Patent ID: 7975608

Claim:
A device for feeding a material web to a web-fed rotary printing press having a printing unit, said device comprising: a reel stand which carries a reel of said material web, said reel stand being arranged laterally next to the rotary printing press, said material web having a web path travel direction from said reel stand to said printing unit which is transverse to a machine alignment of said web-fed rotary printing press; at least one turner bar arranged in the web path travel direction between said reel stand and said printing unit, which at least one turner bar is inclined 45° in relation to the web path travel direction of the material web which is running up to said printing unit from said reel stand; an outer surface on said turner bar, said outer surface including a wraparound angular region defined as an area of said outer surface of said turner bar which cooperates with said web as said web is turned by said turner bar from said web path travel direction to said machine alignment, said wraparound angular region of said outer surface having a length; a plurality of outlet openings in said outer surface of said turner bar and embodied as micro openings which are adapted for the passage of a pressurized fluid, said outlet openings covering at least said wraparound angular region of said outer surface of said turner bar, a maximum average diameter of said micro openings being 500 μm, said plurality of outlet openings extending over said length of said wraparound angular region of said outer surface of said turner bar; and a hollow interior space in said turner bar and in fluid communication with said micro openings and through which said pressurized fluid flows, wherein, as the material web is moving, over said wraparound angular region of said turner bar, said hollow interior space is supplied with said pressurized fluid which exits through said micro openings over said length of said wraparound annular region which is greater than the width of said wraparound angular region of said outer surface of said turner bar which is covered by the material web which wraps around it when said material web is turned by said turner bar.