Velocity-changing apparatus for web
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United States of America Patent
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Issued Date -
Jul 19, 2007
app pub date -
Mar 1, 2005
filing date -
Mar 5, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A velocity-changing apparatus of the present invention includes: a drum 3 for transporting the continuous web W1 at a transport velocity which is generally equal to a circumferential velocity V(.theta.) of the drum 3 while changing the circumferential velocity V(.theta.) periodically at least once per one rotation of the drum 3; a movable member 2 disposed upstream of the drum 3 for feeding the continuous web W1 to the drum 3,; and a cutter 4 for cutting, on the drum 3, the continuous web W1 being transported at the transport velocity which is generally equal to the circumferential velocity V(.theta.) of the drum 3. The movable member 2 moves according to the change of the circumferential velocity V(.theta.) of the drum 3 so that a feed velocity at which the continuous web W1 is fed to the drum 3 is generally equal to the transport velocity of the continuous web W1 being transported by the drum 3.
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