EP1534208A1 - Fauteuil roulant, notamment fauteuil roulant electrique - Google Patents

Fauteuil roulant, notamment fauteuil roulant electrique

Info

Publication number
EP1534208A1
EP1534208A1 EP03756432A EP03756432A EP1534208A1 EP 1534208 A1 EP1534208 A1 EP 1534208A1 EP 03756432 A EP03756432 A EP 03756432A EP 03756432 A EP03756432 A EP 03756432A EP 1534208 A1 EP1534208 A1 EP 1534208A1
Authority
EP
European Patent Office
Prior art keywords
frame
wheelchair
tubes
fork
wheelbase
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.)
Granted
Application number
EP03756432A
Other languages
German (de)
English (en)
Other versions
EP1534208B1 (fr
Inventor
Joachim Pelka
Heinrich Perk
Thomas Brendel
Andreas BIEDERSTÄDT
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.)
Otto Bock Healthcare GmbH
Original Assignee
Otto Bock Healthcare GmbH
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 Otto Bock Healthcare GmbH filed Critical Otto Bock Healthcare GmbH
Publication of EP1534208A1 publication Critical patent/EP1534208A1/fr
Application granted granted Critical
Publication of EP1534208B1 publication Critical patent/EP1534208B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S180/00—Motor vehicles
    • Y10S180/907—Motorized wheelchairs

Definitions

  • Wheelchair in particular electric wheelchair
  • the invention relates to a wheelchair, in particular an electric wheelchair, with a frame, at least one wheel which is rotatably mounted and steerable about an axis of rotation and two non-steerable wheels which are connected to one another in a wheel base R with the frame and with a seat fastened to the frame a backrest.
  • the frame has a fixed size that determines the size of the wheelchair. Due to the spectrum of the body dimensions of the possible users of wheelchairs, it is not possible to adjust the center of gravity in relation to the optimal pivot point of the wheelchair. This means that a very tall person sits too far back, so that the overall center of gravity is shifted too far back, and a very small person sits too far forward, with an overall center of gravity shifted further forward. The different position of the overall centers of gravity results in an unfavorable load distribution on the drive or steering wheels, which limits driving behavior.
  • a wheelchair is known from US 4,405, 142, in which the steerable front wheels are attached to a separate front frame.
  • the end tubes of the front frame can be inserted into tubes of the rear frame.
  • the length of the wheelchair and thus the wheelbase can be adjusted by means of parallel spaced holes in the front frame and rear frame into which bolts can be inserted.
  • Optimal alignment of the center of gravity is not possible with this configuration because the wheelbase can only be set in steps that are specified by the hole spacing.
  • the connection must therefore be made using dowel pins, which is structurally very complex. Driving on public roads and streets, driving over curbs and the like results in high vibrations. So that the fitting connection between the pipes cannot deflect, the wall thicknesses must be high and the diameter of the fitting pin must be large, which then results in a correspondingly large pipe diameter. The security of sufficient stability is then inevitably bought with a high frame weight
  • a generic wheelchair is characterized in that the wheelbase is infinitely adjustable and that the distance between the axis of rotation of the steerable wheel and the frame is adjustable.
  • the stepless adjustability of the wheelbase enables exact adjustment to the body size of the user.
  • the steering wheel turns optimally around the fork axis when it is perpendicular to the driving plane. If the distance between the axis of rotation and the frame can be adjusted, a change in the angle of the fork when telescoping can be compensated so that the vertical swivel axis is always maintained.
  • the frame is made telescopic to adjust the wheelbase.
  • at least two concentrically arranged tubes are preferably provided, the relative position of which can be fixed by at least one clamping piece.
  • the position of the tubes can be fixed by three clamping pieces, which can be braced against one another.
  • the at least one steerable wheel is preferably mounted in a fork so as to be rotatable about a horizontal axis of rotation and the fork is connected to one of the tubes so as to be pivotable about a vertical axis.
  • a plurality of vertically spaced bores are preferably provided at the lower end of the fork, into which the wheel axis can alternatively be hung.
  • the attachment of the Wheel axle can also be realized via an elongated hole with clamping, as is known, for example, with racing bicycles.
  • the position of the seat relative to the frame is preferably also adjustable, so that the seat can be optimally adapted to the change in the frame length in the horizontal plane. This can ensure that the distance between the footrests and the steered wheels is so large that they can pivot freely.
  • the frame is essentially formed by two parallel, concentrically arranged tubes, which are connected to each other by a welded cross bar and a battery holder screwed from below.
  • This configuration makes the rear tubes, which are larger in diameter (main tube), rigid, and the tubes, which are smaller in diameter and are each connected to a steered wheel, then form a telescopic front frame.
  • Figure 1 - a side view of a wheelchair
  • the electric wheelchair has a frame 20 on which two steerable front wheels 3 and two drive wheels 5 in a wheelbase R relative to one another spaced, are arranged.
  • the frame 20 is essentially formed by concentric tubes 11, 7 arranged on both sides, which are connected to one another via the seat 10 and adapter plates 6, 16.
  • the front frame which is formed by the tubes 11, can be telescoped.
  • the tube 1 1 corresponds in the outside diameter to the inside diameter of the pipe 7 and is inserted into it.
  • three clamping pieces 13, 14, 15 are provided in the longitudinal direction in the pipe 11.
  • the two outer clamping pieces 13, 1 5 are chamfered at their inner ends.
  • the middle clamping piece 14 is beveled congruently at its two ends to the clamping pieces 1 3, 1 5.
  • the three clamping pieces 1 3, 14, 1 5 are each provided with a through hole, not shown here.
  • the through hole of the inner clamping piece 1 5 is provided with an internal thread 1 7.
  • the through bore of the outer clamping piece 13 has a stepped bore 13 ', which serves to receive a screw head, not shown here.
  • the clamping pieces 1 3, 14, 1 5 are clamped to each other via a screw (not shown) which is screwed into the thread 17, the middle clamping piece 14 being pressed radially outward against the inner wall of the outer tube 7 due to the bevels, so that the relative position of the inner tube 1 1 to the outer tube 7 is infinitely fixable. It is also conceivable that the
  • Tubes 7, 1 1 can be telescoped in a stepped manner, for example by boring parallel spaced holes in the walls, which are made to overlap and through which a bolt is then inserted. Other fixations are also conceivable.
  • the outer tubes 7 are connected to one another via a welded cross member (not shown here) and a battery holder screwed on from below.
  • the drive wheels 5 are connected to the rigid tubes 7 via rear adapter plates 6.
  • a steering wheel receptacle 1 is provided which receives a fork 2 which can be pivoted about the vertical axis H and in which the steering wheels 3 are mounted so as to be rotatable about an axis of rotation D.
  • the wheel base R can be infinitely adjusted due to the telescopic nature of the frame 20.
  • the tubes 7, 11 run inclined with respect to the contact surface of the wheels 3, 5. If the tubes 7, 1 1 are telescoped, the angle of the vertical axis H of the fork 2 changes to the vertical.
  • the swiveling of the steering wheels 3 is optimal if the vertical axis H coincides with the vertical as far as possible.
  • a plurality of vertically spaced bores 4 are provided at the lower end of the fork 2, into which the wheel axis can alternatively be used, so that the distance A between the axis of rotation D of the steering wheel 3 and the Frame 20 is adjustable.
  • an elongated hole could also be provided in the fork 2, in which the axis of the steering wheel 3 can be clamped.
  • the back 8 of the seat 10 is electrically adjustable in angle.
  • the tubes 7, 11 are oval in cross section, which results in high stability.

