EP0988848A2 - Fauteuil roulant à propulsion électrique - Google Patents

Fauteuil roulant à propulsion électrique Download PDF

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Publication number
EP0988848A2
EP0988848A2 EP99118420A EP99118420A EP0988848A2 EP 0988848 A2 EP0988848 A2 EP 0988848A2 EP 99118420 A EP99118420 A EP 99118420A EP 99118420 A EP99118420 A EP 99118420A EP 0988848 A2 EP0988848 A2 EP 0988848A2
Authority
EP
European Patent Office
Prior art keywords
castors
travel
electric wheelchair
lifting
wheelchair
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Withdrawn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
EP99118420A
Other languages
German (de)
English (en)
Other versions
EP0988848A3 (fr
Inventor
Gabhard Hofstetter
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.)
Sopur Medizintechnik GmbH
Original Assignee
Sopur Medizintechnik 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 Sopur Medizintechnik GmbH filed Critical Sopur Medizintechnik GmbH
Publication of EP0988848A2 publication Critical patent/EP0988848A2/fr
Publication of EP0988848A3 publication Critical patent/EP0988848A3/fr
Withdrawn legal-status Critical Current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
    • A61G5/042—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
    • 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 an electric wheelchair with two each on a chassis frame, on the one Seat is added for a user, drive wheels mounted and at a distance from it in the opposite direction, swivel castors pivotable about vertical axes, and with at least one in front of the castors in the direction of travel arranged device for lifting the castors when Passing over steps such as the edges of sidewalks.
  • Such “sidewalk aids” are in Direction of travel between those pivotable about vertical axes Casters protruding support levers on the wheelchair frame are pivotally articulated. These support levers set at Approach a sidewalk edge to be overcome on the top on this and then pivot the next one Ancestors of the wheelchair around their articulation point on the wheelchair frame, whereby the wheelchair in the area of the front castors is raised so that the horizontal roller axles get over the top of the sidewalk. From this the castors are then able to lift out unproblematic with the further ancestor of the wheelchair to ascend to levels that are altogether high of about 10 cm.
  • the Device for lifting the castors when driving over a step has at least one support roller which by means of a transverse to the direction of travel and at a distance from the road that is the height of the maximum exceeds the steps to be crossed Axis is rotatably supported at a distance from the road.
  • a pivotally articulated support lever sees the invention therefore a rotatably mounted support roller before moving up to a step to be overcome given the position of its axis of rotation at the top of the step attacks and the ancestor of the wheelchair while climbing onto the upper edge at the same time the wheelchair in the area of the castors raises that as the wheelchair continues to move forward on the step also the castors on the top edge level up.
  • a sensible design of the electric wheelchair according to the invention in contrast, provides that the drive wheels are in the direction of travel and that the Device for lifting the rear - in the direction of travel Swivel castors when crossing a step near the swivel castors arranged between these and the drive wheels is.
  • a wheelchair designed in this way is compact and the "sidewalk aid" is arranged in the area of the chassis without bulky about this
  • the device for lifting the castors when driving over a level in the form of an attacking level Support role can be designed differently his.
  • a particularly simple "sidewalk aid" results However, if the Invention the support roller is designed as a wheel.
  • the device for lifting the Swivel castors when crossing one step also several one behind the other along a line rising in the direction of travel comprise rotatably mounted support rollers, wherein the axis of rotation of the front support roller in the direction of travel in one the height of the maximum level to be crossed exceeding distance from the road is arranged.
  • Such training of the "sidewalk aid” ensures a gradual ascent to one Sidewalk or other steps, gradually adding the support rollers arranged one behind the other in the direction of travel meet the edge of the step and then the top of the step rising up.
  • Another improvement is according to another training realized in that along one Arranged one behind the other in the line rising in the direction of travel Support rollers an endless circulating agent is guided, which is, for example, a webbing can, the lower strand when crossing a step attacks at the edge and then at the further ancestor of the wheelchair gradually rises to the step.
  • an endless circulating agent is guided, which is, for example, a webbing can, the lower strand when crossing a step attacks at the edge and then at the further ancestor of the wheelchair gradually rises to the step.
  • the electric wheelchair 10 illustrated in the drawing has a compact chassis frame 11, on the two in the known way in the direction of travel Drive wheels 12 and two pivotable about vertical axes rear castors 13 are mounted.
  • the in the direction of travel drive wheels 12 arranged at the front are essential larger diameter than the rear castors 13.
  • On the chassis frame 11 is of no further interest here Way, a seat frame 14 with a seat 15 added and there is a control console next to the seat 16.
  • the seat frame 14 has a height-adjustable footrest 17 connected, which protrudes between the front drive wheels.
  • the chassis frame 11 has a central support plate 20, located vertically between the front drive wheels 12 and the rear pivotable about vertical axes Steering wheels 13 extends. There is an in on the support plate Direction towards the castors 13 centrally between them protruding bracket 21 attached, which in a fork-shaped Recording 22 spaced from in the direction of travel the castors 13 a rotatable about a horizontal axis 23 stored support wheel 24 receives.
  • the jockey wheel 24 has a smaller diameter than the castors 13 on, but is at a distance with its axis of rotation 23 stored by the roadway 25, which is larger than that maximum height of the steps to be overcome.

