Sheet feed drum for a sheet-fed rotary printing machine comprises a drive for pivoting a support and for producing an opening and closing movement of a gripper row

摘要

Sheet feed drum comprises a drive for pivoting a support (08) and for producing an opening and closing movement of a gripper row (58, 59). A cam drive with a cam support is provided as the drive for producing the opening and closing movement. The cam support has a cam part (83) rotationally fixed on the sheet fed drum. A catch lever (91) is provided on the cam support or on the sheet fed drum. The cam part and the catch lever have control surfaces as rolling-off surfaces for at least one roller (81) of the drive. One movable and switchable movement limiter is provided in or in the region of the pivot path of the catch lever. Preferred Features: A roller (99) arranged on a lever mechanism is provided as the movement limiter.