Appeal No. 2006-2872
Application No. 10/248,928
BACKGROUND
The appellant's invention relates to a method of manufacturing a stator coil
structure for a rotating field electrical machine so as to provide high efficiency and
compact size (present specification, p. 1). Independent claim 1 is illustrative of the
invention and reads as follows:
1. A method of winding the coils of a rotating electric
machine comprising a circular core of a magnetic
material and a plurality of magnetic pole teeth extending
radially from the circular core wherein each of the
magnetic pole teeth defining a core and slots formed
between adjacent magnetic pole teeth, each of the slots
defining a mouth formed between adjacent outer ends of
the cores, said winding method comprising the steps of
positioning a threading needle having an opening through
which the wire for the winding the coils is fed in
proximity to one of the mouths, moving the needle
opening in a path around one of the pole teeth at one side
of slot without moving the needle in any substantial
distance along the length of the one pole tooth to form a
first winding, and continuing the movement of the needle
opening in a path around one of the pole teeth at one side
of slot without moving the needle in any substantial
distance along the length of the one pole tooth to form
succeeding windings each of which forces the previous
winding along the pole tooth toward the circular core
without requiring movement of the needle in any
substantial distance along the length of the one pole tooth
so that the needle need not be moved any substantial
distance into the slot.
2
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