Printing cylinder groove filler

Details Printing cylinder groove filler Printing cylinder groove filler

1991-01-14

1992-06-30

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

1014151, B41F 702, B41F 2100

Patent

active

051253372

ABSTRACT:
To distribute loading, and reduce wear, on filler inserts upon roll-off of printing machine cylinders formed with axial grooves, such as rubber blanket cylinders in offset printing machines, the filler insert is formed with an axially curved edge or surface (9, 10; 16, 18) which, either, is provided at the engagement surface of the respective filler insert element with the bottom wall (23, 24) of the groove (3, 4) or, alternatively, at the outer or top surface. The degree of curvature is such that, with respect to a flat surface tangent to the curved surface, a spacing or gap of, at the most, 0.2 mm, and preferably only about 0.1 mm, will result.

REFERENCES:
patent: 4742769 (1988-05-01), Zeller
patent: 4815380 (1989-03-01), Fischer

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