Patent ID: 6722652
Filing Date: 2004-04-20
Classification: B41F

Abstract:
An intermediate cylinder which is used in a sheet-fed press to convey a sheet, said intermediate cylinder comprising:a main body; at least one set of a gripping mechanism and a plurality of suction boxes, said gripping mechanism being disposed at a predetermined circumferential position of said main body and being for gripping a front end of said sheet, and said plurality of suction boxes, each of which being for sucking and holding a tail of said sheet whose front end is gripped by said gripping mechanism, being disposed in said main body at different distances from said gripping mechanism; a plurality of suction bores formed in said suction boxes so that they are open at an outer peripheral surface of said main body; suction force generation means for generating suction force within said suction boxes; and switching means for selectively switching connections between said plurality of suction boxes and said suction force generation means.