JP2004014426A - Connector - Google Patents

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Publication number
JP2004014426A
JP2004014426A JP2002169595A JP2002169595A JP2004014426A JP 2004014426 A JP2004014426 A JP 2004014426A JP 2002169595 A JP2002169595 A JP 2002169595A JP 2002169595 A JP2002169595 A JP 2002169595A JP 2004014426 A JP2004014426 A JP 2004014426A
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JP
Japan
Prior art keywords
housings
lock arm
insertion passage
fitting
bracket
Prior art date
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JP2002169595A
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Japanese (ja)
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JP3928491B2 (en
Inventor
Yasushi Okayasu
岡安 恭志
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2002169595A priority Critical patent/JP3928491B2/en
Publication of JP2004014426A publication Critical patent/JP2004014426A/en
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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate looseness in the fitting direction of male and female housings throughout the whole circumferences thereof. <P>SOLUTION: An insertion passage 66 of a bracket 60 is formed in a mounting part 65 of the female housing 30 in a direction crossing the fitting direction of both the housings 10 and 30; a detection part 78 coming across the insertion passage 66 is formed in the male housing 10; and another lock means 80 is formed. When locked by a lock arm 43, the lock arm 43 is tightly fitted to a lock part 23 while both the housings 10 and 30 are separated from each other by restoring elastic force of a flange 58 of a seal ring 55. The bracket 60 is inserted in a state where the detection part 78 perfectly comes across the insertion passage 66, and when it is locked to the rear surface of the detection part 78, the distance between fitting end faces 20 and 40 of both the housings 10 and 30 on the lower surface side is kept nearly equal to that on the upper surface side. The elastic constriction amount of the flange 58 is nearly equalized, so that looseness along the fitting direction of both the housings 10 and 30 are prevented throughout the whole circumferences thereof. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、端子金具間の微摺動摩耗を防ぐ手段を講じたコネクタに関する。
【0002】
【従来の技術】
コネクタの一般的な構造は、それぞれに端子金具が装着された雌雄一対のハウジングを備え、そのうちの一方に、被係止部を有するロックアームが弾性的な傾動可能に設けられており、このロックアームを傾動させつつ両ハウジングが嵌合され、雌雄の端子金具同士が正規に接続される所定量嵌合されると、ロックアームが復動してその被係止部が相手のハウジングに設けられた係止部に係止され、これにより嵌合状態に保持されるようになっている。
【0003】
ところで上記のように、ロック機構として傾動するロックアームを備えたものでは、相手の係止部に乗り降りすべくその傾動を許容するためには、ロックアームの被係止部と相手の係止部との間にある程度のクリアランスを設定せざるを得ない。そうすると、外部から振動等を受けやすい箇所に設置された場合には両ハウジングが嵌合方向にがたついて、雌雄の端子金具の接点部同士が微摺動を繰り返し、接点部が次第に摩耗して接触圧が低下する等の弊害を生むという問題がある。
【0004】
そこで従来、上記のような端子金具間の微摺動摩耗を防ぐべく雌雄のハウジング間でのがたつきを無くす手段として、図20に示すものが提案されている。これは、雌ハウジング1の端子収容部2の外周と、雄ハウジング3のフード部4の内周との間に装着された防水用のシールリング5を利用している。より具体的には、シールリング5の後端外周にフランジ5Aを設けて、フード部4の先端と、それと対向した雌ハウジング1の突当壁6の間に臨ませ、両ハウジング1,3の嵌合の終盤では、シールリング5のフランジ5Aをフード部4と突当壁6との間で弾縮するようにし、その復元弾力により両ハウジング1,3を離反する方向に付勢して、ロックアーム7の被係止部7Aに係止部8を密着させ、もって雌雄のハウジング1,3の嵌合方向のがたつきを無くすことを意図している。
なお、この種の対策を講じたコネクタは、実用新案登録第2542639号に開示されている。
【0005】
【発明が解決しようとする課題】
しかるに上記のようなコネクタでは、両ハウジング1,3がフランジ5Aの復元弾力で離反した場合に、ロックアーム7を設けた上面側では係止部8と密着してそれ以上の離反が規制されるが、下面側ではそのような規制がないことから、図20の矢線xに示すように、下面側が開いたような状態となる場合があり得る(上面側の隙間S1<下面側の隙間S2)。言い換えると、下面側ではフランジ5Aが弾縮されないか、されても僅かに限られた状態となり、したがって下面側では両ハウジング1,3が嵌合方向にがたつく余地が残る。その結果、特に下段側の雌雄の端子金具f,mの間では依然として微摺動摩耗が生じるおそれがあった。
