Device for axially reciprocating an inking-unit roller

Details Device for axially reciprocating an inking-unit roller Device for axially reciprocating an inking-unit roller

1980-07-30

1982-07-06

Crowder, Clifford D.

Printing

Inkers

Roller

101DIG14, 74 57, B41F 146

Patent

active

043376991

ABSTRACT:
Device for axially reciprocating a printing-unit roller having a stationary shaft and a roller jacket rotatably driven by friction drive, the device being disposed within the printing-unit roller and being driven by rotational movement of the printing-unit roller, including drive means for effecting axial reciprocation of the printing-unit roller at a speed reduced with respect to the rotational speed of the printing-unit roller including two roller bearings disposed within the printing-unit roller between the roller jacket and the shaft, a first bushing revolving as a cage associated with the roller bearings and being formed with a first groove, a second bushing fixed in the roller jacket and formed with a second groove, one of the grooves being of elliptic form, and a ball being received simultaneously in both of the grooves and being rollable therein.

REFERENCES:
patent: 3110253 (1963-11-01), Du Bois
patent: 3590644 (1971-07-01), Kuspert
patent: 3815498 (1974-06-01), Harrod
patent: 4090478 (1978-05-01), Trimble et al.
patent: 4170176 (1979-10-01), Domeniconi

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