JP2004200070A

JP2004200070A - Low insertion force connector

Info

Publication number: JP2004200070A
Application number: JP2002368762A
Authority: JP
Inventors: Ichiro Terunuma; 一郎照沼; Takeshi Hasegawa; 健長谷川; Mutsumi Suwada; 睦諏訪田; Nobumasa Misaki; 信正見崎
Original assignee: Fujikura Ltd
Current assignee: Fujikura Ltd
Priority date: 2002-12-19
Filing date: 2002-12-19
Publication date: 2004-07-15

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low insertion force connector capable of facilitating fitting. <P>SOLUTION: The low insertion force connector 1 comprises a plug connector housing 10 and a receptacle connector housing 20, an engaging part 30 is installed in a fitting body part 11 of the plug connector housing 10, and a slip part 22, lever part 40, and ribs 51, 52 are installed in a fitting part 21 of the receptacle connector housing 20. The lever part 40 is capable of moving along the a recessed part 45 of the ribs 51, 52 and rotating on a projecting part 44, a tip part 41 is engaged with a recessed part 33 of the engaged part 30 inserted into the slit part 22, and by pressing the engaged part 30 in the fitting direction by utilizing this principle, the fitting body part 11 is completely fit to the inside of the fitting part 21. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、プラグコネクタハウジング及びレセプタクルコネクタハウジング同士を相互に容易に嵌合させたり、離脱させたりすることができる低挿入力コネクタに関する。
【０００２】
【従来の技術】
現在、エレクトロニクス化の急速な発展により、例えば自動車に搭載されるワイヤハーネスなどにおいても回路数（電線数）が年々増加する傾向にある。回路数の増加に伴い、ワイヤハーネスの端末部に取り付けられるコネクタも多極化（内蔵接続端子数の増加）が進展し、図８に示すような多極コネクタが多く使用されるようになってきた。この多極コネクタ１００は、内部に複数のレセプタクル接続端子（図示せず）を収容するための端子収容孔１０１が形成されたプラグコネクタハウジング１１０と、このプラグコネクタハウジング１１０が内側に嵌合すると共に内部に複数のプラグ接続端子１０２を収容するための端子収容孔（図示せず）が形成されたレセプタクルコネクタハウジング１２０と、このレセプタクルコネクタハウジング１２０に別途取り付けられたレバー１３０とから構成されている。この多極コネクタ１００のように、接続する接続端子数が増えれば、プラグコネクタハウジング１１０及びレセプタクルコネクタハウジング１２０同士の嵌合時／離脱時の接触抵抗が増加するため、両者の嵌合時の挿入力及び離脱時の引抜力もより高くなってしまう。そこで、これらの挿入力及び引抜力を低く抑えるために、レバー１３０等の倍力機構を備え、例えばプラグコネクタハウジング１１０の側面に突起１１１を形成し、レバー１３０にこの突起１１１と嵌合すると共にこの突起１１１をレセプタクルコネクタハウジング１２０の奥側に移動させるための溝１２１を形成して、レバー１３０を動かすことによりてこの原理を利用して両者を嵌合／離脱するようにしたいわゆるレバー式コネクタが知られている（例えば、特許文献１及び２参照。）。
【０００３】
【特許文献１】
特許第２７６２８９７号公報（第２−３頁、第１−５図）
【特許文献２】
特許第２９５６４９８号公報（第３−５頁、第１−１２図）
【０００４】
【発明が解決しようとする課題】
しかしながら、このようなレバー式コネクタに備えられているレバー１３０等の倍力機構は、その倍力機構を動作させるためのスペースを確保する必要があると共にてこの作用を大きくするために倍力機構を大きく（例えば、レバー１３０を大きくしたり、溝１２１を長くしたり）構成しなければならないため、レバー式コネクタ自体が大きくなる傾向にある。また、レバー式コネクタでは、プラグコネクタハウジング１１０及びレセプタクルコネクタハウジング１２０の他に別部品でレバー１３０を製造しコネクタに取り付けなければならないため、別途レバー成型金型などの製造設備が必要となり安価に製造することが困難である。
【０００５】
この発明は、このような事情に鑑みてなされたもので、適度な大きさで安価に製造することができると共に容易に嵌合を行うことができる低挿入力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】
この発明に係る低挿入力コネクタは、プラグコネクタハウジングと、このプラグコネクタハウジングと嵌合するレセプタクルコネクタハウジングとを有し、前記プラグコネクタハウジングは、側壁を有しこの側壁に沿って前記レセプタクルコネクタハウジングと嵌合する嵌合本体部と、この嵌合本体部の側壁に設けられた、前記側壁の外面に突設された係合部とを備え、前記レセプタクルコネクタハウジングは、壁部を有しこの壁部に沿って前記プラグコネクタハウジングの嵌合本体部が内側に嵌合し、嵌合時に前記係合部が移動可能となるように前記壁部にスリット部が形成された縦断面が凹状の嵌合部と、このスリット部が形成された壁部の外面側に設けられた、嵌合時に前記スリット部に挿入された前記係合部を嵌合方向に押圧して前記嵌合本体部を前記嵌合部に完全嵌合するためのレバー部とを備え、前記レバー部は、嵌合時に先端部が前記係合部と係合すると共に前記スリット部のスリット形状に沿って前記嵌合方向に移動可能な作用点となり且つ基端部が力点となるように、前記先端部及び基端部の間に前記壁部の外面に沿った方向に回転軸を形成する状態で回動可能であると共に前記壁部に対して直交する方向に前記回転軸を支点として移動可能な構造を備えて設けられていることを特徴とする。
【０００７】
この発明によれば、従来のレバー等の倍力機構の代わりに係合部をプラグコネクタハウジングに備えると共にこの係合部が移動するスリット部及び係合部を嵌合方向に押圧するレバー部をレセプタクルコネクタハウジングに備え、嵌合部の壁部の外面に沿った方向に回転軸を形成する状態で回動可能且つ壁部に対して直交する方向に回転軸を支点として移動可能なレバー部で係合部を嵌合方向に押し込むようにして両コネクタハウジングを嵌合する。このため、従来のレバー等の倍力機構に比べ、レバー部を動かすための余分なスペースなどを少なくすることができる。また、レバー部が係合部に対して、てこのような役割を果たすため、低い挿入力でハウジング同士を容易に嵌合することが可能となる。これにより、別途作製された別部品であり且つ大柄なレバー等で倍力機構を構成していた場合と比較して、少ないスペースでハウジング同士の嵌合を容易に行うことができる低挿入力コネクタを適度な大きさで構成し安価に製造することができるようになる。
【０００８】
なお、係合部は、嵌合方向に凹んだ形状の凹み部を有し、レバー部は、先端部が係合部の凹み部に嵌った状態で係合し回動するように、係合部が通る大きさの穴部を備えて構成されていることが好ましい。このようにすれば、スムーズにレバー部を動かして嵌合動作を行うことができるようになる。
【０００９】
また、この低挿入力コネクタにおいては、▲１▼レバー部が先端部及び基端部の間に、回転軸を形成する互いに反対方向に突出する複数の凸部を備え、嵌合部の壁部には、壁部の外面から壁部と直交する方向に突出する一対のリブが形成され、これらリブの対向端部には、複数の凸部がそれぞれ移動可能な状態で嵌合する壁部に対して直交する方向に溝状に延びる一対の凹部が形成されていること、又は▲２▼レバー部が先端部及び基端部の間に、回転軸を形成する互いに反対方向に突出する複数の凸部を備え、嵌合部の壁部には、壁部の外面から壁部と直交する方向に突出する一対のリブが形成され、これらリブの対向端部及び該対向端部と連続するスリット部の対向端部には、複数の凸部がそれぞれ移動可能な状態で嵌合する壁部に対して直交する方向に溝状に延びる一対の凹部が形成されていること、若しくは▲３▼レバー部が先端部及び基端部の間の先端部及び基端部を結ぶ方向と直交する方向の一対の端面に、レバー部の外形に沿って溝状に延びる一対の凹部を備え、嵌合部の壁部には、壁部の外面から壁部と直交する方向に突出する一対のリブが形成され、これらリブの対向端部には、レバー部の一対の凹部とそれぞれ嵌合する互いに対向する方向に突出する一対の凸部が形成されていることが好ましい。
【００１０】
更に、この低挿入力コネクタにおいては、▲４▼係合部が嵌合方向に凹んだ形状の複数の凹み部を有し、レバー部が係合部と係合する先端部と、壁部に回動及び移動可能な構造で枢支される基端部と、先端部及び基端部を繋ぐ繋ぎ部とから構成され、基端部は、回転軸を形成する互いに反対方向に突出する複数の凸部を備え、嵌合部の壁部には、壁部の外面から壁部と直交する方向に突出する一対のリブが形成され、これらリブの対向端部には、複数の凸部がそれぞれ移動可能な状態で嵌合する壁部に対して直交する方向に溝状に延びる一対の凹部が形成され、繋ぎ部は、先端部が係合部の複数の凹み部に嵌った状態で係合し回動するように、複数の凹み部間を通る形状で形成されていること、又は▲５▼係合部が嵌合方向に凹んだ形状の複数の凹み部を有し、レバー部が係合部と係合する先端部と、壁部に回動及び移動可能な構造で枢支される基端部と、先端部及び基端部を繋ぐ繋ぎ部とから構成され、基端部は、回転軸を形成する互いに反対方向に突出する複数の凸部を備え、嵌合部の壁部には、壁部の外面から壁部と直交する方向に突出する一対のリブが形成され、これらリブの対向端部及び該対向端部と連続するスリット部の対向端部には、複数の凸部がそれぞれ移動可能な状態で嵌合する壁部に対して直交する方向に溝状に延びる一対の凹部が形成され、繋ぎ部は、先端部が係合部の複数の凹み部に嵌った状態で係合し回動するように、複数の凹み部間を通る形状で形成されていること、若しくは、▲６▼係合部が嵌合方向に凹んだ形状の複数の凹み部を有し、レバー部が係合部と係合する先端部と、壁部に回動及び移動可能な構造で枢支される基端部と、先端部及び基端部を繋ぐ繋ぎ部とから構成され、基端部は、基端部の先端部及び基端部を結ぶ方向と直交する方向の一対の端面に、基端部の外形に沿って溝状に延びる一対の凹部を備え、嵌合部の壁部には、壁部の外面から壁部と直交する方向に突出する一対のリブが形成され、これらリブの対向端部には、基端部の一対の凹部とそれぞれ嵌合する互いに対向する方向に突出する一対の凸部が形成され、繋ぎ部は、先端部が係合部の複数の凹み部に嵌った状態で係合し回動するように、複数の凹み部間を通る形状で形成されていることが好ましい。
【００１１】
なお、係合部は、嵌合部の一対の対向する側壁にそれぞれ設けられ、スリット部及びレバー部は、嵌合部の一対の対向する壁部にそれぞれ設けられていても良い。このようにすれば、両コネクタハウジングの嵌合に際して複数のレバー部を同期させて嵌合動作を行うことができ、嵌合時のねじれやよじれの発生をより抑えることが期待できる。
【００１２】
更に、嵌合本体部の係合部が設けられた側壁には、側壁の外面に突設されレバー部の基端部と係合する係止突起が形成され、レバー部の基端部には、係止突起が挿入される係止穴が形成され、嵌合本体部及び嵌合部は、嵌合本体部及び嵌合部の完全嵌合時にこれら係止突起及び係止穴を係合することで、レバー部が嵌合部の壁部と一部同化したような状態、又はレバー部の長手方向が壁部の外面に沿った状態でその先端部が係合部と係合したまま完全嵌合されることが好ましい。
