EP2572695B1 - Chair lift - Google Patents

Chair lift Download PDF

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Publication number
EP2572695B1
EP2572695B1 EP11306182.4A EP11306182A EP2572695B1 EP 2572695 B1 EP2572695 B1 EP 2572695B1 EP 11306182 A EP11306182 A EP 11306182A EP 2572695 B1 EP2572695 B1 EP 2572695B1
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EP
European Patent Office
Prior art keywords
seat
frame
winch
flexible link
attached
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.)
Active
Application number
EP11306182.4A
Other languages
German (de)
French (fr)
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EP2572695A1 (en
Inventor
Yoann CHOURAQUI
Damien Dumontier
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HEXAGONE
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HEXAGONE
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Publication date
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Priority to EP11306182.4A priority Critical patent/EP2572695B1/en
Priority to ES11306182.4T priority patent/ES2506992T3/en
Priority to US13/299,673 priority patent/US20130067653A1/en
Publication of EP2572695A1 publication Critical patent/EP2572695A1/en
Application granted granted Critical
Publication of EP2572695B1 publication Critical patent/EP2572695B1/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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1015—Cables, chains or cords
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1017—Pivoting arms, e.g. crane type mechanisms
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049—Attachment, suspending or supporting means for patients
    • A61G7/1059—Seats
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1001—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications
    • A61G7/1005—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications mounted on, or in combination with, a swimming-pool

