JP2010040404A - Terminal metal fitting, and wire harness - Google Patents

Terminal metal fitting, and wire harness

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Publication number
JP2010040404A
JP2010040404A JP2008203851A JP2008203851A JP2010040404A JP 2010040404 A JP2010040404 A JP 2010040404A JP 2008203851 A JP2008203851 A JP 2008203851A JP 2008203851 A JP2008203851 A JP 2008203851A JP 2010040404 A JP2010040404 A JP 2010040404A
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Japan
Prior art keywords
conductor
wire
crimping
wire barrel
barrel
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.)
Abandoned
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JP2008203851A
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Japanese (ja)
Inventor
Ko Hiraishi
巧 平石
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Publication date
Application filed by Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP2008203851A priority Critical patent/JP2010040404A/en
Priority to EP09008007A priority patent/EP2151893A1/en
Priority to EP12001358A priority patent/EP2482384A3/en
Priority to CN 200910139926 priority patent/CN101645543B/en
Priority to US12/504,476 priority patent/US7828611B2/en
Publication of JP2010040404A publication Critical patent/JP2010040404A/en
Abandoned legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To prevent that the front end part of a conductor crimped to a wire barrel part is deformed to be enlarged. <P>SOLUTION: A terminal metal fitting 20 has an open-barrel shaped electric wire crimping part 25 in order to connect an electric wire 10 of a form of surrounding a conductor 11 composed of a twisted wire covered with an insulative covering 12. In a state that the conductor 11 is crimped to the wire barrel part 26, the front end part of the conductor 11 is arranged ahead of a fastening region 32 where a fastening force is applied when crimping the wire barrel part 26. In the wire barrel part 26, a regulation part 33 which has a form of extending out ahead along the conductor 11 from the fastening region 32 in the wire barrel part 26, and is capable of regulating expansion of the conductor 11, is formed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、端子金具及びワイヤーハーネスに関するものである。   The present invention relates to a terminal fitting and a wire harness.

特許文献１には、略後半部分がオープンバレル状の電線圧着部となっている端子金具が開示されている。電線圧着部の前端側領域は、電線の導体を圧着するためのワイヤバレル部となっており、電線圧着部の後端側領域は、電線の被覆で覆われた部分を圧着するためのインシュレーションバレル部となっている。この端子金具では、導体が複数本の金属細線を撚り合わせた撚り線からなり、その導体の前端部がワイヤバレル部の前端よりも更に前方へ突出されている。
特開２００５−２２２８１５公報 Patent Document 1 discloses a terminal fitting in which a substantially second half portion is an open barrel-shaped electric wire crimping portion. The front end side region of the wire crimping portion is a wire barrel portion for crimping the conductor of the wire, and the rear end side region of the wire crimping portion is insulation for crimping the portion covered with the coating of the wire. It is a barrel part. In this terminal fitting, the conductor is a stranded wire formed by twisting a plurality of fine metal wires, and the front end portion of the conductor projects further forward than the front end of the wire barrel portion.
JP-A-2005-222815

上記の端子金具において、リテーナとの干渉回避等のためにクリンプハイトを低く設定した場合、ワイヤバレル部に対する締付けの強さのために、ワイヤバレル部の前方では、導体を構成する金属細線の撚りがばらけ、そのばらけた金属細線の前端部が拡がるように変形することになる。このようになると、拡がるように変形した金属細線とリテーナとが干渉する虞がある。
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、ワイヤバレル部に圧着される導体の前端部が拡がるように変形するのを防止することを目的とする。 In the above terminal fitting, when the crimp height is set low in order to avoid interference with the retainer, etc., because of the tightening strength of the wire barrel part, the twist of the thin metal wire constituting the conductor is placed in front of the wire barrel part. It is deformed so that the front end portion of the separated fine metal wire is spread. If it becomes like this, there exists a possibility that the metal fine wire deform | transformed so that it may spread and a retainer may interfere.
The present invention has been completed based on the above circumstances, and an object thereof is to prevent the front end portion of a conductor to be crimped to a wire barrel portion from being deformed so as to expand.

