| 摘要 |
The tricycle does not need any force transmission chain. The axes of rear wheels are held against tetrahedrons supported by a carrier. The carriers are slidably and lockably fitted on two parallel bars, transverse to the tricycle long axis and are releasably secured. Thus the width of the vehicle can be also adjusted. The bars are resiliently coupled to the longitudinal frame via another carrier. The front wheel, complete with pedal drive, is separable from the longitudinal frame. A roof with solar cells may provide current for optional accumulator.
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