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1. 发明专利

JP2000263160A FORMING DEVICE OF METAL TUBE 失效
公开(公告)号：JP2000263160A
公开(公告)日：2000-09-26
申请号：JP6603799
申请日：1999-03-12
申请人： MATSUSAKA TEKKOSHO KK , HITACHI METALS LTD
发明人： MAEDA TATSUO , NIBU HITOSHI , SAIGO HIDEKAZU
IPC分类号： B21D39/04 , B21D39/20
摘要： PROBLEM TO BE SOLVED: To dispense with a rust preventive treatment by hardly causing a scratch and to form a metal tube by a simple way and at a low cost by providing a device consisting of an insert shaft part forming a fit part to engage the end part of a metal tube to be fitted, plural forming shoes for metal tube working retractably outward arranged in the insert shaft part and a copying inclined face to retract the forming die. SOLUTION: A joint J is fitted in the tip of a metal tube M so that a reduced part S of the joint J is abutted on an engaging part 5. An insert shaft part 3 is fitted up to the opening of the metal tube M to be engaged to the engaging part 4. When a hydraulic pressure is supplied from a piping 9, a piston 8b as well as a conical part 7a are moved rightward, a forming shoe is pushed out in the outer diameter direction of the insert shaft part 3 by moving a copying inclined face, the metal tube M is effectively pressurized without generating variance in thickness decrease, etc. When the piston 8b is retracted to a max, a protrusion quantity of a mountain shaped protrusion 6c is made max, a bulged part is formed. The bulged part is positioned in an expanded recessed part H, the joint J and the metal.

2. 发明专利

JP2006007351A Connecting tool for piping 审中-公开
标题翻译：连接工具
公开(公告)号：JP2006007351A
公开(公告)日：2006-01-12
申请号：JP2004185967
申请日：2004-06-24
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： SAIGO HIDEKAZU , OYA HIROSHI
IPC分类号： B25B27/10
CPC分类号： B25B27/10
摘要： PROBLEM TO BE SOLVED: To provide a connecting tool for piping, quickly connecting a header and a resin pipe constituting a wall piping.
SOLUTION: This connecting tool 1 for piping includes: a fixed holder 31 having a fork part 311 and a base part 312; a movable holder 32 having a fork part 321 and a base part 322; a grip part 2 supporting the base part 312 of the fixed holder 31; a regulating member 4 for supporting the base part 322 of the movable holder 32 and regulating the space between the movable holder 32 and the fixed holder 31; a driving member 5 for driving the regulating member 4; and a lever member 6 for operating the driving member 5. The fixed holder 31 and the movable holder 32 are formed so that the base parts 312 and 322 are inclined to the fork parts 311 and 321 in a plane orthogonal to the moving direction of the movable holder.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供用于管道的连接工具，快速连接构成壁管道的集管和树脂管。解决方案：用于管道的连接工具1包括：具有叉部311和基部312的固定保持器31; 具有叉部321和基部322的可动保持器32; 支撑固定支架31的基部312的把持部2; 调节构件4，用于支撑可移动保持器32的基部322并调节可动保持器32和固定保持器31之间的空间; 用于驱动调节构件4的驱动构件5; 以及用于操作驱动构件5的杆构件6.固定保持器31和可动保持器32形成为使得基部312和322在与叉部311和321的移动方向正交的平面中相对于叉部311和321倾斜活动支架版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2001355759A METHOD OF BRANCHING PIPE 失效
公开(公告)号：JP2001355759A
公开(公告)日：2001-12-26
申请号：JP2000176387
申请日：2000-06-13
申请人： HITACHI METALS LTD
发明人： NIBU HITOSHI , ISHIBE FUMIKAZU , KOMIYA MICHITSUGU , SAIGO HIDEKAZU
IPC分类号： E03B7/00 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide a method of branching pipes allowing branching of a pipe by minimizing a excavating size from the ground, and economically branching a supply pipe from the underground buried pipes for such as city water and gas in a short working period. SOLUTION: In this branching method, a resin branch pipe is inserted from the ground into a buried resin main pipe, the resin branch pipe is pressed against the side surface of the resin main pipe and rotated to fuse them with each other by a friction heat, a drilling device is inserted into the fused branch pipe and a branch hole is drilled in the main pipe, and the branch pipe is branched from the main pipe. A resin joint is connected to the end of the resin branch pipe, and rotated by pressing the resin joint against the main pipe. A closed surface can be provided at the end of the resin joint, a projected part projecting in an axial direction can be provided on the closed surface, and an extension part can be provided at the end part.

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