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1. 发明专利

JPH0953778A JOINT FOR FLEXIBLE METAL PIPE 失效
公开(公告)号：JPH0953778A
公开(公告)日：1997-02-25
申请号：JP21057695
申请日：1995-08-18
申请人： SANKO GAS SEIKI KK , TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： F16L33/18 , F16L33/26
摘要： PROBLEM TO BE SOLVED: To provide a joint for a flexible metal pipe for which a safety measure against nailing is taken by reliably deteting leakage by a nailing error at inspection time. SOLUTION: In a joint which has at least a joint main body 1 and a nut 3 and connects a metallic flexible pipe 7 covered with a synthetic resin layer 71 to an outside surface of a metallic corrugated pipe 70, the joint for a metallic flexible pipe has packing 4 having a one-way passing function of allowing passing of gas to outside from inside the joint into this recessed groove but of checking passing into the joint from outside by forming an annular recessed groove 33 on a nut 3.

2. 发明专利

JPH09166256A JOINT FOR METAL FLEXIBLE PIPE 失效
公开(公告)号：JPH09166256A
公开(公告)日：1997-06-24
申请号：JP21363096
申请日：1996-08-13
申请人： SANKO GAS SEIKI KK , TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： F16L33/00 , F16L33/26 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To provide a joint for a metal flexible pipe taking a nailing safety measure, by surely detecting a leak, due to wrong nailing, at inspection time. SOLUTION: In a joint having at least a joint main unit 1 and a nut 3 and for connecting a metal flexible pipe 7 coating an external surface of a metal corrugated pipe 70 with a synthetic resin layer 71, a ventilating path connecting a clearance between the metal corrugated pipe 70 and the synthetic resin layer 71 to the joint outside, for instance, a through hole 17 is provided in the joint main unit 1 and/or the nut 3, this through hole 17 is closed by a selective permeation member 5 which permits permeation of gas from inside the joint to the outside but impedes permeation and infiltration of a solid (dust or the like) and a liquid (water, dew, etc.) from the outside to inside the joint.

