Self-jamming descender for a rope with two jamming positions
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United States of America Patent
Stats
-
Oct 8, 1991
Grant Date -
N/A
app pub date -
Oct 31, 1990
filing date -
Mar 16, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-jamming descender for a rope comprises a first base flange equipped with an articulation spindle and a first fixed pulley, a mobile support plate with an operating lever pivotally mounted on the spindle, and a second pulley securedly united to the support plate and eccentric with respect to the spindle. The second pulley comprises a boss cooperating with a first braking surface of the first pulley when the lever is in a first jamming position. The pivoting support plate is provide with a jamming cleat, separated from the second pulley by a space through which the rope passes, and cooperating with a second braking surface when the handle is moved to a second jamming position. Unjamming of the descender takes place in an intermediate position of the operating lever.
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Cited Art Landscape
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