Device for damping bending vibrations in a cylinder of a rotary

Details Device for damping bending vibrations in a cylinder of a rotary Device for damping bending vibrations in a cylinder of a rotary

1991-10-17

1993-08-17

Fisher, J. Reed

Printing

Rolling contact machines

Rotary

B41F 500

Patent

active

052359093

ABSTRACT:
A device for damping bending vibrations in a printing-unit cylinder of a rotary printing press includes at least one damper disposed in a printing-unit cylinder and tunable to a wide-band frequency, the damper having at least one member with a natural frequency corresponding to a natural frequency of the printing-unit cylinder, and a device for supporting the damper member so that the damper member is deflected in phase opposition to a deflection of the printing-unit cylinder.

REFERENCES:
patent: 4125073 (1978-11-01), Bain
patent: 4487123 (1984-12-01), Kobler et al.
patent: 4487124 (1984-12-01), Kobler et al.
patent: 4739702 (1988-04-01), Kobler
patent: 4873888 (1989-10-01), Matsuyama

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