Cylinder apparatus for rotary printing press

A cylinder apparatus for a rotary printing press, comprising:

• a pair of first eccentric bearings for rotatatively supporting two ends of at least one first cylinder, said first eccentric bearings having abutting portions;
• a second eccentric bearing for pivotally supporting one of said first eccentric bearings;
• a pair of support members arranged to oppose each other through a predetermined distance and adapted to pivotally support said second eccentric bearing and the other one of said first eccentric bearings;
• a pair of first driving means for pivoting said first eccentric bearings supported by one of said support members and said second eccentric bearing;
• second driving means for pivoting said second eccentric bearing supported by the other one of said support members;
• and
• a pair of abutting members which are supported by said support members and against which said abutting portions of said first eccentric bearings abut when said first cylinder abuts against a second cylinder upon driving operation of said first driving means,
• wherein throw-on and throw-off operations of the first cylinder to the second cylinder are performed by pivoting a pair of said first eccentric bearings,
• wherein skew adjustment of the first cylinder in relation to the second cylinder is performed by pivoting the second eccentric bearings, and
• wherein the abutting portions of the first eccentric bearings driven by the first driving means abut against said abutting members to form (1) a first urging portion from the other one of the first eccentric bearings to the support members, (2) a second urging portion from one of the first eccentric bearings to the second eccentric bearings and (3) a third urging portion from the second eccentric bearings to the support members.