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1. 发明专利

JP2007278474A Branch joint and its construction method 审中-公开
标题翻译：分支接头及其施工方法
公开(公告)号：JP2007278474A
公开(公告)日：2007-10-25
申请号：JP2006109018
申请日：2006-04-11
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： TSUTSUMI CHIAKI , YONEDA SHINJI , TERANUMA TAKASHI
IPC分类号： F16L41/02 , F16L41/08
摘要： PROBLEM TO BE SOLVED: To provide a branch joint capable of withstanding a fire or outdoor environment, and its construction method.
SOLUTION: The branch joint comprises a saddle body 2 on one side and a saddle body 3 on the other side fastened to the outer peripheral surface of a main pipe. The saddle body 2 on one side can be in communication with the main pipe. The inner peripheral surface 26, straddling the main pipe, of the saddle body 2 on one side is provided with a branch part connected to a branch pipe leading to the inner peripheral surface 26, and a seal member 5 brought into close contact with the main pipe is fittingly mounted to the inner peripheral surface 26. A thermally expansible flame-resisting rubber material containing 55% aluminum hydroxide at least which is heat resistant putty containing expanded graphite, is applied onto the inner peripheral surface 26.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够承受火灾或室外环境的分支接头及其施工方法。解决方案：分支接头包括一侧的鞍座体2和固定在主管的外周面的另一侧的鞍座体3。一侧的马鞍体2可以与主管连通。在一侧的鞍座体2的跨越主管的内周面26设有与通向内周面26的分支管连接的分支部，与主体紧密接触的密封部件5 管被适当地安装到内周面26上。含有55％氢氧化铝的热膨胀性阻燃橡胶材料至少是含有膨胀石墨的耐热油灰被施加到内周面26上。 C）2008，JPO＆INPIT

