PROBLEM TO BE SOLVED: To provide a remotely operated actuator which can change by remote operation the attitude of a tool mounted to the tip of an elongated pipe section, rotating the tool at a high speed to perform cutting, and having good assemblability and mass productivity of the pipe section.SOLUTION: The remotely operated actuator includes an elongated spindle guide section 3, a tip member 2 mounted to the tip of the spindle guide section 3 in such a manner that the attitude of the tip member is changeable, and a drive section housing 4a to which the base end of the spindle guide section is joined. The tip member 2 rotatably supports a spindle 13 for holding a tool 1. The spindle guide section 3 is provided with a rotating shaft 22 for transmitting rotation to the spindle 13. In the spindle guide section 3, a rotating shaft support member 26 for rotatably supporting the rotating shaft 22, fixedly supporting members 30 and 34 for fixedly supporting the rotating shaft support members 26, and a gap adjusting means 51 for adjusting a gap dimension between the rotating shaft support member 26 and the fixedly supporting members 30 and 34 are provided.COPYRIGHT: (C)2011,JPO&INPIT【課題】 細長いパイプ部の先端に設けられた工具の姿勢を遠隔操作で変更することができ、工具を高速回転させて切削加工することができ、パイプ部の組立性および量産性が良好な遠隔操作型アクチュエータを提供する。【解決手段】 細長形状のスピンドルガイド部3と、その先端に姿勢変更自在に取付けられた先端部材2と、スピンドルガイド部3の基端が結合された駆動部ハウジング4aとを備える。先端部材2は、工具1を保持するスピンドル13を回転自在に支持する。スピンドルガイド部3は、スピンドル13に回転を伝達する回転軸22を有する。スピンドルガイド部3内に、回転軸22を回転自在に支持する回転軸支持部材26と、この回転軸支持部材26を固定状態に支持する固定支持部材30,34と、これら回転軸支持部材26と固定支持部材30,34間の隙間寸法を調整する隙間調整手段51とを設ける。【選択図】 図2
