| 摘要 |
PURPOSE: A feed screw apparatus is provided to displace a displacement body combining with a feed screw shaft with a screw along an axial direction under a driving action of a rotation driving source, thereby reducing a noise. CONSTITUTION: An actuator(10) includes a slider able to displace along an axial direction of a body. A screw thread is formed in a circumference of a feed screw shaft(50). A displacement body is screwed with the screw thread. The displacement body is installed in an outer peripheral side of the feed screw shaft. A supporting apparatus(56) supports the displacement body with respect to the slider in order to be able to displace in an opposite side. |
