| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain improvement in seal performance. <P>SOLUTION: The tubular fastening part 42 of a seal ring 40 is bitten in the outer circumference of a pipe P in an airtight manner. When the holding part 43 of the seal ring 40 is locked to the lock part 36 of a lock nut 32, the seal ring 40 and the lock nut 32 are assembled and held in the state where the tubular fastening part 42 is accommodated inside the lock nut 32. Under an incomplete seal state where the tubular fastening part 42 is not bitten in the pipe P in the airtight manner, a detecting part 35 is separated from a stopper 24. Under a regular seal state where the tubular fastening part 42 is bitten in the pipe P in the airtight manner, the detecting part 35 is abutted on the stopper 24. <P>COPYRIGHT: (C)2013,JPO&INPIT |
