Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1975-04-03
1976-07-06
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 8102
Patent
active
039677869
ABSTRACT:
A machine for winding small-sized toroidal coils on ring-shaped cores in which an end of a required length of wire is repeatedly passed through a ring core to produce a toroidal coil. Such machines include a generally disk-shaped stationary member with the rim thereof being adapted to guide at least a portion of the wire being wound. There is also a roller device which places a portion of the wire at its free end on the rim of the disk intermittently during the winding operation. Wire breakage has been known to occur due to the extensive area of contact of the wire on the rim and the friction therebetween. This invention overcomes this disadvantage by providing a plurality of projections on the rim periphery, thus reducing the area of contact of the wire and the friction. A mechanism is also provided for pulling a free end of the winding wire through the ring-shaped core.
REFERENCES:
patent: 2962235 (1960-11-01), Riddler
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