| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a plug that is adaptable on sealing pipe to various kinds of bore size and various kinds of shape at pipe end. SOLUTION: A fluid is supplied through a check valve 22 and a supply pipe 14 to an inflatable body 12 inserted into a pipe 36. Thereby, the inflatable body 12 is stuck close to the internal face of the pipe 36 and seals up the pipe 36. The supply pipe 14 provided being integral with the inflatable body 12 is housed almost entirely in a guide 16. The guide 16 is supported with a holder main body 26 of a holder 24. The pipe 36 is held between arms 30 of the holder 24, and thereby the guide 16 and the inflatable body 12 are supported and fixed to the pipe 36.</p> |
