JP3855833B2

JP3855833B2 - Wire connection connector

Info

Publication number: JP3855833B2
Application number: JP2002120956A
Authority: JP
Inventors: 純一郎熊谷; 淳史横井川
Original assignee: Omron Corp
Current assignee: Omron Corp
Priority date: 2002-04-23
Filing date: 2002-04-23
Publication date: 2006-12-13
Anticipated expiration: 2022-04-23
Also published as: JP2003317822A; EP1357640A3; EP1357640A2; CN1207818C; CN1453902A; EP1357640B1

Description

【０００１】
【発明の属する技術分野】
本発明は電線接続コネクタ、特に、接続金具とこれに圧接する板バネとで電線を挟持して電気接続する電線接続コネクタに関する。
【０００２】
【従来の技術】
従来、電線接続コネクタとしては、例えば、特開平１０−１２２９４号公報に開示の中継コネクタがある。
すなわち、ハウジング５，１９と、端子金具７，２１と、板バネ９，２３と、リリースボタン１１，２５とをそれぞれ有する電線固定機構を備えた中継コネクタである。そして、例えば、前記リリースボタン１１をハウジング５内に押し込んで前記板バネ９を弾性変形させた後、電線３１をハウジング５内に挿入する。ついで、前記リリースボタン１１を引き戻して前記板バネ９を弾性復帰させることにより、前記端子金具７と板バネ９とで前記電線３１を圧接，挟持して電気接続していた。
【０００３】
【発明が解決しようとする課題】
しかしながら、前述の中継コネクタでは、ハウジング５からリリースボタン１１，２５がそれぞれ露出している。このため、例えば、前記リリースボタン１１，２５に障害物が偶発的に衝突すると、ロックが解除され、電線３１が抜け落ちるおそれがあった。
【０００４】
また、前記中継コネクタでは、リリースボタン１１，２５を押し込んで開放状態とする一方、前記リリースボタン１１，２５を引き戻して結線状態としていた。このため、電線３１の脱着作業において異なる２種類の操作、すなわち、押圧操作および引き戻し操作を行なう必要があり、作業性が悪い。特に、前記リリースボタンを復帰させる場合には、前記リリースボタン１１，２５を押し込む際に必要な押込み力よりも大きな引き戻し力を必要とし、作業性がより一層悪いという問題点がある。
【０００５】
本発明は、前述の問題点に鑑み、誤動作することがなく、作業性の良い電線接続コネクタを提供することを目的とする。
【０００６】
【課題を解決するための手段】
本発明にかかる電線接続コネクタは、前記目的を達成すべく、ハウジングに設けた挿入孔から略Ｌ字形の操作レバーを軸心方向に挿入して押し込み、前記ハウジングに内蔵した略Ｖ字形の板バネを弾性変形させることにより、前記ハウジングに内蔵した接続金具と前記板バネとの間に間隙を形成して開放状態とした後、前記間隙に電線を位置決めし、ついで、前記操作レバーを引き戻して前記板バネを弾性復帰させることにより、前記接続金具と前記板バネとで前記電線を挟持して結線状態とする電線接続コネクタにおいて、前記ハウジングにカバーを組み付けて前記操作レバーの頭部を収納し、前記カバーに、結線状態に位置する前記操作レバーの頭部を軸心方向に押圧できる開放用操作孔を設けるとともに、前記ハウジングと前記カバーとの間に、開放状態に位置する前記操作レバーの頭部を操作できる結線用操作孔を設けた構成としてある。
【０００７】
本発明によれば、操作レバー全体がハウジングおよびカバー内に収納される。このため、外部から障害物が偶発的に衝突することがなく、誤動作を防止できる。また、操作レバーを開閉状態および結線状態のいずれの状態に操作する場合でも、操作棒を押し込むという１種類の操作で処理できるので、作業性が向上する。特に、操作レバーを開閉状態および結線状態のいずれの状態に操作する場合であっても、押込み力に大差がなく、作業性がより一層向上する。
【０００８】
本発明の実施形態としては、前記カバーに、ハウジングから引き出された操作レバーを抜け止めするストッパを設けておいてもよい。
本実施形態によれば、前記ストッパが、操作レバーを無理に引き出そうとした場合の操作レバーの破損を防止する。
【０００９】
本発明の他の実施形態としては、カバーの開放用操作孔の開口縁部に、ハウジングから飛び出した操作レバーの頭部端面に当接するストッパを設けておいてもよい。
本実施形態によれば、ストッパに当接する操作レバーの衝突音で操作レバーが結線状態になったか否かを確認でき、作業性が向上する。
【００１０】
本発明にかかる他の電線接続コネクタは、ハウジングに設けた挿入孔から略Ｌ字形の操作レバーを軸心方向に挿入して押し込み、前記ハウジングに内蔵した略Ｖ字形の板バネを弾性変形させることにより、前記ハウジングに内蔵した接続金具と前記板バネとの間に間隙を形成する開放状態とした後、前記間隙に電線を位置決めし、ついで、前記操作レバーを引き戻して前記板バネを弾性復帰させることにより、前記接続金具と前記板バネとで前記電線を挟持して結線状態とする電線接続コネクタ本体と、前記電線接続コネクタ本体に回動可能に取り付けられ、組み合せて形成した空間内に前記電線接続コネクタ本体を収納する第１，第２外部カバーとからなり、前記第１外部カバーに、前記ハウジングの側面と開放状態に位置する前記操作レバーの頭部との間に挿入して前記操作レバーを操作する突部を、設けた構成としてある。
【００１１】
