EP0880348A1 - Power chair for use as a standing aid - Google Patents

Power chair for use as a standing aid

Info

Publication number
EP0880348A1
EP0880348A1 EP97902415A EP97902415A EP0880348A1 EP 0880348 A1 EP0880348 A1 EP 0880348A1 EP 97902415 A EP97902415 A EP 97902415A EP 97902415 A EP97902415 A EP 97902415A EP 0880348 A1 EP0880348 A1 EP 0880348A1
Authority
EP
European Patent Office
Prior art keywords
seat
coupling members
base
chair
chair 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Withdrawn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
EP97902415A
Other languages
German (de)
French (fr)
Inventor
Philippe Blanchard
Roland Pellevoisin
Gérard Garnier
Angélico BENETTI
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.)
Idesage
Original Assignee
Idesage
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 Idesage filed Critical Idesage
Publication of EP0880348A1 publication Critical patent/EP0880348A1/en
Withdrawn legal-status Critical Current

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 powered lift chair providing assistance in lifting people.
  • the invention relates more particularly to a motorized lift chair of the type comprising a frame forming a base, a mechanism for raising and lowering a mobile seat moving from the rear to the front of the chair when it passes from a low position.
  • the movable seat consisting of at least two elements affecting in profile the shape of a square with variable geometry, the first element of the seat, serving to support the buttocks, being at one end secured or articulated to the back of the chair and, at its opposite end, connected to the second element of the seat by means of a connection, such as a hinged connection, said first and second elements of the seat being hinged together so that, during the lifting of the seat, the second element of the seat swings down around the hinge while the first element maintains by a permanent and stable gluteal support the person ne until the practically upright position, while during the descent of the seat, the second element of the seat is forced to rise gradually to come, in the low position of the seat, to reconstitute the seat.
  • Such a lift chair is described in particular in patent FR-A-2,712,802.
  • This type of chair allows the person in particular not to be injured during the movement between the two extreme positions of the seat, to have their legs released when they must stand after the lift of the chair and s '' install in stable support at the bottom of the seat before starting the descent while being kept well seated during the ascent and descent.
  • the lifting and lowering devices provided on these chairs have been relatively complex up to now and therefore expensive. They required in particular the presence of a pulley, slides and a jack, the pulley, constituting a reduction system, certainly allowing the doubling of the stroke of the jack but obliging to use a jack of high power generating a cost more high installation.
  • the object of the present invention is to provide a motorized lifting assistance chair which overcomes these drawbacks by means of a raising and lowering device which, associated with a frame of original design, allows reliable, safe, simple and inexpensive operation. said chair while offering a large choice of settings for the different positions of this chair.
  • Another object of the present invention is to provide an armchair whose so-called comfort adjustment is only accompanied by a very small elevation of the seat so as not to modify the habits of the user.
  • the subject of the invention is a motorized lifting chair of the type mentioned in the introduction, characterized in that the frame of said chair consists of a base equipped with feet, a frame connected by first members of coupling, such as connecting rods, to the first element of the seat and by second coupling members to the base, said coupling members each being movable between two extreme positions under the action of the raising and lowering mechanism , said first coupling members essentially ensuring, during their movement, a so-called adjustment of comfort of the seat by relative displacement of the elements of the seat and possibly of the backrest and / or of a calf rest, said second coupling members essentially ensuring the movement of the seat from a low position to a high position and vice versa so as to provide the user, the elderly, disabled or others with ace sistance to switch from sitting to standing position and vice versa. Thanks to this design of this intermediate chassis, an adjustment of comfort and assistance in lifting is obtained by actuating the coupling members.
  • the first and second coupling members are moved alternately, the second coupling members can only be moved when the first coupling members occupy an extreme position and vice versa.
  • FIGS. 1 to 4 represent schematic side views of a chair according to the invention when it passes from a low position to a high position and
  • Figure 5 shows a perspective side view of a chair according to the invention.
  • the motorized lift chair comprises a frame 1 forming a base and a mechanism for raising and lowering a seat 3A, 3B moving from the rear towards the front of the chair during its passage from a low position to a high position.
  • the mobile seat is made up of at least two elements 3A, 3B having a profile in the form of a square with variable geometry.
  • the first element 3A of the seat is, at one end, secured or articulated to the backrest 4 of the chair and, at its opposite end, connected to the second element 3B of the seat by means of a hinged connection 14.
  • Said element 3A of the seat is movable substantially parallel to itself during its movement.
  • Said first and second elements 3A, 3B of the seat are hinged together so that, during the lifting of the seat, the second element 3B of the seat swings down around the hinge 14 while the first element 3A maintains the person by a permanent and stable gluteal support up to the practically upright position.
  • the second element 3B of the seat is forced to rise gradually to come, in the low position, to reconstitute the seat.
  • the frame 1 of the chair is itself made up of a base 2 fitted with feet 15.
  • This base 2 generally takes the form of a frame.
  • This frame further comprises a chassis 6 connected by first coupling members 8, such as connecting rods, to the first element 3A of the seat and by second coupling members 9 to the base 2.
  • first coupling members 8 and 9 are each movable between two extreme positions under the action of the up and down mechanism.
