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US 6,550,383 B2Granted
Independent cylinder drive system for a multicolor offset lithographic press
AssigneeKabushiki Kaisha Tokyo Kikai Seisakusho
InventorMitsuo Kitai
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AssigneeKabushiki Kaisha Tokyo Kikai Seisakusho
InventorMitsuo Kitai
Estimating the term…
A series of offset perfecting press units are stacked for printing multicolor images on both surfaces of a web traveling successively therethrough. Each printing unit has two plate cylinders each split into a pair of halves, and two blanket cylinders in rolling contact with the respective plate cylinders and, via the web, with each other. The plate cylinder halves are capable of independent displacement both axially and circumferentially of the plate cylinder for image registration both transversely and longitudinally of the web. The four plate cylinder halves are driven independently from as many drive motors via respective drive linkages. Two of the four drive motors are further coupled via two associated ones of the drive linkages to the blanket cylinders. Motor power is first transmitted to the blanket cylinders, which are less in diameter than the plate cylinders, then to the two plate cylinder halves.
A web-fed offset lithographic press for printing multicolor images on a continuous web of paper or like material traveling through a series of printing units, at least one of the printing units comprising:
A web-fed offset lithographic press for printing multicolor images on a continuous web of paper or like material traveling through a series of printing units, at least one of the printing units comprising:
Dependencies are inferred from the claim text.