本発明の電線接続コネクタによれば、電線接続コネクタ本体のハウジングから操作レバーが突出していても、第１，第２外部カバーが被覆，収納するので、外部から障害物が偶発的に衝突することがなく、誤動作を防止できる。
また、第１外部カバーに設けた突部が開放状態に位置する操作レバーの頭部を操作する。このため、第１外部カバーを回動して電線接続コネクタに組み付けるだけで自動的に前記操作レバーを結線状態にすることができ、ワンタッチで操作レバーを操作できる。このため、複数本の操作レバーを並設している場合には、著しく作業性を向上させることができる。
【００１２】
本発明の実施形態としては、第１外部カバーに、電線接続コネクタ本体から飛び出した操作レバーの一端面に当接するストッパを、設けておいてもよい。
本実施形態によれば、操作レバーの抜け落ちを防止できるだけでなく、操作レバーと第１外部カバーのストッパとの衝突音で操作レバーが結線状態にあることを確認でき、作業性が向上する。
【００１３】
本発明の他の実施形態としては、第１，第２外部カバーが磁気シールド機能を備えていてもよい。
本実施形態によれば、第１，第２外部カバーが電線接続コネクタの誤動作を防止できるだけでなく、磁気シールドによって外乱の影響をも防止できるという効果がある。
【００１４】
【発明の実施の形態】
本発明にかかる実施形態を図１ないし図８の添付図面に従って説明する。
本発明にかかる第１実施形態は、図１ないし図４に示すように、電線接続コネクタ１０に適用した場合である。
【００１５】
前記電線接続コネクタ１０は、図２に示すように、ケース２０、ベース５０からなるハウジング１１にカバー７０を組み付けて形成される内部空間内に、接続金具３０、板バネ４０および操作レバー６０を組み込んだものである。なお、１２はロックレバーである。
【００１６】
前記ケース２０は、その上面片側に後述するベース５０およびカバー７０を嵌合できる凹所２１を設けた樹脂成形品である。前記ケース２０は、その両側腕部２２，２３の内向面にガイド溝２４，２４をそれぞれ形成してあるとともに、そのガイド溝２４内に係合用凹部２４ａ，２４ｂをそれぞれ形成してある。前記係合用凹部２４ａ，２４ｂは後述するケース５０およびカバー７０を位置決めするためのものである。さらに、前記腕部２２，２３の間に位置する凹所２１の底面には複数の位置決め用溝部２５を並設してある。また、前記ケース２０の片側端面には、後述する接続金具３０のピン端子３１が突出する嵌合用開口部２６が形成されている（図３）。
【００１７】
接続金具３０はプレス加工で打ち抜いた金属板からなり、その片側縁部からピン端子３１が側方に突出している。さらに、前記接続金具３０は、その上下縁部に曲げ加工をそれぞれ施し、上折り曲げ片３２および下折り曲げ片３３を形成してある。前記下折り曲げ片３３には後述する板バネ４０を位置決めするための位置決め孔３４が設けられている（図３）。
【００１８】
板バネ４０は、図３に示すように、帯状バネ材を折り曲げて略Ｖ字形に形成したものであり、その屈曲部４１に連続する中継保持部４２に、第１曲げ部４３、第２曲げ部４４、および、押圧舌部４５を順次形成してある。さらに、前記板バネ４０の底辺部４６には前記接続金具３０の位置決め孔３４に係合する位置決め突起４７が突き出し加工で形成されている。
【００１９】
そして、前記接続金具３０の位置決め孔３４に板バネ４０の位置決め突起４７を係合一体化することにより、押圧舌部４５が上折り曲げ片３２の下面縁部に圧接する。ついで、前記ケース２０の底面に並設した複数の位置決め用溝部２５に前記接続金具３０の下折り曲げ片３３をそれぞれ位置決めして組み付けることにより、ピン端子３１がケース２０の嵌合用開口部２６に突出する（図３）。
【００２０】
ベース５０は、前記ケース２０の凹所２１に嵌合可能な形状を有し、かつ、透明な樹脂材で形成されている。特に、前記ベース５０は、その対向する両側側面にガイド用段部５１，５１を形成してあるとともに、前記ガイド用段部５１に係合用凸部５２を突設してある。さらに、前記ベース５０の対向する両側端面のうち、片側端面には電線用挿入孔５３および操作レバー用挿入孔５４が上下に形成されている。さらに、前記ベース５０の内部には、前記電線用挿入孔５３と操作レバー用挿入孔５４とに連通する空間を仕切る仕切壁５５が形成されている。
【００２１】
そして、前記ケース２０の腕部２２，２３間にベース５０を挿入し、腕部２２，２３のガイド溝２４，２４にベース５０の段部５１，５１を嵌合してスライドさせ、腕部２２，２３の凹部２４ａにベース５０の凸部５２を係合することにより、ベース５０を抜け止めする。
【００２２】
操作レバー６０は正面略Ｌ字形であり、その軸部６１の下面先端縁部にアール面６２を形成してある一方、その頭部６３の外向面に操作溝６４が形成されている。
【００２３】
そして、前記操作レバー６０の軸部６１をベース５０の挿入孔５４に挿入して押し込むと、前記軸部６１の先端部がベース５０の仕切壁５５と板バネ４０の中継保持部４２との間に圧接，挟持される。
【００２４】
カバー７０は、前記ケース２０の両側腕部２２，２３の間にスライド挿入可能な形状であるとともに、その対向する両側側面にガイド用段部７１，７１を形成してある。前記ガイド用段部７１には係合用凸部７２を突設してある。さらに、カバー７０の両側端面のうち、その片側端面は前記カバー５０に側方から接合可能な形状を有する一方、残る片側端面に電線用挿入孔７３および開放用操作孔７４を上下に設けてある。前記操作孔７４の開口縁部には前記操作レバー６０の飛び出しを防止するストッパ７５を形成してある。さらに、前記カバー７０の底面縁部には切り欠き部７６ａを設けてある。この切り欠き部７６ａと前記ケース５０の片側端面とで、前記開放用操作孔７４に連通し、かつ、前記操作レバー６０の頭部６３を操作できる結線用長孔７６を形成できる。
