Printing – Flexible-sheet-securing devices
Patent
1985-11-29
1987-03-03
Fisher, J. Reed
Printing
Flexible-sheet-securing devices
B41F 2706, B41F 2712
Patent
active
046466398
ABSTRACT:
To simply and reliably connect together clamping jaws located in the groove of a printing machine cylinder, while permitting secure and aligned positioning of jaw pairs holding the leading edge of a printing plate while permitting self-alignment or self-adjustment by pivoting movement of jaw pairs holding the trailing end, a bolt with an intermediate flange is screwed into the side wall of the groove, the jaw which is to positively position the leading end of the plate is engaged against the flange and located by a nut threaded on the bolt, the bolt previously having been adjusted to set the circumferential register of the plate by screwing into--and out--from the cylinder wall. The associated jaw of the pair clamps the plate in position. At the trailing end, the nut is not used or loosened, for example held against removal by a C-ring, so that springs which clamp both jaws together can also move that one of the jaws closest to the side wall towards the inside of the groove, thus tensioning the trailing end of the plate.
REFERENCES:
patent: 3230883 (1966-01-01), Achinger et al.
patent: 3335663 (1967-08-01), Harenza
patent: 3359899 (1967-12-01), Cuehrs
Gollinger Franz X.
Hechler Hatto
Fisher J. Reed
Man-Roland Druckmaschinen Aktiengesellschaft
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