EP1600134A1 - Lifting chair with demultiplication of the liftingoperation - Google Patents

Lifting chair with demultiplication of the liftingoperation Download PDF

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Publication number
EP1600134A1
EP1600134A1 EP05356092A EP05356092A EP1600134A1 EP 1600134 A1 EP1600134 A1 EP 1600134A1 EP 05356092 A EP05356092 A EP 05356092A EP 05356092 A EP05356092 A EP 05356092A EP 1600134 A1 EP1600134 A1 EP 1600134A1
Authority
EP
European Patent Office
Prior art keywords
lever
quadrilateral
pivot
articulated
articulation
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.)
Granted
Application number
EP05356092A
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German (de)
French (fr)
Other versions
EP1600134B1 (en
Inventor
Francois Xavier Laffin
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.)
Lifestand International SA
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Lifestand International SA
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Publication date
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Publication of EP1600134A1 publication Critical patent/EP1600134A1/en
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Publication of EP1600134B1 publication Critical patent/EP1600134B1/en
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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
    • 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
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/04—Wheelchair
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/10—Occupant-arising assist

Definitions

  • the present invention relates to chairs used by the disabled and invalids and is aimed, independently, at wheelchairs, whether folding or not, to manual or electric propulsion.
  • the invention relates, more particularly, to armchairs, so-called “Verticalizers", which allow the user to occupy a sitting position or a standing position.
  • Such chairs as for example described in the patent FR 2 769 830, comprise a frame supporting an articulated structure which includes a seat, footrest, backrest and two articulated systems symmetrical lateral ensuring a function of verticalization-lowering of the seat, backrest and footrest, to allow the passage of a wheelchair user from a sitting position to a standing position.
  • each lateral articulated system comprises a first polygon or deformable quadrilateral contributing to the support of the seat, composed of two bars, respectively upper and lower, hinged on an anterior portion of the frame and linked to their rear part by a spacer.
  • Each lateral articulated system also includes a second polygon or deformable quadrilateral contributing to the support of the footrest, as well as a frame articulated back on the first quadrilateral, opposite the second quadrilateral, by through the spacer at least.
  • Each articulated lateral system comprises, finally, a maneuvering assembly, interposed between the first quadrilateral and the chassis which comprises, on the one hand, a first articulated lever on the rear part of the chassis and at the end of a second lever whose other end is articulated on the first quadrilateral, as well as a operating handle integral with the second lever.
  • the maneuvering handle assumes a function for controlling and controlling the relative pivoting of the lateral system from a lowering position to a verticalization position of the structure by compared to the chassis and vice versa.
  • the maneuvering set includes, on the other hand, a support vertical-lowering movement, such as, for example, a spring pneumatic.
  • a support vertical-lowering movement such as, for example, a spring pneumatic.
  • the operating handle offers a "U" shaped grip zone open at its center, presenting two branches connected by a soul, each offering a backrest for the palm of a user's hand.
  • Such a standing chair gives complete satisfaction with regard to its verticalization-lowering function of its user who is able to to move from a sitting position to a standing position without further assistance, whether human or mechanical, that provided by the air spring.
  • the upright chair is characterized in that, for each maneuvering assembly, the operating handle is articulated, on the one hand, on the second lever and / or the first lever and, on the other hand, on the first quadrilateral by via a connecting rod whose first end is connected by a pivot to the first quadrilateral and the second end is linked by a pivot to the handle of maneuver.
  • This articulation of the handle thus provides a very advantageous way of significant reduction of its movement compared to the movement of a handful which would be fixed without articulation to the second lever. Moreover, this multiplication of the movement of the handle allows it to be placed in a position compatible with different seat depths so that a same chair structure can be implemented for users of different sizes.
  • the distance of the two pivots of the link is chosen for adjust the range of motion of the operating handle as much as possible.
  • the operating handle can be articulated into different places of the set formed by the first and second levers.
  • the handle is articulated on the assembly formed by the first lever and the second lever at the pivot of link between the first and the second lever.
  • the chair comprises according to another feature of the invention a assisting member of the verticalization-lowering movement such as example but not exclusively a cylinder or gas spring to change state.
  • a assisting member of the verticalization-lowering movement such as example but not exclusively a cylinder or gas spring to change state.
  • the axis articulation of the link pivot between the link and the first quadrilateral is located, in the sitting position of the chair above a straight line passing through, on the one hand, the pivot articulation of the handle on the first and / or second lever and, on the other hand, the articulation pivot of the link on the handle.
  • the axis of the pivot pivot of the second lever on the first quadrilateral is, in sitting position of the chair, located below a straight line passing through, on the one hand, the articulation pivot between the first and second levers and, on the other hand, the pivot articulation of the first lever on the rear part of the chassis.
  • the axis of articulation of the connecting pivot between the first and the second levers is, in vertical position of the chair, located above a straight line by, on the one hand, the hinge pivot of the first lever on the rear part of the chassis and, secondly, the hinge pivot of the second lever on the first quadrilateral.
  • the axes of articulation of the pivots of the handle are, in a vertical position of the chair, located on either side of the right passing through, on the one hand, the articulation pivot of the first lever on the rear part of the chassis and, secondly, the pivot pivot of the second lever on the first quadrilateral.
  • the aim of the invention is to reduce as far as possible the amplitude of the movements required to implement the verticalization function of a wheelchair, as illustrated in FIGS. 1 to 3, while providing a very high security to this verticalization function.
  • a standing chair 1 comprises a frame 2, consisting of side half-frames 3 and 4, joined together by cross members 5 and 6, and a cross member, not shown, connecting the wheels. These various constituent elements define a carrying frame provided with drive wheels 10 and steerable steerable wheels 11.
  • the frame 2 corresponds to a chair of rigid design, but it is obvious that a substantially similar conformation could be retained for a folding chair. Indeed, in such a case, the rigid sleepers 5 and 6 are then replaced by folding elements of known design.
  • the chassis 2, described above, is equipped with a verticalizer device which is designed as an articulated structure 12 carried by the chassis 2.
  • the articulated structure 12 is constituted by two lateral articulated systems, symmetrical with respect to a sagittal plane P and which are more particularly visible in FIGS. 2 and 3.
  • Each articulated system 13 is intended to be fitted laterally on the frame 2, for example at each of the half-frames 3 and 4.
  • Each articulated system 13 comprises a first deformable polygon and, according to the example, deformable quadrilateral 17 consisting of two bars 18 and 19, respectively said upper and lower, although they are not arranged, in the representation illustrated in FIG. 3, in the same vertical plane.
  • the bars 18 and 19 are joined, by their posterior terminal part, by an element or a spacer 20 and are mounted on the frame 2, close to the front part of the latter, by a first pivot point 21 on the upper bar 18 and a second hinge point 22 on the lower bar 19.
  • the hinge point 21 is provided in the upper part of the corresponding half-frame 3, 4 while the point of articulation 22 is located on this same half-frame behind and below the hinge point 21.
  • the distance of the articulation points 23, 24 of the bars 18, 19 on the spacer element 20 is provided to correspond to the distance separating the articulation points 21 and 22, so that the quadrilateral 17 has the preferred form of a deformable parallelogram, without such a shape being considered strictly necessary for the production of a chair according to the invention.
  • Each articulated system 13 further comprises a second deformable polygon and, in this case, deformable quadrilateral 26, shown diagrammatically in FIG. 2 in phantom, connecting the first deformable quadrilateral to a jamb or upright 27 for supporting, alone or in combination with the leg or homologous amount, a footrest 33.
  • deformable quadrilateral 26 shown diagrammatically in FIG. 2 in phantom, connecting the first deformable quadrilateral to a jamb or upright 27 for supporting, alone or in combination with the leg or homologous amount, a footrest 33.
  • Each articulated system 13 comprises, finally, a backrest frame comprising two uprights 35, each articulated on the first quadrilateral 13, opposite the second quadrilateral 26, via the spacer 20.
  • the file 35 amounts are, moreover, connected by a cross member 36.
  • each articulated system comprises an operating assembly 40, interposed between the first quadrilateral 17 and the frame 2 and, more particularly, the corresponding half-frame 34 .
  • Each operating assembly 40 comprises a first lever 41, articulated on the rear part of the chassis, via a pivot 42 and, at the end of a second lever 43, via a pivot 44 .
  • the other end of the second lever 43 is then articulated on the first quadrilateral and, according to the example shown, the bottom bar 19 via a pivot 45.
  • Each maneuvering assembly also comprises an operating handle 49 which could be described as a multi-socket, to the extent that it must allow the user of the chair to apply a force on this handle, both in the context of the lowering position or seating illustrated in FIG. 2, that in the context of the vertical position illustrated in FIG. 3 and during the transition phase or vertical-lowering movement.
  • an operating handle 49 which could be described as a multi-socket, to the extent that it must allow the user of the chair to apply a force on this handle, both in the context of the lowering position or seating illustrated in FIG. 2, that in the context of the vertical position illustrated in FIG. 3 and during the transition phase or vertical-lowering movement.
  • each multi-grip handle comprises, as shown more particularly in FIGS. 3 and 4, a handle body 50, equipped with a grip bar 51 in "U", open at its center 52.
  • a handle body 50 equipped with a grip bar 51 in "U", open at its center 52.
  • grip bar 51 in "U"
  • the handle 49 and, according to the illustrated example, more precisely the handle body 50 is articulated both on the first quadrilateral 17 and on the compass or the assembly consisting of the first 41 and second 43 levers.
  • the handle is then articulated on the first deformable quadrilateral 17, and according to the example on the lower arm 19 by means of a rod 55 which is connected by a pivot 56 to a part 57 secured to the lower arm 19.
  • the link 55 is further articulated on the handle 49 and more precisely on the handle body 50 by a pivot 58.
  • the handle 49 is then connected to the two levers 41, 43 by the pivot 44 which then ensures the dual function of articulation of said levers between them and the handle relative to these levers.
  • Such articulation of the handle makes it very advantageous to reduce the amplitude of the displacement of the handle 49 during the vertical movement, namely the passage from the seated position fig. 2 in the standing or standing position fig. 3. It should be noted that the distance between the pivots 56 and 58 is chosen in order to better adjust the range of movement of the handle.
  • the uprighting armchair 1 also comprises assistance means 65.
  • these assistance means are constituted, for each of the articulated systems, by a spring gas, interposed between the piece 57 fixed to the amount of the first quadrilateral 17 and the front portion of the frame 2.
  • gas springs 65 effectively makes it possible, on the one hand, to reduce substantially the force required for verticalization and, on the other hand, to slow the lowering movement thus providing a great feeling of safety to the user. 'user.
  • the articulation of the levers 41, 43 is preferably designed to allow automatic locking of this position.
  • the axis of the articulation pivot 45 of the second lever 43 on the first quadrilateral 17 is, in the seating position of the chair, situated below a straight line ⁇ by, on the one hand, the axis of the hinge pin 44 between the first 41 and second 43 levers and, secondly, the axis of the hinge pivot 42 of the first lever 41 on the rear part of the frame 2.
  • the first locking provided by the articulation of the levers 41, 43, could, in a preferred embodiment, be reinforced by an automatic locking of the articulated handle 49 in the seated position. of the armchair.
  • the axis of the pivot 56 of articulation of the rod 55 on the first quadrilateral 17, and here the lower arm 19 is located in the seating position of the chair above a straight line ⁇ ' passing through, on the one hand, the axis of the hinge pin 44 of the handle on the first 41 and second 43 levers and, secondly, the axis of the pivot 58 connecting the handle 49 and the connecting rod 55, it is obtained an automatic locking effect.
  • This preferred embodiment of the chair according to the invention with a double automatic locking of the sitting position, has the advantage of offering a very high security of use of the wheelchair by preventing inadvertent tripping of verticalization and this without any additional brake system that would come weigh down the chair. It must be emphasized that, according to the invention, the unlocking of the sitting position is performed as part of the winding motion of the verticalizer, so that the user has no particular maneuver to perform before its verticalization.
  • this locking is obtained by the configuration adopted for the levers 41, 43. Indeed, there is locking when the axis of articulation of the pivot 44 connecting the first 41 and second 43 levers is, in the upright position of the chair fig. 3, located above a straight line ⁇ "passing through, on the one hand, the hinge pin 42 of the first lever 41 on the rear part of the frame 2 and, on the other hand, the hinge pin 45 of the second lever 43 on the first quadrilateral 17 and here the lower arm 19.
  • the weight of the user is sufficient to accentuate the locking position, so that it is not necessary to maintain a pressure on the handles, the user can then devote himself to activities normal with its upper limbs.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Soil Working Implements (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Handcart (AREA)
  • Finger-Pressure Massage (AREA)
  • Chairs Characterized By Structure (AREA)
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  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
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Abstract

