FIELD: transport engineering. SUBSTANCE: vehicle has frame with cross-like and round wheels arranged on axle, and springs. When moving along road, round wheels are fixed by lever-operated truncated cones. Lever is held by hand of rider and is connected by tie-rod with axle-shaft of rear wheel-shock absorber on L-shaped suspension. Truncated cones are fitted on slotted axle. Round wheels with couplings are mounted on truncated cones on springs. Springs secured by one end on truncated cones and by other ends, on rims for moving upwards and sideward when running onto step edge, provide possibility of walking up the steps for cross-like wheels. Vehicle can be operated by motor. EFFECT: enlarged operating capabilities, enhanced efficiency of operation, both on road and when moving upstairs. 2 cl, 3 dwg
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Authors
Dates
1999-03-27—Published
1997-05-06—Filed