JP2015038816A - Fuse attachment tool - Google Patents

Fuse attachment tool Download PDF

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Publication number
JP2015038816A
JP2015038816A JP2013021333A JP2013021333A JP2015038816A JP 2015038816 A JP2015038816 A JP 2015038816A JP 2013021333 A JP2013021333 A JP 2013021333A JP 2013021333 A JP2013021333 A JP 2013021333A JP 2015038816 A JP2015038816 A JP 2015038816A
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Japan
Prior art keywords
fuse
tension applying
locking
mounting tool
lead wire
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JP2013021333A
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Japanese (ja)
Inventor
優 竹味
Yu Takemi
優 竹味
淳 ▲桑▼田
淳 ▲桑▼田
Atsushi Kuwata
司 山廣
Tsukasa Yamahiro
司 山廣
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Priority to JP2013021333A priority Critical patent/JP2015038816A/en
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Abstract

PROBLEM TO BE SOLVED: To obtain a tool for facilitating the fuse attachment work, that is performed while bringing the lead wire of a fuse with lead wire, built in a cutout device, into state of tension.SOLUTION: A first locking part 2 being locked to the elastic receiving part of a fuse device is provided, and a second locking part 3 being locked to the tensioning part of the fuse device is provided. The first locking part 2 is locked to the elastic receiving part, and the second locking part 3 is locked to the tensioning part so that the elastic member of the fuse device is prestressed while forming a predetermined gap by the elastic receiving part of the fuse device and the tensioning part.

Description

本発明は、過電流が発生した場合に、負荷側に対して、回路を遮断する過電流保護装置（例えば、カットアウト装置）に内設されるヒューズ装置に、リード線付きヒューズ（以下、単にヒューズという場合もある。）のリード線を緊張状態にロックしてセットするためのヒューズ取付用工具に関する。   According to the present invention, when an overcurrent occurs, a fuse with a lead wire (hereinafter simply referred to as a fuse device installed in an overcurrent protection device (for example, a cutout device) that cuts off the circuit with respect to the load side is simply provided. This is also related to a fuse mounting tool for locking and setting a lead wire in a tension state.

商用電源側電線には、負荷装置に応じた電圧を供給するために変圧器が設置されている。この変圧器の商用電源側には、落雷や電路の短絡等により発生した過電流を遮断して負荷装置を保護するための過電流保護装置が設けられているのが一般的である。   A transformer is installed on the commercial power supply side electric wire in order to supply a voltage corresponding to the load device. In general, an overcurrent protection device is provided on the commercial power supply side of the transformer to protect the load device by interrupting overcurrent generated by lightning strikes or short circuiting.

過電流保護装置としては、例えば、図１０に示す箱型のカットアウト装置５０や、図１２に示す円筒型のカットアウト装置８０が多用されている（特許文献１，２参照）。そして、これらカットアウト装置５０，８０には、それぞれに対応した図１１および図１３に示すヒューズ装置６０，９０が内設されている。いずれのヒューズ装置６０，９０にも、前記過電流を遮断する具体的な手段として、リード線７２を溶断できるように、リード線付きヒューズ７０がセットされている（図１１（ａ）および図１３（ｂ）参照）。いずれのヒューズ装置６０，９０も、ヒューズ７０のリード線７２を遮断することで、電源側と負荷側との電気的導通を遮断して、負荷側装置を保護するように構成されている。   For example, a box-shaped cutout device 50 shown in FIG. 10 and a cylindrical cutout device 80 shown in FIG. 12 are frequently used as the overcurrent protection device (see Patent Documents 1 and 2). The cut-out devices 50 and 80 are provided with fuse devices 60 and 90 shown in FIGS. 11 and 13 corresponding to the cut-out devices 50 and 80, respectively. In any of the fuse devices 60 and 90, as a specific means for interrupting the overcurrent, a fuse 70 with a lead wire is set so that the lead wire 72 can be blown (FIGS. 11A and 13). (See (b)). Both of the fuse devices 60 and 90 are configured to protect the load side device by interrupting the electrical connection between the power source side and the load side by interrupting the lead wire 72 of the fuse 70.

箱型のカットアウト装置５０は、図１０に示すように、一面側が開放された箱型に形成されている磁器製の本体部５１と、この本体部５１の開放面を閉塞可能な蓋状に形成された磁器製の蓋体部５２とを有している。   As shown in FIG. 10, the box-shaped cutout device 50 has a porcelain main body 51 formed in a box shape with one side open, and a lid that can close the open surface of the main body 51. And a porcelain lid 52 formed.

本体部５１は、取付金具１００により、図示しない電柱の変圧器の近傍に設置されている。そして、本体部５１は、商用電源の配電線から分岐させた引き下げ線を接続する電源接続部５１０と、前記変圧器からの電線を接続する負荷接続部５１１とを備えている。   The main body 51 is installed in the vicinity of a power pole transformer (not shown) by means of a mounting bracket 100. And the main-body part 51 is equipped with the power supply connection part 510 which connects the pull-down line branched from the distribution line of the commercial power supply, and the load connection part 511 which connects the electric wire from the said transformer.

蓋体部５２は、本体部５１の開放面の一側辺側に設けられた回動軸５２ａにより回動自在に連結軸支されている。また、本体部５１の電源接続部５１０および負荷接続部５１１に導通刃６２，６２を導通接触させて電力供給を確保するとともに、過電流が発生した場合に、該過電流を遮断するヒューズ装置６０を着脱できるようになっている。   The lid body portion 52 is pivotally connected to and supported by a rotation shaft 52 a provided on one side of the open surface of the main body portion 51. In addition, the fuse blades 60, 62 are brought into conductive contact with the power supply connection portion 510 and the load connection portion 511 of the main body 51 to ensure power supply, and when an overcurrent occurs, a fuse device 60 that cuts off the overcurrent. Can be removed.

なお、図中の符号５３は、負荷接続部５１１に一端を導通接続させているバリスタ（ＺｎＯ２）素子である。また、図中の符号５４は、対向電極プレートである。該対向電極プレート５４は、取付金具１００に導通するとともに、バリスタ素子５３の他端部の端子との間にエアーギャップを形成し、配電線に落雷等があった場合に、バリスタ素子５３との間で放電を発生させて落雷を地面に逃がすとともに、その放電電圧をバリスタ素子５３により高く維持して商用電源からの電力により続流が生じることを防止する。   Reference numeral 53 in the figure denotes a varistor (ZnO 2) element having one end electrically connected to the load connection portion 511. Moreover, the code | symbol 54 in a figure is a counter electrode plate. The counter electrode plate 54 is electrically connected to the mounting bracket 100 and forms an air gap with the terminal at the other end of the varistor element 53. When there is a lightning strike or the like on the distribution line, A discharge is generated between them, and a lightning strike is released to the ground, and the discharge voltage is maintained high by the varistor element 53 to prevent a continuity from being generated by the power from the commercial power source.

ヒューズ装置６０は、図１１（ａ）〜（ｃ）に示すように、筒状の収容部６１と、該収容部６１の周面に、収容部６１の長さ方向に対して直交方向に取り付けられ、後述するリード線付きヒューズ７０によって導通される一対の導通刃６２，６２と、収容部６１の一端側の開口部６１ａを閉塞するように設けられ、ヒューズ７０の端子７１に電気的に接続される一方の電極部６３と、収容部６１の先端部に、ヒューズ７０のリード線７２に対して張力を付与する弾性部材６５が内設される、収容部６１よりも大径の弾性受け部６４と、該弾性受け部６４に対して進退自在に遊挿される円筒状の張力付与部６６と、収容部６１に設けられ、弾性部材６５が蓄勢された状態の張力付与部６６に引っ掛けられた、ヒューズ７０のリード線７２が電気的に接続される他方の電極部６７とを備えている。そして、張力付与部６６は、先端部が斜めに切断され、楕円形状の開口部６６ａが形成されている。この開口部６６ａから後述するヒューズのリード線が引き出される。また、開口部６６ａは、楕円形状であることから、短軸方向に低部６６ｂが形成され、長軸方向に高部６６ｃが形成されている。そして、張力付与部６６の低部６６ｂは、導電刃６２，６２側に位置し、高部６６ｃは、導電刃６２，６２とは反対側に位置している。また、低部６６ｂには、軸線に平行して切欠き溝が形成されている。   As shown in FIGS. 11A to 11C, the fuse device 60 is attached to the cylindrical housing portion 61 and the circumferential surface of the housing portion 61 in a direction orthogonal to the length direction of the housing portion 61. And is provided so as to close a pair of conductive blades 62 and 62 that are conducted by a fuse 70 with a lead wire, which will be described later, and an opening 61 a on one end side of the accommodating portion 61, and is electrically connected to a terminal 71 of the fuse 70. The elastic receiving portion 65 having a diameter larger than that of the accommodating portion 61 is provided inside the one electrode portion 63 and the distal end portion of the accommodating portion 61, and an elastic member 65 that applies tension to the lead wire 72 of the fuse 70 is provided therein 64, a cylindrical tension applying portion 66 which is loosely inserted into the elastic receiving portion 64 so as to freely move back and forth, and a tension applying portion 66 which is provided in the housing portion 61 and in which the elastic member 65 is stored. The lead wire 72 of the fuse 70 is electrically And a second electrode portion 67 to be connected to. And the tension | tensile_strength provision part 66 cut | disconnects the front-end | tip part diagonally, and the elliptical-shaped opening part 66a is formed. A lead wire of a fuse to be described later is drawn out from the opening 66a. Moreover, since the opening part 66a is elliptical shape, the low part 66b is formed in the short axis direction, and the high part 66c is formed in the long axis direction. And the low part 66b of the tension | tensile_strength provision part 66 is located in the conductive blades 62 and 62 side, and the high part 66c is located in the opposite side to the conductive blades 62 and 62. FIG. In addition, a notch groove is formed in the low portion 66b in parallel with the axis.

