FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly, to additional caterpillar drives of bicycles. Drive includes frame, caterpillar track, drive rollers, caterpillar rolls or rollers. Design is mounted on wheel axle, bicycle frame or wheel axle and bicycle frame providing thrust of drive rollers to wheel with further transfer of rotation to caterpillar rolls and caterpillar. Design is made with possibility of rotation along axis between working position approximately equal to horizontal, and nonworking position, in which parts of caterpillar drive do not touch ground or road surface.
EFFECT: fast folding and unfolding of caterpillar drive.
8 cl, 3 dwg
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