JP2009301838A - Electric wire with terminal fitting, and terminal fitting - Google Patents

Electric wire with terminal fitting, and terminal fitting Download PDF

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JP2009301838A
JP2009301838A JP2008154296A JP2008154296A JP2009301838A JP 2009301838 A JP2009301838 A JP 2009301838A JP 2008154296 A JP2008154296 A JP 2008154296A JP 2008154296 A JP2008154296 A JP 2008154296A JP 2009301838 A JP2009301838 A JP 2009301838A
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Prior art keywords
core wire
terminal fitting
wire
barrel
caulking
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JP5150378B2 (en
Inventor
Hiroki Shimoda
洋樹 下田
Hiroki Hirai
宏樹 平井
Tetsuji Tanaka
徹児 田中
Junichi Ono
純一 小野
Takuji Otsuka
拓次 大塚
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Autonetworks Technologies Ltd
株式会社オートネットワーク技術研究所
Sumitomo Wiring Syst Ltd
住友電装株式会社
Sumitomo Electric Ind Ltd
住友電気工業株式会社
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Priority to JP2008154296A priority Critical patent/JP5150378B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric wire with terminal fittings, and the terminal fittings, in which oxide films formed around core wires can be removed with a simple structure. <P>SOLUTION: When a crimper 71 is lowered, advance caulking parts 55 bite into each core wire 21, and at the same time, second caulking parts 51A, 51A at extended end edges of a barrel body 51 come in contact around the core wire 21, and the core wire 21 compressed by the advance caulking parts 55 go under plastic deformation in sliding contact with the second caulking parts 51A, 51A. Due to the sliding contact, an oxide film formed around the core wire 21 is broken. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、端子金具付き電線及び端子金具に関する。   The present invention relates to an electric wire with a terminal fitting and a terminal fitting.
被覆電線に端子金具を取り付けるに際して被覆電線の芯線を端子金具に圧着接続することが行われる。
具体的には、例えば、端子金具をアンビル上に位置決めし、被覆電線の露出させた芯線を端子金具の底板部上に載置する。底板部の両側部からは、一対のバレル部が立ち上げられて形成されており、アンビルの上方に配されたクリンパを降下させると、バレル部の先端部がクリンパに押し下げられ当該先端部が芯線に食い込んでいく。これにより、芯線と端子金具とが圧着接続されるようになっている(特許文献1参照)。
特開2003−31274公報
When attaching the terminal fitting to the covered electric wire, the core wire of the covered electric wire is crimped and connected to the terminal fitting.
Specifically, for example, the terminal fitting is positioned on the anvil, and the exposed core wire of the covered electric wire is placed on the bottom plate portion of the terminal fitting. A pair of barrels are formed from both sides of the bottom plate, and when the crimper placed above the anvil is lowered, the tip of the barrel is pushed down by the crimper, and the tip is cored. Dig into. Thereby, a core wire and a terminal metal fitting are crimped-connected (refer patent document 1).
Japanese Patent Laid-Open No. 2003-31274
ここで、露出した芯線の周囲には、酸化膜が形成されているが、導電性の向上のために酸化膜が破られることが望ましい。特に芯線をアルミ合金製とした電線では、芯線の表面に硬い絶縁膜として酸化膜が形成されるため、それを破って金属間相互の接続状態を得ることが望ましい。そのため、特許文献1のバレル部には、酸化膜を破るためのセレーションが凹設されている。
しかしながら、セレーションにより酸化膜を破る方法では、酸化膜の除去性能が充分でなく、導電性の改良の余地があった。
Here, although an oxide film is formed around the exposed core wire, it is desirable that the oxide film be broken in order to improve conductivity. In particular, in an electric wire having a core wire made of an aluminum alloy, an oxide film is formed as a hard insulating film on the surface of the core wire, so it is desirable to break it to obtain a connection state between metals. Therefore, a serration for breaking the oxide film is recessed in the barrel portion of Patent Document 1.
However, in the method of breaking the oxide film by serration, the removal performance of the oxide film is not sufficient, and there is room for improvement in conductivity.
本発明は上記のような事情に基づいて完成されたものであって、簡易な構成で芯線の周囲に形成されている酸化膜の除去性を高めて導電性を改善できる端子金具付電線及び端子金具を提供することを目的とする。   The present invention has been completed based on the above-described circumstances, and has an electric wire with a terminal fitting and a terminal capable of improving conductivity by improving the removability of an oxide film formed around the core wire with a simple configuration. It aims at providing metal fittings.
本発明の端子金具付き電線は、被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続されている端子金具付き電線であって、前記端子金具の前記バレル部は、前記底板部の両側部から延出されている一対のバレル主体部と、前記各バレル主体部の延出端縁のうちの少なくとも前記芯線の先端側及びこれとは反対側のいずれか一方の延出端縁を残して段差状に延出して形成されたカシメ先行部を有し、前記端子金具の圧着に伴って前記カシメ先行部が前記バレル主体部に先行して前記芯線に食い込むように構成されていることを特徴とする(手段1)。
このような構成とし、端子金具の圧着に伴ってカシメ先行部がバレル主体部に先行して芯線に食い込むことにより、カシメ先行部によって圧縮された芯線がバレル主体部の延出端縁に対して摺接しながら塑性変形するようにすればよい。
In the electric wire with terminal fitting of the present invention, the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and the pair of barrel portions extending from both side portions of the bottom plate portion wraps the core wire. A wire with a terminal fitting that is crimped and connected while plastically deforming a core wire and the terminal fitting, wherein the barrel portion of the terminal fitting is a pair of barrel main portions extending from both side portions of the bottom plate portion And caulking leading formed by extending in a step shape leaving at least one of the extending end edges of the core wire and the opposite side of the extending end edges of the barrel main body portions. And the crimping leading portion is configured to bite into the core wire prior to the barrel main body as the terminal fitting is crimped (means 1).
With such a configuration, the crimping leading portion bites into the core wire in advance of the barrel main body as the terminal fitting is crimped, so that the core wire compressed by the crimping leading portion is against the extended edge of the barrel main portion. What is necessary is just to make it plastically deform while sliding.
また、上記構成の手段1において、前記カシメ先行部は、前記芯線の先端とは反対側の一辺が前記バレル主体部に対して直角に形成される一方、前記芯線の先端側がその先端側にゆくほど漸次芯線に近づく方向に傾斜する三角形状であることを特徴としてもよい(手段2)。
このようにすれば、傾斜部分に芯線が摺接することにより、芯線周囲に形成された酸化膜が破られて、芯線と端子金具との導電性を向上させることができる。
Further, in the means 1 having the above configuration, the caulking leading portion is formed such that one side opposite to the tip of the core wire is formed at right angles to the barrel main body portion, while the tip side of the core wire is directed to the tip side. It may be characterized by a triangular shape that is gradually inclined closer to the core line (means 2).