The wheelchair has a maneuvering assembly (40) with a lever (41) articulated on a rear part of a chassis (2) and to an end of a lever (43) whose another end is articulated on a deformable quadrilateral. The assembly has a push handle (49) articulated on the levers and on the quadrilateral through an articulated rod (55) whose two ends are connected to the quadrilateral and to the handle by respective pivots.

Description

La présente invention concerne les fauteuils utilisés par les handicapés et les invalides et elle vise, indépendamment, les fauteuils roulants, pliants ou non, à propulsion manuelle ou électrique.The present invention relates to chairs used by the disabled and invalids and is aimed, independently, at wheelchairs, whether folding or not, to manual or electric propulsion.

L'invention concerne, plus particulièrement, les fauteuils, dits « verticalisateurs », qui permettent à leur utilisateur d'occuper une position assise ou une position debout. De tels fauteuils, comme par exemple décrits dans le brevet FR 2 769 830, comprennent un châssis supportant une structure articulée qui comprend une assise, un repose-pied, un dossier, ainsi que deux systèmes articulés symétriques latéraux assurant une fonction de verticalisation-abaissement de l'assise, du dossier et du repose-pied, afin de permettre le passage d'un utilisateur du fauteuil d'une position assise à une position debout.The invention relates, more particularly, to armchairs, so-called "Verticalizers", which allow the user to occupy a sitting position or a standing position. Such chairs, as for example described in the patent FR 2 769 830, comprise a frame supporting an articulated structure which includes a seat, footrest, backrest and two articulated systems symmetrical lateral ensuring a function of verticalization-lowering of the seat, backrest and footrest, to allow the passage of a wheelchair user from a sitting position to a standing position.

