| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lid body for a pipe lining material which can be easily carried in, attached to/detached from the pipe lining material and carried out without placing a burden on a worker and is applicable to an existing manhole having an aperture smaller than the diameter of the lid body. <P>SOLUTION: The lid body 4 attached to an opening of the pipe lining material 1 to maintain inside of the pipe lining material 1 in an airtight state has a divided construction comprising divided structures 41a, 41b, 42a, 42b, 42c each having a size which can be carried in from the existing manhole 3 having the aperture smaller than the diameter of the lid body 4. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