In this way, when the core wire is in sliding contact with the inclined portion, the oxide film formed around the core wire is broken, and the conductivity between the core wire and the terminal fitting can be improved.
本発明の端子金具付き電線は、被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続されている端子金具付き電線であって、前記端子金具の前記バレル部の延出端部は、前記芯線の先端側ほど前記底板部に近づく傾斜状に形成されていることを特徴とする(手段3)。
このようにすれば、傾斜部分に芯線が摺接することにより、芯線周囲に形成された酸化膜が破られて、芯線と端子金具との導電性を向上させることができる。
また、傾斜部分に摺接した芯線は、軸方向のうち、前記芯線に近づく方向に伸びるから、軸方向の一方にのみ芯線の伸びを生じさせることができる。
In the electric wire with terminal fitting of the present invention, the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and the pair of barrel portions extending from both side portions of the bottom plate portion wraps the core wire. An electric wire with a terminal fitting that is crimped and connected while plastically deforming the core wire and the terminal fitting, wherein the extended end portion of the barrel portion of the terminal fitting is inclined closer to the bottom plate portion toward the distal end side of the core wire (Means 3).
In this way, when the core wire is in sliding contact with the inclined portion, the oxide film formed around the core wire is broken, and the conductivity between the core wire and the terminal fitting can be improved.
Moreover, since the core wire slidably in contact with the inclined portion extends in a direction approaching the core wire in the axial direction, the core wire can be caused to extend only in one of the axial directions.
また、上記構成の手段3において、前記端子金具には、前記被覆電線を絶縁被覆上から支持する電線支持部を有し、前記カシメ先行部の先端は、前記バレル部のうち前記電線支持部側の端部から他端側の端部に向けて前記芯線に近づく方向に傾斜することを特徴としてもよい(手段4)。
このようにすれば、圧着の際に芯線の伸びが生じても電線支持部側については、伸びを生じさせないようにすることができる。
Moreover, in the means 3 having the above-described configuration, the terminal fitting has a wire support portion that supports the covered wire from above the insulation coating, and the tip of the caulking leading portion is on the wire support portion side of the barrel portion. It is good also as a characteristic to incline in the direction which approaches the said core wire toward the edge part of the other end side from the edge part of (1).
If it does in this way, even if extension of a core wire will arise in the case of crimping | bonding, it can be made not to produce elongation about the electric wire support part side.
本発明の端子金具は、被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続される端子金具であって、前記端子金具の前記バレル部は、前記底板部の両側部から延出されている一対のバレル主体部と、前記各バレル主体部の延出端縁のうちの少なくとも前記芯線の先端側及びこれとは反対側のいずれか一方の延出端縁を残して段差状に延出して形成されたカシメ先行部を有し、前記端子金具の圧着に伴って前記カシメ先行部が前記バレル主体部に先行して前記芯線に食い込むと共に、前記カシメ先行部によって圧縮された前記芯線が前記バレル主体部の延出端縁に対して摺接しながら塑性変形するように構成されていることを特徴とする(手段5)。
このような構成とし、端子金具の圧着に伴ってカシメ先行部がバレル主体部に先行して芯線に食い込むことにより、カシメ先行部によって圧縮された芯線がバレル主体部の延出端縁に対して摺接しながら塑性変形するようにすればよい。
In the terminal fitting of the present invention, the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and the core wire is arranged such that a pair of barrel portions extending from both side portions of the bottom plate portion wraps the core wire. A terminal fitting that is crimped and connected while plastically deforming the terminal fitting, wherein the barrel portion of the terminal fitting includes a pair of barrel main portions extending from both sides of the bottom plate portion, and each barrel. A caulking leading portion formed to extend in a step shape leaving at least one of the extending end edge of the core wire and the opposite side of the extending end edge of the main body; As the terminal fitting is crimped, the caulking leading portion bites into the core wire prior to the barrel main portion, and the core wire compressed by the caulking leading portion is against the extended edge of the barrel main portion. Plastic deformation while sliding Characterized in that it is configured urchin (unit 5).
With such a configuration, the crimping leading portion bites into the core wire in advance of the barrel main body as the terminal fitting is crimped, so that the core wire compressed by the crimping leading portion is against the extended edge of the barrel main portion. What is necessary is just to make it plastically deform while sliding.
上記構成の手段5において、前記カシメ先行部は、前記芯線の先端とは反対側の一辺が前記バレル主体部に対して直角に形成される一方、前記芯線の先端側がその先端側にゆくほど漸次芯線に近づく方向に傾斜する三角形状であることを特徴としてもよい(手段6)。
このようにすれば、傾斜部分に芯線が摺接することにより、芯線周囲に形成された酸化膜が破られて、芯線と端子金具との導電性を向上させることができる。
In the means 5 configured as described above, the caulking leading portion is formed such that one side opposite to the tip of the core wire is formed at a right angle to the barrel main portion, while the tip side of the core wire gradually approaches the tip side. It may be characterized by a triangular shape inclined in a direction approaching the core wire (means 6).
In this way, when the core wire is in sliding contact with the inclined portion, the oxide film formed around the core wire is broken, and the conductivity between the core wire and the terminal fitting can be improved.
本発明の端子金具は、被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続されている端子金具であって、前記端子金具の前記バレル部の延出端部は、前記芯線の先端側ほど前記底板部に近づく傾斜状に形成されていることを特徴とする(手段7)。
このようにすれば、傾斜部分に芯線が摺接することにより、芯線周囲に形成された酸化膜が破られて、芯線と端子金具との導電性を向上させることができる。
また、傾斜部分に摺接した芯線は、軸方向のうち、前記芯線に近づく方向に伸びるから、軸方向の一方にのみ芯線の伸びを生じさせることができる。
In the terminal fitting of the present invention, the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and the core wire is arranged such that a pair of barrel portions extending from both side portions of the bottom plate portion wraps the core wire. The terminal fitting is crimped and connected to the terminal fitting while being plastically deformed, and the extended end portion of the barrel portion of the terminal fitting is formed in an inclined shape closer to the bottom plate portion toward the tip end side of the core wire. (Means 7).
In this way, when the core wire is in sliding contact with the inclined portion, the oxide film formed around the core wire is broken, and the conductivity between the core wire and the terminal fitting can be improved.
Moreover, since the core wire slidably in contact with the inclined portion extends in a direction approaching the core wire in the axial direction, the core wire can be caused to extend only in one of the axial directions.
