EP1732490B1 - Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation - Google Patents

Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation Download PDF

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Publication number
EP1732490B1
EP1732490B1 EP05714724A EP05714724A EP1732490B1 EP 1732490 B1 EP1732490 B1 EP 1732490B1 EP 05714724 A EP05714724 A EP 05714724A EP 05714724 A EP05714724 A EP 05714724A EP 1732490 B1 EP1732490 B1 EP 1732490B1
Authority
EP
European Patent Office
Prior art keywords
wheelchair
wheel
wheels
spring
auxiliary
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
EP05714724A
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German (de)
English (en)
Other versions
EP1732490A1 (fr
Inventor
Bruno Meyer
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.)
Levo AG
Levo AG Wohlen
Original Assignee
Levo AG
Levo AG Wohlen
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 Levo AG, Levo AG Wohlen filed Critical Levo AG
Publication of EP1732490A1 publication Critical patent/EP1732490A1/fr
Application granted granted Critical
Publication of EP1732490B1 publication Critical patent/EP1732490B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • 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
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/043—Mid wheel drive
    • 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
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/14—Standing-up or sitting-down aids

Definitions

  • the invention relates to a wheelchair with Mittenradantrieb, in particular a Traumrichtrollstuhl, with a chassis which has a front part and a rear part, which are hinged together by means of a joint and against the force of at least one spring are pivotable relative to each other, and at least one front wheel, two Center wheels, at least one rear wheel and at least one auxiliary wheel.
  • a wheelchair has three wheels, e.g. Having a front wheel and two center wheels, one can adjust a geometric plane, which is affected by each wheel.
  • This level is hereinafter referred to as "run level”.
  • a level floor corresponds at least substantially approximately to this geometric level.
  • a particular challenge for wheelchair users is the overcoming of obstacles, z. of curbs.
  • auxiliary or auxiliary wheels has been proposed in order to overcome obstacles more easily. That's how it shows AT-B-384 167 a wheelchair with drivable front wheels, in which in the rear frame area laterally of the rear wheel two additional wheels are mounted, which are associated with a leading and a trailing auxiliary wheel, which are mounted on a two-legged carrier.
  • this wheelchair has the disadvantage that, in contrast to a wheelchair with Mittenradantrieb, it can not be turned into a small space.
  • the EP-A-1 118 531 describes a vehicle with four successively arranged wheels or pairs of wheels and a complicated lever system, with which the overcoming of obstacles is facilitated. Also this vehicle can not be turned in a small space.
  • auxiliary wheel is arranged between the front wheel and the center wheels and at a distance from the running plane of these wheels.
  • the lever arm between the auxiliary wheel and the joint, which connects the front part of the chassis with the rear part, is therefore relatively small, so that arises when overcoming an obstacle, a relatively large pivoting. Accordingly, there is a relatively large energy storage in the spring.
  • the advantage is that the entire pivoting is used for energy storage, because the rear wheel does not have to be lowered onto the road, as was the case previously.
  • the auxiliary wheel can be driven coupled to the center wheels or driven separately. This further facilitates the overcoming of an obstacle.
  • the axis of the auxiliary wheel can be arranged at a distance from the axis of the center wheels. As advantageous, a distance of the axis of the auxiliary wheel of about one third of the distance of the front wheel has proven from the axis of the center wheels.
  • the auxiliary wheel is height adjustable. This allows adjustment according to the weight of the user of the wheelchair.
  • the wheelchair has two laterally spaced auxiliary wheels.
  • An expedient embodiment of the invention provides that the front part and the rear part of the chassis are hinged together in the region between the center wheels and the rear wheel. Although it is also possible to provide only one front wheel and / or auxiliary wheel, it is advantageous to provide two front wheels or auxiliary wheels. Likewise, two rear wheels can be provided.
  • the drive can z.Bsp. serve one or more electric motors.
  • the chassis 11 has a front part 13 and a rear part 15, which articulates by a hinge 17 connected to each other.
  • the rear part 15 with the rear wheel 24 is counter to the force of the spring 19, preferably a gas spring, pivotable in the counterclockwise direction.
  • At the front part 13 are the center wheels 21, the front wheels 23 and the auxiliary wheels 25.
  • the auxiliary wheels 25 are arranged between the front wheels 23 and the center gears 21 at a distance from the running plane 27.
  • the axis 29 of the respective auxiliary wheel 25 is located in the horizontal direction relatively close to the axis 31 of the center wheel 21.
  • This distance is advantageously about one third of the distance of the axis 33 of the front wheel 23 from the axis 31 of the center wheel 21.
  • the seat device 37 Firmly connected to the front part 13 is the seat device 37, which includes a righting mechanism in the illustrated example.
  • the seat device 37 may also be configured as a normal seat device of a wheelchair.
  • the footrest 39 and the backrest supports 41 can be seen on the drawing.
  • the wheelchair with Mittenradantrieb has a chassis 11, which has a front part 13 and a rear part 15 which are interconnected by means of a hinge 17. At least one front wheel 23, two center wheels 21 and at least one auxiliary wheel 25 are provided. It is essential that the auxiliary wheel 25 is located between the front wheel 23 and the center wheels 21 and is arranged at a distance from the running plane 27 of these wheels. When overcoming an obstacle 43, the gas spring 17 is tensioned both by the front wheels 23 and by the auxiliary wheel 25 and relaxed again when driving on. This makes it much easier to drive over obstacles.

