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1. 发明公开

EP0943417A4 METHOD OF LINING INNER SURFACE OF CONDUIT 有权
标题翻译：方法背心的内表面一行
公开(公告)号：EP0943417A4
公开(公告)日：2002-03-06
申请号：EP98945600
申请日：1998-10-05
申请人： TOKYO GAS CO LTD , OSAKA BOSUI KENSETSUSHA KK
发明人： HAYASHI MITSUTOSHI , KOMORI MITSUNORI , KOSEKI MASATO , MINAMI TOMOYUKI , MIZUKAMI SEIJI , BANRAI YUICHI , MIYAZAKI YASUO , KAMIDE AKIRA , TANIMURO HIROHISA , UCHIDA TAKESHI
IPC分类号： B29C53/08 , B29C63/34 , F16L55/165
CPC分类号： F16L55/1654 , B29C53/08 , B29C53/086 , B29C63/343
摘要： A method of lining the inner surface of a conduit, comprising placing on the site a roll of hard or semi-hard plastic pipe deformed from the original shape, i.e. a generally circular pipe to a flat pipe drawing out the thermally softened pipe from the roll toward the opening of a conduit to be lined therewith, folding in two to a shape like the letter U in front of the opening, wherein the U-folded pipe is immediately set fixedly by cooling it forcedly from the outer surface of the pipe whose shape is kept retained, put into the conduit in this shape-retained state, restored to its original shape by expanding the pipe by heat and pressure from the inner side thereof. The lining is facilitated, and the quality of lining is improved.

2. 发明专利

CA2274766A1 METHOD OF LINING CHANNELS 未知
公开(公告)号：CA2274766A1
公开(公告)日：1999-04-22
申请号：CA2274766
申请日：1998-10-05
申请人： TOKYO GAS CO LTD , OSAKA BOSUI KENSETSUSHA KK
发明人： MIYAZAKI YASUO , BANRAI YUICHI , KOSEKI MASATO , MINAMI TOMOYUKI , MIZUKAMI SEIJI , KAMIDE AKIRA , UCHIDA TAKESHI , TANIMURO HIROHISA , KOMORI MITSUNORI , HAYASHI MITSUTOSHI
IPC分类号： B29C53/08 , B29C63/34 , F16L55/165
摘要： A method of lining the inner surface of a conduit, comprising placing on the site a roll of hard or semi-hard plastic pipe deformed from the original shape, i.e. a generally circular pipe to a flat pipe drawing out the thermally softened pipe from the roll toward the opening of a conduit to be lined therewith, folding in two to a shape like the letter U in front of the opening, wherein the U-folded pipe is immediately set fixedly by cooling it forcedly from the outer surface of the pipe whose shape is kept retained, put into the conduit in this shape-retained state, restored to its original shape by expanding the pipe by heat and pressure from the inner side thereof. The lining is facilitated, and the quality of lining is improved.

3. 发明专利

DE69825139T2 未知
公开(公告)号：DE69825139T2
公开(公告)日：2005-08-11
申请号：DE69825139
申请日：1998-10-05
申请人： TOKYO GAS CO LTD , OSAKA BOSUI CONSTRUCTION CO
发明人： HAYASHI MITSUTOSHI , KOMORI MITSUNORI , KOSEKI MASATO , MINAMI TOMOYUKI , MIZUKAMI SEIJI , BANRAI YUICHI , MIYAZAKI YASUO , KAMIDE AKIRA , TANIMURO HIROHISA , UCHIDA TAKESHI
IPC分类号： B29C53/08 , B29C63/34 , F16L55/165 , A23J3/14
摘要： A method of lining a channel can be provided which includes the steps of: installing at a work site a roll having wound thereon a rigid or semirigid plastic pipe shaped initially in the form of an approximately round tube and deformed from the initial form to a flat tubular form, paying off the pipe as softened by heating from the roll installed at the work site toward an inlet of the channel to be lined, and folding the paid-off flat pipe in two to a U shape at a position between the roll and the channel inlet. The U-shaped pipe is hardened by forced cooling from outside immediately after the folding step while being restricted in shape, then inserted into the channel while being thus hardened and thereafter restored to the initial form by being inflated with heat and pressure applied from inside, whereby a lining of improved quality can be formed with an improved work efficiency.

