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1. 发明专利

JP2010053975A Corrugated pipe joint 有权
标题翻译：腐蚀管接头
公开(公告)号：JP2010053975A
公开(公告)日：2010-03-11
申请号：JP2008220336
申请日：2008-08-28
申请人： Hitachi Metals Ltd , Sankoo:Kk , Tokyo Gas Co Ltd , 日立金属株式会社 , 東京瓦斯株式会社 , 株式会社サンコー
发明人： ISHIBE FUMIKAZU , ITANI TAKAAKI , ARAKI SATORU , HAMAGUCHI KANKI , MINAMI TOMOYUKI , SATO FUMITAKA , UCHIUMI YOICHI , FUJINAWA YASUSHI , KOIDE TOSHIYUKI
IPC分类号： F16L37/12 , F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To provide a corrugate pipe joint ensuring connection of a corrugated pipe and a pipe joint and facilitating disassembly and recycle. SOLUTION: This corrugated pipe joint includes a joint body 10 in which a corrugated pipe T is inserted, a spring pack 70 retaining an elastic member 71 in an inner hole 16 of the joint body 10 from a deep side in sequence under a compressed condition, a seal member 40 slidably installed in the inner hole 16, a retainer 50 including a claw part 52 engaging with the corrugated pipe T and engaging with the corrugated pipe T by release of the elastic member 71 from the compressed condition, and a nut member 20 engaged with the joint body 10. The joint body 10 includes a locking groove 18a and an avoidance groove 18b lying in a row with the same. An outer circumference groove 25 is formed at an outer diameter side of the nut member 20. A stop ring 61 is disposed over the locking groove 18a and the outer circumference groove 25, and a ring for disassembly 63 is provided between a large diameter part 21 of the nut member 20 and an end part of the joint body 10. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供波纹管接头，确保波纹管和管接头的连接，便于拆卸和再循环。解决方案：该波纹管接头包括其中插入有波纹管T的接头体10，弹性部件70，弹性部件70从接合体10的内孔16中依次在下侧保持弹性部件71 压缩状态，可滑动地安装在内孔16中的密封构件40，保持器50，其包括与波纹管T接合的爪部52，并且通过从压缩状态释放弹性构件71与波纹管T接合，螺母构件20与接头体10接合。接头体10包括锁定槽18a和与其成行的回避槽18b。在螺母构件20的外径侧形成有外周凹槽25.止动环61设置在锁定槽18a和外周凹槽25之上，并且在大直径部21之间设置有用于拆卸的环63 螺母构件20和接头体10的端部。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2008256108A Pipe joint and overvoltage protection method for pipe 有权
标题翻译：管道接头和过滤保护方法
公开(公告)号：JP2008256108A
公开(公告)日：2008-10-23
申请号：JP2007099329
申请日：2007-04-05
申请人： Hitachi Metals Ltd , Tokyo Gas Co Ltd , 日立金属株式会社 , 東京瓦斯株式会社
发明人： FUJIYOSHI MINORU , MORI MASAHIRO , SATO FUMITAKA , HAMAGUCHI KANKI
IPC分类号： F16L33/26 , F16L25/00
摘要： PROBLEM TO BE SOLVED: To provide a pipe joint capable of facilitating pipe construction while ensuring conductivity from one pipe to the other pipe to be connected with a simple structure. SOLUTION: The pipe joint 1 is used for connecting a flexible pipe A and includes a joint body 26 and a conductive member 20. The flexible pipe A has a metal layer A3 on its outer peripheral surface. The joint body 26 is electrically conductive and has a pipe inserting hole 24 and a pipe insertion hole 28 which serve as an inner hole into which an end of the flexible pipe A is inserted. The conductive member 20 is arranged to surround the outer circumference of the flexible pipe A inserted in the inner hole of the joint body 26 so as to conductively connect the metal layer A3 of the flexible pipe A and the joint body 26 to each other. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够简化管道结构的管接头，同时确保从一个管道到另一个管道的导电性以简单的结构连接。解决方案：管接头1用于连接柔性管A，并且包括接头本体26和导电部件20.柔性管A在其外周面上具有金属层A3。接头体26是导电的，并且具有管插入孔24和管插入孔28，其用作插入柔性管A的端部的内孔。导电构件20被布置成围绕插入接头体26的内孔中的柔性管A的外周，以将柔性管A的金属层A3和接头本体26导电地连接。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2004205485A Piping system in periphery of gas meter 审中-公开
公开(公告)号：JP2004205485A
公开(公告)日：2004-07-22
申请号：JP2003148156
申请日：2003-05-26
申请人： Hitachi Metals Ltd , Tokyo Gas Co Ltd , 日立金属株式会社 , 東京瓦斯株式会社
发明人： MINAMI TOMOYUKI , SATO FUMITAKA , NOZAKI HIDEO
IPC分类号： G01F3/22 , G01F1/00 , G01F15/18
摘要： PROBLEM TO BE SOLVED: To reduce the number of piping members and a screw-in frequency around a gas meter.
SOLUTION: In this piping system in the periphery of the gas meter, a gas cock 13 and a header 15 are attached to a upper end part of a gas meter inlet pipe 2 and a gas meter outlet pipe 3, an opening and closing handle 13A is attached to an upper part in a meter inlet pipe 2 side, a connection inlet 13B to the meter inlet pipe 2 is provided in its lower part, a connection outlet 13C is formed horizontally, and the gas cock 13 for a main cock assembled with a cock 13D is attached in its inside. A branch port 15A or a pressure inspection port 15C is provided in an upper part in a meter outlet pipe 3 side, a connection outlet 15B to the meter outlet pipe 3 is formed in a lower face, the header 15 is attached to have a connection inlet 15D horizontally or the pressure inspection port 15C in parallel, a flow-in side joint 14 and a nut 8 are combined in the connection outlet 13C, a flow-out side joint 16 and a nut 9 are combined in the connection inlet 15D, and gas meter bases 10, 11 are engaged therewith to attach the gas meter.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2000146060A SEAL PACKING FOR CORRUGATED PIPE 失效
公开(公告)号：JP2000146060A
公开(公告)日：2000-05-26
申请号：JP32303198
申请日：1998-11-13
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： SATO FUMITAKA , OKUBO ATSUSHI , NOZAKI HIDEO
IPC分类号： F16L21/02 , F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To maintain a stable seal condition over a long period between a corrugated pipe and a cylinder member, by providing an annular part, having a shoulder contact surface abutting to both side protruded shoulder surfaces in an external peripheral wave mountain recessed part of the corrugated pipe and an outer surface abutting to an internal peripheral surface of the cylinder member, and a connection part connecting these mating annular parts. SOLUTION: A seal packing 10 for a corrugated pipe, mounted between a cylinder member and a corrugated pipe, is provided with an annular part 14 having a shoulder contact surface 13 abutting to both shoulder parts in a wave mountain protruded part of the corrugated pipe, the these mating annular parts 14 are connected to each other in a connection part 15. When the seal packing 10 in a condition mounted in the corrugated pipe is inserted in a cylinder member internal peripheral surface, an outer surface of the seal packing 10 is compressed by abutting to the internal peripheral surface of the cylinder member. In this way, the packing 10, by elastic restoration force due to proper elastic deformation, gives compressive force to the internal peripheral surface of the cylinder member and both the shoulder parts in the wave mountain protruded part of the corrugated pipe, and stable seal performance is obtained by ensuring a life of the seal packing 10 over a long period.