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、その目的は、周方向の広い領域にわたって雄雌のハウジングの嵌合方向のがたつきを無くすところにある。
【0006】
【課題を解決するための手段】
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、それぞれに端子金具が装着された一対のハウジングのうちのいずれか一方には、ロックアームが弾性的な傾動可能に設けられ、両ハウジングはロックアームを傾動させつつ嵌合されて、所定量嵌合すると前記ロックアームが復動して他方のハウジングに設けられた係止部に係止するとともに、前記両ハウジングの嵌合周面の間にはシールリングが装着されて、このシールリングの外周には、前記両ハウジングが所定量嵌合された場合に、両ハウジングの嵌合方向の対向面の間で挟持可能なフランジが張り出し形成され、このフランジの復元弾力により前記両ハウジングを離反させつつ前記ロックアームと係止部とを密着させるようにしたコネクタにおいて、前記ロックアームを設けた側とは周方向の反対側の位置には、前記ロックアームと係止部とが密着するまで両ハウジングが離反した状態において、前記反対側の位置における両ハウジングの嵌合端面同士の間隔を、前記ロックアームを設けた側の前記嵌合端面同士の間隔にほぼ等しい状態に保持して両ハウジング間をロック可能な別のロック手段が設けられている構成としたところに特徴を有する。
【0007】
請求項2の発明は、請求項1に記載のものにおいて、いずれか一方のハウジングにおける前記ロックアームを設けた側とは周方向の反対側の外面には、相手部材に取り付けるためのブラケットを両ハウジングの嵌合方向と交差する方向に挿通可能な挿通路が設けられるとともに、他方のハウジングには、前記両ハウジングの嵌合に伴い前記挿通路を横切って移動可能な検知部が設けられることで前記別のロック手段が形成されており、前記ロックアームと係止部とが密着するまで両ハウジングが離反した状態において、前記挿通路を設けた側における両ハウジングの嵌合端面同士の間隔が、前記ロックアームを設けた側の前記嵌合端面同士の間隔にほぼ等しくなって初めて、前記検知部が前記挿通路を横切って通過するように設定され、この挿通路に挿通されたブラケットが前記検知部の移動方向の後面に抜け止め状に係止する構成となっているところに特徴を有する。
請求項3の発明は、請求項2に記載のものにおいて、前記検知部と前記ブラケットとの間には、前記検知部が前記挿通路を通過する手前に留まっていた場合に、前記ブラケットの挿入に伴い前記検知部を通過位置まで移動させるカム手段が形成されているところに特徴を有する。
【0008】
【発明の作用及び効果】
<請求項1の発明>
一対のハウジングが嵌合されてロックアームによりロックされたら、シールリングのフランジの復元弾力を受けて両ハウジングが離反しつつロックアームと係止部とが密着される。引き続いて、ロックアームを設けた側と周方向の反対側の位置で別のロック手段により両ハウジング間をロックすると、両ハウジングは、嵌合端面同士の間隔が周方向の広範囲にわたってほぼ等しくなる嵌合状態に保持される。言い換えると、フランジが周方向の広範囲にわたってほぼ均一の弾縮量で挟圧された状態に保持されるから、両ハウジングの嵌合方向に沿ったがたつきが全周にわたって阻止され、全端子金具の対について微摺動摩耗が生じることが防止される。
【0009】
<請求項2の発明>
ロックアームによるロックが掛かり、フランジの復元弾力で両ハウジングが離反しつつロックアームと係止部とが密着された状態において、ロックアームが設けられた側と周方向の反対側で両ハウジングの嵌合端面間が開いていると、検知部が挿通路を横切って完全に通過することなくその途中に留まる。この状態では、挿通路にブラケットを挿通した場合に、検知部に当たってそれ以上の挿通が規制され、これを以てロックアームが設けられた側と反対側で開いていることが検知される。
そうしたら、ロックアームが設けられた側と反対側をさらに嵌合すると、検知部が挿通路を完全に横切って通過するから、ブラケットが挿通路に挿通でき、検知部の後面に係止することで抜け止めされる。これにより両ハウジングは、嵌合端面同士の間隔が周方向の広範囲にわたってほぼ等しい嵌合状態に保持され、フランジの弾縮量がほぼ均一となることで、両ハウジングの嵌合方向に沿ったがたつきを全周にわたって阻止することができる。
【0010】
<請求項3の発明>
ロックアームが設けられた側と反対側で両ハウジングの嵌合端面間が開いていると、検知部が挿通路を通過することなく手前に留まる。この状態で挿通路にブラケットが挿通されると、検知部との間のカム手段を介して検知部が強制的に挿通路を通過する位置まで移動させられ、それに伴って両ハウジングが互いに引き寄せられる。
反対側で両ハウジングの嵌合端面間が開いていた場合に、それが自動的に補正されて保持される。
【0011】
【発明の実施の形態】
以下、本発明の実施形態を添付図面に基づいて説明する。
<第1実施形態>
本発明の第1実施形態を図1ないし図18によって説明する。
この実施形態のコネクタはハイブリッド形式の防水コネクタであって、図1に示すように、互いに嵌合可能な雄ハウジング10と、雌ハウジング30とを備えている。以下では、それぞれのハウジング10,30において、嵌合端側を前方として説明する。
【0012】
雄ハウジング10は、図2ないし図4にも示すように、端子収容部11と、この端子収容部11の前半部分の回りからその前方を覆うやや横長の小フード部12とを設けた形状であって、端子収容部11内には、その上段側に図示4個の小キャビティ13Sが、下段側に図示2個の大キャビティ13Lがそれぞれ横に並んで形成されている。
小キャビティ13Sと大キャビティ13Lとには、それぞれ小型の雄端子14Sと大型の雄端子14Lとがそれぞれ後方から挿入され、ランス15により一次係止されるとともに、各キャビティ13S,13Lの入口が防水ゴム栓16により塞がれるようになっている。
【0013】
端子収容部11の前面には前壁を兼ねたフロント形式のリテーナ18が装着され、図1に示すように、両雄端子14S,14Lは、それぞれのタブをリテーナ18の表面から小フード部12内に突出させた状態で二重係止されて収容されている。このリテーナ18の表面が、雄ハウジング10側の嵌合端面20となる。嵌合端面20には、小フード部12内を左右に仕切るようにしてガイド板21が突設されている。
小フード部12の上面には、幅方向の中央において、前後方向を向いた一対のガイド壁22が形成され、両ガイド壁22の間の前端に寄った位置に係止部23が突設されている。係止部23の前面はテーパ状のガイド面24とされ、後面がほぼ直角に切り立った係止面25とされている。
【0014】
次に、雌ハウジング30側を説明する。雌ハウジング30は、図5ないし図8にも示すように、上記した雄ハウジング10の小フード部12の内周に所定のクリアランスを持って嵌合される端子収容部31を有し、この端子収容部31の前半部分の回りからその少し前方にわたって、小フード部12の外側にほぼ緊密に嵌合される大フード部32が形成されている。
端子収容部31内には、同じように上段側に図示4個の小キャビティ33Sが、下段側に図示2個の大キャビティ33Lがそれぞれ横に並んで形成されており、小キャビティ33Sと大キャビティ33Lとには、それぞれ小型の雌端子34Sと大型の雌端子34Lとがそれぞれ後方から挿入され、ランス35により一次係止されるとともに、各キャビティ33S,33Lの入口が防水ゴム栓36により塞がれるようになっている。
【0015】
端子収容部31の回りには、大フード部32の奥壁32Aの直前位置において、ゴム等の弾性材からなるシールリング55が装着されるようになっている。このシールリング55は、図9及び図10にも示すように、端子収容部31の外周と、小フード部12の先端側の内周との間で弾縮されてシールすべくやや横長の方形の環状に形成され、その外周には図示2条のリップ56が全周にわたって形成されている。
