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1. 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

2. 发明专利

JP2007255483A Angle universal type pipe joint and method for bending this pipe joint 审中-公开
标题翻译：角度通用型管接头和弯管管接头的方法
公开(公告)号：JP2007255483A
公开(公告)日：2007-10-04
申请号：JP2006078119
申请日：2006-03-22
申请人： Hitachi Metals Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 日立金属株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社
发明人： NISHIKATA NOBUHIRO , OKIAYU TAKUJI , YOSHII TAKAAKI , IMAGAWA TAKASHI , NAKANISHI MIOKO
IPC分类号： F16L47/02
摘要： PROBLEM TO BE SOLVED: To provide a pipe joint capable of being bent at an optional angle at pipe construction site without causing deformation, crushing, and flattening of the inside of the pipe joint and to provide a method for bending this pipe joint. SOLUTION: Heating members composed of, for example, heating wires are provided in three systems in a thick wall part of the pipe joint by winding them around it and burying them into it, two current carrying terminals 1A, 1B are provided on both end sides of each of the heating members in three systems by protruding outward, the thick wall part 3 and a resin-made pipe part 4 are integrally fused, and the thick wall part of the pipe joint is bent at an optional angle at the pipe construction site by using a bending device. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在管道施工现场以任意角度弯曲的管接头，而不会导致管接头内部变形，破碎和变平，并提供一种弯曲管接头的方法。解决方案：由例如加热丝组成的加热件在管接头的厚壁部分中通过将其缠绕在其上并将其埋入其中而在三个系统中设置，两个载流端子1A，1B设置在通过向外突出的三个系统中的每个加热构件的两端侧，厚壁部3和树脂制管道部4一体地熔合，并且管接头的厚壁部在任意角度弯曲管道施工现场采用弯曲装置。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006177513A Multi-stage bend for piping, and connecting method for resin pipe 审中-公开
标题翻译：用于管道的多级弯管和用于树脂管的连接方法
公开(公告)号：JP2006177513A
公开(公告)日：2006-07-06
申请号：JP2004373991
申请日：2004-12-24
申请人： Hitachi Metals Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 日立金属株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社
发明人： NISHIKATA NOBUHIRO , OKIAYU TAKUJI , INOUE YASUYUKI , IMAGAWA TAKASHI , SUGIMOTO TAKAFUMI , KASUGAI SHINJI
IPC分类号： F16L43/00 , B29C65/34 , B29L23/00 , F16L47/02
摘要： PROBLEM TO BE SOLVED: To provide a multi-stage bend for piping, which can form a coupling member having a plurality of bending angles from one kind of a member.
SOLUTION: The multi-stage bend 1 for piping has a plurality of straight pipe sections 12a to 12e, and a plurality of bent sections 11a, 11b, 11c, and 11d. The adjacent straight pipe sections 12 are bent pipe-shaped joint members connected so that their center axes are crossed via the bent sections 11. In an other multi-stage bend 4, an electrically fusion-welded joint 5, in which a socket 51 inserted with a resin pipe 3 is provided and an electric heat wire 52 is buried in an inner surface of the socket, can be firmly fixed into the straight pipe section at one end.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于管道的多级弯头，其可以形成具有来自一种构件的多个弯曲角度的联接构件。解决方案：用于管道的多级弯管1具有多个直管段12a至12e以及多个弯曲部分11a，11b，11c和11d。相邻的直管部12是弯曲的管状接头构件，其连接成使得它们的中心轴线经由弯曲部11交叉。在另一多级弯曲部4中，插入有插座51的电熔接头5 设置有树脂管3并且电热丝52埋在插座的内表面中，可以在一端牢固地固定在直管部中。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2002214064A METHOD OF INSPECTING GAS LEAKAGE FROM ALREADY INSTALLED GAS PIPE AND GAS ASPIRATOR 失效
公开(公告)号：JP2002214064A
公开(公告)日：2002-07-31
申请号：JP2001009725
申请日：2001-01-18
申请人： TOHO GAS KK
发明人： HIRATA NAOTO , SUZUKI MASATO , IMAGAWA TAKASHI , MATSUURA HIDETOSHI
IPC分类号： G01N1/22 , G01M3/04
摘要： PROBLEM TO BE SOLVED: To provide a method of inspecting gas leakage and a gas aspirator by which gases existing in boreholes can be sucked out without separately preparing any cleaner type suction blower which is only used for sucking out the gases existing in the boreholes and has an explosion-proof constitution. SOLUTION: In the method of inspecting gas leakage, the gas leaking spot of an already installed gas pipe 4 is detected by detecting gas concentrations in a plurality of boreholes 2 when a prescribed period of time has elapsed after the boreholes 2 are drilled above the pipe 4 and the gases existing in the boreholes 2 are sucked out. The sucking out of the gases is performed by respectively connecting ejectors 6 to the boreholes 2 and discharging the gases existing in the boreholes 2 to the outside by supplying compressed air to the ejectors 6.