上記構成の手段7において、前記端子金具には、前記被覆電線を絶縁被覆上から支持する電線支持部を有し、前記カシメ先行部の先端は、前記バレル部のうち前記電線支持部側の端部から他端側の端部に向けて前記芯線に近づく方向に傾斜することを特徴とする(手段8)。
このようにすれば、圧着の際に芯線の伸びが生じても電線支持部側については、伸びを生じさせないようにすることができる。
In the means 7 having the above-described configuration, the terminal fitting has an electric wire support portion for supporting the covered electric wire from above the insulating coating, and the tip of the caulking leading portion is an end of the barrel portion on the electric wire support portion side. Inclining in a direction approaching the core wire from the portion toward the end on the other end side (means 8).
If it does in this way, even if extension of a core wire will arise in the case of crimping | bonding, it can be made not to produce elongation about the electric wire support part side.
手段1及び手段5の構成によれば、バレル部の形状を変えるという簡易な構成で、芯線がバレル主体部の延出端縁に摺接する際に、芯線周囲に形成された酸化膜が破られるから、芯線の周囲に形成されている酸化膜の除去性を高めて芯線と端子金具との導電性を改善できる。   According to the configuration of the means 1 and the means 5, the oxide film formed around the core wire is broken when the core wire is in sliding contact with the extended end edge of the barrel main body portion with a simple configuration in which the shape of the barrel portion is changed. Therefore, the removability of the oxide film formed around the core wire can be improved to improve the conductivity between the core wire and the terminal fitting.
手段3及び手段7の構成によれば、バレル部の形状を変えるという簡易な構成で、芯線が傾斜部分に摺接する際に、芯線周囲に形成された酸化膜が破られるから、芯線の周囲に形成されている酸化膜の除去性を高めて芯線と端子金具との導電性を改善できる。   According to the configuration of the means 3 and the means 7, the oxide film formed around the core wire is broken when the core wire slides on the inclined portion with a simple configuration in which the shape of the barrel portion is changed. The removability of the formed oxide film can be improved and the conductivity between the core wire and the terminal fitting can be improved.
<実施形態1>
以下、本発明を具体化した実施形態1の端子金具付き電線10について、図1〜図9を参照して説明する。
本実施形態の端子金具付き電線10は、図1に示すように、被覆電線20の端末部に端子金具30が圧着接続されてなり、例えば電気自動車において走行用の動力源を構成するバッテリ、インバータ、モータなどの装置(図示せず)の間に配索されるものである。
<Embodiment 1>
Hereinafter, the electric wire 10 with a terminal metal fitting of Embodiment 1 which actualized this invention is demonstrated with reference to FIGS.
As shown in FIG. 1, the electric wire 10 with terminal metal fittings of the present embodiment is formed by connecting a terminal metal fitting 30 to a terminal portion of a covered electric wire 20, for example, a battery and an inverter constituting a power source for traveling in an electric vehicle. The device is routed between devices (not shown) such as a motor.
被覆電線20は、アルミニウム合金からなる金属素線21Aを螺旋状に撚り合わせてなる芯線21を樹脂製の絶縁被覆22(絶縁層)で被覆したものであり、その端末部においては、絶縁被覆22が剥き取られて芯線21が露出されている。なお、芯線21には、アルミニウム合金以外にも、他の種類の金属を用いてもよい。   The covered electric wire 20 is obtained by covering a core wire 21 formed by twisting metal strands 21A made of an aluminum alloy in a spiral shape with a resin insulating coating 22 (insulating layer). Is peeled off and the core wire 21 is exposed. In addition to the aluminum alloy, other types of metals may be used for the core wire 21.
端子金具30は、いわゆるオープンバレル型であって、箱型の端子部31と、端子部31と連続し被覆電線20が接続される電線接続部40とからなり、アルミ製よりも高い強度が得られる銅合金製とされている。   The terminal fitting 30 is a so-called open barrel type, and includes a box-shaped terminal portion 31 and a wire connecting portion 40 that is continuous with the terminal portion 31 and to which the covered electric wire 20 is connected, and has higher strength than aluminum. Made of copper alloy.
端子部31は、箱型の雌端子金具30であって、図示しない雄端子が挿入孔31Aに挿入されることにより、電気的接続が図られる。
電線接続部40は、被覆電線20を保持する電線支持部41と、芯線21と接続される芯線接続部45と、を有する。
The terminal portion 31 is a box-shaped female terminal fitting 30, and electrical connection is achieved by inserting a male terminal (not shown) into the insertion hole 31A.
The electric wire connection portion 40 includes an electric wire support portion 41 that holds the covered electric wire 20 and a core wire connection portion 45 that is connected to the core wire 21.
電線支持部41は、芯線接続部45から連続した底板の左右両側縁から一対のカシメ片41A,41Aが立ち上げられてなり、これらの一対のカシメ片41A,41Aを芯線21側に湾曲させることにより、被覆電線20が離脱や位置ずれしないように保持されている。   The electric wire support portion 41 has a pair of caulking pieces 41A and 41A raised from the left and right side edges of the bottom plate continuous from the core wire connecting portion 45, and the pair of caulking pieces 41A and 41A are bent toward the core wire 21 side. Thus, the covered electric wire 20 is held so as not to be detached or displaced.
芯線接続部45は、半円筒形状の底板部46と、底板部46の両側部から延出されてなる一対のバレル部50,50と、からなる。   The core wire connection portion 45 includes a semi-cylindrical bottom plate portion 46 and a pair of barrel portions 50 and 50 extending from both side portions of the bottom plate portion 46.
バレル部50は、図3に示すように、底板部46から延出したバレル主体部51と、バレル主体部51に先行して芯線21をかしめるカシメ先行部55と、を有する。なお、図3は、電線接続部40の部分における金属板材の打ち抜き加工後の展開形状(端子金具原板)である。
バレル主体部51は、前後方向に長い長方形状をなし、底板部46の両側部からそれぞれ外方(幅方向)に延出されている。
As shown in FIG. 3, the barrel portion 50 includes a barrel main portion 51 extending from the bottom plate portion 46 and a caulking leading portion 55 that caulks the core wire 21 prior to the barrel main portion 51. FIG. 3 shows a developed shape (terminal metal plate) after the punching process of the metal plate material at the wire connecting portion 40.
The barrel main body 51 has a rectangular shape that is long in the front-rear direction, and extends outward (in the width direction) from both side portions of the bottom plate portion 46.
