WO2008124953A1 - Fauteuil roulant à roues motrices centrales - Google Patents

Fauteuil roulant à roues motrices centrales Download PDF

Info

Publication number
WO2008124953A1
WO2008124953A1 PCT/CH2008/000145 CH2008000145W WO2008124953A1 WO 2008124953 A1 WO2008124953 A1 WO 2008124953A1 CH 2008000145 W CH2008000145 W CH 2008000145W WO 2008124953 A1 WO2008124953 A1 WO 2008124953A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
wheelchair
spring
frame
spring joint
Prior art date
Application number
PCT/CH2008/000145
Other languages
German (de)
English (en)
Inventor
Alexandre Tapis
Original Assignee
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 filed Critical Degonda Rehab Sa
Priority to EP08714795A priority Critical patent/EP2136758A1/fr
Publication of WO2008124953A1 publication Critical patent/WO2008124953A1/fr

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 montée sur un support (23) qui est articulé sur le châssis (11) de manière à pivoter autour de l'essieu (25), au moyen d'un élément d'articulation à ressort (27). Un pivotement du support (23) pour sortir de la position de reposagit ainsi à l'encontre de la force élastique de l'élément d'articulation à ressort (27). Le support (23) est raccordé, au moyen d'un autre élément d'articulation à ressort (33), au bras (31) portant la roue arrière (19). En présence d'un obstacle (35), de l'énergie est d'abord accumulée dans les éléments d'articulation à ressort (27, 33). Cette énergie est ensuite libérée afin de soulever l'arrière du châssis (11) avec l'entraînement par moteur.
PCT/CH2008/000145 2007-04-13 2008-03-31 Fauteuil roulant à roues motrices centrales WO2008124953A1 (fr)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH610/07 2007-04-13
CH6102007 2007-04-13

Publications (1)

Publication Number Publication Date
WO2008124953A1 true WO2008124953A1 (fr) 2008-10-23

Family

ID=38720528

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2008/000145 WO2008124953A1 (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 (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011044405A1 (fr) 2009-10-09 2011-04-14 Invacare Corporation Suspension de fauteuil roulant
US8210556B2 (en) 2005-08-18 2012-07-03 Sunrise Medical Hhg, Inc. Midwheel drive wheelchair with independent front and rear suspension
ITRM20130101A1 (it) * 2013-02-22 2014-08-23 Giovanni Felice Minelli Carrozzina per persone diversamente abili.
US8851214B2 (en) 2010-07-15 2014-10-07 Permobil Ab Electric mid-wheel drive wheelchair
EP2716268A3 (fr) * 2012-10-04 2015-04-22 You-Q B.V. Système de suspension pour chaise roulante motorisée à roue centrale
US9149398B2 (en) 2000-10-27 2015-10-06 Invacare Corporation Obstacle traversing wheelchair
US9308143B2 (en) 2012-02-15 2016-04-12 Invacare Corporation Wheelchair suspension
US9346335B2 (en) 2007-02-14 2016-05-24 Invacare Corporation Stability control system
US9364377B2 (en) 2002-10-25 2016-06-14 Invacare Corporation Suspension for wheeled vehicles
US9370455B2 (en) 2001-10-10 2016-06-21 Invacare Corporation Wheelchair suspension
US9603762B2 (en) 2007-02-08 2017-03-28 Invacare Corporation Wheelchair suspension
US20210282990A1 (en) * 2020-03-16 2021-09-16 Honda Motor Co., Ltd. Vehicle provided with lift unit for seat
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US11903887B2 (en) 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems

Families Citing this family (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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5964473A (en) * 1994-11-18 1999-10-12 Degonda-Rehab S.A. Wheelchair for transporting or assisting the displacement of at least one user, particularly for handicapped person
US6206119B1 (en) * 1999-05-05 2001-03-27 Donald P. H. Wu Electrical wheelchair with double frame structure
US20050000742A1 (en) * 2003-07-02 2005-01-06 Mulhern James P. Rear wheel drive power wheelchair
US20060213705A1 (en) * 2001-10-10 2006-09-28 Molnar James H Wheelchair suspension
WO2006102781A2 (fr) * 2005-03-31 2006-10-05 Degonda Rehab Sa Unite a roue pivotante et chaise roulante comprenant une unite a roue pivotante

