CROSS-COUNTRY VEHICLE Russian patent published in 1994 - IPC

FIELD: walking vehicles. SUBSTANCE: vehicle has body 1 installed on side ski 2 and middle ski 3. Body 1 is installed with its brackets 6 with rollers 7 in ski straight-line guides 5 and with its rollers 10, in oval guides 4 combined with pin gear 12 and drive 11. Rear link 8 front bracket has articulated link 9 with support rollers 13 and pressure rollers 14. Middle ski 3 has front stop 16 and rear stop 17 for rollers 14. Body 1 has horizontal guide 15 to rest on roller 13. With vehicle moving, each ski 2 and 3 is moved by chain drives 11 and pin gears 12 providing motion of nose parts of skis along trajectory of oval guides 4 till engagement with stop 16. Then pressure roller 14 rolls over contact path 18 and turns link 9. Height of body 1 relative to soil surface remains constant. EFFECT: enhanced smoothness of movement. 8 dwg