JPH0313967Y2 - - Google Patents
Info
- Publication number
- JPH0313967Y2 JPH0313967Y2 JP3735384U JP3735384U JPH0313967Y2 JP H0313967 Y2 JPH0313967 Y2 JP H0313967Y2 JP 3735384 U JP3735384 U JP 3735384U JP 3735384 U JP3735384 U JP 3735384U JP H0313967 Y2 JPH0313967 Y2 JP H0313967Y2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- contact blade
- wire
- insulated wire
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- YSUIQYOGTINQIN-UZFYAQMZSA-N 2-amino-9-[(1S,6R,8R,9S,10R,15R,17R,18R)-8-(6-aminopurin-9-yl)-9,18-difluoro-3,12-dihydroxy-3,12-bis(sulfanylidene)-2,4,7,11,13,16-hexaoxa-3lambda5,12lambda5-diphosphatricyclo[13.2.1.06,10]octadecan-17-yl]-1H-purin-6-one Chemical compound NC1=NC2=C(N=CN2[C@@H]2O[C@@H]3COP(S)(=O)O[C@@H]4[C@@H](COP(S)(=O)O[C@@H]2[C@@H]3F)O[C@H]([C@H]4F)N2C=NC3=C2N=CN=C3N)C(=O)N1 YSUIQYOGTINQIN-UZFYAQMZSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Description
（産業上の利用分野）
本考案は、被覆の上から絶縁電線を把持して導
体と電気的接続を行うコネクタや、被覆の上から
絶縁電線を把持するクランプ等の絶縁電線把持具
に関するものである。
（従来技術）
従来より、把持体の電線溝内に接触刃を突設
し、この把持体を締結することにより絶縁電線の
被覆内へ前記刃を圧入させて導体と刃とを接続す
る絶縁電線把持具があつたが、この従来の把持具
は、導体と刃との硬度の関係などで、導体が傷つ
き易く、更に塵埃、雨水や湿気などの侵入にとも
なつて、導体を腐食させたり、電気的接触を損ね
たりすることがあつた。また、クランプの場合で
も、導体と刃との硬度の関係などで、導体が傷つ
き易く、更に塵埃、雨水や湿気などの侵入にとも
なつて、導体を腐食させることがあつた。
（考案の目的）
本考案は、上述の欠点を解決するため考案した
もので、把持体とは別体で導体との圧接に適した
接触刃を形成してこれを把持体に固着することに
より、導体と接触してしかも導体を傷つけずに導
体を把持できる絶縁電線把持具を提供することを
目的とするものである。
（考案の構成）
上述の目的を達成するため本考案においては、
絶縁電線７の被覆１０を貫通して導体９と接する
接触刃２４を備えた絶縁電線把持具において、接
触刃２４を導体９と同系統の材料をもつて形成す
ると共に、導体９の硬度より低い硬度に設定し
て、一対の把持体１，２の電線溝１１，１２の少
なくとも一方に固着して絶縁電線把持具を構成す
る。
（考案の実施例）
以下、図面について本考案の実施例を、絶縁電
線と分岐線との接続に用いるコネクタ、あるいは
雷サージ過電圧により接地側金具との間で放電す
るアークホーンと絶縁電線との接続に用いる締付
コネクタについて説明する。
締付コネクタは、それぞれ対をなす把持体１，
２と、締付ボルト３、ナツト４、ばね座金５、平
座金６等を有するもので、これにより絶縁電線７
と分岐線８とを接続するものである。
把持体１，２は導電性材料からなり、絶縁電線
７は素線を所要本数撚り合わせた導体９とポリエ
チレンとセパレータからなる被覆１０とにより形
成されている。
把持体１，２は一側に絶縁電線７の外径と略同
一曲率半径の半円状の電線溝１１，１２を有し、
他側に相互に接するガイド壁１３，１４が立設さ
れ、一方のガイド壁１４の先端部が他方のガイド
壁１３の基部に設けた凹部１５へ嵌脱自在に係合
されていて、横振れを防止すると共に、把持体
１，２が円滑に締付けできるように構成されてい
る。
把持体１，２には、その中央部に締付ボルト３
を挿通するための円形の貫通孔１６，１７が設け
られ、一方の把持体２に形成された貫通孔１７の
外端部には方形孔１８が形成されている。
さらに、貫通孔１６，１７の内端部の把持体
１，２には凹部１９，２０が形成されている。
これら、貫通孔１６，１７に締付ボルト３を挿
通すると、締付ボルト３の頭部近傍に形成した角
筒部２１が把持体２の方形孔１８に嵌合して、締
付ボルト３の回り止めとなる。
コイルスプリング２２は、締付ボルト３に嵌合
し、その両端部が凹部１９，２０内に収納され
る。
又、把持体１の貫通孔１６の外側端面には端子
取付座１ａが形成され、分岐線８の端子２３を接
合すると共に座金５，６を介してナツト４を締付
けることにより分岐線８と把持体１とを電気的接
続している。
第１〜４図の実施例においては、電線溝１１の
中央部に、電線溝１１の長手方向に沿つて、把持
体１と別体に形成した２個の接触刃２４をほぼ平
行に立設する。この接触刃２４の刃先部２４ａは
断面形状を鋭利な三角形に形成し、電線溝１１の
両端部を除く部分へ設ける。さらに、接触刃２４
の周囲には、接触刃２４を囲繞する連続した突条
２５を設ける。
接触刃２４は導体９と同系統の材料で形成す
る。同系統の材料とは、例えばアルミ導体電線に
対してはアルミニウム合金を使用し、銅導体電線
に対しては銅合金を使用する。
また、前記突条２５で囲繞した区画内には特に
撥水性のよいコンパウンド２６（第３図参照）を
充填しておくことが望ましい。
なお、前記電線溝１１に長さＬ（第２，４図参
照）は、接触刃２４の長さＳに対して余裕をもた
せることが望ましく、因に150mm2Ｈ・Ｄ・Ｃ・Ｃ
ポリエチレン絶縁電線の場合、Ｌ−Ｓ≒20mm程度
にすると好結果が得られる。
また、接触刃２４は硬度を、導体９の硬度より
低めに設定する。すなわち一般に使用される硬銅
より線、または硬アルミより線に対しては、接触
刃２４の硬度は実験結果から次の硬度が適してい
る。
