Land vehicles – Wheeled – Running gear
Patent
1982-02-08
1984-07-17
Bertsch, Richard A.
Land vehicles
Wheeled
Running gear
15 83, A47L 1124, B62D 102
Patent
active
044601867
ABSTRACT:
A sweeper, which has a pair of front wheels which are mounted on a frame on opposite sides of a dirt hopper, a steerable guide wheel unit mounted on the frame in a tricycle arrangement with respect to the front wheels characterized by the guide wheel unit having a suspension having first and second members arranged with one member being telescopically received and the other member with an arrangement for transmitting torque between the members and the unit has an arrangement positioned between the two members for resiliently suspending the two members. The arrangement for resiliently suspending can comprise a single coiled spring telescopically receiving an outside member or a plurality of spring units that are provided either by themselves or with shock absorber units. The arrangement for transmitting torque can include a splined shaft and an internally splined bore or a plurality of torque transmitting lever arms.
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Hildebrand Donald L.
Martinez Mario J.
Bertsch Richard A.
Elgin Sweeper Company
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