上記の目的を達成するための手段として、請求項１の発明は、撚り線からなる導体を絶縁被覆で包囲した形態の電線を接続するためのオープンバレル状の電線圧着部を有しており、前記電線圧着部の後端側領域が、前記電線のうち前記絶縁被覆で包囲されている部分を圧着するためのインシュレーションバレル部となっており、前記電線圧着部の前端側領域が、前記絶縁被覆を除去して露出させた前記導体を圧着するためのワイヤバレル部となっており、前記ワイヤバレル部に前記導体が圧着された状態では、前記導体の前端部が、前記ワイヤバレル部のうち圧着時に締め付け力が付与される締付け領域よりも前方に配置されるようになっている端子金具において、前記ワイヤバレル部には、前記ワイヤバレル部における前記締付け領域から前記導体に沿って前方へ延出する形態であって、前記導体の拡がりを規制可能な規制部が形成されているところに特徴を有する。   As a means for achieving the above object, the invention of claim 1 has an open barrel-shaped electric wire crimping portion for connecting an electric wire in a form in which a conductor made of a stranded wire is surrounded by an insulating coating, The rear end side region of the electric wire crimping portion is an insulation barrel portion for crimping a portion of the electric wire surrounded by the insulating coating, and the front end side region of the electric wire crimping portion is the insulating member. It becomes a wire barrel part for crimping the conductor exposed by removing the coating, and in a state where the conductor is crimped to the wire barrel part, the front end part of the conductor is out of the wire barrel part. In the terminal fitting that is arranged in front of a tightening region to which a tightening force is applied at the time of crimping, the wire barrel portion is connected to the wire barrel portion from the tightening region. In a form extending forward along the serial conductor has a characteristic where the restricting portion capable restricting the spread of the conductor is formed.

請求項２の発明は、請求項１に記載のものにおいて、前記規制部には、前記導体の一部を目視することを可能にする切欠部が形成されているところに特徴を有する。   According to a second aspect of the present invention, in the first aspect of the present invention, the restricting portion is characterized in that a cutout portion that allows a part of the conductor to be visually observed is formed.

請求項３の発明は、請求項１または請求項２に記載のものにおいて、前記ワイヤバレル部の前端は、相手側端子との接続手段である端子接続部の後端に対して連結部を介して連なっていて、前記導体の前端部は前記連結部内に位置しており、前記規制部は、前記連結部に連なった形態となっているところに特徴を有する。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the front end of the wire barrel portion is connected to the rear end of the terminal connection portion which is a connection means with the counterpart terminal via a connecting portion. The conductor is characterized in that the front end portion of the conductor is located in the connecting portion, and the restricting portion is connected to the connecting portion.

請求項４の発明は、オープンバレル状の電線圧着部を有する端子金具と、撚り線からなる導体を絶縁被覆で包囲した形態であって前記電線圧着部に接続された電線とを備え、前記電線圧着部の後端側領域が、前記電線のうち前記絶縁被覆で包囲されている部分を圧着するためのインシュレーションバレル部となっており、前記電線圧着部の前端側領域が、前記絶縁被覆を除去して露出させた前記導体を圧着するためのワイヤバレル部となっており、前記ワイヤバレル部に前記導体が圧着された状態では、前記導体の前端部が、前記ワイヤバレル部のうち圧着時に締め付け力が付与される締付け領域よりも前方に配置されているワイヤーハーネスにおいて、前記ワイヤバレル部には、前記ワイヤバレル部における前記締付け領域から前記導体に沿って前方へ延出する形態であって、前記導体の拡がりを規制可能な規制部が形成されているところに特徴を有する。   The invention of claim 4 includes a terminal fitting having an open barrel-shaped wire crimping portion, and a wire connected to the wire crimping portion in a form in which a conductor made of a stranded wire is surrounded by an insulating coating, A rear end side region of the crimping portion is an insulation barrel portion for crimping a portion of the electric wire surrounded by the insulating coating, and a front end side region of the electric wire crimping portion covers the insulating coating. It becomes a wire barrel part for crimping the conductor that has been removed and exposed, and when the conductor is crimped to the wire barrel part, the front end of the conductor is at the time of crimping of the wire barrel part. In the wire harness arranged in front of the tightening region to which the tightening force is applied, the wire barrel portion includes the wire region from the tightening region to the conductor. In a form extending frontward I has a feature where the restricting portion capable restricting the spread of the conductor is formed.

請求項５の発明は、請求項４に記載のものにおいて、前記規制部には、前記導体の一部を目視することを可能にする切欠部が形成されているところに特徴を有する。   The invention of claim 5 is characterized in that, in the invention described in claim 4, the restricting portion is formed with a notch that allows a part of the conductor to be visually observed.

