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AssigneeShonan Gosei-Jushi Seisakusho K.K.
InventorsTakao Kamiyama, Koji Kaneta, Kenji Fujii, Makoto Ishida
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A segment is coupled to another segment in the circumferential and longitudinal directions to assemble a rehabilitating pipe for rehabilitating an existing pipe. The segment is provided with a recessed part in a coupling surface in the longitudinal direction at a portion that is brought into contact with the bottom surface of the existing pipe when the rehabilitating pipe is laid inside the existing pipe. When the segments are coupled in the longitudinal direction of the rehabilitating pipe, the recessed part forms a gap between the coupling surfaces to provide a space for accommodating waste existing on the bottom surface of the existing pipe, thus enabling the coupling work in the longitudinal direction to be performed simply and in a short period of time because it is unnecessary to remove the waste.
A segment for a rehabilitating pipe that is coupled to another segment in the circumferential and longitudinal directions to assemble the rehabilitating pipe for rehabilitating an existing pipe, the segment being provided with a recessed part in a coupling surface in the longitudinal direction to form a gap between the coupling surfaces when the segments are coupled in the longitudinal direction of the rehabilitating pipe.
Dependencies are inferred from the claim text.