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)
  • Organic Insulating Materials (AREA)
  • Inert Electrodes (AREA)
  • Hybrid Cells (AREA)
EP99118420A 1998-09-26 1999-09-17 Fauteuil roulant à propulsion électrique Withdrawn EP0988848A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29817336U 1998-09-26
DE29817336U DE29817336U1 (de) 1998-09-26 1998-09-26 Elektro-Rollstuhl

Publications (2)

Publication Number Publication Date
EP0988848A2 true EP0988848A2 (fr) 2000-03-29
EP0988848A3 EP0988848A3 (fr) 2000-11-15

Family

ID=8063216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118420A Withdrawn EP0988848A3 (fr) 1998-09-26 1999-09-17 Fauteuil roulant à propulsion électrique

Country Status (2)

Country Link
EP (1) EP0988848A3 (fr)
DE (1) DE29817336U1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005097033A1 (fr) * 2004-04-08 2005-10-20 Levo Ag Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation
US7040429B2 (en) 2001-10-10 2006-05-09 Invacare Corporation Wheelchair suspension
US9603762B2 (en) 2007-02-08 2017-03-28 Invacare Corporation Wheelchair suspension
US9700470B2 (en) 2012-02-15 2017-07-11 Invacare Corporation Wheelchair suspension
US9827823B2 (en) 2007-02-14 2017-11-28 Invacare Corporation Stability control system
US9925100B2 (en) 2002-10-25 2018-03-27 Invacare Corporation Suspension for wheeled vehicles
US9987177B2 (en) 2000-10-27 2018-06-05 Invacare Corporation Obstacle traversing wheelchair
US11096845B2 (en) 2009-10-09 2021-08-24 Invacare Corporation Wheelchair suspension
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
US7066290B2 (en) 2001-10-19 2006-06-27 Invacare Corp. Wheelchair suspension having pivotal motor mount

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712357A (en) * 1953-08-04 1955-07-05 Moor Self-propelled wheel chair and steering control therefor
GB1588913A (en) * 1978-05-08 1981-04-29 Rayment E Wheelchair
GB2111000B (en) * 1981-10-20 1985-05-09 Albert Edward Frederick Dudley Wheelchair attachment
AT384167B (de) * 1985-12-19 1987-10-12 Bayer Ulrich Rollstuhl
GB2199291B (en) * 1986-12-22 1991-05-22 Everest & Jennings Limited Wheelchair for negotiating kerbs and the like

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9987177B2 (en) 2000-10-27 2018-06-05 Invacare Corporation Obstacle traversing wheelchair
US7040429B2 (en) 2001-10-10 2006-05-09 Invacare Corporation Wheelchair suspension
US9925100B2 (en) 2002-10-25 2018-03-27 Invacare Corporation Suspension for wheeled vehicles
US11213441B2 (en) 2002-10-25 2022-01-04 Invacare Corporation Suspension for wheeled vehicles
US10512572B2 (en) 2002-10-25 2019-12-24 Invacare Corporation Suspension for wheeled vehicles
WO2005097033A1 (fr) * 2004-04-08 2005-10-20 Levo Ag Fauteuil roulant a entrainement par roues medianes, notamment fauteuil roulant a fonction d'elevation
US10912690B2 (en) 2007-02-08 2021-02-09 Invacare Corporation Wheelchair suspension
US9603762B2 (en) 2007-02-08 2017-03-28 Invacare Corporation Wheelchair suspension
US11819464B2 (en) 2007-02-08 2023-11-21 Invacare Corporation Wheelchair suspension
US11464687B2 (en) 2007-02-08 2022-10-11 Invacare Coporation Wheelchair suspension
US10265229B2 (en) 2007-02-08 2019-04-23 Invacare Corporation Wheelchair suspension
US10532626B2 (en) 2007-02-14 2020-01-14 Invacare Corporation Stability control system
US11097589B2 (en) 2007-02-14 2021-08-24 Invacare Corporation Stability control system
US9827823B2 (en) 2007-02-14 2017-11-28 Invacare Corporation Stability control system
US11535078B2 (en) 2007-02-14 2022-12-27 Invacare Corporation Stability control system
US11096845B2 (en) 2009-10-09 2021-08-24 Invacare Corporation Wheelchair suspension
US11857470B2 (en) 2009-10-09 2024-01-02 Invacare Corporation Wheelchair suspension
US10434019B2 (en) 2012-02-15 2019-10-08 Invacare Corporation Wheelchair suspension
US11234875B2 (en) 2012-02-15 2022-02-01 Invacare Corporation Wheelchair suspension
US9700470B2 (en) 2012-02-15 2017-07-11 Invacare Corporation Wheelchair suspension
US11903887B2 (en) 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems

Also Published As

Publication number Publication date
DE29817336U1 (de) 1999-02-11
EP0988848A3 (fr) 2000-11-15

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