弾性受け部６４は、収容部６１の側面に固装された小径部６４ａと、収容部６１に外装された弾性部材（圧縮スプリング）１８が内設される大径部６４ｂとを有している。そして、小径部６４ａと大径部６４ｂとの境界部に段部６４ｃが形成されている。そして、張力付与部６６は、弾性部材６５により進出方向に常時付勢されている。   The elastic receiving portion 64 has a small-diameter portion 64a fixedly mounted on the side surface of the accommodating portion 61, and a large-diameter portion 64b in which an elastic member (compression spring) 18 provided on the accommodating portion 61 is provided. . And the step part 64c is formed in the boundary part of the small diameter part 64a and the large diameter part 64b. And the tension | tensile_strength provision part 66 is always urged | biased by the elastic member 65 in the advancing direction.

収容部６１の他端側の端部には、収容部６１の軸孔６１ｂと連通する連通孔６１ｃが形成された略環状の導通部材６１０が取り付けられている。そして、この導通部材６１０に導通刃６２，６２が導通接続されるとともに、連通孔６１ｃの開口端がキャップ６１１によって閉塞されている。また、弾性受け部６４の側面には、導通刃６２，６２に導通接続される導電板６１２が取り付けられている。該導通板６１２には、締付座金６１３に挿通された締付ねじ６１４が螺合している。そして、ヒューズ７０のリード線７２が締付座金６１３および締付ねじ６１４によってねじ止めされる。   A substantially annular conducting member 610 in which a communication hole 61 c communicating with the shaft hole 61 b of the housing part 61 is formed is attached to the other end of the housing part 61. The conductive blades 62 and 62 are conductively connected to the conductive member 610, and the open end of the communication hole 61 c is closed by the cap 611. A conductive plate 612 that is conductively connected to the conductive blades 62, 62 is attached to the side surface of the elastic receiving portion 64. A fastening screw 614 inserted through a fastening washer 613 is screwed into the conduction plate 612. Then, the lead wire 72 of the fuse 70 is screwed by the fastening washer 613 and the fastening screw 614.

リード線付きヒューズ７０は、図１１（ａ）に示すように、筒体７０ａと、該筒体７０ａの一端部の開口部を閉塞するように設けられる端子７１と、該端子７１に電気的に接続されるとともに、筒体７０ａの他端部の開口部から導出されるリード線７２とを備えている。そして、ヒューズ７０は、ヒューズ装置６０のキャップ６１１を外して，収容部６１の軸孔６１ｂに差し込まれる。この際、図１１（ｃ）に示すように、ヒューズ７０の端子７１が、導通部材６１０の開口端周縁とキャップ６１１との間に挟み込まれることで、導通刃６２，６２に電気的に接続される。また、ヒューズ７０のリード線７２は、収容部６１の軸孔６１ｂを介して張力付与部６６の開口部６６ａから外部に引き出されている。そして、引き出されたヒューズ７０のリード線７２は、張力付与部６６の低部６６ｂの切欠き溝６６ｄに引っ掛けられて折り返され、弾性部材６５を圧縮（蓄勢）しつつ、導通板６１２にねじ止めされる。このため、ねじ止めされたヒューズ７０のリード線７２は、圧縮された弾性部材６５により張力が付与されて、緊張状態にロックされる。一方、本体部５１の開放面側が蓋体部５２で閉じられた場合は、それぞれの導通刃６２，６２が、ヒューズ７０の端子７１およびリード線７２によって導通接続される。   As shown in FIG. 11A, the fuse 70 with lead wire is electrically connected to the cylindrical body 70a, a terminal 71 provided so as to close an opening at one end of the cylindrical body 70a, and the terminal 71. And a lead wire 72 led out from the opening at the other end of the cylindrical body 70a. Then, the fuse 70 is inserted into the shaft hole 61 b of the housing portion 61 by removing the cap 611 of the fuse device 60. At this time, as shown in FIG. 11C, the terminal 71 of the fuse 70 is electrically connected to the conductive blades 62 and 62 by being sandwiched between the opening edge periphery of the conductive member 610 and the cap 611. The Further, the lead wire 72 of the fuse 70 is drawn out from the opening 66 a of the tension applying unit 66 through the shaft hole 61 b of the housing unit 61. Then, the lead wire 72 of the drawn fuse 70 is hooked into the notch groove 66d of the lower portion 66b of the tension applying portion 66 and turned back, and the elastic member 65 is compressed (accumulated) and screwed to the conductive plate 612. Stopped. For this reason, the lead wire 72 of the screw 70 that is screwed is applied with tension by the compressed elastic member 65 and is locked in a tension state. On the other hand, when the open surface side of the main body 51 is closed by the lid body 52, the conductive blades 62 and 62 are conductively connected by the terminal 71 and the lead wire 72 of the fuse 70.

そして、図１０に示す箱形のカットアウト装置５０は、落雷や電路の短絡等により変圧器容量を超える過電流が発生した場合、緊張状態にロックされた、ヒューズ装置６０のヒューズ７０のリード線７２が、過電流により溶断されて、前記ロックが解除される。すなわち、張力付与部６６が弾性部材６５の放勢力によって、弾性受け部６４から離間する方向へ移動する。これにより、電源接続部５１０と負荷接続部５１１との間の導通が遮断され、落雷や電路の短絡等による過電流から負荷装置が保護される。   The box-shaped cutout device 50 shown in FIG. 10 has a lead wire for the fuse 70 of the fuse device 60 that is locked in a tension state when an overcurrent exceeding the transformer capacity occurs due to a lightning strike or a short circuit of an electric circuit. 72 is melted by overcurrent, and the lock is released. That is, the tension applying portion 66 moves in a direction away from the elastic receiving portion 64 by the releasing force of the elastic member 65. Thereby, the continuity between the power supply connection part 510 and the load connection part 511 is interrupted, and the load device is protected from an overcurrent caused by a lightning strike or a short circuit of the electric circuit.

また、図１２に示す円筒型のカットアウト装置８０は、本体碍子８１に、後述するヒューズ装置９０が着脱可能に装着される。該ヒューズ装置９０は、図１３（ａ）および図１４（ａ），（ｂ）に示すように、絶縁体からなる筒状の収容部９１と、該収容部９１の上部に導電性キャップ９２を介して螺合される上部電極９３と、収容部９１の中途部に軸方向に移動可能に外挿された下部電極としての張力付与部９４と、収容部９１の下端に螺合され、張力付与部９４に対向する面に環状の弾性受け座９５ａが形成される表示筒としての弾性受け部９５と、張力付与部９４と弾性受け部９５との間の収容部９１に外挿され、張力付与部９５が弾性受け部９５から離間する方向に弾性付勢する弾性部材９６とを備えている。そして、図１３（ｂ）に示すリード線付きヒューズ７０が未装着時には、弾性部材９６の放勢力によって、張力付与部９４が収容部９１の上方へ向かって弾性付勢され、収容部９１の中途部に形成された係止段部９１ａに当接される。そして、張力付与部９４は、ヒューズ７０のリード線７２をねじ止めする締め付けねじ９４ａが螺合している。また、弾性受け部９５は、円筒状を呈しており、先端部の開口部９５ｂから、ヒューズ７０のリード線７２が引き出される。また、開口部９５ｂには、軸線に平行して切欠き溝９５ｃが形成されている。該切欠き溝９５ｃには、引き出されたヒューズ７０のリード線７２が引っ掛けられて折り返される。   Further, in the cylindrical cutout device 80 shown in FIG. 12, a fuse device 90 described later is detachably attached to the main body insulator 81. As shown in FIG. 13A and FIGS. 14A and 14B, the fuse device 90 includes a cylindrical housing portion 91 made of an insulator and a conductive cap 92 on the top of the housing portion 91. An upper electrode 93 screwed through, a tension applying portion 94 as a lower electrode externally movably inserted in the middle portion of the accommodating portion 91, and a lower end of the accommodating portion 91 being screwed into the tension applying portion An elastic receiving portion 95 as a display cylinder in which a ring-shaped elastic receiving seat 95a is formed on the surface facing the portion 94, and an accommodating portion 91 between the tension applying portion 94 and the elastic receiving portion 95 are extrapolated and applied with tension. The portion 95 includes an elastic member 96 that is elastically biased in a direction away from the elastic receiving portion 95. Then, when the lead wire fuse 70 shown in FIG. 13B is not attached, the tension applying portion 94 is elastically biased upward of the housing portion 91 by the releasing force of the elastic member 96, and the housing portion 91 is halfway. It abuts on a locking step 91a formed on the portion. The tension applying portion 94 is screwed with a tightening screw 94 a that screws the lead wire 72 of the fuse 70. The elastic receiving portion 95 has a cylindrical shape, and the lead wire 72 of the fuse 70 is drawn out from the opening 95b at the tip. Further, a notch groove 95c is formed in the opening 95b in parallel with the axis. The lead wire 72 of the extracted fuse 70 is hooked into the cutout groove 95c and folded back.

そして、収容部９１の軸孔９１ｂにヒューズ７０を装填する場合は、まず、導電性キャップ９２に螺合された上部電極９３を外して、図１３（ａ）に示すように、ヒューズ７０の端子７１を、導電性キャップ９２と上部電極９３との間に挟み込んで、ヒューズ７０の端子７１と上部電極９３とを電気的に接続する。つぎに、ヒューズ７０のリード線７２を、収容部９１の軸孔９１ｂを介して弾性受け部９５の開口部９５ｂから引き出す。さらに、図１４（ａ）に示すように、引き出したリード線７２を、弾性受け部９５の切欠き溝９５ｃに引っ掛けて折り返し、弾性部材９６を圧縮状態（蓄勢状態）にしつつ、下部電極としての張力付与部９４にねじ止めする（図１４（ｂ）参照）。これにより、上部電極９３と、下部電極としての張力付与部９４とが、ヒューズ７０によって導通接続される。   When the fuse 70 is loaded in the shaft hole 91b of the housing portion 91, first, the upper electrode 93 screwed into the conductive cap 92 is removed, and the terminal of the fuse 70 is removed as shown in FIG. 71 is sandwiched between the conductive cap 92 and the upper electrode 93 to electrically connect the terminal 71 of the fuse 70 and the upper electrode 93. Next, the lead wire 72 of the fuse 70 is pulled out from the opening 95 b of the elastic receiving portion 95 through the shaft hole 91 b of the housing portion 91. Further, as shown in FIG. 14 (a), the lead wire 72 drawn out is hooked on the notch groove 95c of the elastic receiving portion 95 and turned back to make the elastic member 96 in a compressed state (accumulated state) as a lower electrode. The tension applying portion 94 is screwed (see FIG. 14B). Thereby, the upper electrode 93 and the tension applying portion 94 as the lower electrode are conductively connected by the fuse 70.

