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21. 发明专利

JP2001132881A BELL-AND-SPIGOT 失效
公开(公告)号：JP2001132881A
公开(公告)日：2001-05-18
申请号：JP31615599
申请日：1999-11-08
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD , SANKO GAS SEIKI KK
发明人： FUJIYOSHI MINORU , OKUBO ATSUSHI , MINAMI TOMOYUKI , FUJINAWA YASUSHI
IPC分类号： F16L33/00 , F16L33/28 , F16L37/12 , F16L37/22
摘要： PROBLEM TO BE SOLVED: To positively seal a bellows pipe and to prevent the bellows pipe from slipping of by compressing a packing and pressing a slip-off preventing member by a spring released from the compressed state only by inserting the bellows pipe in a joint body. SOLUTION: This bell-and-spigot pipe joint comprises, inside a joint body, a spring 30 sprung in an axial direction, a guide 20 for holding the spring 30 in the compressed state, and a packing 41 compressed by the elongation of the spring 30. The packing 41 is compressed by releasing the compression holding state of the spring 30 by a bellows pipe 40 inserted in the joint body, and further a pipe 40 is locked in the slip-off prevented state. The spring holding member 20 has an annular part 22 for receiving one end of the spring 30; a locking piece 21 extending to the inner part in the axial direction; a projecting part 23 locked to an inner surface recess 15 of the joint body; and an abutting part 24 abutting on the end part of the pipe 40. The spring holding member 20 is locked to the recessed groove 15 provided in the joint body, and the lock state is released being pressed by the end part of the bellows pipe 40. A soft packing or a lip packing is used as the packing 41.

22. 发明专利

JP2001108166A JOINT 失效
公开(公告)号：JP2001108166A
公开(公告)日：2001-04-20
申请号：JP28617899
申请日：1999-10-07
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： OKUBO ATSUSHI , MINAMI TOMOYUKI , SATO FUMITAKA , TSUTSUMI CHIAKI
IPC分类号： F16L19/08
摘要： PROBLEM TO BE SOLVED: To provide a joint by which leakage can be surely prevented by packing and a stop ring surely bites into a pipe, the outer surface of which is coated with hard resin to secure pull-out inhibit force. SOLUTION: This joint includes a joint main body in which a packing chamber is formed on the inner surface of the open end, an annular packing accommodated in the packing chamber, an annular retainer abutting on the axial outside surface of the packing, a push ring which is screw-engaged with the joint main body to press the packing through the retainer, and forms a first taper surface which is open opposite to the packing chamber and gradually decreased in inside diameter as it goes toward the opposite side to the opening, and a stop ring in which a second taper surface which is a ring-like body obtained by partially cutting the circumference, and inclined in the same direction as the first taper surface of the push ring to be brought into sliding contact with the first taper surface is formed on the outer periphery and a projected part which bites into the outer peripheral part of a pipe to be connected by reduction in diameter is formed on the inner periphery, and the projecting part is formed in plural places of the stop ring in the circumferential direction.

23. 发明专利

JP2001056065A EMERGENCY CUTOFF VALVE 失效
公开(公告)号：JP2001056065A
公开(公告)日：2001-02-27
申请号：JP23172299
申请日：1999-08-18
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： FUKUSHIMA SHUJI , AOKI SHINJI , ITANI TAKAAKI , MINAMI TOMOYUKI
IPC分类号： F16K17/30
摘要： PROBLEM TO BE SOLVED: To completely interrupt a channel at the time of an interruption and to quickly restore a channel within a pipe to its original state at the time of a restoration. SOLUTION: Within a synthetic resin valve main body 10, a valve unit 20 for closing valve element 22 in an emergency and interrupting a flow port is mounted. Within the valve main body 10, a communication channel for communicating between a primary side and a secondary side is provided separately from a valve flow port 13, and a valve 30 for opening and closing the communication channel is provided and an opening/closing operation handle of the valve 30 is provided so as to be operable from the outside.

