EP4456853B1 - Neigbare beinstützenvorrichtung für rollstuhl - Google Patents

Neigbare beinstützenvorrichtung für rollstuhl

Info

Publication number
EP4456853B1
EP4456853B1 EP22809436.3A EP22809436A EP4456853B1 EP 4456853 B1 EP4456853 B1 EP 4456853B1 EP 22809436 A EP22809436 A EP 22809436A EP 4456853 B1 EP4456853 B1 EP 4456853B1
Authority
EP
European Patent Office
Prior art keywords
leg rest
pivoting structure
pivoting
inclinable
frame
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
EP22809436.3A
Other languages
English (en)
French (fr)
Other versions
EP4456853C0 (de
EP4456853A1 (de
Inventor
Michel Ohruh
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.)
New Live Ingenierie SAS
Original Assignee
New Live Ingenierie SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Live Ingenierie SAS filed Critical New Live Ingenierie SAS
Publication of EP4456853A1 publication Critical patent/EP4456853A1/de
Application granted granted Critical
Publication of EP4456853C0 publication Critical patent/EP4456853C0/de
Publication of EP4456853B1 publication Critical patent/EP4456853B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs
    • A47C7/506—Supports for the feet or the legs of adjustable type
    • A47C7/5066—Supports for the feet or the legs of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs of adjustable type by rotation actuated by linkages
    • 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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • 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
    • A61G5/127—Rests specially adapted therefor, e.g. for the head or the feet for lower legs
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/74—General characteristics of devices with special adaptations, e.g. for safety or comfort for anti-shear when adjusting furniture