この際、ねじ止めされたヒューズ７０のリード線７２は、蓄勢された弾性部材９６によって張力が付与されて、緊張状態にロックされる一方、弾性受け部９５は、蓄勢された弾性部材９６の弾性力により、張力付与部９４に対して離間する方向に付勢された状態で保持される（逆に、張力付与部９４は、蓄勢された弾性部材９６の弾性力により弾性受け部９５に対して離間する方向に付勢された状態で保持される）。   At this time, the lead wire 72 of the screw 70 that is screwed is tensioned by the stored elastic member 96 and locked in a tension state, while the elastic receiving portion 95 is stored in the stored elastic member 96. Is held in a state of being biased in a direction away from the tension applying portion 94 (in contrast, the tension applying portion 94 is elastically received by the elastic force of the accumulated elastic member 96. Are held in a state of being biased in a direction away from each other).

そして、ヒューズ７０をセットしたヒューズ装置９０が本体碍子８１に装着されることで、ヒューズ装置９０の上部電極９３および下部電極としての張力付与部９４は、各々本体碍子８１に内設された上部固定電極８２および下部固定電極８３と電気的に接続される。   When the fuse device 90 in which the fuse 70 is set is mounted on the main body insulator 81, the upper electrode 93 and the tension applying portion 94 as the lower electrode of the fuse device 90 are respectively fixed to the upper portion of the main body insulator 81. The electrode 82 and the lower fixed electrode 83 are electrically connected.

そして、図１２に示す円筒型のカットアウト装置８０は、落雷や電路の短絡等により変圧器容量を超える過電流が発生した場合、緊張状態にロックされた、ヒューズ装置９０のヒューズ７０のリード線７２が、過電流により溶断されて、前記ロックが解除される。すなわち、弾性部材９６の放勢力により、弾性受け部９５および収容部９１が張力付与部９４から離間する下方向に移動し、これに伴い、カットアウト装置８０の上部固定電極８２から、ヒューズ装置９０の上部電極９３が外れる。これにより、電源接続部５と負荷接続部６との電気的導通が遮断され、落雷や電路の短絡等による過電流から負荷装置が保護される。一方、本体碍子８１の下端に設けられたはかま部材８４に装着されている密閉栓８５に、ヒューズ装置９０の弾性受け部（表示筒）９５が衝突して外部に露出する。これにより、カットアウト装置８０のヒューズ７０が溶断したことが外部に報知される。この際、ヒューズ装置９０の張力付与部９４に対する収容部９１の下方側への移動は、ヒューズ装置９０の収容部９１の係止段部９１ａに張力付与部９４が当接することにより規制される。   The cylindrical cutout device 80 shown in FIG. 12 has a lead wire for the fuse 70 of the fuse device 90 that is locked in a tension state when an overcurrent exceeding the transformer capacity is generated due to a lightning strike or a short circuit. 72 is melted by overcurrent, and the lock is released. That is, the elastic receiving portion 95 and the accommodating portion 91 are moved downwardly away from the tension applying portion 94 by the releasing force of the elastic member 96, and accordingly, the fuse device 90 is moved from the upper fixed electrode 82 of the cutout device 80. The upper electrode 93 is removed. Thereby, the electrical continuity between the power supply connection part 5 and the load connection part 6 is interrupted, and the load device is protected from an overcurrent caused by a lightning strike or a short circuit of the electric circuit. On the other hand, an elastic receiving portion (display tube) 95 of the fuse device 90 collides with a sealing plug 85 mounted on a hook member 84 provided at the lower end of the main body 81 and is exposed to the outside. This notifies the outside that the fuse 70 of the cutout device 80 has melted. At this time, the downward movement of the housing portion 91 with respect to the tension applying portion 94 of the fuse device 90 is restricted by the tension applying portion 94 coming into contact with the locking step portion 91 a of the housing portion 91 of the fuse device 90.

特開２００６−１１４２３１号公報JP 2006-114231 A 特開平１０−２６９９２６号公報Japanese Patent Laid-Open No. 10-269926

前記いずれのカットアウト装置５０，８０に内設されるヒューズ装置６０，９０も、過電流が発生した場合に、電源側と負荷側との電気的導通を遮断できるように、リード線付きヒューズ７０のリード線７２を緊張状態にロックする必要がある。すなわち、ヒューズ装置６０，９０の弾性部材６５，９６を確実に圧縮した状態にロックした上で、ヒューズ７０のリード線７２をねじ止めする必要がある。   The fuse devices 60 and 90 provided in any of the cutout devices 50 and 80 also have a fuse 70 with a lead wire so that the electrical continuity between the power supply side and the load side can be interrupted when an overcurrent occurs. It is necessary to lock the lead wire 72 in the tension state. That is, the elastic members 65 and 96 of the fuse devices 60 and 90 need to be locked in a compressed state and the lead wire 72 of the fuse 70 needs to be screwed.

実際のヒューズ取付作業において、作業者は、いずれのヒューズ装置６０，９０に対しても、一方の手で、張力付与部６６，９４を介して弾性部材６５，９６を圧縮しつつ、他方の手で、ヒューズ７０のリード線７２を、弾性部材６５，９６の抗力を受けている張力付与部６６，９４に引っ掛けて、電極部６７，電極部としての張力付与部９４にねじ止めしている。この作業は、弾性部材６５，９６の抗力を受けている張力付与部６６，９４を、人力では所定の位置に固定できないため、非常にやりにくく、ヒューズ７０のリード線７２に対する張力にばらつきが生じることになる。場合によっては、ねじ止めしたヒューズ７０のリード線７２に十分な張力が付与されず、ヒューズ７０の溶断時の遮断不良やカットアウト装置５０，８０への装着時の接触不良を誘発する恐れがある。   In the actual fuse mounting operation, the operator compresses the elastic members 65 and 96 via the tension applying portions 66 and 94 with one hand with respect to any of the fuse devices 60 and 90, while using the other hand. Thus, the lead wire 72 of the fuse 70 is hooked on the tension applying portions 66 and 94 receiving the drag force of the elastic members 65 and 96 and screwed to the electrode portion 67 and the tension applying portion 94 as the electrode portion. This operation is very difficult because the tension applying portions 66 and 94 receiving the drag of the elastic members 65 and 96 cannot be fixed at a predetermined position by human power, and the tension on the lead wire 72 of the fuse 70 varies. become. In some cases, sufficient tension is not applied to the lead wire 72 of the screwed fuse 70, which may cause a disconnection failure when the fuse 70 is blown or a contact failure when the fuse 70 is attached to the cutout devices 50 and 80. .

そこで、本発明は、前記問題に鑑み、ヒューズ装置に対するヒューズの取付作業を容易にできて、ヒューズのリード線に対する張力を均一化できるヒューズ取付用工具を提供することを目的とする。   SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a fuse mounting tool capable of facilitating the mounting operation of a fuse to a fuse device and uniforming the tension of the fuse lead wire.

前記課題を解決するために、本発明に係るヒューズ取付用工具は、筒体、該筒体の一端部に設けられる端子、該端子に電気的に接続されるとともに、筒体他端部から導出されるリード線により構成されるヒューズが、前記リード線を他端側の開口部から外部に引き出した状態で収容される筒状の収容部と、該収容部の一端側の開口部を閉塞するように設けられ、前記ヒューズの端子に電気的に接続される一方の電極部と、前記収容部に固定されるとともに、弾性部材が設けられる弾性受け部と、前記収容部に対して移動自在に設けられるとともに、前記弾性部材の放勢力によって弾性受け部から離間する方向に付勢される張力付与部と、前記収容部または前記張力付与部に設けられ、前記弾性部材が蓄勢された状態の張力付与部に引っ掛けられた前記リード線が電気的に接続される他方の電極部とを有するヒューズ装置に、前記ヒューズを取り付ける際に使用されるヒューズ取付工具において、前記弾性受け部に係止する第１係止部が設けられるとともに、前記張力付与部に係止する第２係止部が設けられ、前記弾性受け部と前記張力付与部とが所定の隙間を形成した状態で、前記弾性部材が蓄勢されるように、第１係止部が前記弾性受け部に係止し、第２係止部が前記張力付与部に係止するように構成されることを特徴とする。   In order to solve the above-mentioned problems, a fuse mounting tool according to the present invention is a cylinder, a terminal provided at one end of the cylinder, electrically connected to the terminal, and led out from the other end of the cylinder. The fuse composed of the lead wire closed closes the cylindrical housing portion that is housed in a state where the lead wire is pulled out from the opening portion on the other end side, and the opening portion on the one end side of the housing portion. One electrode part electrically connected to the terminal of the fuse, an elastic receiving part provided with an elastic member while being fixed to the accommodating part, and movable relative to the accommodating part A tension applying portion that is biased in a direction away from the elastic receiving portion by a biasing force of the elastic member, and a state in which the elastic member is stored in the storage portion or the tension applying portion. Hooked on the tensioning section In the fuse attachment tool used when attaching the fuse to the fuse device having the other electrode portion to which the lead wire is electrically connected, a first engagement portion for engagement with the elastic receiving portion is provided. A second locking portion that locks the tension applying portion, and the elastic member is stored in a state where a predetermined gap is formed between the elastic receiving portion and the tension applying portion. Further, the first locking portion is locked to the elastic receiving portion, and the second locking portion is locked to the tension applying portion.

