B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
B66C 23/44 (2006.01)
Patent
CA 2420982
A portable lift mechanism is disclosed for removably mounting on a vehicle having a frame and a hitch receiver, the lift mechanism comprising: a second, frame-mounted receiver mounted on the frame at a location spaced from the hitch receiver; a mounting assembly comprising a first mounting member for removably mounting in the hitch receiver, a second mounting member for removably mounting in the second, frame-mounted receiver, and a crosspiece connecting the first and second mounting members; a mast base mounted on the mounting assembly; an upright mast having an upright axis, rotatably mounted on the mast base for rotation about the upright axis of the upright mast; a boom arm mounted on the upright mast for rotation and rotatable about a lateral pivot axis transverse to the upright axis of the upright mast; a load suspension means connected to the boom arm at a position spaced from the pivot axis; and boom arm control means for controlling the movement of the boom arm about the lateral pivot axis. The present invention addresses the need for a portable lift mechanism that is easily removable from a standard truck, while being of sufficient strength and structural integrity to eliminate the need for support systems such as guy wires, and in preferred embodiments it can be used in conjunction with the truck's standard towing capabilities.
Elliott Wilfred J.
Macpherson Leslie & Tyerman Llp
LandOfFree
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