請求項６の発明は、請求項４または請求項５に記載のものにおいて、前記ワイヤバレル部の前端は、相手側端子との接続手段である端子接続部の後端に対して連結部を介して連なっていて、前記導体の前端部は前記連結部内に位置しており、前記規制部は、前記連結部に連なった形態となっているところに特徴を有する。   According to a sixth aspect of the present invention, in the apparatus according to the fourth or fifth aspect, the front end of the wire barrel portion is connected to the rear end of the terminal connection portion which is a connection means with the counterpart terminal via a connecting portion. The conductor is characterized in that the front end portion of the conductor is located in the connecting portion, and the restricting portion is connected to the connecting portion.

＜請求項１及び請求項４の発明＞
ワイヤバレル部に規制部を形成したことにより、導体の前端部が拡がるように変形するのを防止できる。 <Invention of Claims 1 and 4>
By forming the restricting portion in the wire barrel portion, it is possible to prevent the front end portion of the conductor from being deformed so as to expand.

＜請求項２及び請求項５の発明＞
ワイヤバレル部に導体を圧着した後は、切欠部を通して導体を目視することにより、導体の圧着状態が適正であるか否かを確認することができる。 <Invention of Claims 2 and 5>
After crimping the conductor to the wire barrel portion, it is possible to confirm whether or not the crimping state of the conductor is appropriate by visually observing the conductor through the notch portion.

＜請求項３及び請求項６の発明＞
規制部は、連結部に連なっているので、変形し難い。したがって、導体の拡がり変形を確実に防止することができる。 <Invention of Claim 3 and Claim 6>
Since the restricting portion is connected to the connecting portion, it is difficult to deform. Therefore, the spreading and deformation of the conductor can be reliably prevented.

＜実施形態１＞
以下、本発明を具体化した実施形態１を図１乃至図３を参照して説明する。本実施形態のワイヤーハーネスは、電線１０の前端部（図１及び図２における左側の端部）に端子金具２０を導通可能に接続したものであり、ワイヤーハーネスとして用いられる。電線１０は、複数本の金属細線を撚り合わせた撚り線からなる導体１１と、導体１１を包囲する絶縁被覆１２とから構成されている。電線１０の前端部においては、端子金具２０との接続準備として、予め、絶縁被覆１２が除去されることにより導体１１の前端部が露出した状態となっている。導体１１の材料としては、銅や、銅よりも剛性が高い材料（例えば、アルミニウム）や、銅よりも導電率の低い材料（例えば、アルミニウム）が用いられる。 <Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3. The wire harness of the present embodiment is obtained by connecting the terminal fitting 20 to the front end portion (left end portion in FIGS. 1 and 2) of the electric wire 10 so as to be conductive, and is used as a wire harness. The electric wire 10 includes a conductor 11 made of a stranded wire obtained by twisting a plurality of fine metal wires, and an insulating coating 12 surrounding the conductor 11. At the front end portion of the electric wire 10, the front end portion of the conductor 11 is exposed by removing the insulating coating 12 in advance as preparation for connection to the terminal fitting 20. As the material of the conductor 11, copper, a material having higher rigidity than copper (for example, aluminum), or a material having lower conductivity than copper (for example, aluminum) is used.

端子金具２０は、所定形状に打ち抜いた金属板材に曲げ加工等を施すことによって形成された雌形のものであり、前端側領域は角筒状をなす端子接続部２１となっており、後端側領域はオープンバレル状の電線圧着部２５となっている。端子接続部２１は、雄形の相手端子に形成されている細長いタブ（図示せず）との接続手段として機能する周知形態のものである。   The terminal fitting 20 is a female shape formed by bending a metal plate material punched into a predetermined shape, and the front end side region is a terminal connection portion 21 having a rectangular tube shape, and the rear end The side region is an open barrel-shaped wire crimping portion 25. The terminal connection portion 21 has a well-known configuration that functions as a connection means with an elongated tab (not shown) formed on the male mating terminal.

端子接続部２１の後端と電線圧着部２５の前端は、連結部２２を介して連なっている。連結部２２は、下面板２３と下面板２３の左右両側縁から上方へほぼ直角に立ち上がる左右対称な一対の側面板２４とから構成され、連結部２２の内部には、上方へ開放された空間が形成されている。   The rear end of the terminal connecting portion 21 and the front end of the electric wire crimping portion 25 are connected via the connecting portion 22. The connecting portion 22 is composed of a lower surface plate 23 and a pair of left and right side plates 24 that rise substantially perpendicularly from the left and right side edges of the lower surface plate 23, and a space opened upward in the connecting portion 22. Is formed.