かかる構成によれば、第１係止部が弾性受け部に係止し、第２係止部が張力付与部に係止することで、弾性部材が蓄勢される変位位置で張力付与部が機械的に保持される。したがって、ヒューズのリード線を、弾性部材が蓄勢状態の張力付与部に容易に引っ掛けることができる。そして、引っ掛けたリード線をヒューズ装置の他方の電極に接続するだけでよく、ヒューズ装置に対するヒューズの取り付けが極めて容易になる。また、弾性受け部と張力付与部との間に、所定の隙間が形成されるので、ヒューズ自体の熱収縮によって、リード線が切断されることが防止することができるとともに、ヒューズのリード線に対する張力を一定にすることができる。   According to such a configuration, the first locking portion is locked to the elastic receiving portion, and the second locking portion is locked to the tension applying portion, so that the tension applying portion is located at the displacement position where the elastic member is stored. Held mechanically. Therefore, the lead wire of the fuse can be easily hooked on the tension applying portion where the elastic member is in the stored state. Then, it is only necessary to connect the hooked lead wire to the other electrode of the fuse device, and the attachment of the fuse to the fuse device becomes extremely easy. In addition, since a predetermined gap is formed between the elastic receiving portion and the tension applying portion, it is possible to prevent the lead wire from being cut due to thermal contraction of the fuse itself, and to the fuse lead wire. The tension can be kept constant.

また、本発明によれば、前記他方の電極部が前記収容部に設けられる第１のヒューズ装置に適用される第１のヒューズ取付用工具と、前記他方の電極部が前記張力付与部に設けられる第２のヒューズ装置に適用される第２のヒューズ取付用工具とが一体的に構成されるようにしてもよい。   According to the invention, the first fuse mounting tool applied to the first fuse device in which the other electrode portion is provided in the housing portion, and the other electrode portion is provided in the tension applying portion. The second fuse mounting tool applied to the second fuse device may be configured integrally.

かかる構成によれば、前記他方の電極部が前記収容部に設けられるヒューズ装置、および、前記他方の電極部が前記張力付与部に設けられるヒューズ装置のいずれにも適用できるので、便利である。   This configuration is convenient because it can be applied to both a fuse device in which the other electrode portion is provided in the housing portion and a fuse device in which the other electrode portion is provided in the tension applying portion.

また、本発明によれば、三相配電線のうち、前記ヒューズが前記ヒューズ装置を介していずれの相に電気的に接続されるのかを視認できるように、接続される相の名称が表面に表示されるような構成を採用することもできる。   Further, according to the present invention, the name of the phase to be connected is displayed on the surface so that it can be visually confirmed which phase of the three-phase distribution line the fuse is electrically connected to via the fuse device. Such a configuration can also be adopted.

かかる構成によれば、接続されるべき配電線の相に、ヒューズを間違いなく接続することができる。   According to this configuration, the fuse can be definitely connected to the phase of the distribution line to be connected.

また、本発明によれば、前記第１係止部および前記第２係止部は、先端部が、該先端に向かうにしたがって大きく開口するように折り曲げられて形成されるような構成を採用するともできる。   Further, according to the present invention, when the first locking portion and the second locking portion are configured to be formed such that the tip end portion is bent so as to open greatly toward the tip end. You can also.

かかる構成によれば、第１係止部および第２係止部が、張力付与部および弾性受け部に係止しやすくなる。   According to this configuration, the first locking portion and the second locking portion can be easily locked to the tension applying portion and the elastic receiving portion.

また、本発明によれば、折り曲げられた前記第１係止部および前記第２係止部の先端部の対向面には、張力付与部の外面および内面、もしくは、弾性受け部の外面および内面に対応した係止面が形成されるような構成を採用することもできる。   Further, according to the present invention, the opposed surfaces of the bent first engaging portion and the distal end portion of the second engaging portion are the outer surface and the inner surface of the tension applying portion, or the outer surface and the inner surface of the elastic receiving portion. It is also possible to adopt a configuration in which a locking surface corresponding to is formed.

かかる構成によれば、折り曲げられた前記第１係止部および前記第２係止部の先端部の対向面に、張力付与部の外面および内面、もしくは、弾性受け部の外面および内面に対応した係止面が形成されることで、張力付与部もしくは弾性受け部に対してより一層係止しやすくなる。   According to such a configuration, the outer surface and the inner surface of the tension applying portion or the outer surface and the inner surface of the elastic receiving portion correspond to the opposed surfaces of the distal end portions of the first locking portion and the second locking portion that are bent. By forming the locking surface, it becomes easier to lock the tension applying portion or the elastic receiving portion.

本発明によれば、ヒューズ装置の弾性部材を蓄勢した状態に機械的にロックできるので、ヒューズ装置に対するヒューズの取付作業を容易に行うことができるとともに、ヒューズのリード線に対する張力を均一化することができる。   According to the present invention, since the elastic member of the fuse device can be mechanically locked in a stored state, the fuse can be easily attached to the fuse device, and the tension on the lead wire of the fuse is made uniform. be able to.

本発明の一実施形態に係るヒューズ取付用工具を示す斜視図。The perspective view which shows the tool for fuse installation which concerns on one Embodiment of this invention. 同実施形態に係る第１のヒューズ取付工具を、箱型の過電流保護装置（カットアウト装置）に内設されるヒューズ装置に取り付ける状態を示す斜視図。The perspective view which shows the state which attaches the 1st fuse installation tool which concerns on the same embodiment to the fuse apparatus provided in a box-type overcurrent protection apparatus (cutout apparatus). 同実施形態に係る第１のヒューズ取付工具の第１係止部を、前記ヒューズ装置の収容部に係止させる状態を示す斜視図。The perspective view which shows the state which locks the 1st latching | locking part of the 1st fuse attachment tool which concerns on the embodiment to the accommodating part of the said fuse apparatus. 同実施形態に係る第１のヒューズ取付工具の第２係止部を、前記ヒューズ装置の張力付与部の低部位に係止させる状態を示す斜視図。The perspective view which shows the state which locks the 2nd latching | locking part of the 1st fuse attachment tool which concerns on the embodiment to the low site | part of the tension | tensile_strength provision part of the said fuse apparatus. 前記ヒューズ装置の張力付与部を回転させて、張力付与部の位置を低部位から高部位に変移させて、同実施形態に係る第１のヒューズ取付工具の第２係止部を、前記ヒューズ装置の張力付与部の高部位に係止させる状態を示す斜視図。The tension applying portion of the fuse device is rotated to change the position of the tension applying portion from a low part to a high part, and the second locking portion of the first fuse mounting tool according to the embodiment is used as the fuse device. The perspective view which shows the state made to latch on the high site | part of the tension | tensile_strength provision part. 前記ヒューズ装置の張力付与部から引き出されたリード線を、前記ヒューズ装置の張力付与部に引っ掛けて折り返す状態を示す斜視図。The perspective view which shows the state which hooks the lead wire pulled out from the tension | tensile_strength provision part of the said fuse apparatus on the tension | tensile_strength provision part of the said fuse apparatus, and folds back. 同実施形態に係る第１のヒューズ取付工具の張力付与部から引き出されたリード線を、前記ヒューズ装置の電極部に接続する状態を示す斜視図。The perspective view which shows the state which connects the lead wire withdraw | derived from the tension | tensile_strength provision part of the 1st fuse attachment tool which concerns on the embodiment to the electrode part of the said fuse apparatus. 同実施形態に係る第２のヒューズ取付工具を、円筒型の過電流保護装置（カットアウト装置）に内設されるヒューズ装置に取り付けた状態を示す斜視図。The perspective view which shows the state which attached the 2nd fuse installation tool which concerns on the same embodiment to the fuse apparatus provided in a cylindrical overcurrent protection apparatus (cutout apparatus). 前記過電流保護装置の張力付与部から引き出されたリード線を張力付与部に引っ掛けて折り返して、前記過電流保護装置の電極部に接続した状態を示す斜視図。The perspective view which shows the state which hooked the lead wire withdraw | derived from the tension | tensile_strength provision part of the said overcurrent protective device, and turned up and connected to the electrode part of the said overcurrent protective device. （ａ），（ｂ）は、箱型の過電流保護装置（カットアウト装置）を示す図。(A), (b) is a figure which shows a box-type overcurrent protection apparatus (cutout apparatus). （ａ）〜（ｃ）は、箱型の過電流保護装置に内設されるヒューズ装置に、ヒューズを取り付けた状態を示す図。(A)-(c) is a figure which shows the state which attached the fuse to the fuse apparatus provided in a box-type overcurrent protection apparatus. 円筒型の過電流保護装置（カットアウト装置）を示す斜視図。The perspective view which shows a cylindrical overcurrent protection apparatus (cutout apparatus). （ａ），（ｂ）は、円筒型の過電流保護装置に内設されるヒューズ装置、および、ヒューズを示す図。(A), (b) is a figure which shows the fuse apparatus provided in a cylindrical overcurrent protection apparatus, and a fuse. （ａ），（ｂ）は、前記ヒューズ装置にヒューズを取り付けた状態を示す図。(A), (b) is a figure which shows the state which attached the fuse to the said fuse apparatus.

本発明に係るヒューズ取付用工具の一実施形態について、図１〜図９を参照して説明する。なお、図１０に示す箱型のカットアウト装置５０と、該カットアウト装置５０に内設される、図１１に示す第１のヒューズ装置（以下、単にヒューズ装置いう場合がある。）６０と、図１２に示す円筒型のカットアウト装置８０と、該カットアウト装置８０に内設される、図１４に示す第２のヒューズ装置（以下、単にヒューズ装置いう場合がある。）９０と、図１１（ａ）および図１３（ｂ）に示すリード線付きヒューズ７０については、本実施形態においても同一構成のものを使用する。これらについては、前記背景技術において、その構成を説明しているので、本実施形態においては省略する。   An embodiment of a fuse mounting tool according to the present invention will be described with reference to FIGS. A box-shaped cutout device 50 shown in FIG. 10, a first fuse device (hereinafter also referred to simply as a fuse device) 60 shown in FIG. 11 provided in the cutout device 50, and A cylindrical cutout device 80 shown in FIG. 12, a second fuse device (hereinafter also referred to simply as a fuse device) 90 shown in FIG. 14 provided in the cutout device 80, and FIG. As for the fuse 70 with a lead wire shown in FIG. 13A and FIG. 13B, the same configuration is used in this embodiment. About these, since the structure is demonstrated in the said background art, it abbreviate | omits in this embodiment.