【００２５】
そして、前記ケース２０の腕部２２，２３の間にカバー７０を挿入し、腕部２２，２３のガイド溝２４，２４にカバー７０の段部７１を嵌合してスライドさせ、腕部２２，２３の凹部２４ｂ，２４ｂにカバー７０の凸部７２，７２を係合する。これにより、カバー７０を抜け止めできるとともに、その電線用挿入孔７３が前記ベース５０の電線用挿入孔５３に連通する。さらに、図３Ａに示すように、前記カバー７０の開放用操作孔７４から操作レバー６０の頭部６３を目視できる。また、前記切り欠き部７６ａと前記ケース５０の片側端面とで結線用長孔７６が形成される。そして、前記結線用長孔７６から操作レバー６０の軸部６１を目視できる（図４Ａ）。
【００２６】
次に、前述の構成からなる電線接続コネクタの操作方法を説明する。
まず、開放用操作孔７４から操作レバー６０の頭部６３を図示しない操作棒で押し込むと、操作レバー６０の軸部６１のアール面６２が板バネ４０の中継保持部４２から第１曲げ部４３を乗り越え、板バネ４０を押し下げる。このため、操作レバー６０の軸部６１が板バネ４０とベース５０の仕切壁５５とで挟持される。この結果、押圧舌片４５の自由端部と接続金具３０の上折り曲げ片３２との間に間隙が生ずる。このとき、前記結線用長孔７６から操作レバー６０の頭部６３を目視できる。本実施形態によれば、押し込まれた操作レバー６０の軸部６１のほぼ上面全体がベース５０の仕切壁５５に圧接しているので、操作レバー６０が破損しにくいという利点がある。
【００２７】
ついで、カバー７０の電線用挿入孔７３から電線１００を挿入し、その芯線１０１を接続金具３０の上折り曲げ片３２と押圧舌片４５の先端縁部との間に位置決めする。本実施形態によれば、ベース５０が透明樹脂材で形成されているので、電線１００の芯線１０１が所定の位置に配置されているか否かをベース５０の外方から目視でき、結線作業の作業性を向上させることができるという利点がある。
【００２８】
そして、結線用長孔７６に操作棒を押し込むと、操作レバー６０が外方に少しスライド移動した後、弾性復帰する板バネ４０のバネ力で操作レバー６０が外方に瞬間的に押し出される。このため、操作レバー６０の頭部６３がストッパ７５に衝突して衝突音を発する。この結果、板バネ４０が弾性復帰し、接続金具３０の上折り曲げ片３２と板バネ４０の押圧舌片４５とが電線１００の芯線１０１を挟持して結線状態となる。
【００２９】
本実施形態では、前記操作レバー６０は前記板バネ４０のバネ力で外方に向けて飛び出そうとするが、前記操作レバー６０の頭部６３がカバー７０のストッパ７５に衝突して係止される。特に、前記操作レバー６０の頭部６３がカバー７０のストッパ７５に衝突した際に衝突音が生じ、衝突音で操作レバー６０の動作を確認できる。また、操作レバー６０の頭部６３の内向面にオレンジ色等の目立つ塗装を行なっておけば、より一層確認が容易になる。
【００３０】
本実施形態によれば、開放作業および結線作業を１種類の押圧操作だけで処理でき、作業性が高い。
【００３１】
また、操作レバー６０の位置が結線状態である場合には、カバー７０の開放用操作孔７４から操作レバー６０の頭部６３を明確に目視できる一方、結線用長孔７６から操作レバー６０の頭部６３を目視できない。さらに、操作レバー６０の位置が開放状態である場合には、カバー７０の開放用操作孔７４から操作レバー６０の頭部６３を目視しにくいが、結線用長孔７６から操作レバー６０の頭部６３を明確に目視できる。このように、本実施形態によれば、操作レバー６０の位置を２つの方向から目視することにより、結線状態あるいは開放状態を確認でき、便利である。
【００３２】
さらに、本実施形態によれば、結線用長孔７６から複数の操作レバー６０の頭部６３を一目で目視できる。このため、操作レバー６０を１本ずつ選択して操作できるだけでなく、前記結線用長孔７６に巾広の操作棒を挿入すれば、複数の操作レバー６０を一度に操作でき、作業性がより一層向上する。
【００３３】
第２実施形態は図５ないし図８に示すように、電線接続コネクタ本体１３を第１外部カバー８０および第２外部カバー９０内に収納する場合である。
【００３４】
前記電線接続コネクタ本体１３は、図６に示すように、前述の第１実施形態とほぼ同様であり、大きく異なる点は第１実施形態におけるカバー７０を設けない点である。このため、第２実施形態にかかるケース２０の両側腕部２２，２３は第１実施形態のケース２０の両側腕部２２，２３よりも短い。この結果、ベース５０の挿入孔５４に操作レバー６０の軸部６１をそれぞれ挿入すると、ベース５０の外側面から操作レバー６０の頭部６３が突出する。なお、第１実施形態と同一部分には同一番号を附して説明を省略する。
【００３５】
第１，第２外部カバー８０，９０は、前記電線接続コネクタ本体１３を上下から被覆できる形状を有している。特に、前記第１外部カバー８０の底面には、前記操作レバー６０の頭部６３を操作してスライド移動させる操作用突条８１と、操作レバー６０の飛び出しを防止するストッパ８２とが形成されている。
【００３６】
そして、第１，第２外部カバー８０，９０は、ケース２０の両側面縁部に突設した軸部２０ａ，２０ｂに、軸孔８３，９１をそれぞれ係合して回動可能に支持されている。このため、第１，第２外部カバー８０，９０を回動し、その突き合わせ面にそれぞれ形成した係合爪８４，９２を係合孔９３，８５にそれぞれ係合して一体化すると、電線接続コネクタ本体１３が被覆され、電線挿入孔１４，１５が形成される（図５）。
【００３７】