5. 发明专利

JP2001324035A AUXILIARY DEVICE FOR AIR SUPPLY TO AND DISCHARGE FROM GAS BAG 失效
公开(公告)号：JP2001324035A
公开(公告)日：2001-11-22
申请号：JP2000142706
申请日：2000-05-16
申请人： TOHO GAS KK
发明人： HIRATA NAOTO , IMAGAWA TAKASHI
IPC分类号： F04B49/06 , B01J4/00 , F04B41/00 , F16K7/00
摘要： PROBLEM TO BE SOLVED: To provide an auxiliary device for air supply to and discharge from a gas bag, capable of supplying air to and discharging air from a gas bag in a short period of time and with ease. SOLUTION: The auxiliary device for air supply to and discharge from air bag is a device for supplying and discharging air by using a compressor to a gas bag to shut off gas by arranging and expanding it in a gas pipe and integrating an air supply pipe 10 furnished with a regulator 2 which is a pressure regulator and an air discharge pipe furnished with an ejector 4 which is a suction negative pressure generating device.

6. 发明专利

JP2002039460A SEALING CONSTRUCTION METHOD AND SEALING EQUIPMENT FOR EXISTING PIPE JOINT PART 失效
公开(公告)号：JP2002039460A
公开(公告)日：2002-02-06
申请号：JP2000221680
申请日：2000-07-24
申请人： TOHO GAS KK , TOHO RIKA KK , OSAKA BOSUI KENSETSUSHA KK
发明人： HIRATA NAOTO , IMAGAWA TAKASHI , KANAMARU TAKESHI , MATSUURA HIDETOSHI , SUGIURA KOJI , ISHII KATSUHIRO , KAMIIDE AKIRA , MINAMI KATSUHISA
IPC分类号： E03B7/00 , F16L21/02 , F16L55/16
摘要： PROBLEM TO BE SOLVED: To improve the reliability in sealing by forming an uniform sealing layer on a joint part. SOLUTION: A filler hole 15 of a sealing material is formed on an upper part of the joint part 12 of existing pipes 1 and 2, and a permanent magnet 40 is placed over the existing pipes 1 and 2. The existing pipes 1 and 2 are magnetized to form a magnetic path 22 from the existing pipe 1 to the existing pipe 2 across the joint part 12. In this condition, the sealing material mixed with a magnetic member is injected to the joint part 12 from a pipe 33 of an injection device 20. As the mixed magnetic member receives the attraction force from a magnetized tubular body, the sealing material 50 is also attracted to a tubular body side with the magnetic member. As a result, the sealing material injected to the upper part can be prevented from excessively flowing to a lower part, and the approximately uniform seal layer is formed over an inner periphery of the joint part 12.

