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EP0861649A3 - Wheel chair - Google Patents

Wheel chair Download PDF

Info

Publication number
EP0861649A3
EP0861649A3 EP98200480A EP98200480A EP0861649A3 EP 0861649 A3 EP0861649 A3 EP 0861649A3 EP 98200480 A EP98200480 A EP 98200480A EP 98200480 A EP98200480 A EP 98200480A EP 0861649 A3 EP0861649 A3 EP 0861649A3
Authority
EP
European Patent Office
Prior art keywords
control unit
control
signal
dependence
wheel chair
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Withdrawn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
EP98200480A
Other languages
German (de)
French (fr)
Other versions
EP0861649A2 (en
Inventor
Petrus Johannes Scheulderman
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.)
Richard van Seenus Nederland BV
Original Assignee
Richard van Seenus Nederland BV
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 Richard van Seenus Nederland BV filed Critical Richard van Seenus Nederland BV
Publication of EP0861649A2 publication Critical patent/EP0861649A2/en
Publication of EP0861649A3 publication Critical patent/EP0861649A3/en
Withdrawn legal-status Critical Current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
    • A61G5/042—Front 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/14—Joysticks

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)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

A wheel chair comprises a frame (1) and two front wheels (2, 3), which can each be driven by an electric motor (4, 5), and at least one centrally positioned castor (6, 7) present on the rear side, which is provided with a pivot pin (8) comprising a straight-ahead position. Furthermore a control unit (13) for the electric motors is provided, which control unit comprises a control element (14), by means of which the user can control the speed and the direction of the wheel chair. The control element delivers a speed signal and a directional signal, whereby the control unit controls the electric motors in dependence on the output signals of the control element. A position sensor (17) delivers a rotational position signal in dependence on the rotational position of the pivot pin of the castor, whereby control means (18-21) are provided, which deliver a compensated directional signal to the control unit, such that the control unit controls the electric motors partially in dependence on the rotational position signal.
EP98200480A 1997-02-17 1998-02-16 Wheel chair Withdrawn EP0861649A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005297A NL1005297C1 (en) 1997-02-17 1997-02-17 Wheelchair.
NL1005297 1997-02-17

Publications (2)

Publication Number Publication Date
EP0861649A2 EP0861649A2 (en) 1998-09-02
EP0861649A3 true EP0861649A3 (en) 1999-06-23

Family

ID=19764436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98200480A Withdrawn EP0861649A3 (en) 1997-02-17 1998-02-16 Wheel chair

Country Status (2)

Country Link
EP (1) EP0861649A3 (en)
NL (1) NL1005297C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100435765C (en) * 2005-03-08 2008-11-26 中国科学院自动化研究所 Control system of imbedded type intelligent wheel chair and its method
US10864127B1 (en) 2017-05-09 2020-12-15 Pride Mobility Products Corporation System and method for correcting steering of a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549624A (en) * 1984-10-12 1985-10-29 Everest & Jennings, Inc. Wheelchair direction control means
WO1994020325A1 (en) * 1993-03-05 1994-09-15 Ligtvoet Products B.V. Drive control device for a vehicle, in particular for a wheelchair, and vehicle provided with such a drive control device
EP0714648A1 (en) * 1994-11-29 1996-06-05 Richard Van Seenus Nederland B.V. Wheelchair frame and castor assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549624A (en) * 1984-10-12 1985-10-29 Everest & Jennings, Inc. Wheelchair direction control means
WO1994020325A1 (en) * 1993-03-05 1994-09-15 Ligtvoet Products B.V. Drive control device for a vehicle, in particular for a wheelchair, and vehicle provided with such a drive control device
EP0714648A1 (en) * 1994-11-29 1996-06-05 Richard Van Seenus Nederland B.V. Wheelchair frame and castor assembly
EP0800809A2 (en) * 1994-11-29 1997-10-15 Richard Van Seenus Nederland B.V. Wheelchair frame

Also Published As

Publication number Publication date
EP0861649A2 (en) 1998-09-02
NL1005297C1 (en) 1998-08-18

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