EP0737464A2 - Rollstuhl und Fahrgestell für einen solchen Rollstuhl - Google Patents

Rollstuhl und Fahrgestell für einen solchen Rollstuhl Download PDF

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Publication number
EP0737464A2
EP0737464A2 EP96200687A EP96200687A EP0737464A2 EP 0737464 A2 EP0737464 A2 EP 0737464A2 EP 96200687 A EP96200687 A EP 96200687A EP 96200687 A EP96200687 A EP 96200687A EP 0737464 A2 EP0737464 A2 EP 0737464A2
Authority
EP
European Patent Office
Prior art keywords
arms
cross beam
wheelchair
leaf spring
undercarriage
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Withdrawn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
EP96200687A
Other languages
English (en)
French (fr)
Other versions
EP0737464A3 (de
Inventor
Mattheus Caspar Maria Meulendijks
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0737464A2 publication Critical patent/EP0737464A2/de
Publication of EP0737464A3 publication Critical patent/EP0737464A3/de
Withdrawn legal-status Critical Current

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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
    • A61G5/04—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
    • A61G5/10—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
    • A61G5/06—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

Definitions

  • the invention relates to a wheelchair provided with an undercarriage comprising two parallel arms, which are provided with rotatable wheels near their ends, whereby said arms are pivotally interconnected by a cross beam.
  • the invention furthermore relates to an undercarriage for such a wheelchair.
  • a chair mounted on said undercarriage is a chair, on which a user can be seated.
  • the chair of a known wheelchair is secured to the cross beam and, at some distance therefrom, to both arms.
  • the arms pivot about the cross beam in order to absorb said bumps.
  • the distance over which the arms can pivot is limited, however, since the chair is connected to the cross beam as well as to the arms. It is not possible to connect the chair to the cross beam only, since this will lead to undesirable pivoting of the chair and the cross beam with respect to the arms.
  • the object of the invention is to provide a wheelchair which is capable of absorbing bumps more adequately.
  • One embodiment of the wheelchair according to the invention is characterized in that said leaf spring is centrally pivoted to said part.
  • FIGS 1 and 2 show an undercarriage 1 of a wheelchair, wherein the chair is not shown for the sake of clarity.
  • the undercarriage 1 comprises to parallel arms, which are each provided with a wheel 3 near each end.
  • the wheels 3 are rotatably journalled in bearings 4 with respect to the arms 2.
  • the arms 2 are interconnected by means of a cross beam 5 extending transversely to the arms 2, whereby each arm 2 is pivoted to an end 6 of the cross beam 5 and is also capable of pivoting movement, in a direction indicated by arrow P1, about a pin 7 extending parallel to cross beam 5.
  • a chair (not shown) is mounted on cross beam 5.
  • a part, a battery container 8 in this case, is rigidly mounted on cross beam 5.
  • a battery for energizing an electromotor (not shown), by means of which the wheels 3 are driven.
  • the battery container extends from cross beam 5 to a position located beyond two wheels 3 positioned opposite each other.
  • a stack of leaf springs 11 is centrally secured to one end 9 of the battery container 8 and between ends 10 of arms 2, which stack of leaf springs extends parallel to the cross beam 5.
  • the stack of leaf springs 11 is connected to each arm 2 by means of leaf spring holders 12.
  • the centre of the stack of leaf springs 11 is encased by a fastening element 13, which is connected to battery container 8 via a pivot 14. Said pivot 14 makes it possible for the stack of leaf springs 11 to pivot in a direction indicated by arrow P2.
  • the arms 2 are also interconnected by a pull rod 15, which is pivoted to the arms 2 by means of ball joints 16.
  • the pull rod 15 maintains a predetermined spacing between the arms 2. This may also be realized by means of the leaf spring holders 12.
  • the operation of the undercarriage is as follows. When the wheelchair drives of a road which exhibits bumps, a wheel 3 of a first arm 2 moves in a direction indicated by arrow P3, and a wheel 3 of another arm 2 moves in a direction indicated by arrow P4, whereby said arms pivot about pin 7 in the direction indicated by arrow P1.
  • the arms 2 thereby move independently of each other.
  • the stack of leaf springs 11 will pivot about pivot 14 and/or deform mechanically, dependently of the movements of the wheels 3.
  • the chair mounted on the cross beam will experience a movement which depends on the movements of the wheels and the mechanical deformation of the stack of leaf springs.