A cette fin, chaque système articulé latéral comprend un premier polygone ou quadrilatère déformable contribuant au support de l'assise, composé de deux barres, respectivement supérieure et inférieure, articulées sur une partie antérieure du châssis et liées, vers leur partie arrière, par une pièce d'écartement.To this end, each lateral articulated system comprises a first polygon or deformable quadrilateral contributing to the support of the seat, composed of two bars, respectively upper and lower, hinged on an anterior portion of the frame and linked to their rear part by a spacer.

Chaque système articulé latéral comprend, également, un second polygone ou quadrilatère déformable contribuant au support du repose-pied, ainsi qu'une armature de dossier articulé sur le premier quadrilatère, à l'opposé du second quadrilatère, par l'intermédiaire de la pièce d'écartement au moins.Each lateral articulated system also includes a second polygon or deformable quadrilateral contributing to the support of the footrest, as well as a frame articulated back on the first quadrilateral, opposite the second quadrilateral, by through the spacer at least.

Chaque système latéral articulé comprend, enfin, un ensemble de manoeuvre, interposé entre le premier quadrilatère et le châssis qui comprend, d'une part, un premier levier articulé sur la partie arrière du châssis et à l'extrémité d'un second levier dont l'autre extrémité est articulée sur le premier quadrilatère, ainsi qu'une poignée de manoeuvre solidaire du second levier. La poignée de manoeuvre assume une fonction de commande et de contrôle du pivotement relatif du système latéral d'une position d'abaissement à une position de verticalisation de la structure par rapport au châssis et inversement.Each articulated lateral system comprises, finally, a maneuvering assembly, interposed between the first quadrilateral and the chassis which comprises, on the one hand, a first articulated lever on the rear part of the chassis and at the end of a second lever whose other end is articulated on the first quadrilateral, as well as a operating handle integral with the second lever. The maneuvering handle assumes a function for controlling and controlling the relative pivoting of the lateral system from a lowering position to a verticalization position of the structure by compared to the chassis and vice versa.

L'ensemble de manoeuvre comprend, d'autre part, un organe d'assistance au mouvement de verticalisation-abaissement, tel que, par exemple, un ressort pneumatique. Afin de permettre sa préhension aisée, quelle que soit la position de la structure articulée, la poignée de manoeuvre offre une zone de préhension en « U » ouverte en son centre, présentant deux branches reliées par une âme, offrant chacune un dos d'appui pour la paume d'une main d'un utilisateur.The maneuvering set includes, on the other hand, a support vertical-lowering movement, such as, for example, a spring pneumatic. In order to allow it to be easily grasped, whatever the position of the articulated structure, the operating handle offers a "U" shaped grip zone open at its center, presenting two branches connected by a soul, each offering a backrest for the palm of a user's hand.

Un tel fauteuil verticalisateur donne entière satisfaction en ce qui concerne sa fonction de verticalisation-abaissement de son utilisateur qui se trouve en mesure de passer d'une position assise à une station debout sans autre assistance, humaine ou mécanique, que celle fournie par le ressort pneumatique.Such a standing chair gives complete satisfaction with regard to its verticalization-lowering function of its user who is able to to move from a sitting position to a standing position without further assistance, whether human or mechanical, that provided by the air spring.

Toutefois, malgré la satisfaction apportée par la grande facilité de passage aux deux positions debout et assise, il est apparu nécessaire, afin de renforcer le confort de l'utilisateur, de démultiplier le mouvement de la poignée afin d'en réduire l'amplitude de manière que la poignée reste toujours proche de l'utilisateur et lui permettant de développer au mieux son effort lors du mouvement de verticalisation qui correspond au mouvement d'enroulement des mains lors du roulage manuel du fauteuil.However, despite the satisfaction brought by the great ease of two standing and sitting positions, it appeared necessary, to enhance comfort of the user, to multiply the movement of the handle to reduce the amplitude so that the handle always remains close to the user and him to develop the best effort during the vertical movement which corresponds to the winding movement of the hands during the manual armchair.

Afin de répondre à ce besoin de confort, l'invention concerne un fauteuil verticalisateur pour handicapés et invalides, comprenant un châssis supportant une structure articulée qui comprend, une assise un repose-pied, un dossier, ainsi que deux systèmes articulés symétriques latéraux comprenant chacun :

  • un premier polygone ou quadrilatère déformable contribuant au support de l'assise, composé de deux barres, respectivement supérieure et inférieure, articulées sur la partie antérieure du châssis et liées vers leurs parties arrière par une pièce d'écartement,
  • un second polygone ou quadrilatère déformable, contribuant au support du repose-pied,
  • une armature de dossier articulée sur le premier quadrilatère, à l'opposé du second quadrilatère, par l'intermédiaire de la pièce d'écartement au moins,
  • et un ensemble de manoeuvre, interposé entre le premier quadrilatère et le châssis, qui comprend un premier levier articulé sur la partie arrière du châssis et, à l'extrémité d'un second levier dont l'autre extrémité est articulée sur le premier quadrilatère, ainsi qu'une poignée de manoeuvre qui assume une fonction de commande et de contrôle du pivotement relatif des systèmes latéraux, d'une position d'abaissement à une position de verticalisation de la structure par rapport au châssis et inversement.
In order to meet this need for comfort, the invention relates to a chair lift for disabled and disabled, comprising a frame supporting an articulated structure which comprises, a seat a footrest, a backrest, and two lateral symmetrical articulated systems each comprising :
  • a first deformable polygon or quadrilateral contributing to the support of the seat, composed of two bars, respectively upper and lower, articulated on the front part of the frame and linked to their rear parts by a spacer,
  • a second deformable polygon or quadrilateral, contributing to the support of the footrest,
  • a backrest frame hinged to the first quadrilateral, opposite the second quadrilateral, via the spacer at least,
  • and a maneuvering assembly, interposed between the first quadrilateral and the chassis, which comprises a first lever articulated on the rear part of the chassis and, at the end of a second lever whose other end is articulated on the first quadrilateral, and an operating handle which assumes a control function and control of the relative pivoting of the lateral systems, a lowering position to a vertical position of the structure relative to the chassis and vice versa.

Selon l'invention le fauteuil verticalisateur est caractérisé en ce en ce que, pour chaque ensemble de manoeuvre, la poignée de manoeuvre est articulée, d'une part, sur le second levier et/ou le premier levier et, d'autre part, sur le premier quadrilatère par l'intermédiaire d'une biellette dont une première extrémité est liée par un pivot au premier quadrilatère et la seconde extrémité est liée par un pivot à la poignée de manoeuvre.According to the invention the upright chair is characterized in that, for each maneuvering assembly, the operating handle is articulated, on the one hand, on the second lever and / or the first lever and, on the other hand, on the first quadrilateral by via a connecting rod whose first end is connected by a pivot to the first quadrilateral and the second end is linked by a pivot to the handle of maneuver.

Cette articulation de la poignée assure ainsi de manière fort avantageuse une réduction importante de son mouvement part rapport au mouvement d'une poignée qui serait fixée sans articulation au second levier. De plus, cette démultiplication du mouvement de la poignée permet de la placer à une position compatible avec différentes profondeurs d'assises de sorte qu'une même structure de fauteuil peut être mise en oeuvre pour des utilisateurs de différentes tailles.This articulation of the handle thus provides a very advantageous way of significant reduction of its movement compared to the movement of a handful which would be fixed without articulation to the second lever. Moreover, this multiplication of the movement of the handle allows it to be placed in a position compatible with different seat depths so that a same chair structure can be implemented for users of different sizes.