Definitions

  • the present invention relates to a lift chair, particularly in the context of launching and leaving the water of a person with reduced mobility in a swimming pool.
  • It can be for example a mobile seat along a mast fixed on the edge of the pool pool.
  • the raising or lowering of the seat is done through a cable whose one end is fixed to the seat and whose other end is fixed to the drum of a winch fixed on the mast.
  • Such a device does not necessarily have the necessary safety criteria in case of breakage of the cable.
  • the document GB-A-2,191,989 shows a lift chair.
  • An object of the present invention is to provide a lifting chair which does not have the disadvantages of the prior art and which in particular has a safety system preventing the fall of the seat and therefore of the person sitting on the seat.
  • the elevating chair comprises at least one beam, for the or each beam, one of the ends is mounted free to rotate about a horizontal axis on the frame, and the other end is mounted freely in rotation around a horizontal axis on the seat.
  • the lift chair comprises at least two parallel beams and arranged one above the other.
  • the synchronization means is a rigid plate mounted free to rotate on each crank around the axis of the gripping portion of the corresponding crank.
  • the elevating chair comprises a lever whose one end is mounted free to rotate on the frame and whose other end is rotatably mounted on the synchronization means, the two axes of rotation of the lever being parallel to the axes. rotation of the cranks and the axis of rotation of the lever on the frame is not contained in the plane passing through their axes of rotation of the two cranks.
  • the seat has two armrests which extend horizontally and each has a free end which is bent upwards.
  • the Fig. 1 shows the lift chair 100 when the seat 104 is raised and therefore out of the water.
  • the Fig. 2b shows the lift chair 100 when the seat 104 is lowered and therefore in water.
  • the Fig. 2a shows the lift chair 100 when the seat 104 is in an intermediate position between the raised position and the lowered position.
  • the frame 102 can take different forms.
  • the frame 102 is movable and takes the form of a trolley with wheels 108 for rolling the lift chair 100 on the beach of the pool.
  • the seat 104 is rotatably mounted on the frame 102 via at least one beam 110 that said lift chair 100 has.
  • One end of the or each beam 110 is rotatably mounted about a horizontal axis on the frame 102, and the other end of the or each beam 110 is mounted free to rotate about a horizontal axis on the seat 104.
  • At least two parallel beams 110 are arranged and one above the other.
  • the Fig. 3 and the Fig. 4 show an enlargement of the handling system 106 according to two different views.
  • the handling system 106 includes a main winch 150a and a secondary winch 150b which are both attached to the frame 102, and for each winch 150a, 150b, a flexible link 152a, 152b of the cable or strap type.
  • Each winch 150a, 150b has a drum, and a crank 202a, 202b which has a gripping portion 206a, 206b to be gripped by a manipulator to rotate the crank 202a, 202b and therefore the corresponding drum.
  • the two winches 150a and 150b have parallel winding axes and here horizontal and transverse relative to the lift chair 100.
  • the rotation of the crank 202a of the main winch 150a causes unwinding, respectively winding, of the flexible link 152a, and thus the displacement of the seat 104 from the raised position to the lowered position and vice versa.
  • the length of the flexible link 152a of the main winch 150a is determined so as to remain stretched along the path of the seat 104.
  • the secondary winch 150b serves as a safety system in case of rupture of the flexible link 152a associated with the main winch 150a.
  • the length of the flexible link 152b linked to the secondary winch 105b is thus determined so as to cover also the complete displacement of the seat 104 between the raised position and the lowered position and vice versa while remaining a few centimeters.
  • the seat 104 moves freely until tensioning of the flexible link 152b connected to the secondary winch 105b, that is to say until the catching up of the distended part of the latter.
  • the two flexible links 152a and 152b must wind up and unfold in a synchronized manner. of the same length for a turn of the crank 202a of the main winch 150a.
  • the handling system 106 comprises a synchronization means 204 designed to drive the winding and unwinding of the flexible link 152b connected to the secondary winch 150b with a length equal to the winding and unwinding length of the flexible link. 152a linked to the main winch 150b.
  • crank 202a of the main winch 150a when a manipulator rotates the crank 202a of the main winch 150a, the crank 202b of the secondary winch 150b rotates so as to wind or unwind an identical length of the flexible link 152b.
  • Such a lift chair 100 thus has a safety system that prevents the descent of the seat 104 even in case of rupture of the flexible link 152a of the main winch 150a.
  • the drums of the two winches 150a and 105b have identical diameters and the radii of the cranks 202a and 202b are equal to obtain the same winding length for a drum revolution. on the two winches 150a and 150b.
  • the synchronization means 204 thus allows in other words to cause the rotation of the secondary winch drum 150b by a number of turns identical to that of the main winch drum 150a.
  • the radius of a crank 202a, 202b is the distance between the axis of rotation of the crank 202a, 202b and the axis of the gripping portion 206a, 206b.
  • the rotational axes of the drums and cranks 202a and 202b are horizontal and transverse relative to the lift chair 100.
  • the synchronization means 204 here takes the form of a rigid plate, here triangular, rotatably mounted on each crank 202a, 202b about the axis of the gripping portion 206a, 206b of the corresponding crank 202a, 202b.
  • the synchronization means 204 has a first port slipping on the gripping portion 206a of one of the cranks 202a, and a second port slipping on the gripping portion 206b of the other crank 202b whose length has been here reduced for aesthetic reasons.
  • the plate 204 is fixed in height on the gripping parts 206a and 206b.
  • the length of the distended portion is variable, but is preferably of the order of 5 cm.
  • crank 202a and 202b When the two cranks 202a and 202b are aligned in the plane passing through their two axes of rotation, this constitutes two unstable positions and it may happen that the crank 202b of the secondary winch 150b rotates in the opposite direction to that desired causing winding or unfolding of the flexible link 152b instead of respectively cause unwinding or winding.
  • a lever 302 is mounted between the frame 102 and the synchronization means 204.
  • the lever 302 has a length equal to the radii of the cranks 202a and 202b.
  • One end of the lever 302 is rotatably mounted on the frame 102 and the other end is rotatably mounted on the synchronization means 204.
  • the two axes of rotation of the lever 302 are parallel to the axes of rotation of the cranks 202a and 202b.
  • the axis of rotation of the lever 302 on the frame 102 is not contained in the plane passing through their axes of rotation of the two cranks 202a and 202b.
  • the seat 104 has two armrests 112 which extend horizontally and each has a free end 114 which is bent upwards. Thus, it is possible to deposit a stretcher on the two armrests 112 and this stretcher is held in position thanks to the curved free ends 114.
  • the frame 102 may be fixed and take for example the form of a mast planted on the edge of the basin 10 and having a horizontal bracket at its top.
  • the seat 104 is then attached to two flexible links under the bracket and the two winches are fixed on the mast.
  • Deflection means such as pulleys, can be arranged on the course of the flexible links to direct them from the seat to the winches.

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Description

La présente invention concerne une chaise élévatrice, en particulier dans le cadre de la mise à l'eau et de la sortie de l'eau d'une personne à mobilité réduite dans une piscine.The present invention relates to a lift chair, particularly in the context of launching and leaving the water of a person with reduced mobility in a swimming pool.