2. 发明专利

JP2010249258A Fire-resistant pipe joint 有权
标题翻译：防火管接头
公开(公告)号：JP2010249258A
公开(公告)日：2010-11-04
申请号：JP2009100450
申请日：2009-04-17
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： MORISHITA TERUMASA , YONEDA SHINJI , SAKAMOTO KATSUMI , SATO FUMITAKA
IPC分类号： F16L19/08 , F16L21/08
摘要： PROBLEM TO BE SOLVED: To provide a fire-resistant pipe joint, capable of maintaining airtight sealing property in exposure to high temperature even when combustible gas is supplied under a middle pressure. SOLUTION: The pipe joint 1 includes a joint body 10 into which the end of a pipe P to connect is inserted, a fire-resistant expansion packing 37, and an expansion regulation means 45 which regulates the expansion of the packing 37 which expands to the gap between the outer circumferential surface of the pipe P and the pipe joint 1. When the pipe joint 1 is exposed to high temperature, the expansion regulation means 45 suppresses the expansion of the packing 37 to prevent the packing 37 from being thinned. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种耐火管接头，即使在中等压力下供应可燃气体的情况下，也能够在高温下保持气密密封性。解决方案：管接头1包括：插入管P的端部的接头体10，防火膨胀填料37和膨胀调节装置45，膨胀调节装置45调节填料37的膨胀，膨胀到管P的外周面与管接头1之间的间隙。当管接头1暴露于高温时，膨胀调节装置45抑制填料37的膨胀，以防止填料37变薄。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010053974A Mechanical pipe joint 审中-公开
标题翻译：机械管接头
公开(公告)号：JP2010053974A
公开(公告)日：2010-03-11
申请号：JP2008220322
申请日：2008-08-28
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： ITANI TAKAAKI , YONEDA SHINJI , ARAKI SATORU
IPC分类号： F16L19/08
摘要： PROBLEM TO BE SOLVED: To provide a mechanical pipe joint capable of mitigating fastening torque of a nut while securing reliable sealing performance.
SOLUTION: The mechanical joint 1 comprises a joint body 10 inserted with an end part of a pipe P to be connected, the nut 20 screwed to the joint body 10 and formed with an inner peripheral tapered surface 23 with its diameter extending toward the joint body 10 side on its inner peripheral surface, a slip-off stopping member 40 biting into an outer peripheral surface of the pipe P by fastening action of the nut 20, and a packing 30 pressed to an end-part inner surface of the joint body 10 and the outer peripheral surface of the pipe P. The nut 20 internally comprises a rotation collar 50 having tapered surfaces along the inner peripheral tapered surface 23 on the inner/outer surfaces and arranged to be rotatable to the nut 20.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够在确保可靠的密封性能的同时减轻螺母的紧固扭矩的机械管接头。解决方案：机械接头1包括插入有要连接的管P的端部的接头体10，螺母20连接到接头本体10并形成有内周锥形表面23，其内径向着在其内周面上的接头体10侧，通过螺母20的紧固动作而咬入管P的外周面的脱落止动构件40以及被压到该螺母20的端部内表面的衬垫30 接头主体10和管P的外周面。螺母20内部包括旋转轴环50，该旋转轴环50具有沿内周锥形表面23在内表面和外表面上的锥形表面，并且布置成可旋转到螺母20.
版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2008185117A Closing cock device 审中-公开
标题翻译：关闭装置
公开(公告)号：JP2008185117A
公开(公告)日：2008-08-14
申请号：JP2007018716
申请日：2007-01-30
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： TSUTSUMI CHIAKI , YONEDA SHINJI , ARAKI SATORU , SATAKE YUKINOBU , ISHIKAWA MOTOMICHI
IPC分类号： F16K5/22 , F16K3/24 , F16K5/04 , F16K43/00
摘要： PROBLEM TO BE SOLVED: To provide a closing cock device wherein a valve element has reduced operating torque while solving problems with a conventional closing cock device.
SOLUTION: The closing cock device 1 comprises a cylindrical turning member 3 for opening/closing the flow of gas, and a case 2 for slidably holding it. The turning member 3 consists of the cylindrical valve element 30 having communication ports 31a, 31b, a lining layer 32 of an elastic material fixed onto the outer peripheral face thereof, and lubricant applied on the surface thereof. In the surface of the lining layer 32, a V-groove 321 is formed for holding the lubricant. The V-groove 321 is formed longer than each of the communication ports 31a, 31b and arranged symmetrically around the axis of rotation of the valve element 30.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种关闭旋塞装置，其中阀元件具有降低的操作扭矩，同时解决常规关闭旋塞装置的问题。解决方案：闭合旋塞装置1包括用于打开/关闭气体流动的圆柱形转动构件3和用于可滑动地保持气体的壳体2。转动构件3由具有连通口31a，31b，固定在其外周面上的弹性材料的衬里层32和施加在其表面上的润滑剂的圆柱形阀元件30组成。在衬里层32的表面形成有用于保持润滑剂的V形槽321。 V形槽321形成为比每个连通口31a，31b长并且围绕阀元件30的旋转轴线对称地布置。（C）2008年，JPO和INPIT

5. 发明专利

JP2002228063A STOPPER FOR PIPE JOINT, AND PIPE JOINT USING THE SAME 审中-公开
公开(公告)号：JP2002228063A
公开(公告)日：2002-08-14
申请号：JP2001253895
申请日：2001-08-24
申请人： HITACHI METALS LTD , TOKYO GAS CO LTD
发明人： TSUTSUMI CHIAKI , YONEDA SHINJI , OKUBO ATSUSHI , MINAMI TOMOYUKI , SATO FUMITAKA
IPC分类号： F16L19/08
摘要： PROBLEM TO BE SOLVED: To provide stoppers for pipe joint capable of sufficient extraction preventive force without peeling a resin-covered layer even in an outer surface resin covered steel pipe, and a pipe joint. SOLUTION: In stoppers 30 and 60 and pipe joints 1 and 52 using the stoppers which are accommodated in an inclined inner surface 24 of the joint having the diameter gradually smaller toward the insertion port side of a pipe, and locked to an outer face of a connection pipe 11 to prevent extraction of the pipe fitted in the joint, a large number of biting teeth 33 and 63 are protruded on an inner circumferential surface of a C-shaped ring-like member having a notch in a part of the circumference on the axial side with appropriate intervals in the circumferential and axial directions so that the stoppers are contracted by the wedge effect by the inclined inner surface 24 of the joint to prevent extraction of the connection pipe. The stoppers for pipe joint comprise an inner stopper member 61 having a large number of biting teeth with appropriate intervals in the circumferential and axial directions on the inner circumferential surface, and provided with notches in a part of the circumference direction and a holder member 62 covering the inner stopper member, abutted on the inclined inner surface of the joint, and having a notch in a part of the circumference.

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