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US 4,355,459 AGranted
Method of coiling a wire in a tube
OwnerTeruo Takahashi, Rintaro Itoinventors
Life of this patent
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Abstract
This invention provides an improvement of an apparatus and method of coiling an insulating electric wire in an insulating tube which is supported within a U shaped groove of a supporting frame provided on a stand. The wire is fed into the tube from a wire supporting roll by a wire lead mechanism having a driving friction roll and a vibratory friction roll controlled by a spring.
Claims7
Method of coiling a wire comprising:
- positioning a hollow tubular member in a frame in such manner that the tubular member is held in a fixed position and a first gap is formed between first and second ends of the tubular member;
- inserting a leading end of wire into the tubular member through the first end;
- continuously feeding the wire into the tubular member by wire feeding means having a friction driving roll cooperating with a vibratory friction roll so that the leading end of the wire advances through the tubular member and wire enters the tubular member through the first gap, the leading end of the wire exiting from the second end of the tubular member and entering again the first end whereby continuous feeding of the wire forms a coil within the tubular member;
- removing the tubular member and coil from the frame;
- sliding a sleeve over an end of the tubular member prior to positioning the tubular member in the frame;
- and
- sliding the sleeve with respect to the tubular member after formation of the coil so that the sleeve is moved into a covering position covering a portion of the coil located in the first gap.
4 more elements
A method of coiling a wire using an apparatus having a frame for holding a tubular member in a fixed position and wire feeding means having a friction driving roll for advancing wire, said method comprising:
- positioning a hollow tubular member in a fixed position in the frame, the tubular member having first and second ends spaced from each other to define a gap adjacent the wire feeding means;
- actuating the wire feeding means to feed a leading end of wire into the first end of the tubular member whereby continued feeding of wire into the tubular member through the first gap advances the leading end of wire through the tubular member, out of the second end, and back into the first end to thereby form a coil within the tubular member;
- removing the tubular member and coil of wire from the frame;
- sliding a sleeve over an end of the tubular member prior to positioning the tubular member in the frame;
- and
- sliding the sleeve with respect to the tubular member after formation of the coil so that the sleeve is moved into a covering position covering a portion of the coil located in the first gap.
3 more elements
Dependencies are inferred from the claim text.