Avantageusement, la distance des deux pivots de la biellette est choisie pour ajuster au mieux l'amplitude du mouvement de la poignée de manoeuvre.Advantageously, the distance of the two pivots of the link is chosen for adjust the range of motion of the operating handle as much as possible.

Selon l'invention la poignée de manoeuvre peut être articulée en différents endroits de l'ensemble formé par les premier et second leviers. Dans une forme préférée mais exclusive de réalisation, la poignée de manoeuvre est articulée sur l'ensemble formé par le premier levier et le second levier au niveau du pivot de liaison entre le premier et le second levier.According to the invention the operating handle can be articulated into different places of the set formed by the first and second levers. In a form preferred but exclusive embodiment, the handle is articulated on the assembly formed by the first lever and the second lever at the pivot of link between the first and the second lever.

Afin de soulager encore l'utilisateur dans la mise oeuvre du mouvement de verticalisation, le fauteuil comprend selon une autre caractéristique de l'invention un organe d'assistance du mouvement de verticalisation-abaissement tel que par exemple mais non exclusivement un vérin ou ressort à gaz à changement d'état.In order to further ease the user in the implementation of the movement of verticalization, the chair comprises according to another feature of the invention a assisting member of the verticalization-lowering movement such as example but not exclusively a cylinder or gas spring to change state.

Dans une forme préférée mais non exclusive de réalisation, afin d'assurer un verrouillage automatique de la structure articulée en position assise, l'axe d'articulation du pivot de liaison entre la biellette et le premier quadrilatère est situé, en position assise du fauteuil au dessus d'une droite passant par, d'une part, le pivot d'articulation de la poignée sur le premier et/ou le second levier et, d'autre part, le pivot d'articulation de la biellette sur la poignée. Cette caractéristique avantageuse de l'invention garantit l'utilisateur du fauteuil contre un déclenchement intempestif du mouvement de verticalisation sous l'effet du vérin à gaz.In a preferred but non-exclusive embodiment, to ensure a automatic locking of the articulated structure in a sitting position, the axis articulation of the link pivot between the link and the first quadrilateral is located, in the sitting position of the chair above a straight line passing through, on the one hand, the pivot articulation of the handle on the first and / or second lever and, on the other hand, the articulation pivot of the link on the handle. This advantageous characteristic of the invention guarantees the user of the chair against inadvertent activation of the vertical movement under the effect of the gas cylinder.

Dans le même sens, selon une autre caractéristique de l'invention et afin d'assurer un verrouillage automatique de la structure articulée en position assise, l'axe du pivot d'articulation du second levier sur le premier quadrilatère est, en position assise du fauteuil, situé en dessous d'une droite passant par, d'une part, le pivot d'articulation entre le premier et le second leviers et, d'autre part, le pivot d'articulation du premier levier sur la partie arrière du châssis.In the same sense, according to another characteristic of the invention and to ensure automatic locking of the articulated structure in a sitting position, the axis of the pivot pivot of the second lever on the first quadrilateral is, in sitting position of the chair, located below a straight line passing through, on the one hand, the articulation pivot between the first and second levers and, on the other hand, the pivot articulation of the first lever on the rear part of the chassis.

De la même manière, il peut apparaítre avantageux de garantir l'utilisateur en position verticalisée contre un déclenchement intempestif du mouvement de retour à la position assise. A cet effet, afin d'assurer un verrouillage automatique de la structure articulée en position verticalisée et selon une autre caractéristique de l'invention, l'axe d'articulation du pivot de liaison entre le premier et le second leviers est, en position verticalisée du fauteuil, situé au dessus d'une droite passant par, d'une part, le pivot d'articulation du premier levier sur la partie arrière du châssis et, d'autre part, le pivot d'articulation du second levier sur le premier quadrilatère.In the same way, it may seem advantageous to guarantee the user vertical position against inadvertent tripping of the movement back to the sitting position. For this purpose, in order to ensure automatic locking of articulated structure in a vertical position and according to another characteristic of the invention, the axis of articulation of the connecting pivot between the first and the second levers is, in vertical position of the chair, located above a straight line by, on the one hand, the hinge pivot of the first lever on the rear part of the chassis and, secondly, the hinge pivot of the second lever on the first quadrilateral.

Dans le même objectif visant à assurer un verrouillage automatique de la structure articulée en position verticalisée, les axes d'articulation des pivots de la poignée sont, en position verticalisée du fauteuil, situés de part et d'autre de la droite passant par, d'une part, le pivot d'articulation du premier levier sur la partie arrière du châssis et, d'autre part, le pivot d'articulation du second levier sur le premier quadrilatère.For the same purpose, to ensure automatic locking of articulated structure in a vertical position, the axes of articulation of the pivots of the handle are, in a vertical position of the chair, located on either side of the right passing through, on the one hand, the articulation pivot of the first lever on the rear part of the chassis and, secondly, the pivot pivot of the second lever on the first quadrilateral.

Diverses autres caractéristiques de l'invention ressortent de la description ci-dessous effectuée en relation avec les dessins annexés qui montrent une forme préférée, non limitative, de réalisation d'un fauteuil verticalisateur pour handicapés ou invalides comprenant une poignée à position réglable conforme à l'invention.

  • La fig. 1 est une perspective d'un fauteuil verticalisateur roulant selon l'invention.
  • La fig. 2 est une élévation, en vue de gauche et sans la roue gauche du fauteuil illustré à la fig. 1, en position assise ou d'abaissement du fauteuil.
  • La fig. 3 est une élévation, analogue à la fig. 2, du fauteuil en position de verticalisation ou debout.
  • La fig. 4 est une vue de détail agrandie de la fig. 2.
    • Various other features of the invention will emerge from the following description made with reference to the accompanying drawings which show a preferred, non-limiting embodiment of a chair lift for disabled or disabled comprising a handle with adjustable position in accordance with the invention. 'invention.
  • Fig. 1 is a perspective of a wheelchair standing according to the invention.
  • Fig. 2 is an elevation, in left view and without the left wheel of the chair illustrated in FIG. 1 , in sitting or lowering position of the chair.
  • Fig. 3 is an elevation, similar to FIG. 2 , the chair in a standing position or standing.
  • Fig. 4 is an enlarged detail view of FIG. 2.

    • L'invention vise à réduire autant que faire se peut l'amplitude des mouvements nécessaires à la mise en oeuvre de la fonction de verticalisation d'un fauteuil verticalisateur roulant, tel qu'illustré aux fig. 1 à 3, tout en apportant une très grande sécurité à cette fonction de verticalisation.The aim of the invention is to reduce as far as possible the amplitude of the movements required to implement the verticalization function of a wheelchair, as illustrated in FIGS. 1 to 3, while providing a very high security to this verticalization function.

    Un fauteuil verticalisateur 1 comprend un châssis 2, composé de demi-châssis latéraux 3 et 4, réunis entre eux par des traverses 5 et 6, ainsi qu'une traverse, non représentée, reliant les roues. Ces différents éléments constitutifs définissent une armature porteuse pourvue de roues motrices 10 et de roues directrices orientables 11. A standing chair 1 comprises a frame 2, consisting of side half-frames 3 and 4, joined together by cross members 5 and 6, and a cross member, not shown, connecting the wheels. These various constituent elements define a carrying frame provided with drive wheels 10 and steerable steerable wheels 11.