本実施形態に係るヒューズ取付用工具１は、図１１に示す第１のヒューズ装置６０に適用される第１のヒューズ取付用工具１と、図１３および図１４に示す第２のヒューズ装置９０に適用される第２のヒューズ取付用工具５とが一体化されて構成されている。   The fuse mounting tool 1 according to the present embodiment includes a first fuse mounting tool 1 applied to the first fuse device 60 shown in FIG. 11 and a second fuse device 90 shown in FIGS. 13 and 14. The second fuse mounting tool 5 to be applied is integrated.

第１のヒューズ取付用工具１は、図１に示すように、細長い板状部材１ａで構成されている。この板状部材１ａには、図１１に示すヒューズ装置６０における収容部６１の中途部（弾性受け部６４の段部６４ｃ）に係止される第１係止部２が一端部に設けられるとともに、ヒューズ装置６０の張力付与部６６に係止される第２係止部３が他端部に設けられている。   As shown in FIG. 1, the first fuse mounting tool 1 is composed of an elongated plate-like member 1a. The plate-like member 1a is provided with a first locking portion 2 at one end portion that is locked to a midway portion (stepped portion 64c of the elastic receiving portion 64) of the accommodating portion 61 in the fuse device 60 shown in FIG. The second locking portion 3 locked to the tension applying portion 66 of the fuse device 60 is provided at the other end portion.

第１のヒューズ取付用工具１の第１係止部２は、ヒューズ装置６０の収容部６１の外周面に当接するように、外形が略五角形状に折り曲げられて形成されている。具体的には、収容部６１の直径よりもやや大きい幅寸法に設定される基部２ａと、該基部２ａの両端部から直角に折り曲げられて形成された一対の第１折曲部２ｂ，２ｂと、両第１折曲部２ｂ，２ｂの先端部が互いに近接するように、内側に向かって傾斜する一対の第２折曲部２ｃ，２ｃとを有している。そして、一対の第２折曲部間２ｃ，２ｃの間隔は、収容部６１の直径と略同一寸法になるように設定されている。したがって、第１係止部２の基部２ａの内面が、収容部６１の外周面の上側の頂部に当接するとともに、一対の第１折曲部２ｂ，２ｂの内面が、収容部６１の外周面の左右の頂部に当接し、一対の第２折曲部２ｃ，２ｃの内面が、前記左右の頂部の近傍に当接することになる。一方、第１係止部２の基部２ａの端面および第１折曲部２ｂ，２ｂの端面が、ヒューズ装置６０の弾性受け部材６４の段部６４ｃの端面に当接することになる。これらの当接によって、第１係止部２は、収容部６１に位置固定されることになる。   The first locking portion 2 of the first fuse mounting tool 1 is formed by bending its outer shape into a substantially pentagonal shape so as to contact the outer peripheral surface of the housing portion 61 of the fuse device 60. Specifically, a base 2a set to a width that is slightly larger than the diameter of the accommodating portion 61, and a pair of first bent portions 2b, 2b formed by being bent at right angles from both ends of the base 2a, The first bent portions 2b and 2b have a pair of second bent portions 2c and 2c that are inclined inward so that the tip ends of the first bent portions 2b and 2b are close to each other. The distance between the pair of second bent portions 2c, 2c is set to be approximately the same as the diameter of the accommodating portion 61. Therefore, the inner surface of the base portion 2 a of the first locking portion 2 abuts on the top portion on the upper side of the outer peripheral surface of the accommodating portion 61, and the inner surfaces of the pair of first bent portions 2 b and 2 b are the outer peripheral surfaces of the accommodating portion 61. The inner surfaces of the pair of second bent portions 2c and 2c are in contact with the vicinity of the left and right top portions. On the other hand, the end surface of the base portion 2 a of the first locking portion 2 and the end surfaces of the first bent portions 2 b and 2 b come into contact with the end surface of the stepped portion 64 c of the elastic receiving member 64 of the fuse device 60. Due to these abutments, the position of the first locking portion 2 is fixed to the accommodating portion 61.

第１のヒューズ取付用工具１の第２係止部３は、板状部材１ａの先端部３ａが直角に折り曲げられて、その先端３ｂがさらに直角に折り曲げられて形成されている。そして、第２係止部３は、ヒューズ装置６０の弾性部材６５が蓄勢された状態の張力付与部６６の開口部６６ａに係止されるが、具体的には、ヒューズ装置６０の弾性受け部６４と張力付与部６６とが所定の隙間（例えば、２〜５ｍｍ）Ｈを形成した状態で、弾性部材６５が蓄勢されるように、第２係止部３が張力付与部６６に係止される。そして、第２係止部３が張力付与部６６に係止することによって、弾性部材６５の蓄勢状態がロックされることになる。   The second locking portion 3 of the first fuse mounting tool 1 is formed by bending the tip 3a of the plate member 1a at a right angle and further bending the tip 3b at a right angle. The second locking portion 3 is locked to the opening 66a of the tension applying portion 66 in a state where the elastic member 65 of the fuse device 60 is stored. Specifically, the second locking portion 3 is elastically received by the fuse device 60. The second locking portion 3 is engaged with the tension applying portion 66 so that the elastic member 65 is stored in a state where the portion 64 and the tension applying portion 66 form a predetermined gap (for example, 2 to 5 mm) H. Stopped. And when the 2nd latching | locking part 3 latches to the tension | tensile_strength provision part 66, the accumulation state of the elastic member 65 will be locked.

第２のヒューズ取付用工具５は、図１に示すように、細長い板状部材で構成されている。この板状部材は、水平部５ａと、該水平部５ａの中途部から所定の角度をもって折り曲げて形成される傾斜部５ｂとを有している。そして、水平部５ａの端部には、ヒューズ装置９０の下部電極としての張力付与部９４に係止される第１係止部６が設けられるとともに、傾斜部５ｂの端部には、ヒューズ装置９０の弾性受け部９５に係止される第２係止部７が設けられている。前記所定角度が形成されている理由としては、ヒューズ装置９０の大径の下部電極としての張力付与部９４に対して、弾性受け部９５が小径であることから、小径の弾性受け部９５に係止しやすくするためである。   As shown in FIG. 1, the second fuse attachment tool 5 is formed of an elongated plate-like member. This plate-like member has a horizontal portion 5a and an inclined portion 5b formed by being bent at a predetermined angle from a middle portion of the horizontal portion 5a. A first locking portion 6 that is locked to a tension applying portion 94 as a lower electrode of the fuse device 90 is provided at the end of the horizontal portion 5a, and a fuse device is provided at the end of the inclined portion 5b. A second locking portion 7 that is locked to the 90 elastic receiving portions 95 is provided. The reason why the predetermined angle is formed is that the elastic receiving portion 95 has a small diameter with respect to the tension applying portion 94 as the large-diameter lower electrode of the fuse device 90, and therefore the small angle elastic receiving portion 95 is related. This is to make it easier to stop.

そして、第２のヒューズ取付用工具５の水平部５ａの背面と、第１のヒューズ取付用工具１の板状部材１ａの第１係止部２側の背面とが固着されて一体化されている。また、第２のヒューズ取付用工具５の傾斜部５ｂは、第１のヒューズ取付工具１の第２係止部３に対して離間する方向に傾斜している。   The back surface of the horizontal portion 5a of the second fuse mounting tool 5 and the back surface of the plate-like member 1a of the first fuse mounting tool 1 on the first locking portion 2 side are fixed and integrated. Yes. Further, the inclined portion 5 b of the second fuse attachment tool 5 is inclined in a direction away from the second locking portion 3 of the first fuse attachment tool 1.

また、第１のヒューズ取付用工具１の表面および第２のヒューズ取付用工具５の表面には、三相配電線のうち、ヒューズ７０がヒューズ装置６０，９０を介していずれの相（Ａ相、Ｂ相、Ｃ相）に電気的に接続されるのかを視認できるように、接続される相の名称（Ａ相、Ｂ相、Ｃ相）が表示されている（図示せず）。   In addition, on the surface of the first fuse mounting tool 1 and the surface of the second fuse mounting tool 5, the fuse 70 of the three-phase distribution line has any phase (A phase, The names of the phases to be connected (A phase, B phase, C phase) are displayed (not shown) so that it can be visually confirmed whether they are electrically connected to (B phase, C phase).

第２のヒューズ取付用工具５の第１係止部６は、ヒューズ装置９０の弾性受け部９５の開口部９５ｂに係止しやすいように、先端部６ａが、該先端６ｂに向かうにしたがってやや大きく開口するように折り曲げられて形成されている。   The first locking portion 6 of the second fuse mounting tool 5 is slightly moved toward the tip 6b so that the tip 6a is easily locked to the opening 95b of the elastic receiving portion 95 of the fuse device 90. It is formed to be bent so as to open large.

第２のヒューズ取付用工具５の第２係止部７は、傾斜部５ｂから略直角に折り曲げられ折曲部７ａと、該折曲部７ａの先端部の中央部から延出された延出部７ｂが、該延出部７ｂの先端に向かうにしたがって大きく開口するように折り曲げられて形成されている。また、延出部７ｂの内面には、ヒューズ装置９０の張力付与部９４の内面に対応した係止面７ｃが形成されている。そして、第２係止部７は、ヒューズ装置９０の弾性受け部９５の開口部９５ｂに係止されるが、具体的には、ヒューズ装置９０の弾性受け部９５と張力付与部９４とが所定の隙間（例えば、２〜５ｍｍ）Ｈを形成した状態で、ヒューズ装置９０の弾性部材９６が蓄勢されるように係止される。そして、第２係止部７がヒューズ装置９０の弾性受け部９５の開口部９５ｂ張力付与部９４に係止することによって、ヒューズ装置９０の弾性部材９６の蓄勢状態がロックされることになる。   The second locking portion 7 of the second fuse mounting tool 5 is bent at a substantially right angle from the inclined portion 5b and is extended from the bent portion 7a and the central portion of the tip portion of the bent portion 7a. The portion 7b is formed to be bent so as to open larger toward the tip of the extending portion 7b. A locking surface 7c corresponding to the inner surface of the tension applying portion 94 of the fuse device 90 is formed on the inner surface of the extending portion 7b. The second locking portion 7 is locked to the opening 95b of the elastic receiving portion 95 of the fuse device 90. Specifically, the elastic receiving portion 95 and the tension applying portion 94 of the fuse device 90 are predetermined. The elastic member 96 of the fuse device 90 is locked so as to be stored in a state where a gap H (for example, 2 to 5 mm) H is formed. Then, when the second locking portion 7 is locked to the opening 95b tension applying portion 94 of the elastic receiving portion 95 of the fuse device 90, the stored state of the elastic member 96 of the fuse device 90 is locked. .

