Carrier for flexible printing plates
AssigneeWilhelm Barenschee
InventorsEduard O. Semmler, Klaus Guthling, Adolf J. G. Meyer
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Abstract
A flexible printing plate carrier comprises a curved carrier plate at least one end of which has mounted thereon a rotatable tubular shaft having an axially extending projection about which a bent over end of the printing plate can be hooked. A pre-loaded torsion spring extends through the tubular shaft to urge the projection towards an edge of the carrier plate and to clamp the printing plate against said edge. Rotation of the shaft to the non-clamping position of the projection is effected by a hand tool insertable into a bearing for one end of the shaft.
Claims11
A device for clamping flexible printing plates having a bent-over end on a curved saddle plate to be attached to a plate cylinder or the like, wherein clamping means is provided at at least one end of said saddle plate and is of a thickness less than that of said saddle plate, said clamping means comprising a clamping element adapted for engagement with the bent-over end of the printing plate and spring loaded in the clamping direction, said clamping element having a projection or nose extending over the entire width of the saddle plate, the bent-over end of the printing plate being adapted to be hooked behind said projection which is provided on torsion spring means attached to the saddle plate, said torsion spring means comprising a rotatable tubular shaft in which a torsion spring is disposed, said torsion spring having one end thereof non-rotatably fastened to a holder mounted in a fixed position on the saddle plate and the other end non-rotatably mounted on the tubular shaft and said torsion spring being installed under initial stressing in accordance with the spring loading to be imparted to the projection.
Dependencies are inferred from the claim text.