Definitions

  • the present invention relates to the field of wheelchairs, and more particularly to an adjustable leg rest device.
  • a wheelchair mainly consists of a rolling chassis on which is attached a chair comprising, in addition to a seat, a backrest and armrests, a leg rest, consisting of a platform fitted with cushions to rest the calves and which is angle adjustable by being pivotally mounted on the chassis, so that the user can find the most comfortable position possible between the two extreme positions, legs bent and legs extended.
  • the leg rest has a footrest at its free end, in the form of a platform or adjustable angle pallet.
  • the pads and footrest preferably include means of adjustment, allowing the user to find the most comfortable position.
  • the distance between the footrest and the axis of the knee joint decreases, therefore leaving less room for the legs, and vice versa when folding.
  • the leg rest device includes a pivoting structure mounted on the chair frame on which the cushioned platform can slide longitudinally, perpendicular to the pivot axis, so as to allow adaptation and adjustment of the distance between the footrest and the axis of the knees.
  • the US patent application US2003075967 This describes a liftable leg rest for a wheelchair.
  • the leg rest includes a frame to support the lower part of a user's leg; the frame can be attached to the wheelchair; the frame is movable between a lowered and a raised position around a pivot point when attached to the wheelchair.
  • the present invention aims to remedy the various aforementioned drawbacks by proposing a leg rest device of simple design, which allows switching from a bent-legged to a stretched-legged position and vice versa, without changing the initial position chosen to be the most comfortable for the user.
  • the tilting leg rest device for a wheelchair comprises a rolling chassis on which is fixed a chair comprising, in addition to a seat, a backrest and armrests, said leg rest comprising a structure mounted pivoting on said chassis, so that the user can find a position between two extreme positions, legs bent and legs extended, said leg rest also comprising a platform or the like fitted with cushions for resting the calves, and which is mounted sliding on said pivoting structure, so as to allow adjustment in length and adaptation of the positioning of said cushions, and it is characterized in that said platform is mounted sliding on said pivoting structure through a curved guide path, which is convex on the side supporting the legs.
  • the curvature of the path traveled by the platform during its translation generates an elevation of said platform relative to the general plane of the pivoting structure, sufficient to compensate for the offset due to pivoting.
  • the pivoting structure is driven by an electric actuator, attached to said pivoting structure, and whose rod is attached to the chassis, through a pivot with an axis eccentric relative to that of pivoting of said pivoting structure.
  • the movable platform is connected to the frame by means of a strap or similar device, which passes over return pulleys, one of which is movable under the effect of pivoting, so as to generate a modification of the path of said strap or similar device during the folding operation, and vice versa, and therefore the displacement of said movable platform.
  • the pivoting structure includes a first return pulley near the pivot axis of said pivoting structure, while a connecting rod mounted pivotally at one end on the chassis and extending under said pivoting structure has at its other end a return pulley, capable of moving away from said first return pulley during the folding operation, and vice versa.
  • a leg rest device which comprises a structure 1 pivotally mounted on a part 2 of a wheelchair frame not shown, around a pivot 20 and under the action of a jack 3, while a platform 4 is slidably mounted on the structure 1.
  • This platform 4 is equipped with pads 40, only one of which is visible, intended to support the user's calves, and has at its free end a footrest plate 41.
  • the pivoting of structure 1 is ensured by the cylinder 3, which is preferably electric, fixed in pivot to structure 2, and whose rod 30 is made fixed to part 2 of the chassis.
  • the end of the rod 30 carries a pulley 31 via a pivot 32 fixed to part 2 of the frame, and whose axis is parallel to that of the pivot 20, and eccentric with respect to the latter. It will be understood that the extension stroke of the rod 30 causes the unfolding of the structure 1, as shown in the diagrams. figures 2 And 3 .
  • the sliding in one direction or another is obtained by modifying the path traveled by a strap or similar 5, shown in transparency on these figures, by lengthening or shortening the distance separating its two ends, one of which 50 is fixed to the movable plate 4, while the other 51 is fixed to part 2 of the chassis.
  • a strap is preferentially used.
  • This shortening or lengthening is obtained by pivoting the structure 1, under the action of the cylinder 3, through the movement of a return pulley 33, which is mounted at the free end of a connecting rod 21, articulated on the part 2 of the chassis, and which extends under the structure 1.
  • the structure 1 includes, near the pivot 20, a return pulley 34.
  • the strap 5 passes successively, from the fixing of its end 50 on the movable plate 4, over the return pulley 34, over the return pulley 33 by passing under the pivoting structure 1, then on pulley 31 before being fixed to part 2 of the chassis by its end 51.
  • the connecting rod 21 is forced to fold and its return pulley 33 moves away from the return pulley 34, which lengthens the path of the strap 5 and thus causes the platform 4 to slide towards the pivot 20.
  • the return pulley 33 moves closer to the return pulley 34, which shortens the path of the strap 5 and allows the platform 4 to move away from the pivot 20.
  • This configuration allows the platform 4 to move according to the pivoting of the structure 1 under the action of the cylinder 3.
  • the sliding of the plate 4 on the structure 1 is achieved through a curved guide path 10, convex upwards, i.e. in the direction of the plate 4.
  • the height adjustment of the bearings 40 is carried out automatically during pivoting.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Passenger Equipment (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (4)

