Highly versatile dock trailer

An improved, combined trailer and dock unit, said unit comprising an elongated rectangular, open chassis frame, flotation members fixedly mounted within said frame opening and protected by said chassis frame, wood decking fixed to the upper surface of the chassis frame and overlying said flotation members, said chassis frame including horizontal bottom beams on each side thereof, a drop axle wheel assembly for detachably mounting to said frame, each wheel assembly comprising a pair of elongated slider bars, spring members shackled to said slider bars and depending therefrom, wheels mounted to the spring members and means for detachably mounting said slider bars to the bottom of said chassis frame side beams at longitudinally adjustable positions, demountable bunks carried by said chassis frame and projecting above said deck for guiding a boat longitudinally therebetween during loading of the boat onto said unit, at least one roller means demountably carried by said chassis frame adjacent the rear end of the unit and projecting above the deck for contact with the boat keel during movement of the boat longitudinally into overlying position with respect to the unit deck, a tow bar means, means for mounting said tow bar means to the front end of said chassis frame at the center thereof, winch means mounted to said towbar means for winching the boat over said roller means and onto said bunks, vertically adjustable anchor bars mounted to at least the rear corners of said chassis frame for vertical movement relative to said chassis frame for jacketing the rear of said trailer-dock unit above the water level to permit the unit to act as a fixed dock within the water, subsequent to unloading of a boat therefrom, means for removably mounting a winch including a winch line adjacent to each of said vertically adjustable anchor bars, and pulleys fixed to said chassis frame adjacent the vertically adjustable anchor bars;

• whereby, by attachment of the end of a winch line to the upper end of the vertical anchor bar and by leading said line through said pulley, operating said winch forcibly drives the vertically adjustable anchor bars vertically downward into the sea bottom to lift the rear end of said dock-trailer unit.