5. 发明专利

JPH09303640A ELECTRICAL INSULATING JOINT FOR FLEXIBLE TUBE 失效
公开(公告)号：JPH09303640A
公开(公告)日：1997-11-28
申请号：JP12291196
申请日：1996-05-17
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： TAKEZAWA MASAAKI , ANAMIZU TAKASHI , MINAMI TOMOYUKI , SATO FUMITAKA
IPC分类号： F16L19/02 , F16L25/02 , F16L33/26
摘要： PROBLEM TO BE SOLVED: To impart electrical insulating properties to a joint for a flexible tube. SOLUTION: A joint comprises a metal joint body 1; a composite sleeve composed of a metal piece contacting at its one end with a projection coming into a valley of a flexible tube 8 and at its other end with a nut 3 which metal piece is integrally molded with a resin cylindrical body having a claw engaging with a groove 32 in the nut 3; and the metal nut 3 which engages with the claw of the composite sleeve and has the groove 32 for holding the projection about an annular recess 14, a press face 33 to contact with a metal contact face 24 of the composite sleeve and an external thread 31 helically engaging with an internal thread 15. An insulating ring 5 coated with electrical insulating material is interposed between the metal contact face 24 and the press face 33, the composite sleeve is coated with electrical insulating material to form an insulating composite sleeve 2, and a step face 12 in the joint body 1 is fitted with an electrical insulating gasket 4.

6. 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.

7. 发明专利

JPH0932985A COUPLING TO INTERCONNECT CORRUGATED PIPES 失效
公开(公告)号：JPH0932985A
公开(公告)日：1997-02-07
申请号：JP18133495
申请日：1995-07-18
申请人： HITACHI METALS LTD , SANKO GAS SEIKI KK , TOKYO GAS CO LTD
发明人： FUJIYOSHI MINORU , HASEGAWA MICHIO , SHIKAMATA SHINICHI , ANAMIZU TAKASHI , SAITOU MASAO , SATO FUMITAKA
IPC分类号： F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To provide a coupling having a function to be connected with high sealing ability without a labor by inserting a corrugated pipe in a preassembled coupling and thereafter slightly further fastening a nut and besides detect it at a current time whether the corrugated pipe is correctly inserted. SOLUTION: A coupling to interconnect corrugated pipes comprises a coupling body 1; a sleeve 2 to hold the end of a corrugated pipe 4; and a nut 3 screwed in the coupling body 1. In which case, the coupling body 1 has a shoulder part 14 formed at the inside and having an airtight surface, an inner surface taper surface adjoining the shoulder part 14, and an annular recessed groove adjoining the taper surface. The sleeve 2 has a protrusion formed from an end part toward the internal part in a radial direction, and the protrusion enters the root of the flexible corrugated pipe 4 through resilient pivot movement. Further, the nut 3 has a claw, holding the outer surface of the protrusion of the sleeve 2 in a place corresponding to the annular recessed groove, a press surface pressed against the sleeve 2, and a fit-in groove in which the outer peripheral surface of the rear part of the sleeve 2 is fitted.

