| 摘要 |
<p>PURPOSE:To make the repairing of a pipe achievable from the inner surface side in a short time and accurately as well, by laminating X covers consisting of a thermoplastic resin impregnated sheet in piles in a central area on the outside of a sheetlike base free of widening motion so as to constitute a repairing coating body. CONSTITUTION:When a pipe 48 of a sewer or the like is repaired, first of all, in a state that a coating body consisting of a base 12 and a cover 14 is externally fitted in an expander 40, these elements are shifted up to the spot of a recess 50 formed in a repairing spot, in this pipe 48 via a rope 52. Next, an expansion part 44 of the expander 40 is inflated by compressed air to be fed via a nipple 46, and a coating body 10 is expanded, insomuch that both ends of the base 12 are slightly overlapped, and simultaneously the cover 14 consisting of a thermoplastic resing impregnated sheet is expanded in the radial direction in the state that both the ends are slightly lapped, thereby making the cover 14 and a partition member 16 go along an inner surface of the pipe 48. Subsequently, pressure in the expansion part 44 is released and the expander 40 is pulled out, while the base 12 is made to maintain its expanded form with its engagement with an engaging hole in an engaging part 28.</p> |