7. 发明专利

JP2001328026A BORING MACHINE FOR TAPPING 失效
公开(公告)号：JP2001328026A
公开(公告)日：2001-11-27
申请号：JP2000149557
申请日：2000-05-22
申请人： TOHO GAS KK , OSAKI SEIMITSU KK
发明人： HIRATA NAOTO , IMAGAWA TAKASHI , NAKAGAWA MASAYUKI , MORI AKIHITO , KOMINE TAKASHI
IPC分类号： B23G1/24 , B23G1/52
摘要： PROBLEM TO BE SOLVED: To provide a boring machine for tapping having the constitution easily performing different works in the same position and capable of eliminating a fault such as a weight increase. SOLUTION: This boring machine for tapping used for a tapping by boring a hole in a part of an existing pipeline, is provided with a placing member 2 having an opening part 2A opposed to a boring part in the existing pipeline P, having a shutter member 8 for opening and closing the opening part 2A and installable in the existing pipeline P, the boring machine 9 oppositely installable in the opening part 2A in the placing member 2 and selectively installed according to the work content, a tapping mechanism 7 and a device 10 for work except for these work. The boring machine 9, the tapping mechanism 7 and the device 10 for the work except for these work are respectively attached to the placing member 2 according to work order. The tapping mechanism 7 has a tapping part 7A internally storing a tap and a speed reduction mechanism part 7C for transmitting torque to the tap of the tapping part 7A, and the speed reduction mechanism part 7C is inserted into and fitted to a guide rod 11 vertically erected on the tapping part 7A.

8. 发明专利

JPH0657788A FASTENING DEVICE FOR PIPE JOINTING 失效
公开(公告)号：JPH0657788A
公开(公告)日：1994-03-01
申请号：JP21601092
申请日：1992-08-13
申请人： TOHO GAS KK , REX IND CO
发明人： IMAGAWA TAKASHI , WASHIMI TAKASHI , MARUYAMA MASAAKI , FUJITA YOSHITO
IPC分类号： E03B7/00 , F16L1/00
摘要： PURPOSE:To improve workability by a method wherein annular pressing members provided over the circumference of a pipe are bound together, being placed facing a jointing flange on the other pipe, and the annular pressing members and the jointing flange are fastened together with a pair of fasteners. CONSTITUTION:In a pair of pipes P1 and P2, each of which is formed in an extended diameter at its one end with a jointing flange 15 provided, the end of one pipe is fitted, through a wedge-like sealing material 19, into the end in the extended diameter of the other pipe. Then, annular pressing members 18 provided over the circumference of the pipe are placed, facing a jointing flange 15 of the other pipe, and is pressed against the wedge-like sealing material 19. A first fastener 41 is then pressed from the outside to the annular pressing members 18. A second fastener 43 is provided so that it can move relatively against the first fastener 41 in the axial direction that is approximately in parallel with the axis of a fixing bolt 14. Furthermore, a movable press-down member 71, formed integral with the second fastener 43, is pressed from the outside against the jointing flange 15. The first fastener 41 and the press-down member 71 are brought close together to fasten the jointing flange 15 and the annular pressing members 18, both of which are placed in between.

