To provide a small-sized motor for improving motor efficiency and workability by making larger output torque obtainable by arranging rotors at two places on both the inside-diameter side and the outside-diameter side of a stator, and at the same time, by making not an air core coil but a wound laminate iron core as a magnetic pole, and by forming as an annular resin molded structure in a state of equally distributing only a prescribed number in the shape of the concentric circle.
The small-sized motor is the small-sized motor M comprising the rotation side B, which is provided oppositely to the stator 6 and rotates around the central shaft 1 to the fixed side A having the central shaft 1 to which the stator 6 is provided. It is characterized with the permanent magnet rotors 11, 12 being arranged to both of the inner diameter side and the outside diameter side of the stator 6 on the rotation side B across the stator 6 to the stator 6 provided to the fixed side A.
AIDA EIZABURO
SEKI MUTSUAKI
Tadao Noguchi