  • the first coupling members 8 essentially provide, during their movement, a so-called seat comfort adjustment by relative displacement of the elements 3A, 3B of the seat and possibly of the backrest 4 and / or of a rest calves 5, while the second coupling members 9 essentially move the seat from a low position to a high position and vice versa to provide assistance in lifting people.
  • These bodies 8 and 9 for coupling the chassis 6, on the one hand to the first element 3A of the seat, and on the other hand to the base 2, are inclined transversely between a low point before the chair and a high point at the rear. of the chair to form a quadrilateral, preferably a parallelogram, deformable by actuation of the raising and lowering mechanism. Consequently, the coupling members 8 and 9 deploy from the rear to the front of the chair during lifting the seat. At least one pair of each type of coupling member is arranged on each side of the chair.
  • these first and second coupling members 8, 9 are preferably moved alternately, that is to say in turn, the second coupling members 9 can only be moved when the first coupling members 8 occupy an extreme position and vice versa.
  • the first coupling members 8 constituted by connecting rods begin to move when the actuation of the device rises and falls to an extreme position corresponding to that shown in FIG. 2.
  • the second coupling members 9 also constituted by connecting rods can begin to move to occupy positions conforming first to Figure 3 and then secondly to Figure 4.
  • the extreme position or close to the extreme position of these second coupling members 9 therefore corresponds to a position in which the person is in a standing position.
  • the reverse passage from the high position of the seat to the low position will be carried out in the same way by first moving the second coupling members 9 corresponding to the lowering of the latter then by lowering the first members of '' coupling 8.
  • the up and down mechanism consists of a jack 13, preferably double acting electric, one end of which is articulated at a stationary point on the base 2 and the other end of which is articulated on the first element 3A of the seat or any element integral in displacement with the first element of the seat, for example one of the first coupling members 8.
  • this jack 13 is associated with a thrust member, such as a jack gas 16, which connects the seat and the chassis 6 to help move the first coupling members 8 and constitute an end-of-travel device when the seat is in position d 1 maximum spacing of the chassis 6.
  • This pushing member makes it possible to obtain an alternative displacement of the first and second coupling members 8 and 9.
  • This pushing member can also be replaced by a double pawl system making it possible, during lifting, to hold the base 2 and the chassis 6 integral until the complete deployment of the coupling members 8. Then, the pawl is mechanically tilted in order to release the base 2 and the chassis 6 while maintaining the coupling members 8 in position, to allow the lifting movement of the seat by deployment of the coupling members 9. Conversely, during the descent, this double pawl keeps the coupling members 8 in the maximum deployed position, until the coupling members 9 are fully folded, the pawl is then tilted to secure the base 2 and the chassis 6 and release the coupling members 8 so as to complete the downward movement. In the absence of one or the other of the mechanisms, correct positioning and perfect adjustment of the elements of the chair would then become impossible.
  • this thrust member can be replaced by a member working in traction.
  • this member will be disposed between the chassis 6 and the base 2. It will then have the function not to facilitate the movement of the first coupling members 8 but, on the contrary, to go against the operation in the direction of deployment of the second coupling members 9.
  • the so-called comfort adjustment of the chair which is generally carried out when the chair occupies a low position, that is to say when the second coupling members 9 occupy a position substantially parallel to the frame of the base 2, comprises the displacement of the elements 3A and 3B of the seat on the one hand and possibly, on the other hand, the relative positioning of the backrest 4 and the calf rest 5.
  • the relative positioning of the backrest 4 and the calf rest 5 can be '' use independent motors.
  • such a device can only be envisaged for relatively expensive armchairs. It is therefore necessary to provide armchair designs in which there is only one raising and lowering device consisting of a single cylinder without additional motor.
  • the backrest 4 is connected by a connecting rod 11 to the first coupling member 8 connecting the first element 3A of the seat and the chassis 6.
  • This connecting rod 11 allows the so-called comfort adjustment of the backrest relative to the first element 3A of the seat.
  • the calf rest 5 is connected on the one hand to the second element 3B of the seat by means of a connection, such as a hinged connection, on the other hand to the base 2 by a connecting member 12 fixedly mounted on the calf rest 5 and pivotally articulated on the base 2.
  • This mounting of the calf rest allows on the one hand to retract the calf rest when the seat moves from a low position at a high position, on the other hand to authorize a comfort adjustment by positioning the calf rest substantially in the extension of the second element 3B of the seat when the seat occupies a low position so as to allow the user to occupy a substantially lying position.
  • This adjustment is therefore carried out in a simple manner without requiring the presence of additional motors.
  • the second element 3B of the seat maintained directly or indirectly in generally sliding contact with the rest of the chair is automatically positioned by the displacement of the first element 3A of the seat due to the hinged connection between the first and second elements of the seat.
  • the armchair to include armrests 7 substantially affecting the shape of a handle secured to the base 2 or to the chassis 6, the free ends of said handle forming a base possibly being fitted with rollers 10.
  • the armrests 7 can have a large number of shapes.
  • these armrests 7 can be formed in one piece with the chassis 6 and can be interconnected by means of a cross member. They can also be attached to the chassis 6 and removably mounted on the latter.
  • the dressing of the chair can be carried out at the user's choice.
  • the chair has a structure which is always substantially identical from one chair to another, the user subsequently choosing the covering.

