Blade holder having displacement-dependent spring force compensation
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United States of America Patent
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-
Oct 23, 2007
Grant Date -
Oct 28, 2004
app pub date -
Dec 18, 2003
filing date -
Dec 19, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A blade holder for cutting machines includes a blade head held on a raising and lowering device and an adjustment mechanism for a circular blade that is held on the blade head. The adjustment mechanism, for the movement of the circular blade between a cutting position and a ready position, is provided with an adjustment piston rod having an adjustment piston that is guided in a chamber of the blade head housing and can be moved by compressed air. The adjustment piston rod is biased by a compression spring into the ready position of the circular blade. The piston surface of the adjustment piston has a cross-sectional area that is configured such that as the path of the adjustment piston in the direction of adjustment increases, the piston surface that is acted upon by compressed air increases.
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