カシメ先行部55は、バレル主体部51よりも小さい長方形状をなし、バレル主体部51から更に外方(幅方向)に延出されている。具体的には、カシメ先行部55は、前後方向及び幅方向の双方でバレル主体部51よりも短くされた長方形状となっており、バレル主体部51の延出端縁51A,51Aを前後共に等距離だけ残すように短くされた位置51B,51Bから段差状に外方に延出されている。このカシメ先行部55の延出端部55A(幅方向の端部)が、圧着の際に最初に芯線21に食い込む第1カシメ部55Aとなっており、バレル主体部51の延出端縁51A,51Aが第1カシメ部55Aに遅れて芯線21に食い込む第2カシメ部51A,51Aとされている。したがって、この第2カシメ部51A,51Aが本発明の構成の「バレル主体部の延出端縁」に相当する。
そして、芯線21がバレル部50に圧着された際には、このカシメ先行部55の全体及び第2カシメ部51A,51Aの部分が芯線21の内部に食い込むことになる。
The caulking leading portion 55 has a rectangular shape that is smaller than the barrel main portion 51 and extends further outward (in the width direction) from the barrel main portion 51. Specifically, the caulking leading portion 55 has a rectangular shape that is shorter than the barrel main portion 51 in both the front-rear direction and the width direction, and the extended end edges 51A and 51A of the barrel main portion 51 are both front and rear. Steps 51B and 51B that are shortened so as to leave only an equal distance extend outward in a stepped shape. An extension end portion 55A (end portion in the width direction) of the caulking leading portion 55 is a first caulking portion 55A that first bites into the core wire 21 at the time of pressure bonding, and an extension end edge 51A of the barrel main body portion 51. , 51A are second caulking portions 51A, 51A that bite into the core wire 21 after the first caulking portion 55A. Accordingly, the second caulking portions 51A and 51A correspond to the “extending end edge of the barrel main portion” of the configuration of the present invention.
When the core wire 21 is pressure-bonded to the barrel portion 50, the entire caulking leading portion 55 and the portions of the second caulking portions 51A and 51A bite into the core wire 21.
(端子金具付き電線の圧着方法)
端子原板に圧着工程が行えるように曲げ加工を施す(図2参照)。
図2に示すように、被覆電線20の露出した芯線21を、曲げ加工を施した端子金具30の電線接続部40に載置した状態で、端子金具30をアンビル70上に位置決めし、アンビル70及び端子金具30の上方に配されたクリンパ71を下降させる。
(Method for crimping wires with terminal fittings)
Bending is performed on the terminal original plate so that a crimping process can be performed (see FIG. 2).
As shown in FIG. 2, the terminal fitting 30 is positioned on the anvil 70 in a state where the exposed core wire 21 of the covered electric wire 20 is placed on the wire connecting portion 40 of the bent terminal fitting 30. Then, the crimper 71 disposed above the terminal fitting 30 is lowered.
すると、端子金具30のバレル部50,50が、クリンパ71の内面形状に応じて芯線21を包み込むような形状に変形していく。そして、図4に示すように、カシメ先行部55の第1カシメ部55Aが芯線21の上部周面に突き当てられて芯線21が変形する。このときの変形は、前後方向には、図5に示すように、カシメ先行部55に芯線21が圧縮されることにより、芯線21は、芯線21の圧縮されていない方向に逃げが生じ(図5の矢印方向)、このときの逃げにより第1カシメ部55Aと芯線21の間が擦れる。   Then, the barrel portions 50, 50 of the terminal fitting 30 are deformed into a shape that wraps the core wire 21 according to the inner surface shape of the crimper 71. As shown in FIG. 4, the first caulking portion 55 </ b> A of the caulking leading portion 55 is abutted against the upper peripheral surface of the core wire 21, and the core wire 21 is deformed. In the deformation at this time, in the front-rear direction, as shown in FIG. 5, the core wire 21 is compressed by the caulking leading portion 55, so that the core wire 21 escapes in the direction in which the core wire 21 is not compressed (see FIG. 5). 5), the clearance between the first caulking portion 55A and the core wire 21 is rubbed by the escape at this time.
そして、さらにクリンパ71を下降させると、図6に示すように、カシメ先行部55の全体が芯線21内部に食い込むとともに、バレル主体部51の先端の第2カシメ部51A,51Aが芯線21の周囲に当接し、芯線21が第2カシメ部51A,51Aによって押し付けられる。これにより、図7に示すように、カシメ先行部55によって圧縮された芯線21が第2カシメ部51A,51A側に逃げるとともに、この第2カシメ部51A,51Aにて芯線21が押し付けられるから、芯線21は、バレル主体部51の第2カシメ部51A,51A(延出端縁)に対して摺接しながら塑性変形して伸びが生じる。このときの摺接により、芯線21と第2カシメ部51A,51Aとの間が擦れ、芯線21の周囲に形成されている酸化膜が破られて導電性を向上させることができる。
なお、芯線21の伸びが生じた部分は、バレル部50,50により圧縮されているため、芯線21の伸びと一緒に当該部分の芯線21と接している第1カシメ部55A及び第2カシメ部51A,51A(延出端縁)の部分についてもやや伸びが生じるが、相対的な伸びの大きさが異なるため、芯線21と第2カシメ部51A,51Aとの間に擦れが生じて酸化膜が破られるようになっている。
When the crimper 71 is further lowered, as shown in FIG. 6, the entire caulking leading portion 55 bites into the core wire 21, and the second caulking portions 51 </ b> A and 51 </ b> A at the tip of the barrel main body 51 are surrounded by the core wire 21. The core wire 21 is pressed by the second caulking portions 51A and 51A. Accordingly, as shown in FIG. 7, the core wire 21 compressed by the caulking leading portion 55 escapes to the second caulking portion 51A, 51A side, and the core wire 21 is pressed by the second caulking portion 51A, 51A. The core wire 21 is plastically deformed while being in sliding contact with the second caulking portions 51A and 51A (extended end edges) of the barrel main body 51, and elongation occurs. By the sliding contact at this time, the core wire 21 and the second caulking portions 51A and 51A are rubbed, and the oxide film formed around the core wire 21 is broken, so that the conductivity can be improved.
Since the portion where the core wire 21 is stretched is compressed by the barrel portions 50, 50, the first caulking portion 55A and the second caulking portion which are in contact with the core wire 21 of the portion together with the stretch of the core wire 21 are compressed. 51A and 51A (extension edge) are also slightly elongated, but the relative elongation is different, so that rubbing occurs between the core wire 21 and the second caulking portions 51A and 51A, and the oxide film. Has been broken.
そして、さらにクリンパ71を下降させると、図8に示すように、カシメ先行部55の全体に加えて第2カシメ部51A,51Aについても芯線21内部に食い込む。
このとき、図9に示すように、第2カシメ部51A,51Aに芯線21が圧縮されることにより、芯線21は、芯線21の圧縮されていない方向に逃げが生じ(図9の矢印方向)、このときの逃げにより第2カシメ部51A,51Aと芯線21の間が擦れる。
そして、これにより、端子金具付き電線の圧着が終了する。
なお、説明を省略したが、クリンパ71は、電線支持部41についてもかしめるようになっており、上記したクリンパ71の下降により、上記した圧着とほぼ同時に被覆電線20が電線支持部41にかしめられるようになっている。
When the crimper 71 is further lowered, as shown in FIG. 8, the second caulking portions 51 </ b> A and 51 </ b> A bite into the core wire 21 in addition to the entire caulking leading portion 55.
