Device having tension control means including a coil spring for

Details Device having tension control means including a coil spring for Device having tension control means including a coil spring for

1999-03-08

2000-06-27

Walsh, Donald P.

Winding, tensioning, or guiding

Tension control or brake

Take-up coil drive control

2423346, 2424218, 2424224, B65H 2318

Patent

active

060796588

ABSTRACT:
A device in which an elongate material which can be wound in the form of a roll is driven in a transport direction. The device has tension control means for controlling the tension in the material when the material is driven, which tension control means comprise a flexible braking member which is passed around a braking drum. The braking member is formed by a coil spring which has two spring arms, one of which is movable in order to influence the braking force of the coil spring in dependence on the instantaneous tension in the material.

REFERENCES:
patent: 3405791 (1968-10-01), Kaplan
patent: 3539129 (1970-11-01), Schmidt et al.
patent: 5167380 (1992-12-01), Choi
patent: 5709348 (1998-01-01), Kim
patent: 5769350 (1998-06-01), Oka
patent: 5927631 (1999-07-01), Yoo
patent: 5934593 (1999-08-01), Okuie

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