Il existe de nombreux dispositifs permettant la mise à l'eau et la sortie de l'eau d'une personne à mobilité réduite dans une piscine.There are many devices for launching and removing water from a person with reduced mobility in a swimming pool.

Il peut s'agir par exemple d'un siège mobile le long d'un mât fixé sur le bord du bassin de la piscine. La montée ou la descente du siège s'effectue grâce à un câble dont l'une des extrémités est fixée au siège et dont l'autre extrémité est fixée au tambour d'un treuil fixé sur le mât.It can be for example a mobile seat along a mast fixed on the edge of the pool pool. The raising or lowering of the seat is done through a cable whose one end is fixed to the seat and whose other end is fixed to the drum of a winch fixed on the mast.

Un tel dispositif ne présente pas forcément les critères de sécurité nécessaires en cas de rupture du câble. Le document GB-A-2 191 989 montre une chaise élévatrice.Such a device does not necessarily have the necessary safety criteria in case of breakage of the cable. The document GB-A-2,191,989 shows a lift chair.

Un objet de la présente invention est de proposer une chaise élévatrice qui ne présente pas les inconvénients de l'art antérieur et qui en particulier présente un système de sécurité empêchant la chute du siège et donc de la personne assise sur le siège.An object of the present invention is to provide a lifting chair which does not have the disadvantages of the prior art and which in particular has a safety system preventing the fall of the seat and therefore of the person sitting on the seat.

A cet effet, est proposée une chaise élévatrice comportant:

  • un châssis,
  • un siège prévu pour se déplacer par rapport au châssis entre une position relevée et une position abaissée,
  • un système de manutention prévu pour entraîner le siège de la position abaissée à la position relevée et inversement, et comportant un treuil principal et un treuil secondaire qui sont fixés au châssis, et pour chaque treuil, un lien souple dont l'une des extrémités est fixée au siège et dont l'autre extrémité est fixée au tambour dudit treuil, le lien souple lié au treuil principal étant tendu, et le lien souple lié au treuil secondaire étant détendu, et
  • un moyen de synchronisation comportant des moyens pour entraîner l'enroulement et le déroulement du lien souple lié au treuil secondaire d'une longueur égale à la longueur d'enroulement et de déroulement du lien souple lié au treuil principal.
For this purpose, is proposed a lift chair comprising:
  • a chassis,
  • a seat provided to move relative to the frame between a raised position and a lowered position,
  • a handling system intended to drive the seat from the lowered position to the raised position and vice versa, and comprising a main winch and a secondary winch which are fixed to the frame, and for each winch, a flexible link, one end of which is fixed to the seat and the other end of which is fixed to the drum of said winch, the flexible link connected to the main winch being tensioned, and the flexible link linked to the secondary winch being relaxed, and
  • synchronization means comprising means for driving the winding and unwinding of the flexible link associated with the secondary winch with a length equal to the winding and unwinding length of the flexible link connected to the main winch.

Avantageusement, la chaise élévatrice comprend au moins une poutrelle, pour la ou chaque poutrelle, l'une des extrémités est montée libre en rotation autour d'un axe horizontal sur le châssis, et l'autre extrémité est montée libre en rotation autour d'un axe horizontal sur le siège.Advantageously, the elevating chair comprises at least one beam, for the or each beam, one of the ends is mounted free to rotate about a horizontal axis on the frame, and the other end is mounted freely in rotation around a horizontal axis on the seat.

Avantageusement, la chaise élévatrice comprend au moins deux poutrelles parallèles et disposées l'une au-dessus de l'autre.Advantageously, the lift chair comprises at least two parallel beams and arranged one above the other.

Avantageusement, le moyen de synchronisation est une plaque rigide montée libre en rotation sur chaque manivelle autour de l'axe de la partie préhension de la manivelle correspondante.Advantageously, the synchronization means is a rigid plate mounted free to rotate on each crank around the axis of the gripping portion of the corresponding crank.