At this time, as shown in FIG. 9, the core wire 21 is compressed by the second caulking portions 51 </ b> A and 51 </ b> A, so that the core wire 21 escapes in the direction in which the core wire 21 is not compressed (the arrow direction in FIG. 9). The second caulking portions 51A and 51A and the core wire 21 are rubbed by the escape at this time.
And thereby, crimping | compression-bonding of the electric wire with a terminal metal fitting is complete | finished.
Although explanation is omitted, the crimper 71 is also caulked with respect to the wire support portion 41, and the covered wire 20 is caulked to the wire support portion 41 almost simultaneously with the above-described crimping due to the lowering of the above-described crimper 71. It is supposed to be.
このように、本実施形態によれば、カシメ先行部55によって圧縮された芯線21がバレル主体部51の第2カシメ部51A,51A(延出端縁)に対して摺接しながら塑性変形するように構成されている。したがって、芯線21が第2カシメ部51A,51A(延出端縁)に摺接する際に、芯線21周囲に形成された酸化膜が破られて、芯線21と端子金具30との導電性を向上させることができる。   Thus, according to the present embodiment, the core wire 21 compressed by the caulking leading portion 55 is plastically deformed while being in sliding contact with the second caulking portions 51A and 51A (extended end edges) of the barrel main portion 51. It is configured. Therefore, when the core wire 21 is in sliding contact with the second caulking portions 51A and 51A (extended end edges), the oxide film formed around the core wire 21 is broken and the conductivity between the core wire 21 and the terminal fitting 30 is improved. Can be made.
<実施形態2>
次に、本発明の実施形態2を図10ないし図18を参照して説明する。
実施形態1の端子金具30は、カシメ先行部55が長方形状であったが、実施形態2の端子金具30は、カシメ先行部155が三角形状をなす構成である。なお、実施形態1と同一の構成については、同一の符号を付して説明を省略する。
<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
In the terminal fitting 30 of the first embodiment, the caulking leading portion 55 has a rectangular shape, but in the terminal fitting 30 of the second embodiment, the caulking leading portion 155 has a triangular shape. In addition, about the structure same as Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.
カシメ先行部155は、図10に示すように、直角三角形状をなし、電線支持部41側(芯線21の先端側とは反対側)の一辺155Bがバレル主体部151の段差部分である第2カシメ部151A(延出端縁)に対して直角に立ち上げられて形成される一方、端子部31側(芯線21の先端側)がその端子部31側にゆくほど漸次芯線21(図10では、底板部46側)に近づく方向に傾斜する傾斜部155Aとされている。   As shown in FIG. 10, the caulking leading portion 155 has a right triangle shape, and one side 155 </ b> B of the wire support portion 41 side (the side opposite to the tip side of the core wire 21) is a step portion of the barrel main portion 151. While the crimping portion 151A (extension edge) is raised at a right angle, the terminal portion 31 side (the distal end side of the core wire 21) gradually moves toward the terminal portion 31 side, and gradually becomes the core wire 21 (in FIG. 10). , The bottom plate portion 46 side) is an inclined portion 155A that is inclined in a direction approaching.
(端子金具付き電線の圧着方法)
被覆電線20の露出した芯線21を、曲げ加工を施した端子金具30の電線接続部40に載置した状態で、端子金具30をアンビル70上に位置決めし、アンビル70及び端子金具30の上方に配されたクリンパ71を下降させる(図2)。すると、端子金具30のバレル部150,150が、クリンパ71の内面形状に応じて芯線21を包み込むような形状に変形していく。そして、図11に示すように、カシメ先行部155の先端部のエッジ部分155Cが芯線21の上部周面に突き当てられて芯線21が変形する。このときの変形は、芯線21の前後方向には、図12に示すように、芯線21が圧縮されて芯線21とエッジ部分155Cとの間に擦れが生じ、芯線21の周囲の酸化膜が破られる。
(Method for crimping wires with terminal fittings)
With the exposed core wire 21 of the covered wire 20 placed on the wire connection portion 40 of the bent terminal fitting 30, the terminal fitting 30 is positioned on the anvil 70 and above the anvil 70 and the terminal fitting 30. The arranged crimper 71 is lowered (FIG. 2). Then, the barrel portions 150 and 150 of the terminal fitting 30 are deformed into a shape that wraps the core wire 21 according to the inner surface shape of the crimper 71. Then, as shown in FIG. 11, the edge portion 155 </ b> C at the tip of the caulking leading portion 155 is abutted against the upper peripheral surface of the core wire 21, and the core wire 21 is deformed. As shown in FIG. 12, the deformation at this time is such that the core wire 21 is compressed and rubbed between the core wire 21 and the edge portion 155C in the longitudinal direction of the core wire 21, and the oxide film around the core wire 21 is broken. It is done.
さらにクリンパ71を下降させると、図13に示すように、カシメ先行部155の傾斜部155Aが芯線21内部に食い込んでいき、図14に示すように、傾斜部155Aに当接した芯線21が圧縮されることで、芯線21は、芯線21の前方(図14の矢印方向)に逃げが生じる。そして、この逃げにより、芯線21と傾斜部155Aとの間に擦れが生じる。この逃げは、クリンパ71が下降するにしたがって、傾斜部155Aの全体に亘って継続して生じるから、擦れも、傾斜部155Aの全体に亘って継続して生じる。したがって、傾斜部155Aの全体を使って芯線21周囲に形成された酸化膜を破ることができ、芯線21と端子金具30との導電性を向上させることができる。   When the crimper 71 is further lowered, as shown in FIG. 13, the inclined portion 155A of the caulking leading portion 155 bites into the core wire 21, and as shown in FIG. 14, the core wire 21 in contact with the inclined portion 155A is compressed. As a result, the core wire 21 escapes in front of the core wire 21 (in the direction of the arrow in FIG. 14). Then, due to this escape, rubbing occurs between the core wire 21 and the inclined portion 155A. As the crimper 71 descends, this escape continuously occurs over the entire inclined portion 155A, and thus rubbing also continues throughout the entire inclined portion 155A. Therefore, the oxide film formed around the core wire 21 can be broken using the entire inclined portion 155A, and the conductivity between the core wire 21 and the terminal fitting 30 can be improved.
また、傾斜部155Aによる芯線21の伸びは、前方に生じるようになっているから、電線支持部41で固定される後方の部分については、芯線21の伸びによる影響が生じないようになっている。   Moreover, since the elongation of the core wire 21 by the inclined portion 155A occurs in the front, the rear portion fixed by the wire support portion 41 is not affected by the elongation of the core wire 21. .