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)
  • Automatic Cycles, And Cycles In General (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un fauteuil roulant, notamment un fauteuil roulant électrique, comportant les éléments suivants : un cadre (20), au moins une roue orientable (3) et deux roues non orientables (5), les roues étant en liaison avec le cadre (20) et montées avec un empattement (R) entre elles, ainsi qu'un siège (10) fixé au cadre (20) et doté d'un dossier (8). L'invention est caractérisée en ce que l'empattement (R) est réglable.
EP03756432A 2002-09-05 2003-09-04 Fauteuil roulant, notamment fauteuil roulant électrique Expired - Fee Related EP1534208B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10241008A DE10241008B4 (de) 2002-09-05 2002-09-05 Rollstuhl, insbesondere Elektrorollstuhl
DE10241008 2002-09-05
PCT/DE2003/002962 WO2004030596A1 (fr) 2002-09-05 2003-09-04 Fauteuil roulant, notamment fauteuil roulant electrique

Publications (2)

Publication Number Publication Date
EP1534208A1 true EP1534208A1 (fr) 2005-06-01
EP1534208B1 EP1534208B1 (fr) 2006-12-13

Family

ID=31502384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03756432A Expired - Fee Related EP1534208B1 (fr) 2002-09-05 2003-09-04 Fauteuil roulant, notamment fauteuil roulant électrique

Country Status (6)