次に、第２実施形態にかかる電線接続コネクタの操作方法について説明する。まず、電線（図示せず）を接続する場合には、図７Ａに示すように、第１，第２外部カバー８０，９０を開く。そして、突出している各操作レバー６０の頭部６３を図示しない操作棒でベース５０内にそれぞれ押込み、操作レバー６０の軸部６１で第１曲げ部４３を押し下げる。この結果、板バネ４０が弾性変形して押圧舌片４５が押し下げられ、上折り曲げ片３２の下面縁部と押圧舌片４５との間に間隙を形成する（図７Ｂ）。ついで、電線用挿入孔５３から図示しない電線を挿入し、その芯線を上折り曲げ片２２の下面縁部と押圧舌片４５との間に位置決めする。このとき、ベース５０が透明な樹脂材で形成されているので、芯線の位置を目視できる。
【００３８】
そして、第１外部カバー５０を回動して電線接続コネクタ本体１３に組み付けることにより、第１外部カバー８０の突条８１がベース５０と操作レバー６０の頭部６３との間に挿入される。このため、操作レバー６０が少し外方に押し出されてスライド移動した後、板バネ４０のバネ力で操作レバー６０が瞬間的に押し出される。しかし、操作レバー６０の頭部６３が第１外部カバー８０のストッパ８２に衝突し、操作レバー６０の飛び出しを防止する。このとき、操作レバー６０が衝突音を発し、その衝突音で操作レバー６０の動作を確認できる。
【００３９】
ついで、第２外部カバー９０を回動して第１外部カバー８０に組み付け、その係合爪８４，９２を係合孔９３，８４にそれぞれ係合することにより、電線の結線作業が終了する。
【００４０】
本実施形態によれば、挿入孔５４から突出する操作レバー６０の頭部６３を個々に押圧して開放状態にできるだけでなく、巾広の操作棒で複数の操作レバー６０を同時に押圧して開放状態にすることができる。さらに、電線接続コネクタ本体１３に第１外部カバー８０を組み付けることにより、第１外部カバー８０の突条８１が複数の操作レバー６０の頭部６３を同時に駆動して結線状態とする。このため、複数本の電線の結線作業をワンタッチで行なうことができ、作業性が著しく向上するという利点がある。
【００４１】
また、電線接続コネクタ本体１３に第１外部カバー８０を組み付け、操作レバー６０を一括して結線状態とした後、電線接続コネクタ本体１３に第２外部カバー９０を組み付けることができる。このため、全ての電線の結線状態を確認した後、第２外部カバー９０を組み付けることができるので、結線不良の発生を未然に防止できる。
【００４２】
なお、第２実施形態かかる前記第１，第２外部カバー８０，９０は磁気シールドできるように金属板にプレス加工を施して形成してもよく、あるいは、樹脂成形品に金属メッキを施して形成してもよい。また、プレス加工を施して形成した金属板と、樹脂成形品とを組み合わせて磁気シールド用第１，第２外部カバー８０，９０を形成してよい。
【００４３】
また、前述の実施形態では、接続金具３０にピン端子３１を有する場合について説明したが、ソケット端子を有する接続金具に適用してもよい。
【００４４】
【発明の効果】
本発明によれば、操作レバー全体がハウジングおよびカバー内に収納される。このため、外部から障害物が偶発的に衝突することがなく、誤動作を防止できる。また、操作レバーを開閉状態および結線状態のいずれの状態に操作する場合でも、操作棒を押し込む１種類の操作で処理できるので、作業性が向上する。特に、操作レバーを開閉状態および結線状態のいずれの状態に操作する場合であっても、押込み力に大差がなく、作業性がより一層向上するという効果がある。
【図面の簡単な説明】
【図１】本発明にかかる電線接続コネクタの第１実施形態を示す斜視図である。
【図２】図１の分解斜視図である。
【図３】図１で示した電線接続コネクタの操作前後の断面図である。
【図４】図１で示した電線接続コネクタの操作前後の斜視図である。
【図５】本発明にかかる電線接続コネクタの第２実施形態を示し、図５Ａは全体斜視図、図５Ｂは外部カバーを開いた状態を示す斜視図である。
【図６】図５の分解斜視図である。
【図７】図５で示した電線接続コネクタの操作途中の断面図である。
【図８】図５で示した電線接続コネクタの操作途中の断面図である。
【符号の説明】
１０…電線接続コネクタ、１１…ハウジング、１２…ロックレバー、１３…電線接続コネクタ本体、２０…ケース、２１…凹所、２２，２３…腕部、２４…ガイド溝、２４ａ，２４ｂ…係合用凹部、２５…位置決め用溝部、３０…接続金具、３１…ピン端子、３２…上折り曲げ片、３３…下折り曲げ片、４０…板バネ、４１…屈曲部、４２…中継保持部、４３…第１曲げ部、４４…第２曲げ部、４５…押圧舌片、４６…底辺部、５０…ベース、５１…段部、５３…電線用挿入孔、５４…操作レバー用挿入孔、５５…仕切壁、６０…操作レバー、６１…軸部、６２…アール面、６３…頭部、６４…操作溝、７０…カバー、７１…段部、７３…電線挿入溝、７４…開放用操作孔、７５…ストッパ、７６…結線用長孔、７６ａ…切り欠き部、８０…第１外部カバー、８１…突条、８２…ストッパ、９０…第２外部カバー、１００…電線、１０１…芯線。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric wire connection connector, and more particularly to an electric wire connection connector that sandwiches an electric wire between a connection fitting and a leaf spring that is in pressure contact with the connection fitting.
[0002]
[Prior art]
Conventionally, as an electric wire connection connector, for example, there is a relay connector disclosed in Japanese Patent Laid-Open No. 10-12294.