そして、図15に示すように、さらにクリンパ71を下降させると、図16に示すように、カシメ先行部155の全体が芯線21内部に食い込むとともに、バレル主体部151の第2カシメ部151A(延出端縁)が芯線21の周囲に当接し、芯線21を押し付ける。これにより、芯線21は、バレル主体部151の第2カシメ部151A(延出端縁)に対して摺接しながら塑性変形して伸びが生じる。このときの摺接により、芯線21と第2カシメ部151Aとの間が擦れ、芯線21の周囲に形成されている酸化膜が破られる。   Then, as shown in FIG. 15, when the crimper 71 is further lowered, as shown in FIG. 16, the entire caulking leading portion 155 bites into the inside of the core wire 21 and the second caulking portion 151A (extension of the barrel main body portion 151). The leading edge) contacts the periphery of the core wire 21 and presses the core wire 21. Thereby, the core wire 21 is plastically deformed while being in sliding contact with the second caulking portion 151 </ b> A (extended end edge) of the barrel main body portion 151, and elongation occurs. The sliding contact at this time rubs between the core wire 21 and the second caulking portion 151 </ b> A, and the oxide film formed around the core wire 21 is broken.
そして、さらにクリンパ71を下降させると、図17,図18に示すように、カシメ先行部155の全体に加えて第2カシメ部151Aについても芯線21内部に食い込み、このときの芯線21の後方への逃げ(図18の矢印方向)により、第2カシメ部151Aと芯線21の間が擦れる。
そして、これにより、端子金具付き電線の圧着が終了する。
When the crimper 71 is further lowered, as shown in FIGS. 17 and 18, the second caulking portion 151A in addition to the entire caulking leading portion 155 also bites into the core wire 21, and to the rear of the core wire 21 at this time Due to the relief (in the direction of the arrow in FIG. 18), the second caulking portion 151A and the core wire 21 are rubbed.
And thereby, crimping | compression-bonding of the electric wire with a terminal metal fitting is complete | finished.
このように、本実施形態によれば、傾斜部155A(傾斜部分)に芯線21が摺接することにより、芯線21周囲に形成された酸化膜が破られて、芯線21と端子金具30との導電性を向上させることができる。   Thus, according to the present embodiment, when the core wire 21 is in sliding contact with the inclined portion 155 </ b> A (inclined portion), the oxide film formed around the core wire 21 is broken, and conduction between the core wire 21 and the terminal fitting 30 is performed. Can be improved.
<実施形態3>
本発明の実施形態3を図19ないし図27を参照して説明する。
実施形態3は、図19に示すように、バレル部250,250の延出端部の軸方向における前端から後端まで(延出端部のうち軸方向の前縁から後縁までの全ての部分)が、芯線21の先端側ほど底板部46に近づく傾斜部255Aが形成(傾斜状に形成)されている。
<Embodiment 3>
A third embodiment of the present invention will be described with reference to FIGS.
In the third embodiment, as shown in FIG. 19, from the front end to the rear end in the axial direction of the extending ends of the barrel portions 250, 250 (all of the extending end portions from the front edge to the rear edge in the axial direction). An inclined portion 255A that is closer to the bottom plate portion 46 is formed (formed in an inclined shape) toward the tip end side of the core wire 21.
(端子金具付き電線の圧着方法)
被覆電線20の露出した芯線21を、曲げ加工を施した端子金具30の電線接続部40に載置した状態で、端子金具30をアンビル70上に位置決めし、アンビル70及び端子金具30の上方に配されたクリンパ71を下降させる。すると、端子金具30のバレル部250,250が、クリンパ71の内面形状に応じて芯線21を包み込むような形状に変形していく。そして、図20に示すように、バレル部250,250の先端部のエッジ部分が芯線21の上部周面に突き当てられて芯線21が変形する。このときの変形は、芯線21の前後方向には、図21に示すように、芯線21が圧縮されて芯線21とエッジ部分との間に擦れが生じ、酸化膜が破られる。
(Method for crimping wires with terminal fittings)
With the exposed core wire 21 of the covered wire 20 placed on the wire connection portion 40 of the bent terminal fitting 30, the terminal fitting 30 is positioned on the anvil 70 and above the anvil 70 and the terminal fitting 30. The arranged crimper 71 is lowered. Then, the barrel portions 250 and 250 of the terminal fitting 30 are deformed into a shape that wraps the core wire 21 according to the inner surface shape of the crimper 71. And as shown in FIG. 20, the edge part of the front-end | tip part of barrel part 250,250 is abutted against the upper peripheral surface of the core wire 21, and the core wire 21 deform | transforms. In the deformation at this time, as shown in FIG. 21, in the front-rear direction of the core wire 21, the core wire 21 is compressed, rubbing occurs between the core wire 21 and the edge portion, and the oxide film is broken.
さらにクリンパ71を下降させると、図22に示すように、バレル部250,250の先端部が芯線21内部に食い込んでいき、図23に示すように、傾斜部255Aに当接した芯線21が圧縮されることで芯線21の前方に逃げが生じ、これにより、芯線21と傾斜部255Aとの間に擦れが生じる。この逃げは、クリンパ71が下降するにしたがって、傾斜部255Aの全体に亘って継続して生じるから、擦れも、傾斜部255Aの全体に亘って継続して生じる。したがって、傾斜部255Aの全体を使って芯線21周囲に形成された酸化膜を破ることができ、芯線21と端子金具30との導電性を向上させることができる。   When the crimper 71 is further lowered, the tip portions of the barrel portions 250 and 250 bite into the core wire 21 as shown in FIG. 22, and the core wire 21 in contact with the inclined portion 255A is compressed as shown in FIG. As a result, escape occurs in front of the core wire 21, and thus, rubbing occurs between the core wire 21 and the inclined portion 255 </ b> A. As the crimper 71 descends, this escape continuously occurs over the entire inclined portion 255A, and thus rubbing also continues throughout the entire inclined portion 255A. Therefore, the oxide film formed around the core wire 21 can be broken using the entire inclined portion 255A, and the conductivity between the core wire 21 and the terminal fitting 30 can be improved.
そして、図24に示すように、さらにクリンパ71を下降させると、図25に示すように、傾斜部255Aの全体が芯線21内部に食い込む。
そして、さらにクリンパ71を下降させると、図26,図27に示すように、傾斜部255Aの全体が更に芯線21内部に食い込み、端子金具付き電線の圧着が終了する。
Then, as shown in FIG. 24, when the crimper 71 is further lowered, the entire inclined portion 255A bites into the core wire 21 as shown in FIG.
