Koenig Bauer-albert Aktiengesellschaft

Peter Schroder

Helmut Puschnerat

Wolfgang Gunter Ruckmann

Arrangement for retaining a curved support

A rubber blanket unit is structured having an underlying support plate with angled end legs, and an overlying rubber blanket with leading and trailing ends. The rubber blanket unit is secured to a blanket cylinder by insertion of the end legs into a thin cylinder slit. The rubber blanket ends are formed each having a reduced thickness and each further having a closure element. The leading and trailing blanket end closures cooperate to form an essentially seamless rubber blanket when the blanket unit is in place. The blanket ends are not dislodged by mechanical or chemical cleaning.

Rubber blanket for a rubber blanket cylinder

A device for fastening a rubber blanket unit to a blanket cylinder utilizes a rubber blanket secured to the surface of a support plate which is provided with beveled ends. These ends are insertable into a narrow slit in the cylinder and are held in the slit by pressure elements. The beveled support plate end lateral surfaces are in contact with each other.

Device for fastening a rubber blanket unit to a blanket cylinder

A plate end of a flexible printing plate is clamped or retained in a narrow slit in the surface of a plate cylinder. A rotatable spindle is situated adjacent a radial inner end of the cylinder slit. This spindle carries a group of pressure elements having pressure cams that are engageable with the plate ends during rotation of the spindle and which secure or clamp the plate ends in the narrow cylinder slit.

Device for clamping plates on a cylinder

A rubber blanket cylinder for offset printing utilizes a cylinder body that has magnetic strips to retain a rubber blanket packing comprised of a rubber blanket and a ferromagnetic rubber blanket support. A fastening strip is positioned on the circumference of the cylinder body and extends axially along the cylinder. The rubber blanket packing is prevented from wandering or shifting by the fastening strip. A free end of the fastening strip is covered by the rubber blanket which is thus fastened on the cylinder body in an essentially gap-free manner.

Rubber blanket cylinder for offset printing

A plate clamping device which is usable to secure at least one end of a flexible plate to a cylinder utilizes a group of spring fingers that are shiftable radially in an axially extending slit in the cylinder to engage apertures in the end of the plate. The spring fingers have barbs that are receivable in these plate end apertures. The spring fingers are shiftable radially in the cylinder slit by rotation of a spindle situated in the cylinder.

Growing community of inventors

Hessheim, Germany

Peter Schroder