| 摘要 |
<p>A plate lockup apparatus for a printing press includes a leading-side lockup device (5), a trailing-side lockup device (30), and a cam mechanism (38). The trailing-side lockup device (30) is located in the gap (2) of the plate cylinder (1) and grips a trailing edge of the plate, the trailing-side lockup device (30) having a lockup table (35) and a gripper plate (36), each having a plate gripper surface (35a, 36a) extending in a radial direction of the plate cylinder (1). The lockup table (35) and the gripper plate (36) are connected to each other at non-gripping ends thereof through a shaft (33). The cam mechanism has a cam (38), a cam surface of which is in contact with the lockup table (35). The cam mechanism is operated such that at a start of pivotal movement of the cam (38), the plate gripper surfaces (35a, 36a) of the lockup table (35) and the gripper plate (36) ace closed to grip the plate, and at an end of pivotal movement of the cam (38), the lockup table (35) and the gripper plate (36) are moved together in a circumferential direction of the plate cylinder (1) to tighten the gripped plate.</p> |