(Field of Industrial Application) The present invention relates to a connector that grips an insulated wire from above the sheath to make an electrical connection to a conductor, and an insulated wire gripping device such as a clamp that grips the insulated wire from above the sheath. be. (Prior Art) Conventionally, an insulated wire has been provided with a contact blade protruding into the wire groove of a gripper, and when the gripper is fastened, the blade is press-fitted into the sheath of the insulated wire to connect the conductor and the blade. However, with this conventional gripping tool, the conductor is easily damaged due to the relationship between the hardness of the conductor and the blade, and furthermore, the conductor may corrode due to the intrusion of dust, rainwater, moisture, etc. Electrical contact could be damaged. In addition, even in the case of clamps, the conductor is easily damaged due to the relationship between the hardness of the conductor and the blade, and furthermore, the conductor may corrode due to the intrusion of dust, rainwater, moisture, etc. (Purpose of the invention) The present invention was devised to solve the above-mentioned drawbacks, and by forming a contact blade suitable for pressure contact with a conductor separately from the gripping body and fixing it to the gripping body. An object of the present invention is to provide an insulated wire gripping tool that can contact a conductor and grip the conductor without damaging the conductor. (Structure of the invention) In order to achieve the above-mentioned purpose, the present invention includes the following:
In an insulated wire gripper equipped with a contact blade 24 that penetrates the sheath 10 of the insulated wire 7 and comes into contact with the conductor 9, the contact blade 24 is made of the same material as the conductor 9 and has a hardness lower than that of the conductor 9. The insulated wire gripping tool is configured by setting the hardness to be fixed to at least one of the wire grooves 11 and 12 of the pair of gripping bodies 1 and 2. (Embodiment of the invention) The following describes an embodiment of the invention with reference to the drawings, such as a connector used to connect an insulated wire and a branch line, or a connector used to connect an insulated wire and an arc horn that discharges between a grounding side metal fitting due to a lightning surge overvoltage. The tightening connector used for connection will be explained. The tightening connectors each have a pair of gripping bodies 1,
2, a tightening bolt 3, a nut 4, a spring washer 5, a flat washer 6, etc., and thereby an insulated wire 7
and the branch line 8. The grips 1 and 2 are made of a conductive material, and the insulated wire 7 is made of a conductor 9 made of a required number of twisted wires and a covering 10 made of polyethylene and a separator. The gripping bodies 1 and 2 have semicircular wire grooves 11 and 12 on one side with a radius of curvature that is approximately the same as the outer diameter of the insulated wire 7,
