AUXILIARY WHEEL WITH EXTENDING GROUSERS Russian patent published in 2010 - IPC B60B15/26 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, namely to device intended for increasing cross-country capacity in motion in conditions of impassability, bad weather and on greasy road. Proposed wheel represents a hollow drum-type radially-equal wheel made from light-alloy material and secured to the main wheel. It comprises shoulder levers pivoted at points on inner side of the wheel outer periphery and spring-loaded at the pints of 1/3 of total length, extending grousers arranged inside wheel tread opposite guide holes, air tube fitted inside drum central part and communicated with air valve mounted in transport facility cab. Protective metallised rubberised wheel with thickness of at least 1.5 cm and width mating the wheel drum width is arranged between air tube and grouser shoulder levers. Wheel tread and grousers have holes to receive grouser locking studs. Wheel-drum central part is closed by cover.

EFFECT: increased cross-country capacity, ease of manufacture and higher reliability.

4 dwg