このシールリング55の後端(図10の右側)の外周における四つ角には、それぞれフランジ58が一体形成され、このフランジ58は、図5に示すように、厚肉でかつリップよりも背の高いほぼ扇形状をなしている。このフランジ58は、詳しくは後記するように、雄雌のハウジング10,30の嵌合動作の終盤において、小フード部12の先端縁と、大フード部32の奥壁32Aとの間で挟圧されるようになっている。
【0016】
端子収容部31の前面には、同様に前壁を兼ねたフロント形式のリテーナ38が装着され、それに伴い、両雌端子34S,34Lが二重係止されて収容されているとともに、シールリング55の抜け止めが図られている。このリテーナ38の表面が、雌ハウジング30側の嵌合端面40となる。この嵌合端面40から端子収容部31の内部にわたり、上記した雄ハウジング10側のガイド板21がほぼ緊密に挿入されるガイド溝41が形成されている。
【0017】
雌ハウジング30の上面にはロックアーム43が設けられている。このロックアーム43は、前後方向に細長く、大フード部32の奥壁32Aとほぼ一致する位置に設けられた支点44を中心として、シーソー状に傾動可能となっている。大フード部32の上面における幅方向の中央部には膨出部45が形成され、さらにこの膨出部45には、後端に開口した逃がし溝46が形成され、ロックアーム43の前端側が上方に傾動するのを許容するようになっている。このロックアーム43の前端部は、雄ハウジング10の両ガイド壁22で案内されて真直に進入可能となっている。
【0018】
ロックアーム43には、その前端から少し入った位置から後方に向けて溝47が切られており、その溝47の前端が、雄ハウジング10の係止部23が係止可能な被係止面48となっている。
ロックアーム43の先端縁の下縁は、ガイド用にテーパ面50とされている。ロックアーム43の後端側の上面には、ロックの解除操作用の押圧部51が形成され、端子収容部31の後半部分の上面との間に、ロックアーム43の後端側が下方に傾動することを許容するスペースが設けられている。
【0019】
雌ハウジング30における大フード部32の下面には、この雌ハウジング30をブラケット60を介して相手部材(図示せず)に取り付けるための取付部65が形成されている。
ブラケット60は金属製であって、図11及び図12に示すように、所定幅の板状に形成され、先端寄りの位置に係止孔61が開口されている。ブラケット60の先端の両角にはR部62が形成されており、また、先端縁から所定寸法入った位置で拡幅されて、ストッパ段部63が形成されている。
【0020】
上記した取付部65には、図6並びに図11,12に示すように、ブラケット60を緊密に挿通する挿通路66が、両ハウジング10,30の嵌合方向と直交する方向に向けて形成されている。この挿通路66は、正面から見た左側が入口67であって、その口縁がガイド用にテーパ状に形成され、一方右側では、幅狭部68が形成されて逆挿入が規制されている。
挿通路66の底面にはロック片70が形成されている。このロック片70は、両側にスリット71を入れることで入口67側から反対側に向けた片持ち状に形成され、上下方向に撓み変形可能となっており、その上面には、ブラケット60の係止孔61に嵌まる突部72が形成されている。なお、ロック片70の先端には解除操作用の押圧部73が形成され、この押圧部73を押してロック片70を下方に強制的に撓み変形させることで、突部72を係止孔61から抜いてロックを解除できるようになっている。ロック片70の下方には、ロック片70の過度の撓み変形を規制すべく規制部74が、両側壁間に架橋されるようにして形成されている。
【0021】
さて、上記した取付部65には、図11及び図12に示すように、挿通路66の入口67側に寄った位置において、この挿通路66を横切って貫通するようにして(両ハウジング10,30の嵌合方向に沿って)、検知溝75が形成されている。この検知溝75は、大フード部32の内周面に開口し、その開口側は大フード部32の奥壁32A付近にまで達している。
一方、雄ハウジング10における小フード部12の下面には、上記の検知溝75に進入可能なリブ77が立てられ、特にリブ77の先端の下面には、挿通路66の部分を横切る検知部78が突設されている。
【0022】
検知部78は背の低い角柱状に形成され、進入方向の前面側の角には、ガイド用にC面79が形成されている。そして、詳しくは後記するように、両ハウジング10,30間がロックアーム43によりロックされたのち、シールリング55のフランジ58の復元弾力でロックアーム43の被係止面48と相手の係止部23とが密着するまで両ハウジング10,30が離反した状態において、下面側における両ハウジング10,30の嵌合端面20,40同士の間隔が、上面側の嵌合端面20,40同士の間隔に等しくなって初めて、検知部78が挿通路66を横切って完全に通過する設定となっている(図16参照)。以上により、本発明に係る別のロック手段80が構成されている。
【0023】
本実施形態は上記のような構造であって、続いてその作用を説明する。
図1の状態から雄雌のハウジング10,30を嵌合する。嵌合が進むと、図13に示すように、ロックアーム43の先端が相手の雄ハウジング10の係止部23のガイド面24に突き当たり、ロックアーム43は係止部23に乗り上げるようにして前端側を上方へ傾動させた状態で押し込まれる。この間、雄ハウジング10のリブ77並びに検知部78が、取付部65の検知溝75に進入して挿通路66を横切る。嵌合動作が終盤に近づくと、雄ハウジング10の小フード部12の先端縁が、雌ハウジング30の大フード部32の奥壁32Aに接近し、両者間でシールリング55の四つ角に設けられたフランジ58が弾縮される。
【0024】
両ハウジング10,30が所定量嵌合されると、小型の雄雌の端子金具14S,34Sの接点部同士、及び大型の雄雌の端子金具14L,34Lの接点同士が接続されるとともに、ロックアーム43の被係止面48が係止部23の位置を通過するため、ロックアーム43が元姿勢に復元して係止部23が溝47内に嵌合されてロックされる。その際、通常であれば、ロックアーム43の被係止面48と、係止部23との間にはクリアランスが生ずるが、ロックアーム43が復動するのと同時に、図14に示すように、シールリング55のフランジ58の厚さ方向の復元弾力により両ハウジング10,30が互いに離反させられ、ロックアーム43の被係止面48が係止部23に弾性的に押し付けられた状態となる。
ここで、上記のようにフランジ58の復元弾力で両ハウジング10,30が離反したとき、上面側ではロックアーム43が係止部23に密着して離反が規制されるのに対して、下面側ではそのような規制がないことから、同図に示すように、下面側が開いたような状態となる場合があり得る。
【0025】
一方、雄雌のハウジング10,30の嵌合操作が完了したら、相手部材(図示せず)に取り付けるべく、相手部材に設けられたブラケット60を雌ハウジング30の取付部65の挿通路66に相対的に差し込む。このとき、上記のように両ハウジング10,30の嵌合端面20,40間が下面側で開いていると、図15に示すように、検知部78が挿通路66を完全に横切る手前に留まり、すなわち挿通路66の内側に少し突出した状態にある。
そして、ブラケット60が挿通路66内に差し込まれると、先端の角のR部62が検知部78の後面を押すことで、図15の矢線に示すように、検知部78が強制的に挿通路66を通過する位置まで移動させられ、それに伴い、フランジ58を弾縮させつつ両ハウジング10,30の下面側が互いに引き寄せられる。
【0026】
ブラケット60はさらにロック片70を撓み変形させつつ差し込まれ、ストッパ段部63が入口67の口縁に突き当たる所定位置まで差し込まれたら、図16及び図17に示すように、ロック片70が復元変形して突部72が係止孔61に嵌まることで、取付部65すなわち両ハウジング10,30がブラケット60に対して取り付けられる。
一方、ブラケット60の側縁64が、挿通路66を通過し切った検知部78の後面に係止することによって、両ハウジング10,30の下面側が互いに引き寄せられた状態にロックされる。