    Tel qu'illustré, le châssis 2 correspond à un fauteuil de conception rigide, mais il est bien évident qu'une conformation sensiblement analogue pourrait être retenue pour un fauteuil repliable. En effet, dans un tel cas, les traverses rigides 5 et 6 sont alors remplacées par des éléments pliants de conception connue en soi.As illustrated, the frame 2 corresponds to a chair of rigid design, but it is obvious that a substantially similar conformation could be retained for a folding chair. Indeed, in such a case, the rigid sleepers 5 and 6 are then replaced by folding elements of known design.

    Le châssis 2, décrit ci-dessus, est équipé d'un dispositif verticalisateur qui est réalisé sous la forme d'une structure articulée 12 portée par le châssis 2. La structure articulée 12 est constituée par deux systèmes articulés latéraux, symétriques par rapport à un plan sagittal P et qui sont plus particulièrement visibles aux fig. 2 et 3. Chaque système articulé 13 est destiné à être adapté latéralement sur le châssis 2, par exemple au niveau de chacun des demi-châssis 3 et 4. The chassis 2, described above, is equipped with a verticalizer device which is designed as an articulated structure 12 carried by the chassis 2. The articulated structure 12 is constituted by two lateral articulated systems, symmetrical with respect to a sagittal plane P and which are more particularly visible in FIGS. 2 and 3. Each articulated system 13 is intended to be fitted laterally on the frame 2, for example at each of the half-frames 3 and 4.

    Chaque système 13 articulé comprend un premier polygone déformable et, selon l'exemple, quadrilatère déformable 17 constitué de deux barres 18 et 19, respectivement dite supérieure et inférieure, bien qu'elles ne soient pas disposées, dans la représentation illustrée fig. 3, dans un même plan vertical. Les barres 18 et 19 sont réunies, par leur partie terminale postérieure, par un élément ou une pièce d'écartement 20 et sont montées sur le châssis 2, à proximité de la partie frontale de ce dernier, par un premier point d'articulation 21 concernant la barre supérieure 18 et par un second point d'articulation 22 concernant la barre inférieure 19. Dans le cas présent, le point d'articulation 21 est prévu en partie supérieure du demi-châssis correspondant 3, 4 alors que le point d'articulation 22 est situé sur ce même demi-châssis en arrière et dessous le point d'articulation 21. Each articulated system 13 comprises a first deformable polygon and, according to the example, deformable quadrilateral 17 consisting of two bars 18 and 19, respectively said upper and lower, although they are not arranged, in the representation illustrated in FIG. 3, in the same vertical plane. The bars 18 and 19 are joined, by their posterior terminal part, by an element or a spacer 20 and are mounted on the frame 2, close to the front part of the latter, by a first pivot point 21 on the upper bar 18 and a second hinge point 22 on the lower bar 19. In this case, the hinge point 21 is provided in the upper part of the corresponding half-frame 3, 4 while the point of articulation 22 is located on this same half-frame behind and below the hinge point 21.

    Dans l'exemple illustré, la distance des points d'articulation 23, 24 des barres 18, 19 sur l'élément d'écartement 20 est prévue pour correspondre à la distance séparant les points d'articulation 21 et 22, de sorte que le quadrilatère 17 présente la forme privilégiée d'un parallélogramme déformable, sans qu'une telle forme puisse être considérée comme strictement nécessaire à la réalisation d'un fauteuil selon l'invention.In the illustrated example, the distance of the articulation points 23, 24 of the bars 18, 19 on the spacer element 20 is provided to correspond to the distance separating the articulation points 21 and 22, so that the quadrilateral 17 has the preferred form of a deformable parallelogram, without such a shape being considered strictly necessary for the production of a chair according to the invention.

    Chaque système articulé 13 comprend, en outre, un second polygone déformable et, en l'espèce, quadrilatère déformable 26, schématisé à la fig. 2 en traits mixtes, reliant le premier quadrilatère déformable à un jambage ou montant 27 destiné à supporter, seul ou en combinaison avec le jambage ou montant homologue, un repose-pied 33. Each articulated system 13 further comprises a second deformable polygon and, in this case, deformable quadrilateral 26, shown diagrammatically in FIG. 2 in phantom, connecting the first deformable quadrilateral to a jamb or upright 27 for supporting, alone or in combination with the leg or homologous amount, a footrest 33.

    Chaque système articulé 13 comprend, enfin, une armature de dossier comprenant deux montants 35, chacun articulé sur le premier quadrilatère 13, à l'opposé du second quadrilatère 26, par l'intermédiaire de la pièce d'écartement 20. Selon l'exemple illustré, les montants 35 de dossier sont, par ailleurs, reliés par une traverse 36. Each articulated system 13 comprises, finally, a backrest frame comprising two uprights 35, each articulated on the first quadrilateral 13, opposite the second quadrilateral 26, via the spacer 20. According to the example illustrated, the file 35 amounts are, moreover, connected by a cross member 36.

    Afin de permettre un passage de la structure articulée 12 de la position d'abaissement ou assise, telle qu'illustrée à la fig. 2, à la position de verticalisation ou debout, telle qu'illustrée à la fig. 3, chaque système articulé comprend un ensemble de manoeuvre 40, interposé entre le premier quadrilatère 17 et le châssis 2 et, plus particulièrement, le demi-châssis 34 correspondant.In order to allow passage of the articulated structure 12 of the lowering or sitting position, as illustrated in FIG. 2, in the standing or standing position, as illustrated in FIG. 3, each articulated system comprises an operating assembly 40, interposed between the first quadrilateral 17 and the frame 2 and, more particularly, the corresponding half-frame 34 .

    Chaque ensemble de manoeuvre 40 comprend un premier levier 41, articulé sur la partie arrière du châssis, par l'intermédiaire d'un pivot 42 et, à l'extrémité d'un second levier 43, par l'intermédiaire d'un pivot 44. L'autre extrémité du second levier 43 est alors articulée sur le premier quadrilatère et, selon l'exemple illustré, sur la barre inférieure 19, par l'intermédiaire d'un pivot 45. Each operating assembly 40 comprises a first lever 41, articulated on the rear part of the chassis, via a pivot 42 and, at the end of a second lever 43, via a pivot 44 . the other end of the second lever 43 is then articulated on the first quadrilateral and, according to the example shown, the bottom bar 19 via a pivot 45.

    Chaque ensemble de manoeuvre comprend, également, une poignée de manoeuvre 49 qui pourrait être qualifiée de multiprises, dans la mesure où elle doit permettre, à l'utilisateur du fauteuil, d'appliquer un effort sur cette poignée, tant dans le cadre de la position d'abaissement ou assise illustrée à la fig. 2, que dans le cadre de la position de verticalisation illustrée à la fig. 3 et pendant la phase de transition ou mouvement de verticalisation-abaissement.Each maneuvering assembly also comprises an operating handle 49 which could be described as a multi-socket, to the extent that it must allow the user of the chair to apply a force on this handle, both in the context of the lowering position or seating illustrated in FIG. 2, that in the context of the vertical position illustrated in FIG. 3 and during the transition phase or vertical-lowering movement.