Guide walls 13 and 14 that are in contact with each other are erected on the other side, and the tip of one guide wall 14 is removably engaged with a recess 15 provided at the base of the other guide wall 13, thereby preventing lateral vibration. It is constructed so that the gripping bodies 1 and 2 can be smoothly tightened. The gripping bodies 1 and 2 have a tightening bolt 3 in the center thereof.
Circular through holes 16 and 17 are provided for insertion, and a square hole 18 is formed at the outer end of the through hole 17 formed in one grip body 2. Furthermore, recesses 19 and 20 are formed in the grips 1 and 2 at the inner ends of the through holes 16 and 17, respectively. When the tightening bolt 3 is inserted into these through holes 16 and 17, the square tube part 21 formed near the head of the tightening bolt 3 fits into the square hole 18 of the gripping body 2, and the tightening bolt 3 It stops rotating. The coil spring 22 fits into the tightening bolt 3, and both ends thereof are housed in the recesses 19 and 20. In addition, a terminal mounting seat 1a is formed on the outer end surface of the through hole 16 of the gripping body 1, and the terminal 23 of the branch wire 8 is joined and the nut 4 is tightened through the washers 5 and 6 to secure the branch wire 8 and the grip. It is electrically connected to the body 1. In the embodiment shown in FIGS. 1 to 4, two contact blades 24 formed separately from the gripping body 1 are erected in the central part of the wire groove 11 along the longitudinal direction of the wire groove 11 in substantially parallel to each other. do. The cutting edge portion 24a of the contact blade 24 has a sharp triangular cross-sectional shape, and is provided in a portion of the wire groove 11 excluding both ends. Furthermore, the contact blade 24
A continuous protrusion 25 surrounding the contact blade 24 is provided around the contact blade 24. The contact blade 24 is made of the same material as the conductor 9. The materials of the same type include, for example, an aluminum alloy is used for an aluminum conductor electric wire, and a copper alloy is used for a copper conductor electric wire. Further, it is desirable to fill the compartment surrounded by the protrusion 25 with a particularly water-repellent compound 26 (see FIG. 3). In addition, it is desirable that the length L of the wire groove 11 (see Figures 2 and 4) has a margin with respect to the length S of the contact blade 24, which is 150 mm 2 H, D, C, C.
In the case of polyethylene insulated wires, good results can be obtained by setting L-S≒20 mm. Further, the hardness of the contact blade 24 is set to be lower than the hardness of the conductor 9. That is, based on experimental results, the following hardness is suitable for the contact blade 24 for commonly used hard copper stranded wire or hard aluminum stranded wire.
