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Method and apparatus for manufacturing AC-generator's stator for vehicle

  • US 6,249,956 B1
  • Filed: 06/15/1999
  • Issued: 06/26/2001
  • Est. Priority Date: 10/16/1997
  • Status: Expired due to Term
First Claim
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1. A method of twisting plural U-shaped conductor segments, each of which has a turn portion, a first-side straight portion and a second-side straight portion comprising:

  • inserting said first-side straight portions into holding holes of a first turning-tool and inserting said second side straight portions into holding holes of a second turning-tool, said first turning-tool and second tuning-tool being disposed to be concentric to relatively rotate in circumferential directions opposite to each other;

    holding only a middle portion of each of said turn portions in circumferential directions to restrict circumferential movement of said turn portions, and twisting said turn portions by relative rotation of said first and second turning tools while said middle portion is held in said circumferential direction.

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