Land vehicles: dumping – Tilting – Operating mechanism
Patent
1975-11-10
1977-04-26
Spar, Robert J.
Land vehicles: dumping
Tilting
Operating mechanism
298 17R, 296 28D, B60P 116
Patent
active
040197816
ABSTRACT:
The specification discloses an attachment for converting a fixed bed truck with a passenger cab and hauling bed supported on a frame to a tilting bed truck. The attachment permits the rotation of the truck bed from a horizontal to a tilt position, such that the truck cab and bed, when the bed is in the horizontal position, assumes the same relative relationship as before the conversion. The attachment includes at least two hinges fixedly attached between the underside of the hauling bed and the rear of the truck frame to permit relative rotation between the hauling bed and frame. A first arm is pivotally connected at one of its ends to the forward portion of the frame and extends forwardly from the frame. A second arm is pivotally connected at one of its ends to the underside of the truck bed adjacent the forward end thereof and extends forwardly from the truck bed. A coupling member is pivotally connected at its opposite ends between the other ends of the first and second arms. A variable length actuator arm is interconnected between the first and second arms for exerting a lifting force between the frame and second arm when the actuator arm is contracted. When the actuator arm is extended, the second arm is moved substantially longitudinally against the truck bed to tilt the bed rearwardly. For retracting the truck bed, the actuator arm is contracted thereby causing the second arm to move downwardly with the first arm and coupling member.
REFERENCES:
patent: 3043629 (1942-07-01), Schlueter
patent: 3600038 (1971-08-01), Jones
patent: 3833261 (1974-09-01), Dingler
Abraham George F.
Spar Robert J.
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