Printing – Flexible-sheet-securing devices
Patent
1974-08-28
1978-07-18
Mancene, Louis G.
Printing
Flexible-sheet-securing devices
101378, B41F 2706
Patent
active
041008545
ABSTRACT:
A device for mounting a plastic film based resin plate for use in printing on a plate cylinder has a groove formed along one longitudinal side edge of each of two members having a symmetrical semicircular section and constituting a plate cylinder, each of said two members consisting of a plate cylinder proper and a plate cylinder outer ring, a fixing member made of a resilient material and having a wedge-shaped protrusion adapted to fit into said groove, said fixing member being fixedly secured to a freely rotatable support shaft which is mounted at a position adjacent to groove and is connected through a linkage to a first operating rod. The device further comprises a support shaft mounted at a position adjacent to the other longitudinal side edge of each of said two members, said support shaft having fitted thereon and fixedly secured thereto a tension member formed with a groove and a holding member having formed thereon a protrusion adapted to fit into said groove, another support shaft adapted to be rotated by means of an operating rod, and a cam for operating the tension member and a cam for operating the holding member fixedly secured to said another shaft. These cams are arranged in such an angular relationship that the tension member is kept away from the holding member when the operating rod is located at an open position, and the protrusion of the holding member is fitted into the groove of the tension member when the operating rod is located at a locking position, and further the tension member and the holding member are rotated together away from said other longitudinal side edge while the protrusion remains fitted into the groove when the operating rod is rotated from the locking position to a tensioning position.
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Fujishiro Yuji
Ohta Hideo
Hirsch Paul J.
Japan Society for Promotion of Machine Industry
Mancene Louis G.
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