Winches with pull cord drive
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United States of America Patent
Stats
-
Apr 15, 1986
Grant Date -
N/A
app pub date -
May 14, 1984
filing date -
Sep 30, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A marine winch has a winch drum which is totally closed at the top, mounted on a base housing in bearings so as to rotate relative thereto on a vertical axis. The winch drum is driven in a given direction by pulling on a cord which is wound around a self-recoiling pulley in the base housing to thereby rotate the pulley and associated ratchet or clutch means and pinion gear which drives a gear ring on the winch drum. A sprag clutch is operatively connected between the winch and the base housing to prevent rotation of the winch drum in a direction opposite the given direction and to transmit load torque applied to the winch drum to a gear plate to automatically change gear ratios. An infinitely variable hydraulic drive means is also described.
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