Trailer including a multiple fold powered ramp tail

Details Trailer including a multiple fold powered ramp tail Trailer including a multiple fold powered ramp tail

1981-03-30

1983-02-08

Schacher, Richard A.

Material or article handling

Self-loading or unloading vehicles

Conveyor

296 61, B60P 100

Patent

active

043727271

ABSTRACT:
A multiple fold ramp tail for a trailer is described comprising a wheeled frame having rearward and forward ends with the forward end of the frame being suitable for connection to a prime mover such as a truck or the like. A multiple fold ramp tail is pivotally connected to the rearward end of the frame and comprises a main ramp portion, first stage ramp portion and a second stage ramp portion. The forward end of the main ramp portion is pivotally connected to the rearward end of the frame and the forward end of the first stage ramp portion is pivotally connected to the rearward end of the main ramp portion. The second stage ramp portion is pivotally connected at its forward end to the rearward end of the first stage ramp portion. The first and second stage ramp portions are normally in a stored position wherein they are folded upon themselves beneath the lower rearward end of the main ramp portion. The first and second stage ramp portions may be unfolded to an operative position so that they form an extension of the main ramp portion with the main ramp portion being adapted to be moved to an inclined position so that the rearward end of the second stage ramp portion may be placed in engagement with the ground surface.

REFERENCES:
patent: 2776063 (1957-01-01), Larson
patent: 3642156 (1972-02-01), Stenson
patent: 3799479 (1974-03-01), Roeder
patent: 4068770 (1978-01-01), Boehringer

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