| 摘要 |
<p>A swing device is provided with a case, a rotation member which rotates relatively with respect to the case, and a stop which restricts the swing range of the rotation member with respect to the case. A plurality of grooves which extend in the direction of the axis of the rotation member are formed along an arc that is concentric with the axis of the rotation member. In each of the protruding sections which demarcate two adjacent grooves, there is formed a bolt hole through which is passed a bolt for fixing the case. Part of the stop is fitted into a groove. Furthermore, the stop is fixed to the case with a bolt for fixing the case.</p> |