Abstract

A standing aid chair with a seat consisting of at least two elements (3A, 3B) in the shape of a variable-geometry bracket. The chair has a structural assembly (1) consisting of a base (2) with legs (15), and a frame (6) connected via first coupling members (8) to the first seat element (3A) and via second coupling members (9) to the base (2), each of said coupling members (8, 9) being movable between two end positions by a raising and lowering mechanism. When moved, said first coupling members (8) essentially enable a so-called comfort adjustment of the seat, whereas said second coupling members (9) essentially move the seat from a lowered position to a raised position and vice versa. Said chair is useful as a standing aid.

Description

Fauteuil élévateur motorisé Motorized lift chair
La présente invention concerne un fauteuil élévateur motorisé procurant une assistance au levage de personnes.The present invention relates to a powered lift chair providing assistance in lifting people.
L'invention concerne plus particulièrement un fauteuil élévateur motorisé du type comprenant un bâti formant piétement, un mécanisme de monte et baisse d'une assise mobile se déplaçant de l'arrière vers l'avant du fauteuil lors de son passage d'une position basse à une position haute, l'assise mobile étant constituée d'au moins deux éléments affectant de profil la forme d'une équerre à géométrie variable, le premier élément de l'assise, servant à l'appui des fessiers, étant à une extrémité solidarisé ou articulé au dossier du fauteuil et, à son extrémité opposée, relié au second élément de l'assise au moyen d'une liaison, telle qu'une liaison à charnière, lesdits premier et second éléments de l'assise étant articulés entre eux de telle sorte que, au cours de la levée de l'assise, le second élément de l'assise bascule vers le bas autour de la charnière alors que le premier élément maintient par un appui fessier permanent et stable la personne jusqu'à la position pratiquement debout, tandis qu'au cours de la descente de l'assise, le second élément de l'assise est forcé à se relever progressivement pour venir, en position basse de l'assise, reconstituer l'assise.The invention relates more particularly to a motorized lift chair of the type comprising a frame forming a base, a mechanism for raising and lowering a mobile seat moving from the rear to the front of the chair when it passes from a low position. in a high position, the movable seat consisting of at least two elements affecting in profile the shape of a square with variable geometry, the first element of the seat, serving to support the buttocks, being at one end secured or articulated to the back of the chair and, at its opposite end, connected to the second element of the seat by means of a connection, such as a hinged connection, said first and second elements of the seat being hinged together so that, during the lifting of the seat, the second element of the seat swings down around the hinge while the first element maintains by a permanent and stable gluteal support the person ne until the practically upright position, while during the descent of the seat, the second element of the seat is forced to rise gradually to come, in the low position of the seat, to reconstitute the seat.
Un tel fauteuil élévateur est notamment décrit dans le brevet FR-A-2.712.802. Ce type de fauteuil permet en particulier à la personne de ne pas être blessée au cours du déplacement entre les deux positions extrêmes de l'assise, d'avoir les jambes dégagées lorsqu'elle doit se tenir debout après la levée du fauteuil et de s'installer en appui stable au fond de l'assise avant d'entamer la descente tout en étant maintenue bien assise au cours de la montée et de la descente. Toutefois, les dispositifs de monte et baisse prévus sur ces fauteuils étaient jusqu'à maintenant relativement complexes et de ce fait onéreux. Ils nécessitaient en particulier la présence d'une poulie, de glissières et d'un vérin, la poulie, constituant un système de démultiplication, permettant certes le doublement de la course du vérin mais obligeant à utiliser un vérin de forte puissance engendrant un coût plus élevé de l'installation. De même, les glissières, en raison des charges relativement importantes à supporter, devaient être d'une résistance qui élevait leur coût et rendait leur conception onéreuse. En outre, la présence d'un câble de poulie susceptible de se rompre présentait un risque au niveau de la sécurité des personnes. Enfin, la maintenance et le démontage du vérin étaient rendus relativement difficiles du fait des nombreux éléments entourant ledit vérin. De même, il était nécessaire de désengager un organe de liaison entre les premier et second éléments de l'assise lorsqu'on désirait, en position haute ou basse, aligner les éléments de l'assise. Cette manipulation n'était pas souvent aisée à réaliser par l'utilisateur.Such a lift chair is described in particular in patent FR-A-2,712,802. This type of chair allows the person in particular not to be injured during the movement between the two extreme positions of the seat, to have their legs released when they must stand after the lift of the chair and s '' install in stable support at the bottom of the seat before starting the descent while being kept well seated during the ascent and descent. However, the lifting and lowering devices provided on these chairs have been relatively complex up to now and therefore expensive. They required in particular the presence of a pulley, slides and a jack, the pulley, constituting a reduction system, certainly allowing the doubling of the stroke of the jack but obliging to use a jack of high power generating a cost more high installation. Likewise, the slides, because of the relatively large loads to be supported, had to be of a resistance which raised their cost and made their design expensive. In addition, the presence of a pulley cable that could break presented a risk to personal safety. Finally, maintenance and disassembly of the jack were made relatively difficult due to the many elements surrounding said jack. Similarly, it was necessary to disengage a connecting member between the first and second elements of the seat when it was desired, in the high or low position, to align the elements of the seat. This manipulation was not often easy to perform by the user.
On connaît également un grand nombre de dispositifs motorisés permettant le déplacement d'une assise d'un fauteuil. Toutefois, la plupart de ces dispositifs s'appliquent au déplacement d'une assise monobloc comme cela est décrit dans le brevet US-A-5.203.610. De tels dispositifs ne sont donc pas applicables en l'état à une assise en deux éléments.A large number of motorized devices are also known for moving a seat of an armchair. However, most of these devices apply to the displacement of a single-piece seat as described in US-A-5,203,610. Such devices are therefore not applicable in the state to a seat in two elements.
Le but de la présente invention est de proposer un fauteuil motorisé d'assistance au levage qui pallie ces inconvénients grâce à un dispositif de monte et baisse qui, associé à un bâti de conception originale, permet un fonctionnement fiable, sûr, simple et peu onéreux dudit fauteuil tout en offrant un grand choix de réglages des différentes positions de ce fauteuil.The object of the present invention is to provide a motorized lifting assistance chair which overcomes these drawbacks by means of a raising and lowering device which, associated with a frame of original design, allows reliable, safe, simple and inexpensive operation. said chair while offering a large choice of settings for the different positions of this chair.
Un autre but de la présente invention est de proposer un fauteuil dont le réglage dit de confort ne s'accompagne que d'une très faible élévation de l'assise de manière à ne pas modifier les habitudes de l'utilisateur.Another object of the present invention is to provide an armchair whose so-called comfort adjustment is only accompanied by a very small elevation of the seat so as not to modify the habits of the user.
