CA2463493A1 - Wheelchair suspension - Google Patents

Wheelchair suspension Download PDF

Info

Publication number
CA2463493A1
CA2463493A1 CA002463493A CA2463493A CA2463493A1 CA 2463493 A1 CA2463493 A1 CA 2463493A1 CA 002463493 A CA002463493 A CA 002463493A CA 2463493 A CA2463493 A CA 2463493A CA 2463493 A1 CA2463493 A1 CA 2463493A1
Authority
CA
Canada
Prior art keywords
assembly
frame member
pivoting
linkage
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.)
Granted
Application number
CA002463493A
Other languages
French (fr)
Other versions
CA2463493C (en
Inventor
James H. Molnar
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.)
Invacare Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25521924&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2463493(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to CA2605373A priority Critical patent/CA2605373C/en
Publication of CA2463493A1 publication Critical patent/CA2463493A1/en
Application granted granted Critical
Publication of CA2463493C publication Critical patent/CA2463493C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06Chairs 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
    • A61G5/063Chairs 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 with eccentrically mounted wheels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06Chairs 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/043Mid wheel drive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1078Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G5/00Resilient suspensions for a set of tandem wheels or axles having interrelated movements
    • B60G5/01Resilient suspensions for a set of tandem wheels or axles having interrelated movements the set being characterised by having more than two successive axles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00General characteristics of devices
    • A61G2203/10General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/14Joysticks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00Indexing codes relating to the type of vehicle
    • B60G2300/24Wheelchairs
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S180/00Motor vehicles
    • Y10S180/907Motorized wheelchairs
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00Chairs and seats
    • Y10S297/04Wheelchair

Abstract

The present invention has a plurality of pivoting linkages to lift and retract a front castor assembly to facilitate traversing an obstacle or rough terrain.
In this regard, a wheelchair suspension having a frame member and at least one a pivoting assembly is provided. The pivoting assembly has, for example, a first linkage pivotally coupled to the frame member and a second linkage pivotally coupled to the frame member. At least one front caster assembly is coupled to the first and second linkages wherein upward pivotal movement of the first linkage causes the caster assembly to undergo upward vertical movement and upward pivotal movement of the second linkage causes the caster assembly to undergo lateral movement inward toward the wheelchair.
CA002463493A 2001-10-10 2002-09-20 Wheelchair suspension Expired - Lifetime CA2463493C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2605373A CA2605373C (en) 2001-10-10 2002-09-20 Wheelchair suspension

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/974,348 2001-10-10
US09/974,348 US7040429B2 (en) 2001-10-10 2001-10-10 Wheelchair suspension
PCT/US2002/029998 WO2003030800A1 (en) 2001-10-10 2002-09-20 Wheelchair suspension

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2605373A Division CA2605373C (en) 2001-10-10 2002-09-20 Wheelchair suspension

Publications (2)

Publication Number Publication Date
CA2463493A1 true CA2463493A1 (en) 2003-04-17
CA2463493C CA2463493C (en) 2008-02-12

Family

ID=25521924

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002463493A Expired - Lifetime CA2463493C (en) 2001-10-10 2002-09-20 Wheelchair suspension
CA2821496A Expired - Lifetime CA2821496C (en) 2001-10-10 2002-09-20 Wheelchair suspension
CA 2690500 Expired - Lifetime CA2690500C (en) 2001-10-10 2002-09-20 Wheelchair suspension

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA2821496A Expired - Lifetime CA2821496C (en) 2001-10-10 2002-09-20 Wheelchair suspension
CA 2690500 Expired - Lifetime CA2690500C (en) 2001-10-10 2002-09-20 Wheelchair suspension

Country Status (6)

Country Link
US (7) US7040429B2 (en)
EP (2) EP1434545B1 (en)
AU (4) AU2002341765B2 (en)
CA (3) CA2463493C (en)
NZ (1) NZ532715A (en)
WO (1) WO2003030800A1 (en)

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US7472767B2 (en) 2009-01-06

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