| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten handling and working time in a reactor. <P>SOLUTION: An insertion guide 14 includes a handling tool 12 and a grid guide 16. A stopper for preventing separation of the handling tool to the upper part is provided in the upper surface of the insertion guide 14, and the grid guide passes through a region other than the region provided with the stopper. In the insertion guide 14, two pairs of side surfaces are provided so that one side out of four sides in the lower surface is positioned under other three sides or one vertex out of four vertices in the lower surface is positioned under other three vertices. The insertion guide 14 further includes: a landing section 23 for landing the insertion guide on lattice frames of an upper-part lattice plate 34 in a reactor; a holding mechanism 20 for holding the insertion guide so as to be integrated with the grid guide; and a releasing mechanism 22 for releasing the holding of the insertion guide and the grid guide through the holding mechanism and separating the insertion guide from the grid guide. <P>COPYRIGHT: (C)2012,JPO&INPIT |
