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11. 发明专利

JPH1070821A POWER-CABLE DISASTER-PREVENTING SHEET AND CABLE LINE USING IT 失效
公开(公告)号：JPH1070821A
公开(公告)日：1998-03-10
申请号：JP22399896
申请日：1996-08-26
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE
发明人： TSUCHIYA SHINICHI , KURATA MAMORU , ABE KAZUTOSHI , TOMITA HIROYASU , KAKIHANA TOSHIO
IPC分类号： H02G9/00
摘要： PROBLEM TO BE SOLVED: To obtain a power-cable disaster-preventing sheet whose allowance with reference to an accident can be increased and whose application limit to an actual line is reduced by a method wherein a plurality of sleeve-shaped sheet bodies whose diameter is larger than the outside diameter of a power cable are piled up and their surface is coated with a nonflammable polyvinyl chloride or silicone rubber resin. SOLUTION: A power-cable disaster-preventing sheet 6 is formed to be a sleeve shape whose diameter (ϕ500mm) is larger than the outside diameter of a power cable 1, it is formed so as to cover the power cable 1, and it is flexible. In addition, the sheet 6 is formed in such a way that three or four sheet bodies 7 are piled up so as to be sewn together and that a coating layer 8 which is composed of a nonflammable polyvinyl chloride or silicone rubbler resin is formed on their outermost face so as to be set to an airtight state which prevents not only the circulation of the air but also the outflow of oil or smoke. Every sheet body 7 is an aramid sheet which is formed by weaving aramid fibers which are provided with high strength and with heat resistance, and its specifications are decided in such a way that its warps and its wefts are respectively at 300 deniers.

12. 发明专利

JPH1014076A PROTECTIVE COVER FOR TERMINAL CONNECTION OF POWER CABLE 失效
公开(公告)号：JPH1014076A
公开(公告)日：1998-01-16
申请号：JP17984296
申请日：1996-06-21
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE
发明人： NAKATOGAWA YUTAKA , KURATA MAMORU , ABE KAZUTOSHI , TOMITA HIROYASU , MURAKAMI JUNJI
IPC分类号： H02G15/02
摘要： PROBLEM TO BE SOLVED: To provide a protective cover for terminal connections of power cables that, if any accident occurs in proximity to a terminal connection of a power cable, prevents the members of the terminal connection and protective plate from being scattered and affecting surrounding equipment, and facilitates internal inspection. SOLUTION: A terminal connection 4 of a power cable is supported on a frame 1, and the lower part of the terminal connection is covered with a cylindrical pipe 5 made of FRP, which is formed by coupling two halves together using sockets. Bands 6 having high strength, made of aramid fiber or the like are wound around the pipe 5, and are tied up with brackets or the like. There are a plurality of the bands tied up at intervals. If a high pressure is produced due to an accident, the bands are elongated to relieve the pressure and then restored. This controls damage to the protective cover and prevents the members of the terminal connection from being scattered.

13. 发明专利

JPS57116510A METHOD OF LAYING CABLE 失效
公开(公告)号：JPS57116510A
公开(公告)日：1982-07-20
申请号：JP111781
申请日：1981-01-09
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE
发明人： TAGUCHI AKIO , MINAFUJI JIYUNICHI , SUZUKI NOBUTAKA , TOMITA HIROYASU , ANDOU YORIO
IPC分类号： H02G1/08

14. 发明专利

JPH08259112A ATTACHMENT FOR WOOD DRUM 失效
公开(公告)号：JPH08259112A
公开(公告)日：1996-10-08
申请号：JP6258295
申请日：1995-03-22
申请人： HITACHI CABLE
发明人： IKEDA YASUHIRO , TOMITA HIROYASU
IPC分类号： B65H75/02 , B65H75/14 , H01B13/00
摘要： PURPOSE: To apply a wood drum to a shaft at various outer diameters by inserting female screw-type attachments into through holes of flange plates of both sides of a wood drum, and fitting male-type attachments, which are respectively provided with a through hole, to the female screw-type attachments and disconnecting therefrom. CONSTITUTION: A wood drum 1 is formed of a cylindrical winding barrel 2 to be wound with a cable and disk-shape flanges 3a, 3b unified with both ends of the winding barrel 2. In this case, a through hole is provided at each center of both the flanges 3a, 3b, and attachments are fitted thereto. Namely, female screw-type attachments 8a, 8b and male screw-type attachments 9a, 9b to be engaged with the female screw-type attachments are arranged. The female screw-type attachments 8a, 8b are inserted into the through holes of both the flange plates 3a, 3b, and while the male screw-type attachments 9a, 9b are fitted to the female screw-type attachments. At this stage, the male screw-type attachments 9a, 9b are provided with through holes 4a, 4b.

