WHEELCHAIR FOR CRIPPLE WITH END-TYPE CANTERPILLAR CHAIN Russian patent published in 2008 - IPC A61G5/06 

FIELD: transport.

SUBSTANCE: invention relates self-moving railless means of transport and can be used be the cripples without lower limbs or their mobility. Wheelchair for cripples with end-type caterpillar chain includes side driving wheels with independent drive, frames with rollers and rotation transmitting units from driving axis to rim, and two self-oriented driven wheels. Driven wheels are installed at spring rocker ends. Spring rocker is located in longitudinal plane of wheelchair. Driving wheels create pair of rims with external gearing wheels. External gearing wheels are connected with each other with driving gear-roller and backplane bus-caterpillar. Backplane bus-caterpillar seized both rims. Mechanism of orientation and fixation of rims pair concerning wheelchair is, at least, for four positions. Bus-caterpillar ay less coupling size is made in form of gear rim along the whole moving line.

EFFECT: widening of functional abilities of wheelchair for cripples.

3 dwg