Hitachi, Ltd.

Hitachi Taga Engineering, Ltd.

Iko Fukasawa

Takeshi Nakajima

Yuji Kumagai

A polygon mirror assembly includes a polygon mirror and a supporting stand for supporting the polygon mirror. The supporting stand and the polygon mirror are combined in a pressure joining manner. The polygon mirror supporting structure can be provided so that the fastening of the polygon mirror is easily carried out, no unbalance of the center of rotation occurs and any eccentricity can be made extremely small.

Polygon mirror motor and polygon mirror supporting structure

A polygon mirror assembly includes a polygon mirror and a supporting stand for supporting the polygon mirror. The supporting stand and the polygon mirror are combined in a pressure combination manner. The polygon mirror supporting structure can be provided so that the fastening of the polygon mirror is easily carried out, no unbalance of the center of rotation occurs and any eccentricity can be made extremely small.

An electric rotary machine provided with a toroidal winding has a stator core made of annular punched seamless laminations. Insulation members, each having partition plates, are mounted on the stator core. Crossover conductor portions interconnecting unit coils of the toroidal winding are retained and guided by the partition plates. The unit coils in each of the slots formed in the stator core are wound by a single continuous electrical conductor, to yield a machine of highly improved performance.

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Hitachi, Japan

Iko Fukasawa