Motor vehicles – Bodies – Movable cab or operator's station
Patent
1991-10-16
1993-05-11
Tyson, Karin L.
Motor vehicles
Bodies
Movable cab or operator's station
267 6411, B62D 33067
Patent
active
052093166
ABSTRACT:
A suspension unit for supporting a cab on the chassis of a truck has two U-shaped yokes, one with arms extending down and the other with arms extending up. The arms of one yoke are nested within the arms of the other in a sliding fit and a bearing in a vertical slot connects each pair of adjacent arms. An air spring and one or two shock absorbers can be mounted between the yokes. A guideway having a bottoming rib or a stop element with a cushioning pad is formed on one of the arms of each adjacent pair and the other arm of the corresponding pair is received within the guideway and abuts the bottoming rib or stop element in a fully compressed position to prevent excessive loads on the air spring, shock absorbers and bearings. The unit is mounted on a truck between the cab and chassis with one pair of adjacent arms fore and the other pair aft, to provide relatively free vertical movement, pivoting about a fore and aft axis, and fore and aft translational rigidity of the truck cab relative to the chassis.
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Applied Power Inc.
Tyson Karin L.
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