| 摘要 |
PURPOSE:To prevent the occurrence of ureven printing resulting from the adhesion of a large quantity of ink to a part of a printing surface, by constituting a device such that an ink roller is positioned away from a rotary disc at a time when the rotary disc is brought to a stop in a given direction. CONSTITUTION:A heart-shaped cam 12 is securely attached to the shaft of a rotary disc 4, and a cam roller 16, which can displace only in the given direction of the diameter of the rotary disc 4, is brought into elastic contact with the cam 12 through the force of a spring. An ink roller 5 is pivotably secured to the inside of a caseform cover 6, the cover 6 is pivotably secured to an arm 1 through the medium of a pivot 7, and this enables the roller 5 to displace so that it can freely contact and be separated from the rotary disc 4. |
