Patent ID: 6554254
Filing Date: 2003-04-29
Classification: A62B,B66C

Abstract:
A hoist for mounting on a support surface for lifting a load in a direction generally at right angles to the support surface, the hoist comprising:a base member for mounting on the support surface; a jib portion; the jib portion having a bottom coupling at a bottom end for attachment to an attachment portion of the base member such that the jib portion is supported thereby; and a winch mounting for receiving thereon a winch for paying out and drawing in a cable; the jib portion having a cable guide member at an upper end over which the cable can pass to be guided from the winch over the cable guide member downwardly from the upper end of the jib portion for attachment to a load to be lifted; the jib portion being shaped such that the upper end is located upwardly from and forwardly of the bottom coupling such that, with the bottom coupling located by the base member on the support structure behind a load to be lifted, the upper end is located above the load to be lifted; the jib portion being formed by a tubular body of constant cross-section extending substantially from the bottom end to the upper end which tubular body is along substantially its full length from the bottom end at the bottom coupling to the upper end at the cable guide member smoothly curved with a constant radius of curvature.