FIELD: transport.
SUBSTANCE: invention relates to transport facilities, namely, to bicycles. Proposed bicycle comprises frame, wheels and pitmen drive. Said drive represents an eccentric drive and comprises drive sprocket, rockers and levers. One lever has its one end articulated with rocker free end, while another end of the lever accommodates pedal. Second lever is similarly jointed with another rocker. Articulation between levers and rockers is spring loaded and incorporates adjustable elements to limit lever turn angle relative to rockers and engagement elements to limit extreme position of levers relative to rockers. Length of levers makes 0.25 to 0.95 of that of rockers in pitmen drive. Note here that pedal axle in initial position does not extend beyond its size in rocker.
EFFECT: simplified design and higher efficiency.
3 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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| LIGHTING DEVICE | 2007 |
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| BICYCLE DRIVE WITH OFFSET CRANK SLIDER MECHANISM | 2011 |
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