| 摘要 |
<p>The size of a device formed by combining a motor and a gear transmitting device is reduced. A gear transmitting device is of the eccentric rocking type in which an internally toothed gear eccentrically rotates. The gear transmitting device is provided with an externally toothed gear and the internally toothed gear eccentrically rotating relative to the externally toothed gear while meshing therewith. At least one first recess in which a part of a motor is located is provided on the outer peripheral side of the internally toothed gear. The axial length of the device formed by combining the motor and the gear transmitting device can be reduced. Also, the radial length of the device formed by combining the motor and the gear transmitting device can also be reduced.</p> |