24. 发明专利

JP2001050453A CORRUGATED TUBE JOINT 失效
公开(公告)号：JP2001050453A
公开(公告)日：2001-02-23
申请号：JP22814299
申请日：1999-08-12
申请人： TOKYO GAS CO LTD , HITACHI METALS LTD , SANKO GAS SEIKI KK
发明人： MINAMI TOMOYUKI , MIZUKAMI SEIJI , HOTTA HISAO , FUJIYOSHI MINORU , UENO TOSHIYUKI , FUJINAWA YASUSHI
IPC分类号： F16L33/00 , F16L33/28 , F16L37/12
摘要： PROBLEM TO BE SOLVED: To provide a corrugated tube joint that is advantageously, for example, small and simple in construction or connectable without tools or manually. SOLUTION: A joint body 21 carries thereon a case 10 in fixed fashion. The case 10 comprises a first or upper case 11 and a second or lower case 12. Within the case 10, a retainer 13 is interposed between the lower end face of the first case 11 and an annular projection 12e of the second case 12. The retainer 13 consists of an outer ring 31 of elastic material such as rubber, and a rib 33 of brass attached to the internal surface of the outer ring 31. When receiving axially downward force from the point of a corrugated tube T, the rib 33 can bob down accordingly.

25. 发明专利

JPH1172185A RISER PIPE FOR FLUID PIPING 失效
公开(公告)号：JPH1172185A
公开(公告)日：1999-03-16
申请号：JP3303098
申请日：1998-02-16
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： ANAMIZU TAKASHI , MINAMI TOMOYUKI , OKUBO ATSUSHI , FUKUSHIMA SHUJI , NOZAKI HIDEO , FUJIYOSHI MINORU , MIYATA KAZUFUMI
IPC分类号： F16L19/02 , F16L9/06 , F16L9/14 , F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To resolve various problems caused by corrosion by arranging a metal bellows pipe by making it rise from a plastic pipe in the underground without bringing it in contact with a soil. SOLUTION: A packing 22 is mounted on an outer face in a lower end part of a bellows pipe 40 to seal a section between the bellows pipe 40 and a plastic pipe 30. For this reason, a protection pipe 50 does not come in contact with the metallic bellows pipe 40, and insulation between the ground and the metallic bellows pipe 40 is achieved even if the protection pipe 50 is made of metal so that a problem of macro cell corrosion does not occur. Furthermore, a pipe made of vinyl chloride or a pipe made of fireproof mortar may be used. Moreover, since a section between the metallic bellows pipe 40 and the protection pipe 50 is sealed by a lip packing 21 and a section among the metallic bellows pipe 30, the plastic pipe 30, and the protection pipe 50 is sealed by a packing 20 provided in a wave ridge projection and recessed shape of the bellows pipe, the metallic bellows pipe is shut off from rainwater, and a problem of corrosion due to the contact of the thin walled metallic bellows pipe with water does not occur.

26. 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.

27. 发明专利

JP2005308210A Flexible pipe 审中-公开
标题翻译：柔性管
公开(公告)号：JP2005308210A
公开(公告)日：2005-11-04
申请号：JP2005068002
申请日：2005-03-10
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： MORI MASAHIRO , FUJIYOSHI MINORU , SATO FUMITAKA , HAMAGUCHI KANKI , MINAMI TOMOYUKI
IPC分类号： F16L9/06 , F16L9/14 , F16L11/11 , F16L11/127 , F16L11/15 , F16L11/20 , H02G3/04
CPC分类号： F16L11/20 , F16L11/15 , H02G3/0468
摘要： PROBLEM TO BE SOLVED: To provide a flexible pipe capable of sufficiently protecting a metal corrugated tube against indirect lightning stroke. SOLUTION: The flexible pipe comprises a resin layer 20, a conductive metal layer 22 and an insulating resin layer 24 formed on the outer periphery of the metal corrugated tube 12 in which fluid flows. With the conductive resin layer 20, the metal layer 22 and the insulating resin layer 24 formed on the outer periphery of the metal corrugated tube 12 in the way of sequentially covering it, e.g., the metal corrugated tube is prevented from being holed even when spark discharge attacks on the flexible pipe due to indirect lightning stroke entering into a housing, thus suppressing the leakage of gas. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够充分保护金属波纹管以防间接雷击的柔性管。解决方案：柔性管包括形成在流体流动的金属波纹管12的外周上的树脂层20，导电金属层22和绝缘树脂层24。通过导电树脂层20，即使在发生火花时也防止金属波纹管12例如金属波纹管等顺序地覆盖金属波纹管12的外周上形成的金属层22和绝缘树脂层24。由于间接雷击进入壳体，对柔性管道进行放电攻击，从而抑制气体泄漏。版权所有（C）2006，JPO＆NCIPI