【００１３】
【発明の実施の形態】
以下、添付の図面を参照して、この発明の好ましい実施の形態を説明する。
図１は、この発明の一実施形態に係る低挿入力コネクタを示す外観斜視図、図２及び図３は、この低挿入力コネクタにおける嵌合動作を説明するための一部断面図である。
図１〜図３に示すように、低挿入力コネクタ１は、プラグコネクタハウジング１０と、レセプタクルコネクタハウジング２０とから構成されている。プラグコネクタハウジング１０は、側壁９ａ，９ｂを有しこの側壁９ａ，９ｂに沿ってレセプタクルコネクタハウジング２０と嵌合する嵌合本体部１１と、この嵌合本体部１１の両側壁９ａ，９ｂの外面側にそれぞれ突設された、側壁９ａ，９ｂの外面に沿って嵌合方向に凹んだ形状の凹み部３３を有する係合部３０と、同様に側壁９ａ，９ｂの外面側にそれぞれ突設された係止突起３９とから構成されている。このプラグコネクタハウジング１０には、例えば複数のレセプタクル接続端子４をプラグコネクタハウジング１０内に収容するための複数の端子収容孔１４が形成されている。また、プラグコネクタハウジング１０には、レセプタクルコネクタハウジング２０との完全嵌合時に両コネクタハウジング１０，２０を係止固定するためのロック機構を後述するロック凹部と共に構成するロック凸部１２を有する弾性係止片１３が形成されている。
【００１４】
一方、レセプタクルコネクタハウジング２０は、壁部８ａ，８ｂを有しこの壁部８ａ，８ｂに沿ってプラグコネクタハウジング１０の嵌合本体部１１が内側に嵌合し、嵌合時に係合部３０が嵌合方向に移動可能となるように壁部８ａ，８ｂにスリット部２２が形成された縦断面が凹状の嵌合部２１と、このスリット部２２が形成された壁部８ａ，８ｂの外面側にそれぞれ設けられた、嵌合時にスリット部２２に挿入された嵌合本体部１１の係合部３０を嵌合方向に押圧して嵌合本体部１１を嵌合部２１の内側に完全嵌合するためのレバー部４０とを備えて構成されている。このレセプタクルコネクタハウジング２０には、例えば複数のプラグ接続端子３をレセプタクルコネクタハウジング２０内に収容するための複数の端子収容孔２４が形成されている。また、レセプタクルコネクタハウジング２０には、プラグコネクタハウジング１０との完全嵌合時に両コネクタハウジング１０，２０を係止固定するためのロック機構を上記ロック凸部１２と共に構成するロック凹部２３が形成されている。
【００１５】
レバー部４０は、この例では嵌合時に先端部４１が係合部３０の凹み部３３に係合すると共に嵌合部２１のスリット部２２のスリット形状に沿って嵌合方向に移動可能な作用点となり且つ基端部４２が力点となるように、先端部４１と基端部４２との間に壁部８ａ，８ｂの外面に沿った方向に回転軸を形成する状態で回動可能であると共に壁部８ａ，８ｂに対して直交する方向に回転軸を支点として移動可能な構造の板状部材からなる。即ち、レバー部４０は、先端部４１が係合部３０の凹み部３３に嵌った状態で係合し回動するように、レバー部４０の厚さ方向に貫通した係合部３０が通る大きさの穴部４３と、先端部４１及び基端部４２の間に、回転軸を形成する互いに反対方向に突出する複数の凸部４４とを備えている。また、これら複数の凸部４４に対応して、嵌合部２１の壁部８ａ，８ｂには、壁部８ａ，８ｂの外面から壁部８ａ，８ｂと直交する方向に突出する一対のリブ５１，５２が形成され、これらリブ５１，５２の対向端部及びこの対向端部と連続するスリット部２２の対向端部には、複数の凸部４４がそれぞれ移動可能な状態で嵌合する壁部８ａ，８ｂに対して直交する方向に溝状に延びる一対の凹部４５が形成されている。このように、複数の凸部４４と一対の凹部４５とがそれぞれ嵌合することにより、レバー部４０は、嵌合部２１に回動及び移動可能な構造で備えられている。
【００１６】
なお、レバー部４０の基端部４２には、厚さ方向に貫通した係止穴３８が形成されており、両コネクタハウジング１０，２０の完全嵌合時にこの係止穴３８に嵌合本体部１１の側壁９ａ，９ｂに形成された係止突起３９が挿入されレバー部４０が嵌合部２１に係止される構造となっている。
【００１７】
このように構成された低挿入力コネクタ１における両コネクタハウジング１０，２０の嵌合動作は、図２及び図３に示すようにして行われる。まず、図２に示すように、プラグコネクタハウジング１０の嵌合本体部１１が、レセプタクルコネクタハウジング２０の嵌合部２１の内側に嵌ると共に、嵌合本体部１１の側壁９ａ，９ｂに形成された係合部３０がスリット部２２に挿入されるように、例えばプラグコネクタハウジング１０を図中矢印Ａ方向に動かしレセプタクルコネクタハウジング２０に近づける。すると、図３（ａ）に示すように、嵌合本体部１１が嵌合部２１の内側にいくらか嵌合され、プラグコネクタハウジング１０のレセプタクル接続端子４とレセプタクルコネクタハウジング２０のプラグ接続端子３とが僅かに嵌合した初期嵌合状態となる。このとき、スリット部２２に挿入された係合部３０の凹み部３３にレバー部４０の先端部４１が係止し、係合部３０がレバー部４０の穴部４３に嵌った状態で係合するように、レバー部４０の基端部４２側を図中矢印Ｂ方向に動かしてレバー部４０と係合部３０とを係合する。そのまま、レバー部４０の基端部４２側を図中矢印Ｂ方向に動かすと、レバー部４０全体が凸部４４を支点としてリブ５１，５２の凹部４５に沿ってスリット部２２に近づく方向に移動すると共に、てこの原理により先端部４１が係合部３０の凹み部３３を嵌合方向に押圧するため、嵌合本体部１１が嵌合部２１の内側に更に嵌合される。そして、同図（ｂ）に示すように、レセプタクル接続端子４とプラグ接続端子３とが完全に嵌合され、嵌合本体部１１が嵌合部２１の内側に完全嵌合し、両コネクタハウジング１０，２０が完全嵌合される。このとき、レバー部４０は、壁部８ａ，８ｂのスリット部２２に嵌り、一部が壁部８ａ，８ｂと同化したような状態となると共に、係止穴３８に嵌合本体部１１の係止突起３９が挿入されて係合するため、先端部４１が係合部３０とロックされ且つ基端部４２が嵌合本体部１１とロックされた状態となり、嵌合本体部１１と嵌合部２１との完全嵌合状態を保持する役割を果たす。
【００１８】
このように、この低挿入力コネクタ１によれば、嵌合部２１のスリット部２２に挿入された嵌合本体部１１の係合部３０を、レバー部４０を動かして嵌合方向に移動させるという簡単な動作で両コネクタハウジング１０，２０を完全嵌合することができる。また、レバー部４０の動作範囲は、従来のレバー等に比べると小さいので、結果的に動作スペースを小さくすることができると共にコネクタの大きさを小さくすることができる。
【００１９】
なお、この例の低挿入力コネクタ１では、レバー部４０に複数の凸部４４が形成され、嵌合部２１のリブ５１，５２及びスリット部２２の対向端部に凸部４４と嵌合する凹部４５が形成された場合について説明したが、例えば図４に示すように、レバー部４０の先端部４１及び基端部４２を結ぶ方向と直交する方向の一対の端面に、レバー部４０の外形に沿って溝状に延びる一対の凹部４５が形成され、リブ５１，５２の対向端部に、レバー部４０の凹部４５と嵌合する互いに対向する方向に突出する一対の凸部４４が形成されていても良い。この場合においても、レバー部４０の動作については、同様の効果を得ることができる。
【００２０】
図５は、この発明の他の実施形態に係る低挿入力コネクタを示す外観斜視図、図６は、この低挿入力コネクタにおける完全嵌合時の状態を説明するための一部断面図である。なお、以降において、既に説明した部分と重複する説明は割愛する。
図５に示すように、この低挿入力コネクタ１ａは、レセプタクルコネクタハウジング２０の壁部８ａ，８ｂに形成されたスリット部２２の短手方向スリット幅ｈが短く形成され、係合部３０がこのスリット部２２のスリット幅に合わせてａ方向の幅が短く且つ凹み部３３の凹み部分が広くなるようにｂ方向の幅が長く形成され、凹部４５がリブ５１，５２の対向端部のみに形成され、図６に示すように、両コネクタハウジング１０，２０の完全嵌合時にレバー部４０がスリット部２２に嵌らずにその長手方向が壁部８ａ，８ｂの外面に沿った状態で嵌合本体部１１と嵌合部２１との完全嵌合状態を保持する点が、先の例の低挿入力コネクタ１と相違している。この低挿入力コネクタ１ａにおいても、上記低挿入力コネクタ１と同様に、レバー部４０を動かすという簡単な動作で両コネクタハウジング１０，２０を完全嵌合することができる。
【００２１】
図７は、この発明の更に他の実施形態に係る低挿入力コネクタを示す外観斜視図である。
図７に示すように、この低挿入力コネクタ２は、係合部３０が複数の凹み部３３を有して構成され、レバー部４０が係合部３０と係合する先端部４１と、基端部４２と、先端部４１及び基端部４２を繋ぐ繋ぎ部４８とから構成され、この繋ぎ部４８が係合部３０の複数の凹み部３３間ｔを通る形状で形成され、更に基端部４２に複数の凸部４４が形成されて壁部８ａ，８ｂの外面側に備えられている点が、先の例の低挿入力コネクタ１と相違している。この低挿入力コネクタ２においても、上記低挿入力コネクタ１と同様に、レバー部４０を動かすという簡単な動作で両コネクタハウジング１０，２０を完全嵌合することが可能となる。
【００２２】
なお、上記例の低挿入力コネクタ１，１ａ，２においては、係合部３０、レバー部４０、スリット部２２及びリブ５１，５２が、嵌合本体部１１及び嵌合部２１の両側壁９ａ，９ｂと両壁部８ａ，８ｂとに形成されていたが、いずれか一方の対応する側壁９ａ（又は９ｂ）及び壁部８ａ（又は８ｂ）のみに形成されていても良い。
【００２３】
【発明の効果】
以上述べたように、この発明によれば、従来のレバー等の倍力機構の代わりに係合部をプラグコネクタハウジングに備えると共にこの係合部が移動するスリット部及び係合部を嵌合方向に押圧するレバー部をレセプタクルコネクタハウジングに備え、嵌合部の壁部の外面に沿った方向に回転軸を形成する状態で回動可能且つ壁部に対して直交する方向に回転軸を支点として移動可能なレバー部で係合部を嵌合方向に押し込むようにして両コネクタハウジングを嵌合する。このため、従来のレバー等の倍力機構に比べ、レバー部を動かすための余分なスペースなどを少なくすることができる。また、レバー部が係合部に対して、てこのような役割を果たすため、低い挿入力でハウジング同士を容易に嵌合することが可能となる。これにより、別途作製された別部品であり且つ大柄なレバー等で倍力機構を構成していた場合と比較して、少ないスペースでハウジング同士の嵌合を容易に行うことができる低挿入力コネクタを適度な大きさで構成し安価に製造することができるようになるという効果を奏する。
【図面の簡単な説明】
【図１】この発明の一実施形態に係る低挿入力コネクタを示す外観斜視図である。
【図２】同低挿入力コネクタにおける嵌合動作を説明するための一部断面図である。
【図３】同低挿入力コネクタにおける嵌合動作を説明するための一部断面図である。
【図４】同低挿入力コネクタにおけるレバー部及びリブの凸部と凹部との関係が異なる場合を説明するための外観斜視図である。
【図５】この発明の他の実施形態に係る低挿入力コネクタを示す外観斜視図である。
【図６】同低挿入力コネクタにおける完全嵌合時の状態を説明するための一部断面図である。
【図７】この発明の更に他の実施形態に係る低挿入力コネクタを示す外観斜視図である。
【図８】従来の低挿入力コネクタを示す外観斜視図である。
【符号の説明】１，１ａ，２…低挿入力コネクタ、３…プラグ接続端子、４…レセプタクル接続端子、８…壁部、９…側壁、１０…プラグコネクタハウジング、１１…嵌合本体部、１２…ロック凸部、１３…弾性係止片、１４，２４…端子収容孔、２０…レセプタクルコネクタハウジング、２１…嵌合部、２２…スリット部、２３…ロック凹部、３０…係合部、３３…凹み部、３８…係止穴、３９…係止突起、４０…レバー部、４１…先端部、４２…基端部、４３…穴部、４４…凸部、４５…凹部、５１，５２…リブ。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a low-insertion-force connector that allows a plug connector housing and a receptacle connector housing to be easily fitted to each other and detached from each other.
[0002]
[Prior art]
