Patent ID: 6604464
Filing Date: 2003-08-12
Classification: B41F

Abstract:
An inking device for supplying ink to be fed to a printing plate on a cylinder via a group of rollers arranged sequentially in contact with each other in an ink feeding process, the device comprising:an ink rail being unrotatably disposed upstream in the ink feeding process and having an ink feeding surface; a first roller whose outer periphery partly faces the ink feeding surface of the ink rail, said outer periphery being spaced from the ink feeding surface by a gap, said outer periphery receives ink directly out of the ink feeding surface, said ink rail filling said gap between said ink feeding surface and said outer periphery of said first roller with the ink; a second roller that is disposed downstream of the first roller in the ink feeding process and in contact with the outer periphery of the first roller on the downstream side in the rotating direction from the position at which the first roller faces the ink feeding surface of the ink rail, said first roller moving substantially all the ink from said inking rail on said outer periphery of said first roller to said contact with said second roller; a third roller that is in contact with the first roller on the downstream side in the rotating direction from the position at which the second roller comes in contact with the outer periphery of the first roller on the downstream side in the rotating direction, and a fourth roller that is in contact with the outer peripheries of the second and third rollers and blocks the front side in the rotating direction of the first and second rollers at the position where the first and second rollers are in contact with each other; said first, second, third and fourth rollers are arranged to define a space therebetween which is enclosed by said first, second, third, and fourth rollers, wherein ink droplets and ink particles produced at a contact area of said first and second rollers by rotation thereof are contained in said space.