Country Link
US (1) US7278653B2 (fr)
EP (1) EP1534208B1 (fr)
AU (1) AU2003299179A1 (fr)
CA (1) CA2495776A1 (fr)
DE (2) DE10241008B4 (fr)
WO (1) WO2004030596A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005269275B2 (en) * 2004-08-04 2010-06-03 Johanson Nominees Pty Ltd Dual mode wheelchair
EP1786376A4 (fr) * 2004-08-04 2011-11-23 Johanson Nominees Pty Ltd Fauteuil roulant à double mode
NZ539543A (en) * 2005-04-20 2008-02-29 Graham John Mahy Vehicle with adjustable track width and wheelbase
ATE532490T1 (de) 2007-07-08 2011-11-15 Prec Automation And Robotics India Ltd In ein bett umwandelbarer patientenrollstuhl mit kommode
WO2009010597A1 (fr) 2007-07-16 2009-01-22 Fundacion Tekniker Chaise roulante
US8561736B2 (en) * 2009-10-13 2013-10-22 Rehabilitation Research Of Evansville, Inc. Adjustable mid-wheel power wheelchair drive system
US20130257009A1 (en) * 2012-04-02 2013-10-03 ActivX Mobility Adjustable Wheelbase Wheelchair
CN105752144B (zh) * 2014-12-15 2018-05-11 中山阳光爱婴日用品有限公司 一种婴儿车

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285619A (en) 1965-02-11 1966-11-15 Lincoln Carriage Corp Wheel chair
DE2327118A1 (de) * 1973-05-28 1974-12-19 Oskar E Peter Spannsatz in doppelausfuehrung mit konischen elementen zur nabenbefestigung
US3971186A (en) * 1975-08-13 1976-07-27 Electronic Memories And Magnetics Corporation Wedge lock unit
DE3061731D1 (en) * 1979-04-03 1983-03-03 Vessa Ltd Wheelchair and method of manufacturing it
US4405142A (en) * 1981-03-09 1983-09-20 Stainless Medical Products, Inc. Knock down wheel chair
DE3322586C1 (de) 1983-06-23 1985-01-31 Tünkers Maschinenbau GmbH, 4030 Ratingen Behindertenrollstuhl
US4730842A (en) * 1986-04-18 1988-03-15 Wheel Ring, Inc. Adjustable wheelchair
US4824303A (en) * 1987-09-24 1989-04-25 Rexnord Inc. Locking wedge apparatus for printed circuit board
US4968050A (en) * 1988-10-11 1990-11-06 Luconex, Inc. Mobile prone stander having adjustable axis of inclination
DE8900500U1 (fr) * 1989-01-18 1989-03-02 Heintze, Hans, 5982 Neuenrade, De
USH906H (en) * 1990-06-04 1991-04-02 The United States Of America As Represented By The United States Department Of Energy Wedge assembly for electrical transformer component spacing
EP0557440B1 (fr) * 1990-11-14 1998-07-15 Invacare Corporation Chaise roulante pivotante convertible entre un mode pousse et un mode autonome
US5421598A (en) * 1991-04-26 1995-06-06 Everest & Jennings International, Ltd. Modular wheelchair
US5360224A (en) * 1991-11-08 1994-11-01 Medical Composite Technology, Inc. Wheelchair frame assembly and components for use thereon
US5480172A (en) * 1994-07-15 1996-01-02 Quickie Designs Inc. Three-wheeled competition wheelchair having an adjustable center of mass
US5584494A (en) * 1994-07-25 1996-12-17 Krumm; Paul J. Fitted recumbent bicycle frame building process
EP0702945A1 (fr) * 1994-09-13 1996-03-27 Ortopedia Gmbh Fauteuil roulant avec cadre réglable
US5782483A (en) * 1995-06-05 1998-07-21 Adorno/Rogers Technology, Inc. Adjustable wheelbase wheelchair
US5957474A (en) * 1997-02-24 1999-09-28 Pdg Inc. Wheelchair for large individuals
DE29724074U1 (de) 1997-06-20 1999-11-25 Invacare Deutschland Gmbh Rollstuhl
US6308804B1 (en) * 2000-03-13 2001-10-30 Jack E. Roberts Quick connect wheelchair brake lock
CA2311934C (fr) * 2000-06-19 2012-08-21 Phil Mundy Fauteuil roulant avec siege inclinable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004030596A1 *

Also Published As

Publication number Publication date
CA2495776A1 (fr) 2004-04-15
AU2003299179A1 (en) 2004-04-23
EP1534208B1 (fr) 2006-12-13
DE10241008A1 (de) 2004-03-11
DE50305974D1 (de) 2007-01-25
DE10241008B4 (de) 2004-07-29
US20060138835A1 (en) 2006-06-29
US7278653B2 (en) 2007-10-09
WO2004030596A1 (fr) 2004-04-15

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