A cet effet, l'invention a pour objet un fauteuil élévateur motorisé du type mentionné à l'introduction, caractérisé en ce que le bâti dudit fauteuil est constitué d'une embase équipée de pieds, d'un châssis relié par des premiers organes d'accouplement, tels que des bielles, au premier élément de l'assise et par des seconds organes d'accouplement à l'embase, lesdits organes d'accouplement étant chacun déplaçables entre deux positions extrêmes sous l'action du mécanisme de monte et baisse, lesdits premiers organes d'accouplement assurant essentiellement, au cours de leur déplacement, un réglage dit de confort de l'assise par déplacement relatif des éléments de l'assise et éventuellement du dossier et/ou d'un repose-mollets, lesdits seconds organes d'accouplement assurant essentiellement le déplacement de l'assise d'une position basse à une position haute et inversement de manière à procurer à l'utilisateur, personnes âgées, handicapés ou autres une assistance pour le passage de la position assise à la position debout et inversement. Grâce à cette conception de ce châssis intermédiaire, on obtient par actionnement des organes d'accouplement un réglage de confort et une assistance au levage.To this end, the subject of the invention is a motorized lifting chair of the type mentioned in the introduction, characterized in that the frame of said chair consists of a base equipped with feet, a frame connected by first members of coupling, such as connecting rods, to the first element of the seat and by second coupling members to the base, said coupling members each being movable between two extreme positions under the action of the raising and lowering mechanism , said first coupling members essentially ensuring, during their movement, a so-called adjustment of comfort of the seat by relative displacement of the elements of the seat and possibly of the backrest and / or of a calf rest, said second coupling members essentially ensuring the movement of the seat from a low position to a high position and vice versa so as to provide the user, the elderly, disabled or others with ace sistance to switch from sitting to standing position and vice versa. Thanks to this design of this intermediate chassis, an adjustment of comfort and assistance in lifting is obtained by actuating the coupling members.
Selon une forme de réalisation préférée de l'invention, les premiers et seconds organes d'accouplement sont déplacés alternativement, les seconds organes d'accouplement ne pouvant être déplacés que lorsque les premiers organes d'accouplement occupent une position extrême et inversement.According to a preferred embodiment of the invention, the first and second coupling members are moved alternately, the second coupling members can only be moved when the first coupling members occupy an extreme position and vice versa.
L'invention sera bien comprise à la lecture de la description suivante d'un exemple de réalisation, en référence aux dessins annexés dans lesquels :The invention will be clearly understood on reading the following description of an exemplary embodiment, with reference to the accompanying drawings in which:
les figures 1 à 4 représentent des vues schématiques de profil d'un fauteuil conforme à l'invention lors de son passage d'une position basse à une position haute etFIGS. 1 to 4 represent schematic side views of a chair according to the invention when it passes from a low position to a high position and
la figure 5 représente une vue en perspective de côté d'un fauteuil conforme à l'invention.Figure 5 shows a perspective side view of a chair according to the invention.
Le fauteuil élévateur motorisé, objet de l'invention, comprend un bâti 1 formant piétement et un mécanisme de monte et baisse d'une assise 3A, 3B se déplaçant de l'arrière vers l'avant du fauteuil lors de son passage d'une position basse à une position haute. L'assise mobile est constituée d'au moins deux éléments 3A, 3B affectant de profil la forme d'une équerre à géométrie variable. Le premier élément 3A de l'assise est, à une extrémité, solidarisé ou articulé au dossier 4 du fauteuil et, à son extrémité opposée, relié au second élément 3B de l'assise au moyen d'une liaison 14 à charnière. Ledit élément 3A de l'assise est mobile sensiblement parallèlement à lui-même au cours de son déplacement. Lesdits premier et second éléments 3A, 3B de l'assise sont articulés entre eux de telle sorte que, au cours de la levée de l'assise, le second élément 3B de l'assise bascule vers le bas autour de la charnière 14 alors que le premier élément 3A maintient par un appui fessier permanent et stable la personne jusqu'à la position pratiquement debout. Au cours de la descente de l'assise, le second élément 3B de l'assise est forcé à se relever progressivement pour venir, en position basse, reconstituer l'assise. Ces déplacements de l'assise sont illustrés aux figures 1 à 4. On note que, dans ces figures, l'assise ne se déplace pas tout à fait parallèlement à elle-même mais décrit au contraire une trajectoire relativement complexe.The motorized lift chair, object of the invention, comprises a frame 1 forming a base and a mechanism for raising and lowering a seat 3A, 3B moving from the rear towards the front of the chair during its passage from a low position to a high position. The mobile seat is made up of at least two elements 3A, 3B having a profile in the form of a square with variable geometry. The first element 3A of the seat is, at one end, secured or articulated to the backrest 4 of the chair and, at its opposite end, connected to the second element 3B of the seat by means of a hinged connection 14. Said element 3A of the seat is movable substantially parallel to itself during its movement. Said first and second elements 3A, 3B of the seat are hinged together so that, during the lifting of the seat, the second element 3B of the seat swings down around the hinge 14 while the first element 3A maintains the person by a permanent and stable gluteal support up to the practically upright position. During the descent of the seat, the second element 3B of the seat is forced to rise gradually to come, in the low position, to reconstitute the seat. These movements of the seat are illustrated in Figures 1 to 4. It is noted that, in these figures, the seat does not move completely parallel to itself but on the contrary describes a relatively complex trajectory.
Le bâti 1 du fauteuil est quant à lui constitué d'une embase 2 équipée de pieds 15. Cette embase 2 affecte généralement la forme d'un cadre. Ce bâti comporte encore un châssis 6 relié par des premiers organes d'accouplement 8, tels que des bielles, au premier élément 3A de l'assise et par des seconds organes d'accouplement 9 à l'embase 2. Ces organes d'accouplement 8 et 9 sont chacun déplaçables entre deux positions extrêmes sous l'action du mécanisme de monte et baisse. Les premiers organes d'accouplement 8 assurent essentiellement, au cours de leur déplacement, un réglage dit de confort de l'assise par déplacement relatif des éléments 3A, 3B de l'assise et éventuellement du dossier 4 et/ou d'un repose-mollets 5, tandis que les seconds organes d'accouplement 9 assurent essentiellement le déplacement de l'assise d'une position basse à une position haute et inversement pour procurer une assistance au levage de personnes.The frame 1 of the chair is itself made up of a base 2 fitted with feet 15. This base 2 generally takes the form of a frame. This frame further comprises a chassis 6 connected by first coupling members 8, such as connecting rods, to the first element 3A of the seat and by second coupling members 9 to the base 2. These coupling members 8 and 9 are each movable between two extreme positions under the action of the up and down mechanism. The first coupling members 8 essentially provide, during their movement, a so-called seat comfort adjustment by relative displacement of the elements 3A, 3B of the seat and possibly of the backrest 4 and / or of a rest calves 5, while the second coupling members 9 essentially move the seat from a low position to a high position and vice versa to provide assistance in lifting people.
