Printing machine with mechanism for moving ink roller to contact and leave the printing plate rotary drum

Application Number: 00122610
Application Date: 2000.08.03
Publication Number: 1282663
Publication Date: 2001.02.07
Priority Information: 1999/8/3 JP 220405/99
International: B41F7/10;B41F13/48
Applicant(s) Name: Ryobi Ltd.
Inventor(s) Name: Aoyama Hideo;Tadashi Ryo
Patent Agency Code: 72001
Patent Agent: zeng xiangling
Abstract An offset printer capable of contacting a plurality of ink rollers of a predetermined ink supply unit with a predetermined plate segment on a plate cylinder, and capable of out of contacting the ink rollers from a remaining plate segment on the plate cylinder. Roller support arms each supporting each ink roller are pivotally movably supported on a frame, and each support arm is moved by each, cam members pivotally movably supported on the frame. Each cam member is in contact with a center cam provided coaxially with and rotatable together with the plate cylinder, so that the ink rollers are successively moved. An interlocking mechanism including a lever is further provided. The lever moves concurrently the cam members to concurrently move the ink rollers.