9. 发明专利

JP2006200692A Protecting member for non-open cut propelling technique 审中-公开
标题翻译：保护非开放螺旋桨技术的会员
公开(公告)号：JP2006200692A
公开(公告)日：2006-08-03
申请号：JP2005015277
申请日：2005-01-24
申请人： Hitachi Metals Ltd , Toho Gas Co Ltd , 日立金属株式会社 , 東邦瓦斯株式会社
发明人： NISHIKATA NOBUHIRO , OKIAYU TAKUJI , IMAGAWA TAKASHI , SUGIMOTO TAKAFUMI
IPC分类号： F16L58/10
摘要： PROBLEM TO BE SOLVED: To provide a protecting member to be propelled in a ground while preventing the separation of a coating resin.
SOLUTION: The protecting member 3 is provided for protecting a connection portion of a connection steel pipe 1 consisting of a plurality of resin coated steel pipe 2 (2a, 2b) axially connected to one another and each having a primary pipe 21 (21a, 21b), an anticorrosive layer (22a, 22b) covering the outer peripheral face thereof and a protecting layer 23 (23a, 23b) applied to the outer peripheral face thereof. It comprises an anticorrosive member 31 to be applied to the anticorrosive layers 22 on both sides of a joint portion formed with the primary pipe 22 whose end faces abut on each other, and a resin sleeve 32 which is longer than the anticorrosive member 31 and either end of which has a diameter smaller than that of the protecting layer 23 and is welded to the anticorrosive layer 22.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供在地面中被推进的保护构件，同时防止涂层树脂的分离。解决方案：保护构件3设置用于保护由多个轴向连接的多个树脂涂覆钢管2（2a，2b）组成的连接钢管1的连接部分，每个具有主管21（ 21a，21b），覆盖其外周面的防腐层（22a，22b）和施加到其外周面的保护层23（23a，23b）。它包括防腐构件31，其被施加到形成有端面彼此邻接的主管22的接合部的两侧的防腐蚀层22以及比防腐蚀构件31长的树脂套筒32和其端部的直径小于保护层23的直径，并且焊接到防腐层22上。（C）版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2007147071A Protection method of joint part of resin coating steel pipe, joint part protection construction of resin coating steel pipe and spheroidal tool 有权
标题翻译：树脂涂层钢管接头部分保护方法，树脂涂层钢管和空气工具接头部件保护结构
公开(公告)号：JP2007147071A
公开(公告)日：2007-06-14
申请号：JP2006289321
申请日：2006-10-25
申请人： Hitachi Metals Ltd , Toho Gas Co Ltd , 日立金属株式会社 , 東邦瓦斯株式会社
发明人： NISHIKATA NOBUHIRO , OKIAYU TAKUJI , WADA MITSUO , IMAGAWA TAKASHI , SUGIMOTO TAKAFUMI , NAKANISHI MIOKO
IPC分类号： F16L58/18 , F16L58/10
摘要： PROBLEM TO BE SOLVED: To provide the protection method and the protection construction of a joint part of a resin coating steel pipe which do not peel off the coating resin when a pipe drives in an underground as well as the spheroidal tool used for the same.
SOLUTION: In the joint part protection method of the resin coating steel pipe which an anticorrosive layer and a protection layer are formed to the outer circumference of an original pipe (steel pipe) in two layers, the joint part protection structure of the resin coating steel pipe removes the protection layer 23a, 23b and the anticorrosive layer 22a, 22b of a prescribed length from the resin coating steel pipe 2a, 2b. About the joint part which is jointed by confronting the edge part of the resin coating steel pipe 2a, 2b each other, the protection layer 23a of the resin coating steel pipe 2a on the drive direction side is peeled off from end of the anticorrosive layer 22a with the prescribed length and an annular clearance 26 is formed between the protection layer 23a and the anticorrosive layer 22b by using the spheroidal tool 3. The anticorrosive layer 22a, the anticorrosive member 4, the protection member 5 to protect the outer circumference part of the protection layer 23b and the anticorrosive layer 22b constitutes this unit, while inserting one end in this clearance 26.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供当管道在地下驱动时不会剥离涂层树脂的树脂涂层钢管的接合部分的保护方法和保护结构以及用于一样。
解决方案：在两层的原管（钢管）的外周形成有防腐层和保护层的树脂涂层钢管的接合部保护方法中，树脂涂层钢管从树脂涂层钢管2a，2b去除规定长度的保护层23a，23b和防腐蚀层22a，22b。关于通过面对树脂涂层钢管2a，2b的边缘部分而接合的接合部分，驱动方向侧的树脂涂覆钢管2a的保护层23a从防腐层22a的端部剥离具有规定的长度，并且通过使用球墨工具3在保护层23a和防腐蚀层22b之间形成环形间隙26.防腐蚀层22a，防腐蚀构件4，保护构件5 保护层23b和防腐层22b构成该单元，同时将一端插入该间隙26中。（C）2007年，JPO和INPIT

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