Claims (12)

  1. Fauteuil roulant avec entraînement de roue centrale, en particulier fauteuil roulant verticalisateur, avec un châssis (11) qui présente une partie antérieure (13) et une partie postérieure (15) qui sont reliées de manière articulée l'une à l'autre au moyen d'une articulation (17) et qui peuvent être pivotées l'une par rapport à l'autre à l'encontre de la force d'au moins un ressort (19) ainsi qu'avec au moins une roue avant (23), deux roues centrales (21), au moins une roue arrière (24) et au moins une roue auxiliaire (25), caractérisé en ce que la roue auxiliaire (25) est placée entre la roue avant (23) et les roues centrales (21) et à un espacement du plan de marche (27) de ces roues.
  2. Fauteuil roulant selon la revendication 1, caractérisé en ce que la roue auxiliaire (25) est couplée en entraînement aux roues centrales (21).
  3. Fauteuil roulant selon la revendication 1 ou 2, caractérisé en ce que l'axe (29) de la roue auxiliaire (25) est placé dans le sens horizontal en étant espacé de l'axe (31) des roues centrales (21).
  4. Fauteuil roulant selon la revendication 4, caractérisé en ce que l'espacement de l'axe (29) de la roue auxiliaire (25) est d'environ un tiers de l'espacement entre la roue avant (23) et l'axe (31) des roues centrales (21).
  5. Fauteuil roulant selon l'une des revendications 1 à 4, caractérisé en ce que la roue auxiliaire (25) est réglable en hauteur.
  6. Fauteuil roulant selon l'une des revendications 1 à 5, caractérisé en ce que le ressort (19) présente une caractéristique de ressort pour laquelle la force pour tendre le ressort reste pratiquement constante pendant tout l'allongement du ressort.
  7. Fauteuil roulant selon la revendication 6, caractérisé en ce que le ressort (19) est un ressort à gaz.
  8. Fauteuil roulant selon l'une des revendications 1 à 7, caractérisé en ce que la partie avant (13) et la partie arrière (15) du châssis (11) sont reliées de manière articulée l'une à l'autre par l'articulation (17) dans la zone entre les roues centrales (21) et la roue arrière (24).
  9. Fauteuil roulant selon l'une des revendications 1 à 8, caractérisé en ce que deux roues avant (23) sont prévues.
  10. Fauteuil roulant selon l'une des revendications 1 à 9, caractérisé en ce que deux roues arrières (24) sont prévues.
  11. Fauteuil roulant selon l'une des revendications 1 à 10, caractérisé en ce que deux roues auxiliaires (25) sont prévues.
  12. Fauteuil roulant selon l'une des revendications 1 à 12, caractérisé en ce qu'une cale (35), un pied pivotant ou une roue auxiliaire ou une roue supplémentaire est prévue des deux côtés de la roue avant (23).
EP05714724A 2004-04-08 2005-03-30 Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation Active EP1732490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6222004 2004-04-08
PCT/CH2005/000182 WO2005097033A1 (fr) 2004-04-08 2005-03-30 Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation

Publications (2)

Publication Number Publication Date
EP1732490A1 EP1732490A1 (fr) 2006-12-20
EP1732490B1 true EP1732490B1 (fr) 2010-07-07

Family

ID=34961853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05714724A Active EP1732490B1 (fr) 2004-04-08 2005-03-30 Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation

Country Status (7)

Country Link
US (1) US20080169136A1 (fr)
EP (1) EP1732490B1 (fr)
JP (1) JP2007532157A (fr)
AT (1) ATE472990T1 (fr)
CA (1) CA2559909A1 (fr)
NO (1) NO20065131L (fr)
WO (1) WO2005097033A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH713464B1 (de) * 2007-08-24 2018-08-15 Levo Ag Wohlen Fahrzeug mit Mittenradantrieb, insbesondere Rollstuhl oder Aufrichtrollstuhl.
US8851214B2 (en) 2010-07-15 2014-10-07 Permobil Ab Electric mid-wheel drive wheelchair
US10772774B2 (en) 2016-08-10 2020-09-15 Max Mobility, Llc Self-balancing wheelchair
JP7030188B2 (ja) * 2018-06-20 2022-03-04 本田技研工業株式会社 移動体
CN110236810B (zh) * 2019-06-17 2020-09-04 南京林业大学 一种便于越障的电动轮椅

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Also Published As

Publication number Publication date
CA2559909A1 (fr) 2005-10-20
EP1732490A1 (fr) 2006-12-20
NO20065131L (no) 2006-11-07
JP2007532157A (ja) 2007-11-15
ATE472990T1 (de) 2010-07-15
WO2005097033A1 (fr) 2005-10-20
US20080169136A1 (en) 2008-07-17

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