Winding – tensioning – or guiding – Tension control or brake – Supply controlled
Patent
1997-01-21
1998-08-11
Mansen, Michael
Winding, tensioning, or guiding
Tension control or brake
Supply controlled
2424193, 242155M, B65H 5918, B65H 5936, B65H 5910
Patent
active
057915849
ABSTRACT:
A tension control unit for filamentous material applies a stable tension to filamentous material and is useful to adjust the tension easily at a low cost. The control unit supplies filamentous material from a supply source to a coil winding device while applying a given tension to it via a primary tension pulley to which damping torque is applied and a secondary tension pulley arranged at a swinging end of a tension bar biased in a direction to apply tension. The control unit includes a damping torque generator for applying damping torque to the primary tension pulley in the form of a magnetic disk which rotates integrally with the primary tension pulley and permanent magnets arranged at a given distance at least from a surface of the magnetic disk. The control further includes a stationary torque setting apparatus for setting the damping torque in a steady state by moving the permanent magnets in a radial direction of the magnetic disk.
REFERENCES:
patent: 2661914 (1953-12-01), Thom
patent: 4526329 (1985-07-01), Takeda
patent: 4570874 (1986-02-01), Takeda
patent: 5092534 (1992-03-01), Tanaka
patent: 5429319 (1995-07-01), Bogucki-Land et al.
patent: 5642865 (1997-07-01), Fell et al.
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