Avantageusement, la chaise élévatrice comprend un levier dont l'une des extrémités est montée libre en rotation sur le châssis et dont l'autre extrémité est montée libre en rotation sur le moyen de synchronisation, les deux axes de rotations du levier étant parallèles aux axes de rotations des manivelles et l'axe de rotation du levier sur le châssis n'étant pas contenu dans le plan passant par leurs axes de rotations des deux manivelles.Advantageously, the elevating chair comprises a lever whose one end is mounted free to rotate on the frame and whose other end is rotatably mounted on the synchronization means, the two axes of rotation of the lever being parallel to the axes. rotation of the cranks and the axis of rotation of the lever on the frame is not contained in the plane passing through their axes of rotation of the two cranks.

Avantageusement, le siège présente deux accoudoirs qui s'étendent horizontalement et chacun présente une extrémité libre qui est recourbée vers le haut.Advantageously, the seat has two armrests which extend horizontally and each has a free end which is bent upwards.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels :

  • la Fig. 1 montre une chaise élévatrice selon l'invention,
  • les Figs. 2a et 2b représentent différentes étapes de mise à l'eau ou de sortie de l'eau d'une chaise élévatrice selon l'invention,
  • la Fig. 3 montre un agrandissement du détail III de la Fig. 1, et
  • la Fig. 4 montre une vue de côté du détail de la Fig. 3.
The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being given in relation to the attached drawings, among which:
  • the Fig. 1 shows a lift chair according to the invention,
  • the Figs. 2a and 2b represent different stages of launching or leaving the water of a lift chair according to the invention,
  • the Fig. 3 shows an enlargement of detail III of the Fig. 1 , and
  • the Fig. 4 shows a side view of the detail of the Fig. 3 .

Dans la description qui suit, les termes relatifs à une position sont pris en référence à une chaise élévatrice en position de fonctionnement, c'est-à-dire comme elle est représentée sur la Fig. 1.In the following description, the terms relating to a position are taken with reference to an elevating chair in the operating position, that is to say as it is represented on the Fig. 1 .

La Fig. 1 montre une chaise élévatrice 100 qui est disposée au bord d'un bassin 10 d'une piscine et qui comporte:

  • un châssis 102,
  • un siège 104 prévu pour se déplacer par rapport au châssis 102 entre une position relevée et une position abaissée, et
  • un système de manutention 106 prévu pour entraîner le siège de la position abaissée à la position relevée et inversement.
The Fig. 1 shows a lift chair 100 which is arranged at the edge of a pool 10 and which comprises:
  • a frame 102,
  • a seat 104 provided to move relative to the frame 102 between a raised position and a lowered position, and
  • a handling system 106 provided to drive the seat from the lowered position to the raised position and vice versa.

La Fig. 1 montre la chaise élévatrice 100 lorsque le siège 104 est relevé et donc hors de l'eau.The Fig. 1 shows the lift chair 100 when the seat 104 is raised and therefore out of the water.

La Fig. 2b montre la chaise élévatrice 100 lorsque le siège 104 est abaissé et donc dans de l'eau.The Fig. 2b shows the lift chair 100 when the seat 104 is lowered and therefore in water.

La Fig. 2a montre la chaise élévatrice 100 lorsque le siège 104 est dans une position intermédiaire entre la position relevée et la position abaissée.The Fig. 2a shows the lift chair 100 when the seat 104 is in an intermediate position between the raised position and the lowered position.

Le châssis 102 peut prendre différentes formes. Dans le mode de réalisation de l'invention présenté sur la Fig. 1, le châssis 102 est mobile et prend la forme d'un chariot présentant des roues 108 permettant de faire rouler la chaise élévatrice 100 sur la plage de la piscine.The frame 102 can take different forms. In the embodiment of the invention presented on the Fig. 1 , the frame 102 is movable and takes the form of a trolley with wheels 108 for rolling the lift chair 100 on the beach of the pool.

Le siège 104 est monté mobile en rotation sur le châssis 102 par l'intermédiaire d'au moins une poutrelle 110 que ladite chaise élévatrice 100 présente.The seat 104 is rotatably mounted on the frame 102 via at least one beam 110 that said lift chair 100 has.

L'une des extrémités de la ou chaque poutrelle 110 est montée libre en rotation autour d'un axe horizontal sur le châssis 102, et l'autre extrémité de la ou chaque poutrelle 110 est montée libre en rotation autour d'un axe horizontal sur le siège 104.One end of the or each beam 110 is rotatably mounted about a horizontal axis on the frame 102, and the other end of the or each beam 110 is mounted free to rotate about a horizontal axis on the seat 104.

