| 摘要 |
PROBLEM TO BE SOLVED: To easily ascertain whether or not a sealnt groove is sufficiently filled with a sealant. SOLUTION: The structure is such a one wherein a joining body 24 comprising a flange on one side and another joining body 25 comprising any one of a flange, an insulating spacer and a lid body on the other side are connected tightly with each other at annular peripheries thereof with tightening bolts 13 and nuts 14, and an annular sealant groove 7 is formed at a joint of both of the joining body 24 and the joining body 25 and sealant is injected into the sealant groove 7. The structure is also equipped with insert holes 26 formed at either of the joining body 24 or the joining body 25 and communicating with the sealant groove 7, insert bodies 28 inserted into the insert holes 26, and through holes 30 positioned between the bottom of the sealant groove 7 and the bottoms of the insert bodies 28 and formed respectively at partition bodies 29 partitioning the sealant groove 7 and the insert holes 28 and communicating with the sealant groove 7 at both sides of the partition bodies 29. |
