| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fixing device which stably fixes a measuring instrument in a vertical shaft to efficiently carry out fixing and fixing release or the like of the measuring instrument, when investigating the shape deformation or the like of the vertical shaft 4 with a non-contact type measuring instrument 3. <P>SOLUTION: The fixing device for fixing the measuring instrument 3 rotatable by 360° at an optional depth in the vertical shaft, includes: a center frame body 15 for supporting the measuring instrument, vertically movable and hung from above of the vertical shaft 4 with a wire body 10a; and at least three or more expandable legs 16 wherein the base end sides thereof are fixed to the center frame body 15 and the tips thereof radially extend in the horizontal face respectively to abut on the vertical shaft inner wall. The measuring instrument is stably fixed to the vertical shaft inner wall through a simple operation of lowing the fixing device 2 to extend legs 16, thereby efficiently carrying out the fixing and fixing release or the like of the measuring instrument. <P>COPYRIGHT: (C)2011,JPO&INPIT |