なお、ヒューズ装置６０の弾性受け部６４と張力付与部６６とが所定の隙間（例えば、２〜５ｍｍ）Ｈを形成した状態で、弾性部材６５を蓄勢する理由としては、ヒューズ７０が、ヒューズ７０自体の熱収縮によって溶断しないようにするためである。   The reason why the elastic member 65 is stored in a state where the elastic receiving portion 64 and the tension applying portion 66 of the fuse device 60 form a predetermined gap (for example, 2 to 5 mm) H is as follows. This is to prevent melting due to thermal contraction of 70 itself.

つぎに使用態様について図２〜図９を参照して説明する。まず、図１１に示すヒューズ装置６０に、リード線付きヒューズ７０をセットする場合は、ヒューズ７０の端子７１が導通部材６１０の開口端に位置するまで、ヒューズ７０をヒューズ装置６０の軸孔６１ｂに挿入し、ヒューズ７０の端子７１を、ヒューズ装置６０のキャップ６１１によって締め付けて、ヒューズ７０をヒューズ装置６０に固定する一方、ヒューズ７０のリード線７２を、ヒューズ装置６０の張力付与部６６の開口部６６ａから引き出す。この際、ヒューズ装置６０の張力付与部６６の開口部６６ａの高部６６ｃが導電刃６２，６２の反対側に位置するとともに、低部６６ｂが導電刃６２，６２側に位置しているものとする（図２参照）。   Next, a usage mode will be described with reference to FIGS. First, when the fuse 70 with a lead wire is set in the fuse device 60 shown in FIG. 11, the fuse 70 is inserted into the shaft hole 61 b of the fuse device 60 until the terminal 71 of the fuse 70 is positioned at the opening end of the conducting member 610. Inserting and fixing the terminal 71 of the fuse 70 by the cap 611 of the fuse device 60 to fix the fuse 70 to the fuse device 60, while the lead wire 72 of the fuse 70 is connected to the opening of the tension applying portion 66 of the fuse device 60. Pull out from 66a. At this time, the high portion 66c of the opening 66a of the tension applying portion 66 of the fuse device 60 is positioned on the opposite side of the conductive blades 62, 62, and the low portion 66b is positioned on the conductive blades 62, 62 side. (See FIG. 2).

つぎに、図３に示すように、第１のヒューズ取付用工具１の第１係止部２を、ヒューズ装置６０の導電板６１２の近傍の収容部６１の外周面に位置させ、図４に示すように、第１のヒューズ取付用工具１の第１係止部２を、ヒューズ装置６０の導電板６１２の締め付けねじ６１３の近傍にある、収容部６１の外周面に当接させるとともに、第１のヒューズ取付工具１の板状部材１ａをヒューズ装置６０の弾性受け部６４の段部６４ｃに当接させる。   Next, as shown in FIG. 3, the first locking portion 2 of the first fuse mounting tool 1 is positioned on the outer peripheral surface of the accommodating portion 61 in the vicinity of the conductive plate 612 of the fuse device 60, and FIG. As shown, the first locking portion 2 of the first fuse mounting tool 1 is brought into contact with the outer peripheral surface of the housing portion 61 in the vicinity of the fastening screw 613 of the conductive plate 612 of the fuse device 60, and The plate-like member 1 a of one fuse mounting tool 1 is brought into contact with the stepped portion 64 c of the elastic receiving portion 64 of the fuse device 60.

この際、図４に示すように、一方の手で、ヒューズ装置６０の張力付与部６６を回転させて、張力付与部６６の開口部６６ａの低部６６ｂを、第１のヒューズ取付用工具１の第１係止部２の近傍に位置させる。そして、弾性部材６５を圧縮する方向、すなわち、張力付与部６６を弾性受け部６４に押し込む方向に移動させて、第１のヒューズ取付用工具１の第２係止部３を、ヒューズ装置６０の張力付与部６６の低部６６ｂに係止させる。   At this time, as shown in FIG. 4, the tension applying portion 66 of the fuse device 60 is rotated with one hand, and the lower portion 66 b of the opening 66 a of the tension applying portion 66 is moved to the first fuse mounting tool 1. In the vicinity of the first locking portion 2. Then, the elastic member 65 is compressed, that is, the tension applying portion 66 is moved into the elastic receiving portion 64 to move the second locking portion 3 of the first fuse mounting tool 1 to the fuse device 60. The tension is applied to the lower portion 66b of the tension applying portion 66.

つぎに、図５に示すように、第１のヒューズ取付用工具１の第２係止部３が、ヒューズ装置６０の張力付与部６６の高部６６ｃに係止するように、張力付与部６６を周方向に回転させる。すなわち、ヒューズ装置６０張力付与部６６の高部６６ｃが、導電刃６２，６２とは反対側に位置することになる。この状態（図２に戻した状態）で、図６に示すように、締め付けねじ６１４を緩めて、ヒューズ７０のリード線７２を、張力付与部６６の切欠き溝６６ｄ側に折り曲げる。そして、図７に示すように、ヒューズ７０のリード線７２を、張力付与部６６の切欠き溝６６ｄに引っ掛けて折り返し、ヒューズ７０のリード線７２を引っ張った状態にしつつ、締め付けねじ６１４に巻き付けて、締め付けねじ６１４を締め付けて他方の電極部６７にねじ止めする。   Next, as shown in FIG. 5, the tension applying portion 66 is configured such that the second locking portion 3 of the first fuse mounting tool 1 is locked to the high portion 66 c of the tension applying portion 66 of the fuse device 60. Rotate in the circumferential direction. That is, the high portion 66 c of the fuse device 60 tension applying portion 66 is located on the side opposite to the conductive blades 62, 62. In this state (the state returned to FIG. 2), as shown in FIG. 6, the tightening screw 614 is loosened, and the lead wire 72 of the fuse 70 is bent toward the notch groove 66 d of the tension applying portion 66. Then, as shown in FIG. 7, the lead wire 72 of the fuse 70 is hooked on the notch groove 66 d of the tension applying portion 66 and turned back, and the lead wire 72 of the fuse 70 is pulled and wound around the fastening screw 614. Then, the fastening screw 614 is fastened and screwed to the other electrode portion 67.

これにより、ヒューズ７０のリード線７２に張力が付与された状態、すなわち、過電流が発生した際に遮断できる状態にセットできることになる。   As a result, the lead wire 72 of the fuse 70 can be set in a state where tension is applied, that is, in a state that can be interrupted when an overcurrent occurs.

つぎに、図１４に示す円筒型のヒューズ装置９０に、リード線付きヒューズ７０をセットする場合は、ヒューズ７０の端子７１が、ヒューズ装置９０の上部電極９３に接触するまで、ヒューズ７０を、ヒューズ装置９０の軸孔１５ａに挿入する一方、ヒューズ７０リード線７２を、ヒューズ装置９０の張力付与部９４の開口部９４ａから引き出す。   Next, when the fuse 70 with a lead wire is set in the cylindrical fuse device 90 shown in FIG. 14, the fuse 70 is connected until the terminal 71 of the fuse 70 contacts the upper electrode 93 of the fuse device 90. While being inserted into the shaft hole 15 a of the device 90, the fuse 70 lead wire 72 is pulled out from the opening 94 a of the tension applying portion 94 of the fuse device 90.

つぎに、図８に示すように、第２のヒューズ取付用工具５の第１係止部６を、ヒューズ装置９０の張力付与部９４の締め付けねじ９４ａがある位置とは異なる位置に係止させる。すなわち、締め付けねじのない張力付与部９４の部分に、第２のヒューズ取付用工具５の第１係止部６を係止させる。   Next, as shown in FIG. 8, the first locking portion 6 of the second fuse mounting tool 5 is locked at a position different from the position where the tightening screw 94a of the tension applying portion 94 of the fuse device 90 is located. . That is, the first locking portion 6 of the second fuse mounting tool 5 is locked to the portion of the tension applying portion 94 that does not have a tightening screw.

つぎに、一方の手で、ヒューズ装置９０の弾性部材９６を圧縮する方向、すなわち、張力付与部９４を弾性受け部９５に近接する方向に移動させて、第２のヒューズ取付用工具５の第２係止部７を弾性受け部９５の開口部９５ｂに係止させる。   Next, with one hand, the elastic member 96 of the fuse device 90 is compressed, that is, the tension applying portion 94 is moved in the direction close to the elastic receiving portion 95, and the second fuse mounting tool 5 2 The locking part 7 is locked to the opening 95b of the elastic receiving part 95.

つぎに、図９に示すように、第２のヒューズ取付用工具５が、ヒューズ装置９０の張力付与部９４の締め付けねじ９４ａのある位置に対して反対側に位置するように、張力付与部９４を回転させる。この状態で、ヒューズ７０のリード線７２を、弾性受け部９５の切欠き溝９５ｃに引っ掛けて折り返し、ヒューズ７０のリード線７２を張設した状態にしつつ、締め付けねじ９４ａに巻き付けて、締め付けねじ９４ａを締め付けて、ヒューズ装置９０の下部電極としての張力付与部９４にねじ止めする。   Next, as shown in FIG. 9, the tension applying portion 94 so that the second fuse mounting tool 5 is located on the opposite side of the position where the tightening screw 94 a of the tension applying portion 94 of the fuse device 90 is located. Rotate. In this state, the lead wire 72 of the fuse 70 is hooked on the notch groove 95c of the elastic receiving portion 95 and turned back, and the lead wire 72 of the fuse 70 is stretched and wound around the fastening screw 94a. Are tightened and screwed to a tension applying portion 94 as a lower electrode of the fuse device 90.

