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141. 发明专利

JPH03243328A METHOD OF LINING CONSTRUCTION OF EXISTING PIPE 失效
公开(公告)号：JPH03243328A
公开(公告)日：1991-10-30
申请号：JP4040590
申请日：1990-02-20
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI , HIRAYAMA KOZO
IPC分类号： F16L1/00 , B29C63/34
摘要： PURPOSE:To execute the inner lining of an existing pipe by a method wherein spiral pipes are manufactured while interposing band materials, the spiral pipes are inserted successively into the existing pipe, the front ends of the spiral pipes are fixed to the existing pipe, the band materials are detached from the spiral pipes, ribs for sliding are brought into contact mutually under a crossed state, and the diameters of the spiral pipes are expanded. CONSTITUTION:A spiral pipe 10' is inserted directly into a sewer pipe 81 from a pipe making machine 20, and propelled while being turned. The front end of the spiral pipe 10' is fixed at the end section of the sewer pipe 81. The pipe making machine 20 is driven again, a beltlike body 10 is fed to the pipe making machine 20, and a band material 30 is detached successively from the side where the spiral pipe 10' is fixed. The state of the contact bonding of a stepped falling section 14 and the side edge section of a substrate 12 in the stepped falling section 14 is released, and ribs 17 and 18 for each sliding are brought to the state in which the ribs are easily slid mutually. The inserting section 13b of a fitting projection 13 inserted into a fitting recessed strip 15 is brought simultaneously to the state in which it can be slid smoothly in the fitting recessed strip 15. The diameter of the spiral pipe 10' is expanded in succession from the fastened front end side, and the spiral pipe 10' is fast stuck onto the inner circumferential surface of the sewer pipe 81.

142. 发明专利

JPH03213785A LINING METHOD FOR ALREADY CONSTRUCTED PIPE 失效
公开(公告)号：JPH03213785A
公开(公告)日：1991-09-19
申请号：JP471890
申请日：1990-01-12
申请人： SEKISUI CHEMICAL CO LTD
发明人： KITAYAMA YASUSHI , KITAHASHI NAOKI
IPC分类号： F16L1/00 , B29C63/34
摘要： PURPOSE:To smoothly carry out the diameter spreading work for a spiral tube by separating a wire material from the spiral tube on the basis of the information of the inside diameter of the spread diameter part of the spiral tube which is separated by a prescribed distance from a wire material separation position on the spiral tube. CONSTITUTION:A spiral tube 10' is attached in nearly closely on the inner peripheral surface of a sewer 81 by spreading the diameter. In this case, in order to surely separate a strip-shaped wire material 30 from the spiral tube 10', a wire material separating tool 40 for pulling the strip-shaped wire material 30 in the separation direction of the strip-shaped wire material 30 is used. When a detector 42 detects that the inside diameter of the spiral tube 10' becomes a prescribed proper value, a controller 46 sets the wiring speed of a wiring device 50 for the wire material 30 to a proper speed. Accordingly, the diameter spreading work for the spiral tube is smoothly carried out, and the working efficiency is improved drastically.

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