Guide roller for printing press

A guide roller for a printing press for guiding a traveling web at a position downstream of a printing section, comprising:

• a roller body having a peripheral surface to contact with the traveling web;
• a first roller component having a first peripheral surface located at a first diametric position, said first peripheral surface contacting with the traveling web;
• a second roller component having a second peripheral surface located at a second diametric position which is different from said first diametric position, said second peripheral surface contacting with the traveling web simultaneously with said first peripheral surface;
• and said roller body being rotated by the traveling web, said first and second peripheral surfaces having first and second peripheral speeds, said first and second peripheral speeds being different from a speed of the traveling web.

A guide roller for a printing press for guiding a traveling web at a position downstream of a printing section, comprising:

• a roller body having a cylindrical core made of a plastic based composite material, a metallic layer fitted on the peripheral surface of said cylindrical core and a metallic surface coating layer formed on the peripheral surface of said metallic layer;
• a first roller component defined by said metallic layer of said roller body and having a first peripheral surface located at a first diametric position, said first peripheral surface contacting with the traveling web;
• a second roller component defined by said metallic layer and having a second peripheral surface located at a second diametric position which is different from said first diametric position, said second peripheral surface contacting with the traveling web simultaneously with said first peripheral surface;
• and said roller body being rotated by the traveling web, said first and second peripheral surfaces having first and second peripheral speeds, said first and second peripheral speed being different from a speed of the traveling web.

A guide roller for a printing press for guiding a traveling web at a position downstream of a printing station, comprising:

• a roller body having an outer periphery to contact with the traveling web;
• a first roller component having a first peripheral surface located at a first diametric position, said first peripheral surface contacting with the traveling web to be driven by the traveling web at a first peripheral speed determined by a traveling speed of the web and a first diameter at said first peripheral surface;
• and
• a second roller component integrated with said first roller component, having a second peripheral surface located at a second diametric position which is different from said first diametric position, said second peripheral surface contacting with the traveling web simultaneously with said first peripheral surface to be driven by the traveling web at a second peripheral speed determined by a traveling speed of the web and a second diameter at said second peripheral surface and interacting with said first peripheral speed of said first roller component for rotating the said first and second peripheral surfaces at said first and second peripheral speeds, said first and second speeds being different than the speed of the traveling web.

A guide roller for a printing press for guiding a traveling web at a position downstream of a printing station, comprising:

• a roller body having a cylindrical core made of a plastic based composite material, a metallic layer fitted on the outer periphery of said cylindrical core and a metallic surface coating layer formed on the outer periphery of said metallic layer;
• a first roller component defined by said metallic layer of said roller body and having a first peripheral surface located at a first diametric position, said first peripheral surface contacting with the traveling web to be driven by the traveling web at a first peripheral speed determined by a traveling speed of the web and a first diameter at said first peripheral surface;
• and
• a second roller component defined by said metallic layer and having a second peripheral surface located at a second diametric position which is different from said first diametric position, said second peripheral surface contacting with the traveling web simultaneously with said first peripheral surface to be driven by the traveling web at a second peripheral speed determined by a traveling speed of the web and a second diameter at said second peripheral surface and interacting with said first peripheral speed of said first roller component for rotating the said first and second peripheral surfaces at said first and second peripheral speeds, said first and second speeds being different than the speed of the traveling web.