Device for electromagnetically braking and clutching a spool

Details Device for electromagnetically braking and clutching a spool Device for electromagnetically braking and clutching a spool

1996-07-23

1998-01-20

Mansen, Michael

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 355T, 2424222, 2425976, 57 14, 192 6942, B65H 7530, B65H 5902, D02G 336

Patent

active

057093474

ABSTRACT:
A device (24) is provided for the electromagnetic braking and clutching of at least one storage spool (7). Each storage spool is located on a hollow shaft (5) and can rotate around its longitudinal axis (25). Each storage spool permits strand-shaped materials to be drawn therefrom and strand-shaped materials to be wound thereon when the storage spool (7) is driveably connected to the hollow shaft (5). The electromagnetic braking and clutching device includes a star-shaped support unit (31) that is securely affixed to the hollow shaft (5) and has a number of radially extending holding devices (37) distributed around its periphery. The support unit (31) holds at least one electrically excitable magnet coil (45) radially by using of a holding device (37), at a distance from the hollow shaft (5). The device is particularly suited for braking and clutching storage spools (7) with large outside diameters, which are located on a hollow shaft (5).

REFERENCES:
patent: 2746691 (1956-05-01), Hoad
patent: 3396919 (1968-08-01), Vayda
patent: 4343441 (1982-08-01), Graham
patent: 4387556 (1983-06-01), Studtmann et al.
patent: 4958780 (1990-09-01), Bruenn et al.

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