Ratchet pulley for tightening cords or ropes
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United States of America Patent
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Nov 29, 1994
Issued Date -
N/A
app pub date -
Jan 4, 1993
filing date -
Aug 9, 1991
priority date (Note) -
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Abstract
A ratchet-type tensioning mechanism for a rope or cord has a rotatable sheave with faces having radially extending serrations. A releasable ratchet mechanism permits rotation of the sheave in one direction but not the other. A plurality of serrations circumscribes the sheave, which is closely fitted within a curved surface within a housing within which the sheave is rotatably mounted. The curved surface forces the rope into the sheave and maintains it in non-slippiong contact therewith. An opening in the side of the housing can be provided to permit hand rotation of the sheave. The device optionally may include a ratcheting lever arm which engages the wheel and affords leveraged tensioning the rope.
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