【表】
そして、導体の種類による締付コネクタの電気
試験における実験結果は次のとおりである。なお
〇は異常なしを、×は異常の発生を示す。ここで
異常なしとは次の(1)〜(3)の条件を満足することで
ある。
(1) 接触刃２４と導体９との導通において、接触
刃２４の先端が被覆１０を突き破り導体９に達
して相互が密着した状態であること。
(2) 接触刃２４と導体９との電気抵抗において、
許容抵抗値が50μΩ以下であること。
(3) 接触刃２４による素線損傷において、導体９
の表層素線がその直径に対して1/10以下の深さ
であること。
そして上記以外の事象を異常の発生とみなす。[Table] The experimental results of electrical tests on tightening connectors based on the type of conductor are as follows. Note that 〇 indicates no abnormality, and × indicates occurrence of abnormality. Here, no abnormality means that the following conditions (1) to (3) are satisfied. (1) In the conduction between the contact blade 24 and the conductor 9, the tip of the contact blade 24 breaks through the coating 10 and reaches the conductor 9, so that they are in close contact with each other. (2) In the electrical resistance between the contact blade 24 and the conductor 9,
The allowable resistance value must be 50μΩ or less. (3) When the wire is damaged by the contact blade 24, the conductor 9
The depth of the surface layer strands is 1/10 or less of its diameter. Events other than the above are considered to be abnormal occurrences.
【表】【table】
【表】
試験結果によれば、導体の絶縁被覆がポリエチ
レンの場合、−20℃の低温下において硬化が著し
くなつて、接触刃の硬度がHV40以上でないと、
接触刃が被覆を貫通しないため、接触刃と導体と
の導通がとれない。また、接触刃の硬度HV86以
上では接触刃の刃先における変形具合が少ないた
め、より線の素線間に沿つて刃先が圧入されない
ので、導体と接触刃との電気抵抗が大きくなつて
好ましくない。そしてまた、接触刃の硬度が導体
の表面硬度より高いと、導体が素線損傷を受けて
好ましくない。
把持体１，２の成型は、通常鋳造成型で導体９
と同系統の合金鋳物で成型される。
従来、実施されているごとく接触刃２４の刃先
部２４ａを切削加工で成型すると、加工コストが
高謄するとともに、把持体１，２と接触刃２４が
一体に形成されていることにより適切な刃先硬度
を、熱処理で得る場合、刃の周囲の把持体１，２
へも、その熱処理の影響が及ぶ場合もあるが、本
考案では、この問題を解決するために、把持体
１，２と別体に接触刃２４を形成し、把持体１，
２へ接触刃２４の基部を固着して一体としたので
ある。
その製造方法としては、把持体１，２と別個に
接触刃２４を例えば、JIS規格のJIS Ｈ 3100に
規定するC1100−Ｐ−１／4H、すなわち、１／
４硬質のタフピツチ銅板あるいはJIS規格のJIS
Ｈ 4000に規定するA5052P、すなわちMg2.2〜
2.8％、Cr0.15〜0.35％のアルミニウム合金板を素
材として押出加工で所定の形状に連続成型し、そ
の素材を所定の長さに切断後、A5052の場合に
は、例えば焼鈍でHV80をHV48程度に軟化処理
を行つて、把持体１の電線溝１１の凹部に接触刃
２４の基部を嵌め込んで固定する。
また、把持体１へ接触刃２４の基部を取付ける
方法としては、把持体１内に接触刃２４の基部を
圧入して嵌め込む方法の他、把持体１内に接触刃
２４の基部を鋳包む方法もある。
第５図は、絶縁電線（図示せず）に分岐線（図
示せず）を接続する締付コネクタの別の実施例を
示すもので、これは締付ボルト３の角筒部２１に
貫通孔２７をあけ、この貫通孔２７に分岐線を挿
入するもので、締付ボルト３の頭部３ａにより分
岐線押さえ板２８を介して、分岐線を把持体１へ
締付けるように構成したものである。
また、第６，７図は、接触刃２４を電線溝１１