15. 发明专利

JPS6392207A METHOD OF INSTALLING CABLE IN VERTICAL CONDUIT 失效
公开(公告)号：JPS6392207A
公开(公告)日：1988-04-22
申请号：JP23506186
申请日：1986-10-02
申请人： HITACHI CABLE
发明人： TANAKA TOSHIMITSU , TOMITA HIROYASU
IPC分类号： H02G7/00 , H02G1/02 , H02G1/06 , H02G9/00

16. 发明专利

JP2004361322A Flowing direction meter, and flow rate / flowing direction meter using optical fiber sensor 审中-公开
公开(公告)号：JP2004361322A
公开(公告)日：2004-12-24
申请号：JP2003162206
申请日：2003-06-06
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： TOMITA HIROYASU , KATO HAJIME
IPC分类号： G01P5/06 , G01P13/00 , G01P13/02
摘要： PROBLEM TO BE SOLVED: To provide a flowing direction and flow rate / flowing direction meter using an optical fiber sensor accurately detecting flowing direction in all directions without increasing the number of strain detection plates and an optical fiber type strain gauge.
SOLUTION: The meter comprises a rotation shaft 2 supported freely rotating; a flowing direction detection fin 1 for rotating by the rotation shaft 2 a specific angle along the flow of fluid; a disk shape cam member 7 having a guide plane 7f drawing a sine curve varying with the rotational angle of the rotation shaft 2; a direction strain detection plate 8 attached to the guide plane 7f of the cam member 7, slid at the tip end and fixed at the base end and elastically bending following the guide plane 7f; and the optical fiber type strain gauge 9 which is provided on the direction strain detection plate 8, generates a strain according to the bend of the direction strain detection plate 8, and detects the flowing direction from the degree of the strain.
COPYRIGHT: (C)2005,JPO&NCIPI

17. 发明专利

JPH09172711A CABLE LAYING METHOD 失效
公开(公告)号：JPH09172711A
公开(公告)日：1997-06-30
申请号：JP35484495
申请日：1995-12-18
申请人： HITACHI CABLE
发明人： TOMITA HIROYASU
IPC分类号： H02G1/06
摘要： PROBLEM TO BE SOLVED: To dispense the tension in laying a power cable, and lessen the burden added to the power cable, and making a boring machine compact, by arranging the boring machine (cable supply machine) on the way, and laying the cable. SOLUTION: A rail 3 is laid on the ceiling of a tunnel, and this rail 3 is provided with a plurality of trolleys, and power cables 1 are supported, being scattered with a cable hanging rope 4. Frames are made at fixed intervals of boring machine supporting members 9 within the tunnel, and here a boring machine is fixed with a bolt, etc. Accordingly, the power cable 1 supported, with its weight dispersed, is sent out being caught with the boring machines 8 arranged at specified intervals, and it can be extended long without adding large tension to the tip of the power cable 1. Moreover, an electric roller may be used in place of this boring machine.

18. 发明专利

JPH04138008A METHOD OF CONFIRMING POSITION OF SUBMARINE CABLE 失效
公开(公告)号：JPH04138008A
公开(公告)日：1992-05-12
申请号：JP25818190
申请日：1990-09-27
申请人： HITACHI CABLE
发明人： TOMITA HIROYASU
IPC分类号： H02G1/10 , G01S15/88 , G02B6/50
摘要： PURPOSE:To detect the position of a cable accurately at real time by receiving the acoustic waves that the acoustic wave oscillator attached at places in the length direction of the submarine cable in laying has transmitted, with the receiver mounted on a hull position surveying ship. CONSTITUTION:A laying ship advances in the arrow direction while veering away a submarine cable 1. Oscillators 5-7, which generate acoustic waves P1-P3 different in frequency, are attached in advance at proper intervals to the cable l by a buoy 12 and an acoustic device separator 11. A surveying ship 3 mounts a hull position measuring instrument 9, a depth meter 10, and an acoustic wave receiver 8, and receives the acoustic waves from the acoustic wave oscillators 5-7, and seeks the situation of the cable 1 from the direction of the acoustic waves and the strength, and enters the laying situation in a chart. After end of the measurement, the acoustic device separator 11 is operated, and by the buoyancy of the buoy 12, the acoustic wave oscillators 5-7 are surfaced to the sea level for withdrawal. Hereby, the laying condition of the cable 1 can be detected in real time.

19. 发明专利

JPS6318912A METHOD AND APPARATUS FOR CABLE INSTALLATION 失效
公开(公告)号：JPS6318912A
公开(公告)日：1988-01-26
申请号：JP16280186
申请日：1986-07-10
申请人： HITACHI CABLE
发明人： TOMITA HIROYASU
IPC分类号： B65H57/00 , H02G1/06

20. 发明专利

JPS627317A EXTENSION OF SUBMARINE CABLE 失效
公开(公告)号：JPS627317A
公开(公告)日：1987-01-14
申请号：JP14332685
申请日：1985-06-28
申请人： HITACHI CABLE
发明人： TOMITA HIROYASU
IPC分类号： H02G1/10

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