GB2465624A - Wheelchair stability system which automatically adjusts position of seat according to terrain - Google Patents

Wheelchair stability system which automatically adjusts position of seat according to terrain Download PDF

Info

Publication number
GB2465624A
GB2465624A GB0821651A GB0821651A GB2465624A GB 2465624 A GB2465624 A GB 2465624A GB 0821651 A GB0821651 A GB 0821651A GB 0821651 A GB0821651 A GB 0821651A GB 2465624 A GB2465624 A GB 2465624A
Authority
GB
United Kingdom
Prior art keywords
wheelchair
terrain
stability system
seat
slope
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Withdrawn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
GB0821651A
Other versions
GB0821651D0 (en
Inventor
William Wells
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
Priority to GB0821651A priority Critical patent/GB2465624A/en
Publication of GB0821651D0 publication Critical patent/GB0821651D0/en
Publication of GB2465624A publication Critical patent/GB2465624A/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Withdrawn legal-status Critical Current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
    • A61G5/10—Parts, details or accessories
    • A61G5/1089—Anti-tip devices
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • A61G2005/1089—
    • 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
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/42—General characteristics of devices characterised by sensor means for inclination
    • 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

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)
  • Seats For Vehicles (AREA)

Abstract

A wheelchair stability system is provided for maintaining safe and comfortable passage over varying terrain by automatically adjusting the centre of gravity of the wheelchair. A wheelchair comprises at least one tilt sensor that is used to detect changes in terrain to determine and control the automatic positioning of the seat to compensate for changes in slope or terrain. The wheelchair seat may be slid to a forward position when the wheelchair is travelling up a slope, and tilted back when the wheelchair is travelling down a slope. The system maximises stability and traction of the wheelchair.

Description

Patent SDecification for Wheelchair stabilisation on rough terrain.
Title: -Wheelchair Stabilisation.
Background:-
This invention relates to the need to maintain a small wheelbase for manoeuvrability which reduces the stability on all surfaces that are not smooth and level. This limits the wheelchair to pavements, surfaced tracks and roads or home use. All rough off road, beach, or forest tracks are completely out of bounds.
Statement of invention:-
To overcome this problem, the seat on the wheelchair must move as the terrain changes to keep the centre of gravity in the correct position. This provides maximum stability and traction over rough terrain and as it may be possible for the user to "get it wrong" or not be able to control the system manually, the operation must be automatic.
Advantages:-The automatic seat movement will ensure maximum wheelchair stability and traction along with greater user safety and comfort.
Detailed description:-
The wheelchair is fitted with tilt sensors on each plane that the seat will move through. These will sense the changes in the terrain over which the chassis moves. In fig,1 the chassis is level so none of the sensors are activated and the seat remains level with the ground.
In Fig.2 the ground changes to up hill as the wheelchair progresses which would normally tip the wheelchair backwards. The level sensors react to the change and the seat is moved forward to bring the centre of gravity forward increasing traction and stability. The user is tilted back into the safety of the seat and remains at the same angle as the ground.
In Fig.3 the ground goes downhill which would normally tip the wheelchair forward. The level sensors are again triggered and react to the change. The centre of gravity changes in relation to the drive wheel position maintaining a safe and comfortable descent of the slope.

Claims (3)

  1. * CLAIMS:
  2. 2 First Claim:- 1. A wheelchair stability system that will maintain safe and comfortable passage over varying terrain by adjusting the centre of gravity.
    Dependant claim:- 2. A wheelchair stability system as described in claim 1 that has sensors in 2 planes.
  3. 3. A wheelchair stability system as described in claim 1 with multiple sensors in several planes to increase safety and comfort.
GB0821651A 2008-11-27 2008-11-27 Wheelchair stability system which automatically adjusts position of seat according to terrain Withdrawn GB2465624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0821651A GB2465624A (en) 2008-11-27 2008-11-27 Wheelchair stability system which automatically adjusts position of seat according to terrain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0821651A GB2465624A (en) 2008-11-27 2008-11-27 Wheelchair stability system which automatically adjusts position of seat according to terrain

Publications (2)

Publication Number Publication Date
GB0821651D0 GB0821651D0 (en) 2008-12-31
GB2465624A true GB2465624A (en) 2010-06-02

Family

ID=40230894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0821651A Withdrawn GB2465624A (en) 2008-11-27 2008-11-27 Wheelchair stability system which automatically adjusts position of seat according to terrain

Country Status (1)

Country Link
GB (1) GB2465624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110617793A (en) * 2019-09-23 2019-12-27 内蒙古机电职业技术学院 Method and system for detecting angular position of stair climbing wheelchair and readable storage medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0956751A (en) * 1995-08-22 1997-03-04 Nobutsugu Ishii Caterpillar-type wheelchair
DE19821451A1 (en) * 1997-05-14 1998-11-19 Exedy Corp Vehicle with chassis, rail and seat-holder
EP0960613A2 (en) * 1998-05-25 1999-12-01 Georges Gautschi Vehicle for invalids
EP1077665A1 (en) * 1998-03-31 2001-02-28 Hoveround Corporation Personal mobility vehicle
JP2004016308A (en) * 2002-06-13 2004-01-22 Japan Science & Technology Corp Seat surface stabilizing and supporting motor-driven wheelchair
US20040168842A1 (en) * 2003-02-27 2004-09-02 Chuan Chen Wen Self-leveling and balancing vehicle
WO2005079174A2 (en) * 2004-02-24 2005-09-01 Seo-Lim Kim The 3d weight center movement which copes with an irregularity movement byeonuigag and water level hol device
US20060061179A1 (en) * 2004-09-18 2006-03-23 Otto Bock Health Care Ip Gmbh & Co.Kg Vehicle with driver's seat with adjustable inclination

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0956751A (en) * 1995-08-22 1997-03-04 Nobutsugu Ishii Caterpillar-type wheelchair
DE19821451A1 (en) * 1997-05-14 1998-11-19 Exedy Corp Vehicle with chassis, rail and seat-holder
EP1077665A1 (en) * 1998-03-31 2001-02-28 Hoveround Corporation Personal mobility vehicle
EP0960613A2 (en) * 1998-05-25 1999-12-01 Georges Gautschi Vehicle for invalids
JP2004016308A (en) * 2002-06-13 2004-01-22 Japan Science & Technology Corp Seat surface stabilizing and supporting motor-driven wheelchair
US20040168842A1 (en) * 2003-02-27 2004-09-02 Chuan Chen Wen Self-leveling and balancing vehicle
WO2005079174A2 (en) * 2004-02-24 2005-09-01 Seo-Lim Kim The 3d weight center movement which copes with an irregularity movement byeonuigag and water level hol device
US20060061179A1 (en) * 2004-09-18 2006-03-23 Otto Bock Health Care Ip Gmbh & Co.Kg Vehicle with driver's seat with adjustable inclination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110617793A (en) * 2019-09-23 2019-12-27 内蒙古机电职业技术学院 Method and system for detecting angular position of stair climbing wheelchair and readable storage medium

Also Published As

Publication number Publication date
GB0821651D0 (en) 2008-12-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)