Pour éviter le basculement du siège 104 autour de la liaison pivot avec la poutrelle 110, il est disposé au moins deux poutrelles 110 parallèles et l'une au-dessus de l'autre.To prevent tilting of the seat 104 around the pivot connection with the beam 110, at least two parallel beams 110 are arranged and one above the other.

La Fig. 3 et la Fig. 4 montrent un agrandissement du système de manutention 106 selon deux vues différentes.The Fig. 3 and the Fig. 4 show an enlargement of the handling system 106 according to two different views.

Le système de manutention 106 comporte un treuil principal 150a et un treuil secondaire 150b qui sont tous les deux fixés au châssis 102, et pour chaque treuil 150a, 150b, un lien souple 152a, 152b du type câble ou sangle.The handling system 106 includes a main winch 150a and a secondary winch 150b which are both attached to the frame 102, and for each winch 150a, 150b, a flexible link 152a, 152b of the cable or strap type.

Chaque treuil 150a, 150b présente un tambour, et une manivelle 202a, 202b qui présente une partie de préhension 206a, 206b destinée à être saisie par un manipulateur pour faire tourner la manivelle 202a, 202b et donc le tambour correspondant.Each winch 150a, 150b has a drum, and a crank 202a, 202b which has a gripping portion 206a, 206b to be gripped by a manipulator to rotate the crank 202a, 202b and therefore the corresponding drum.

Pour chaque lien souple 152a, 152b, l'une des extrémités est fixée au siège 104 et l'autre extrémité est fixée au tambour dudit treuil 150a, 150b.For each flexible link 152a, 152b, one end is attached to the seat 104 and the other end is attached to the drum of said winch 150a, 150b.

Les deux treuils 150a et 150b ont des axes d'enroulement parallèles et ici horizontaux et transversaux par rapport à la chaise élévatrice 100.The two winches 150a and 150b have parallel winding axes and here horizontal and transverse relative to the lift chair 100.

La rotation de la manivelle 202a du treuil principal 150a entraîne le déroulement, respectivement l'enroulement, du lien souple 152a, et donc le déplacement du siège 104 de la position relevée vers la position abaissée et inversement. La longueur du lien souple 152a du treuil principal 150a est déterminée de manière à rester tendue tout le long du parcours du siège 104.The rotation of the crank 202a of the main winch 150a causes unwinding, respectively winding, of the flexible link 152a, and thus the displacement of the seat 104 from the raised position to the lowered position and vice versa. The length of the flexible link 152a of the main winch 150a is determined so as to remain stretched along the path of the seat 104.

Le treuil secondaire 150b sert de système de sécurité en cas de rupture du lien souple 152a lié au treuil principal 150a. La longueur du lien souple 152b lié au treuil secondaire 105b est donc déterminée de manière à pouvoir couvrir également le déplacement complet du siège 104 entre la position relevée et la position abaissée et inversement tout en restant distendu de quelques centimètres.The secondary winch 150b serves as a safety system in case of rupture of the flexible link 152a associated with the main winch 150a. The length of the flexible link 152b linked to the secondary winch 105b is thus determined so as to cover also the complete displacement of the seat 104 between the raised position and the lowered position and vice versa while remaining a few centimeters.

Ainsi en cas de rupture du lien souple 152a lié au treuil principal 150a, le siège 104 se déplace librement jusqu'à la mise en tension du lien souple 152b lié au treuil secondaire 105b, c'est-à-dire jusqu'au rattrapage de la partie distendue du ce dernier.Thus, in the event of rupture of the flexible link 152a connected to the main winch 150a, the seat 104 moves freely until tensioning of the flexible link 152b connected to the secondary winch 105b, that is to say until the catching up of the distended part of the latter.

Pour que la longueur de la partie distendue du lien souple 152b lié au treuil secondaire 105b reste sensiblement constante tout le temps du déplacement du siège 104, les deux liens souples 152a et 152b doivent s'enrouler et se dérouler de manière synchronisée, c'est-à-dire de la même longueur pour un tour de la manivelle 202a du treuil principal 150a.In order for the length of the distended part of the flexible link 152b connected to the secondary winch 105b to remain substantially constant all the time during the displacement of the seat 104, the two flexible links 152a and 152b must wind up and unfold in a synchronized manner. of the same length for a turn of the crank 202a of the main winch 150a.

