| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor structure for a motor that is able to reduce vibration and noise during rotation while ensuring torque capacity and durability.SOLUTION: A rotor structure for a motor is provided, in which a rotor shaft 13, as a rotary shaft, to which a rotor 14 is mounted is rotatably supported by bearings 16, 17, as support parts for a motor 12. In the rotor structure, the rotor shaft 13 has a double structure, inside and outside, formed from: an outer shaft 131 to which the rotor 14 is attached; and an inner shaft 132 arranged radially inside the outer shaft 131, and configured to rotate and output toward a deceleration mechanism 22 as a rotation output target. The inner shaft 132 is connected to the outer shaft 131 further from the deceleration mechanism 22 than the deceleration mechanism 22 side end part of the external shaft 131 in the axial direction thereof. |
