Title:
【発明の名称】電動車椅子の階段昇降機構
Document Type and Number:
Japanese Patent JP3380893
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a stair lift mechanism that drives an electric wheelchair up and down stairs by the use of a drive motor on the electric wheelchair. SOLUTION: An electric wheelchair body 1 has a plurality of engaging and supporting members 8 adapted to slidably engage guide rails 22 laid along a side wall surface of stairs while maintaining a fixed attitude of the wheelchair body 1. A smaller-diameter rotary member 10 is disposed outside a driving wheel 3 on the electric wheelchair, for rotation on the same or a parallel axis. The rotary member is provided with a plurality of equiangular engaging elements 11 in the periphery, and is engaged with and disengaged from a drive motor 2 for the driving wheel 3 via a clutch 13B. In addition to the guide rails 22, stairs along which the electric wheelchair is lifted and lowered are equipped with a row of drive guides 24 for generating driving force in the lifting and lowering directions of the stairs when the engaging elements 11 are engaged with guide surfaces 24a.
Inventors:
Ken Hashino
Application Number:
JP31096999A
Publication Date:
February 24, 2003
Filing Date:
November 01, 1999
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
A61G5/00; B62D57/024; (IPC1-7): B62D57/024; A61G5/00
Domestic Patent References:
| JP1192058A |