A cette fin, le système de manutention 106 comporte un moyen de synchronisation 204 prévu pour entraîner l'enroulement et le déroulement du lien souple 152b lié au treuil secondaire 150b d'une longueur égale à la longueur d'enroulement et de déroulement du lien souple 152a lié au treuil principal 150b.To this end, the handling system 106 comprises a synchronization means 204 designed to drive the winding and unwinding of the flexible link 152b connected to the secondary winch 150b with a length equal to the winding and unwinding length of the flexible link. 152a linked to the main winch 150b.

Ainsi, lorsqu'un manipulateur fait tourner la manivelle 202a du treuil principal 150a, la manivelle 202b du treuil secondaire 150b tourne de manière à enrouler ou dérouler une longueur identique du lien souple 152b.Thus, when a manipulator rotates the crank 202a of the main winch 150a, the crank 202b of the secondary winch 150b rotates so as to wind or unwind an identical length of the flexible link 152b.

Ainsi même après rupture du lien souple 152a lié au treuil principal 150a, il est possible de continuer de déplacer le siège 104 en manoeuvrant la manivelle 202a du treuil principal 150a ou la manivelle 202b du treuil secondaire 150b.Thus, even after rupture of the flexible link 152a connected to the main winch 150a, it is possible to continue to move the seat 104 by operating the crank 202a of the main winch 150a or the crank 202b of the secondary winch 150b.

Une telle chaise élévatrice 100 présente donc un système de sécurité qui empêche la descente du siège 104 même en cas de rupture du lien souple 152a du treuil principal 150a.Such a lift chair 100 thus has a safety system that prevents the descent of the seat 104 even in case of rupture of the flexible link 152a of the main winch 150a.

Dans le mode de réalisation de l'invention présenté sur les Figs., les tambours des deux treuils 150a et 105b présentent des diamètres identiques et les rayons des manivelles 202a et 202b sont égaux pour obtenir une même longueur d'enroulement pour un tour de tambour sur les deux treuils 150a et 150b.In the embodiment of the invention shown in Figs., The drums of the two winches 150a and 105b have identical diameters and the radii of the cranks 202a and 202b are equal to obtain the same winding length for a drum revolution. on the two winches 150a and 150b.

Le moyen de synchronisation 204 permet ainsi en d'autres termes d'entraîner la rotation du tambour du treuil secondaire 150b d'un nombre de tours identique à celui du tambour du treuil principal 150a.The synchronization means 204 thus allows in other words to cause the rotation of the secondary winch drum 150b by a number of turns identical to that of the main winch drum 150a.

Le rayon d'une manivelle 202a, 202b est la distance entre l'axe de rotation de la manivelle 202a, 202b et l'axe de la partie préhension 206a, 206b.The radius of a crank 202a, 202b is the distance between the axis of rotation of the crank 202a, 202b and the axis of the gripping portion 206a, 206b.

Ici, les axes de rotations des tambours et des manivelles 202a et 202b sont horizontaux et transversaux par rapport à la chaise élévatrice 100.Here, the rotational axes of the drums and cranks 202a and 202b are horizontal and transverse relative to the lift chair 100.

Le moyen de synchronisation 204 prend ici la forme d'une plaque rigide, ici triangulaire, montée libre en rotation sur chaque manivelle 202a, 202b autour de l'axe de la partie préhension 206a, 206b de la manivelle 202a, 202b correspondante.The synchronization means 204 here takes the form of a rigid plate, here triangular, rotatably mounted on each crank 202a, 202b about the axis of the gripping portion 206a, 206b of the corresponding crank 202a, 202b.

Dans le mode de réalisation de l'invention présenté sur les Figs. 3 et 4, le moyen de synchronisation 204 présente un premier orifice s'enfilant sur la partie préhension 206a de l'une des manivelles 202a, et un deuxième orifice s'enfilant sur la partie préhension 206b de l'autre manivelle 202b dont la longueur a ici été réduite pour des raisons esthétiques.In the embodiment of the invention presented on the Figs. 3 and 4 , the synchronization means 204 has a first port slipping on the gripping portion 206a of one of the cranks 202a, and a second port slipping on the gripping portion 206b of the other crank 202b whose length has been here reduced for aesthetic reasons.