電線圧着部２５は、連結部２２の後端に連なるワイヤバレル部２６と、ワイヤバレル部２６よりも後方に位置するインシュレーションバレル部２７とを備えて構成されている。インシュレーションバレル部２７は、底板部２８の左右両側縁から一対のカシメ部２９を延出させた形態であり、このインシュレーションバレル部２７には、電線１０の前端部のうち導体１１を包囲する絶縁被覆１２が残っている部分が、圧着により接続されている。圧着の際には、アプリケータと称される自動機（図示せず）が用いられ、ワイヤバレル部２６における導体１１の圧着と同時に、インシュレーションバレル部２７において電線１０が圧着される。圧着された状態では、電線１０が、底板部２８と一対のカシメ部２９とにより全周に亘って包囲されて加圧された状態となり、この加圧により生じた固着力により、電線１０がインシュレーションバレル部２７に固着される。   The electric wire crimping portion 25 includes a wire barrel portion 26 that is continuous with the rear end of the connecting portion 22, and an insulation barrel portion 27 that is located behind the wire barrel portion 26. The insulation barrel portion 27 has a form in which a pair of caulking portions 29 are extended from the left and right side edges of the bottom plate portion 28. The insulation barrel portion 27 surrounds the conductor 11 in the front end portion of the electric wire 10. The portions where the insulating coating 12 remains are connected by pressure bonding. At the time of crimping, an automatic machine (not shown) called an applicator is used, and simultaneously with crimping of the conductor 11 in the wire barrel portion 26, the electric wire 10 is crimped in the insulation barrel portion 27. In the crimped state, the electric wire 10 is surrounded and pressurized by the bottom plate portion 28 and the pair of caulking portions 29, and the electric wire 10 is insulated by the fixing force generated by the pressing. It is fixed to the translation barrel portion 27.

ワイヤバレル部２６は、インシュレーションバレル部２７の底板部２８及び連結部２２の下面板２３に連なる基板部３０と、基板部３０の左右両側縁から延出する左右対称な一対のカシメ片３１とから構成される。このワイヤバレル部２６には、電線１０の前端部において絶縁被覆１２が除去されて剥き出しになった導体１１が、圧着により電気的導通可能に固着されている。圧着に際しては、自動機のアンビル（図示せず）に電線圧着部２５をセットし、導体１１を基板部３０に載置するようにセットし状態で、クリンパ（図示せず）が下降して一対のカシメ片３１を導体１１に巻き付かせるように変形させる。これにより、基板部３０と一対のカシメ片３１が、導体１１に対して加圧した状態で包囲するように圧着される。   The wire barrel portion 26 includes a base plate portion 30 connected to the bottom plate portion 28 of the insulation barrel portion 27 and the lower surface plate 23 of the connecting portion 22, and a pair of symmetric caulking pieces 31 extending from the left and right side edges of the base plate portion 30. Consists of The conductor 11 which is exposed by removing the insulating coating 12 at the front end portion of the electric wire 10 is fixed to the wire barrel portion 26 so as to be electrically conductive by crimping. When crimping, the crimper (not shown) is lowered and the wire crimping part 25 is set on the anvil (not shown) of the automatic machine and the conductor 11 is placed on the board part 30. The crimping piece 31 is deformed so as to be wound around the conductor 11. Thereby, the board | substrate part 30 and a pair of crimping piece 31 are crimped | bonded so that it may surround in the state pressurized with respect to the conductor 11. FIG.