At present, with the rapid development of electronics, for example, the number of circuits (the number of electric wires) tends to increase year by year even in a wire harness mounted on an automobile. With the increase in the number of circuits, the number of connectors attached to the terminal portion of the wire harness has also been increased in number (increase in the number of built-in connection terminals), and a multi-pole connector as shown in FIG. 8 has been increasingly used. The multipolar connector 100 has a plug connector housing 110 in which a terminal receiving hole 101 for receiving a plurality of receptacle connection terminals (not shown) is formed, and the plug connector housing 110 is fitted inside. It comprises a receptacle connector housing 120 in which a terminal receiving hole (not shown) for receiving a plurality of plug connection terminals 102 is formed, and a lever 130 separately attached to the receptacle connector housing 120. If the number of connection terminals to be connected increases as in the multi-pole connector 100, the contact resistance between the plug connector housing 110 and the receptacle connector housing 120 at the time of fitting / detaching increases, so that the plug connector housing 110 and the receptacle connector housing 120 are inserted at the time of fitting. The force and the pull-out force during disengagement are also higher. Therefore, in order to suppress the insertion force and the withdrawal force, a boosting mechanism such as a lever 130 is provided. For example, a protrusion 111 is formed on the side surface of the plug connector housing 110, and the lever 111 is fitted with the protrusion 111 and A so-called lever-type connector in which a groove 121 for moving the projection 111 to the rear side of the receptacle connector housing 120 is formed, and by moving the lever 130, the two are fitted / removed using this principle. Are known (for example, see Patent Documents 1 and 2).
[0003]
[Patent Document 1]
Japanese Patent No. 2762897 (page 2-3, FIG. 1-5)
[Patent Document 2]
Japanese Patent No. 2956498 (page 3-5, FIG. 1-12)
[0004]
[Problems to be solved by the invention]
However, a booster mechanism such as the lever 130 provided in such a lever-type connector needs to secure a space for operating the booster mechanism, and also requires a booster mechanism to increase this action. (For example, the lever 130 is enlarged or the groove 121 is elongated), so that the lever-type connector itself tends to be large. Further, in the lever type connector, since the lever 130 must be manufactured as a separate component in addition to the plug connector housing 110 and the receptacle connector housing 120 and attached to the connector, manufacturing equipment such as a lever molding die is separately required, and the manufacturing is inexpensive. Is difficult to do.
[0005]
The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a low insertion force connector that can be manufactured at an appropriate size at low cost and that can be easily fitted. .
[0006]
[Means for Solving the Problems]
A low insertion force connector according to the present invention includes a plug connector housing and a receptacle connector housing fitted with the plug connector housing, wherein the plug connector housing has a side wall and the receptacle connector housing extends along the side wall. And a fitting body provided on a side wall of the fitting body, and an engaging portion protruding from an outer surface of the side wall.The receptacle connector housing has a wall. A longitudinal section in which a slit section is formed in the wall section so that the fitting body section of the plug connector housing fits inward along the wall section and the engaging section is movable at the time of fitting is concave. The fitting part and the engaging part, which is provided on the outer surface side of the wall part where the slit part is formed, is inserted in the slit part at the time of fitting and is pressed in the fitting direction to A lever part for completely fitting the fitting main body part to the fitting part, wherein the lever part engages with the engaging part at the time of fitting and follows the slit shape of the slit part. In a state where a rotation axis is formed in the direction along the outer surface of the wall portion between the distal end portion and the proximal end portion so as to be an action point movable in the fitting direction and the base end portion is a power point. It is characterized by being provided with a structure that is rotatable and movable about the rotation axis in a direction orthogonal to the wall.
[0007]
According to the present invention, instead of the conventional booster mechanism such as a lever or the like, an engaging portion is provided in the plug connector housing, and a slit portion in which the engaging portion moves and a lever portion for pressing the engaging portion in the fitting direction are provided. A lever portion provided on the receptacle connector housing, rotatable in a state of forming a rotation axis in a direction along the outer surface of the wall portion of the fitting portion, and movable with the rotation axis as a fulcrum in a direction perpendicular to the wall portion; The two connector housings are fitted together so that the engaging portions are pushed in the fitting direction. For this reason, an extra space for moving the lever portion can be reduced as compared with a conventional booster mechanism such as a lever. In addition, since the lever portion plays a leverage role with respect to the engagement portion, the housings can be easily fitted to each other with a low insertion force. As a result, a low insertion force connector that allows the housings to be easily fitted in a small space as compared with a case where the booster mechanism is constituted by a separately manufactured separate component and a large lever or the like. Can be configured in an appropriate size and can be manufactured at low cost.
