Controllable tailgate for dump truck

Details Controllable tailgate for dump truck Controllable tailgate for dump truck

1986-07-07

1988-02-09

Paperner, Leslie J.

Land vehicles: dumping

Tilting

With cover or endgate control

239657, 296 51, 296184, 298 23M, B60P 126

Patent

active

047238178

ABSTRACT:
A controllable tailgate compatible with conventional rearward tilting dump trucks is attached at its uppermost corners to the upper end of two rear corner truck bed posts and pivots from a closed position to an open position enabling the discharge of material through an opening between the bottom of the tailgate and outer edge of the truck bed. The dump truck can be manufactured to accommodate the controllable tailgate or the truck bed can be modified by adding both a truck bed floor and two truck bed side-extension panels to match the truck bed to the tailgate. One or more movable gates are connected to the lower exterior of the tailgate across its width and are controllable from within the cab of the dump truck. The gates are moved to close the opening between the tailgate and truck bed when the dump truck is tilted rearward and the tailgate is in an open, unloading configuration. The gates serve to control the discharge of material from the dump truck. Linearly controlled cylinders driven by a compressed air source may be used to control the gates.

REFERENCES:
patent: 2248374 (1941-07-01), Mitchell
patent: 2344755 (1944-03-01), Venard
patent: 2563736 (1951-08-01), Newell
patent: 2645522 (1953-07-01), Kersey
patent: 2762628 (1956-09-01), Terry
patent: 2856233 (1958-10-01), Boyce et al.
patent: 2908529 (1959-10-01), Davidson
patent: 3814479 (1974-06-01), Vornberger

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