Title: Method for winding double-layer motor coils
Application Number: 85107818 Application Date: 1985.10.23
Publication Number: 1000836 Publication Date: 1986.05.10
Approval Pub. Date: 1991.09.04 Granted Pub. Date: 1991.09.04
International Classifi-cation: H01F41/04;H02K15/04
Applicant(s) Name: Sony Corp. Address:
Inventor(s) Name: Takayuki Ishii;Yuji Yamauchi
Attorney & Agent: CAO GYONGLAI
Abstract:
    A double-layer coil for an electric motor is formed of a single continuous conductor with the two layers being wound simultaneously. A first length of conductor is wound about a pulley to form a coil and at the end of that coil but without breaking the conductor another coil is commenced to be wound about a rotating bobbin, with the coil of the first length wound on the pulley being caused to orbit the bobbin at a rate twice the bobbin rotation speed, whereby the conductor coil is unwound from the pulley and rewound on the bobbin at and the same time a further conductor is being wound about the bobbin to form a second coil, thereby forming both layers of the coil simultaneously.
Time: 12