4. 发明专利

DE69825139D1 未知
公开(公告)号：DE69825139D1
公开(公告)日：2004-08-26
申请号：DE69825139
申请日：1998-10-05
申请人： TOKYO GAS CO LTD , OSAKA BOSUI CONSTRUCTION CO
发明人： HAYASHI MITSUTOSHI , KOMORI MITSUNORI , KOSEKI MASATO , MINAMI TOMOYUKI , MIZUKAMI SEIJI , BANRAI YUICHI , MIYAZAKI YASUO , KAMIDE AKIRA , TANIMURO HIROHISA , UCHIDA TAKESHI
IPC分类号： B29C53/08 , B29C63/34 , F16L55/165 , A23J3/14
摘要： A method of lining a channel can be provided which includes the steps of: installing at a work site a roll having wound thereon a rigid or semirigid plastic pipe shaped initially in the form of an approximately round tube and deformed from the initial form to a flat tubular form, paying off the pipe as softened by heating from the roll installed at the work site toward an inlet of the channel to be lined, and folding the paid-off flat pipe in two to a U shape at a position between the roll and the channel inlet. The U-shaped pipe is hardened by forced cooling from outside immediately after the folding step while being restricted in shape, then inserted into the channel while being thus hardened and thereafter restored to the initial form by being inflated with heat and pressure applied from inside, whereby a lining of improved quality can be formed with an improved work efficiency.

5. 发明专利

JP2000248882A ROD GUIDE MECHANISM FOR NON-OPEN-CUT PIPE LAYING METHOD 失效
公开(公告)号：JP2000248882A
公开(公告)日：2000-09-12
申请号：JP5172599
申请日：1999-02-26
申请人： TOKYO GAS CO LTD , KANPAI CO LTD
发明人： KURASHINA MINORU , BANRAI YUICHI , ENOMOTO MORIKAZU , KATSUTA TSUTOMU , OMORI SHOJIRO , MIWA SHINJI
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To cause a rod to be forced into the ground to advance along the laying path of a pipe in a starting shaft in a non-open-cut pipe laying method. SOLUTION: In the non-open-cut pipe laying method, wherein after a rod 11 is forced into the ground so as to protrude from the wall surface of a starting shaft 10 formed on the forward end of the laying path of a pipe, a borehole is formed to bring the pipe into the ground again from a wall surface on the side of laying the pipe, a rod press base 22 is attached to a wall surface of the shaft 10, on which the pipe is laid, so as to be slidable with respect to the upper part of the rod 11 to be inserted to guide the rod 11 in the direction of the laying path of the pipe.

6. 发明专利

JP2000079472A AUTOMATIC WELDING MACHINE 失效
公开(公告)号：JP2000079472A
公开(公告)日：2000-03-21
申请号：JP24825198
申请日：1998-09-02
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUICHI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K9/10 , B23K9/12
摘要： PROBLEM TO BE SOLVED: To provide an automatic welding machine wherein the buckling of a welding wire is not generated within a roller guide torch unit even though such an operation as excessively feeding the welding wire is executed. SOLUTION: When a torch sensor 7 is outputted while a push button switch 2 is pushed, an output of an AND circuit 8 is turned on, and also an output of an off delay timer 9 is immediately turned on. Thus, a relay coil 10 is excited, its (b) contact 4 is opened, and a servomotor 5 is stopped. Therefore, a welding wire is fed no more, and the buckling of the welding wire is not generated within a roller guide torch unit. Even though the push button switch 2 is turned off and whereby the output of the AND circuit 8 is turned off, the relay contact 4 is kept open during a set time of the off delay timer 9. Therefore, the relay contact 4 is kept open during an inching work, and the servomotor 5 is not rotated.

7. 发明专利

JP2000284062A BURIED OBJECT-PROSPECTING METHOD 失效
公开(公告)号：JP2000284062A
公开(公告)日：2000-10-13
申请号：JP9374799
申请日：1999-03-31
申请人： TOKYO GAS CO LTD
发明人： KAWAGUCHI TAKAHIRO , KURASHINA MINORU , BANRAI YUICHI , FUKUSHIMA YUJI
IPC分类号： G01V3/12
摘要： PROBLEM TO BE SOLVED: To provide a method for easily detecting metallic and non-metallic buried objects without increasing working man-hours. SOLUTION: In a method for prospecting a buried object in a section where piping is laid, a first process where starting and arrival shafts 1 and 2 are provided at both the ends of the laying section, and a rotation rod 4 being delivered from a ground-installation-type propulsion machine 3 is used for bore a drilling hole, and a second process where, after the first process, a detector 10 for detecting a pipeline M being already laid near the drilling hole is inserted into the boring hole for moving. In the second process, an electromagnetic wave reaching the outside of a piping aperture to be laid is transmitted to an entire region in the peripheral direction of the drilling hole from the detector 10, thus prospecting the presence or absence of the buried pipeline according to a reflection state.