Ces organes 8 et 9 d'accouplement du châssis 6, d'une part au premier élément 3A de l'assise, d'autre part à l'embase 2, sont inclinés transversalement entre un point bas avant du fauteuil et un point haut arrière du fauteuil pour former un quadrilatère, de préférence un parallélogramme, déformable par actionnement du mécanisme de monte et baisse. En conséquence, les organes d'accouplement 8 et 9 se déploient de l'arrière vers l'avant du fauteuil au cours du levage de l'assise. Au moins une paire de chaque type d'organes d'accouplement est disposée de chaque côté du fauteuil. Généralement, ces premier et second organes d'accouplement 8, 9 sont déplacés de préférence alternativement, c'est-à-dire tour à tour, les seconds organes d'accouplement 9 ne pouvant être déplacés que lorsque les premiers organes d'accouplement 8 occupent une position extrême et inversement. Ainsi, dans la figure 1, les premiers organes d'accouplement 8 constitués par des bielles commencent à se déplacer lors de 1 'actionnement du dispositif monte et baisse jusqu'à une position extrême correspondant à celle représentée dans la figure 2. A ce moment, les seconds organes d'accouplement 9 constitués également par des bielles peuvent commencer à se déplacer pour occuper des positions conformes dans un premier temps à la figure 3 puis dans un second temps à la figure 4. La position extrême ou proche de la position extrême de ces seconds organes d'accouplement 9 correspond donc à une position dans laquelle la personne est en position debout. Le passage inverse de la position haute de l'assise à la position basse s'effectuera de la même manière par déplacement dans un premier temps des seconds organes d'accouplement 9 correspondant à l'abaissement de ces derniers puis par abaissement des premiers organes d'accouplement 8.These bodies 8 and 9 for coupling the chassis 6, on the one hand to the first element 3A of the seat, and on the other hand to the base 2, are inclined transversely between a low point before the chair and a high point at the rear. of the chair to form a quadrilateral, preferably a parallelogram, deformable by actuation of the raising and lowering mechanism. Consequently, the coupling members 8 and 9 deploy from the rear to the front of the chair during lifting the seat. At least one pair of each type of coupling member is arranged on each side of the chair. Generally, these first and second coupling members 8, 9 are preferably moved alternately, that is to say in turn, the second coupling members 9 can only be moved when the first coupling members 8 occupy an extreme position and vice versa. Thus, in FIG. 1, the first coupling members 8 constituted by connecting rods begin to move when the actuation of the device rises and falls to an extreme position corresponding to that shown in FIG. 2. At this time , the second coupling members 9 also constituted by connecting rods can begin to move to occupy positions conforming first to Figure 3 and then secondly to Figure 4. The extreme position or close to the extreme position of these second coupling members 9 therefore corresponds to a position in which the person is in a standing position. The reverse passage from the high position of the seat to the low position will be carried out in the same way by first moving the second coupling members 9 corresponding to the lowering of the latter then by lowering the first members of '' coupling 8.
Le mécanisme de monte et baisse est quant à lui constitué d'un vérin 13, de préférence électrique double effet, dont une extrémité est articulée en un point stationnaire de l'embase 2 et dont l'autre extrémité est articulée sur le premier élément 3A de l'assise ou tout élément solidaire en déplacement du premier élément de l'assise, par exemple l'un des premiers organes d'accouplement 8. Généralement, ce vérin 13 est associé à un organe de poussée, tel qu'un vérin à gaz 16, qui relie l'assise et le châssis 6 pour aider au déplacement des premiers organes d'accouplement 8 et constituer un dispositif de fin de course lorsque l'assise est en position d1écartement maximal du châssis 6. Cet organe de poussée permet d'obtenir un déplacement alternatif des premier et second organes d'accouplement 8 et 9. Cet organe de poussée peut également être remplacé par un système à double cliquet permettant, lors de la levée, de maintenir l'embase 2 et le châssis 6 solidaires jusqu'au déploiement complet des organes d'accouplement 8. Ensuite, le cliquet est basculé mécaniquement afin de libérer l'embase 2 et le châssis 6 tout en maintenant en position les organes d'accouplement 8, pour permettre le mouvement de levée de l'assise par déploiement des organes d'accouplement 9. Inversement, lors de la descente, ce double cliquet maintient les organes d'accouplement 8 en position déployée maximale, jusqu'au repliement complet des organes d'accouplement 9, le cliquet est alors basculé pour venir solidariser l'embase 2 et le châssis 6 et libérer les organes d'accouplement 8 de manière à achever le mouvement de descente. En l'absence de l'un ou l'autre des mécanismes, un positionnement correct et un réglage parfait des éléments du fauteuil deviendraient alors impossibles.The up and down mechanism consists of a jack 13, preferably double acting electric, one end of which is articulated at a stationary point on the base 2 and the other end of which is articulated on the first element 3A of the seat or any element integral in displacement with the first element of the seat, for example one of the first coupling members 8. Generally, this jack 13 is associated with a thrust member, such as a jack gas 16, which connects the seat and the chassis 6 to help move the first coupling members 8 and constitute an end-of-travel device when the seat is in position d 1 maximum spacing of the chassis 6. This pushing member makes it possible to obtain an alternative displacement of the first and second coupling members 8 and 9. This pushing member can also be replaced by a double pawl system making it possible, during lifting, to hold the base 2 and the chassis 6 integral until the complete deployment of the coupling members 8. Then, the pawl is mechanically tilted in order to release the base 2 and the chassis 6 while maintaining the coupling members 8 in position, to allow the lifting movement of the seat by deployment of the coupling members 9. Conversely, during the descent, this double pawl keeps the coupling members 8 in the maximum deployed position, until the coupling members 9 are fully folded, the pawl is then tilted to secure the base 2 and the chassis 6 and release the coupling members 8 so as to complete the downward movement. In the absence of one or the other of the mechanisms, correct positioning and perfect adjustment of the elements of the chair would then become impossible.
Dans encore une autre forme de réalisation de l'invention, cet organe de poussée peut être remplacé par un organe travaillant à la traction. Dans ce cas, cet organe sera disposé entre le châssis 6 et l'embase 2. Il aura alors pour fonction non pas de faciliter le déplacement des premiers organes d'accouplement 8 mais, au contraire, d'aller à l'encontre du fonctionnement dans le sens d'un déploiement des seconds organes d'accouplement 9.In yet another embodiment of the invention, this thrust member can be replaced by a member working in traction. In this case, this member will be disposed between the chassis 6 and the base 2. It will then have the function not to facilitate the movement of the first coupling members 8 but, on the contrary, to go against the operation in the direction of deployment of the second coupling members 9.
Le réglage dit de confort du fauteuil, qui s'effectue généralement lorsque le fauteuil occupe une position basse, c'est-à-dire lorsque les seconds organes d'accouplement 9 occupent une position sensiblement parallèle au cadre de l'embase 2, comprend le déplacement des éléments 3A et 3B de l'assise d'une part et éventuellement, d'autre part, le positionnement relatif du dossier 4 et du repose-mollets 5. Le positionnement relatif du dossier 4 et du repose-mollets 5 peut s'effectuer au moyen de moteurs indépendants. Toutefois, un tel dispositif n'est envisageable que pour des fauteuils relativement onéreux. Il est donc nécessaire de prévoir des conceptions de fauteuils dans lesquels il n'existe qu'un seul dispositif de monte et baisse constitué d'un seul vérin sans moteur supplémentaire. Dans ce cas, le dossier 4 est relié par une bielle 11 au premier organe d'accouplement 8 reliant le premier élément 3A de l'assise et le châssis 6. Cette bielle 11 permet le réglage dit de confort du dossier par rapport au premier élément 3A de l'assise. De la même manière, le repose-mollets 5 est relié d'une part au second élément 3B de l'assise au moyen d'une liaison, telle qu'une liaison à charnière, d'autre part à l'embase 2 par un organe de liaison 12 monté fixe sur le repose-mollets 5 et articulé à pivotement sur l'embase 2. Ce montage du repose-mollets permet d'une