圧着状態では、導体１１の前端部はカシメ片３１の前端縁よりも更に前方へ突出するように位置し、連結部２２内に収容されている。カシメ片３１のうち導体１１を上から押圧（加圧）する領域は、前後方向（導体１１の軸線方向及び端子金具２０の長さ方向と平行な方向）から視たときに、略半円形に湾曲している（図３を参照）。ワイヤバレル（カシメ片３１）のうち前後方向において、クリンパにより締め付けられる締付け領域３２は、カシメ片３１の前後両端部を除いた範囲に限定されており、締付け領域３２の前方及び後方の端縁部は、締付け領域３２よりも僅かに拡径するように斜め（テーパ状）をなすベルマウスとなっている。このように締付け領域３２を限定してベルマウスを形成しているので、カシメ片３１の内周における前端縁及び後端縁のエッジが、導体１１を構成する金属細線を切断することはない。   In the crimped state, the front end portion of the conductor 11 is positioned so as to protrude further forward than the front end edge of the crimping piece 31 and is accommodated in the connecting portion 22. The area of the crimping piece 31 that presses (presses) the conductor 11 from above is substantially semicircular when viewed from the front-rear direction (the direction parallel to the axial direction of the conductor 11 and the length direction of the terminal fitting 20). It is curved (see FIG. 3). The tightening region 32 to be tightened by the crimper in the front-rear direction of the wire barrel (the caulking piece 31) is limited to a range excluding both front and rear ends of the caulking piece 31, and the front and rear edge portions of the tightening region 32 Is a bell mouth that is slanted (tapered) so as to be slightly larger in diameter than the tightening region 32. Since the bell mouth is formed by limiting the tightening region 32 in this way, the edges of the front end edge and the rear end edge on the inner periphery of the crimping piece 31 do not cut the fine metal wire constituting the conductor 11.

また、導体１１がアルミニウムである場合には、その表面の酸化皮膜を除去するためにワイヤバレル部２６の締付けを強くしてクリンプハイトを低く設定することが行われるが、この場合、ワイヤバレル部２６に対する締付けが強くなるために、ワイヤバレル部２６（締付け領域３２）の前方では、導体１１を構成する金属細線の撚りがばらけ、そのばらけた金属細線の前端部が拡がるように変形することになる。このようになると、折角クリンプハイトを低くしても、拡がった導体１１がワイヤバレル部２６の上方へ突出するため、ワイヤバレル部２６を低背化した効果が薄れることになる。   Further, when the conductor 11 is aluminum, in order to remove the oxide film on the surface, the tightening of the wire barrel portion 26 is strengthened and the crimp height is set low. In order to increase the tightening of the thin metal wires 26, in front of the wire barrel portion 26 (tightening region 32), the twist of the fine metal wires constituting the conductor 11 is dispersed, and the front end portion of the loose metal wires is deformed so as to expand. become. In this case, even if the folding crimp height is lowered, the expanded conductor 11 protrudes upward from the wire barrel portion 26, so that the effect of reducing the height of the wire barrel portion 26 is diminished.

そこで、本実施形態では、導体１１の前端部が拡がるのを防止する手段として、ワイヤバレル部２６に左右対称な一対の規制部３３が形成されている。一対の規制部３３は、夫々、対応するカシメ片３１の前端縁から前方へ延出された形態、即ちワイヤバレル部２６における締付け領域３２よりも前方へ導体１１を上から覆うように且つ導体１１に沿うように延出した形態であり、図３に示すように、カシメ片３１と同様に円弧形に湾曲した形状をなす。前後方向における規制部３３の形成領域は、規制部３３の前端（図１及び図２における左端）が導体１１の前端よりも更に前方に位置するような範囲とされている。また、一対の規制部３３の側縁部は、その前後方向における全領域に亘って、連結部２２の側面板２４の上端縁に対して面一状に連なっている。   Therefore, in the present embodiment, as a means for preventing the front end portion of the conductor 11 from expanding, a pair of symmetrical restricting portions 33 are formed in the wire barrel portion 26. Each of the pair of restricting portions 33 extends forward from the front end edge of the corresponding caulking piece 31, that is, covers the conductor 11 from the top in front of the tightening region 32 in the wire barrel portion 26. As shown in FIG. 3, it has a shape curved in an arc shape like the caulking piece 31. The formation region of the restricting portion 33 in the front-rear direction is a range in which the front end (left end in FIGS. 1 and 2) of the restricting portion 33 is located further forward than the front end of the conductor 11. Moreover, the side edge part of a pair of control part 33 is continuing on the same surface with respect to the upper end edge of the side plate 24 of the connection part 22 over the whole area | region in the front-back direction.