【0027】
以上により雄雌のハウジング10,30は、図18に示すように、嵌合端面20,40同士の間隔が周方向の広範囲にわたってほぼ等しくなる嵌合状態に保持される。言い換えると、フランジ58が4箇所でほぼ均一の弾縮量で挟圧された状態に保持され、両ハウジング10,30の嵌合方向に沿ったがたつきが全周にわたって阻止される。これにより、すべての雄雌の端子金具14,34間の接点部で摩耗することが防止され、長期にわたって接触圧等の良好な接触状態が保持される。
特に両ハウジング10,30の下面側の嵌合端面20,40間が開いていた場合に、それが自動的に補正されて保持されるから、操作性がよい。
【0028】
なお、フランジ58の復元弾力で両ハウジング10,30が離反して、ロックアーム43が係止部23に密着した場合に、両ハウジング10,30の下面側で嵌合端面20,40間の開きが生じなかった場合は、検知部78が挿通路66を通過し切った状態にあるから、ブラケット60はそのまま挿通路66に差し込まれる。そしてロックされた後は、検知部78の後面に係止することで、下面側も上面側の同程度に閉じた状態に保持される。
【0029】
<第2実施形態>
本発明の第2実施形態を図19によって説明する。この第2実施形態では、第1実施形態に設けられた別のロック手段80に相当する部分について、雄雌のハウジング10,30の嵌合検知を行う機能を付加した場合を例示している。
そのためこの第2実施形態では、両ハウジング10,30の嵌合が進んで、ロックアーム43の被係止面48が係止部23の位置を通過するに至ったところで、図19(B)の鎖線に示すように、検知部78Aが挿通路66を横切って完全に通過する設定となっている。それに加え、検知部78Aの後面における少なくとも挿通路66の入口67側の角には、テーパ状のカム面82が形成されている。
また、ブラケット60Aにおける検知部78Aの後面に係止する側の側縁64には、検知部78Aが挿通路66を完全に横切ったのち、挿通路66側に戻ることを許容する逃がし凹部84が切り欠き形成されている。この逃がし凹部84の深さは、ロックアーム43と係止部23とが密着すべく両ハウジング10,30が所定寸法離反し、これに伴い、検知部78Aが挿通路66内に同寸法戻れるものに設定されている。
【0030】
本第2実施形態の作用は以下のようである。雄雌のハウジング10,30を嵌合する場合に、特に多極になると嵌合抵抗が増大することから、ロックアーム43によるロックが掛かる前に嵌合操作を停止し、すなわち半嵌合状態に留め置かれる場合があり得る(図13参照)。
その場合は本実施形態では、検知部78Aが挿通路66を完全に横切る手前に留まり、すなわち挿通路66の内側に突出した状態にあるから、ブラケット60Aが挿通路66内に差し込まれた場合に、図19(A)に示すように、ブラケット60Aの先端が突出した検知部78Aの後面のカム面82に一旦突き当たって挿入が規制され、半嵌合状態にあったことが検知される。
さらにブラケット60Aを押し込むと、カム面82が押されることで、検知部78Aが強制的に挿通路66を通過する位置まで移動させられ(図19(B)の鎖線)、それに伴って両ハウジング10,30は、ロックアーム43の被係止面48が係止部23の位置を通過するまで互いに引き寄せられ、ロックアーム43が復動してロックが掛かる。
【0031】
この間、シールリング55のフランジ58が厚さ方向に弾縮されている。一方、ブラケット60Aに形成された逃がし凹部84が、図19(B)に示すように、検知部78Aの後方に対応しているから、上記のロックアーム43が復動するのと同時に、フランジ58の厚さ方向の復元弾力により、検知部78Aが逃がし凹部84内に戻りつつ両ハウジング10,30が互いに離反させられ、ロックアーム43の被係止面48が係止部23に弾性的に押し付けられる。それとともに下面側では、検知部78Aの後面がブラケット60Aの逃がし凹部84の奥縁に係止し、ロックされた状態となる。
以上により雄雌のハウジング10,30は、嵌合端面20,40同士の間隔が周方向の広範囲にわたってほぼ等しくなる嵌合状態に保持され(第1実施形態の図18参照)、両ハウジング10,30の嵌合方向に沿ったがたつきが全周にわたって阻止される。
【0032】
この第2実施形態では、雄雌のハウジング10,30が、ロックアーム43によるロックが掛かっていない半嵌合状態に留め置かれた場合に、ブラケット60Aを挿通路66に挿通する動作に伴ってこれを自動的に補正してロックアーム43によるロックを掛け、その後は、両ハウジング10,30の嵌合方向に沿ったがたつきを全周にわたって阻止するように機能し、すべての雄雌の端子金具14,34間の接点部で摩耗することを防止して、長期にわたって接触圧等の良好な接触状態を保持することができる。
【0033】
<他の実施形態>
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。
(1)上記第1実施形態では、ハウジングの嵌合端面間が開いて検知部が挿通路内に入り込んでいる場合に、ブラケットの挿入に伴い検知部を自動的に挿通路を横切った位置に移動させ得るようにしたが、検知部が挿通路内に入り込んでいる場合にはブラケットが突き当たってそれ以上の挿通が規制されることでハウジングが開いていることを検知し、手動により開いた側を閉じたのち改めてブラケットを挿通してロックする構造としてもよく、そのようなものも本発明の技術的範囲に含まれる。
【0034】
(2)同第1実施形態において、ブラケットの挿通に伴い検知部を自動的に挿通路を横切った位置に移動させ得るカム手段として、検知部側にR部若しくはC面を形成するようにしてもよい。
(3)シールリングのフランジは、全周に設けるようにしてもよい。
(4)ブラケットを挿通する取付部は、上記実施形態のようにロックアームを設けた側と同じハウジング側に設けてもよいし、逆のハウジング側に設けてもよい。
(5)ロックアームは、上記したシーソー状に変位するものに限らず、片持ち状に配されて基端側を中心に傾動変位するものにも、本発明は同様に適用することができる。
【図面の簡単な説明】
【図1】本発明の第1実施形態に係る雄雌のハウジングの嵌合前の状態を示す縦断面図
【図2】雄ハウジングの縦断面図
【図3】その正面図
【図4】その平面図
【図5】雌ハウジング側の分解斜視図
【図6】雌ハウジングの縦断面図
【図7】その正面図
【図8】その平面図
【図9】シールリングの正面図
【図10】その縦断面図
【図11】別のロック手段であるブラケットの取付部分を示す分解平断面図
【図12】その分解縦断面図
【図13】雄雌のハウジングの嵌合途中の状態を示す縦断面図
【図14】ロックアームによるロックが掛かった直後の状態を示す縦断面図
【図15】別のロック手段におけるブラケットの挿入動作を示す平断面図
【図16】別のロック手段のロックが掛かった状態を示す平断面図
【図17】その縦断面図
【図18】最終取付状態を示す縦断面図
【図19】第2実施形態に係るブラケットの取付部分の平断面図
【図20】従来例の縦断面図
【符号の説明】
10…雄ハウジング
12…小フード部
14S,14L…雄端子
20…嵌合端面
23…係止部
30…雌ハウジング
32A…(大フード部32の)奥縁
34S,34L…雌端子
40…嵌合端面
43…ロックアーム
48…被係止面
55…シールリング
58…フランジ
60…ブラケット
62…(ブラケット60の)R部(カム手段)
65…取付部
66…挿通路
70…ロック片
75…検知溝
78…検知部
80…別のロック手段
60A…ブラケット
78A…検知部
84…逃がし凹部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a connector provided with a means for preventing fine sliding wear between terminal fittings.
