Apparatus for introducing sheet into sheet-fed printing press
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United States of America Patent
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N/A
Issued Date -
Dec 4, 2008
app pub date -
May 28, 2008
filing date -
May 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Apparatus for introducing sheet is disclosed which mainly aims at feeding sheet smoothly into sheet-fed printing press even in case of thick sheet with higher resilient force. The present invention premises sheet-fed printing press with a plurality of printing units whose sheet transfer path is composed of double-sized transfer and impression cylinders 20, 18. Sheet introducing apparatus comprises: first transfer cylinder 30 of approximately the same construction with said double-sized transfer cylinder 20 and is disposed between sheet feeder 26 and first printing unit 10a, the center of rotation 34 being above feeding path for sheet 22, and second transfer cylinder 32 of also approximately the same construction with said double-sized impression cylinder 18 and is in contact with the lower portion of said first transfer cylinder 30 and said transfer cylinder 20 of said first printing unit 10a.
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