Patent ID: 6863490

Claim:
For use with a boat hoist including a pair of laterally spaced front posts and a pair of laterally spaced rear posts forming a rectangular structure, a front beam extended between the front posts and a pair of laterally spaced side beams extended, respectively, between each set of front and rear posts, the posts mounted on a surface for disposing the beams in a normally horizontal plane, a trailer for transporting the boat hoist comprising: means forming a frame having a pair of side frame members converged together at their front ends, and diverged at laterally spaced side portions, wherein said side portions extend rearwardly of said front ends in parallel relation; a wheel and axle unit including a pair of laterally spaced ground surface engaging wheels mounted on said frame; a first pivot unit pivotally mounted to one of said side portions and engaged with said wheel axle unit on one side of said frame; a second pivot unit pivotally mounted to the other of said side portions and engaged with said wheel and axle unit on the other side of said frame; a first winch unit mounted on said frame and connected to said wheel and axle unit, said first winch unit operable to move said wheel and axle unit from a frame lowered position to a frame raised position; extension support means mounted on said frame for engaging the hoist side beams; and a second winch unit mounted on said frame for engaging the hoist front beam for vertically moving the hoist relative to said trailer frame.