Heidelberger Druckmaschinen Ag

Manfred Gross

Karl-Heinz Helmstädter

Carsten Kelm

Hans-Peter Hiltwein

Bernhard Buck

Hendrik Frank

Rolf Spilger

Wolfgang Bitterich

Siegfried Kurtzer

Thomas Schaeffer

Michael Krüger

J&uuml;rgen Rothaug

Volker Müller

Jürgen Maass

Norbert Thünker

A gripper device in a sheet-processing machine includes a gripper, a gripper pad associated with the gripper and a first drive for moving the gripper out of an opened position thereof into a closed position thereof. The gripper is cooperatively engageable with the gripper pad for producing a clamping force for holding sheets being processed. A second drive is separately operable from the first drive during a production printing operation of the sheet-processing machine. The first and second drives are operable for positioning the gripper and/or the gripper pad so that clamping faces of one of the gripper and/or the gripper pad are movable by the second drive perpendicularly to clamping faces of the other of the gripper and/or the gripper pad.

Gripper device in a sheet-processing machine

A pressing device for a printing press or varnishing machine includes a pressing roller for rolling a cylinder packing or dressing onto a circumferential surface of a cylinder, and a finger protection device including a first flap and a second flap connected to the first flap via a swivel joint. The first flap is formed as a pressing element for pressing the cylinder packing on the cylinder. The first flap, in a protective position thereof, covers an inlet wedge or pocket jointly formed by the pressing roller and the cylinder. A printing press or varnishing machine having the pressing device is also provided.

Pressing device for a printing press or varnishing machine

An apparatus for transmitting a torque from a drive shaft for a component of a printing machine to a hollow body surrounding the drive shaft, includes a coupling configuration. The coupling configuration is formed through the use of driver elements, engages in a longitudinally displaceable manner on the drive shaft and couples the latter to the hollow body. In order to use such an apparatus for torques which are not constant, according to a first variant, the coupling configuration includes a coupling ring surrounding the drive shaft, a first subgroup of driver elements coupling the drive shaft to the coupling ring, and a second subgroup of driver elements coupling the coupling ring to the hollow body. According to a second variant, the driver elements couple the drive shaft directly to the hollow body and are resilient in an at least substantially radial direction and in the circumferential direction of the drive shaft, relative to an axis of rotation of the drive shaft. A sheet-processing printing machine is also provided.

Apparatus for transmitting a torque and sheet-processing printing machine

A sheet gripper in a sheet-fed rotary printing press, having a pivotally supported gripper shaft, whereon a gripper element cooperatable with a gripper pad is pivotally disposed and a clamping element is fixedly disposed, includes a spring element for placing the gripper element and the clamping element into operative contact, the spring element being formed as a leaf spring.

Sheet gripper in a sheet-fed rotary printing press

Growing community of inventors

Dossenheim, Germany

Manfred Gross