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AssigneeShonan Gosei-Jushi Seisakusho K.K.
InventorsTakao KAMIYAMA, Masaki TAKEYAMA
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A rehabilitation pipe is assembled inside an existing pipe using integrally formed plastic segments each comprising an inner surface plate, side and end plates. The segments are in part or all divided in the pipe-length direction to provide a variable-width segment comprising two segment halves that are moved relative to each other in the pipe-length direction to make the width of the segment in the pipe-length direction variable. A filler is injected into a space between the rehabilitation pipe and the existing pipe to provide a composite pipe. A falsework temporarily supports the rehabilitation pipe inside the existing pipe until the filler hardens. A shape-holing member is disposed circumferentially in part or all over the inner surface of the rehabilitation pipe so as to be in contact with the inner surface plate of the variable-width segment. A support member directly or indirectly supports the shape-holding member.
An apparatus for supporting a rehabilitation pipe inside an existing pipe since a filler is injected into a space between the rehabilitation pipe and the existing pipe until the filler hardens, wherein the rehabilitation pipe is assembled using integrally formed plastic segments each comprising an inner surface plate, and side and end plates provided upright on a peripheral edge of the inner surface plate, the segments being in part or all divided in the pipe-length direction to provide a variable-width segment comprising two segment halves that are moved relative to each other in the pipe-length direction to make the width of the segment in the pipe-length direction variable, the apparatus comprising:
A method for supporting a rehabilitation pipe inside an existing pipe since a filler is injected into a space between the rehabilitation pipe and the existing pipe until the filler hardens, wherein the rehabilitation pipe is assembled using integrally formed plastic segments each comprising an inner surface plate, and side and end plates provided upright on a peripheral edge of the inner surface plate, the segments being in part or all divided in the pipe-length direction to provide a variable-width segment comprising two segment halves that are moved relative to each other in the pipe-length direction to make the width of the segment in the pipe-length direction variable, the method comprising:
Dependencies are inferred from the claim text.