Printing – Rolling contact machines – Rotary
Patent
1988-09-30
1990-03-06
Crowder, Clifford D.
Printing
Rolling contact machines
Rotary
101425, B41F 3300, B41F 3500
Patent
active
049055968
ABSTRACT:
To provide a cleaning arrangement which includes brushes brushing against the surface of a rubber blanket or other printing cylinder, to remove lint, dust, dirt and other contaminants therefrom a strip of brushes (9), preferably backed up by a suction pipe (8) to remove lint from the surface of the cylinder and from the brushes, is located inwardly of the finger guard strip (6) which is provided in advance of the nip between rotating cylinders as a safety measure. The cleaning elements, that is, brushes (9) and suction tubes (8), if provided, are located inwardly, with respect to the nip, of the safety guard or safety rail (6) which, typically, has angled or essentially in cross section part-circular, typically semi-circular shape. The safety guard is usually supported by levers (11) or slidably supported in the printing machine, to be placed out of position from the nip when the machine is stopped. The cleaning elements, that is brushes and suction tube, if provided, move with the safety rail to provide access to the nip between the cylinders when the machine is stopped. The cleaning structure does not require additional space or holding elements in the machine since the holders (11) for the safety guard rail (6) likewise support the cleaning elements (8, 9).
REFERENCES:
patent: 1196438 (1916-08-01), Doyle et al.
patent: 1562010 (1925-11-01), Stuke
patent: 2086227 (1937-07-01), Huck
patent: 2704026 (1955-03-01), Rogge
patent: 2961953 (1960-11-01), Mosegaard
patent: 3508711 (1970-04-01), Switall
patent: 3735702 (1973-05-01), Kossak
patent: 4162652 (1979-07-01), Rebel
patent: 4669380 (1987-06-01), Seib et al.
patent: 4765240 (1988-08-01), Kraus
"Druck Print" 4/1975, pp. 198, 190, 192.
Crowder Clifford D.
MAN Roland Druckmaschinen AG
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