EP2136758A1 - Fauteuil roulant à roues motrices centrales - Google Patents

Fauteuil roulant à roues motrices centrales

Info

Publication number
EP2136758A1
EP2136758A1 EP08714795A EP08714795A EP2136758A1 EP 2136758 A1 EP2136758 A1 EP 2136758A1 EP 08714795 A EP08714795 A EP 08714795A EP 08714795 A EP08714795 A EP 08714795A EP 2136758 A1 EP2136758 A1 EP 2136758A1
Authority
EP
European Patent Office
Prior art keywords
wheel
wheelchair
spring
frame
spring joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08714795A
Other languages
German (de)
English (en)
Inventor
Kurt Hunziker
Alexandre Tapis
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.)
Degonda-Rehab SA
Degonda Rehab SA
Original Assignee
Degonda-Rehab SA
Degonda Rehab SA
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 Degonda-Rehab SA, Degonda Rehab SA filed Critical Degonda-Rehab SA
Publication of EP2136758A1 publication Critical patent/EP2136758A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—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
    • A61G5/04—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
    • A61G5/045—Rear 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
    • A61G5/06—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
    • A61G5/063—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 with eccentrically mounted wheels
    • 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
    • A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
    • 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
    • A61G5/1089—Anti-tip devices

Definitions

  • the invention relates to a wheelchair with Mittenradantrieb, with a chassis having a front and a rear frame, which are hinged together, wherein the rear frame has both a front part and a rear part extending from the hinge point forward or to the rear, with at least one arranged on the front frame front wheel, at least one arranged at the rear of the frame rear wheel and two center wheels, which are arranged on the front part of the rear frame and are independently driven by a respective motor.
  • the AT-B-384 167 shows a wheelchair with drivable front wheels, in which two auxiliary wheels are mounted in the rear frame area laterally of the rear wheel, 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 larger the wheel diameter, the easier it is for a wheel to overcome an obstacle.
  • the rear frame extends from the point of articulation forwards and backwards and carries front two center wheels and rear two Agkbare rear wheels.
  • the center wheels are driven independently by motors.
  • no spring-joint element or spring is provided which connects the rear frame to the front frame, so that no energy storage takes place when an obstacle is passed over.
  • this wheelchair is suitable for use on slightly uneven terrain, as illustrated by Figures 16 to 21, but is not able to overcome major obstacles, because then the contact pressure of the center wheels is often insufficient to spin the center wheels prevent. Even when driving up or down leaves the driving behavior to be desired.
  • a seat pivoting the front and rear frames with respect to each other against the spring force of the spring hinge element.
  • the arm which carries the rear wheel is pivoted against a spring force.
  • the pivoting of the arm facilitates the lifting of the front frame.
  • the energy stored in the spring joint elements causes a movement of the previously pivoted
  • spring joint elements as they have long been used in wheelchairs, for example in the form of ROSTA elements for use. It is possible to use the spring elements in series to increase the travel.
  • FIG. 1 is a perspective view of a wheelchair
  • FIG. 2 shows the wheelchair of FIG. 1 without a left center wheel
  • Fig. 5 shows the arrangement of several ROSTA elements in series.
  • FIG. 1 From Figures 1 to 4 of the wheelchair with Mittenradantrieb can be seen. It has a chassis 11 which has a front 12 and a rear frame 14. On the chassis 11, as shown schematically, a seat 13 is arranged.
  • the wheelchair has on each side a front wheel unit 15 and a center wheel 17.
  • the front wheel units 15 with the auxiliary wheel 16 and the front wheel 18 arranged in an elevated position are designed as described in WO 2006/102781.
  • Such front wheel units are particularly well suited for overcoming obstacles. But it would also be possible to use Schwenkradmaschineen conventional design.
  • Such a swivel wheel unit of conventional design forms the rear wheel 19.
  • the center wheel 17 together with its drive motor 21 is arranged on the rear frame 14 (FIG. 2).
  • the rear frame 14 forms a two-armed lever and is pivoted against a spring force at the hinge point 25 on the chassis 11.
  • the hinge point 25 is located between the axis 20 of the center wheel 17 and the axis 22 of the rear wheel 19 and that conveniently below an imaginary Connecting line between the axis 20 and the axis 22.
  • the articulation is effected by means of so-called ROSTA spring joint elements 27.
  • ROSTA elements are described for example in CH-A-681772 and have previously been used in wheelchairs (US-A-5 964473, EP-AI 584312).
  • the rear frame 14 has on both sides both a front part 23, and a rear part 24, which extend from the hinge point 25 forward or to the rear.
  • the rear part 24 of the frame 14 is formed by at least one articulated arm 31.
  • a ROSTA element 33 serves as a joint for the arm 31, a ROSTA element 33.
  • the arm 31 is therefore also in relation to the front part 23 against spring force pivoted.
  • ROSTA elements are robust and inexpensive components. However, other springs could be used, as can be seen from the prior art described above.
  • the arms 31 are connected to a bracket 32 to which a rear wheel 19 is arranged in the middle. It would be possible to arrange a rear wheel 19 on each arm 31.
  • the auxiliary wheel 16 of the front wheel unit 15 comes in contact with the obstacle 35, so that the chassis 11 is raised slightly forward against the spring force of the ROSTA elements 27 and 33 ( Figures 1 and 2). Later, the front wheel 18 then rises on the obstacle 35, wherein the arm 31 is further pivoted. If, during the further journey, the center wheels 17 abut the obstacle 41 (FIG. 4), the travel is somewhat delayed and forces arise due to the mass of the chair wearer and the seat, which the front part 23 and the arm 31, (FIGS 2) pivot. The drive motor 21 thereby moves upward (FIG.
  • FIG. 49 An example of a series connection is shown in FIG.
  • a housing 49 is a first, not visible spring joint element 51, which is in series with two left and right thereof arranged spring joint elements 53, which are connected by a bracket 32 with each other and with the arm 31.
  • the spring joint element 51 is connected in series with two spring joint elements 53 arranged in parallel.
  • Spring-joint elements are available in various lengths, for example 25, 33, 50, 66, 75 and 100 mm. Therefore, depending on the weight of the wheelchair user and his needs, various combinations in series are possible, for example
  • the wheelchair with Mittenradantrieb has a chassis (11), at least one front wheel (18), two middle wheels (17) and at least one rear wheel (19).
  • Each center wheel (17) together with its drive motor (21) is arranged on a carrier (23) which can pivot about the axis (25) by means of a spring-joint element (27) on
  • Chassis (11) is articulated. A pivoting of the carrier (23) from the rest position thus takes place against the spring force of the spring joint element (27).
  • the carrier (23) is connected via a further spring joint element (33) with the arm (31) which carries the rear wheel (19).
  • energy is first stored in the spring joint elements (27, 33). This energy is then released to raise the chassis (11) at the rear in unison with the engine drive.

