| 摘要 |
PURPOSE: To enable a strip material to be printed to follow the deflection of an impression cylinder correctly even when the strip material is wide by structurally transmitting a pressure to be directed outwardly in the radial direction, to the peripheral walls of rollers by an air-operated bellows in relation to roller bearings. CONSTITUTION: A pressing force is structurally generated by operating bellows 9, 29 which are arranged in bushes 6, 26 and form an air chamber into which a pressure medium 10 is introduced. Further, the pressure medium 10 is supplied into the air chamber through a connection conduit 19 passing through a receiving shaft 2 in the longitudinal direction and the pressing force to be transmitted to the peripheral walls 3 of rollers through roller bearings 7, 8, 27, 28 is changed by the pressure variations of the pressure medium 10. In addition, the receiving shaft 2 is deformed into the one direction during pressurizing process and the peripheral faces of the peripheral walls 3 of the rollers are deformed into the opposite direction to the receiving shaft 2 to form a bow-shape generant. Consequently, it is possible to correctly follow the deformation of an impression cylinder. |
