Hoisting mechanism
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United States of America Patent
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Sep 16, 2003
Grant Date -
Feb 13, 2003
app pub date -
Jul 10, 2002
filing date -
Jul 13, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a hoisting mechanism comprising a rotatable reel and hoisting cables to be wound onto the reel, the hoisting cables running substantially parallel to one another, and a guide plate having feed-through apertures for the hoisting cables, with at most one hoisting cable running through each feed-through aperture. For each hoisting cable a guide member is provided between the rotatable reel and the guide plate, which guide member is embodied as a spiral spring whose coils abut to one another and whose inside diameter is dimensioned such that the hoisting cable fed through the spiral spring is able to move in the feed direction.
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