Plate clamping apparatus of printing machine

Printing – Work supporting members – Grippers

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Details

1014151, 101477, 271204, B41F 130

Patent

active

055643370

ABSTRACT:
There are provided an operating mechanism 5 having an operating portion, for example, freely rotatable roller 4, which is displaced to a setting position Ps of pressure-contacting to the plate belt 2 by a spring member 3 and a releasing position Pr spaced apart from the plate belt 2, a fore clamping mechanism 8 supported in a seasaw manner on widthwise supporting shafts 6 . . . disposed on the plate belt 2, and having clamping portions 7c . . . for clamping a fore portion of the plate S at one end thereof, operated portions 7m . . . pressed by the freely ratable roller 4 at the setting position Ps, at the other end thereof, and fore clamps 7 . . . pressed in a clamping direction by spring members 9 . . . , and a rear clamping mechanism 12 supported in a seasaw manner on a widthwise supporting shaft disposed on the plate belt 2 at a rearward of the fore clamping mechanism 8, and having a clamping portion 11c for clamping a rear portion of the plate S at one end thereof, operated portions 11m . . . pressed by the freely rotatable roller 4 located at the setting position Ps, at the other end thereof, and a rear clamp 11 pressed in a clamping direction by spring members 13 . . . . Thereby, a miniaturizing of the whole printing machine can be caused, and further a reliability and a maintainability thereof can be improved.

REFERENCES:
patent: 2374668 (1945-05-01), Davidson
patent: 4155639 (1979-05-01), Bejerano et al.
patent: 4421026 (1983-12-01), McCullion, Jr.
patent: 5053826 (1991-10-01), Castelli et al.
patent: 5160944 (1992-11-01), Fukumoto et al.
patent: 5289768 (1994-03-01), Keller
patent: 5477780 (1995-12-01), Keller

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