カシメ片３１の延出方向（導体１１を包囲する周方向）における規制部３３の形成領域は、カシメ片３１のうちその延出端部３１Ａを除く範囲に限定されている。一対のカシメ片３１の延出端部３１Ａは、ワイヤバレル部２６の幅方向中央部に位置して、下を向いた状態で互いに外面同士を当接させている。これにより、一対の規制部３３の間には、平面形状が略方形をなす切欠部３４が形成されている。切欠部３４は、前方に開放されているとともに、前後方向及び左右方向において導体１１の一部と対応するように開口されている。また、切欠部３４の幅寸法は、導体１１の外径寸法よりも小さい寸法とされている。   The formation region of the restricting portion 33 in the extending direction of the crimping piece 31 (circumferential direction surrounding the conductor 11) is limited to a range excluding the extending end portion 31 </ b> A of the crimping piece 31. The extending end portions 31 </ b> A of the pair of crimping pieces 31 are located at the center portion in the width direction of the wire barrel portion 26, and have their outer surfaces in contact with each other while facing downward. Thereby, between the pair of restricting portions 33, a notch portion 34 having a substantially square planar shape is formed. The notch 34 is opened forward and corresponding to a part of the conductor 11 in the front-rear direction and the left-right direction. Further, the width dimension of the notch 34 is smaller than the outer diameter dimension of the conductor 11.

本実施形態では、ワイヤバレル部２６に導体１１が圧着された状態において、導体１１の前端部が、ワイヤバレル部２６のうち圧着時に締め付け力が付与される締付け領域３２よりも前方に配置されるようになっているため、圧着時に導体１１の前端部が拡開変形することが懸念されるのであるが、ワイヤバレル部２６には、ワイヤバレル部２６における締付け領域３２から導体１１に沿って前方へ延出する形態の規制部３３を形成しているので、導体１１の前端部の拡がりを規制することができる。   In the present embodiment, in a state where the conductor 11 is crimped to the wire barrel portion 26, the front end portion of the conductor 11 is disposed in front of the clamping region 32 to which a clamping force is applied during crimping in the wire barrel portion 26. For this reason, there is a concern that the front end portion of the conductor 11 is expanded and deformed during crimping. However, the wire barrel portion 26 has a front portion along the conductor 11 from the tightening region 32 in the wire barrel portion 26. Since the restricting portion 33 is formed so as to extend to the front, the spread of the front end portion of the conductor 11 can be restricted.

また、規制部３３には、その一部を切欠した形態の切欠部３４を形成したので、この切欠部３４において、ワイヤバレル部２６の上方から連結部２２内に位置する導体１１の前端部の一部を目視することが可能となっている。このように導体１１を目視可能としたことにより、前後方向において導体１１の前端の位置が適正であるか否かを確認することができる。
また、規制部３３は、連結部２２に連なった形態とされているので、強度が高められて変形し難くなっている。これにより、導体１１の拡がり変形を確実に防止することができる。 Moreover, since the notch 34 of the form which notched the part was formed in the control part 33, in this notch 34, the front end part of the conductor 11 located in the connection part 22 from the upper part of the wire barrel part 26 is formed. Part of it can be visually observed. Thus, by making the conductor 11 visible, it is possible to confirm whether or not the position of the front end of the conductor 11 is appropriate in the front-rear direction.
Moreover, since the control part 33 is made into the form connected with the connection part 22, intensity | strength is raised and it is hard to deform | transform. Thereby, the spreading deformation of the conductor 11 can be reliably prevented.

＜実施形態２＞
次に、本発明を具体化した実施形態２を図４を参照して説明する。本実施形態２の端子金具４０は、規制部４１に形成した切欠部４２を上記実施形態１とは異なる構成としたものである。その他の構成については上記実施形態１と同じであるため、同じ構成については、同一符号を付し、構造、作用及び効果の説明は省略する。本実施形態２の切欠部４２は、その平面形状が、前方に向かって開口幅が徐々に拡がるような二等辺三角形をなしている。この切欠部４２においても、導体１１の前端の前後方向における位置が適正であるか否かを目視により確認することができる。 <Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIG. In the terminal fitting 40 of the second embodiment, the notch 42 formed in the restricting portion 41 is configured differently from the first embodiment. Since other configurations are the same as those of the first embodiment, the same configurations are denoted by the same reference numerals, and descriptions of structures, operations, and effects are omitted. The cutout portion 42 of the second embodiment has an isosceles triangle whose planar shape gradually widens toward the front. Also in this notch portion 42, it is possible to visually confirm whether or not the position of the front end of the conductor 11 in the front-rear direction is appropriate.

