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1. 发明专利

JP2004131031A Support structure of overhead line 有权
公开(公告)号：JP2004131031A
公开(公告)日：2004-04-30
申请号：JP2002300189
申请日：2002-10-15
申请人： Railway Technical Res Inst , Sanwa Tekki Corp , 三和テッキ株式会社 , 財団法人鉄道総合技術研究所
发明人： SUZUKI AKIHIRO , SHIMADA TAKEFUMI , HAYASAKA TAKAMASA , IWAMA YUICHI , YOSHIZAWA TAKESHI , IIKUNI MOTOHISA
IPC分类号： B60M1/23
摘要： PROBLEM TO BE SOLVED: To provide a support structure of an overhead line that can improve a power collection capability by suppressing the generation of a reflected wave at a fixed point of the overhead line such as a trolley line.
SOLUTION: In the support structure of the trolley line, the overhead trolley line 11 is supported by hanging from a support structure 2 through a damper 3 at the position separated by a distance L(m) from the fixed point where the trolley line 11 is vertically fixed, in the opposite direction from the wave direction of the trolley line 11. The distance L(m) is set as formula 1, where f is the wave frequency (Hz) of the trolley line, ρ is the density (kg/m) of the trolley line, and T is the tension (N) of the trolley line.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004023824A Electric wire inspection device 有权
公开(公告)号：JP2004023824A
公开(公告)日：2004-01-22
申请号：JP2002172011
申请日：2002-06-12
申请人： Railway Technical Res Inst , 財団法人鉄道総合技術研究所
发明人： SUZUKI AKIHIRO , SATO YUSUKE , SHIMADA TAKEFUMI
IPC分类号： H02G1/02
摘要： PROBLEM TO BE SOLVED: To provide an electric wire inspection device that can inspect by attaching a relatively heavy weight inspection apparatus simply and safely to a wire in a hot-line state. SOLUTION: The electric wire inspection device 1 comprises an insulating guide rod 3 and a lift 4. The insulating guide rod 3 hangs an attachment part 2 to the overhead electric wire W and makes it droop. The lift 4 moves on the insulating guide rod 3 by itself. The inspection apparatus 17, a control part 18 and a drive power supply 19 are mounted to the lift 4. The insulating guide rod 3 is erected, the attachment part 2 is hung to the electric wire W, the lift 4 is rased, the inspection apparatus 17 is brought close to the electric wire W, and then an inspection is performed. A frame 8 of the lift 4 surrounds the insulating guide rod 3 and is openable and closable. A plurality of wheels 9 are supported to the frame 8. Two frame members 10, 11 of the frame 8 are hinged to each other at their one-side ends and clamped by clamping members 13 at the other ends so as to be releasable. The wheels 9 are press-contacted to the external periphery of the insulating guide rod 3 in a state that the frame members 10, 11 are clamped, thus making the lift 4 move up and down by a friction force. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2002207057A ELECTRIC WIRE INSPECTING DEVICE AND RESISTANCE MEASURING INSTRUMENT FOR ELECTRIC WIRE CONNECTING PART 失效
公开(公告)号：JP2002207057A
公开(公告)日：2002-07-26
申请号：JP2001001712
申请日：2001-01-09
申请人： RAILWAY TECHNICAL RES INST , SANWA TEKKI CORP
发明人： SUZUKI AKIHIRO , SATO YUSUKE , SHIMADA TAKEFUMI , IWAMA YUICHI , IIKUNI MOTOHISA
IPC分类号： G01R31/02 , G01R27/02 , G01R27/16 , G01R31/00 , H01B13/00 , H02G1/02
摘要： PROBLEM TO BE SOLVED: To provide a resistance measuring instrument for an electric wire connecting part where an electric wire can be easily attached and resistance of the electric wire connecting part can be easily measured with high accuracy in a hot line. SOLUTION: The measuring instrument 1 comprises an attachment part 2 at an upper part, an insulation rail bar 3 at a lower part, and a lift 4 that goes up and down along the insulation rail bar 3. On the attachment part 2, clamp electrodes 6 are placed at both ends of a concatenation bar 5, and a clamp meter 7 is placed at a center. On the clamp electrodes 6 opening and closing mechanisms 10 that hold an electric wire W and electric wire polishing mechanisms 11 are placed to be operated by a controlling part in the lift 4. The clamp meter 7 measures a current by holding an electric wire connecting part W1. The insulation bar 3 has a rack rail 3b in a longitudinal direction. The lift 4 has the controlling part, a voltage measuring instrument 17, and a driving mechanism. The insulation rail bar 3 is placed and the attachment part 2 is hung to be held to the electric wire connecting part W1. The lift 4 is attached to the insulation rail bar 3 to be lifted up and electrically connected to be measured, and then the resistance is calculated from the measured current voltage.

4. 发明专利

JP2002042576A ADVANCE DETECTION METHOD OF OVERHEAT DISCONNECTION IN VICINITY OF COMPRESSION CONNECTED PART OF ALUMINUM TWISTED WIRE 失效
公开(公告)号：JP2002042576A
公开(公告)日：2002-02-08
申请号：JP2000223432
申请日：2000-07-25
申请人： RAILWAY TECHNICAL RES INST
发明人： SUZUKI AKIHIRO , SATO YUSUKE , SHIMADA TAKEFUMI
IPC分类号： H01B7/32 , B60M1/12
摘要： PROBLEM TO BE SOLVED: To provide a method of surely and effectively detecting overheat of each aluminum strand of a compression connected part in the vicinity of an aluminum twisted wire, which is caused by electric resistance. SOLUTION: The aluminum twisted wire 1 and a branch line 2 connected to the wire 1 are covered with an aluminum compression pipe 3, and which are compressed and connected to be combined into an aluminum compression pipe 3. Around a periphery of the wire 1 in the vicinity of one end of the pipe 3, a detective band 11 consisting of a low melting point material is worn. The band 11 melts to be cut when the strand 4 of a most external layer of the wire 1 is overheated, therefore overheat of the wire 1 is detected with this as a turning point. The band 11 comes in contact with many strands 4 of the most external layer, thereby watching overheat of each strand 4. With regard to mounting position of the band 11 to the wire 1, the position which is 5-10 cm apart from one end of the pipe 3 where temperature rise of the strand 4 is easy to occur intensively, is suitable. The band 11 is made of a synthetic resin the melting point of which is 70-150 deg.C.

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