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1. 发明专利

JPS60249044A CURRENT COLLECTING WHEEL OF COATED FILM DAMAGE POSITION SEARCHING WHEEL 失效
公开(公告)号：JPS60249044A
公开(公告)日：1985-12-09
申请号：JP10446484
申请日：1984-05-25
申请人： NIPPON STEEL CORP , NITSUKEN KOUMU KK
发明人： YAMAGUCHI TOSHIO , KAWAKAMI MAKOTO , SHIMIZU OSAHISA , IIJIMA ISAO
IPC分类号： G01N27/07 , G01N27/20
摘要： PURPOSE:To improve a current collecting rate, and to search a coated film damage position with high accuracy by laminating alternately a holding plate made of an electric insulating material, and a conductive round rubber plate, and clamping and coupling them by many bolts and nuts which have been inserted through them. CONSTITUTION:A holding plate 1 made of an electric insulating material and a conductive round rubber plate 2 are laminated alternately, and on the periphery between both of them 1, 2, many metallic small pieces 3 are placed at an interval in the peripheral direction of the round rubber plate. Also, a conductor 4 for connecting each metallic small piece 3 is placed, the conductor 4 is connected to wheel inserting bearing metallic fittings 5 fixed to the center part of the holding plate 1, and each holding plate 1 and round rubber plate are clamped and coupled by a bolt 6 and a nut 7 which have been inserted over them.

2. 发明专利

JPS58138523A BEND-WORKING METHOD OF METALLIC PIPE 失效
公开(公告)号：JPS58138523A
公开(公告)日：1983-08-17
申请号：JP2104882
申请日：1982-02-15
申请人： NIPPON STEEL CORP , NITSUKEN KOUMU KK
发明人： YAMAGUCHI TOSHIO , IIJIMA ISAO
IPC分类号： B21D9/00 , B21D9/03 , B21D9/08
摘要： PURPOSE:To easily bend a metallic pipe without damaging a covering layer, by inserting a bender body into a metallic pipe body, and giving a bending moment from the inside surface of the pipe by use of plural pressing dies fitted to the bender. CONSTITUTION:A pipe bender is inserted into the inside of a metallic pipe 1 having a covering layer 20. On one side part of this bender body 2, pressing dies 3, 4 are placed, and on the other side, a pressing die 5 is placed. When a pressurized liquid is led into cylinders 7, 8 from a pressurized liquid hose 18, pistons 10, 11 are pressed and moved, also the pressing dies 3, 4 move against a return spring 14, contact with the inside surface of the metallic pipe 1, and by its reaction force, the pressing die 5 of the other side also contacts with the inside surface of the metallic pipe 1. When liquid pressure is further provided, force alpha by the pressing die 3, force beta by the pressing die 4 and force gamma by the pressing die 5 are provided to the inside surface of the metallic pipe 1, and the bender body 2 receives reaction force of said force alpha, beta and gamma. When liquid pressure is further provided to the pistons 10, 11, bend-working is performed to the metallic pipe 1 having the covering layer 20.

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