That is, it is a relay connector provided with an electric wire fixing mechanism having housings 5 and 19, terminal fittings 7 and 21, leaf springs 9 and 23, and release buttons 11 and 25. For example, after the release button 11 is pushed into the housing 5 to elastically deform the leaf spring 9, the electric wire 31 is inserted into the housing 5. Next, the release button 11 is pulled back to elastically return the leaf spring 9, so that the electric wire 31 is pressed and sandwiched between the terminal fitting 7 and the leaf spring 9 to be electrically connected.
[0003]
[Problems to be solved by the invention]
However, in the relay connector described above, the release buttons 11 and 25 are exposed from the housing 5, respectively. For this reason, for example, when an obstacle accidentally collides with the release buttons 11 and 25, the lock is released and the electric wire 31 may fall off.
[0004]
In the relay connector, the release buttons 11 and 25 are pushed in to be in an open state, while the release buttons 11 and 25 are pulled back to be in a connected state. For this reason, it is necessary to perform two different types of operations, that is, a pressing operation and a pulling back operation, in the detaching operation of the electric wire 31, and workability is poor. In particular, when the release button is returned, a pulling force larger than the pushing force required when the release buttons 11 and 25 are pushed in is required, and there is a problem that workability is further deteriorated.
[0005]
In view of the above-described problems, an object of the present invention is to provide a wire connection connector that does not malfunction and has good workability.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the electric wire connector according to the present invention inserts and pushes a substantially L-shaped operation lever in an axial direction from an insertion hole provided in the housing, and pushes the substantially V-shaped leaf spring built in the housing. Is elastically deformed to form a gap between the connection fitting built in the housing and the leaf spring, and after opening the gap, the electric wire is positioned in the gap, and then the operation lever is pulled back to By elastically restoring the leaf spring, in the wire connection connector that clamps the wire between the connection fitting and the leaf spring, the cover is assembled to the housing to house the head of the operation lever. The cover is provided with an opening operation hole that can press the head of the operation lever positioned in a wired state in an axial direction, and the housing and the cover Between, there the head of the operating lever located in an open state as structure in which a connection for operation hole that can be operated.
[0007]
According to the present invention, the entire operation lever is accommodated in the housing and the cover. For this reason, an obstacle does not collide accidentally from the outside, and malfunction can be prevented. In addition, even when the operating lever is operated in either the open / closed state or the connected state, processing can be performed by one type of operation of pushing the operating rod, so that workability is improved. In particular, even when the operation lever is operated in either the open / closed state or the connected state, there is no great difference in the pushing force, and the workability is further improved.
[0008]
As an embodiment of the present invention, the cover may be provided with a stopper for preventing the operation lever pulled out from the housing from coming off.
According to this embodiment, the stopper prevents the operation lever from being damaged when the operation lever is forcibly pulled out.
[0009]
As another embodiment of the present invention, a stopper that comes into contact with the head end face of the operation lever protruding from the housing may be provided at the opening edge of the opening operation hole of the cover.
According to the present embodiment, it is possible to confirm whether or not the operating lever has been connected by the collision sound of the operating lever that contacts the stopper, and workability is improved.
[0010]
Another electric wire connector according to the present invention inserts and pushes a substantially L-shaped operation lever in an axial direction from an insertion hole provided in the housing, and elastically deforms a substantially V-shaped leaf spring built in the housing. Thus, an open state is formed in which a gap is formed between the connection fitting built in the housing and the leaf spring, and then the electric wire is positioned in the gap, and then the operation lever is pulled back to elastically return the leaf spring. Thus, the electric wire is connected to the wire fitting connector and the leaf spring so that the electric wire is connected to the electric wire connecting connector main body, and the electric wire connecting connector main body is rotatably attached to the electric wire connecting connector main body. The first and second outer covers that house the connector main body, and the operation lever located on the side surface of the housing in an open state is disposed on the first outer cover. The projection for operating the operating lever is inserted between the over the head, it is constituted provided.
[0011]
According to the wire connection connector of the present invention, even if the operation lever protrudes from the housing of the wire connection connector body, the first and second outer covers are covered and housed, so that an obstacle may accidentally collide from the outside. And malfunction can be prevented.
Further, the head of the operation lever in which the protrusion provided on the first outer cover is located in the open state is operated. For this reason, the operating lever can be automatically brought into a connected state simply by rotating the first outer cover and assembling it to the electric wire connecting connector, and the operating lever can be operated with one touch. For this reason, when a plurality of operation levers are arranged in parallel, workability can be remarkably improved.
[0012]
As an embodiment of the present invention, the first outer cover may be provided with a stopper that comes into contact with one end surface of the operation lever protruding from the wire connector main body.
According to this embodiment, it is possible not only to prevent the operation lever from falling off, but also to confirm that the operation lever is in a connected state by a collision sound between the operation lever and the stopper of the first outer cover, thereby improving workability.
[0013]
As another embodiment of the present invention, the first and second outer covers may have a magnetic shield function.
According to the present embodiment, the first and second outer covers not only can prevent malfunction of the wire connector, but also have an effect that the influence of disturbance can be prevented by the magnetic shield.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described with reference to the accompanying drawings of FIGS.
1st Embodiment concerning this invention is a case where it applies to the electric wire connection connector 10, as shown in FIG.
[0015]
As shown in FIG. 2, the electric wire connection connector 10 includes a connection fitting 30, a leaf spring 40, and an operation lever 60 in an internal space formed by assembling a cover 70 to a housing 11 including a case 20 and a base 50. It is a thing. Reference numeral 12 denotes a lock lever.
