Plate exchange apparatus for printing press

A plate exchange apparatus for a printing press comprising:

• a plate press member for pressing a plate against a circumferential surface of a plate cylinder when said plate is wound around said plate cylinder, for guiding a leading end of said plate into plate gripper surfaces of a leading-side plate lockup device when said leading end of said plate opposes said plate gripper surfaces of said leading-side plate lockup device, and for inserting a trailing end of said plate into plate gripper surfaces of a trailing-side plate lockup device under pressure when said trailing end of said plate wound around said circumferential surface of said plate cylinder opposes said plate gripper surfaces of said trailing-side plate lockup device;
• operating members coupled to said plate press member for pressing said plate press member against said circumferential surface of said plate cylinder until said trailing end of said plate is inserted under pressure after said leading end of said plate is gripped;
• regulating members for regulating movement of said plate press member in a radial direction of said plate cylinder during plate gripping:
• and
• said regulating members including a first element arranged on said plate press member and a second element arranged on said plate cylinder, said first element and said second element opposing each other at the time of plate gripping.