Transversely expandable trailer

Details Transversely expandable trailer Transversely expandable trailer

1990-07-27

1992-06-02

Werner, Frank E.

Material or article handling

Self-loading or unloading vehicles

Conveyor

280656, 280638, 414495, B60P 306

Patent

active

051182459

ABSTRACT:
A trailer suitable for hauling farm implements along highways is expandable from a contracted, empty position to an expanded loaded position. In expanded position, the rear support wheels are outside normal highway width limits. The trailer frame has a forward section, supported at its rear with centrally located ground wheels, and a pair of rear sections each supported by an outside wheel. Each rear section has a pair of transverse telescopic beams. One set of vertical hydraulic or pneumatic cylinders lifts the forward central wheels and the rear sections off the ground. A set of transverse cylinders moves the outside wheels to expanded position. Each outer rear beam section has a loading ramp hinged thereto about a transverse axle and a wheel support hinged thereto.

REFERENCES:
patent: 3330574 (1967-07-01), Kulyk
patent: 3406980 (1968-10-01), Murray
patent: 3556545 (1971-01-01), Van Raden
patent: 3698734 (1972-10-01), Drake
patent: 3894598 (1975-07-01), Yeou
patent: 4119224 (1978-10-01), Moody
patent: 4221398 (1980-09-01), Pautrat
patent: 4336889 (1982-06-01), McGrew
patent: 4358133 (1982-11-01), Stucky

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