[0016]
The case 20 is a resin molded product in which a recess 21 into which a base 50 and a cover 70 (to be described later) can be fitted is provided on one side of the upper surface. The case 20 has guide grooves 24, 24 formed on the inward surfaces of both side arm portions 22, 23, and engaging recesses 24 a, 24 b respectively formed in the guide grooves 24. The engaging recesses 24a and 24b are for positioning a case 50 and a cover 70 described later. Further, a plurality of positioning groove portions 25 are arranged in parallel on the bottom surface of the recess 21 located between the arm portions 22 and 23. Further, a fitting opening 26 from which a pin terminal 31 of a connection fitting 30 described later is projected is formed on one end face of the case 20 (FIG. 3).
[0017]
The connection fitting 30 is made of a metal plate punched out by pressing, and a pin terminal 31 protrudes laterally from one side edge portion thereof. In addition, the upper and lower edges of the connection fitting 30 are bent to form an upper bent piece 32 and a lower bent piece 33, respectively. The lower bent piece 33 is provided with a positioning hole 34 for positioning a leaf spring 40 described later (FIG. 3).
[0018]
As shown in FIG. 3, the leaf spring 40 is formed by bending a belt-shaped spring material into a substantially V shape, and includes a first bending portion 43 and a second bending portion on a relay holding portion 42 continuous with the bending portion 41. A portion 44 and a pressing tongue 45 are sequentially formed. Further, a positioning projection 47 that engages with the positioning hole 34 of the connection fitting 30 is formed on the bottom side portion 46 of the leaf spring 40 by extrusion.
[0019]
Then, the positioning protrusion 47 of the leaf spring 40 is engaged and integrated with the positioning hole 34 of the connection fitting 30, so that the pressing tongue 45 is pressed against the lower surface edge of the upper bent piece 32. Next, the pin terminal 31 protrudes into the fitting opening 26 of the case 20 by positioning and assembling the lower bent pieces 33 of the connection fittings 30 in the plurality of positioning grooves 25 arranged in parallel on the bottom surface of the case 20. (FIG. 3).
[0020]
The base 50 has a shape that can be fitted into the recess 21 of the case 20 and is formed of a transparent resin material. In particular, the base 50 has guide step portions 51, 51 formed on opposite side surfaces thereof, and an engaging convex portion 52 protruding from the guide step portion 51. Further, an electric wire insertion hole 53 and an operation lever insertion hole 54 are formed vertically on one side end surface of the opposite side end surfaces of the base 50. Further, a partition wall 55 is formed inside the base 50 to partition a space communicating with the wire insertion hole 53 and the operating lever insertion hole 54.
[0021]
Then, the base 50 is inserted between the arm portions 22, 23 of the case 20, the step portions 51, 51 of the base 50 are fitted into the guide grooves 24, 24 of the arm portions 22, 23, and are slid. , 23 is engaged with the convex portion 52 of the base 50 to prevent the base 50 from coming off.
[0022]
The operation lever 60 is substantially L-shaped in front, and has a rounded surface 62 formed at the edge of the lower end of the shaft portion 61, while an operation groove 64 is formed on the outward surface of the head 63.
[0023]
When the shaft portion 61 of the operation lever 60 is inserted into the insertion hole 54 of the base 50 and pushed in, the tip portion of the shaft portion 61 is located between the partition wall 55 of the base 50 and the relay holding portion 42 of the leaf spring 40. Is pressed and clamped.
[0024]
The cover 70 has a shape that can be slidably inserted between the both side arm portions 22 and 23 of the case 20, and guide step portions 71 and 71 are formed on opposite side surfaces thereof. Engaging convex portions 72 are projected from the guide step portion 71. Further, of the both end faces of the cover 70, one end face thereof has a shape that can be joined to the cover 50 from the side, while the remaining one end face is provided with a wire insertion hole 73 and an opening operation hole 74 vertically. . A stopper 75 that prevents the operation lever 60 from popping out is formed at the opening edge of the operation hole 74. Further, a notch 76 a is provided at the bottom edge of the cover 70. The notch 76a and one end face of the case 50 can be connected to the opening operation hole 74 and can form a connection long hole 76 that can operate the head 63 of the operation lever 60.
[0025]
Then, the cover 70 is inserted between the arm portions 22 and 23 of the case 20, and the step portions 71 of the cover 70 are fitted and slid into the guide grooves 24 and 24 of the arm portions 22 and 23. The convex portions 72 and 72 of the cover 70 are engaged with the concave portions 24 b and 24 b of the 23. Accordingly, the cover 70 can be prevented from coming off, and the wire insertion hole 73 communicates with the wire insertion hole 53 of the base 50. Further, as shown in FIG. 3A, the head 63 of the operation lever 60 can be visually observed from the opening operation hole 74 of the cover 70. In addition, a long hole for connection 76 is formed by the cutout portion 76a and one end face of the case 50. And the axial part 61 of the operation lever 60 can be visually observed from the said connection long hole 76 (FIG. 4A).
[0026]
Next, an operation method of the electric wire connector having the above-described configuration will be described.
First, when the head 63 of the operation lever 60 is pushed into the opening operation hole 74 with an operation rod (not shown), the rounded surface 62 of the shaft portion 61 of the operation lever 60 is moved from the relay holding portion 42 of the leaf spring 40 to the first bent portion 43. The leaf spring 40 is pushed down. For this reason, the shaft portion 61 of the operation lever 60 is sandwiched between the leaf spring 40 and the partition wall 55 of the base 50. As a result, a gap is generated between the free end portion of the pressing tongue 45 and the upper bent piece 32 of the connection fitting 30. At this time, the head 63 of the operation lever 60 can be seen through the long hole 76 for connection. According to the present embodiment, since almost the entire upper surface of the shaft portion 61 of the operation lever 60 that is pushed in is pressed against the partition wall 55 of the base 50, there is an advantage that the operation lever 60 is not easily damaged.
