INVALID CHAIR Russian patent published in 1997 - IPC

FIELD: medicine; vehicles for disabled persons. SUBSTANCE: invalid chair has carrying frame 1 with front and rear driving wheels 7, 6 made in the form of disks 19, 20 with toothed path on inner surface along which propelling devices 11 and 12 move. Propelling devices are set into motion by brushless motors 18, 24 and elastic edging 21, 22 with external teeth. Chair has also limiting wheels 8, 9. Motors 18, 24 are controlled from control panel 5 and are supplied from storage batteries installed in battery containers 4. EFFECT: enlarged operating capabilities. 3 dwg