＜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態様も本発明の技術的範囲に含まれる。
（１）上記実施形態では規制部を導体の前端よりも更に前方まで延出させたが、前後方向における規制部の前端の位置は、導体の前端と同じ位置でもよく、導体の前端よりも後方の位置でもよい。
（２）上記実施形態では規制部が導体の上面に沿った形態としたが、規制部は、導体を上面と側面の両方に沿った形態としてもよい。
（３）上記実施形態では規制部に切欠部を形成したが、規制部に切欠部を形成しない形態としてもよい。
（４）上記実施形態では切欠部を方形又は三角形としたが、切欠部の形状は櫛形や半円形などでもよい。
（５）上記実施形態では規制部を左右対称な形状としたが、規制部は、左右非対称な形状であってもよい。
（６）上記実施形態では規制部を一対のカシメ片の両方に形成したが、規制部は、いずれか一方のカシメ片のみに形成してもよい。
（７）上記実施形態では規制部が連結部に連なる形態としたが、規制部と連結部とが分離した形態であってもよい。
（８）上記実施形態では端子接続部が角筒状をなす雌形の端子金具について説明したが、本発明は、端子接続部が細長いタブを有する雄形の端子金具にも適用できる。 <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) In the above embodiment, the restricting portion is extended further forward than the front end of the conductor. However, the position of the front end of the restricting portion in the front-rear direction may be the same position as the front end of the conductor, and is behind the front end of the conductor. It may be the position.
(2) In the above embodiment, the restricting portion is in a form along the upper surface of the conductor. However, the restricting portion may have the conductor in a form along both the upper surface and the side surface.
(3) In the above embodiment, the notch is formed in the restricting portion, but the notch may be not formed in the restricting portion.
(4) In the above embodiment, the notch is square or triangular, but the shape of the notch may be a comb or a semicircle.
(5) In the above-described embodiment, the restricting portion has a symmetrical shape, but the restricting portion may have an asymmetric shape.
(6) In the said embodiment, although the control part was formed in both of a pair of crimping piece, you may form a control part only in any one crimping piece.
(7) In the above embodiment, the restricting portion is connected to the connecting portion. However, the restricting portion and the connecting portion may be separated.
(8) In the above embodiment, the female terminal fitting in which the terminal connecting portion has a rectangular tube shape has been described. However, the present invention can also be applied to a male terminal fitting in which the terminal connecting portion has an elongated tab.

実施形態１の側面図Side view of Embodiment 1 平面図Plan view 図１のＸ−Ｘ線断面図XX sectional view of FIG. 実施形態２の平面図Plan view of Embodiment 2

符号の説明Explanation of symbols

１０…電線
１１…導体
１２…絶縁被覆
２０…端子金具
２１…端子接続部
２２…連結部
２５…電線圧着部
２６…ワイヤバレル部
２７…インシュレーションバレル部
３２…締付け領域
３３…規制部
３４…切欠部 DESCRIPTION OF SYMBOLS 10 ... Electric wire 11 ... Conductor 12 ... Insulation coating 20 ... Terminal metal fitting 21 ... Terminal connection part 22 ... Connection part 25 ... Wire crimping part 26 ... Wire barrel part 27 ... Insulation barrel part 32 ... Tightening area | region 33 ... Restriction part 34 ... Notch Part

Claims (6)