[0027]
Next, the electric wire 100 is inserted from the electric wire insertion hole 73 of the cover 70, and the core wire 101 is positioned between the upper bent piece 32 of the connection fitting 30 and the tip edge of the pressing tongue 45. According to the present embodiment, since the base 50 is formed of a transparent resin material, it can be seen from the outside of the base 50 whether or not the core wire 101 of the electric wire 100 is disposed at a predetermined position, and the work of the wiring work There is an advantage that the performance can be improved.
[0028]
Then, when the operating rod is pushed into the connection elongated hole 76, the operating lever 60 is momentarily pushed outward by the spring force of the leaf spring 40 that is elastically restored after the operating lever 60 is slightly slid outward. For this reason, the head 63 of the operation lever 60 collides with the stopper 75 to generate a collision sound. As a result, the plate spring 40 is elastically restored, and the upper bent piece 32 of the connection fitting 30 and the pressing tongue piece 45 of the plate spring 40 sandwich the core wire 101 of the electric wire 100 and are connected.
[0029]
In this embodiment, the operation lever 60 tries to jump outward by the spring force of the leaf spring 40, but the head 63 of the operation lever 60 collides with the stopper 75 of the cover 70 and is locked. The In particular, a collision sound is generated when the head 63 of the operation lever 60 collides with the stopper 75 of the cover 70, and the operation of the operation lever 60 can be confirmed by the collision sound. Further, if the inward surface of the head 63 of the operation lever 60 is painted conspicuous in orange or the like, the confirmation becomes even easier.
[0030]
According to the present embodiment, the opening work and the wiring work can be processed by only one type of pressing operation, and workability is high.
[0031]
When the position of the operation lever 60 is in the connection state, the head 63 of the operation lever 60 can be clearly seen from the operation hole 74 for opening the cover 70, while the head of the operation lever 60 is connected from the connection long hole 76. The part 63 cannot be visually observed. Further, when the position of the operation lever 60 is in the open state, it is difficult to see the head 63 of the operation lever 60 from the opening operation hole 74 of the cover 70, but the head of the operation lever 60 from the connection long hole 76. 63 is clearly visible. As described above, according to the present embodiment, the connection state or the open state can be confirmed by viewing the position of the operation lever 60 from two directions, which is convenient.
[0032]
Furthermore, according to the present embodiment, the heads 63 of the plurality of operation levers 60 can be seen at a glance from the long holes for connection 76. For this reason, not only can the operation levers 60 be selected and operated one by one, but if a wide operation rod is inserted into the long hole 76 for connection, a plurality of operation levers 60 can be operated at a time, thereby improving workability. Further improve.
[0033]
In the second embodiment, as shown in FIGS. 5 to 8, the wire connector main body 13 is housed in the first outer cover 80 and the second outer cover 90.
[0034]
As shown in FIG. 6, the wire connector main body 13 is substantially the same as that of the first embodiment described above, and is greatly different in that the cover 70 in the first embodiment is not provided. For this reason, both side arm parts 22 and 23 of case 20 concerning a 2nd embodiment are shorter than both side arm parts 22 and 23 of case 20 of a 1st embodiment. As a result, when the shaft portion 61 of the operation lever 60 is inserted into the insertion hole 54 of the base 50, the head 63 of the operation lever 60 protrudes from the outer surface of the base 50. In addition, the same number is attached | subjected to the same part as 1st Embodiment, and description is abbreviate | omitted.
[0035]
The first and second outer covers 80 and 90 have a shape capable of covering the wire connecting connector body 13 from above and below. In particular, on the bottom surface of the first outer cover 80, there are formed an operating ridge 81 for operating and sliding the head 63 of the operating lever 60, and a stopper 82 for preventing the operating lever 60 from popping out. Yes.
[0036]
The first and second outer covers 80 and 90 are rotatably supported by engaging the shaft holes 83 and 91 with the shaft portions 20a and 20b protruding from the side edge portions of the case 20, respectively. Yes. For this reason, when the first and second outer covers 80 and 90 are rotated and the engaging claws 84 and 92 formed on the abutting surfaces are engaged with the engaging holes 93 and 85, respectively, The connector body 13 is covered to form the wire insertion holes 14 and 15 (FIG. 5).
[0037]
Next, the operation method of the electric wire connection connector concerning 2nd Embodiment is demonstrated. First, when connecting an electric wire (not shown), the first and second outer covers 80 and 90 are opened as shown in FIG. 7A. Then, the protruding heads 63 of the operating levers 60 are pushed into the base 50 by operating rods (not shown), and the first bent portions 43 are pushed down by the shafts 61 of the operating levers 60. As a result, the leaf spring 40 is elastically deformed and the pressing tongue 45 is pushed down, thereby forming a gap between the lower edge of the upper bent piece 32 and the pressing tongue 45 (FIG. 7B). Next, an electric wire (not shown) is inserted from the electric wire insertion hole 53, and the core wire is positioned between the lower edge of the upper bent piece 22 and the pressing tongue 45. At this time, since the base 50 is formed of a transparent resin material, the position of the core wire can be visually observed.
[0038]
Then, the first outer cover 50 is rotated and assembled to the wire connector main body 13, whereby the protrusion 81 of the first outer cover 80 is inserted between the base 50 and the head 63 of the operation lever 60. For this reason, after the operating lever 60 is pushed outward slightly and slid, the operating lever 60 is momentarily pushed out by the spring force of the leaf spring 40. However, the head 63 of the operation lever 60 collides with the stopper 82 of the first outer cover 80 to prevent the operation lever 60 from popping out. At this time, the operation lever 60 emits a collision sound, and the operation of the operation lever 60 can be confirmed by the collision sound.
[0039]
Next, the second external cover 90 is rotated and assembled to the first external cover 80, and the engaging claws 84 and 92 are engaged with the engaging holes 93 and 84, respectively, thereby completing the wire connection work.