[0008]
Note that the engaging portion has a concave portion that is concave in the fitting direction, and the lever portion is engaged so that the tip portion engages and rotates with the distal end portion fitted in the concave portion of the engaging portion. It is preferable to provide a hole having a size through which the portion passes. With this configuration, the fitting operation can be performed by smoothly moving the lever portion.
[0009]
Further, in this low insertion force connector, (1) the lever portion has a plurality of convex portions projecting in opposite directions to form a rotation axis between the distal end portion and the proximal end portion, and the wall portion of the fitting portion. A pair of ribs are formed projecting from the outer surface of the wall in a direction perpendicular to the wall, and a plurality of protrusions are respectively formed on opposite ends of the ribs in a movable state. A pair of recesses extending in a groove shape in a direction orthogonal to the direction are formed, or (2) a plurality of lever portions projecting in opposite directions to form a rotation axis between the distal end portion and the proximal end portion. A pair of ribs are provided on the wall of the fitting portion, the pair of ribs protruding from the outer surface of the wall in a direction perpendicular to the wall, and the opposite ends of these ribs and the slits continuous with the opposite end are provided. At the opposite end of the portion, a plurality of protrusions are respectively movable and fitted to the wall (3) a pair of recesses extending in a direction perpendicular to the groove, or (3) a pair of levers in a direction perpendicular to a direction connecting the distal end and the proximal end between the distal end and the proximal end. The end face includes a pair of recesses extending in a groove shape along the outer shape of the lever portion, and the wall portion of the fitting portion is formed with a pair of ribs protruding from the outer surface of the wall portion in a direction orthogonal to the wall portion, It is preferable that a pair of projections projecting in opposite directions to be fitted to the pair of recesses of the lever portion are formed at the opposite ends of the ribs.
[0010]
Furthermore, in this low insertion force connector, (4) the engaging portion has a plurality of concave portions that are concave in the fitting direction, and the lever portion engages with the engaging portion; It is composed of a base end pivotally supported by a rotatable and movable structure, and a connecting part connecting the front end and the base end, and the base end protrudes in opposite directions to form a rotation axis. A pair of ribs are provided on the wall of the fitting portion, the pair of ribs protruding from the outer surface of the wall in a direction orthogonal to the wall, and a plurality of protrusions are respectively formed at opposite ends of the ribs. A pair of recesses extending in a groove shape in a direction perpendicular to a wall portion to be fitted in a movable state are formed, and the connecting portion engages with a tip portion fitted in a plurality of concave portions of the engaging portion. And (5) a plurality of engagement portions that are recessed in the fitting direction. A concave portion having a concave portion, the distal end portion of which the lever portion engages with the engaging portion, a proximal end portion pivotally supported on the wall portion so as to be rotatable and movable, and a connection connecting the distal end portion and the proximal end portion. The base end is provided with a plurality of protrusions projecting in opposite directions to form a rotation axis, and the wall of the fitting portion has a direction perpendicular to the wall from the outer surface of the wall. A pair of protruding ribs are formed, and opposing ends of these ribs and an opposing end of a slit that is continuous with the opposing end are formed with respect to a wall in which a plurality of protrusions are fitted in a movable manner. A pair of recesses extending in a groove shape in a direction orthogonal to the connecting portion are formed, and the connecting portion is engaged with the plurality of recesses of the engaging portion so as to be engaged with the plurality of recesses of the engaging portion and rotated. Or (6) the engaging portion has a plurality of concave portions that are concave in the fitting direction, and the lever portion It is composed of a distal end engaged with the engaging portion, a proximal end pivotally supported on the wall by a structure capable of rotating and moving, and a connecting portion connecting the distal end and the proximal end. A pair of end surfaces in a direction perpendicular to a direction connecting the distal end portion and the proximal end portion of the proximal end portion, a pair of concave portions extending in a groove shape along the outer shape of the proximal end portion, and a wall portion of the fitting portion A pair of ribs are formed projecting from the outer surface of the wall in a direction perpendicular to the wall, and the opposite ends of the ribs project in opposite directions to be fitted with the pair of recesses of the base end. A pair of convex portions are formed, and the connecting portion is formed in a shape passing between the plurality of concave portions so that the distal end portion engages and rotates while being fitted in the plurality of concave portions of the engaging portion. Is preferred.
