发明名称 |
METHOD FOR LAYING COMMUNICATION CABLE INTO UNDERGROUND CONDUIT AND PIPE-INSIDE WORK DEVICE FOR LAYING |
摘要 |
PROBLEM TO BE SOLVED: To provide a method for laying a communication cable into an underground conduit and a pipe-inside laying work device capable of exactly arranging a plurality of sag-preventing members at a prescribed position. SOLUTION: The method for laying the communication cable is configured such that: the communication cables 50, 51 are arranged at an upper side in a main pipe of the underground conduit from which at least one or more branches are branched to the main pipe 31; the sag-preventing members 80 are reduced in diameter by a diameter-reducing means 15 so as to be movable in the main pipe 31 and are fixed to the pipe-inside work device; the pipe-inside work device 1 is moved to the prescribed position in the main pipe 31 and turned so that the communication cables are arranged between a recessed part and the inside surface of the main pipe; the diameter-reducing means 15 is released; the sag-preventing members 80 are arranged in the main pipe 31; and the communication cables 50, 51 are held. |
申请公布号 |
JP2002300709(A) |
申请公布日期 |
2002.10.11 |
申请号 |
JP20010100509 |
申请日期 |
2001.03.30 |
申请人 |
SEDO ICHIRO;SANKI ENG CO LTD;ASHIMORI IND CO LTD;ASHIMORI ENGINEERING CO LTD |
发明人 |
SEDO ICHIRO;TSUCHIYA FUMIAKI;YAGI ISABURO;ASO KOJI |
分类号 |
G02B6/46;B62D57/024;F16L1/00;H02G1/06;H02G1/08;H02G9/06 |
主分类号 |
G02B6/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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