EP 0287857 B1 19910529 - STAIR-CLIMBING DEVICE, SUCH AS FOR INVALIDS' WHEELCHAIRS
Title (en)
STAIR-CLIMBING DEVICE, SUCH AS FOR INVALIDS' WHEELCHAIRS
Publication
Application
Priority
DE 3713564 A 19870423
Abstract (en)
[origin: EP0287857A2] The stair-climbing device (15) which is suitable for example for wheelchairs (10) and driven by an electric motor has two running wheel pairs (17a/17b) which swivel about drive shafts (20a, 20b) which are separate and eccentric but driven together and which running wheel pairs thus successively come to rest on a step of the stair or are lowered thereon. At the same time, blocking of the individual running wheels during their swivel movement can be carried out by means of braking devices assigned to the individual running wheels (17a, 17b) in order to prevent an undesired rolling away of the wheelchair (10) over the edge of a stair. <IMAGE>
IPC 1-7
IPC 8 full level
A61G 5/02 (2006.01); A61G 5/04 (2006.01); A61G 5/06 (2006.01); B62B 3/00 (2006.01); B62B 5/02 (2006.01)
CPC (source: EP US)
A61G 5/061 (2013.01 - EP US); A61G 5/063 (2013.01 - EP US); Y10S 180/907 (2013.01 - EP US); Y10S 280/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0287857 A2 19881026; EP 0287857 A3 19890322; EP 0287857 B1 19910529; AT E63873 T1 19910615; AU 1463788 A 19881027; AU 613358 B2 19910801; CA 1313891 C 19930223; DE 3713564 A1 19881110; DE 3713564 C2 19890524; ES 2022506 B3 19911201; JP H0651473 B2 19940706; JP S63275477 A 19881114; US 5263547 A 19931123
DOCDB simple family (application)
EP 88105074 A 19880329; AT 88105074 T 19880329; AU 1463788 A 19880414; CA 564925 A 19880422; DE 3713564 A 19870423; ES 88105074 T 19880329; JP 9699388 A 19880421; US 17602588 A 19880330