Fastening flexible printing formes

A device for fastening flexible printing plates to a plate cylinder of rotary printing machines having a channel in the plate cylinder which accommodates bent ends of the printing plate. A bore in the channel is axially parallel to the plate cylinder and has two segmented shafts arranged pivotably therein. Leaf springs are each fastened to the segmented shafts and can be brought into contact with the ends of the printing plate inserted into the channel. A region radially connects the bore to a channel gap on the periphery of the plate cylinder. The channel has lateral recesses at a distance from the channel gap and, the approximately rectangularly bent ends of the printing plate are equipped with shaped elements which project into the channel in the direction of the recesses. The shaped elements of one or both ends inserted into the channel can be moved into the recesses by bringing the respective leaf springs into contact while bending the ends.