Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1993-08-24
1994-12-06
Rice, Kenneth R.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180190, 180 956, 305 16, 305 24, B62M 2702
Patent
active
053701984
ABSTRACT:
A snowmobile construction comprising a body frame and having slide rails suspended from the body frame through a front and rear suspension arm, and an endless track which runs under tension upon a drive and a plurality of driven wheels rotatably borne on the slide rails. The rear suspension has front and rear suspension arms which connect the body frame and the slide rails in parallelogram linkage fashion. Compression coil springs and shock absorbers are operatively mounted between the slide rails and the front and rear suspension arms. An inclined slide block and slot coupling interconnects the rear suspension arm and each slide rail to automatically react both front and rear suspension arms upon initial encounter of the slide rails with a snow bump. This coupling also urges the chassis of the snowmobile into an upwardly pitched condition upon acceleration with the forward ends of the slide rails digging into the ground surface for enhanced traction.
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Ellis Christopher P.
Rice Kenneth R.
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