[0002]
[Prior art]
The general structure of the connector includes a pair of male and female housings each having terminal fittings mounted thereon, and one of the housings is provided with a lock arm having a locked portion so as to be elastically tiltable. When the two housings are fitted together while the arm is tilted and the male and female terminal fittings are fitted by a predetermined amount that is properly connected to each other, the lock arm is moved back and the locked portion is provided in the mating housing. And is held in the fitted state.
[0003]
By the way, as described above, in the apparatus having the lock arm that tilts as the lock mechanism, in order to allow the tilt to get on and off the locking part of the partner, the locked part of the lock arm and the locking part of the partner I have to set some clearance between them. Then, if the housing is installed in a place that is easily subjected to vibrations or the like from the outside, the two housings rattle in the fitting direction, and the contact portions of the male and female terminal fittings repeatedly finely slide, and the contact portions gradually wear. There is a problem that adverse effects such as a decrease in contact pressure are caused.
[0004]
Therefore, conventionally, as means for eliminating rattling between the male and female housings in order to prevent the above-mentioned fine sliding wear between the terminal fittings, the one shown in FIG. 20 has been proposed. This utilizes a waterproof seal ring 5 mounted between the outer periphery of the terminal housing 2 of the female housing 1 and the inner periphery of the hood 4 of the male housing 3. More specifically, a flange 5 </ b> A is provided on the outer periphery of the rear end of the seal ring 5 so as to face between the front end of the hood portion 4 and the abutting wall 6 of the female housing 1 opposed thereto. At the end of the fitting, the flange 5A of the seal ring 5 is elastically contracted between the hood portion 4 and the abutment wall 6, and the restoring elasticity urges the two housings 1, 3 in a direction in which they are separated from each other. It is intended that the locking portion 8 is brought into close contact with the locked portion 7 </ b> A of the lock arm 7 so as to eliminate play in the fitting direction of the male and female housings 1 and 3.
A connector in which this kind of measure is taken is disclosed in Utility Model Registration No. 2542639.
[0005]
[Problems to be solved by the invention]
However, in the connector as described above, when the two housings 1 and 3 are separated by the restoring elasticity of the flange 5A, the upper surface provided with the lock arm 7 is in close contact with the locking portion 8 and further separation is restricted. However, since there is no such restriction on the lower surface side, there may be a case where the lower surface side is open as shown by an arrow x in FIG. 20 (gap S1 on the upper surface side <gap S2 on the lower surface side). ). In other words, on the lower surface side, the flange 5A is not elastically shrunk or is in a slightly limited state, so that there is room for the housings 1 and 3 to rattle in the fitting direction on the lower surface side. As a result, there is a possibility that fine sliding wear may still occur particularly between the lower and upper male and female terminal fittings f and m.
The present invention has been completed based on the above-described circumstances, and an object of the present invention is to eliminate play in the fitting direction of the male and female housings over a wide area in the circumferential direction.
[0006]
[Means for Solving the Problems]
As means for achieving the above object, the invention according to claim 1 is characterized in that a lock arm is provided on one of a pair of housings each having a terminal fitting mounted thereon so as to be elastically tiltable, The two housings are fitted together while tilting the lock arm, and when a predetermined amount is fitted, the lock arm is moved back and locked to the locking portion provided on the other housing. A seal ring is mounted between the surfaces, and a flange that can be sandwiched between opposed surfaces of the two housings in the fitting direction when the two housings are fitted by a predetermined amount is provided on the outer periphery of the seal ring. The lock arm is provided in a connector that is formed so as to protrude, and the lock arm and the locking portion are brought into close contact with each other while separating the two housings by the restoring elasticity of the flange. At the position on the opposite side of the circumferential direction from the opposite side, in a state where the two housings are separated from each other until the lock arm and the locking portion are in close contact with each other, the distance between the fitting end surfaces of the two housings at the opposite side position is changed. Another feature is that another locking means is provided which is capable of holding the housing at a position substantially equal to the distance between the fitting end faces on which the lock arm is provided and locking the two housings.
[0007]
According to a second aspect of the present invention, in the first aspect, a bracket for attaching to a counterpart member is provided on an outer surface of one of the housings in a circumferential direction opposite to a side on which the lock arm is provided. By providing an insertion passage that can be inserted in a direction intersecting with the fitting direction of the housings, the other housing is provided with a detection unit that can move across the insertion passages along with the fitting of the two housings. The other locking means is formed, and in a state where the two housings are separated from each other until the lock arm and the locking portion are in close contact with each other, the interval between the fitting end surfaces of the two housings on the side where the insertion passage is provided, Only when the distance between the fitting end faces on the side where the lock arm is provided is substantially equal to the distance between the fitting end faces, the detection portion is set to pass across the insertion passage, Characterized in place the bracket inserted through the passage has a configuration which engages the stop-like spots on the surface after the moving direction of the detection unit.
According to a third aspect of the present invention, in the second aspect, the bracket is inserted between the detector and the bracket when the detector stays short of passing through the insertion passage. Accordingly, a characteristic is that a cam means for moving the detection unit to the passing position is formed.
[0008]
Function and effect of the present invention
<Invention of claim 1>
When the pair of housings are fitted and locked by the lock arm, the lock arm and the locking portion are brought into close contact with each other while receiving the restoring elasticity of the flange of the seal ring and separating the two housings. Subsequently, when the two housings are locked by another locking means at a position opposite to the side on which the lock arm is provided and in the circumferential direction, the two housings are fitted so that the intervals between the fitting end surfaces are substantially equal over a wide range in the circumferential direction. It is kept in the matching state. In other words, since the flange is held in a state where it is clamped with a substantially uniform amount of elasticity over a wide range in the circumferential direction, rattling along the fitting direction of both housings is prevented over the entire circumference, and all terminal fittings are provided. The occurrence of fine sliding wear is prevented for the pair of.
[0009]
<Invention of Claim 2>
When the lock arm is locked and the two arms are separated by the restoration elasticity of the flange and the lock arm and the locking portion are in close contact with each other, the two housings are fitted on the side opposite to the side where the lock arm is provided and the circumferential direction. If the gap between the end faces is open, the detection portion does not completely pass across the insertion passage and stays on the way. In this state, when the bracket is inserted into the insertion passage, the insertion is further restricted by hitting the detection portion, and it is detected that the bracket is open on the side opposite to the side where the lock arm is provided.
Then, if the side opposite to the side where the lock arm is provided is further fitted, the detection part will pass completely across the insertion path, so the bracket can be inserted into the insertion path and locked on the rear surface of the detection part. It is stopped by. As a result, the two housings are held in the fitted state in which the distance between the fitting end faces is substantially equal over a wide range in the circumferential direction, and the elasticity of the flanges is substantially uniform. The rattling can be prevented over the entire circumference.
[0010]
<Invention of Claim 3>
If the space between the fitting end surfaces of the two housings is open on the side opposite to the side where the lock arm is provided, the detection unit stays in front without passing through the insertion passage. When the bracket is inserted into the insertion passage in this state, the detection unit is forcibly moved to a position where the detection unit passes through the insertion passage via the cam means between the bracket and the detection unit, and accordingly, both housings are drawn toward each other. .