    A cet effet, chaque poignée multiprises comprend, comme le montrent plus particulièrement les fig. 3 et 4, un corps de poignée 50, équipé d'un arceau de préhension 51 en « U », ouvert en son centre 52. Compte tenu de ce mode de réalisation de la poignée, il est possible de modifier la forme générale de l'arceau de préhension en fonction des besoins de l'utilisateur et cela sans affecter la conception générale du fauteuil.For this purpose, each multi-grip handle comprises, as shown more particularly in FIGS. 3 and 4, a handle body 50, equipped with a grip bar 51 in "U", open at its center 52. In view of this embodiment of the handle, it is possible to change the general shape of the handle. gripping bar according to the needs of the user and without affecting the general design of the chair.

    Selon une caractéristique essentielle de l'invention, la poignée 49 et, selon l'exemple illustré, plus précisément le corps de poignée 50 est articulé à la fois sur le premier quadrilatère 17 et sur le compas ou l'ensemble constitué des premier 41 et second 43 leviers.According to an essential characteristic of the invention, the handle 49 and, according to the illustrated example, more precisely the handle body 50 is articulated both on the first quadrilateral 17 and on the compass or the assembly consisting of the first 41 and second 43 levers.

    La poignée est alors articulée sur le premier quadrilatère déformable 17, et selon l'exemple sur le bras inférieur 19 par l'intermédiaire d'une biellette 55 qui est liée par un pivot 56 à une pièce 57 solidaire du bras inférieur 19. La biellette 55 est en outre articulée sur la poignée 49 et plus précisément sur le corps de poignée 50 par un pivot 58. The handle is then articulated on the first deformable quadrilateral 17, and according to the example on the lower arm 19 by means of a rod 55 which is connected by a pivot 56 to a part 57 secured to the lower arm 19. The link 55 is further articulated on the handle 49 and more precisely on the handle body 50 by a pivot 58.

    Dans une forme préférée de réalisation, la poignée 49 est alors reliée aux deux leviers 41, 43 par le pivot 44 qui assure alors la double fonction d'articulation desdits leviers entre eux et de la poignée par rapport à ces mêmes leviers.In a preferred embodiment, the handle 49 is then connected to the two levers 41, 43 by the pivot 44 which then ensures the dual function of articulation of said levers between them and the handle relative to these levers.

    Une telle articulation de la poignée permet de manière fort avantageuse de réduire l'amplitude du déplacement de la poignée 49 lors du mouvement de verticalisation à savoir le passage de la position assise fig. 2 à la position debout ou verticalisée fig. 3. Il est à noter que la distance ente les pivots 56 et 58 est choisie afin d'ajuster au mieux l'amplitude du mouvement de la poignée.Such articulation of the handle makes it very advantageous to reduce the amplitude of the displacement of the handle 49 during the vertical movement, namely the passage from the seated position fig. 2 in the standing or standing position fig. 3. It should be noted that the distance between the pivots 56 and 58 is chosen in order to better adjust the range of movement of the handle.

    Toutefois, afin de faciliter les mouvements de verticalisation et d'abaissement, le fauteuil verticalisateur 1 comprend, également, des moyens d'assistance 65. Selon cet exemple, ces moyens d'assistance sont constitués, pour chacun des systèmes articulés, par un ressort à gaz, interposé entre la pièce 57 fixée au montant du premier quadrilatère 17 et la partie avant du châssis 2. However, in order to facilitate the verticalization and lowering movements, the uprighting armchair 1 also comprises assistance means 65. According to this example, these assistance means are constituted, for each of the articulated systems, by a spring gas, interposed between the piece 57 fixed to the amount of the first quadrilateral 17 and the front portion of the frame 2.

    La mise en oeuvre de tels ressort à gaz 65 permet effectivement, d'une part, de réduire substantiellement la force nécessaire pour la verticalisation et, d'autre part, de ralentir le mouvement d'abaissement procurant ainsi un grand sentiment de sécurité à l'utilisateur.The use of such gas springs 65 effectively makes it possible, on the one hand, to reduce substantially the force required for verticalization and, on the other hand, to slow the lowering movement thus providing a great feeling of safety to the user. 'user.

    Afin de procurer une certaine stabilité à la position assise et empêcher un déclenchement spontané du mouvement de verticalisation, l'articulation des leviers 41, 43 est de préférence conçue de manière à permettre un verrouillage automatique de cette position. A cet effet et comme le montre plus en détail la fig.4, l'axe du pivot 45 d'articulation du second levier 43 sur le premier quadrilatère 17 est, en position assise du fauteuil, situé en dessous d'une droite Δ passant par, d'une part, l'axe du pivot 44 d'articulation entre les premier 41 et second 43 leviers et, d'autre part, l'axe du pivot 42 d'articulation du premier levier 41 sur la partie arrière du châssis 2. In order to provide some stability to the sitting position and to prevent a spontaneous triggering of the vertical movement, the articulation of the levers 41, 43 is preferably designed to allow automatic locking of this position. For this purpose and as shown in more detail in FIG. 4, the axis of the articulation pivot 45 of the second lever 43 on the first quadrilateral 17 is, in the seating position of the chair, situated below a straight line Δ by, on the one hand, the axis of the hinge pin 44 between the first 41 and second 43 levers and, secondly, the axis of the hinge pivot 42 of the first lever 41 on the rear part of the frame 2.

    Toutefois, il semble, dans certain cas, qu'une pression intempestive ou accidentelle sur la partie avant de la poignée suffit, compte tenu de la puissance du ressort à gaz, à déclencher une amorce de verticalisation, alors même que l'utilisateur souhaiterait rester en position assise.However, it seems that, in certain cases, untimely pressure or accidentally on the front of the handle is sufficient, given the power of the gas spring, to trigger a priming of verticalization, even as the user would like to stay in a sitting position.

    Or, il est apparu que, de manière avantageuse, le premier verrouillage, assuré par l'articulation des leviers 41, 43, pouvait, dans une forme préférée de réalisation, être renforcé par un verrouillage automatique de la poignée articulée 49 dans la position assise du fauteuil. En effet, il a été constaté que si l'axe du pivot 56 d'articulation de la biellette 55 sur le premier quadrilatère 17, et ici le bras inférieur 19, est situé en position assise du fauteuil au dessus d'une droite Δ' passant par, d'une part, l'axe du pivot 44 d'articulation de la poignée sur les premier 41 et second 43 leviers et, d'autre part, l'axe du pivot 58 de liaison entre la poignée 49 et la biellette 55, il est obtenu un effet de verrouillage automatique.However, it has been found that, advantageously, the first locking, provided by the articulation of the levers 41, 43, could, in a preferred embodiment, be reinforced by an automatic locking of the articulated handle 49 in the seated position. of the armchair. Indeed, it has been found that if the axis of the pivot 56 of articulation of the rod 55 on the first quadrilateral 17, and here the lower arm 19, is located in the seating position of the chair above a straight line Δ ' passing through, on the one hand, the axis of the hinge pin 44 of the handle on the first 41 and second 43 levers and, secondly, the axis of the pivot 58 connecting the handle 49 and the connecting rod 55, it is obtained an automatic locking effect.

    Ainsi, avant d'amorcer le mouvement de verticalisation, il faut tout d'abord déverrouiller la poignée articulée en la faisant pivoter, de manière que le pivot 56 passe en dessous de la droite Δ', ce qui, compte tenu de la configuration adoptée, demande un effort de traction volontaire sur l'arceau de préhension et ne peut donc pas résulter d'une fausse manoeuvre. Cet effort de traction correspond, de manière naturelle, à l'amorce du mouvement d'enroulement de verticalisation.Thus, before initiating the verticalization movement, it is first necessary to unlock the articulated handle by pivoting it, so that the pivot 56 passes below the straight line Δ ', which, taking into account the configuration adopted , requires a voluntary traction force on the handlebar and can not therefore result from a false maneuver. This tensile stress corresponds, in a natural way, to the beginning of the vertical winding movement.

