Control roller having speed-dependent pressing force

Details Control roller having speed-dependent pressing force Control roller having speed-dependent pressing force

2008-05-13

2008-05-13

Culler, Jill E. (Department: 2854)

Printing

Work supporting members

Grippers

C101S409000, C101S475000, C271S277000

Reexamination Certificate

active

07370580

ABSTRACT:
In an apparatus for adapting the pressing force of a control roller on a control can in a sheet-processing machine by a torsion spring, the apparatus either changes the effective spring length or the spring stiffness as a function of the rotational speed of the sheet-processing machine. The spring can be a torsion spring rod with an actuator setting the spring force by changing the prestress. A stiffening element can be connected to the torsion spring rod and set the spring force by changing the spring stiffness of the torsion spring rod.

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patent: 102 58 271 (2003-07-01), None

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