If the gap between the mating end faces of both housings is open on the opposite side, it is automatically corrected and held.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
<First embodiment>
A first embodiment of the present invention will be described with reference to FIGS.
The connector of this embodiment is a waterproof connector of a hybrid type, and includes a male housing 10 and a female housing 30 that can be fitted together as shown in FIG. Hereinafter, in each of the housings 10 and 30, the fitting end side is described as the front.
[0012]
As shown in FIGS. 2 to 4, the male housing 10 has a terminal receiving portion 11 and a slightly horizontally elongated small hood portion 12 which covers the front part of the terminal receiving portion 11 from around the front half thereof. In the terminal accommodating portion 11, four small cavities 13S are formed on the upper side, and two large cavities 13L are formed on the lower side.
Small male terminals 14S and large male terminals 14L are respectively inserted into the small cavities 13S and the large cavities 13L from the rear, are primarily locked by the lances 15, and the entrances of the cavities 13S and 13L are waterproof. It is closed by a rubber stopper 16.
[0013]
A front-type retainer 18 also serving as a front wall is mounted on the front surface of the terminal accommodating portion 11. As shown in FIG. 1, the male terminals 14 </ b> S and 14 </ b> L have respective tabs from the surface of the retainer 18 inside the small hood portion 12. Are double-locked and housed. The surface of the retainer 18 becomes the fitting end surface 20 on the male housing 10 side. A guide plate 21 protrudes from the fitting end surface 20 so as to partition the inside of the small hood portion 12 left and right.
A pair of guide walls 22 facing the front-rear direction are formed on the upper surface of the small hood portion 12 at the center in the width direction, and a locking portion 23 is protruded at a position closer to the front end between the two guide walls 22. ing. The front surface of the locking portion 23 is a tapered guide surface 24, and the rear surface is a locking surface 25 that is raised at a substantially right angle.
[0014]
Next, the female housing 30 will be described. As shown in FIGS. 5 to 8, the female housing 30 has a terminal accommodating portion 31 fitted to the inner periphery of the small hood portion 12 of the male housing 10 with a predetermined clearance. A large hood portion 32 that is fitted almost tightly to the outside of the small hood portion 12 is formed around the front half portion of the storage portion 31 and slightly forward thereof.
Similarly, four small cavities 33S are formed on the upper side and two large cavities 33L are formed on the lower side in the terminal accommodating portion 31 in the same manner. A small female terminal 34S and a large female terminal 34L are respectively inserted into the 33L from the rear, are primarily locked by lances 35, and the entrances of the cavities 33S and 33L are closed by waterproof rubber plugs 36. It is supposed to be.
[0015]
Around the terminal accommodating portion 31, a seal ring 55 made of an elastic material such as rubber is mounted immediately before the inner wall 32A of the large hood portion 32. As shown in FIGS. 9 and 10, the seal ring 55 is elastically compressed between the outer periphery of the terminal housing portion 31 and the inner periphery on the distal end side of the small hood portion 12 so as to be sealed. , And two lips 56 shown in the figure are formed over the entire circumference.
Flanges 58 are integrally formed at four corners on the outer periphery of the rear end (the right side in FIG. 10) of the seal ring 55, and the flange 58 is thick and taller than the lip, as shown in FIG. It is almost fan-shaped. As will be described in detail later, the flange 58 presses the distal end edge of the small hood portion 12 and the back wall 32A of the large hood portion 32 at the end of the fitting operation of the male and female housings 10, 30. It is supposed to be.
[0016]
A front type retainer 38, which also functions as a front wall, is mounted on the front surface of the terminal accommodating portion 31. Accordingly, the female terminals 34S and 34L are double-locked and accommodated, and the seal ring 55 Is prevented from falling off. The surface of the retainer 38 becomes the fitting end surface 40 on the female housing 30 side. From the fitting end face 40 to the inside of the terminal accommodating portion 31, a guide groove 41 into which the guide plate 21 on the male housing 10 side is inserted almost tightly is formed.
[0017]
A lock arm 43 is provided on the upper surface of the female housing 30. The lock arm 43 is elongated in the front-rear direction, and can be tilted in a seesaw shape about a fulcrum 44 provided at a position substantially coincident with the back wall 32A of the large hood portion 32. A bulging portion 45 is formed at the center of the upper surface of the large hood portion 32 in the width direction, and a escaping groove 46 is formed at the bulging portion 45 and opened at the rear end. Is allowed to tilt. The front end of the lock arm 43 is guided by the two guide walls 22 of the male housing 10 and can enter straight.
[0018]
The lock arm 43 has a groove 47 cut rearward from a position slightly entered from the front end thereof, and the front end of the groove 47 is a locked surface on which the locking portion 23 of the male housing 10 can be locked. 48.
The lower edge of the distal end edge of the lock arm 43 is a tapered surface 50 for guiding. A pressing portion 51 for unlocking operation is formed on the upper surface on the rear end side of the lock arm 43, and the rear end side of the lock arm 43 tilts downward with the upper surface of the rear half portion of the terminal accommodating portion 31. A space is provided to allow for this.
[0019]
An attachment portion 65 for attaching the female housing 30 to a mating member (not shown) via a bracket 60 is formed on a lower surface of the large hood portion 32 in the female housing 30.
The bracket 60 is made of metal, and is formed in a plate shape having a predetermined width, as shown in FIGS. 11 and 12, and has a locking hole 61 at a position near the front end. R-shaped portions 62 are formed at both corners of the front end of the bracket 60, and a widened portion is formed at a position having a predetermined dimension from the front end edge to form a stopper stepped portion 63.
[0020]
As shown in FIG. 6 and FIGS. 11 and 12, an insertion passage 66 for tightly inserting the bracket 60 is formed in the mounting portion 65 in a direction orthogonal to the fitting direction of the housings 10 and 30. ing. The insertion passage 66 has an entrance 67 on the left side as viewed from the front, and a rim thereof formed in a tapered shape for guide, while a narrow portion 68 is formed on the right side to restrict reverse insertion. .
A lock piece 70 is formed on the bottom surface of the insertion passage 66. The locking piece 70 is formed in a cantilever shape from the entrance 67 side to the opposite side by inserting slits 71 on both sides, and can be bent and deformed in the up-down direction. A projection 72 that fits into the stop hole 61 is formed. A pressing portion 73 for releasing operation is formed at the tip of the lock piece 70, and the protrusion 72 is moved from the locking hole 61 by pressing the pressing portion 73 to forcibly deform the lock piece 70 downward. It can be unlocked by pulling it out. Below the lock piece 70, a regulating portion 74 is formed so as to be bridged between both side walls to regulate excessive bending deformation of the lock piece 70.
[0021]
As shown in FIGS. 11 and 12, the mounting portion 65 penetrates across the insertion passage 66 at a position close to the entrance 67 side of the insertion passage 66 (both housings 10 and 10). 30 (along the fitting direction 30), a detection groove 75 is formed. The detection groove 75 is opened on the inner peripheral surface of the large hood 32, and the opening side reaches the vicinity of the back wall 32 </ b> A of the large hood 32.
