CROSS-COUNTRY VEHICLE Russian patent published in 1994 - IPC

FIELD: walking vehicles. SUBSTANCE: vehicle has body 1 connected through walking mechanism with middle ski 3 and two side skis 2. Fitted on ends of all skis are grousers connected with vertical travel motion drives. One common grouser is mounted on two side skis 2. This grouser is made in form of vanes installed on middle part of U-shaped beam 12 whose side parts are hinge-connected with skis 2 and with beam travel motion mechanism. Length of each side part of beam 12 is not less than length of ski step. To increase traction beam 12 with wide grouser is lowered to ground by means of power cylinder 11, and grouser holds skis 2 when body 1 with hook 19 moves along guides 4 and 5 of skis 2. EFFECT: increased traction. 2 dwg