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1. 发明专利

JP2002347120A CHECKING RESISTOR DEVICE AND POWER SUPPLY CONTROL DEVICE 失效
公开(公告)号：JP2002347120A
公开(公告)日：2002-12-04
申请号：JP2001153133
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： F16L47/02 , B29C65/34 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To provide a checking resistor device capable of detecting electric failures at an adapter terminal means or the like. SOLUTION: In the checking resistance device used in the power supply control device, the adapter input terminals 46 of the adapter terminal means 19 are connected to the tip end terminals 18 of the two output cables 16 of the power supply control device, and the adapter input terminals of the adapter terminal means are connected to the input terminals 8 of resin joints 4 having a built in heating heater 6 therein to be soldered to a resin pipe member. The device is provided with the two checking terminals 56 to be detachably attached either to the tip end terminals of the two output cables or to the adapter output terminals, and the reference resistors 58 connected between the two checking terminals. In this way, electric failures at the adapter terminal means or the like are detected.

2. 发明专利

JP2002206686A BRANCH DERIVING JOINT 审中-公开
公开(公告)号：JP2002206686A
公开(公告)日：2002-07-26
申请号：JP2001240004
申请日：2001-08-08
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： AKIYAMA SHINICHI , YOSHII TAKAAKI , KATO KAZUMI , MIZUTANI SHIGERU , AOKI SHINJI
IPC分类号： B26F1/32 , F16L41/06
摘要： PROBLEM TO BE SOLVED: To solve the problem wherein a joint is so large-size that a borer D, an opening and closing cutoff device C, and a stopper plug mounting machine F are needed and a work process is complicated, normal boring is difficult, a large rigidity is needed, and when a large flow is branched and derived, a hole saw becomes large so that the whole joint becomes a large size. SOLUTION: This branch deriving joint is formed by a saddle part 11 connected to the surface of a main pipe, and a joint main body formed by a branch pipe part 12 branching off the saddle part intersecting the axis of the main pipe and a bored pipe part 13 provided in a space up to the branch pipe part at an angle of 40 to 50 degrees relative to the axis of the main pipe. An elliptical hole is bored in the surface of the main pipe by the hole saw in the bored pipe part to perform branch deriving. The inside diameter of the branch pipe part 12 substantially approximates the inside diameter of the main pipe 20, and the hole saw having the outside diameter h 75 to 90% of the inside diameter d of the main pipe is used to bore an elliptical hole in the surface of the main pipe to perform the branch deriving.

3. 发明专利

JP2006349047A PIPE JOINT, BENDING DEVICE FOR PIPE JOINT, AND BENDING METHOD FOR PIPE JOINT 审中-公开
公开(公告)号：JP2006349047A
公开(公告)日：2006-12-28
申请号：JP2005175732
申请日：2005-06-15
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD , TOHO GAS KK
发明人： NISHIKATA NOBUHIRO , OKIAYU TAKUJI , HAYASHI AKIHITO , KANISAWA YUTAKA , YOSHII TAKAAKI , IMAGAWA TAKASHI , SUGIMOTO TAKAFUMI
IPC分类号： F16L43/00 , F16L47/02
摘要： PROBLEM TO BE SOLVED: To provide a bending device for a pipe joint capable of bending it at an arbitrary angle at piping construction site without causing deformation and crush of the inside of the pipe joint and flattening it. SOLUTION: This bending machining device for the pipe joint is composed of a first holding mechanism 14 for holding a one end part of the tubular pipe joint 2 turnably, a second holding mechanism 16 for holding the other end part of the pipe joint turnably, and a jack-up mechanism 18 for pushing up a part to be bent and machined of the pipe joint and bending it at a predetermined angle. Consequently, bending is performed at an arbitrary angle at the piping construction site without causing deformation and crush of the inside of the pipe joint and flattening it. COPYRIGHT: (C)2007,JPO&INPIT

