Patent ID: 6264190
Filing Date: 2001-07-24
Classification: B65H

Abstract:
A suction unit in a sheet-fed rotary printing press, comprising:a plurality of suction members provided below a sheet convey path to draw a sheet-like printing product in a slidable contact by suction;a plurality of support members for supporting said suction members to be movable in a sheet convey direction;a drive mechanism for driving said suction members in the sheet convey direction;a fixing member for detachably fixing said suction members to said support members,wherein said suction members are connected to said drive mechanism when said suction members are fixed to said support members by said fixing member and disconnected from said drive mechanism when said suction members are released from said support members;wherein said suction members each has at least one suction hole for sucking the sheet-like printing product in the sheet convey direction;wherein said suction members comprise suction wheels each having a circumferential surface formed with a large number of suction holes, said drive mechanism rotatably drives said suction wheels in the sheet convey direction, and said support members rotatably support said suction wheels; andwherein said drive mechanism comprises a drive shaft rotatably driven by a drive source and a gear rotating together with said drive shaft to mesh with said suction holes of said suction wheels, and said suction holes of said suction wheels are formed at the same pitch as that of teeth of said gear.