[0011]
The engaging portion may be provided on each of a pair of opposed side walls of the fitting portion, and the slit portion and the lever portion may be provided on each of the pair of opposed wall portions of the fitting portion. With this configuration, the fitting operation can be performed by synchronizing the plurality of lever portions when the two connector housings are fitted, and it is expected that the occurrence of twisting and twisting at the time of fitting can be further suppressed.
[0012]
Further, a locking projection is formed on the side wall of the fitting main body portion where the engaging portion is provided to protrude from an outer surface of the side wall and engages with a base end portion of the lever portion. A locking hole into which the locking protrusion is inserted is formed, and the fitting body and the fitting portion engage with the locking protrusion and the locking hole when the fitting body and the fitting portion are completely fitted. By this, the lever part is completely assimilated with the wall part of the fitting part, or the lever part is completely engaged with the engaging part with the tip part engaged with the engaging part in the longitudinal direction along the outer surface of the wall part. Preferably they are fitted.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is an external perspective view showing a low insertion force connector according to an embodiment of the present invention, and FIGS. 2 and 3 are partial cross-sectional views for explaining a fitting operation in the low insertion force connector.
As shown in FIGS. 1 to 3, the low insertion force connector 1 includes a plug connector housing 10 and a receptacle connector housing 20. The plug connector housing 10 has side walls 9a and 9b, and has a fitting body 11 fitted to the receptacle connector housing 20 along the side walls 9a and 9b, and outer surfaces of both side walls 9a and 9b of the fitting body 11. The engaging portion 30 has a concave portion 33 which is formed in the fitting direction along the outer surfaces of the side walls 9a and 9b, and similarly protrudes from the outer surfaces of the side walls 9a and 9b. And a locking projection 39. In the plug connector housing 10, for example, a plurality of terminal receiving holes 14 for receiving a plurality of receptacle connection terminals 4 in the plug connector housing 10 are formed. Further, the plug connector housing 10 has an elastic projection 12 having a locking mechanism 12 for locking and fixing the two connector housings 10 and 20 together with a locking recess described later when the connector connector housing 20 is completely fitted. A stop piece 13 is formed.
[0014]
On the other hand, the receptacle connector housing 20 has walls 8a and 8b, and the fitting main body 11 of the plug connector housing 10 fits inside along the walls 8a and 8b, and the engaging portion 30 is fitted at the time of fitting. A fitting portion 21 having a concave longitudinal section in which a slit portion 22 is formed in the wall portions 8a and 8b so as to be movable in the fitting direction, and an outer surface side of the wall portions 8a and 8b in which the slit portion 22 is formed The engaging body 30 of the fitting body 11 inserted into the slit part 22 at the time of fitting is pressed in the fitting direction to completely fit the fitting body 11 inside the fitting part 21. And a lever portion 40 for performing the operation. In the receptacle connector housing 20, for example, a plurality of terminal receiving holes 24 for receiving a plurality of plug connection terminals 3 in the receptacle connector housing 20 are formed. In addition, the receptacle connector housing 20 has a lock recess 23 which forms a lock mechanism for locking and fixing the connector housings 10 and 20 together with the lock projection 12 when the plug connector housing 10 is completely fitted. I have.
[0015]
In this example, the lever portion 40 has an operation in which the distal end portion 41 is engaged with the concave portion 33 of the engaging portion 30 at the time of fitting, and is movable in the fitting direction along the slit shape of the slit portion 22 of the fitting portion 21. It is rotatable in a state in which a rotation axis is formed between the distal end portion 41 and the proximal end portion 42 in a direction along the outer surfaces of the wall portions 8a and 8b so that the point and the proximal end portion 42 become a power point. And a plate-like member having a structure movable about a rotation axis in a direction orthogonal to the walls 8a and 8b. That is, the lever portion 40 is large enough for the engaging portion 30 penetrating in the thickness direction of the lever portion 40 to pass therethrough such that the tip portion 41 is engaged with the concave portion 33 of the engaging portion 30 and rotates. And a plurality of convex portions 44 projecting in opposite directions forming a rotation axis between the distal end portion 41 and the proximal end portion 42. Corresponding to the plurality of projections 44, a pair of ribs 51 projecting from the outer surfaces of the walls 8a, 8b in a direction orthogonal to the walls 8a, 8b are provided on the walls 8a, 8b of the fitting portion 21. , 52 are formed, and a plurality of protrusions 44 are respectively fitted to the opposing ends of the ribs 51 and 52 and the opposing end of the slit 22 continuous with the opposing ends. A pair of concave portions 45 extending in a groove shape in a direction orthogonal to 8a and 8b are formed. As described above, the lever portion 40 is provided in the fitting portion 21 with a structure capable of rotating and moving by fitting the plurality of convex portions 44 and the pair of concave portions 45 respectively.