の略中央へ一本だけ突設した把持具を示す実施例
図である。
なお第５〜７図中、前記第１〜４図の符号と同
一の符号はそれぞれ同等のものを示すものであ
る。
また前記各実施例の接触刃２４は、把持体１，
２の両方に設けてもよく、この場合は導体９の把
持がより安定する。
（考案の作用）
本実施例で示した締付コネクタは、締付ボルト
３とナツト４の緊締操作によつて電線溝１１，１
２内の絶縁電線７がまず把持され、その後、接触
刃２４の刃先部２４ａがポリエチレンとセパレー
タなどからなる被覆１０を突き破り導体９に達す
る。さらに緊締操作を続けると、接触刃２４の刃
先部２４ａが導体９より軟らかく設定されている
ので、刃先部２４ａは螺旋状をなす素線間に沿つ
て塑性変形しながら導体９内に圧入される。
したがつて接触刃２４と導体９との接触により
絶縁電線７と分岐線８とが電気的にも接続され
る。
また、接触刃２４の周囲に接触刃２４を囲繞す
るように設けた電線溝内の連続した突条２５は、
接触刃２４が導体９の内奥部へ進入するときのぐ
らつきを防ぐ支えとなるとともに、弾力性に富む
被覆に突条２５が圧接されることによりシール効
果を発揮して、被覆１０と電線溝１１，１２に沿
つて侵入した塵埃、雨水や湿気が被覆１０の貫通
個所より滲み込むのを阻止して、導体９を腐食よ
り守る。また、突条２５は接触刃２４による被覆
１０の切断部よりの亀裂の進展を防止することが
できる上に、電気的接続を確実に安定させること
ができる。
また、突条２５で囲繞した区画内にコンパウン
ド２６を充填しておけば、緊締操作とともにコン
パウンド２６が押圧されて接触刃２４と破れてい
る被覆１０の間から鎮体内へ圧入されるため、こ
れにより塵埃、雨水や湿気の進入をさらに効果的
に防止することができる。
なお、前記実施例は、締付コネクタについて説
明をしたが、本考案は、それに限定されるもので
はなく、圧縮コネクタ、圧縮クランプにも適用で
きることは云うまでもない。
（考案の効果）
本考案の絶縁電線把持具は上述の通り、把持体
に固着した接触刃を押圧することにより絶縁電線
の被覆を接触刃が貫通するが、本考案の接触刃の
硬度は導体より低く設定してあるため、導体と接
触刃とを圧接させても導体を傷つける恐れはな
く、電気的、機械的に悪い影響を及ぼす恐れもな
い。
また、コネクタの場合、緊締操作によつて絶縁
電線と分岐線との電気的接続が確実に得られる。
さらに本考案においては接触刃を把持体と別体
に形成し、この別体の接触刃を把持体へ取付ける
ようにしたから、把持体は、安価な材料で製作
し、接触刃のみ導体と同系統の材料で製作すれば
よい。したがつて把持体は、導体の材料に制約さ
れないため量産化が容易で製造コストも低下す
る。上述の通りであるから本考案は産業の発達に
寄与するすぐれた効果がある。[Table] According to the test results, when the insulation coating of the conductor is polyethylene, it hardens significantly at low temperatures of -20℃, and if the hardness of the contact blade is not HV40 or higher,
Since the contact blade does not penetrate the coating, electrical continuity between the contact blade and the conductor cannot be established. Furthermore, if the hardness of the contact blade is HV86 or higher, the degree of deformation at the cutting edge of the contact blade is small, so the cutting edge is not press-fitted along between the strands of the stranded wire, which is undesirable because the electrical resistance between the conductor and the contact blade increases. Furthermore, if the hardness of the contact blade is higher than the surface hardness of the conductor, the conductor may be damaged, which is not preferable. The molding of the gripping bodies 1 and 2 is usually done by casting.
