| 摘要 |
The device (3) has a support unit (11) and a support unit axis that are aligned parallel to rotation axis of a spindle. A support element (9) is displaceably arranged on support unit from one side. A support element (10) is displaceably arranged on support unit from other side. The support element (9) is linearly arranged in preset displacement direction, and is rotated about one rotation axis of support unit. The support element is linearly arranged in specific displacement direction different from preset direction, and is rotated about other rotation axis of support unit. |
