a portable knockdown boat hoist for lifting boat from boat trailer or other resting location. Comprising of two A-frame structures positioned over the bow and stern of the boat. Each A-frame unit consists of two splayed legs on each side of the boat connected by a crossmember running over the top of the boat. At each side of the boat attached to one leg is a winch with a block and pulley connected by cable to the winch. Cranking up on the winch pulls up a lifting strap running underneath the hull of the boat, which in turn lifts the boat. The A-frame structures are comprised of tube sections that insert one end into the next section. A-frame units can be disassembled for transporting to boat location for lifting.
Portable Knockdown Boat Hoist
2017-02-23
Patent
Elektronische Ressource
Englisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |