| 摘要 |
The present invention aims at an improved apparatus for introducing sheet smoothly into printing unit 10 even in case thickness of sheet is changed without any adjustment. The present invention premises a sheet-fed printing press whose sheet transfer path for a plurality of printing units 10 in modular fashion is composed of double-sized transfer and impression cylinders. Apparatus, being disposed between sheet feeder 26 and the first printing unit 10a, for introducing sheet into said sheet-fed printing press comprising; First double-sized transfer cylinder 30 whose center of rotation is above the transfer path of sheet 24 and has, in succession with gripper means 40 on its circumference, curved guide member 42 which can be depressed in radial direction of the cylinder, Second transfer cylinder 32 of 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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