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2. 发明专利

JPH10332044A LAYING METHOD OF PIPE LINE, PIPE LINE SUPPORTER AND TWIST CORRECTING DEVICE 失效
公开(公告)号：JPH10332044A
公开(公告)日：1998-12-15
申请号：JP15581997
申请日：1997-05-29
申请人： MATERIKA KK , MITSUI CONSTR
发明人： TSUCHIYA KOICHIRO , KAWAAI AKIRA
IPC分类号： F16L3/22 , F16L1/00 , F16L3/223
摘要： PROBLEM TO BE SOLVED: To make laying possible of a pipe line in a laid pipe by eliminating labor without giving a flaw to the laid pipe. SOLUTION: In this laying method of a pipe line, a plurality of pipe line supporters 15, having a frame 16 and a slide means 18 provided in the frame 16 to support it to slide movably in an extending direction thereof on an inner surface 7b of a laid pipe 7 and turnably in a peripheral direction thereof, are arranged in the laid pipe 7, also by these pipe line supporters 15, a pipe line 9 is supported in an extending direction of the laid pipe 7, a plurality of the pipe line supporters 15 are slid to be moved. In this way, the pipe line 9 supported by these pipe line supporters 15 is moved to a prescribed laying position to be arranged, also a twist in a peripheral direction of the laid pipe 7 generated in the pipe line 9 is corrected in a manner wherein one pipe line supporter 15 is rotated in a peripheral direction, the pipe line 9 supported by the pipe line supporter 15 is twist rotated in an opposite direction to a twist direction.

3. 发明专利

JP2001349484A PIPE COUPLER 失效
公开(公告)号：JP2001349484A
公开(公告)日：2001-12-21
申请号：JP2000172841
申请日：2000-06-09
申请人： MATERIKA KK
发明人： MAEDA NORITOSHI , YOSHIDA ISAMU
IPC分类号： E21D9/06 , F16B7/04 , F16B7/20 , F16L27/08
摘要： PROBLEM TO BE SOLVED: To provide a pipe coupler 10 capable of preventing the separation of unit pipes 70 without impairing the flexibility of a connecting part of the unit pipes 70 in a case of laying a pipe of small diameter 60 formed by connecting a number of unit pipes 70 inside of a pipe 50 of a large diameter. SOLUTION: This pipe coupler 10 has a fixed part 20 to be fixed to a cylindrical part 71 of one unit pipe 70, a mounting part 30 movably mounted on the cylindrical part 71 of the other unit pipe 70, and a connecting part 40 for connecting the fixed part 20 and the mounting part 30. An end part at a side opposite to a socket part 72, of the cylindrical part 71 of one unit pipe 70 keeps a state that it is inserted into the socket part 72 of the other unit pipe 70 with a clearance with respect to a depth part 73 of the socket part 72 of the other unit pipe 70, when the mounting part 30 is kept into contact with the socket part 72 of one unit pipe 70.

4. 发明专利

JPH10331585A METHOD FOR CONSTRUCTING UNDERGROUND PIPELINE WITH ENLARGED PART 失效
公开(公告)号：JPH10331585A
公开(公告)日：1998-12-15
申请号：JP15582097
申请日：1997-05-29
申请人： MATERIKA KK , MITSUI CONSTR
发明人： TSUCHIYA KOICHIRO , UMEZONO TERUHIKO , HONMA AKIRA
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To construct an underground pipeline with an enlarged part without much labor by making its construction work affect traffic as little as possible, eliminating the need to transfer other buried objects, and enhancing operating efficiency as high as possible. SOLUTION: A propulsion pipe unit in which a propulsion pipe 50 and an enlarged propulsion pipe 51 are arranged telescopically is propelled into the ground 1 by a pipeline length D1 as another new propulsion pipe unit is added to its rear end, and the enlarged laid pipe 5b of an underground pipeline is constructed by the plurality of enlarged propulsion pipes 51 connected together between the propulsion pipe units. As other new propulsion pipes 50 are added to the rear ends of the plurality of connected propulsion pipes 50 of the propulsion pipe units extended, the propulsion pipes 50 are propelled into the ground 1 in such a way as to pass through the enlarged laid pipe 5b, to construct the laid pipe of the underground pipeline. Next, of the plurality of propulsion pipes 50, those located within the enlarged laid pipe 5b are dismantled.

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