28. 发明专利

JP2004316733A Corrugated pipe joint 有权
公开(公告)号：JP2004316733A
公开(公告)日：2004-11-11
申请号：JP2003109789
申请日：2003-04-15
申请人： Hitachi Metals Ltd , Sankoo 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： MINAMI TOMOYUKI , SATO FUMITAKA , FUJIYOSHI MINORU , KASAI SHINYA , SATO YOICHI
IPC分类号： F16L33/00 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To provide a corrugated pipe joint having such advantages that the number of parts disposed off in connection operation can be reduced or the pipe joint can be re-used by disassembling without cutting the end part of a corrugated pipe after installation. SOLUTION: In this corrugated pipe joint 1, since a retainer holder 31 is slidably positioned at a lock position by a spacer 50 before installation, such an erroneous operation that the retainer 41 is locked before the corrugated pipe T is inserted can be prevented. Since, in the installed state, the retainer holder 31 can be slid to the lock position with the spacer 50 installed between the retainer holder 31 and a body 3, the spacer 50 does not become a waste part in installation. In addition, since, after the installed state, the retainer holder 31 can be slid beyond the lock position to an unlockable state after the spacer 50 is released from the retainer holder 31 and the body 3, the joint 1 can be disassembled without damaging the tip part of the corrugated pipe T. COPYRIGHT: (C)2005,JPO&NCIPI

29. 发明专利

JP2003113975A INSERTION PIPE JOINT 审中-公开
公开(公告)号：JP2003113975A
公开(公告)日：2003-04-18
申请号：JP2001308800
申请日：2001-10-04
申请人： TOKYO GAS CO LTD , HITACHI METALS LTD , SANKO GAS SEIKI KK
发明人： MINAMI TOMOYUKI , SATO FUMITAKA , FUJINAWA YASUSHI , IGARASHI KAZUTADA , IBAYASHI MAKOTO , FUJIYOSHI MINORU , KASAI SHINYA
IPC分类号： F16L33/00 , F16J15/10 , F16L33/28
摘要： PROBLEM TO BE SOLVED: To provide a safe insertion pipe joint of a simple structure capable of surely sealing and installation by only inserting a bellows pipe into a joint body and rotating a nut member. SOLUTION: In the insertion pipe joint 16 connecting bellows pipe F having wave shape projection and recess parts 18, 20 on an outer circumference surface, a joint body 26, an annular nut member 30, a packing member 42, an annular pressing sleeve 100, annular collar member 102 and an annular retainer member 50 are provided, a pressing pin 112 is provided on either of an end part of the nut member or an end part of the pressing sleeve, a pressing tapered surface 108 inclined to give the pressing sleeve force for moving the same to an inner part of the joint body by rotation of the nut member by getting into contact with the pressing pin is formed on another end part, and the collar member gets into contact with the retainer member and deforms the same in a direction of reducing diameter when the collar member is inserted into the joint body.

30. 发明专利

JP2002347122A POWER SUPPLY CONTROL DEVICE FOR RESIN JOINT 失效
公开(公告)号：JP2002347122A
公开(公告)日：2002-12-04
申请号：JP2001153135
申请日：2001-05-22
申请人： TOKYO GAS CO LTD , HITACHI METALS LTD
发明人： AKIYAMA SHINICHI , MINAMI TOMOYUKI , YOSHII TAKAAKI , INOUE YASUYUKI
IPC分类号： B29C65/34 , B29L31/26 , G06K7/00
摘要： PROBLEM TO BE SOLVED: To provide a power supply control device for a resin joint capable of grasping two kinds of bar code information and reading out irrespectively of the order. SOLUTION: In the resin joint for thermally welding resin pipe members, a first bar code of a control data and a second bar code of a manufacturing data of the resin joint are read out with a bar code reader 20, and power is supplied to a heating heater arranged at the resin joint based on the data. The device is provided with a display section 32 for displaying a prescribed display, a storage section 38 for previously storing the first and the second forms, a judgement section 42 for making a judgement based on the memory content of the storage section 38, and a thermally welding control section 24 which receives two bar code information when the two bar code information to be input based on the judgement result is different, or receives either one of the two bar code information when the information is same, and controls the display section 32 to display the other uninput form information to be input.

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