PRINTING PLATE HOLDING APPARATUS

摘要

A printing plate holding apparatus is provided which during a high speed printing operation reduces vibrations and noises caused in a groove for having a grip leading end and a grip trailing end of a printing plate inserted therein, which can fasten the printing plate with greater certainty, and which is suitable for the printing plate to be held securely on such as a sleeve cylinder whose weight reduction is demanded. It is a printing plate holding apparatus in which a printing plate 5 wound on a plate cylinder 2 is to be held securely thereon in a rotary press, the apparatus having a plate insertion groove 4 formed on an outer peripheral surface of the plate cylinder 2 and extending axially of the plate cylinder 2 for receiving a grip leading end 5a and a grip trailing end 5b of the printing plate 2, and comprising a printing plate retainer plate 6 and a tap bolt 7 for bringing both widthwise lateral end portions of the grip leading and trailing ends 5a and 5b of the printing plate into overlapping each other in the plate insertion groove 2 and for pressing and fastening them against a constraint surface 4b with which the grip trailing end 5b is in contact in the plate insertion groove 4.