これにより、ヒューズ７０のリード線７２に張力が付与された状態、すなわち、過電流が発生した際に遮断できる状態にセットできることになる。なお、この際も、上述したように、ヒューズ装置９０の弾性受け部９５と張力付与部９４とが所定の隙間（例えば、２〜５ｍｍ）Ｈを形成した状態で、弾性部材９６を蓄勢する（図９参照）。   As a result, the lead wire 72 of the fuse 70 can be set in a state where tension is applied, that is, in a state that can be interrupted when an overcurrent occurs. At this time, as described above, the elastic member 96 is stored with the elastic receiving portion 95 and the tension applying portion 94 of the fuse device 90 forming a predetermined gap (for example, 2 to 5 mm) H. (See FIG. 9).

このように、本実施形態に係るヒューズ取付用工具によれば、ヒューズ装置６０，９０の弾性部材６５，９６を蓄勢状態に機械的にロックすることができるので、過電流が発生した際に、電源側と負荷側と電気的導通を遮断できるように、ヒューズ装置６０，９０にリード線付きヒューズ７０を容易にセットすることができる。また、ヒューズ装置６０，９０の弾性部材６５，９６を蓄勢状態に機械的にロックできることから、ヒューズ７０のリード線７２に対する張力を均一化することができる。したがって、ヒューズ７０の溶断時の遮断不良および図１０および図１２に示すカットアウト装置への装着時の接触不良を防止することができる。   As described above, according to the fuse mounting tool according to the present embodiment, the elastic members 65 and 96 of the fuse devices 60 and 90 can be mechanically locked in the stored state, so when an overcurrent occurs. The fuse 70 with a lead wire can be easily set in the fuse devices 60 and 90 so that the electrical connection between the power supply side and the load side can be interrupted. Further, since the elastic members 65 and 96 of the fuse devices 60 and 90 can be mechanically locked in the stored state, the tension on the lead wire 72 of the fuse 70 can be made uniform. Therefore, it is possible to prevent a disconnection failure when the fuse 70 is blown and a contact failure when the fuse 70 is attached to the cutout device shown in FIGS.

なお、本発明に係るヒューズ取付用工具は、前記実施の形態に限定することなく種々変更することができる。   The fuse mounting tool according to the present invention can be variously modified without being limited to the above embodiment.

例えば、前記実施形態の場合、弾性部材６５，９６として圧縮ばねを用いたが、引っ張りばねを用いてもよい。この場合、弾性部材６５，９６を引っ張った状態が、弾性部材６５，９６の蓄勢状態となる。   For example, in the case of the above embodiment, the compression springs are used as the elastic members 65 and 96, but tension springs may be used. In this case, the state in which the elastic members 65 and 96 are pulled is the stored state of the elastic members 65 and 96.

また、前記実施形態の場合、係止面７ｃを第２ヒューズ取付工具５の第２係止部７のみに形成するようにしたが、他の係止部３，６にも形成するようにしてもよい。   In the case of the above embodiment, the locking surface 7c is formed only on the second locking portion 7 of the second fuse mounting tool 5, but it is also formed on the other locking portions 3 and 6. Also good.

１，５…ヒューズ取付用工具、１ａ…板状部材、２…第１係止部、２ａ…基部、２ｂ…第１折曲部、２ｃ…第２折曲部、３…第２係止部、３ａ…先端部、３ｂ…先端、５ａ…水平部、５ｂ…傾斜部、６…第１係止部、６ａ…先端部、６ｂ…先端、７…第２係止部、７ａ…折曲部、７ｂ…延出部、７ｃ…係止面、１５ａ…軸孔、５０，８０…カットアウト装置、６０，９０…ヒューズ装置、６１，９１…収容部、６３，６７、９３，９５…電極部、６４，９５…弾性受け部、６５，９６…弾性部材、６６，９４…張力付与部、７０…ヒューズ、７１…端子、７２…リード線、８０…カットアウト装置、   DESCRIPTION OF SYMBOLS 1,5 ... Tool for fuse installation, 1a ... Plate-shaped member, 2 ... 1st latching | locking part, 2a ... Base part, 2b ... 1st bending part, 2c ... 2nd bending part, 3 ... 2nd latching part 3a ... tip portion, 3b ... tip, 5a ... horizontal portion, 5b ... inclined portion, 6 ... first locking portion, 6a ... tip portion, 6b ... tip, 7 ... second locking portion, 7a ... bent portion , 7b ... Extension part, 7c ... Locking surface, 15a ... Shaft hole, 50, 80 ... Cutout device, 60, 90 ... Fuse device, 61, 91 ... Housing part, 63, 67, 93, 95 ... Electrode part 64, 95 ... elastic receiving portion, 65, 96 ... elastic member, 66, 94 ... tension applying portion, 70 ... fuse, 71 ... terminal, 72 ... lead wire, 80 ... cutout device,

前記課題を解決するために、本発明に係るヒューズ取付用工具は、筒体、該筒体の一端部に設けられる端子、該端子に電気的に接続されるとともに、筒体他端部から導出されるリード線により構成されるヒューズが、前記リード線を他端側の開口部から外部に引き出した状態で収容される筒状の収容部と、該収容部の一端側の開口部を閉塞するように設けられ、前記ヒューズの端子に電気的に接続される一方の電極部と、前記収容部に固定されるとともに、弾性部材が設けられる弾性受け部と、前記収容部に対して移動自在に設けられるとともに、前記弾性部材の放勢力によって弾性受け部から離間する方向に付勢される筒状の張力付与部と、前記収容部または前記張力付与部に設けられ、前記弾性部材が蓄勢された状態の張力付与部に引っ掛けられた前記リード線が電気的に接続される他方の電極部とを有するヒューズ装置に、前記ヒューズを取り付ける際に使用されるヒューズ取付用工具において、前記弾性受け部に係止する第１係止部と、前記張力付与部に係止する第２係止部とが板状部材に連結され、第１係止部は、一対の折曲部を有し、前記収容部の外周に着脱可能に構成されるとともに、一対の折曲部の離間した両先端から前記収容部が出し入れ可能に構成され、且つ前記収容部の外周を挟み込み可能に構成され、第２係止部は、前記張力付与部の開口端縁に引っ掛け可能に折り返して形成されたことを特徴とする。
In order to solve the above-mentioned problems, a fuse mounting tool according to the present invention is a cylinder, a terminal provided at one end of the cylinder, electrically connected to the terminal, and led out from the other end of the cylinder. The fuse composed of the lead wire closed closes the cylindrical housing portion that is housed in a state where the lead wire is pulled out from the opening portion on the other end side, and the opening portion on the one end side of the housing portion. One electrode part electrically connected to the terminal of the fuse, an elastic receiving part provided with an elastic member while being fixed to the accommodating part, and movable relative to the accommodating part A cylindrical tension applying portion that is urged in a direction away from the elastic receiving portion by the urging force of the elastic member; and the accommodating portion or the tension applying portion that stores the elastic member. Pull the tension applying part in the In a fuse attachment tool used when attaching the fuse to a fuse device having the other electrode portion to which the lead wire is electrically connected, a first engagement that engages with the elastic receiving portion. a second locking portion is connected to the plate-like member for engaging and retaining portion, before Symbol tensioning unit, the first locking portion has a pair of bent portions, detachably attached to the outer periphery of the housing part The storage portion is configured to be able to be inserted and removed from both ends of the pair of bent portions, and the outer periphery of the storage portion can be sandwiched. It is characterized in that it is formed so as to be able to be hooked on the opening edge of the applying portion .

また、本発明によれば、筒体、該筒体の一端部に設けられる端子、該端子に電気的に接続されるとともに、筒体他端部から導出されるリード線により構成されるヒューズが、前記リード線を他端側の開口部から外部に引き出した状態で収容される筒状の収容部と、該収容部の一端側の開口部を閉塞するように設けられ、前記ヒューズの端子に電気的に接続される一方の電極部と、前記収容部に固定されるとともに、弾性部材が設けられる弾性受け部と、前記収容部に対して移動自在に設けられるとともに、前記弾性部材の放勢力によって弾性受け部から離間する方向に付勢される筒状の張力付与部と、前記収容部または前記張力付与部に設けられ、前記弾性部材が蓄勢された状態の張力付与部に引っ掛けられた前記リード線が電気的に接続される他方の電極部とを有するヒューズ装置に、前記ヒューズを取り付ける際に使用されるヒューズ取付用工具において、前記弾性受け部に係止する第１係止部と、前記張力付与部に係止する第２係止部とが板状部材に連結された第１のヒューズ取付用工具であって、第１係止部は、一対の折曲部を有し、前記収容部の外周に着脱可能に構成されるとともに、一対の折曲部の離間した両先端から前記収容部が出し入れ可能に構成され、且つ前記収容部の外周を挟み込み可能に構成され、第２係止部は、前記張力付与部の開口端縁に引っ掛け可能に折り返して形成された第１のヒューズ取付用工具と、前記弾性受け部に係止する第１係止部と、前記張力付与部に係止する第２係止部とが板状部材に連結された第２のヒューズ取付用工具であって、第１係止部は、前記弾性受け部の開口端縁に引っ掛け可能に折り返して形成され、第２係止部は、前記張力付与部の開口端縁に引っ掛け可能に折り返して形成された第２のヒューズ取付用工具とを備え、第１のヒューズ取付用工具と第２のヒューズ取付用工具とが一体的に構成されたことを特徴とする。
Further, according to the present invention, there is provided a fuse including a cylinder, a terminal provided at one end of the cylinder, a lead wire electrically connected to the terminal and led out from the other end of the cylinder. A cylindrical housing portion that is housed in a state in which the lead wire is pulled out from the opening portion on the other end side, and an opening portion on one end side of the housing portion, and is provided to close the terminal of the fuse One electrode portion that is electrically connected, an elastic receiving portion that is fixed to the housing portion and provided with an elastic member, and is provided movably with respect to the housing portion, and a biasing force of the elastic member The cylindrical tension applying unit that is urged in a direction away from the elastic receiving unit and the storage unit or the tension applying unit, and is hooked by the tension applying unit in a state where the elastic member is stored The lead wire is electrically connected In a fuse attachment tool used when attaching the fuse to the fuse device having the other electrode portion, the first engagement portion that engages with the elastic receiving portion and the tension applying portion are engaged. The second locking portion is a first fuse mounting tool connected to a plate-like member, and the first locking portion has a pair of bent portions and is detachable from the outer periphery of the housing portion. It is comprised, it is comprised so that the said accommodating part can be taken in / out from both the front-end | tips which a pair of bending part spaced apart, and it is comprised so that the outer periphery of the said accommodating part can be inserted | pinched, The 2nd latching | locking part is the said tension | tensile_strength provision part A first fuse mounting tool formed by being folded back so as to be hookable on the opening edge of the first, a first locking portion locked to the elastic receiving portion, and a second locking portion locked to the tension applying portion Is a second fuse mounting tool connected to the plate-shaped member, The first locking portion is formed by being folded back so as to be hooked on the opening edge of the elastic receiving portion, and the second locking portion is formed by being folded so as to be hookable on the opening edge of the tension applying portion. A fuse mounting tool, wherein the first fuse mounting tool and the second fuse mounting tool are integrally configured.

