| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor and a yoke which can reduce vibration by eliminating the enlarging of the size. SOLUTION: This motor 1, formed into an almost bottomed cylindrical shape, comprises a yoke 4 formed with a through-hole 4c at an internal of 180 degrees in a flange part 4a in an opening part thereof, an end housing 7 having an internal thread part 7a fixed to a part of the through-hole 4c by a screw 8 to close an opening part of the yoke 4, and a pair of fixed field magnets formed into circular arc shapes of less than 180 degrees along the internal peripheral surface of the yoke 4, to face the internal peripheral surface of the yoke 4. An engaging protruded part 4d is formed in a part which does not have the through-hole 4c of the flange part 4a of the yoke 4, the engaging protruded part 4d is fitted to the end housing 7, and an engaged recessed part 7b enhancing rigidity in the opening part of the yoke 4 is formed.
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