FIELD: personal items; wheel vehicles.
SUBSTANCE: wheel chair contains a frame with a seat. The frame is assembled on two driven self orientating wheels and two yokes. Axes of driving wheels and a rim are secured to the yokes and are tied with rotation of the driving wheels. The rim of which driving wheel has its own rotation axis. The rotation axis of each rim is located above the rotation axis of the driving wheel and is equipped with a tooth gear. The tooth gear is coaxial with the rim. A gear unit of various diameters is attached coaxially to each driving wheel. One of gears meshes with a tooth wheel of the rim, which in its turn is designed to mesh with gears of other diameters.
EFFECT: convenience of speed changes.
5 cl, 12 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2442555C1 |
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