Device for setting and automatic adjustment of the tractive force of a cable of an overhead winch for a ski slope preparation and maintenance machine
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United States of America Patent
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-
Jul 1, 2003
Grant Date -
Aug 30, 2001
app pub date -
Jan 17, 2001
filing date -
Jan 21, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
Device for setting and automatic adjustment of the tractive forces of the cable of an overhead winch for a ski slope preparation and maintenance machine, comprises an adjustment control unit connected to a controllable winch drive; and a processing device connected to sensors and to the adjustment control unit. The sensors are pressure sensors which detect pressure applied to a selection valve with maximum value, the selection valve being connected between delivery ducts of hydraulic drives on the right-and left-hand sides of the ski slope preparation and maintenance machine in a first travel direction or a travel direction opposite thereto. The processing device includes an algorithm which calculates a nominal value based on the pressure taken by the pressure sensors and which controls the winch operation through the adjustment control unit.
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