La plaque 204 est fixée en hauteur sur les parties préhension 206a et 206b.The plate 204 is fixed in height on the gripping parts 206a and 206b.

La longueur de la partie distendue est variable, mais elle est de préférence de l'ordre de 5 cm.The length of the distended portion is variable, but is preferably of the order of 5 cm.

Lorsque les deux manivelles 202a et 202b sont alignées dans le plan passant par leurs deux axes de rotations, cela constitue deux positions instables et il peut arriver que la manivelle 202b du treuil secondaire 150b tourne en sens inverse à celui désiré entraînant l'enroulement ou le déroulement du lien souple 152b au lieu d'entraîner respectivement son déroulement ou son enroulement.When the two cranks 202a and 202b are aligned in the plane passing through their two axes of rotation, this constitutes two unstable positions and it may happen that the crank 202b of the secondary winch 150b rotates in the opposite direction to that desired causing winding or unfolding of the flexible link 152b instead of respectively cause unwinding or winding.

Pour éviter ce phénomène, un levier 302 est monté entre le châssis 102 et le moyen de synchronisation 204. Le levier 302 présente une longueur égale aux rayons des manivelles 202a et 202b. L'une des extrémités du levier 302 est montée libre en rotation sur le châssis 102 et l'autre extrémité est montée libre en rotation sur le moyen de synchronisation 204. Les deux axes de rotations du levier 302 sont parallèles aux axes de rotations des manivelles 202a et 202b. L'axe de rotation du levier 302 sur le châssis 102 n'est pas contenu dans le plan passant par leurs axes de rotations des deux manivelles 202a et 202b.To avoid this phenomenon, a lever 302 is mounted between the frame 102 and the synchronization means 204. The lever 302 has a length equal to the radii of the cranks 202a and 202b. One end of the lever 302 is rotatably mounted on the frame 102 and the other end is rotatably mounted on the synchronization means 204. The two axes of rotation of the lever 302 are parallel to the axes of rotation of the cranks 202a and 202b. The axis of rotation of the lever 302 on the frame 102 is not contained in the plane passing through their axes of rotation of the two cranks 202a and 202b.

Le siège 104 présente deux accoudoirs 112 qui s'étendent horizontalement et chacun présente une extrémité libre 114 qui est recourbée vers le haut. Ainsi, il est possible de déposer un brancard sur les deux accoudoirs 112 et ce brancard est maintenu en position grâce aux extrémités libres recourbées 114.The seat 104 has two armrests 112 which extend horizontally and each has a free end 114 which is bent upwards. Thus, it is possible to deposit a stretcher on the two armrests 112 and this stretcher is held in position thanks to the curved free ends 114.

Bien entendu, la présente invention n'est pas limitée aux exemples et modes de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art.Of course, the present invention is not limited to the examples and embodiments described and shown, but it is capable of numerous variants accessible to those skilled in the art.

Par exemple, le châssis 102 peut être fixe et prendre par exemple la forme d'un mât planté sur le bord du bassin 10 et présentant une potence horizontale à son sommet.For example, the frame 102 may be fixed and take for example the form of a mast planted on the edge of the basin 10 and having a horizontal bracket at its top.

Le siège 104 est alors fixé à deux liens souples sous la potence et les deux treuils sont fixés sur le mât. Des moyens de déviation, tels que des poulies, peuvent être disposés sur le parcours des liens souples afin de les diriger du siège vers les treuils.The seat 104 is then attached to two flexible links under the bracket and the two winches are fixed on the mast. Deflection means, such as pulleys, can be arranged on the course of the flexible links to direct them from the seat to the winches.

