SNOW MOBILE SLIDING Russian patent published in 2014 - IPC B62B13/08 B62D57/02 

FIELD: transport.

SUBSTANCE: snow mobile propulsor is composed of two skis with dents to make skis move in one direction. Every ski is arranged on snow mobile frame one side and at two L-like brackets on both sides. Every bracket can rotate radially and is fitted by its long end on the shaft whereat chain drive sprocket is fitted. Said brackets are arranged diametrically opposite similar brackets on opposite side. Shaft with sprocket is fitted at the frame. Opposite end of every bracket is connected with mating point of appropriate ski fitted to make in-planet parallel motion parallel with snow mobile vertical plane. Sprockets of chain gearing are fitted on bracket axles, chain gearing gear ratio making the unity. Axle of one of said supports is engaged with chain gearing drive sprocket. Snow mobile rolling is performed at releasing of both skids from contact with bearing surface.

EFFECT: decreased size, better slip.

2 dwg