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US 6,920,824 B2Granted
Printing group of a rotary printing press
AssigneeKoenig & Bauer Aktiengesellschaft
InventorHelmut Holm
Life of this patent
Estimating the term…
Abstract
A printing group of a rotary printing press includes at least one forme cylinder and at least one transfer cylinder. The forme cylinder has at least two printing forme end receiving channels. These two channels are spaced circumferentially. At least one of these forme cylinder end receiving channels rolls off against a channel in the transfer cylinder. One of the forme cylinder end receiving channels is at least partially covered by a printing forme carried by the forme cylinder.
Claims26
A printing group of a rotary printing press comprising:
- at least a first pair of cylinders including at least one transfer cylinder and at least one cooperating forme cylinder, said at least one transfer cylinder and said at least one cooperating forme cylinder each having a cylinder length of at least six newspaper page widths and a cylinder circumference of two newspaper page heights;
- at least two transfer cylinder grooves in a circumferential surface of said at least one transfer cylinder, said at least two transfer cylinder grooves being arranged circumferentially one behind the other;
- at least three printing blankets on said at least one transfer cylinder and arranged adjacent each other in an axial direction of said at least one transfer cylinder, adjacent ones of said at least three printing blankets being circumferentially offset from each other, each of said at least three printing blankets extending over said circumferential surface of said at least one transfer cylinder except for an associated one of said at least two transfer cylinder grooves;
- and
- at least two forme cylinder grooves in a circumferential surface of said at least one forme cylinder cooperating with said at least one transfer cylinder, said at least two forme cylinder grooves being arranged circumferentially offset by 180° one behind the other, each of said forme cylinder grooves extending along said forme cylinder length.
2 more elements
A printing group of a rotary printing press comprising:
- a forme cylinder, said forme cylinder having a barrel with a forme cylinder circumference and a forme cylinder length, said forme cylinder length corresponding to at least six newspaper page widths, said forme cylinder circumference corresponding to two newspaper page heights;
- at least first and second axially extending grooves on said circumference of said forme cylinder, said first and second grooves being offset by 180° from each other in said forms cylinder circumferential direction, both of said forme cylinder grooves extending axially along said forme cylinder length of said forme cylinder barrel;
- at least one transfer cylinder arranged to work in cooperation with said forme cylinder, said at least one transfer cylinder having a transfer cylinder barrel with a transfer cylinder circumference and a transfer cylinder length, said transfer cylinder length corresponding to at least six newspaper page widths, said transfer cylinder circumference corresponding to two newspaper page heights;
- at least three blankets arranged adjacent each other in an axial direction of said at least one transfer cylinder and extending over said transfer cylinder length of said transfer cylinder barrel, each said blanket being multi-layered and including a support plate and a layer connected to said support plate;
- and
- a plurality of printing forme on said forme cylinder, each of said printing formes having ends, said ends being aligned along said forme cylinder barrel.
3 more elements
Dependencies are inferred from the claim text.