| 摘要 |
<p>A roller structure in a printing press includes a dampening form roller (25), gear (24a;44;144;152-156), belt (160), belt roller (158;159), clutch member (45,51;71), nut (47), movable element (70), and snap rings (71). The dampening form roller is supported rotatably and adapted to come into contact with a plate cylinder (2) and oscillating roller (24), having different peripheral surface speeds, at their outer surfaces. The gear, belt and belt roller transmit rotation of one of the plate cylinder and oscillating roller to the dampening form roller. The clutch member, nut, movable element and snap rings connect/disconnect the gear, belt and belt roller. When the gear, belt and belt roller are disconnected by the clutch member, nut, movable element and snap rings, the dampening form roller is rotatably driven by the other one of the plate cylinder and oscillating roller.</p> |