part d'escamoter le repose-mollets lorsque l'assise passe d'une position basse à une position haute, d'autre part d'autoriser un réglage de confort par positionnement du repose-mollets sensiblement dans le prolongement du second élément 3B de l'assise lorsque l'assise occupe une position basse de manière à permettre à l'utilisateur d'occuper une position sensiblement allongée. Ce réglage s'effectue donc de manière simple sans nécessiter la présence de moteurs supplémentaires. De même, le second élément 3B de l'assise maintenu directement ou indirectement en appui généralement glissant sur le reste du fauteuil est automatiquement positionné par le déplacement du premier élément 3A de l'assise du fait de la liaison à charnières entre les premier et second éléments de l'assise.The so-called comfort adjustment of the chair, which is generally carried out when the chair occupies a low position, that is to say when the second coupling members 9 occupy a position substantially parallel to the frame of the base 2, comprises the displacement of the elements 3A and 3B of the seat on the one hand and possibly, on the other hand, the relative positioning of the backrest 4 and the calf rest 5. The relative positioning of the backrest 4 and the calf rest 5 can be '' use independent motors. However, such a device can only be envisaged for relatively expensive armchairs. It is therefore necessary to provide armchair designs in which there is only one raising and lowering device consisting of a single cylinder without additional motor. In this case, the backrest 4 is connected by a connecting rod 11 to the first coupling member 8 connecting the first element 3A of the seat and the chassis 6. This connecting rod 11 allows the so-called comfort adjustment of the backrest relative to the first element 3A of the seat. Similarly, the calf rest 5 is connected on the one hand to the second element 3B of the seat by means of a connection, such as a hinged connection, on the other hand to the base 2 by a connecting member 12 fixedly mounted on the calf rest 5 and pivotally articulated on the base 2. This mounting of the calf rest allows on the one hand to retract the calf rest when the seat moves from a low position at a high position, on the other hand to authorize a comfort adjustment by positioning the calf rest substantially in the extension of the second element 3B of the seat when the seat occupies a low position so as to allow the user to occupy a substantially lying position. This adjustment is therefore carried out in a simple manner without requiring the presence of additional motors. Similarly, the second element 3B of the seat maintained directly or indirectly in generally sliding contact with the rest of the chair is automatically positioned by the displacement of the first element 3A of the seat due to the hinged connection between the first and second elements of the seat.
Enfin, ce type de fauteuil étant plus particulièrement destiné à des personnes âgées ou à des handicapés, il est parfois nécessaire de monter ces fauteuils sur roulettes. Toutefois, le montage sur roulettes de ces fauteuils peut présenter un danger lorsque l'utilisateur décide de quitter le fauteuil dont l'assise est en position haute. En effet, le fauteuil risque à ce moment là de glisser, entraînant la chute de l'utilisateur. Pour pallier ces inconvénients, il est prévu que le fauteuil comporte des accoudoirs 7 affectant sensiblement la forme d'une anse solidaire de l'embase 2 ou du châssis 6, les extrémités libres de ladite anse formant piétement étant éventuellement équipées de roulettes 10. Si ces accoudoirs 7 sont effectivement pourvus de roulettes 10, il est fait en sorte que, lors du déplacement des seconds organes d'accouplement 9 assurant le passage de l'assise de la position basse à la position haute et inversement, le fauteuil passe d'une position en appui sur les piétements des accoudoirs 7 à une position en appui sur les pieds 15 de l'embase 2 et inversement. Ainsi, comme on peut le constater dans la figure 1, lorsque l'assise occupe une position basse, le fauteuil est en appui sur les roulettes 10 disposées aux extrémités constituant le piétement des accoudoirs. Ainsi, la personne peut être poussée et donc roulée dans son fauteuil. Les pieds 15 de l'embase 2 sont dans cette position disposés légèrement au-dessus des roulettes 10 de manière à ne pas venir en appui au sol. Lors du passage de l'assise de la position basse à la position haute, une fois les premiers organes d'accouplement 8 déployés, le déploiement des seconds organes d'accouplement 9, lors de 1 •actionnement du dispositif de monte et baisse, tend à abaisser l'embase 2 de telle sorte que les pieds 15 de cette embase viennent en appui au sol tandis qu'au contraire les accoudoirs 7 solidaires du châssis 6 tendent à s'élever de telle sorte que les roulettes 10 des accoudoirs s'éloignent du sol. Le fauteuil est alors dans une position en appui sur les pieds 15 de l'embase 2. Il n'existe alors plus aucun danger que le fauteuil glisse lorsque la personne quittera son fauteuil en position haute. Bien évidemment, ce changement d'appui du fauteuil s'effectue de manière inverse lors du passage de l'assise d'une position haute à une position basse.Finally, this type of chair being more particularly intended for the elderly or the disabled, it is sometimes necessary to mount these chairs on casters. However, mounting these chairs on casters can present a danger when the user decides to leave the chair, the seat of which is in the high position. Indeed, the chair may slip at this time, causing the user to fall. To overcome these drawbacks, it provision is made for the armchair to include armrests 7 substantially affecting the shape of a handle secured to the base 2 or to the chassis 6, the free ends of said handle forming a base possibly being fitted with rollers 10. If these armrests 7 are actually provided castors 10, it is made so that, during the displacement of the second coupling members 9 ensuring the passage of the seat from the low position to the high position and vice versa, the chair passes from a position bearing on the legs of the armrests 7 at a position bearing on the feet 15 of the base 2 and vice versa. Thus, as can be seen in Figure 1, when the seat occupies a low position, the chair is supported on the casters 10 disposed at the ends constituting the base of the armrests. Thus, the person can be pushed and therefore rolled in his chair. The feet 15 of the base 2 are in this position arranged slightly above the rollers 10 so as not to come to bear on the ground. During the passage of the seat from the low position to the high position, once the first coupling members 8 deployed, the deployment of the second coupling members 9, during 1 • actuation of the device for raising and lowering, tends to lower the base 2 so that the feet 15 of this base come to rest on the ground while on the contrary the armrests 7 secured to the chassis 6 tend to rise so that the rollers 10 of the armrests move away of the ground. The chair is then in a position bearing on the feet 15 of the base 2. There is then no longer any danger of the chair sliding when the person leaves his chair in the high position. Obviously, this change of support of the chair takes place in reverse manner when the seat passes from a high position to a low position.
Les accoudoirs 7 peuvent affecter un grand nombre de formes. Ainsi, à titre d'exemple, ces accoudoirs 7 peuvent être formés d'une seule pièce avec le châssis 6 et peuvent être reliés entre eux au moyen d'une traverse. Ils peuvent être également rapportés sur le châssis 6 et montés de manière amovible sur ce dernier.The armrests 7 can have a large number of shapes. Thus, by way of example, these armrests 7 can be formed in one piece with the chassis 6 and can be interconnected by means of a cross member. They can also be attached to the chassis 6 and removably mounted on the latter.
L'habillage du fauteuil peut être réalisé au choix de l'utilisateur. Ainsi, comme le montre la figure 5, le fauteuil présente une structure toujours sensiblement identique d'un fauteuil à un autre, l'utilisateur choisissant par la suite l'habillage. The dressing of the chair can be carried out at the user's choice. Thus, as shown in FIG. 5, the chair has a structure which is always substantially identical from one chair to another, the user subsequently choosing the covering.