8. 发明专利

JPH08233177A SLEEVE FOR CORRUGATE PIPE CONNECTING JOINT 失效
公开(公告)号：JPH08233177A
公开(公告)日：1996-09-10
申请号：JP808096
申请日：1996-01-22
申请人： SANKO GAS SEIKI KK , HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： FUJIYOSHI MINORU , HASEGAWA MICHIO , SHIKAMATA SHINICHI , ANAMIZU TAKASHI , SAITOU MASAO , SATO FUMITAKA
IPC分类号： F16L33/00 , F16L33/28
摘要： PURPOSE: To easily engage a pipe with a sleeve, and prevent them from being simply separated by letting each projection which is so disposed that a slit is formed in front of the sleeve when the corrugate pipe is pushed in, and is widened so as to be opened, rise across the crests of the corrugate pipe, and subsequently letting aforesaid each projection which is contracted, go in the troughs of the corrugate pipe. CONSTITUTION: A sleeve 2 is integrally formed out of a ring shaped synthetic resin substrate, and of a metallic segment 26 via slits. When a corrugate pipe is pushed in the sleeve, since the front section of the sleeve is split by its slits, and a resinous body is elastic, each projection 23 is elastically widened so as to be opened around the ring section 21 of a rear section as a fulcrum along the troughs of the corrugate pipe, and each projection 23 is thereby opened, it rises across the crests of the corrugate pipe, and subsequently each projection 23 goes in the first trough while being contracted so as to be locked therein. Thus as mentioned above, the insertion of the corrugate pipe into a joint main body allows each projection to be easily locked in the trough section of the corrugate pipe, and subsequently allows the corrugate pipe to be hardly slipped out, so that correct connection is thereby made at all times.

9. 发明专利

JPH07103379A FLEXIBLE PIPE JOINT 失效
公开(公告)号：JPH07103379A
公开(公告)日：1995-04-18
申请号：JP24664093
申请日：1993-10-01
申请人： TOKYO GAS CO LTD , HITACHI METALS LTD , SANKO GAS SEIKI KK
发明人： FUJIYOSHI MINORU , UENO TOSHIYUKI , SHIKAMATA SHINICHI , ANAMIZU TAKASHI , SAITO MORIO , SATO FUMITAKA
IPC分类号： F16L33/00 , F16L33/28
摘要： PURPOSE:To improve connecting workability by inserting a flexible pipe into a joint main body so that the cylindrical portion of a packing is compressed via a stopper and the axially right angle portion of the packing is compressed at the end of the flexible pipe locked to the stopper when a nut is fastened. CONSTITUTION:During connection, a joint main body 10 is partially threaded to a nut 20 in such a state that a seal packing 30 and a stopper 40 are mounted to a pipe socket 14 in the joint main body 10. The flexible pipe 50 is put through the rear end of the nut 20, inserted into the packing 30 while pushing and enlarging the inside face of the stopper 40 at the end 51 of the pipe 50 and put in contact with the axially right angle portion 32 of the packing. At this time, the stopper 40 is fitted and locked to the outer periphery of the pipe 50 by the elastic resilience of the packing 30 to allow the stopping of the pipe 50. When the nut 20 is turned and fastened to the fitting main body 10 in such a state, the stopper 40 is shrinked at the tapered inside face 22 of the nut 20 and the cylindrical portion of the packing 30 is compressed to seal the outer periphery of the pipe 50.

10. 发明专利

JPH01203791A INSULATING PIPE JOINT FOR CONNECTING CORRUGATED PIPE 失效
公开(公告)号：JPH01203791A
公开(公告)日：1989-08-16
申请号：JP2723088
申请日：1988-02-08
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： AKIYAMA SABURO , TOKU TAKASHI , TSUTSUMI CHIAKI , TAKADA HIDEMASA , SHIBAYAMA KOKICHI , SATO FUMITAKA
IPC分类号： F16L25/02
摘要： PURPOSE:To contrive to provide electric insulation properties by forming the title joint from a sleeve engaged with a corrugated pipe, box nut, and a joint body and installing each electric insulating member onto the outer surface and rear part side wall of the sleeve and installing a packing. CONSTITUTION:A joint for a corrugated pipe 4 consists of a sleeve 3 installed onto the outer surface of the corrugated pipe 4, box nut 2 having a female screw for the engagement with the sleeve 3, and a joint body 1 having a male screw which is screwed with the box nut 2 and the female screw, hole 17 and a communication hole 16. Each electric insulating member 6 is installed onto the outer surface of the sleeve 3 and a rear part side wall 39, and a packing 5 which possesses the electric insulating performance and sealing performance is installed onto the pipe receiving wall part 18 of the joint body 1. Therefore, connection can be carried out easily in the state where the corrugated pipe is cut, and electric insulation performance is provided, and the trouble of erosion due to the electric conduction such as microcell erosion can be prevented.

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