| 摘要 |
<p>A switchable rotation drive device (1) has a switching mechanism (6) wherein a first connecting sleeve (61) that always rotates integrally with a motor hollow rotor (3), and a second connecting sleeve (61) that always rotates integrally with a planetary carrier (53) of a planetary gear reduction mechanism (5) are connected via a bearing (63) in a relatively rotatable state, and the first connecting sleeve (61) is formed with a sun gear (51). By sliding the switching mechanism (6), the output shaft can be switched between high-speed rotation and low-speed rotation. In comparison to a case in which the entirety of the planetary gear reduction mechanism (5) is made to slide, the sliding region may be smaller, and the required space needed to allow sliding may also be smaller. Therefore, it is advantageous to reduce the size of the device and make it more compact.</p> |