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)
  • Handcart (AREA)
EP96200687A 1995-03-13 1996-03-13 Rollstuhl und Fahrgestell für einen solchen Rollstuhl Withdrawn EP0737464A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9500498 1995-03-13
NL9500498 1995-03-13

Publications (2)

Publication Number Publication Date
EP0737464A2 true EP0737464A2 (de) 1996-10-16
EP0737464A3 EP0737464A3 (de) 1997-02-05

Family

ID=19865713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96200687A Withdrawn EP0737464A3 (de) 1995-03-13 1996-03-13 Rollstuhl und Fahrgestell für einen solchen Rollstuhl

Country Status (2)

Country Link
EP (1) EP0737464A3 (de)
NL (1) NL1002601C2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000004857A1 (de) * 1998-07-21 2000-02-03 Sks Rehab Ag Rollstuhl
WO2001008623A1 (en) * 1999-07-30 2001-02-08 Invacare Corporation Wheelchair stabilizing assembly
DE10136369A1 (de) * 2001-07-26 2003-02-20 Alber Ulrich Gmbh & Co Kg Kleinfahrzeug,insbesondere Rollstuhl
DE10136368A1 (de) * 2001-07-26 2003-02-20 Alber Ulrich Gmbh & Co Kg Kleinfahrzeug, insbesondere Rollstuhl
EP1348414A3 (de) * 2002-03-27 2004-03-03 Specmat Limited Rollstühle
WO2020192805A1 (en) * 2019-03-27 2020-10-01 Dvořák - Svahové Sekačky, S.R.O. Frame, in particular of a universal carrier
EP4186483A1 (de) * 2021-11-25 2023-05-31 Atlantica Digital S.p.A. Rollstuhl oder handrad mit hinterradfederung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012764C1 (nl) 1999-08-02 1999-09-14 Tripuck Bv Constructie dienende als onderstel en wielophanging voor elektrisch voortbewogen vervoersmiddelen.
NL1015070C2 (nl) * 2000-05-01 2001-11-02 Movingpeople Net Internat B V Rolstoel en onderstel voor een rolstoel.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917306A (en) * 1974-02-07 1975-11-04 Herman J Madler Off-the-road vehicle
FR2532172B1 (fr) * 1982-08-25 1986-06-27 Couineau Pierre Fauteuil roulant de grand confort pour handicape majeur
SE450366B (sv) * 1986-04-09 1987-06-22 Magnus Rikard Frost Hjulburet chassi
GB2227462B (en) * 1988-11-16 1993-02-10 Sunrise Medical Ltd Vehicle
NL9300063A (nl) * 1993-01-13 1994-08-01 Ligtvoet Products Bv Rolstoel.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000004857A1 (de) * 1998-07-21 2000-02-03 Sks Rehab Ag Rollstuhl
WO2001008623A1 (en) * 1999-07-30 2001-02-08 Invacare Corporation Wheelchair stabilizing assembly
US7100716B2 (en) 2001-07-26 2006-09-05 Ulrich Alber Gmbh Modular wheel chair
DE10136369A1 (de) * 2001-07-26 2003-02-20 Alber Ulrich Gmbh & Co Kg Kleinfahrzeug,insbesondere Rollstuhl
DE10136368A1 (de) * 2001-07-26 2003-02-20 Alber Ulrich Gmbh & Co Kg Kleinfahrzeug, insbesondere Rollstuhl
DE10136368C2 (de) * 2001-07-26 2003-05-28 Alber Ulrich Gmbh & Co Kg Kleinfahrzeug, insbesondere Rollstuhl
DE10136369C2 (de) * 2001-07-26 2003-05-28 Alber Ulrich Gmbh & Co Kg Kleinfahrzeug,insbesondere Rollstuhl
EP1348414A3 (de) * 2002-03-27 2004-03-03 Specmat Limited Rollstühle
US6994364B2 (en) 2002-03-27 2006-02-07 Specmat Limited Wheelchairs
WO2020192805A1 (en) * 2019-03-27 2020-10-01 Dvořák - Svahové Sekačky, S.R.O. Frame, in particular of a universal carrier
EP3945776A1 (de) * 2019-03-27 2022-02-09 DVORÁK - svahové sekacky s.r.o. Rahmen, insbesondere eines universalträgers
US11707957B2 (en) 2019-03-27 2023-07-25 Dvorák—Svahové Sekacky, S. R.O Frame, in particular of a universal carrier
EP4186483A1 (de) * 2021-11-25 2023-05-31 Atlantica Digital S.p.A. Rollstuhl oder handrad mit hinterradfederung

Also Published As

Publication number Publication date
NL1002601C2 (en) 1996-09-18
EP0737464A3 (de) 1997-02-05
NL1002601A1 (nl) 1996-09-18

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