Printing plate unit, plate cylinder apparatus for printer, and printing plate unit automatic mounting apparatus
AssigneeI. Mer Co., Ltd.
InventorMasayuki IZUME
Life of this patent
Estimating the term…
Abstract
A printing plate unit automatic mounting apparatus 81 includes: a pressing member 96 inserted from a pressing member insertion opening 33 and pressing an inner slider 36 against a biasing force applied by a printing plate coupling member biasing apparatus 35, a retaining means 94 configured to retain and release the printing plate unit 1 by retaining and releasing a projecting portion 11a provided on the printing plate unit 1 and configured to serve as a gripping portion; and a drive apparatus 92 configured to move the retaining means 94 in an axial direction of a plate drive shaft.
Claims26
A printing plate unit to be demountably mounted on a printing plate mounting portion of a plate cylinder comprising:
- a printing plate having a plate portion provided on part of a surface of a sheet formed of a resilient material and engaging projecting ridges projecting on a rear surface side or a front surface side at both end portions in a longitudinal direction and extending in a width direction;
- and a printing plate coupling member coupling both end portions of the printing plate formed cylindrically in the longitudinal direction by engaging the both engaging projecting ridges of the printing plate formed cylindrically, wherein the printing plate coupling member is provided with a projecting portion projecting from the printing plate formed cylindrically in an axial direction and configured to serve as a gripping portion when being mounted and demounted with respect to the printing plate mounting portion.
Dependencies are inferred from the claim text.