Claims (6)

  1. A chair lift (100) comprising:
    - a frame (102),
    - a seat (104) designed to move between a raised position and a lowered position in relation to the frame (102),
    - an operating system (106) designed to move the seat from the lowered position to the raised position and vice versa and comprising a main winch (150a) attached to the frame (102) and a flexible link (152a) one of whose extremities is attached to the seat (104) and whose other extremity is attached to the drum of the main winch (150a), the flexible link (152a) connected to the main winch (150a) being under tension,
    the chair lift (100) being characterised in that the operating system (106) comprises a secondary winch (150b) attached to the frame (102) and another flexible link (152b) one of whose extremities is attached to the seat (104) and whose other extremity is attached to the drum of the secondary winch (150b), the flexible link (152b) connected to the secondary winch (150b) being slack, and in that it comprises synchronisation means (204) incorporating means to drive winding and unwinding of the flexible link (152b) attached to the secondary winch (150b) over a distance equal to the length over which the flexible link (152a) connected to the main winch (150b) is rolled up and unrolled.
  2. A chair lift (100) according to claim 1, characterised in that it comprises at least one beam (110), one of the extremities of the or each beam (110) being mounted to rotate freely about a horizontal axis on the frame (102) and the other extremity being mounted so as to rotate freely about a horizontal axis on the seat (104).
  3. A chair lift (100) according to claim 2, characterised in that it comprises at least two parallel beams (110) one located above the other.
  4. A chair lift (100) according to any one of claims 1 to 3, characterised in that the synchronisation means (204) is a rigid plate which is mounted to rotate freely on each crank (202a, 202b) about the axis of the gripped part (206a, 206b) of the corresponding crank (202a, 202b).
  5. A chair lift (100) according to claim 4, characterised in that it comprises a lever (302) one of whose extremities is mounted so as to rotate freely on the frame (102) and whose other extremity is mounted to rotate freely on the synchronisation means (204), the two rotation axes of the lever (302) being parallel to the rotation axes of the cranks (202a, 202b) and the rotation axis of the lever (302) on the frame (102) not being in the plane passing through the rotation axes of the two cranks (202a, 202b).
  6. A chair lift (100) according to any one of claims 1 to 5, characterised in that the seat (104) has two armrests (112) which extend horizontally and each have an upwardly curved free end (114).
EP11306182.4A 2011-09-20 2011-09-20 Chair lift Active EP2572695B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11306182.4A EP2572695B1 (en) 2011-09-20 2011-09-20 Chair lift
ES11306182.4T ES2506992T3 (en) 2011-09-20 2011-09-20 Lift chair
US13/299,673 US20130067653A1 (en) 2011-09-20 2011-11-18 Lifting Chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11306182.4A EP2572695B1 (en) 2011-09-20 2011-09-20 Chair lift

Publications (2)

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EP2572695A1 EP2572695A1 (en) 2013-03-27
EP2572695B1 true EP2572695B1 (en) 2014-06-25

Family

ID=44719775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11306182.4A Active EP2572695B1 (en) 2011-09-20 2011-09-20 Chair lift

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US (1) US20130067653A1 (en)
EP (1) EP2572695B1 (en)
ES (1) ES2506992T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013074832A1 (en) * 2011-11-15 2013-05-23 Global Lift Corporation Pool life portability method and apparatus
US20140101839A1 (en) * 2012-10-17 2014-04-17 S.R. Smith, Llc Lift seat
FR3012033A1 (en) * 2013-10-23 2015-04-24 Jean Claude Pecheux MOBILE LIFTING POTENCY OF A HANDICAP IN SEAT POSITION FOR ITS TRANSFER IN THE SWIMMING POOL, MOBILE, WITHOUT ANCHORING ON THE GROUND

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US230844A (en) * 1880-08-03 William e
US319119A (en) * 1885-06-02 pentz
FR2477012A1 (en) * 1980-03-03 1981-09-04 Combe Robert Chair lift for handicapped person - has jack actuating sprockets and chains to generate rotary movement to maintain chair horizontal
GB2191989B (en) * 1986-06-13 1989-12-13 Univ Loughborough Lifting apparatus
US4984955A (en) * 1989-02-23 1991-01-15 Mccullough Robert C Lift apparatus
FR2692141A1 (en) * 1992-06-16 1993-12-17 Messin Fabrice Toilet assistant.
US5790995A (en) * 1997-06-10 1998-08-11 Caden; John Aquatic lifting device
DE10028822B4 (en) * 2000-06-10 2010-10-07 Aquatec Gmbh Badewannenlifter

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ES2506992T3 (en) 2014-10-13
EP2572695A1 (en) 2013-03-27
US20130067653A1 (en) 2013-03-21

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