[0016]
A locking hole 38 penetrating in the thickness direction is formed in the base end portion 42 of the lever portion 40. When the connector housings 10 and 20 are completely fitted, the fitting body portion is fitted into the locking hole 38. The locking projections 39 formed on the side walls 9a and 9b of the eleventh portion 11 are inserted, and the lever portion 40 is locked by the fitting portion 21.
[0017]
The fitting operation of the two connector housings 10 and 20 in the low insertion force connector 1 configured as described above is performed as shown in FIGS. First, as shown in FIG. 2, the fitting main body 11 of the plug connector housing 10 fits inside the fitting part 21 of the receptacle connector housing 20, and is formed on the side walls 9a, 9b of the fitting main body 11. For example, the plug connector housing 10 is moved in the direction of arrow A in the drawing so that the engagement portion 30 is inserted into the slit portion 22, and is brought closer to the receptacle connector housing 20. Then, as shown in FIG. 3 (a), the fitting main body 11 is somewhat fitted inside the fitting portion 21, and the receptacle connection terminal 4 of the plug connector housing 10 and the plug connection terminal 3 of the receptacle connector housing 20 are connected to each other. Are in an initial fitting state where they are slightly fitted. At this time, the distal end portion 41 of the lever portion 40 is engaged with the concave portion 33 of the engaging portion 30 inserted into the slit portion 22, and the engaging portion 30 is engaged with the hole portion 43 of the lever portion 40. The lever portion 40 and the engagement portion 30 are engaged by moving the base end 42 side of the lever portion 40 in the direction of arrow B in the drawing. When the base end portion 42 of the lever portion 40 is moved in the direction of arrow B in the drawing, the entire lever portion 40 moves in the direction approaching the slit portion 22 along the concave portion 45 of the ribs 51 and 52 with the convex portion 44 as a fulcrum. At the same time, since the distal end portion 41 presses the concave portion 33 of the engaging portion 30 in the fitting direction according to the leverage principle, the fitting main body portion 11 is further fitted inside the fitting portion 21. Then, as shown in FIG. 2B, the receptacle connection terminal 4 and the plug connection terminal 3 are completely fitted, the fitting body 11 is completely fitted inside the fitting portion 21, and both connector housings are provided. 10, 20 are completely fitted. At this time, the lever portion 40 is fitted into the slit portion 22 of the wall portions 8a and 8b, and a part of the lever portion 40 is assimilated with the wall portions 8a and 8b. Since the stop projection 39 is inserted and engaged, the distal end portion 41 is locked with the engaging portion 30 and the base end portion 42 is locked with the fitting main body portion 11. It plays a role of maintaining a completely fitted state with the first member 21.
[0018]
As described above, according to the low insertion force connector 1, the engaging portion 30 of the fitting main body 11 inserted into the slit portion 22 of the fitting portion 21 is moved in the fitting direction by moving the lever portion 40. With this simple operation, both connector housings 10 and 20 can be completely fitted. Further, since the operating range of the lever portion 40 is smaller than that of a conventional lever or the like, as a result, the operating space can be reduced and the size of the connector can be reduced.
[0019]
In the low insertion force connector 1 of this example, a plurality of convex portions 44 are formed on the lever portion 40, and the convex portions 44 are fitted to the ribs 51, 52 of the fitting portion 21 and the opposing ends of the slit portion 22. The case where the concave portion 45 is formed has been described. For example, as shown in FIG. 4, the outer shape of the lever portion 40 is provided on a pair of end surfaces in a direction orthogonal to the direction connecting the distal end portion 41 and the base end portion 42 of the lever portion 40. A pair of concave portions 45 extending in the shape of a groove is formed, and a pair of convex portions 44 projecting in opposite directions to be fitted with the concave portions 45 of the lever portion 40 are formed at opposing end portions of the ribs 51 and 52. May be. Also in this case, the same effect can be obtained for the operation of the lever section 40.
[0020]
FIG. 5 is an external perspective view showing a low insertion force connector according to another embodiment of the present invention, and FIG. 6 is a partial cross-sectional view for explaining a state when the low insertion force connector is completely fitted. . Note that, in the following, description that is the same as that already described is omitted.
