Opposed cylinder cable hoist mechanism

Claim 1

In a vehicle including a chassis supporting an elongated load support frame for pivotal movement on a horizontal axis, the frame including parallel spaced longitudinally extending frame members rigidly connected by longitudinally spaced cross frame members and having a forward portion and a rearward portion, and power actuated means for tilting the frame between a generally horizontal position and an inclined position with the forward portion being elevated and the rearward portion being lowered to provide for moving a refuse container or other load onto the frame, an improved and simplified hoist mechanism for pulling the load onto the frame while the frame is in its inclined position, comprising a first fluid actuated cylinder extending longitudinally within the forward portion of the frame to one of the cross frame members and supporting an actuating piston rod extendable longitudinally into the rearward portion of the frame, a second fluid actuated cylinder extending longitudinally within the rearward portion of the frame to one of the cross frame members and supporting an actuating piston rod extendable longitudinally within the forward portion of the frame in laterally spaced relation to the first fluid actuated cylinder, first and second sheaves, there being a sheave mounted on each of the piston rods and movable therewith, an elongated cable having one end portion secured to the frame and extending forwardly to the sheave on the piston rod of the second fluid cylinder, the cable than extending rearwardly between the fluid actuated cylinders to the sheave on the piston rod of the first fluid actuated cylinder, a third sheave supported by the forward end portion of the frame, the cable extending forwardly from the sheave on the piston rod of the first fluid actuated cylinder to the third sheave, and the cable extending rearwardly from the third sheave and having a rearward end portion with means for connecting to the load.