Claims

REVENDICATIONS
1. Fauteuil élévateur motorisé du type comprenant un bâti (1) formant piétement, un mécanisme de monte et baisse (13) 5 d'une assise mobile (3A, 3B) se déplaçant de l'arrière vers l'avant du fauteuil lors de son passage d'une position basse à une position haute, l'assise mobile étant constituée d'au moins deux éléments (3A, 3B) affectant de profil la forme d'une équerre à géométrie variable, le l() premier élément (3A) de l'assise, servant à l'appui des fessiers, étant à une extrémité solidarisé ou articulé au dossier (4) du fauteuil, et à son extrémité opposée, relié au second élément (3B) de l'assise au moyen d'une liaison (14), telle qu'une liaison à charnière, lesdits premier et1. Motorized lift chair of the type comprising a frame (1) forming a base, an up and down mechanism (13) 5 of a movable seat (3A, 3B) moving from the rear towards the front of the chair when its passage from a low position to a high position, the movable seat consisting of at least two elements (3A, 3B) affecting in profile the shape of a square with variable geometry, the l () first element (3A ) of the seat, serving to support the buttocks, being at one end secured or articulated to the backrest (4) of the chair, and at its opposite end, connected to the second element (3B) of the seat by means of a link (14), such as a hinged link, said first and
15 second éléments (3A, 3B) de l'assise étant articulés entre eux de telle sorte que, au cours de la levée de l'assise, le second élément (3B) de l'assise bascule vers le bas autour de la charnière (14) alors que le premier élément (3A) maintient par un appui fessier permanent et stable la 0 personne jusqu'à la position pratiquement debout tandis qu'au cours de la descente de l'assise le second élément (3B) de l'assise est forcé à se relever progressivement pour venir, en position basse de l'assise, reconstituer 1 'assise, 5 caractérisé en ce que le bâti (1) dudit fauteuil est constitué d'une embase (2) équipée de pieds (15), d'un châssis (6) relié par des premiers organes d'accouplement (8), tels que des bielles au premier élément (3A) de l'assise et par des seconds organes d'accouplement (9) à 0 l'embase (2), lesdits organes d'accouplement (8, 9) étant chacun déplaçables entre deux positions extrêmes sous l'action du mécanisme de monte et baisse, lesdits premiers organes d'accouplement (8) assurant essentiellement, au cours de leur déplacement, un réglage dit de confort de 5 l'assise par déplacement relatif des éléments (3A, 3B) de l'assise et éventuellement du dossier (4) et/ou d'un repose-mollets (5), lesdits seconds organes d'accouplement (9) assurant essentiellement le déplacement de l'assise d'une position basse à une position haute et inversement de manière à procurer à l'utilisateur, personnes âgées, handicapés ou autres une assistance pour le passage de la position assise à la position debout et inversement. 515 second elements (3A, 3B) of the seat being hinged together so that, during the lifting of the seat, the second element (3B) of the seat swings down around the hinge ( 14) while the first element (3A) maintains by a permanent and stable gluteal support the 0 person until the practically upright position while during the descent of the seat the second element (3B) of the seat is forced to rise gradually to come, in the low position of the seat, to reconstitute the seat, 5 characterized in that the frame (1) of said chair consists of a base (2) equipped with feet (15), a frame (6) connected by first coupling members (8), such as connecting rods to the first element (3A) of the seat and by second coupling members (9) to the base ( 2), said coupling members (8, 9) each being movable between two extreme positions under the action of the raising and lowering mechanism, lesdit s first coupling members (8) essentially ensuring, during their movement, a so-called comfort adjustment of the seat by relative movement of the elements (3A, 3B) of the seat and possibly of the backrest (4) and / or a calf rest (5), said second coupling members (9) essentially ensuring the movement of the seat from a low position to a high position and vice versa so as to provide the user, the elderly, disabled or others with assistance for the transition from the sitting position to the standing position and vice versa. 5
2. Fauteuil élévateur motorisé selon la revendication 1, caractérisé en ce que les premiers (8) et seconds (9) organes d'accouplement sont déplacés alternativement, les seconds organes d'accouplement (9) ne pouvant être déplacés2. Motorized lift chair according to claim 1, characterized in that the first (8) and second (9) coupling members are moved alternately, the second coupling members (9) cannot be moved
K) que lorsque les premiers organes d'accouplement (8) occupent une position extrême et inversement.K) only when the first coupling members (8) occupy an extreme position and vice versa.
3. Fauteuil élévateur motorisé selon l'une des revendications 1 et 2,3. Motorized lifting chair according to one of claims 1 and 2,
15 caractérisé en ce que les organes (8, 9) d'accouplement du châssis (6), d'une part au premier élément (3A) de l'assise, d'autre part à l'embase (2), sont inclinés transversalement entre un point bas avant du fauteuil et un point haut arrière du fauteuil pour former un quadrilatère, 0 de préférence un parallélogramme, déformable par actionnement du mécanisme de monte et baisse.15 characterized in that the members (8, 9) for coupling the chassis (6), on the one hand to the first element (3A) of the seat, on the other hand to the base (2), are inclined transversely between a front low point of the chair and a rear high point of the chair to form a quadrilateral, preferably a parallelogram, deformable by actuation of the up and down mechanism.
4. Fauteuil élévateur motorisé selon l'une des revendications 1 à 3, 5 caractérisé en ce que le mécanisme de monte et baisse est constitué d'un vérin (13), de préférence électrique double effet, dont une extrémité est articulée en un point stationnaire de l'embase (2) et dont l'autre extrémité est articulée sur le premier élément (3A) de l'assise où tout 0 élément solidaire en déplacement du premier élément (3A) de l'assise.4. Motorized lifting chair according to one of claims 1 to 3, 5 characterized in that the raising and lowering mechanism consists of a jack (13), preferably double acting electric, one end of which is articulated at a point stationary of the base (2) and the other end of which is articulated on the first element (3A) of the seat where all 0 elements integral with movement of the first element (3A) of the seat.
5. Fauteuil élévateur motorisé selon la revendication 4, caractérisé en ce que le vérin (13) est associé à un organe 5 de poussée, tel qu'un vérin à gaz, reliant l'assise et le châssis (6) pour aider au déplacement des premiers organes d'accouplement (8) et constituer un dispositif de fin de course lorsque l'assise (3A, 3B) est en position d'écartement maximal du châssis (6).5. Motorized lift chair according to claim 4, characterized in that the jack (13) is associated with a thrust member 5, such as a gas jack, connecting the seat and the frame (6) to assist movement of the first coupling members (8) and constitute an end of device stroke when the seat (3A, 3B) is in the position of maximum separation of the chassis (6).
6. Fauteuil élévateur motorisé selon l'une des revendications 1 à 5, caractérisé en ce qu'il comporte des accoudoirs (7) affectant sensiblement la forme d'une anse solidaire de l'embase (2) ou du châssis (6), les extrémités libres de ladite anse formant piétement étant éventuellement équipées de roulettes (10).6. Motorized lift chair according to one of claims 1 to 5, characterized in that it includes armrests (7) substantially affecting the shape of a handle secured to the base (2) or to the chassis (6), the free ends of said handle forming a base possibly being fitted with rollers (10).
7. Fauteuil élévateur motorisé selon la revendication 6, caractérisé en ce que les accoudoirs (7) sont formés d'une seule pièce avec le châssis (6) et sont reliés entre eux au moyen d'au moins une traverse.7. Motorized lift chair according to claim 6, characterized in that the armrests (7) are formed in one piece with the frame (6) and are interconnected by means of at least one cross member.
8. Fauteuil élévateur motorisé selon la revendication 6, caractérisé en ce que, lors du déplacement des seconds d'organes d'accouplement (9) assurant le passage de l'assise (3A, 3B) de la position basse à la position haute et inversement, le fauteuil passe d'une position en appui sur le piétement des accoudoirs (7) à une position en appui sur les pieds (15) de l'embase (2) et inversement.8. Motorized lift chair according to claim 6, characterized in that, during the displacement of the second coupling members (9) ensuring the passage of the seat (3A, 3B) from the low position to the high position and conversely, the chair moves from a position pressing on the base of the armrests (7) to a position pressing on the feet (15) of the base (2) and vice versa.
9. Fauteuil élévateur motorisé selon l'une des revendications 1 à 8, caractérisé en ce que le dossier (4) est relié par une bielle (11) au premier organe d'accouplement (8) reliant le premier élément (3A) de l'assise et le châssis (6).9. powered lift chair according to one of claims 1 to 8, characterized in that the backrest (4) is connected by a connecting rod (11) to the first coupling member (8) connecting the first element (3A) of the 'seat and chassis (6).
10. Fauteuil élévateur motorisé selon l'une des revendications 1 à 9, caractérisé en ce que le repose-mollets (5) est relié d'une part au second élément (3B) de l'assise au moyen d'une liaison (14), telle qu'une liaison à charnière, d'autre part, à l'embase (2) par un organe de liaison (12) monté fixe sur le repose-mollets (5) et articulé à pivotement sur 1 'embase (2) . 10. Motorized lift chair according to one of claims 1 to 9, characterized in that the calf rest (5) is connected on the one hand to the second element (3B) of the seat by means of a connection (14 ), such as a hinged connection, on the other hand, to the base (2) by a connecting member (12) fixedly mounted on the calf rest (5) and pivotally articulated on the base (2) ).
EP97902415A 1996-02-15 1997-01-31 Power chair for use as a standing aid Withdrawn EP0880348A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9601880A FR2744910B1 (en) 1996-02-15 1996-02-15 MOTORIZED LIFT ARMCHAIR
FR9601880 1996-02-15
PCT/FR1997/000191 WO1997029725A1 (en) 1996-02-15 1997-01-31 Power chair for use as a standing aid