3. 发明专利

JP2005321103A Coupling for metal flexible pipe 有权
标题翻译：金属柔性管接头
公开(公告)号：JP2005321103A
公开(公告)日：2005-11-17
申请号：JP2005208283
申请日：2005-07-19
申请人： Hitachi Metals Ltd , Sanko Gas Seiki Kk , Tokyo Gas Co Ltd , サンコー瓦斯精機株式会社 , 日立金属株式会社 , 東京瓦斯株式会社
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： F16L33/26
摘要： PROBLEM TO BE SOLVED: To provide a coupling for a metal flexible pipe, capable of securely detecting a leakage caused by wrong nailing at inspection time and taking a nailing safety measure. SOLUTION: In this coupling having a coupling main body and a nut and for connecting the metal flexible pipe in which an external face of a metal corrugated pipe is coated with a synthetic resin layer, a passage through which gas passes and which communicates a gap for passing of gas between the metal corrugated pipe and the synthetic resin layer with outside of the coupling is provided in the coupling main body and/or the nut. The passage through which gas passes is closed by a selective permeation member for allowing permeation of gas but preventing permeation of solid and liquid. The selective permeation member is applied to water and oil repelling treatment. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于金属柔性管的联接器，能够可靠地检测在检查时由错误的钉子引起的泄漏并采取打钉安全措施。解决方案：在具有联接器主体和螺母的联接器中，用于连接金属柔性管，其中金属波纹管的外表面涂覆有合成树脂层，气体通过的通道，并且连通在联接器主体和/或螺母中设置有用于在金属波纹管和合成树脂层之间通过耦合件外部的气体间隙。气体通过的通道被选择性渗透构件封闭，以允许气体渗透，但防止固体和液体渗透。选择渗透构件用于防水和防油处理。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2003185075A LEAKAGE DETECTING METHOD 审中-公开
公开(公告)号：JP2003185075A
公开(公告)日：2003-07-03
申请号：JP2002363142
申请日：2002-12-13
申请人： SANKO GAS SEIKI KK , TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： G01M3/04 , F16L33/26 , F16L55/07 , G01M3/12
摘要： PROBLEM TO BE SOLVED: To provide a leakage detecting method capable of surely detecting leakage at the time of a leakage test by positively discharging to the outside a leak due to a nailing mistake. SOLUTION: In the leakage detecting method, a joint for a metal flexible pipe comprising a joint body 1 and a nut 3 to detect gas leaked from the metal flexible pipe in which the outer surface of a metal corrugated pipe 70 passing gas is coated with a synthetic resin layer 71. Gas leaking from the metal corrugated pipe reaches the joint for the metal flexible pipe through the clearance between the metal corrugated pipe and the synthetic resin layer, and passes through a selective permeation member 5 which allows gas to pass through and does not allow liquid to pass through. Thus, the leakage of gas can be detected by positively discharging the gas to the outside. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003176891A COUPLING FOR METAL FLEXIBLE PIPE 审中-公开
公开(公告)号：JP2003176891A
公开(公告)日：2003-06-27
申请号：JP2002363141
申请日：2002-12-13
申请人： SANKO GAS SEIKI KK , TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： F16L33/26
摘要： PROBLEM TO BE SOLVED: To provide a coupling for a metal flexible pipe with a safety measure capable of certainly detecting a leakage upon inspection of the leakage by positively discharging the leakage caused by an error of nail hitting to the outside. SOLUTION: The coupling for a metal flexible pipe having a coupling body 1 and a nut 3 is connected to an end of the metal flexible pipe 7 in which a synthetic resin layer 71 is covered on an outer surface of the metal corrugated pipe 70 for flowing a gas. A selectively permeating member 5, through which a gas is passed but a liquid is not passed, for permeating the gas leaked from the metal corrugated pipe and arriving at the coupling body and/or the nut so as to discharge it to the outside is provided on the coupling body and/or the nut. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2005321102A Coupling for metal flexible pipe 审中-公开
标题翻译：金属柔性管接头
公开(公告)号：JP2005321102A
公开(公告)日：2005-11-17
申请号：JP2005208282
申请日：2005-07-19
申请人： Hitachi Metals Ltd , Sanko Gas Seiki Kk , Tokyo Gas Co Ltd , サンコー瓦斯精機株式会社 , 日立金属株式会社 , 東京瓦斯株式会社
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： F16L33/26 , F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To provide a coupling for a metal flexible pipe, capable of securely detecting a leakage caused by wrong nailing at inspection time and taking a nailing safety measure. SOLUTION: In this coupling having a coupling main body and a nut and for connecting the metal flexible pipe in which an external face of a metal corrugated pipe is coated with a synthetic resin layer, a passage through which gas passes and which communicates a gap for passing of gas between the metal corrugated pipe and the synthetic resin layer with outside of the coupling is provided in the coupling main body and/or the nut. The passage through which gas passes is closed by a selective permeation member for allowing permeation of gas but preventing permeation of solid and liquid, in the state where the gas permeability of the selective permeation member is adjusted. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于金属柔性管的联接器，能够可靠地检测在检查时由错误的钉子引起的泄漏并采取打钉安全措施。解决方案：在具有联接器主体和螺母的联接器中，用于连接金属柔性管，其中金属波纹管的外表面涂覆有合成树脂层，气体通过的通道，并且连通在联接器主体和/或螺母中设置有用于在金属波纹管和合成树脂层之间通过耦合件外部的气体间隙。气体通过的通道在选择渗透构件的气体渗透性被调节的状态下被选择渗透构件封闭，以允许气体渗透，但防止固体和液体渗透。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JPH10132149A FLEXIBLE PIPING FOR GAS AND METHOD FOR INSPECTING LEAKAGE FOR SAME 失效
公开(公告)号：JPH10132149A
公开(公告)日：1998-05-22
申请号：JP28419596
申请日：1996-10-25
申请人： SANKO GAS SEIKI KK , TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , MINAMI TOMOYUKI , YOSHII TAKAO , UENO TOSHIYUKI
IPC分类号： G01M3/04 , F16L9/06 , F16L11/12 , F16L33/00 , F16L33/28 , F17D5/02
摘要： PROBLEM TO BE SOLVED: To provide a flexible piping for gas, taking a safety precaution against nailing, and a method for inspecting leakage of it, by reliably detecting leakage to be generated caused by a mistake of nailing in the inspection. SOLUTION: A flexible piping is provided with a flexible pipe formed of a corrugated pipe and a synthetic resin layer coated on the outer periphery of it, and joint parts for connecting the flexible pipe. A recessed groove-shape first vent passage communicated in the axial direction and a second vent passage 17 such as a through hole provided in the joint part for communicating the first vent passage with the outside of the joint part are provided between the corrugate pipe 70 and the synthetic resin layer 71. The through hole allows gas to be transmitted from the inside of the joint to the outside, however, it is desirable that the transmission and the invasion of solid (such as dust) and liquid (such as water or dew) are blocked by a selector transmission member 5.

