Direct drive deck winch
AssigneeBarient Company
InventorWilliam C. Ottemann
Life of this patent
Estimating the term…
Abstract
A deck winch for sailing craft provides a direct drive from main shaft to drum and has a self-tailing capability. Pawls mounted in the drum near its upper end extend through an arcuate opening in a stationary extended base member to engage the shaft intermittently. The base member affords a fixed mount at its upper end for the line lifter of a self-tailing device and comprises a cylindrical sleeve whose axis is offset from the axis of the main winch shaft. As a crank turns the shaft, each pawl progressively projects through the base member opening to drivingly engage the shaft for a portion of a revolution and then is cammed outwardly out of engagement as the next pawl takes over. The invention provides a relatively simple winch having both direct drive and self-tailing capabilities.
Claims11
A direct drive winch for a rope, including in combination:
- a stationary base member having a lower portion adapted to be attached to a flat surface and an upper portion whose longitudinal axis is parallel to the axis of said base member and an arcuate opening in said upper portion;
- a rotary input shaft rotatably supported within said base member and having a series of circumferentially spaced-apart notches on its outer surface located at the same level as said arcuate opening;
- a rotary drum rotatably supported by said base member;
- bearing means between said rotary drum and said base member;
- a series of movable driving pawls supported within said drum and extendable through said opening in said base member as said drum rotates around it;
- and self tailing means fixed to the upper portion of said base member;
- whereby at least one said driving pawl is in contact with one notch of said shaft in the driving direction, each said pawl moving said drum for a portion of one revolution before it is disengaged from the notch and moved out of said opening.
Dependencies are inferred from the claim text.