  1. Neigbare Beinstützenvorrichtung für einen Rollstuhl, wobei der Rollstuhl ein Fahrgestell (2) umfasst, an dem ein Sitz angebracht ist, umfassend neben einer Sitzfläche, auch eine Rückenlehne und Armlehnen, wobei die Beinstützenvorrichtung eine schwenkbar am Gestell (2) angebrachte Struktur (1) umfasst, damit der Benutzer eine Position zwischen zwei Endpositionen, nämlich angewinkelte Beine und ausgestreckte Beine, einnehmen kann, wobei die Beinstützenvorrichtung ferner eine mit Polstern (41) zum Auflegen der Waden versehene Platte oder dergleichen (4) umfasst, die verschiebbar an der schwenkbaren Struktur (1) angebracht ist, um eine Längeneinstellung und eine Anpassung der Positionierung der Polster (41) zu ermöglichen,
    dadurch gekennzeichnet, dass die Platte (4) auf der schwenkbaren Struktur (1) über eine gekrümmte Führungsschiene (10) verschiebbar montiert ist, die auf der die Beine stützenden Seite konvex ist.
  2. Neigbare Beinstützenvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schwenkstruktur (1) durch einen elektrischen Zylinder (3) bewegt wird, fest mit der Schwenkstruktur (1) verbunden, und dessen Schaft (30) über einen Drehzapfen, dessen Achse gegenüber der Schwenkachse (20) der Schwenkstruktur (2) exzentrisch ist, fest mit dem Gestell (2) verbunden ist.
  3. Neigbare Beinstützenvorrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die bewegliche Platte (4) über einen Riemen oder dergleichen (5) mit dem Gestell (2) verbunden ist, der über Umlenkrollen (31, 33, 34) verläuft, von denen eine (33) durch die Schwenkbewegung beweglich ist, um beim Einklappvorgang eine Verlängerung des Weges des Riemens oder dergleichen (5) zu erzeugen und umgekehrt, und also die Verschiebung der beweglichen Platte (4) zu bewirken.
  4. Neigbare Beinstützenvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Schwenkstruktur (1) eine erste Umlenkrolle (34) in der Nähe der Schwenkachse (20) der Schwenkstruktur (2) aufweist, während eine Koppelstange (21), die mit einem Ende schwenkbar am Gestell (2) angebracht ist und sich unter der Schwenkstruktur (1) erstreckt, an ihrem anderen Ende eine Umlenkrolle (33) aufweist, die sich beim Einklappvorgang von der ersten Umlenkrolle (34) entfernen kann und umgekehrt.
EP22809436.3A 2021-12-29 2022-10-27 Neigbare beinstützenvorrichtung für rollstuhl Active EP4456853B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR2114639 2021-12-29
FR2114642 2021-12-29
PCT/EP2022/080034 WO2023126090A1 (fr) 2021-12-29 2022-10-27 Dispositif de repose-jambes inclinable pour fauteuil roulant

Publications (3)

Publication Number Publication Date
EP4456853A1 EP4456853A1 (de) 2024-11-06
EP4456853C0 EP4456853C0 (de) 2025-11-19
EP4456853B1 true EP4456853B1 (de) 2025-11-19

Family

ID=84360688

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22809125.2A Active EP4456852B1 (de) 2021-12-29 2022-10-26 Teleskopisch neigbare fussstütze für einen motorisierten rollstuhl
EP22809436.3A Active EP4456853B1 (de) 2021-12-29 2022-10-27 Neigbare beinstützenvorrichtung für rollstuhl

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP22809125.2A Active EP4456852B1 (de) 2021-12-29 2022-10-26 Teleskopisch neigbare fussstütze für einen motorisierten rollstuhl

Country Status (3)

Country Link
US (2) US20250057711A1 (de)
EP (2) EP4456852B1 (de)
WO (2) WO2023126089A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113273842B (zh) * 2021-06-11 2025-06-24 广东佳居家具有限公司 一种支架结构以及座椅
TWI844337B (zh) * 2023-04-18 2024-06-01 國睦工業股份有限公司 輪椅的小腿靠撐結構

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330299B (en) * 1997-10-07 2002-02-27 Sunrise Medical Ltd Leg support for wheelchair
DE10104962C1 (de) * 2001-02-03 2002-06-27 Kusch Co Sitzmoebel Fußstütze für einen Liegesessel oder Arbeitsplatzstuhl
CA2359379A1 (en) * 2001-10-19 2003-04-19 Richard Eakins Raisable leg rest
NL2005469C2 (nl) * 2010-10-06 2012-04-11 Handicare B V Rolstoel.
DE202012103029U1 (de) * 2012-08-10 2012-09-03 Mu-Chang Tsai Rollstuhl mit verstellbaren Beinstützen

Also Published As

Publication number Publication date
WO2023126089A1 (fr) 2023-07-06
US20250064655A1 (en) 2025-02-27
EP4456853C0 (de) 2025-11-19
EP4456852C0 (de) 2025-12-03
US20250057711A1 (en) 2025-02-20
EP4456853A1 (de) 2024-11-06
EP4456852A1 (de) 2024-11-06
EP4456852B1 (de) 2025-12-03
WO2023126090A1 (fr) 2023-07-06

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