Asmo Co., Ltd.

Hideki Toida

Toshio Yamamoto

Tomoyuki Kikuta

Masayuki Kuwano

Masahiko Komoda

Keiichi Uemura

A yoke housing accommodates an armature having a coil and has a tubular circumferential wall. The yoke housing includes a plurality of pieces, which form the yoke housing, and a fracture portion, which is located along a boundary between the pieces. The fracture portion fractures when a compression force is applied from the outside to break the yoke housing into the pieces.

Yoke housing and motor

An armature includes a rotary shaft, a core, and a coupling member. The core is formed by using magnetic metal powder and has a tooth. A wire is wound about the tooth. The coupling member has a ductility that is higher than the ductility of the core. The coupling member is located between the core and the rotary shaft. The rotary shaft is press fitted in the coupling member, and the coupling member is press fitted in the core.

Growing community of inventors

Shizuoka-ken, Japan

Hideki Toida