SNOW MOBILE DRIVE PROCESS AND SNOW MOBILE TO THIS END Russian patent published in 2014 - IPC B62M27/00 B62M29/00 

FIELD: transport.

SUBSTANCE: said propulsor is composed of three-arm spider driven by chain gearing. Skis are arranged at vertices of said spider to spin about said spider at their attachment to arms. Every ski consists of at least two parts articulated to allow skis displacement in vertical plane at rotation of the main spider. Dents are made at ski running surface to make skis run in one direction. Ice mobile rolling is performed at releasing of both skids from contact with bearing surface. Snow mobile comprised frame with bearing surfaces, preferably, skis. Frame supports seat and controls, mechanical drive including engine with chain gearing and propulsor to convert and to transmit driver's physical force to propulsor elements interacting with bearing surface and driving said snow mobile.

EFFECT: simplified design, better slip.

2 cl, 2 dwg