4. 发明专利

JP2004232753A Branch taking-out joint and tool for branch joint 审中-公开
公开(公告)号：JP2004232753A
公开(公告)日：2004-08-19
申请号：JP2003022741
申请日：2003-01-30
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： AKIYAMA SHINICHI , YOSHII TAKAAKI , AOKI SHINJI , KOIDE TOSHIYUKI
IPC分类号： B26D1/08 , F16L41/06 , F16L47/02 , F16L55/00
摘要： PROBLEM TO BE SOLVED: To provide a branch taking-out joint for quickly and easily connecting a branch pipe, and also reusing a cutter member. SOLUTION: This branch taking-out joint is used for connecting the branch pipe 8 to a main pipe 2 composed of a thermoplastic resin, and is composed of a saddle part 12 fused on a surface of the main pipe, a branch pipe connecting pipe part 14 branching off so as to be substantially orthogonal to an axial line 2A of the main pipe from the saddle part, a cutter inserting pipe part 16 for inserting a cutter member 18 for cutting a side part of the main pipe by branching off in the direction different from the branch pipe connecting pipe part from the saddle part, a cover member 32 rockably supported by an inner wall of the saddle part and capable of closing a branch port of the cutter inserting pipe part in a sealed state by external force and a stopper member 38 arranged in the cover member and preventing the cover member from excessively rotating. COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2000130676A BRANCH SADDLE JOINT AND BRANCH TAKING OUT METHOD 失效
公开(公告)号：JP2000130676A
公开(公告)日：2000-05-12
申请号：JP30483598
申请日：1998-10-27
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： ANAMIZU TAKASHI , AKIYAMA SHINICHI , YOSHII TAKAAKI , MIZUTANI SHIGERU , AOKI SHINJI
IPC分类号： F16L41/02 , F16L41/04
摘要： PROBLEM TO BE SOLVED: To easily ensure a dimension of specified embedding depth of a main pipe by providing a saddle part connected and fixed on an outer face of the main pipe and a drilled hole pipe part on which a cutter is mounted, providing an operation part operating the cutter on the opposite side to the drilled hole pipe part, and providing a branch pipe part taking out branch on an end part side. SOLUTION: When a branch pipe is taken out of an embedded main pipe 1, a saddle part 10 of a branch saddle is connected with and is fixed on a side of the main pipe 1 using a clamp 11, a hole drilling cutter 30 mounted in a drilled hole pipe part 20 is operated from an operation part 21 to move the hole drilling cutter 30, the side of the main pipe 1 is cut out, and a hole is drilled in it. Consequently, a necessity that the main pipe 1 is embedded extra deeply is eliminated, the piping and digging works of the main pipe 1 are facilitated, and branch taking out piping from the main pipe 1 can be done easily. Moreover, the branch saddle 1 is formed by thermoplastic resin, and a heating wire 12 is embedded in an inner face of the saddle part 10 so that it can be fused and fixed on the embedded main pipe made of thermoplastic resin and branch taking out from a resin pipe can be done easily.

6. 发明专利

JPH09207224A ELECTROFUSION-TYPE PIPE JOINT AND ITS MANUFACTURE 失效
公开(公告)号：JPH09207224A
公开(公告)日：1997-08-12
申请号：JP1509096
申请日：1996-01-31
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： KATAYAMA YOSHIO , HIRAO TAKANOBU , NANBA TOSHIHIRO , TAKESUE HIROJI , ANAMIZU TAKASHI , YOSHII TAKAAKI
IPC分类号： B29C45/16 , B29C65/34 , B29D23/00 , B29L23/00 , B29L31/24 , F16L47/02 , F16L13/00
摘要： PROBLEM TO BE SOLVED: To increase an interlayer welding strength and prevent a layer separation from occurring in a strip bending test by specifying the surface temperatures of the outward member layer as a lower layer and the injected resin temperatures of the outward member layer as an upper layer. SOLUTION: A two-tier outward member layer of a thermoplastic resin is formed on the outer face of an inward member layer 21 of the thermoplastic resin around which an electric heating wire 22 is wound. In addition, the surface temperatures of the outward member layer 25 as a lower layer are set to 40 deg.C or higher, while the injected resin temperatures of the outward member layer 26 as an upper layer are set to 240-270 deg.C. That is, the electric heating wire 22 is connected to a connector pin 24 inserted into and fixed to the end part of the inward member layer 21. An intermediate member 27 with the inward member layer 21 is obtained by injection- molding the molten resin of the outward member layer 25 to the inward member layer 21 with the electric heating wire 22. After that, the resin of a final outward member layer 26 is injection-molded to the outer face of the intermediate member 27. Thus the welding property of the outer member layers is improved by increasing the surface temperatures of the outward member layer as the lower layer and the injected resin temperatures of the outward member layer as the upper layer.