また、本発明によれば、筒体、該筒体の一端部に設けられる端子、該端子に電気的に接続されるとともに、筒体他端部から導出されるリード線により構成されるヒューズが、前記リード線を他端側の開口部から外部に引き出した状態で収容される筒状の収容部と、
該収容部の一端側の開口部を閉塞するように設けられ、前記ヒューズの端子に電気的に接続される一方の電極部と、前記収容部に固定されるとともに、弾性部材が設けられる筒状の弾性受け部と、前記収容部に対して移動自在に設けられるとともに、前記弾性部材の放勢力によって弾性受け部から離間する方向に付勢される筒状の張力付与部と、前記収容部または前記張力付与部に設けられ、前記弾性部材が蓄勢された状態の張力付与部に引っ掛けられた前記リード線が電気的に接続される他方の電極部とを有するヒューズ装置に、前記ヒューズを取り付ける際に使用されるヒューズ取付用工具において、前記弾性受け部に係止する第１係止部と、前記張力付与部に係止する第２係止部とが板状部材に連結され、第１係止部は、前記弾性受け部の開口端縁に引っ掛け可能に折り返して形成され、第２係止部は、前記張力付与部の開口端縁に引っ掛け可能に折り返して形成されたことを特徴とする。
Further, according to the present invention, there is provided a fuse including a cylinder, a terminal provided at one end of the cylinder, a lead wire electrically connected to the terminal and led out from the other end of the cylinder. A cylindrical accommodating portion that is accommodated in a state in which the lead wire is pulled out from the opening on the other end side;
A cylindrical shape that is provided so as to close the opening on one end side of the housing portion, is electrically connected to the terminal of the fuse, and is fixed to the housing portion and provided with an elastic member An elastic receiving portion, a cylindrical tension applying portion that is movably provided with respect to the housing portion, and is biased in a direction away from the elastic receiving portion by a releasing force of the elastic member, and the housing portion or The fuse is attached to a fuse device that is provided in the tension applying portion and has the other electrode portion electrically connected to the lead wire that is hooked on the tension applying portion in a state where the elastic member is stored. In the fuse mounting tool used at the time, a first locking portion locked to the elastic receiving portion and a second locking portion locked to the tension applying portion are coupled to the plate-like member, The locking portion is the elastic receiver Is formed by folding so as to be hooked on the opening edge, the second locking portion is characterized in that it is formed by folding so as to be hooked on the opening edge of the tensioning portion.

また、本発明によれば、それぞれにおける前記第１係止部および前記第２係止部は、先端部が、該先端に向かうにしたがって大きく開口するように折り曲げられて形成されるような構成を採用することもできる。
Further, according to the present invention, each of the first locking portion and the second locking portion in each of the first and second locking portions is configured such that the tip end portion is bent so as to open greatly toward the tip end. It can also be adopted.

また、本発明によれば、折り曲げられた前記第１係止部および前記第２係止部の少なくともいずれか一方の先端部の対向面には、張力付与部の外面および内面、もしくは、弾性受け部の外面および内面に対応した係止面が形成されるような構成を採用することもできる。 Further, according to the present invention, the outer surface and the inner surface of the tension applying portion or the elastic receiver is provided on the opposing surface of the tip portion of at least one of the bent first locking portion and the second locking portion. It is also possible to adopt a configuration in which locking surfaces corresponding to the outer surface and the inner surface of the part are formed.

Claims (5)

筒体、該筒体の一端部に設けられる端子、該端子に電気的に接続されるとともに、筒体他端部から導出されるリード線により構成されるヒューズが、前記リード線を他端側の開口部から外部に引き出した状態で収容される筒状の収容部と、
該収容部の一端側の開口部を閉塞するように設けられ、前記ヒューズの端子に電気的に接続される一方の電極部と、
前記収容部に固定されるとともに、弾性部材が設けられる弾性受け部と、
前記収容部に対して移動自在に設けられるとともに、前記弾性部材の放勢力によって弾性受け部から離間する方向に付勢される張力付与部と、
前記収容部または前記張力付与部に設けられ、前記弾性部材が蓄勢された状態の張力付与部に引っ掛けられた前記リード線が電気的に接続される他方の電極部とを有するヒューズ装置に、前記ヒューズを取り付ける際に使用されるヒューズ取付用工具において、
前記弾性受け部に係止する第１係止部が設けられるとともに、前記張力付与部に係止する第２係止部が設けられ、前記弾性受け部と前記張力付与部とが所定の隙間を形成した状態で、前記弾性部材が蓄勢されるように、第１係止部が前記弾性受け部に係止し、第２係止部が前記張力付与部に係止するように構成されることを特徴とするヒューズ取付用工具。 A fuse formed by a cylindrical body, a terminal provided at one end of the cylindrical body, and a lead wire electrically connected to the terminal and led out from the other end of the cylindrical body is connected to the other end side. A cylindrical housing portion that is housed in a state of being pulled out from the opening of
One electrode part provided to close the opening on one end side of the housing part and electrically connected to the terminal of the fuse;
An elastic receiving portion fixed to the housing portion and provided with an elastic member;
A tension applying portion that is movably provided with respect to the housing portion and is urged in a direction away from the elastic receiving portion by a releasing force of the elastic member;
In the fuse device having the other electrode portion electrically connected to the lead wire hooked on the tension applying portion provided in the accommodating portion or the tension applying portion and in which the elastic member is stored, In the fuse mounting tool used when mounting the fuse,
A first locking portion for locking to the elastic receiving portion is provided, and a second locking portion for locking to the tension applying portion is provided, and the elastic receiving portion and the tension applying portion have a predetermined gap. The first locking portion is locked to the elastic receiving portion and the second locking portion is locked to the tension applying portion so that the elastic member is stored in the formed state. A fuse mounting tool characterized by that. 前記他方の電極部が前記収容部に設けられる第１のヒューズ装置に適用される第１のヒューズ取付用工具と、前記他方の電極部が前記張力付与部に設けられる第２のヒューズ装置に適用される第２のヒューズ取付用工具とが一体的に構成されることを特徴とする請求項１に記載のヒューズ取付用工具。   Applied to the first fuse mounting tool applied to the first fuse device in which the other electrode portion is provided in the housing portion, and to the second fuse device in which the other electrode portion is provided to the tension applying portion. The fuse mounting tool according to claim 1, wherein the second fuse mounting tool is integrally formed. 三相配電線のうち、前記ヒューズが前記ヒューズ装置を介していずれの相に電気的に接続されるのかを視認できるように、接続される相の名称が表面に表示されることを特徴とする請求項１または２に記載のヒューズ取付用工具。
The name of the phase to be connected is displayed on the surface of the three-phase distribution line so that it can be visually confirmed which phase the fuse is electrically connected to via the fuse device. Item 3. A fuse mounting tool according to item 1 or 2.
前記第１係止部および前記第２係止部は、先端部が、該先端に向かうにしたがって大きく開口するように折り曲げられて形成されることを特徴とする請求項１乃至３のいずれか１項に記載のヒューズ取付用工具。   The first locking portion and the second locking portion are formed by bending a tip portion so that the tip portion is greatly opened toward the tip. The fuse installation tool as described in the item. 折り曲げられた前記第１係止部および前記第２係止部の先端部の対向面には、張力付与部の外面および内面、もしくは、弾性受け部の外面および内面に対応した係止面が形成されることを特徴とする請求項４に記載のヒューズ取付用工具。   Locked surfaces corresponding to the outer surface and the inner surface of the tension applying portion or the outer surface and the inner surface of the elastic receiving portion are formed on the opposed surfaces of the bent first engaging portion and the distal end portion of the second engaging portion. The fuse mounting tool according to claim 4, wherein the fuse mounting tool is provided.
JP2013021333A 2013-02-06 2013-02-06 Fuse attachment tool Pending JP2015038816A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115240965A (en) * 2022-08-04 2022-10-25 国网安徽省电力有限公司滁州市城郊供电公司 Fuse is used in transformer protection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008262857A (en) * 2007-04-13 2008-10-30 Chugoku Electric Power Co Inc:The Fuse cylinder creation auxiliary tool
JP2009168077A (en) * 2008-01-11 2009-07-30 Hitachi Ltd Cylinder device compression holder, and cylinder device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008262857A (en) * 2007-04-13 2008-10-30 Chugoku Electric Power Co Inc:The Fuse cylinder creation auxiliary tool
JP2009168077A (en) * 2008-01-11 2009-07-30 Hitachi Ltd Cylinder device compression holder, and cylinder device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115240965A (en) * 2022-08-04 2022-10-25 国网安徽省电力有限公司滁州市城郊供电公司 Fuse is used in transformer protection

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