撚り線からなる導体を絶縁被覆で包囲した形態の電線を接続するためのオープンバレル状の電線圧着部を有しており、
前記電線圧着部の後端側領域が、前記電線のうち前記絶縁被覆で包囲されている部分を圧着するためのインシュレーションバレル部となっており、
前記電線圧着部の前端側領域が、前記絶縁被覆を除去して露出させた前記導体を圧着するためのワイヤバレル部となっており、
前記ワイヤバレル部に前記導体が圧着された状態では、前記導体の前端部が、前記ワイヤバレル部のうち圧着時に締め付け力が付与される締付け領域よりも前方に配置されるようになっている端子金具において、
前記ワイヤバレル部には、前記ワイヤバレル部における前記締付け領域から前記導体に沿って前方へ延出する形態であって、前記導体の拡がりを規制可能な規制部が形成されていることを特徴とする端子金具。 It has an open barrel-shaped wire crimping part for connecting wires in a form in which a conductor made of stranded wire is surrounded by an insulation coating,
The rear end side region of the electric wire crimping portion is an insulation barrel portion for crimping a portion of the electric wire surrounded by the insulating coating,
The front end side region of the electric wire crimping portion is a wire barrel portion for crimping the conductor exposed by removing the insulating coating,
In a state where the conductor is crimped to the wire barrel portion, the front end portion of the conductor is arranged in front of a tightening region to which a tightening force is applied during crimping in the wire barrel portion. In the bracket,
The wire barrel portion is configured to extend forward from the tightening region in the wire barrel portion along the conductor, and a restriction portion capable of restricting the expansion of the conductor is formed. Terminal fitting to be used. 前記規制部には、前記導体の一部を目視することを可能にする切欠部が形成されていることを特徴とする請求項１記載の端子金具。   The terminal fitting according to claim 1, wherein the restricting portion is formed with a notch that allows a part of the conductor to be visually observed. 前記ワイヤバレル部の前端は、相手側端子との接続手段である端子接続部の後端に対して連結部を介して連なっていて、
前記導体の前端部は前記連結部内に位置しており、
前記規制部は、前記連結部に連なった形態となっていることを特徴とする請求項１又は請求項２記載の端子金具。 The front end of the wire barrel portion is connected to the rear end of the terminal connection portion which is a connection means with the counterpart terminal via a connecting portion,
A front end portion of the conductor is located in the connecting portion;
The terminal fitting according to claim 1, wherein the restricting portion is connected to the connecting portion. オープンバレル状の電線圧着部を有する端子金具と、
撚り線からなる導体を絶縁被覆で包囲した形態であって前記電線圧着部に接続された電線とを備え、
前記電線圧着部の後端側領域が、前記電線のうち前記絶縁被覆で包囲されている部分を圧着するためのインシュレーションバレル部となっており、
前記電線圧着部の前端側領域が、前記絶縁被覆を除去して露出させた前記導体を圧着するためのワイヤバレル部となっており、
前記ワイヤバレル部に前記導体が圧着された状態では、前記導体の前端部が、前記ワイヤバレル部のうち圧着時に締め付け力が付与される締付け領域よりも前方に配置されているワイヤーハーネスにおいて、
前記ワイヤバレル部には、前記ワイヤバレル部における前記締付け領域から前記導体に沿って前方へ延出する形態であって、前記導体の拡がりを規制可能な規制部が形成されていることを特徴とするワイヤーハーネス。 A terminal fitting having an open barrel-shaped wire crimping portion;
A conductor comprising a stranded wire surrounded by an insulation coating and connected to the wire crimping portion; and
The rear end side region of the electric wire crimping portion is an insulation barrel portion for crimping a portion of the electric wire surrounded by the insulating coating,
The front end side region of the electric wire crimping portion is a wire barrel portion for crimping the conductor exposed by removing the insulating coating,
In the state where the conductor is crimped to the wire barrel portion, the front end portion of the conductor is disposed forward of a tightening region to which a tightening force is applied during crimping in the wire barrel portion,
The wire barrel portion is configured to extend forward from the tightening region in the wire barrel portion along the conductor, and a restriction portion capable of restricting the expansion of the conductor is formed. Wire harness to do. 前記規制部には、前記導体の一部を目視することを可能にする切欠部が形成されていることを特徴とする請求項４記載のワイヤーハーネス。   The wire harness according to claim 4, wherein the restricting portion is formed with a notch that allows a part of the conductor to be visually observed. 前記ワイヤバレル部の前端は、相手側端子との接続手段である端子接続部の後端に対して連結部を介して連なっていて、
前記導体の前端部は前記連結部内に位置しており、
前記規制部は、前記連結部に連なった形態となっていることを特徴とする請求項４または請求項５に記載のワイヤーハーネス。 The front end of the wire barrel portion is connected to the rear end of the terminal connection portion which is a connection means with the counterpart terminal via a connecting portion,
A front end portion of the conductor is located in the connecting portion;
The wire harness according to claim 4 or 5, wherein the restricting portion is connected to the connecting portion.
JP2008203851A 2008-08-07 2008-08-07 Terminal metal fitting, and wire harness Abandoned JP2010040404A (en)

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EP09008007A EP2151893A1 (en) 2008-08-07 2009-06-18 A terminal fitting and a crimping method
EP12001358A EP2482384A3 (en) 2008-08-07 2009-06-18 A terminal fitting and a crimping method
CN 200910139926 CN101645543B (en) 2008-08-07 2009-07-15 A terminal fitting and a crimping method
US12/504,476 US7828611B2 (en) 2008-08-07 2009-07-16 Terminal fitting

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