| 摘要 |
PROBLEM TO BE SOLVED: To improve quality of printing by differentiating a circumferential speed of an ink swing roller from that of an inking roller. SOLUTION: A swing roller 5 is axially reciprocatingly and rotatably supported to right and left frames through bearings, reciprocatingly driven, and rotatably driven from a prime mover side through a gear 8 axially mounted at one end side. An inking roller 2 is rotatably supported through a bearing fixed to an oscillatory holder, and a gear 10 is engaged with the gear 8. An outer diameter r1 of the roller 2 is formed larger than a diameter r2 of a pitch circle of the gear 10, an outer diameter R1 of the roller 5 is formed smaller than a diameter R2 of the pitch circle of the gear 8 so that the circumferential speed of the roller 2 is slightly accelerated faster than that of the roller 5. |