It is molded from the same type of alloy casting. If the cutting edge portion 24a of the contact blade 24 is formed by cutting as has been done in the past, the processing cost will be high, and since the grips 1 and 2 and the contact blade 24 are integrally formed, it will not be possible to obtain an appropriate cutting edge. When hardness is obtained by heat treatment, the grips 1 and 2 around the blade
However, in the present invention, in order to solve this problem, the contact blade 24 is formed separately from the grips 1 and 2, and the contact blades 24 are formed separately from the grips 1 and 2.
The base of the contact blade 24 is fixed to the contact blade 2 to form an integral unit. As for its manufacturing method, the contact blade 24 is manufactured separately from the grips 1 and 2 using, for example, C1100-P-1/4H specified in the JIS standard JIS H 3100, that is, 1/4H.
4 Hard tough pitch copper plate or JIS standard JIS
A5052P specified in H 4000, that is, Mg2.2 ~
An aluminum alloy plate containing 2.8% and 0.15% to 0.35% Cr is continuously formed into a predetermined shape by extrusion processing, and after cutting the material into a predetermined length, in the case of A5052, for example, annealing is performed to convert HV80 to HV48. The base of the contact blade 24 is fitted into the recess of the wire groove 11 of the gripping body 1 and fixed. Further, as a method for attaching the base of the contact blade 24 to the grip body 1, in addition to a method of press-fitting the base of the contact blade 24 into the grip body 1, there is also a method of fitting the base of the contact blade 24 into the grip body 1 by casting. There is a way. FIG. 5 shows another embodiment of a tightening connector for connecting a branch line (not shown) to an insulated wire (not shown), in which a through hole is formed in the rectangular tube part 21 of the tightening bolt 3. 27, and the branch wire is inserted into this through hole 27, and the branch wire is tightened to the gripping body 1 by the head 3a of the tightening bolt 3 via the branch wire holding plate 28. . In addition, FIGS. 6 and 7 show that the contact blade 24 is connected to the wire groove 11.
FIG. 3 is an embodiment diagram showing a gripping tool with only one protruding tool protruding from the center thereof. Note that in FIGS. 5 to 7, the same reference numerals as those in FIGS. 1 to 4 above indicate equivalent components. Further, the contact blade 24 of each of the above embodiments has the grip body 1,
2 may be provided, and in this case, the conductor 9 can be held more stably. (Function of the invention) The tightening connector shown in this embodiment has the wire grooves 11 and 1 by tightening the tightening bolt 3 and nut 4.
The insulated wire 7 in the contact blade 2 is first grasped, and then the cutting edge 24a of the contact blade 24 breaks through the covering 10 made of polyethylene, a separator, etc., and reaches the conductor 9. When the tightening operation is continued further, the cutting edge 24a of the contact blade 24 is set to be softer than the conductor 9, so the cutting edge 24a is press-fitted into the conductor 9 while being plastically deformed along the helical strands. . Therefore, the contact between the contact blade 24 and the conductor 9 also electrically connects the insulated wire 7 and the branch line 8. Further, the continuous protrusion 25 in the wire groove provided around the contact blade 24 so as to surround the contact blade 24 is
It serves as a support to prevent the contact blade 24 from wobbling when it enters the innermost part of the conductor 9, and also exerts a sealing effect by press-contacting the protrusion 25 to the highly elastic coating, thereby sealing the coating 10 and the wire groove. The conductor 9 is protected from corrosion by preventing dust, rainwater, and moisture that have entered along the lines 11 and 12 from penetrating through the coating 10. Moreover, the protruding ridges 25 can prevent the propagation of cracks from the cut portion of the coating 10 by the contact blade 24, and can also reliably stabilize the electrical connection. Furthermore, if the compound 26 is filled in the compartment surrounded by the protrusions 25, the compound 26 will be pressed during the tightening operation and will be press-fitted into the shingle body from between the contact blade 24 and the torn covering 10. This makes it possible to more effectively prevent the entry of dust, rainwater, and moisture. Although the above embodiments have been described with respect to a tightening connector, it goes without saying that the present invention is not limited thereto, and can also be applied to compression connectors and compression clamps. (Effect of the invention) As mentioned above, in the insulated wire gripper of the present invention, the contact blade penetrates the coating of the insulated wire by pressing the contact blade fixed to the gripper, but the hardness of the contact blade of the present invention is that of a conductor. Since it is set lower, there is no risk of damaging the conductor even if the conductor and the contact blade are brought into pressure contact with each other, and there is no risk of adverse electrical or mechanical effects. Further, in the case of a connector, the electrical connection between the insulated wire and the branch wire can be reliably obtained by the tightening operation. Furthermore, in the present invention, the contact blade is formed separately from the gripping body, and this separate contact blade is attached to the gripping body, so the gripping body is made of inexpensive material, and only the contact blade is the same as the conductor. It can be made using the same materials. Therefore, since the gripping body is not limited by the material of the conductor, mass production is easy and manufacturing costs are reduced. As mentioned above, the present invention has an excellent effect of contributing to the development of industry.