As shown in FIG. 5, in this low insertion force connector 1a, the slit portion 22 formed in the wall portions 8a and 8b of the receptacle connector housing 20 has a short slit width h in the short direction, and the engagement portion 30 The width in the b direction is formed so that the width in the a direction is short according to the slit width of the slit portion 22 and the width of the concave portion 33 is widened, and the concave portion 45 is formed only at the opposing end portions of the ribs 51 and 52. As shown in FIG. 6, when the two connector housings 10 and 20 are completely fitted, the lever portion 40 does not fit in the slit portion 22 and the longitudinal direction thereof is fitted along the outer surfaces of the wall portions 8a and 8b. The point that the completely fitted state of the main body 11 and the fitting part 21 is maintained is different from the low insertion force connector 1 of the previous example. Also in the low insertion force connector 1a, the two connector housings 10, 20 can be completely fitted by a simple operation of moving the lever portion 40, similarly to the low insertion force connector 1.
[0021]
FIG. 7 is an external perspective view showing a low insertion force connector according to still another embodiment of the present invention.
As shown in FIG. 7, the low insertion force connector 2 is configured such that the engaging portion 30 has a plurality of concave portions 33, and a distal end portion 41 in which the lever portion 40 engages with the engaging portion 30, and a base portion 41. An end portion 42 and a connecting portion 48 connecting the distal end portion 41 and the base end portion 42 are formed. The connecting portion 48 is formed in a shape passing between the plurality of concave portions 33 of the engaging portion 30 and further has a base end. The point that a plurality of convex portions 44 are formed on the portion 42 and provided on the outer surface side of the wall portions 8a and 8b is different from the low insertion force connector 1 of the previous example. Also in this low insertion force connector 2, the two connector housings 10, 20 can be completely fitted by a simple operation of moving the lever portion 40, similarly to the low insertion force connector 1.
[0022]
In the low insertion force connectors 1, 1 a, and 2 of the above example, the engagement portion 30, the lever portion 40, the slit portion 22, and the ribs 51 and 52 are formed by the fitting body 11 and the side walls 9 a of the fitting portion 21. , 9b and both wall portions 8a, 8b, but may be formed only on one corresponding side wall 9a (or 9b) and wall portion 8a (or 8b).
[0023]
【The invention's effect】
As described above, according to the present invention, an engaging portion is provided in the plug connector housing in place of a conventional booster mechanism such as a lever, and the slit portion and the engaging portion in which the engaging portion moves are arranged in the fitting direction. The receptacle connector housing is provided with a lever portion that presses the rotating shaft in a direction along the outer surface of the wall portion of the fitting portion so as to be rotatable in a state of forming a rotating shaft and using the rotating shaft as a fulcrum in a direction perpendicular to the wall portion. The two connector housings are fitted together such that the movable portion pushes the engaging portion in the fitting direction. For this reason, an extra space for moving the lever portion can be reduced as compared with a conventional booster mechanism such as a lever. In addition, since the lever portion plays a leverage role with respect to the engagement portion, the housings can be easily fitted to each other with a low insertion force. As a result, a low insertion force connector that allows the housings to be easily fitted in a small space as compared with a case where the booster mechanism is constituted by a separately manufactured separate component and a large lever or the like. Is formed in an appropriate size, and it can be manufactured at low cost.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing a low insertion force connector according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional view for explaining a fitting operation in the low insertion force connector.
FIG. 3 is a partial cross-sectional view for explaining a fitting operation in the low insertion force connector.
FIG. 4 is an external perspective view for explaining a case in which the relationship between the protrusion and the recess of the lever and the rib in the low insertion force connector is different.
FIG. 5 is an external perspective view showing a low insertion force connector according to another embodiment of the present invention.
FIG. 6 is a partial cross-sectional view for explaining a state of the low insertion force connector when completely fitted.
FIG. 7 is an external perspective view showing a low insertion force connector according to still another embodiment of the present invention.
FIG. 8 is an external perspective view showing a conventional low insertion force connector.
DESCRIPTION OF SYMBOLS 1, 1a, 2 ... low insertion force connector, 3 ... plug connection terminal, 4 ... receptacle connection terminal, 8 ... wall, 9 ... side wall, 10 ... plug connector housing, 11 ... fitting main body, DESCRIPTION OF SYMBOLS 12 ... Lock convex part, 13 ... Elastic locking piece, 14, 24 ... Terminal receiving hole, 20 ... Receptacle connector housing, 21 ... Fitting part, 22 ... Slit part, 23 ... Lock concave part, 30 ... Engaging part, 33 ... recess, 38 ... locking hole, 39 ... locking projection, 40 ... lever, 41 ... tip, 42 ... base end, 43 ... hole, 44 ... convex, 45 ... concave, 51, 52 ... rib.