7. 发明专利

JP2014119007A Branch joint 有权
标题翻译：分支接头
公开(公告)号：JP2014119007A
公开(公告)日：2014-06-30
申请号：JP2012273298
申请日：2012-12-14
申请人： Hitachi Metals Ltd , 日立金属株式会社 , Tokyo Gas Co Ltd , 東京瓦斯株式会社
发明人： KATO AKISHI , KANISAWA YUTAKA , YOSHII TAKAAKI , HOSHINO MITSUYOSHI
IPC分类号： F16L41/06 , F16L41/02
摘要： PROBLEM TO BE SOLVED: To provide a high-rigidity branch joint for a cast iron pipe, which can be attached to a plurality of types of pipes different in diameter, while being easily handled.SOLUTION: A branch joint includes a branch sleeve member, a push sleeve member, a seal member, and a fastening member. In the branch sleeve member, wedge-shaped protrusions 207, which are formed in a shape tapered toward in the direction of being fastened to the push sleeve member, are formed at both circumferential ends, respectively. In the push sleeve member, a recess for receiving the wedge-shaped protrusion 207 is formed.
摘要翻译：要解决的问题：提供一种用于铸铁管的高刚性分支接头，其可以被附接到直径不同的多种类型的管道，同时易于处理。解决方案：分支接头包括分支套筒构件，推动套筒构件，密封构件和紧固构件。在分支套筒构件中，分别在两个圆周端形成有形成为朝向紧固到推动套筒构件的方向上渐缩的形状的楔形突起207。在推动套筒构件中形成有用于容纳楔形突起207的凹部。

8. 发明专利

JP2004230511A Cutter for drilling 有权
公开(公告)号：JP2004230511A
公开(公告)日：2004-08-19
申请号：JP2003021884
申请日：2003-01-30
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： AOKI SHINJI , AKIYAMA SHINICHI , YOSHII TAKAAKI
IPC分类号： B23B41/08 , F16L41/06
摘要： PROBLEM TO BE SOLVED: To provide a cutter for drilling which prevents blockage of a drilled hole due to chips cut off from a main pipe when it is drilled.
SOLUTION: This cutter for drilling is furnished with: a cylindrical cutting blade 7c stored free to rotate in a drilling pipe part 4 of a resin made branching fetching coupler 1 welded on the main pipe 10 formed of resin and to drill an outer peripheral surface side part of the main pipe 10 upward from its bottom; a drilling cutter 7 formed on its end part and having a base part 7a on which a first screw part 7b larger in diameter than the cutting blade 7c on its outer periphery; and a screw shaft 71 projected to the front of an end surface 7d of the cutting blade 7c from the base part 7a and on which a second screw part 71c having an outside diameter in size enough to bite into the main pipe 10 on its head end is formed. The second screw part 71c has the same screwing-up direction and the same pitch as those of the first screw part 7b.
COPYRIGHT: (C)2004,JPO&NCIPI

9. 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.

10. 发明专利

JP2002310314A EXCESSIVE FLOW-PREVENTING VALVE 失效
公开(公告)号：JP2002310314A
公开(公告)日：2002-10-23
申请号：JP2001111708
申请日：2001-04-10
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： AKIYAMA SHINICHI , MINAMI TOMOYUKI , YOSHII TAKAAKI , ITANI TAKAAKI
IPC分类号： F16K17/30
摘要： PROBLEM TO BE SOLVED: To provide an excessive flow-preventing valve for regulating a pipe pressure to have optimum shut-off performance depending on usage conditions, shutting off the flow of a fluid without a delay in emergency and assuring automatic resetting operation after shut-off. SOLUTION: The excessive flow-preventing valve comprises a valve element to be energized in the direction of separating the valve element 60 from a valve seat 43 by a coil spring 70 for adjusting a compression distance of the coil spring 70 for energizing the valve element. The valve element 60 is supported by a valve element supporting member 50 extending from the valve seat 43, and the valve element 60 is provided with an automatically resetting through flow path 61 which is covered with the supporting member 50 and closed during opening the valve in normal use.

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