8. 发明专利

JP2000248893A PIPE LAYING BY NON-CUT AND COVER METHOD 失效
公开(公告)号：JP2000248893A
公开(公告)日：2000-09-12
申请号：JP5171999
申请日：1999-02-26
申请人： TOKYO GAS CO LTD , KANPAI CO LTD
发明人： KURASHINA MINORU , BANRAI YUICHI , ENOMOTO MORIKAZU , KATSUTA TSUTOMU , OMORI SHOJIRO , MIWA SHINJI
IPC分类号： E21D9/12 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a pipe laying method by non-cut and cover capable of laying large-diameter pipes with a small number of processes requiring no drive machines having a large output without causing upheaval of ground surface by discharged earth. SOLUTION: In a non-cut and cover pipe laying method in which the pipeline is pulled into a boring hole when pulling back a rotation rod 4 from an arrival vertical shaft to a starting vertical shaft after providing the starting vertical shaft and arrival vertical shaft 2 in a passage laying the pipeline and driving a boring hole by using the rotation rod 4, both a first process for driving a pilot hole by rotating and driving the drill head of a rotation rod 4 and a second process in which the drill head is removed at the side of the arrival vertical shaft 2, a large-diameter reamer 9' and a sheath pipe 11 for piping are connected to the tip of the rod 4 and the sheath pipe 11 is pulled in while pulling back the rod 4 by the drive machine and reaming the pilot hole are provided; and the sediment in the sheath pipe 11 is moved to the rear of the sheath pipe 11 by utilizing a fluid pressure of sediment entering the sheath pipe 11 from the side of reamer 9' in the second process and is discharged by the sheath pipe 11 exposed to the arrival vertical shaft 2.

9. 发明专利

JP2000117437A WELDING TORCH 失效
公开(公告)号：JP2000117437A
公开(公告)日：2000-04-25
申请号：JP31535498
申请日：1998-10-20
申请人： TOKYO GAS CO LTD
发明人： BANRAI YUICHI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K9/028 , B23K9/12 , B23K9/133
摘要： PROBLEM TO BE SOLVED: To provide a welding torch capable of absorbing an impact which a welding wire receives and preventing buckling when the welding wire is bumped against a stock to be welded. SOLUTION: A shaft 43 is arranged successively in a motor driving mechanism via a clutch mechanism 60 so that the right end side of the shaft 43 is extended to a guide housing side to fixedly support an inner roller 17 and the left end side of the same is extended to the innermost side of a cover 127. The clutch mechanism 60 is provided with a clutch gear 47 and a clutch disk 48. The clutch gear 47 is provided with a clutch sleeve 64, a spring 65 which is elastically provided in the inside of the clutch sleeve 64, and a projected body 66 which is attached to the tip end of the spring 65. The clutch disk 48 is formed into a flanged sleeve shape, and a cone shaped body 66 of each clutch unit 63 is formed in a disk part 48b.

10. 发明专利

JP2000117431A AUTOMATIC WELDING DEVICE FOR CIRCUMFERENCE OF TUBE 失效
公开(公告)号：JP2000117431A
公开(公告)日：2000-04-25
申请号：JP31535598
申请日：1998-10-20
申请人： TOKYO GAS CO LTD
发明人： BANRAI YUICHI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K37/053 , B23K9/028 , B23K9/12
摘要： PROBLEM TO BE SOLVED: To enable the automatic welding of the circumference of a tube even when the tube has a small diameter by this welding device having a simple construction by providing a moving mechanism moving a mounted welding head in the prescribed direction and a holding mechanism with the moving mechanism mounted, which holds the tube. SOLUTION: The outer periphery of an existing tube P1 is caught from both side directions and is held by a tube holding mechanism 2. While a welding head 1 travels in the peripheral direction of the tube, a welding wire 13 is supplied from a welding torch 11, and the full-circled welding of a welding groove W to a joint tube P2, is performed. By catching the outer periphery of the existing tube P1 from both sides and by holding it, the whole welding device is supported. Therefore, even if the tube has a small diameter, welding can be performed. An automatic welding device has preferably an X drive mechanism by which a welding head is moved by a moving mechanism along a weld line extending in the circumferential X direction of the tube, a Z drive mechanism moving the X drive mechanism in the Z direction out of two directions Y and Z on a surface crossing the weld line and a Y drive mechanism moving the Z drive mechanism in the Y direction. Consequently, a position adjustment is easily performed.

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