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5964473A (en) * 1994-11-18 1999-10-12 Degonda-Rehab S.A. Wheelchair for transporting or assisting the displacement of at least one user, particularly for handicapped person
US6206119B1 (en) * 1999-05-05 2001-03-27 Donald P. H. Wu Electrical wheelchair with double frame structure
US20060213705A1 (en) * 2001-10-10 2006-09-28 Molnar James H Wheelchair suspension
US20050000742A1 (en) * 2003-07-02 2005-01-06 Mulhern James P. Rear wheel drive power wheelchair
WO2006102781A2 (fr) * 2005-03-31 2006-10-05 Degonda Rehab Sa Unite a roue pivotante et chaise roulante comprenant une unite a roue pivotante

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9149398B2 (en) 2000-10-27 2015-10-06 Invacare Corporation Obstacle traversing wheelchair
US9987177B2 (en) 2000-10-27 2018-06-05 Invacare Corporation Obstacle traversing wheelchair
US9370455B2 (en) 2001-10-10 2016-06-21 Invacare Corporation Wheelchair suspension
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US9364377B2 (en) 2002-10-25 2016-06-14 Invacare Corporation Suspension for wheeled vehicles
US9925100B2 (en) 2002-10-25 2018-03-27 Invacare Corporation Suspension for wheeled vehicles
US10512572B2 (en) 2002-10-25 2019-12-24 Invacare Corporation Suspension for wheeled vehicles
US8210556B2 (en) 2005-08-18 2012-07-03 Sunrise Medical Hhg, Inc. Midwheel drive wheelchair with independent front and rear suspension
US9603762B2 (en) 2007-02-08 2017-03-28 Invacare Corporation Wheelchair suspension
US11464687B2 (en) 2007-02-08 2022-10-11 Invacare Coporation Wheelchair suspension
US10912690B2 (en) 2007-02-08 2021-02-09 Invacare Corporation Wheelchair suspension
US11819464B2 (en) 2007-02-08 2023-11-21 Invacare Corporation Wheelchair suspension
US10265229B2 (en) 2007-02-08 2019-04-23 Invacare Corporation Wheelchair suspension
US11097589B2 (en) 2007-02-14 2021-08-24 Invacare Corporation Stability control system
US11535078B2 (en) 2007-02-14 2022-12-27 Invacare Corporation Stability control system
US9346335B2 (en) 2007-02-14 2016-05-24 Invacare Corporation Stability control system
US10532626B2 (en) 2007-02-14 2020-01-14 Invacare Corporation Stability control system
US9827823B2 (en) 2007-02-14 2017-11-28 Invacare Corporation Stability control system
US11850906B2 (en) 2007-02-14 2023-12-26 Invacare Corporation Stability control system
EP2485698A1 (fr) * 2009-10-09 2012-08-15 Invacare Corporation Suspension de fauteuil roulant
WO2011044405A1 (fr) 2009-10-09 2011-04-14 Invacare Corporation Suspension de fauteuil roulant
US9913768B2 (en) 2009-10-09 2018-03-13 Invacare Corporation Wheelchair suspension
US11857470B2 (en) 2009-10-09 2024-01-02 Invacare Corporation Wheelchair suspension
EP2485698A4 (fr) * 2009-10-09 2014-11-19 Invacare Corp Suspension de fauteuil roulant
US11096845B2 (en) 2009-10-09 2021-08-24 Invacare Corporation Wheelchair suspension
US8851214B2 (en) 2010-07-15 2014-10-07 Permobil Ab Electric mid-wheel drive wheelchair
US9320661B2 (en) 2010-07-15 2016-04-26 Permobil Ab Electric mid-wheel drive wheelchair
US11234875B2 (en) 2012-02-15 2022-02-01 Invacare Corporation Wheelchair suspension
US9308143B2 (en) 2012-02-15 2016-04-12 Invacare Corporation Wheelchair suspension
US10434019B2 (en) 2012-02-15 2019-10-08 Invacare Corporation Wheelchair suspension
US9700470B2 (en) 2012-02-15 2017-07-11 Invacare Corporation Wheelchair suspension
EP2716268A3 (fr) * 2012-10-04 2015-04-22 You-Q B.V. 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.
US11903887B2 (en) 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems
US20210282990A1 (en) * 2020-03-16 2021-09-16 Honda Motor Co., Ltd. Vehicle provided with lift unit for seat
US11534353B2 (en) * 2020-03-16 2022-12-27 Honda Motor Co., Ltd. Vehicle provided with lift unit for seat

Also Published As

Publication number Publication date
EP2136758A1 (fr) 2009-12-30

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