Method for producing a coil

Details Method for producing a coil Method for producing a coil

1992-11-05

1993-10-26

Gilreath, Stanley N.

Winding, tensioning, or guiding

Wound storage package

242 25R, 242175, 242177, B65H 5500, B65H 5410

Patent

active

052558630

ABSTRACT:
A method for producing a coreless coil of strand-like material in which the strand-like material, which may be wire, insulated or non-insulated cable, glass fiber or the like, is wound in several layers on a substantially cone-shaped winding spool. The layers are inclined with respect to the longitudinal axis of the winding spool. The first pair of layers each contain N.sub.1 windings. The second pair of layers each contain N.sub.2 =N.sub.1 +.DELTA.N windings, where N is a constant value. In this manner, the number of windings for consecutive layer pairs is increased until the total number of possible windings for a predetermined winding pitch is reached. The layers of each pair are wound by a take-up apparatus that moves in a first direction for winding one of the layers of a pair and in a second opposite for direction for winding the other layer of the pair. A coreless coil produced by such a method, an apparatus for carrying out the method, and an apparatus for unwinding a coreless coil also are disclosed.

REFERENCES:
patent: 4553707 (1985-11-01), Henrich
patent: 4739947 (1988-04-01), Anseel et al.

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