[0040]
According to the present embodiment, not only can the heads 63 of the operation levers 60 protruding from the insertion holes 54 be individually pressed to be opened, but a plurality of operation levers 60 can be simultaneously pressed with a wide operation rod to be opened. Can be in a state. Further, by assembling the first external cover 80 to the wire connector main body 13, the protrusions 81 of the first external cover 80 simultaneously drive the heads 63 of the plurality of operation levers 60 to establish a connection state. For this reason, there is an advantage that the work of connecting a plurality of electric wires can be performed with one touch, and workability is remarkably improved.
[0041]
Further, after the first external cover 80 is assembled to the wire connection connector body 13 and the operation levers 60 are collectively connected, the second external cover 90 can be assembled to the wire connection connector body 13. For this reason, since the 2nd external cover 90 can be assembled | attached after confirming the connection state of all the electric wires, generation | occurrence | production of a connection defect can be prevented beforehand.
[0042]
The first and second outer covers 80 and 90 according to the second embodiment may be formed by pressing a metal plate so as to be magnetically shielded, or formed by metal plating on a resin molded product. May be. Moreover, you may form the 1st, 2nd outer covers 80 and 90 for magnetic shields combining the metal plate formed by giving a press work, and a resin molded product.
[0043]
In the above-described embodiment, the case where the connection fitting 30 has the pin terminal 31 has been described. However, the connection fitting 30 may be applied to a connection fitting having a socket terminal.
[0044]
【The invention's effect】
According to the present invention, the entire operation lever is accommodated in the housing and the cover. For this reason, an obstacle does not collide accidentally from the outside, and malfunction can be prevented. In addition, when the operation lever is operated in either the open / closed state or the connected state, processing can be performed by one type of operation of pushing the operating rod, so that workability is improved. In particular, even when the operating lever is operated in either the open / closed state or the connected state, there is no great difference in the pushing force, and the workability is further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a wire connecting connector according to the present invention.
FIG. 2 is an exploded perspective view of FIG.
3 is a cross-sectional view of the electric wire connector shown in FIG. 1 before and after operation.
4 is a perspective view before and after operation of the wire connection connector shown in FIG. 1. FIG.
5A and 5B show a second embodiment of the electric wire connector according to the present invention, FIG. 5A is an overall perspective view, and FIG. 5B is a perspective view showing a state in which an external cover is opened.
6 is an exploded perspective view of FIG. 5. FIG.
7 is a cross-sectional view in the middle of operation of the wire connection connector shown in FIG. 5. FIG.
8 is a cross-sectional view in the middle of operation of the wire connection connector shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Wire connection connector, 11 ... Housing, 12 ... Lock lever, 13 ... Wire connection connector main body, 20 ... Case, 21 ... Recess, 22, 23 ... Arm part, 24 ... Guide groove, 24a, 24b ... Recess for engagement , 25 ... positioning groove part, 30 ... connection fitting, 31 ... pin terminal, 32 ... upper bent piece, 33 ... lower bent piece, 40 ... leaf spring, 41 ... bent part, 42 ... relay holding part, 43 ... first bent , 44 ... second bent part, 45 ... pressing tongue piece, 46 ... bottom part, 50 ... base, 51 ... step part, 53 ... wire insertion hole, 54 ... operation lever insertion hole, 55 ... partition wall, 60 ... an operation lever, 61 ... shaft part, 62 ... round surface, 63 ... head, 64 ... operation groove, 70 ... cover, 71 ... step part, 73 ... wire insertion groove, 74 ... opening operation hole, 75 ... stopper, 76 ... long hole for connection, 76a ... notch, 80 ... 1 outer cover, 81 ... rib, 82 ... stopper, 90 ... second outer cover, 100 ... wire, 101 ... core wire.

Claims

A substantially L-shaped operating lever is inserted and pushed in an axial direction from an insertion hole provided in the housing, and a substantially V-shaped leaf spring built in the housing is elastically deformed, whereby the connection fitting built in the housing and the above-mentioned After the gap is formed between the leaf spring and an open state, the electric wire is positioned in the gap, and then the operation lever is pulled back to elastically return the leaf spring, whereby the connection fitting and the leaf spring In the electric wire connection connector which sandwiches the electric wire and makes the connection state,
A cover is assembled to the housing to house the head of the operating lever, and the cover is provided with an opening operating hole that can press the head of the operating lever positioned in a connected state in the axial direction. A wire connection connector characterized in that a connection operation hole is provided between the cover and the cover so as to operate a head of the operation lever located in an open state.

The wire connection connector according to claim 1, wherein the cover is provided with a stopper that prevents the operation lever pulled out from the housing from coming off.

The electric wire connection connector according to claim 1, wherein a stopper that abuts against an end face of the head of the operation lever protruding from the housing is provided at an opening edge of the operation hole for opening the cover.

A substantially L-shaped operating lever is inserted and pushed in an axial direction from an insertion hole provided in the housing, and a substantially V-shaped leaf spring built in the housing is elastically deformed, whereby the connection fitting built in the housing and the above-mentioned After opening the gap between the leaf spring and the leaf spring, the electric wire is positioned in the gap, and then the operation lever is pulled back to elastically return the leaf spring. A wire connecting connector main body sandwiching the electric wires to make a connection state;
The wire connection connector main body is rotatably attached to the first and second outer covers for storing the wire connection connector main body in a space formed by combination.
A wire connection connector, wherein the first outer cover is provided with a protrusion that is inserted between a side surface of the housing and a head of the operation lever located in an open state to operate the operation lever. .

The wire connection connector according to claim 4, wherein the first outer cover is provided with a stopper that comes into contact with one end surface of the operation lever protruding from the wire connection connector main body.

The electric wire connector according to claim 4 or 5, wherein the first and second outer covers have a magnetic shield function.