Abstract

L'invention concerne un fauteuil roulant à roues motrices centrales disposant d'un châssis (11), d'au moins une roue avant (16), de deux roues centrales (17) et d'au moins une roue arrière (19). Chaque roue centrale (17) avec son moteur d'actionnement (21) est agencée sur un support (23) qui est raccordé autour de l'axe (25) de manière pivotante au châssis (11), au moyen d'une articulation à ressort (27). Un pivotement du support (23) s'effectue à partir de la position immobile en antagonisant ainsi la force élastique de l'articulation à ressort (27). Le support (23) est raccordé, au moyen d'une autre articulation à ressort (33), au bras (31) portant la roue arrière (19). En cas d'obstacle (35), l'énergie est d'abord emmagasinée dans les articulations à ressort (27, 33). Cette énergie est ensuite restituée afin de soulever l'arrière du châssis (11) avec l'entraînement par moteur.
EP08714795A 2007-04-13 2008-03-31 Fauteuil roulant à roues motrices centrales Withdrawn EP2136758A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6102007 2007-04-13
PCT/CH2008/000145 WO2008124953A1 (fr) 2007-04-13 2008-03-31 Fauteuil roulant à roues motrices centrales

Publications (1)

Publication Number Publication Date
EP2136758A1 true EP2136758A1 (fr) 2009-12-30

Family

ID=38720528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08714795A Withdrawn EP2136758A1 (fr) 2007-04-13 2008-03-31 Fauteuil roulant à roues motrices centrales

Country Status (2)

Country Link
EP (1) EP2136758A1 (fr)
WO (1) WO2008124953A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114259343A (zh) * 2020-09-16 2022-04-01 伍必翔 具有前导轮结构的辅助移动载具