On the other hand, on the lower surface of the small hood portion 12 of the male housing 10, a rib 77 which can enter the detection groove 75 is provided. Is protruding.
[0022]
The detecting portion 78 is formed in a short prismatic shape, and has a C surface 79 for guiding at a corner on the front side in the approach direction. Then, as will be described in detail later, after the housings 10 and 30 are locked by the lock arm 43, the locked surface 48 of the lock arm 43 and the mating portion of the mating member 48 are restored by the restoring elasticity of the flange 58 of the seal ring 55. In a state where the two housings 10 and 30 are separated from each other until they come into close contact with each other, the interval between the fitting end surfaces 20 and 40 of the two housings 10 and 30 on the lower surface side becomes equal to the interval between the fitting end surfaces 20 and 40 on the upper surface side. Only when they are equal, the detection unit 78 is set to completely pass across the insertion passage 66 (see FIG. 16). As described above, another locking means 80 according to the present invention is configured.
[0023]
This embodiment has the above-described structure, and its operation will be described below.
The male and female housings 10, 30 are fitted from the state of FIG. As the fitting proceeds, as shown in FIG. 13, the distal end of the lock arm 43 abuts against the guide surface 24 of the locking portion 23 of the mating male housing 10, and the lock arm 43 rides on the locking portion 23 so that the front end is It is pushed in with the side tilted upward. During this time, the rib 77 and the detection portion 78 of the male housing 10 enter the detection groove 75 of the mounting portion 65 and cross the insertion passage 66. When the fitting operation nears the end, the leading edge of the small hood portion 12 of the male housing 10 approaches the back wall 32A of the large hood portion 32 of the female housing 30 and is provided at the four corners of the seal ring 55 therebetween. The flange 58 is elasticized.
[0024]
When the housings 10 and 30 are fitted by a predetermined amount, the contacts of the small male and female terminal fittings 14S and 34S and the contacts of the large male and female terminal fittings 14L and 34L are connected and locked. Since the locked surface 48 of the arm 43 passes through the position of the locking portion 23, the lock arm 43 is restored to the original position, and the locking portion 23 is fitted into the groove 47 and locked. At this time, normally, a clearance occurs between the locked surface 48 of the lock arm 43 and the locking portion 23, but at the same time as the lock arm 43 returns, as shown in FIG. The two housings 10 and 30 are separated from each other by the restoring elasticity of the flange 58 of the seal ring 55 in the thickness direction, and the locked surface 48 of the lock arm 43 is elastically pressed against the locking portion 23. .
Here, when the two housings 10, 30 are separated by the restoring elasticity of the flange 58 as described above, the lock arm 43 is in close contact with the locking portion 23 on the upper surface side and the separation is regulated, whereas the lower surface side is restricted. Since there is no such restriction, the lower surface side may be in an open state as shown in FIG.
[0025]
On the other hand, when the fitting operation of the male and female housings 10 and 30 is completed, the bracket 60 provided on the mating member is inserted into the insertion passage 66 of the mounting portion 65 of the female housing 30 so as to be attached to the mating member (not shown). Plug in. At this time, if the space between the mating end surfaces 20 and 40 of the housings 10 and 30 is open on the lower surface side as described above, the detection unit 78 stays short of completely crossing the insertion passage 66 as shown in FIG. That is, it is in a state of slightly protruding inside the insertion passage 66.
Then, when the bracket 60 is inserted into the insertion passage 66, the R portion 62 at the end pushes the rear surface of the detection portion 78, and the detection portion 78 is forcibly inserted as shown by the arrow in FIG. The lower surfaces of the housings 10 and 30 are drawn toward each other while the flange 58 is elastically compressed while being moved to a position where the housing 66 passes through the passage 66.
[0026]
The bracket 60 is further inserted while flexing and deforming the lock piece 70. When the stopper step 63 is inserted to a predetermined position where it abuts against the edge of the entrance 67, the lock piece 70 is restored and deformed as shown in FIGS. Then, the fitting portion 65, that is, both housings 10 and 30 are attached to the bracket 60 by fitting the protrusion 72 into the locking hole 61.
On the other hand, the side edges 64 of the bracket 60 are locked to the rear surface of the detection portion 78 that has passed through the insertion passage 66, so that the lower surfaces of the housings 10 and 30 are locked in a state where they are drawn toward each other.
[0027]
As described above, the male and female housings 10, 30 are held in a fitted state in which the intervals between the fitting end surfaces 20, 40 are substantially equal over a wide range in the circumferential direction, as shown in FIG. In other words, the flange 58 is held in a state where the flange 58 is clamped at a substantially uniform amount of elasticity, and rattling along the fitting direction of the housings 10 and 30 is prevented over the entire circumference. This prevents wear at the contact portions between all the male and female terminal fittings 14, 34, and maintains a good contact state such as contact pressure for a long time.
In particular, when the space between the fitting end surfaces 20 and 40 on the lower surfaces of the housings 10 and 30 is open, this is automatically corrected and held, so that operability is good.
[0028]
When the housings 10 and 30 are separated from each other by the restoring elasticity of the flange 58 and the lock arm 43 comes into close contact with the locking portion 23, the opening between the fitting end surfaces 20 and 40 on the lower surfaces of the housings 10 and 30. Does not occur, the detection unit 78 has passed through the insertion passage 66, and the bracket 60 is inserted into the insertion passage 66 as it is. After being locked, by locking to the rear surface of the detection unit 78, the lower surface side is also kept in a closed state to the same extent as the upper surface side.
[0029]
<Second embodiment>
A second embodiment of the present invention will be described with reference to FIG. The second embodiment exemplifies a case in which a function of detecting the fitting of the male and female housings 10 and 30 is added to a portion corresponding to another locking means 80 provided in the first embodiment.
For this reason, in the second embodiment, when the fitting of the two housings 10 and 30 progresses and the locked surface 48 of the lock arm 43 passes through the position of the locking portion 23, FIG. As indicated by the dashed line, the detection portion 78A is set to completely pass across the insertion passage 66. In addition, a tapered cam surface 82 is formed at least at a corner of the rear surface of the detection portion 78A on the entrance 67 side of the insertion passage 66.
A relief recess 84 that allows the detection portion 78A to completely return to the insertion passage 66 after the detection portion 78A has completely traversed the insertion passage 66 is provided on the side edge 64 of the bracket 60A that is locked to the rear surface of the detection portion 78A. Notches are formed. The depth of the relief concave portion 84 is such that the two housings 10 and 30 are separated from each other by a predetermined size so that the lock arm 43 and the locking portion 23 come into close contact with each other, and accordingly, the detecting portion 78A can be returned to the insertion passage 66 by the same size. Is set to
[0030]
The operation of the second embodiment is as follows. When the male and female housings 10 and 30 are fitted, the fitting resistance is increased particularly when the number of poles is increased. Therefore, the fitting operation is stopped before the lock by the lock arm 43 is applied, that is, the half-fitted state is reached. It may be detained (see FIG. 13).
