchairs for handicapped persons
FR2648705A1 (en) RECLINING BACKREST AND WHEELCHAIR
EP0231718A1 (en) Collapsible, elevating wheel chair
FR2712802A1 (en) Chair for handicapped or infirm with motorised assistance for standing and sitting

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 1996902324

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 1996902324

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 97527338

Format of ref document f/p: F

WWW Wipo information: withdrawn in national office

Ref document number: 1996902324

Country of ref document: EP