Web processing system
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United States of America Patent
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-
Apr 5, 2005
Issued Date -
N/A
app pub date -
Sep 3, 2002
filing date -
Oct 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A winding device has a drive shaft having a flange, and a holder rotatably mounted on the drive shaft in covering relation to the flange, for winding the web therearound. The holder has a first torque adjustment plate rotatably mounted on the drive shaft and having a surface disposed in facing relation to a surface of the flange, the first torque adjustment plate supporting a plurality of magnets on the surface thereof, and a second torque adjustment plate rotatably mounted on the drive shaft and having a surface disposed in facing relation to an opposite surface of the flange, the second torque adjustment plate supporting a plurality of magnets on the surface thereof. The winding device is capable of winding relatively wide webs having a large thickness ranging from 100 to 150 .mu.m, e.g., photographic photosensitive webs (films), with a low tension fluctuation ratio of .+-.5% or less, while producing large tension easily and stably. The winding device is constructed for easy maintenance.
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Cited Art Landscape
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