    Après ce premier déverrouillage, il convient de déverrouiller le mouvement des leviers 41, 43 en faisant passer le pivot 45 au dessus de la droite Δ pour la poursuite de l'effort de traction.After this first unlocking, it is necessary to unlock the movement of the levers 41, 43 by passing the pivot 45 above the straight line Δ for the continuation of the tensile force.

    A ce stade et après ces deux déverrouillages consécutifs, il est alors possible de poursuivre le mouvement d'enroulement de la poignée pour accomplir, de manière fluide, la verticalisation.At this point and after these two consecutive unlockings, it is then possible to continue the winding movement of the handle to accomplish, so fluid, verticalization.

    Ce mode de réalisation préférée du fauteuil selon l'invention, avec un double verrouillage automatique de la position assise, présente l'avantage d'offrir une très grande sécurité d'utilisation du fauteuil en interdisant tout déclenchement intempestif de la verticalisation et cela sans aucun système supplémentaire de frein qui viendrait alourdir le fauteuil. Il doit être souligné que, selon l'invention, le déverrouillage de la position assise s'effectue dans le cadre du mouvement d'enroulement du verticalisateur, de sorte que l'utilisateur n'a aucune manoeuvre particulière à effectuer avant sa verticalisation.This preferred embodiment of the chair according to the invention, with a double automatic locking of the sitting position, has the advantage of offering a very high security of use of the wheelchair by preventing inadvertent tripping of verticalization and this without any additional brake system that would come weigh down the chair. It must be emphasized that, according to the invention, the unlocking of the sitting position is performed as part of the winding motion of the verticalizer, so that the user has no particular maneuver to perform before its verticalization.

    De la même manière, il sera recherché la possibilité d'assurer un verrouillage automatique de la position de verticalisation.In the same way, it will be sought the possibility of ensuring a lock automatic position of verticalization.

    Sur l'exemple illustré, ce verrouillage est obtenu par la configuration adoptée pour les leviers 41, 43. En effet, il y a verrouillage lorsque l'axe d'articulation du pivot 44 de liaison entre les premier 41 et second 43 leviers est, en position verticalisée du fauteuil fig. 3, situé au dessus d'une droite Δ" passant par, d'une part, le pivot 42 d'articulation du premier levier 41 sur la partie arrière du châssis 2 et, d'autre part, le pivot 45 d'articulation du second levier 43 sur le premier quadrilatère 17 et ici le bras inférieur 19. In the illustrated example, this locking is obtained by the configuration adopted for the levers 41, 43. Indeed, there is locking when the axis of articulation of the pivot 44 connecting the first 41 and second 43 levers is, in the upright position of the chair fig. 3, located above a straight line Δ "passing through, on the one hand, the hinge pin 42 of the first lever 41 on the rear part of the frame 2 and, on the other hand, the hinge pin 45 of the second lever 43 on the first quadrilateral 17 and here the lower arm 19.

    Ce verrouillage de la position de verticalisation est renforcé lorsque les axes d'articulation des pivots 44, 58 de la poignée sont, en position verticalisée du fauteuil, situés de part et d'autre la droite Δ".This locking of the vertical position is reinforced when the axes of articulation of the pivots 44, 58 of the handle are, in the vertical position of the chair, located on either side of the line Δ ".

    De plus, en position verticalisée, le poids de l'utilisateur suffit à accentuer le verrouillage de la position, de sorte qu'il n'est pas nécessaire de maintenir une pression sur les poignées, l'utilisateur pouvant alors se consacrer à des activités normales avec ses membres supérieurs.In addition, in a vertical position, the weight of the user is sufficient to accentuate the locking position, so that it is not necessary to maintain a pressure on the handles, the user can then devote himself to activities normal with its upper limbs.

    Bien entendu, diverses modifications peuvent être effectuées sur le fauteuil verticalisateur tel que décrit précédemment sans sortir du cadre de la présente invention.Of course, various modifications can be made on the chair verticalizer as described above without departing from the scope of this invention.

    Claims (8)