Claims

Plug connector housing,
Having a receptacle connector housing fitted with the plug connector housing,
The plug connector housing,
A fitting body that has a side wall and is fitted along the side wall with the receptacle connector housing; and an engaging portion provided on a side wall of the fitting body and protruding from an outer surface of the side wall. ,
The receptacle connector housing includes:
A slit portion is formed in the wall portion so that the fitting body portion of the plug connector housing fits inward along the wall portion and the engaging portion is movable at the time of fitting. The vertical cross section has a concave fitting portion, and the engaging portion inserted into the slit portion at the time of fitting is provided in the outer surface side of the wall portion where the slit portion is formed. A lever portion for completely fitting the fitting main body portion to the fitting portion,
The lever portion is configured such that a distal end portion engages with the engaging portion at the time of fitting and becomes an operation point movable in the fitting direction along the slit shape of the slit portion, and a base end portion becomes a power point. , While being rotatable in a state of forming a rotation axis in a direction along the outer surface of the wall portion between the distal end portion and the base end portion, and using the rotation axis as a fulcrum in a direction orthogonal to the wall portion. A low insertion force connector provided with a movable structure.

The engaging portion has a concave portion having a shape depressed in the fitting direction, and the lever portion engages and rotates with the distal end portion fitted in the concave portion of the engaging portion. 2. The low insertion force connector according to claim 1, further comprising a hole having a size through which the engaging portion passes.

The lever portion, between the distal end portion and the proximal end portion, includes a plurality of convex portions projecting in opposite directions forming the rotation axis,
On the wall portion of the fitting portion, a pair of ribs is formed which protrude from an outer surface of the wall portion in a direction orthogonal to the wall portion,
A pair of recesses extending in a groove shape in a direction perpendicular to the wall portion in which the plurality of protrusions are movably fitted are formed at opposed ends of the ribs. The low insertion force connector according to claim 1 or 2, wherein

The lever portion, between the distal end portion and the proximal end portion, includes a plurality of convex portions projecting in opposite directions forming the rotation axis,
On the wall portion of the fitting portion, a pair of ribs is formed which protrude from an outer surface of the wall portion in a direction orthogonal to the wall portion,
Opposite ends of these ribs and opposing ends of the slits that are continuous with the opposing ends have grooves in a direction perpendicular to the wall in which the plurality of protrusions are fitted in a movable manner. The low insertion force connector according to claim 1 or 2, wherein a pair of recesses extending in a shape are formed.

The lever portion has a pair of concave portions extending in a groove shape along the outer shape of the lever portion on a pair of end surfaces in a direction orthogonal to a direction connecting the distal end portion and the proximal end portion between the distal end portion and the proximal end portion. With
On the wall portion of the fitting portion, a pair of ribs is formed which protrude from an outer surface of the wall portion in a direction orthogonal to the wall portion,
3. The low end according to claim 1, wherein a pair of projections protruding in opposite directions to be fitted to the pair of recesses of the lever portion are formed at opposed ends of the ribs. Insertion force connector.

The engaging portion has a plurality of concave portions that are concave in the fitting direction,
The lever portion includes a distal end portion that engages with the engaging portion, a base end portion that is pivotally supported on the wall portion by a structure that can rotate and move, and a connecting portion that connects the distal end portion and the base end portion. Consisting of
The base end includes a plurality of protrusions projecting in opposite directions to form the rotation axis,
On the wall portion of the fitting portion, a pair of ribs is formed which protrude from an outer surface of the wall portion in a direction orthogonal to the wall portion,
At the opposite ends of these ribs, a pair of recesses extending in a groove shape in a direction perpendicular to the wall portion in which the plurality of projections are movably fitted are formed,
The connecting portion is formed in a shape passing between the plurality of concave portions so that the distal end portion engages and rotates in a state where the distal end portion is fitted in the plurality of concave portions of the engaging portion. The low insertion force connector according to claim 1.

The engaging portion has a plurality of concave portions that are concave in the fitting direction,
The lever portion includes a distal end portion that engages with the engaging portion, a base end portion that is pivotally supported on the wall portion by a structure that can rotate and move, and a connecting portion that connects the distal end portion and the base end portion. Consisting of
The base end includes a plurality of protrusions projecting in opposite directions to form the rotation axis,
On the wall portion of the fitting portion, a pair of ribs is formed which protrude from an outer surface of the wall portion in a direction orthogonal to the wall portion,
Opposite ends of these ribs and opposing ends of the slits that are continuous with the opposing ends have grooves in a direction perpendicular to the wall in which the plurality of protrusions are fitted in a movable manner. A pair of recesses extending in a shape are formed,
The connecting portion is formed in a shape passing between the plurality of concave portions so that the distal end portion engages and rotates in a state where the distal end portion is fitted in the plurality of concave portions of the engaging portion. The low insertion force connector according to claim 1.

The engaging portion has a plurality of concave portions that are concave in the fitting direction,
The lever portion includes a distal end portion that engages with the engaging portion, a base end portion that is pivotally supported on the wall portion by a structure that can rotate and move, and a connecting portion that connects the distal end portion and the base end portion. Consisting of
The base end includes a pair of recesses extending in a groove shape along the outer shape of the base end, on a pair of end surfaces in a direction orthogonal to a direction connecting the front end and the base end of the base end,
On the wall portion of the fitting portion, a pair of ribs is formed which protrude from an outer surface of the wall portion in a direction orthogonal to the wall portion,
At the opposing ends of these ribs are formed a pair of projections projecting in opposite directions to be fitted with the pair of recesses of the base end, respectively.
The connecting portion is formed in a shape passing between the plurality of concave portions so that the distal end portion engages and rotates in a state where the distal end portion is fitted in the plurality of concave portions of the engaging portion. The low insertion force connector according to claim 1.

The engagement portion is provided on each of a pair of opposed side walls of the fitting portion,
The low insertion force connector according to any one of claims 1 to 8, wherein the slit portion and the lever portion are respectively provided on a pair of opposed wall portions of the fitting portion.

On the side wall provided with the engaging portion of the fitting main body portion, a locking projection projecting from the outer surface of the side wall and engaging with the base end portion of the lever portion is formed,
A locking hole into which the locking protrusion is inserted is formed at a base end of the lever portion,
The fitting main body and the fitting portion engage with the locking projection and the locking hole when the fitting main body and the fitting portion are completely fitted, so that the lever portion is formed on the wall of the fitting portion. In a state where the lever part is partially assimilated, or in a state where the longitudinal direction of the lever part is along the outer surface of the wall part, the tip part is completely fitted while being engaged with the engaging part. The low insertion force connector according to claim 1.