Variable radius crank winch
AssigneeBarient Company
InventorsChristopher E. Boome, William C. Ottemann
Life of this patent
Estimating the term…
Abstract
A pedestal winch with variable radius crank arms. The winch is intended for use on a sail boat or the like. The crank arms each include two telescoping sections together with a locking apparatus for locking the sections together in differing positions so as to achieve differing radii. A thumb-actuated operating member is positioned adjacent each crank handle for controlling the locking apparatus. Accordingly, an operator need not remove his/her hands from the crank handles in order to switch the winch between a short radius position for high speed winching and a long radius position for high power winching.
Claims4
A pedestal winch comprising:
- a winch drum adapted to receive a sheet to be pulled;
- a crankshaft;
- a pedestal supporting said crankshaft;
- drive means for rotating said winch drum in response to rotation of said crankshaft;
- a pair of handles to be gripped by an operator;
- a crank arm connecting each crank handle to said crank shaft in a position generally parallel with said crankshaft;
- each of each said crank arms including first and second elongate arm sections movably connected together for extension and retraction;
- locking means for locking said arm sections in at least a short-arm position and in a long-arm position;
- and
- operating means for each crank arm including a control ring positioned coaxially with each of said crank handles and movable axially of the associated crank handle in response to manual actuation by an operator manually gripping said associated crank handle for releasing said locking means for permitting the associated crank arm to be switched between said short-arm and said long-arm position.
Dependencies are inferred from the claim text.