EP 0331777 B1 19910904 - TENSIONING DEVICE FOR SECURING A COVER TO THE CYLINDER OF A ROTARY PRINTING MACHINE
Title (en)
TENSIONING DEVICE FOR SECURING A COVER TO THE CYLINDER OF A ROTARY PRINTING MACHINE
Publication
Application
Priority
EP 88103685 A 19880309
Abstract (en)
[origin: EP0331777A1] 1. In known tensioning devices the tensioning bar in the tensioning channel (pit) is moved by a multiplicity of screws which are to be actuated as uniformly and synchronously as possible. By means of the new device, a uniform tensioning of the covering and simplified operation from a single place are possible. 2. The tensioning bar (11) is in contact with pistons (5) via piston rods (9), which pistons can move in working cylinders (4) provided in the base (3) of the pit against the force of a spring (17). The movement takes place by supplying the piston (5) with energy, preferably a fluid under pressure, through a check-valve (21), a pressure-medium reservoir (19) and feed channels (18). 3. The tensioning device is particularly suitable for the clamping of rubber blankets on to blanket cylinders of rotary offset printing machines. <IMAGE>
IPC 1-7
IPC 8 full level
B41F 27/12 (2006.01); B41F 30/04 (2006.01)
CPC (source: EP)
B41F 27/1237 (2013.01); B41F 30/04 (2013.01)
Designated contracting state (EPC)
CH FR GB IT LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 88103685 A 19880309