Electric Wheel Chair Abstract As a rule, wheel-chairs have large(-diameter) drive wheels (3) and small(-diameter) steerable wheels (5), and wheel-chairs for indoor operation have their drive wheels as their rear wheels, while wheel-chairs for outdoor...
Electric Wheel Chair Abstract The electric wheel-chair comprises drive wheels on one axle group, and swivel wheels on a second axle group, with the swivel wheels being either freely pivotable or positively steerable by an engageable steering drive. T...
Electric Wheel Chair Abstract A multi-fumction electric wheel-chair is disclosed which comprises: a main frame foundation having two rollers, a front portion, a back portion; a chair-like sitting block placed above the main frame foundation, the sitt...