    Fauteuil verticalisateur pour handicapés et invalides, comprenant un châssis (2) supportant une structure articulée (12) qui comprend, une assise (4) un repose-pied (33), un dossier, ainsi que deux systèmes articulés symétriques latéraux (13) comprenant chacun : un premier polygone ou quadrilatère déformable (17) contribuant au support de l'assise, composé de deux barres, respectivement supérieure (18) et inférieure (19), articulées sur la partie antérieure du châssis (2) et liées vers leurs parties arrière par une pièce d'écartement (20), un second polygone ou quadrilatère déformable (26), contribuant au support du repose-pied, une armature de dossier (34, 35) articulée sur le premier quadrilatère (17), à l'opposé du second quadrilatère (26), par l'intermédiaire de la pièce d'écartement (20) au moins, et un ensemble de manoeuvre (40), interposé entre le premier quadrilatère et le châssis, qui comprend un premier levier (41) articulé sur la partie arrière du châssis (2) et, à l'extrémité d'un second levier (43) dont l'autre extrémité est articulée sur le premier quadrilatère (17), ainsi qu'une poignée de manoeuvre (49) qui assume une fonction de commande et de contrôle du pivotement relatif des systèmes latéraux, d'une position d'abaissement à une position de verticalisation de la structure par rapport au châssis et inversement,    caractérisé en ce en ce que, pour chaque ensemble de manoeuvre, la poignée de manoeuvre (49), est articulée, d'une part, sur le second levier (43) et/ou le premier levier (41) et d'autre part, sur le premier quadrilatère (17) par l'intermédiaire d'une biellette (55) dont une première extrémité est liée par un pivot (56) au premier quadrilatère et la seconde extrémité est liée par un pivot (58) à la poignée de manoeuvre (49). Stand-up chair for the disabled and disabled, comprising a frame (2) supporting an articulated structure (12) which comprises, a seat (4) a footrest (33), a backrest, and two lateral symmetrical articulated systems (13) comprising each : a first deformable polygon or quadrilateral (17) contributing to the support of the seat, composed of two bars, respectively upper (18) and lower (19), articulated on the front part of the frame (2) and linked to their rear parts by a spacer (20), a second deformable polygon or quadrilateral (26), contributing to the support of the footrest, a backrest frame (34, 35) articulated on the first quadrilateral (17), opposite the second quadrilateral (26), through the at least one spacer (20) , and a maneuvering assembly (40) interposed between the first quadrilateral and the frame, which includes a first lever (41) hinged to the rear portion of the frame (2) and at the end of a second lever (43). whose other end is articulated on the first quadrilateral (17), and an operating handle (49) which assumes a function of controlling and controlling the relative pivoting of the lateral systems, from a lowering position to a position of verticalization of the structure relative to the chassis and vice versa, characterized in that, for each operating assembly, the operating handle (49) is articulated on the one hand to the second lever (43) and / or the first lever (41) and on the other hand on the first quadrilateral (17) via a link (55) , a first end of which is connected by a pivot (56) to the first quadrilateral and the second end is connected by a pivot (58) to the handle maneuver (49). Fauteuil verticalisateur selon la revendication 1, caractérisé en ce que la distance des deux pivots (56 et 58) de la biellette est choisie pour ajuster au moins l'amplitude du mouvement de la poignée de manoeuvre.Stand chair according to claim 1, characterized in that the distance of the two pivots (56 and 58) of the rod is chosen to adjust at least the amplitude of the movement of the operating handle. Fauteuil verticalisateur selon la revendication 1 ou 2, caractérisé en ce que la poignée de manoeuvre (49) est articulée sur l'ensemble formé par le premier levier (41) et le second levier (43) au niveau du pivot (44) de liaison entre les premier (41) et second (43) leviers.Stand chair according to claim 1 or 2, characterized in that the operating handle (49) is articulated on the assembly formed by the first lever (41) and the second lever (43) at the pivot (44) of connection between the first (41) and second (43) levers. Fauteuil verticalisateur selon l'une des revendications 1 à 3, caractérisé en ce que, de manière à assurer un verrouillage automatique de la structure articulée en position assise, l'axe du pivot (45) d'articulation du second levier (43) sur le premier quadrilatère (17) est, en position assise du fauteuil, situé en dessous d'une droite Δ passant par, d'une part, le pivot (44) d'articulation des premier (41) et second (43) levier et, d'autre part, le pivot (42) d'articulation du premier levier (41) sur la partie arrière du châssis (2). Stand-up chair according to one of claims 1 to 3, characterized in that , so as to ensure an automatic locking of the articulated structure in the seated position, the axis of the pivot (45) of articulation of the second lever (43) on the first quadrilateral (17) is, in the seating position of the chair, located below a line Δ passing through, on the one hand, the hinge pin (44) of the first (41) and second (43) lever and on the other hand, the hinge pin (42) of the first lever (41) on the rear part of the frame (2). Fauteuil verticalisateur selon l'une des revendications 1 à 4, caractérisé en ce que, de manière à assurer un verrouillage automatique de la structure articulée en position assise, l'axe d'articulation du pivot (56) d'articulation de la biellette sur le premier quadrilatère est situé, en position assise du fauteuil au dessus d'une droite Δ' passant par, d'une part, le pivot (44) d'articulation de la poignée (49) sur le premier (41) et/ou le second (43) levier et, d'autre part, le pivot (58) de liaison entre la poignée (49) et la biellette (55). Stand chair according to one of claims 1 to 4, characterized in that , so as to ensure an automatic locking of the articulated structure in the seated position, the axis of articulation of the pivot (56) of articulation of the connecting rod on the first quadrilateral is located, in the sitting position of the chair above a straight line Δ 'passing through, on the one hand, the pivot (44) of articulation of the handle (49) on the first (41) and / or the second (43) lever and, secondly, the pivot (58) connecting the handle (49) and the rod (55). Fauteuil verticalisateur selon l'une des revendications 1 à 5, caractérisé en ce que de manière à assurer un verrouillage automatique de la structure articulée en position verticalisée, l'axe d'articulation du pivot (44) de liaison entre les premier (41) et second (43) leviers est, en position verticalisée du fauteuil, situé au dessus d'une droite Δ" passant par, d'une part, le pivot (42) d'articulation du premier levier (41) sur la partie arrière du châssis (2) et, d'autre part, le pivot (45) d'articulation du second levier (43) sur le premier quadrilatère (17). Stand chair according to one of claims 1 to 5, characterized in that to ensure an automatic locking of the articulated structure in a vertical position, the axis of articulation of the pivot (44) connecting the first (41) and second (43) levers is, in the upright position of the chair, located above a straight line Δ "passing through, on the one hand, the hinge pivot (42) of the first lever (41) on the rear portion of the frame (2) and, secondly, the pivot (45) of articulation of the second lever (43) on the first quadrilateral (17). Fauteuil verticalisateur selon l'une des revendications 1 à 6, caractérisé en ce que de manière à assurer un verrouillage automatique de la structure articulée en position verticalisée, les axes d'articulation des pivots (44, 58) de la poignée (49) sont, en position verticalisée du fauteuil, situés de part et d'autre une droite Δ" passant par, d'une part, le pivot (42) d'articulation du premier levier (41) sur la partie arrière du châssis (2) et, d'autre part, le pivot (45) d'articulation du second levier (43) sur le premier quadrilatère (17). Stand chair according to one of claims 1 to 6, characterized in that to ensure automatic locking of the articulated structure in a vertical position, the axes of articulation of the pivots (44, 58) of the handle (49) are , in a vertical position of the chair, located on either side a straight line Δ "passing through, on the one hand, the pivot (42) of articulation of the first lever (41) on the rear part of the frame (2) and on the other hand, the articulation pivot (45) of the second lever (43) on the first quadrilateral (17). Fauteuil verticalisateur selon l'une des revendications 1 à 7, caractérisé en ce qu'il comprend un organe d'assistance (65) du mouvement de verticalisation-abaissement.Stand chair according to one of claims 1 to 7, characterized in that it comprises a support member (65) of the verticalization-lowering movement.
    EP05356092A 2004-05-24 2005-05-20 Lifting chair with demultiplication of the liftingoperation Not-in-force EP1600134B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0405578A FR2870451B1 (en) 2004-05-24 2004-05-24 VERTICALIZING ARMCHAIR WITH DEMULTIPLICATION OF THE VERTICALIZATION MANEUVER
    FR0405578 2004-05-24

    Publications (2)

    Publication Number Publication Date
    EP1600134A1 true EP1600134A1 (en) 2005-11-30
    EP1600134B1 EP1600134B1 (en) 2008-10-22

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP05356092A Not-in-force EP1600134B1 (en) 2004-05-24 2005-05-20 Lifting chair with demultiplication of the liftingoperation

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    US (1) US7398989B2 (en)
    EP (1) EP1600134B1 (en)
    CN (1) CN100562302C (en)
    AT (1) ATE411790T1 (en)
    DE (1) DE602005010504D1 (en)
    FR (1) FR2870451B1 (en)

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    US9375372B2 (en) 2010-04-27 2016-06-28 Levo Ag Wohlen Stand-up unit for stand-up wheelchairs and chairs, particularly therapy chairs
    GR20150100202A (en) * 2015-05-11 2017-01-17 Δημητριος Διονυσιου Πετρωτος Electrically-driven variable--geometry weelchair
    US9775753B2 (en) 2013-05-17 2017-10-03 Dane Technologies, Inc. Methods, systems, and devices relating to multifunctional aircraft aisle wheelchair
    US10792200B1 (en) 2019-04-06 2020-10-06 RapAdapt LLC Assistive mobility device
    US11813212B2 (en) 2019-04-06 2023-11-14 Rapadapt Corporation Assistive mobility device

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    US11813212B2 (en) 2019-04-06 2023-11-14 Rapadapt Corporation Assistive mobility device

    Also Published As

    Publication number Publication date
    EP1600134B1 (en) 2008-10-22
    CN1701780A (en) 2005-11-30
    CN100562302C (en) 2009-11-25
    FR2870451B1 (en) 2006-08-18
    FR2870451A1 (en) 2005-11-25
    US20060012147A1 (en) 2006-01-19
    ATE411790T1 (en) 2008-11-15
    DE602005010504D1 (en) 2008-12-04
    US7398989B2 (en) 2008-07-15

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