Motor vehicles – Special driving device – Portable track
Patent
1974-01-16
1976-02-10
Goodman, Philip
Motor vehicles
Special driving device
Portable track
305 35EB, B62D 1100
Patent
active
039372898
ABSTRACT:
A vehicle adapted to traverse snow-covered areas, commonly called a "snow cat," is disclosed. The snow cat of the present invention includes fore and aft substantially rigid body frame members. An articulating joint joins the fore and aft body frame members and permits relative rolling motion and yawing motion respectively between the two rigid members. Yawing motion at the joint is controlled manually to steer the vehicle. Two track assemblies are mounted on each side of both the fore and aft body frame members. Each track assembly includes a relatively wide endless track having a moving flat base portion which rides over snow. A track assembly having a plurality of rows of rollers is disclosed for maintaining the base portion in its substantially flat configuration. The drive sprocket for each track assembly is located slightly above and intermediate the rollers so that the track is maintained in a triangular configuration. Fore and aft torsion bars provide stabilizatiton between the two forward track assemblies and the two aft track assemblies respectively.
REFERENCES:
patent: 3035654 (1962-05-01), Nuttall
patent: 3443654 (1969-05-01), Schoonover
patent: 3473619 (1969-10-01), Dion
patent: 3688858 (1972-09-01), Jespersen
patent: 3715146 (1973-02-01), Robertson
patent: 3789942 (1974-02-01), Kowalik
Carroll John A.
Goodman Philip
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