When the crimper 71 is further lowered, as shown in FIGS. 26 and 27, the entire inclined portion 255A further bites into the core wire 21, and the crimping of the electric wire with terminal fitting is completed.
このように、本実施形態によれば、傾斜部255A(傾斜部分)に芯線21が摺接することにより、芯線21周囲に形成された酸化膜が破られて、芯線21と端子金具30との導電性を向上させることができる。   As described above, according to the present embodiment, when the core wire 21 is in sliding contact with the inclined portion 255 </ b> A (inclined portion), the oxide film formed around the core wire 21 is broken, and the conduction between the core wire 21 and the terminal fitting 30 is performed. Can be improved.
また、傾斜部255Aによる芯線21の伸びは、前方に生じるようになっているから、電線支持部41で固定される後方の部分については、芯線21の伸びによる影響が生じないようになっている。   In addition, since the elongation of the core wire 21 by the inclined portion 255A occurs in the front, the rear portion fixed by the wire support portion 41 is not affected by the elongation of the core wire 21. .
<他の実施形態>
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
(1)実施形態1の構成に代えて、外方(延出方向)ほど小さくなる長方形状のカシメ先行部を多段に構成するようにしてもよい。これにより、芯線21を摺接させる延出端縁が複数設けられるから、複数段の段差(延出端縁)に摺接させて芯線21の酸化膜を破る構成としてもよい。
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Instead of the configuration of the first embodiment, a rectangular caulking leading portion that becomes smaller outward (extending direction) may be configured in multiple stages. As a result, a plurality of extended end edges are provided to slidably contact the core wire 21, so that the oxide film of the core wire 21 may be broken by slidably contacting a plurality of steps (extended end edges).
(2)上記実施形態では、電線支持部41の圧着は、芯線の圧着とほぼ同時にされることとしたが、これに限らず、例えば、芯線21の圧着に先立って電線支持部41の圧着を行っておいてもよい。この場合、実施形態2,3のように、傾斜部155A,255Aにより、圧着の際に芯線21が芯線21の先端側に伸びるように構成すれば、後方で圧着された電線支持部41に与える影響を少なくすることが可能になる。   (2) In the above embodiment, the crimping of the wire support portion 41 is performed almost simultaneously with the crimping of the core wire. However, the present invention is not limited to this. For example, the crimping of the wire support portion 41 is performed prior to the crimping of the core wire 21. You can go there. In this case, as in the second and third embodiments, if the core wire 21 is configured to extend toward the distal end side of the core wire 21 by the inclined portions 155A and 255A, the wire support portion 41 is crimped at the rear side. It becomes possible to reduce the influence.
(3)実施形態1では、バレル主体部51の前後両端側の延出端縁51A,51Aを残して段差状に延出して形成されたカシメ先行部55を有する構成としたが、バレル主体部51の延出端縁51A,51Aのうちの芯線の先端側又は反対側のいずれか一方の延出端縁のみを残して段差状に延出して形成されたカシメ先行部を有する構成としてもよい。   (3) In the first embodiment, the barrel main body 51 has the caulking leading portion 55 formed to extend in a step shape leaving the extended end edges 51A and 51A on both front and rear ends. It is good also as a structure which has the crimping | preceding front part formed by extending in the shape of a step, leaving only the one of the extension side edge of the core wire among 51 extension edge 51A, 51A, or the other side. .
端子金具付き電線の斜視図Perspective view of electric wire with terminal fittings 圧着の際のクリンパとアンビルを示す図Diagram showing crimper and anvil during crimping 実施形態1の端子金具について説明するための部分的な展開形状Partially developed shape for explaining the terminal fitting of Embodiment 1 第1カシメ部が芯線に食い込んだ状態の断面図Sectional view of the first caulking part biting into the core wire 図4の側断面図Side sectional view of FIG. カシメ先行部の全体が芯線に食い込んだ状態の断面図Sectional view of the entire caulking leading part biting into the core wire 図6の側断面図6 is a side sectional view of FIG. 圧着後の断面図Cross section after crimping 図8の側断面図Side sectional view of FIG. 実施形態2の端子金具について説明するための部分的な展開形状Partially expanded shape for explaining the terminal fitting of Embodiment 2 カシメ先行部の先端が芯線に食い込んだ状態の断面図Sectional view of the caulking leading edge biting into the core wire 図11の側断面図Side sectional view of FIG. カシメ先行部の半分ほど芯線に食い込んだ状態の断面図Cross-sectional view of the caulking leading part half of the core wire 図13の側断面図Side sectional view of FIG. カシメ先行部の全体が芯線に食い込んだ状態の断面図Sectional view of the entire caulking leading part biting into the core wire 図15の側断面図Side sectional view of FIG. 圧着後の断面図Cross section after crimping 図17の側断面図Side sectional view of FIG. 実施形態3の端子金具について説明するための部分的な展開形状Partially developed shape for explaining the terminal fitting of Embodiment 3 カシメ先行部の先端が芯線に食い込んだ状態の断面図Sectional view of the caulking leading edge biting into the core wire 図20の側断面図20 is a side sectional view of FIG. カシメ先行部の半分ほど芯線に食い込んだ状態の断面図Cross-sectional view of the caulking leading part half of the core wire 図22の側断面図Side sectional view of FIG. カシメ先行部の全体が芯線に食い込んだ状態の断面図Sectional view of the entire caulking leading part biting into the core wire 図24の側断面図24 is a side sectional view of FIG. 圧着後の断面図Cross section after crimping 図26の側断面図26 is a side sectional view of FIG.
符号の説明Explanation of symbols
10…端子金具付き電線
20…被覆電線
21…芯線
30…端子金具
40…電線接続部
41…電線支持部
46…底板部
50…バレル部
51,151…バレル主体部
55,155…カシメ先行部
70…アンビル
71…クリンパ
155A,255A…傾斜部
DESCRIPTION OF SYMBOLS 10 ... Electric wire with a terminal metal fitting 20 ... Covered electric wire 21 ... Core wire 30 ... Terminal metal fitting 40 ... Electric wire connection part 41 ... Electric wire support part 46 ... Bottom plate part 50 ... Barrel part 51,151 ... Barrel main part 55,155 ... Caulking precedence part 70 ... Anvil 71 ... Crimper 155A, 255A ... Inclined part

Claims (8)

  1. 被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続されている端子金具付き電線であって、
    前記端子金具の前記バレル部は、前記底板部の両側部から延出されている一対のバレル主体部と、前記各バレル主体部の延出端縁のうちの少なくとも前記芯線の先端側及びこれとは反対側のいずれか一方の延出端縁を残して段差状に延出して形成されたカシメ先行部を有し、
    前記端子金具の圧着に伴って前記カシメ先行部が前記バレル主体部に先行して前記芯線に食い込むように構成されていることを特徴とする端子金具付き電線。
    The core wire and the terminal fitting are plastically deformed so that the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and a pair of barrel portions extending from both sides of the bottom plate portion wraps the core wire. An electric wire with a terminal fitting that is crimp-connected while
    The barrel portion of the terminal fitting includes a pair of barrel main portions extending from both side portions of the bottom plate portion, and at least the distal end side of the core wire and the extended end edges of the barrel main portions, and Has a caulking leading portion formed by extending in a stepped shape leaving one of the opposite extending edges,
    An electric wire with a terminal fitting, wherein the crimping leading portion is configured to bite into the core wire prior to the barrel main body as the terminal fitting is crimped.