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6554086B1 (en) 2000-10-27 2003-04-29 Invacare Corporation Obstacle traversing wheelchair
US7040429B2 (en) 2001-10-10 2006-05-09 Invacare Corporation Wheelchair suspension
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US7293801B2 (en) 2003-08-18 2007-11-13 Invacare Corporation Self-stabilizing suspension for wheeled vehicles
US7896394B2 (en) 2005-08-18 2011-03-01 Sunrise Medical Hhg, Inc. Midwheel drive wheelchair with independent front and rear suspension
AU2008214045B2 (en) 2007-02-08 2010-10-28 Invacare Corporation Wheelchair suspension
CA2676724C (fr) 2007-02-14 2013-12-17 Invacare Corporation Systeme de commande de stabilite
EP2485698B1 (fr) * 2009-10-09 2017-05-17 Invacare Corporation Suspension de fauteuil roulant
US8851214B2 (en) 2010-07-15 2014-10-07 Permobil Ab Electric mid-wheel drive wheelchair
US9308143B2 (en) 2012-02-15 2016-04-12 Invacare Corporation Wheelchair suspension
EP2716268B1 (fr) * 2012-10-04 2018-03-14 Sunrise Medical GmbH Système de suspension pour chaise roulante motorisée à roue centrale
ITRM20130101A1 (it) * 2013-02-22 2014-08-23 Giovanni Felice Minelli Carrozzina per persone diversamente abili.
CA3173043A1 (fr) 2020-02-25 2021-09-02 Invacare Corporation Systeme de fauteuil roulant et de suspension
JP7009536B2 (ja) * 2020-03-16 2022-02-10 本田技研工業株式会社 乗り物

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1138825A (zh) * 1994-11-18 1996-12-25 德冈达-雷哈伯有限公司 运送或帮助至少一个使用者尤其是残疾人移动的轮椅
US6206119B1 (en) * 1999-05-05 2001-03-27 Donald P. H. Wu Electrical wheelchair with double frame structure
US7040429B2 (en) * 2001-10-10 2006-05-09 Invacare Corporation Wheelchair suspension
US7234554B2 (en) * 2003-07-02 2007-06-26 Pride Mobility Products Corporation Rear wheel drive power wheelchair
CH698063B1 (de) * 2005-03-31 2009-05-15 Degonda Rehab Sa Lenkradeinheit und Rollstuhl mit mindestens einer Lenkradeinheit.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008124953A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114259343A (zh) * 2020-09-16 2022-04-01 伍必翔 具有前导轮结构的辅助移动载具

Also Published As

Publication number Publication date
WO2008124953A1 (fr) 2008-10-23

Similar Documents

Publication Publication Date Title
EP2136758A1 (fr) Fauteuil roulant à roues motrices centrales
EP1893153B1 (fr) Fauteuil roulant a entrainement de roue intermediaire
DE102006035490B4 (de) Aufhängung eines elektrischen Rollstuhls
EP1863694B1 (fr) Chaise roulante comprenant une unite a roue pivotante
DE69822141T2 (de) Rollstuhl mit einem kippbaren sitz
DE2707541A1 (de) Schienenungebundenes landfahrzeug
DE2940250A1 (de) Ergonomischer stuhl
EP2428193A2 (fr) Véhicule comprenant un entraînement de roue médiane, en particulier fauteuil roulant ou fauteuil roulant verticaliseur
EP0815822A1 (fr) Fauteuil roulant élévateur
DE202007018454U1 (de) Aufrichtrollstuhl mit anatomischem Rückenausgleich
EP2042011A1 (fr) Dispositif de montage pour un véhicule de travail
DE2256934A1 (de) Fahrzeugaufhaengung, insbesondere fuer ein motorfahrzeug
DE202004002188U1 (de) Vorderrad-Aufhängung eines elektrischen Rollstuhls
DE202019100213U1 (de) Sessel
EP1269820A1 (fr) Suspension et véhicule notamment appareil
DE102006011710B3 (de) Rollstuhl
EP1732490B1 (fr) Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation
DE2460106A1 (de) Landwirtschaftliches geraet mit einem erntegeraetkopf
EP0394830B1 (fr) Machine agricole, en particulier faucheuse, destinée à être montée sur un tracteur
EP1719485B1 (fr) Fauteuil roulant électrique
EP1584312B1 (fr) Fauteuil roulant motorisé
EP1114577B1 (fr) Machine agricole munie de moyens de compensation pour le travail sur pente
DE102008019832B4 (de) Stehrollstuhl mit variablem Bodenabstand der Fußstütze
DE2117665A1 (de) Selbstfahrende Mähvorrichtung
DE102018114882A1 (de) Selbstfahrendes Rasenpflegegeräte-Trägerfahrzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090917

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20121001