Publications (1)

Publication Number Publication Date
EP0880348A1 true EP0880348A1 (en) 1998-12-02

Family

ID=9489232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97902415A Withdrawn EP0880348A1 (en) 1996-02-15 1997-01-31 Power chair for use as a standing aid

Country Status (4)

Country Link
EP (1) EP0880348A1 (en)
CA (1) CA2245907A1 (en)
FR (1) FR2744910B1 (en)
WO (1) WO1997029725A1 (en)

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Publication number Priority date Publication date Assignee Title
US6175973B1 (en) 1998-07-31 2001-01-23 Hill-Rom, Inc. Stand assist lift
EP1066776A1 (en) * 1999-07-08 2001-01-10 Pascal Berger Adjustable chair
CH712922B1 (en) * 2007-07-13 2018-03-15 Levo Ag Wohlen Erecting unit for raising wheelchairs and therapy devices.
US8844961B2 (en) 2010-04-27 2014-09-30 Levo Ag Wohlen Stand-up unit for stand-up wheelchairs and chairs, particularly therapy chairs
CA2912396A1 (en) 2013-05-17 2014-11-20 Dane Technologies, Inc. Devices relating to multifunctional aircraft aisle wheelchair
CA3046631C (en) * 2016-12-12 2021-10-12 Ultra-Mek, Inc. Power-assisted reclining lift chair with split seat
EP3537931B1 (en) 2017-01-26 2023-01-11 Ultra-mek, Inc. Reclining high-leg seating unit
CN112545780B (en) * 2020-12-10 2022-11-22 四川大学华西医院 Back support auxiliary standing device

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US5203610A (en) * 1990-11-14 1993-04-20 Invacare Corporation Reclining lift chair having wheels for transport
FR2712802B1 (en) * 1993-11-25 1996-01-26 Pellevoisin Roland Motorized lift chair.

Non-Patent Citations (1)

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Title
See references of WO9729725A1 *

Also Published As

Publication number Publication date
WO1997029725A1 (en) 1997-08-21
FR2744910A1 (en) 1997-08-22
FR2744910B1 (en) 1998-05-22
CA2245907A1 (en) 1997-08-21

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