8. 发明专利

JPH0953765A FLEXIBLE METAL PIPE 失效
公开(公告)号：JPH0953765A
公开(公告)日：1997-02-25
申请号：JP21057495
申请日：1995-08-18
申请人： SANKO GAS SEIKI KK , TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： FUJIYOSHI MINORU , ANAMIZU TAKASHI , SATO FUMITAKA , OKI KATSUHIRO , UENO TOSHIYUKI
IPC分类号： F16L9/14 , B32B1/08 , B32B15/08
摘要： PROBLEM TO BE SOLVED: To provide a flexible metal pipe taken nailing safety measure by surely detecting leakage caused by nailing miss at the time of leakage inspection. SOLUTION: In a flexible metal pipe 1 covered with a synthetic resin layer 3 on the outer surface of a metal corgate pipe 2, at least one of a penetrating hole 4 is arranged on a resin covered layer 3, and it is sealed by a selecting transmitted member 5 for allowing transmission of gas from an inside (to say concretely, space between the corgate pipe 2 and a synthetic resin layer 3) to an outside, but blocking transmission of solid (dust and the like) and liquid (water, fog, and the like) from an outside into an inside.

9. 发明专利

JPH04145293A RESIN TUBE TAKEOUT COUPLING 失效
公开(公告)号：JPH04145293A
公开(公告)日：1992-05-19
申请号：JP27022490
申请日：1990-10-08
申请人： TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： ANAMIZU TAKASHI , OKI KATSUHIRO , MIZUTANI SHIGERU
IPC分类号： F16L47/00
摘要： PURPOSE:To secure such a resin tube takeout coupling that is easy to manufacture and of sure sealability by enlarging the diameter of a stiffener fitted in the one end side inner surface of a resin short tube, and locking this short tube to a coupling body. CONSTITUTION:A left end side of a polyethylene short tube 3 is fitted in the inner surface of a groove 1b formed on an inner surface at the right end side of a coupling body 1, while a packing 6 is fitted in an intermediate part outer surface of the polyethylene short tube 3, and an outer surface of the packing 6 contacts the right end inner surface of the coupling body 1 and an inner surface of a cylindrical part 2b of a resin covered layer 2. A stiffener 7 with a flange projected outward to the cylindrical left end is fitted in a left end inner surface of the short tube 3, and this stiffener 7 is extended of its diameter larger than the original form, and in the extended state intact, the polyethylene short tube 3 is clamped to the coupling body 1. Since this short tube 3 is bitten into the groove 1b of the coupling body 1, it shows its pull-out inhibiting force, and the packing 6 prevents any leak of internal fluid and, what is more, it prevents any external fluid from penetrating, thus it serves external anticorrosion.

10. 发明专利

JPH08178150A UNIVERSAL JOINT 失效
公开(公告)号：JPH08178150A
公开(公告)日：1996-07-12
申请号：JP32109894
申请日：1994-12-26
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： SAITO MORIO , OKI KATSUHIRO , NOZAKI HIDEO
IPC分类号： F16L27/06 , F16L27/12
摘要： PURPOSE: To prevent the occurrence of serious leakage during the occurrence of a fire and to provide reliable sealing ability in an ordinary working state. CONSTITUTION: A joint sleeve 20 is oscillatorily coupled to a coupling body 10 in a seal state through compression of seal packings 31 and 32. Even when the seal packings 31 and 32 are burnt out during the occurrence of a fire, since a thermal expansion packing 40 mounted in a recessed groove 15 is expanded to embed the outer surface of the protrusion spherical surface 21 of the joint sleeve 20, serious leakage does not occur. Further, since the thermal expansion packing 40 presses the maximum diameter part on a central axis of the protrusion spherical surface 21 toward the central side is moved to one of the right and the left on an axis to prevent the increase of the expansion space of the thermal expansion packing 40, and fire resisting performance by the thermal expansion packing 40 is ensured. This constitution ensures sealing ability of an oscillating coupling part between the coupling body 10 and the joint sleeve 20, and prevents leakage of fluid, such as city gas, flowing through the coupling.

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