第１図は本考案の絶縁電線把持具の使用状態を
示す正面図、第２図はその平面図、第３図は第１
図のＡ−Ａ断面図、第４図はその一方の把持体の
斜視図、第５図は他の実施例を一部断面で示す側
面図、第６図はさらに別の実施例を一部断面で示
す側面図、第７図はその一方の把持体の斜視図で
ある。
１，２……把持体、３……ボルト、４……ナツ
ト、７……絶縁電線、８……分岐線、９……導
体、１０……被覆、１１，１２……電線溝、１
３，１４……ガイド壁、２２……コイルスプリン
グ、２３……端子、２４……接触刃、２４ａ……
刃先部、２５……突条、２６……コンパウンド。
Fig. 1 is a front view showing the insulated wire gripping tool of the present invention in use, Fig. 2 is its top view, and Fig. 3 is the first insulated wire gripping tool.
4 is a perspective view of one of the gripping bodies, FIG. 5 is a side view partially showing another embodiment, and FIG. 6 is a partially sectional view showing another embodiment. A side view shown in cross section, and FIG. 7 is a perspective view of one of the gripping bodies. 1, 2...Gripper, 3...Bolt, 4...Nut, 7...Insulated wire, 8...Branch wire, 9...Conductor, 10...Coating, 11, 12...Wire groove, 1
3, 14... Guide wall, 22... Coil spring, 23... Terminal, 24... Contact blade, 24a...
Blade tip, 25...Protrusion, 26...Compound.
Claims (1)
る接触刃２４を備えた絶縁電線把持具において、
接触刃２４を導体９と同系統の材料をもつて形成
すると共に、導体９の硬度より低い硬度に設定し
て、一対の把持体１，２の電線溝１１，１２の少
なくとも一方に固着したことを特徴とする絶縁電
線把持具。 In an insulated wire gripping tool equipped with a contact blade 24 that penetrates the sheath 10 of the insulated wire 7 and contacts the conductor 9,
The contact blade 24 is made of the same material as the conductor 9, has a hardness lower than that of the conductor 9, and is fixed to at least one of the wire grooves 11, 12 of the pair of grips 1, 2. An insulated wire gripping tool featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3735384U JPS60149074U (en) | 1984-03-15 | 1984-03-15 | Insulated wire gripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3735384U JPS60149074U (en) | 1984-03-15 | 1984-03-15 | Insulated wire gripper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60149074U JPS60149074U (en) | 1985-10-03 |
| JPH0313967Y2 true JPH0313967Y2 (en) | 1991-03-28 |
Family
ID=30543353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3735384U Granted JPS60149074U (en) | 1984-03-15 | 1984-03-15 | Insulated wire gripper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60149074U (en) |
-
1984
- 1984-03-15 JP JP3735384U patent/JPS60149074U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60149074U (en) | 1985-10-03 |
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