| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a linear motion actuator capable of relatively easily changing a connecting position of an operated body to an operating body. <P>SOLUTION: The linear motion actuator comprises rotation driving bodies 3, 4, and the operating body 5 connected to the operated body 60 which transmits a load, and provided to be displaceable toward the axial center in such a manner that its rotation around the axial center is restricted. The rotation driving bodies 3, 4 and the operating body 5 are screw-engaged with each other for converting the rotating motion of the rotation driving bodies 3, 4 into the displacement of the operating body 5 toward the axial center. The operated body 60 is inserted through a through cavity part 5V of the operating body 5, and its base ends 20, 60a are supported by the first end of the operating body 5. A position changing part 30 is provided at the first end 5b of the operating body 5 existing outside a casing 1 for changing the positions of the base ends 20, 60a relative to the operating body 5 along the axial center. <P>COPYRIGHT: (C)2008,JPO&INPIT |
