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    • 4. 发明专利
    • METHOD FOR FITTING PRINTING PLATE TO PLATE CYLINDER AND FITTING DEVICE
    • JP2000103036A
    • 2000-04-11
    • JP26620799
    • 1999-09-20
    • ROLAND MAN DRUCKMASCH
    • DAUER HORSTDILLING PEERPETERSEN GODBERSCHNEIDER JOSEF
    • B41F27/10B41F27/12B41F27/06
    • PROBLEM TO BE SOLVED: To enable a lithographic printing plate to be fixed easily with a simple structure by forming the lithographic printing plate in such a manner that it is shaped like a sleeve and a leg part is provided on the forward and backward edge parts, and fitting the leg parts into slots on the plate cylinder, when a printing plate for offset printing is mounted on the cantilever plate cylinder of a rotary press. SOLUTION: A printing plate 1 has leg parts 2, 3 formed by bending the forward and backward edge parts of the printing plate 1 at right angles. These leg parts 2, 3 are joined to each other by pressure-welding the leg parts 2, 3 through electric resistance in such a state that the leg parts 2, 3 are brought into contact with each other. In this pressure-welding process, although it is desirable to have a continuous weld part 4 formed by electric seam welding, it is preferable that both leg parts 2, 3 are joined together using the counter-faces of the leg parts 2, 3 across their entire length, when it comes to the printing plate 1 with the leg parts 2, 3 formed by obliquely bending the forward and backward edge parts. The printing plate 1 formed as described is fixed by fitting the leg parts 2, 3 of the forward and backward edges into a cylinder groove which is extensively present in the axial direction of a plate cylinder.