Aichi Elec Co.

Isao Ito

Masashi Kuroko

Mitsuhiro Suzuki

Shoji Mano

A rotary shafthaving an outside diameter larger than the bore diameter of a rotary shaft insert holeof a rotoris inserted into the rotary shaft insert hole. A magnet insert holeis provided in a main magnetic pole [a] of the rotor. Permanent magnetstoare inserted into the magnet insert holesuch that a gap is formed between the permanent magnetstoand the magnet insert hole. A semi-tubular rivet insert holeand interlockselongated in the radial direction of the rotor are disposed radially outward of the magnet insert holein the rotor. A semi-tubular rivetis inserted into the semi-tubular rivet insert holesuch that a gap is formed between the semi-tubular rivetand the semi-tubular rivet insert hole. Passage holesda are provided in the auxiliary magnetic poles [ab], [da].

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Aichi, Japan

Isao Ito