  2. 前記カシメ先行部は、前記芯線の先端とは反対側の一辺が前記バレル主体部に対して直角に形成される一方、前記芯線の先端側がその先端側にゆくほど漸次芯線に近づく方向に傾斜する三角形状であることを特徴とする請求項1記載の端子金具付き電線。 The caulking leading portion is formed such that one side opposite to the tip of the core wire is formed at a right angle with respect to the barrel main body portion, while the tip end side of the core wire is gradually inclined toward the core wire as it goes to the tip side. The electric wire with terminal fitting according to claim 1, wherein the electric wire has a triangular shape.
  3. 被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続されている端子金具付き電線であって、
    前記端子金具の前記バレル部の延出端部は、前記芯線の先端側ほど前記底板部に近づく傾斜状に形成されていることを特徴とする端子金具付き電線。
    The core wire and the terminal fitting are plastically deformed so that the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and a pair of barrel portions extending from both sides of the bottom plate portion wraps the core wire. An electric wire with a terminal fitting that is crimp-connected while
    The extension end portion of the barrel portion of the terminal fitting is formed in an inclined shape that approaches the bottom plate portion toward the tip end side of the core wire.
  4. 前記端子金具には、前記被覆電線を絶縁被覆上から支持する電線支持部を有し、
    前記カシメ先行部の先端は、前記バレル部のうち前記電線支持部側の端部から他端側の端部に向けて前記芯線に近づく方向に傾斜することを特徴とする請求項3記載の端子金具付き電線。
    The terminal fitting has an electric wire support part for supporting the coated electric wire from above the insulating coating,
    4. The terminal according to claim 3, wherein a tip end of the caulking leading portion is inclined in a direction approaching the core wire from an end portion on the wire support portion side of the barrel portion toward an end portion on the other end side. Wire with bracket.
  5. 被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続される端子金具であって、
    前記端子金具の前記バレル部は、前記底板部の両側部から延出されている一対のバレル主体部と、前記各バレル主体部の延出端縁のうちの少なくとも前記芯線の先端側及びこれとは反対側のいずれか一方の延出端縁を残して段差状に延出して形成されたカシメ先行部を有し、
    前記端子金具の圧着に伴って前記カシメ先行部が前記バレル主体部に先行して前記芯線に食い込むように構成されていることを特徴とする端子金具。
    The core wire and the terminal fitting are plastically deformed so that the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and a pair of barrel portions extending from both sides of the bottom plate portion wraps the core wire. Terminal fittings that are crimped and connected,
    The barrel portion of the terminal fitting includes a pair of barrel main portions extending from both side portions of the bottom plate portion, and at least the distal end side of the core wire and the extended end edges of the barrel main portions, and Has a caulking leading portion formed by extending in a stepped shape leaving one of the opposite extending edges,
    The terminal fitting is configured such that the crimping leading portion bites into the core wire prior to the barrel main body as the terminal fitting is crimped.
  6. 前記カシメ先行部は、前記芯線の先端とは反対側の一辺が前記バレル主体部に対して直角に形成される一方、前記芯線の先端側がその先端側にゆくほど漸次芯線に近づく方向に傾斜する三角形状であることを特徴とする請求項5記載の端子金具。 The caulking leading portion is formed such that one side opposite to the tip of the core wire is formed at a right angle with respect to the barrel main body portion, while the tip end side of the core wire is gradually inclined toward the core wire as it goes to the tip side. 6. The terminal fitting according to claim 5, wherein the terminal fitting has a triangular shape.
  7. 被覆電線の露出された芯線が端子金具の底板部上に配され、前記底板部の両側部から延出された一対のバレル部が前記芯線を包み込むように前記芯線と前記端子金具とを塑性変形させながら圧着接続されている端子金具であって、
    前記端子金具の前記バレル部の延出端部は、前記芯線の先端側ほど前記底板部に近づく傾斜状に形成されていることを特徴とする端子金具。
    The core wire and the terminal fitting are plastically deformed so that the exposed core wire of the covered electric wire is arranged on the bottom plate portion of the terminal fitting, and a pair of barrel portions extending from both sides of the bottom plate portion wraps the core wire. Terminal fittings that are crimped and connected,
    The terminal fitting, wherein the extended end portion of the barrel portion of the terminal fitting is formed so as to be inclined toward the bottom plate portion toward the distal end side of the core wire.
  8. 前記端子金具には、前記被覆電線を絶縁被覆上から支持する電線支持部を有し、
    前記カシメ先行部の先端は、前記バレル部のうち前記電線支持部側の端部から他端側の端部に向けて前記芯線に近づく方向に傾斜することを特徴とする請求項7記載の端子金具。
    The terminal fitting has an electric wire support part for supporting the coated electric wire from above the insulating coating,
    The terminal according to claim 7, wherein a tip of the caulking leading portion is inclined in a direction approaching the core wire from an end portion on the wire support portion side of the barrel portion toward an end portion on the other end side. Hardware.
JP2008154296A 2008-06-12 2008-06-12 Electric wires with terminal fittings and terminal fittings Expired - Fee Related JP5150378B2 (en)

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JP2010062097A (en) * 2008-09-05 2010-03-18 Sumitomo Wiring Syst Ltd Terminal metal fitting, and electric wire with terminal metal fitting
WO2015053182A1 (en) * 2013-10-08 2015-04-16 矢崎総業株式会社 Crimp terminal

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CN101782661B (en) * 2009-09-22 2012-07-25 奥泰斯电子(东莞)有限公司 Method for adjusting sensitivity of infrared curtain detector and infrared curtain detector

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JP2003331939A (en) * 2002-05-14 2003-11-21 Union Machinery Co Ltd Crimp terminal
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JP2010062097A (en) * 2008-09-05 2010-03-18 Sumitomo Wiring Syst Ltd Terminal metal fitting, and electric wire with terminal metal fitting
WO2015053182A1 (en) * 2013-10-08 2015-04-16 矢崎総業株式会社 Crimp terminal
JP2015076235A (en) * 2013-10-08 2015-04-20 矢崎総業株式会社 Crimping terminal

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