In this case, in this embodiment, since the detection portion 78A stays short of completely crossing the insertion path 66, that is, it is in a state of protruding inside the insertion path 66, when the bracket 60A is inserted into the insertion path 66, As shown in FIG. 19A, the tip of the bracket 60A once abuts against the cam surface 82 on the rear surface of the protruding detection portion 78A to restrict insertion, and it is detected that the bracket 60A is in a semi-fitted state.
When the bracket 60A is further pushed in, the cam surface 82 is pushed, so that the detection portion 78A is forcibly moved to a position where it passes through the insertion passage 66 (a chain line in FIG. 19B). , 30 are pulled toward each other until the locked surface 48 of the lock arm 43 passes through the position of the locking portion 23, and the lock arm 43 is moved back and locked.
[0031]
During this time, the flange 58 of the seal ring 55 is elastically contracted in the thickness direction. On the other hand, the relief recess 84 formed in the bracket 60A corresponds to the rear of the detection portion 78A as shown in FIG. 19B, so that the lock arm 43 moves back and the flange 58 at the same time. Due to the restoring elasticity in the thickness direction, the housings 10 and 30 are separated from each other while the detecting portion 78A returns to the escape concave portion 84, and the locked surface 48 of the lock arm 43 is elastically pressed against the locking portion 23. Can be At the same time, on the lower surface side, the rear surface of the detection portion 78A is locked to the deep edge of the relief recess 84 of the bracket 60A, and is in a locked state.
As described above, the male and female housings 10, 30 are held in a fitted state in which the distance between the fitting end surfaces 20, 40 is substantially equal over a wide range in the circumferential direction (see FIG. 18 of the first embodiment). The rattling along the fitting direction of 30 is prevented over the entire circumference.
[0032]
In the second embodiment, when the male and female housings 10 and 30 are kept in a semi-fitted state in which the lock by the lock arm 43 is not engaged, the operation of inserting the bracket 60A into the insertion passage 66 is performed. This is automatically corrected and locked by the lock arm 43, and thereafter, it functions to prevent rattling along the fitting direction of both housings 10 and 30 over the entire circumference, and all male and female The contact portion between the terminal fittings 14 and 34 can be prevented from being worn, and a good contact state such as contact pressure can be maintained for a long time.
[0033]
<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, and furthermore, besides the following, within the scope not departing from the gist. Can be implemented with various modifications.
(1) In the first embodiment, when the fitting end faces of the housing are open and the detecting portion enters the insertion passage, the detecting portion is automatically moved to the position crossing the insertion passage with the insertion of the bracket. Although it can be moved, when the detection part is in the insertion passage, the bracket abuts and the further insertion is restricted, so that it is detected that the housing is open, and the side where the housing is manually opened is detected. After closing the bracket, the bracket may be inserted again to lock the bracket, and such a structure is also included in the technical scope of the present invention.
[0034]
(2) In the first embodiment, as the cam means capable of automatically moving the detecting portion to a position crossing the insertion passage as the bracket is inserted, an R portion or a C surface is formed on the detecting portion side. Is also good.
(3) The flange of the seal ring may be provided on the entire circumference.
(4) The mounting portion through which the bracket is inserted may be provided on the same housing side as the side where the lock arm is provided as in the above embodiment, or may be provided on the opposite housing side.
(5) The present invention can be similarly applied to not only the above-described seesaw-shaped displaceable lock arm but also an arm that is arranged in a cantilever shape and tilts and displaces around the base end side.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a state before fitting a male and female housing according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a male housing.
FIG. 3 is a front view thereof.
FIG. 4 is a plan view thereof.
FIG. 5 is an exploded perspective view of the female housing.
FIG. 6 is a longitudinal sectional view of a female housing.
FIG. 7 is a front view thereof.
FIG. 8 is a plan view thereof.
FIG. 9 is a front view of a seal ring.
FIG. 10 is a longitudinal sectional view thereof.
FIG. 11 is an exploded plan sectional view showing a mounting portion of a bracket which is another locking means.
FIG. 12 is an exploded longitudinal sectional view thereof.
FIG. 13 is a longitudinal sectional view showing a state in which the male and female housings are being fitted.
FIG. 14 is a longitudinal sectional view showing a state immediately after locking by a lock arm is performed;
FIG. 15 is a cross-sectional plan view showing an operation of inserting a bracket in another locking means.
FIG. 16 is a cross-sectional plan view showing a state where another lock unit is locked.
FIG. 17 is a longitudinal sectional view thereof.
FIG. 18 is a longitudinal sectional view showing a final mounting state.
FIG. 19 is a plan sectional view of a mounting portion of a bracket according to a second embodiment.
FIG. 20 is a longitudinal sectional view of a conventional example.
[Explanation of symbols]
10. Male housing
12. Small food section
14S, 14L ... male terminal
20 ... Mating end face
23 ... locking part
30 ... female housing
32A ... deep edge of (large hood part 32)
34S, 34L ... female terminal
40 ... Mating end face
43… Lock arm
48: Locked surface
55… Seal ring
58… Flange
60 ... Bracket
62 ... R portion (of the bracket 60) (cam means)
65 ... Mounting part
66 ... insertion passage
70… Lock piece
75… Detection groove
78 Detector
80 ... another locking means
60A… Bracket
78A… Detector
84 ... relief recess

Claims (3)

それぞれに端子金具が装着された一対のハウジングのうちのいずれか一方には、ロックアームが弾性的な傾動可能に設けられ、両ハウジングはロックアームを傾動させつつ嵌合されて、所定量嵌合すると前記ロックアームが復動して他方のハウジングに設けられた係止部に係止するとともに、前記両ハウジングの嵌合周面の間にはシールリングが装着されて、このシールリングの外周には、前記両ハウジングが所定量嵌合された場合に、両ハウジングの嵌合方向の対向面の間で挟持可能なフランジが張り出し形成され、このフランジの復元弾力により前記両ハウジングを離反させつつ前記ロックアームと係止部とを密着させるようにしたコネクタにおいて、
前記ロックアームを設けた側とは周方向の反対側の位置には、前記ロックアームと係止部とが密着するまで両ハウジングが離反した状態において、前記反対側の位置における両ハウジングの嵌合端面同士の間隔を、前記ロックアームを設けた側の前記嵌合端面同士の間隔にほぼ等しい状態に保持して両ハウジング間をロック可能な別のロック手段が設けられていることを特徴とするコネクタ。
A lock arm is provided on one of a pair of housings each having a terminal fitting mounted thereon so as to be elastically tiltable, and both housings are fitted while tilting the lock arm, and are fitted by a predetermined amount. Then, the lock arm moves backward and locks with the locking portion provided on the other housing, and a seal ring is mounted between the fitting peripheral surfaces of the two housings. When the two housings are fitted to each other by a predetermined amount, a flange that can be sandwiched between opposing surfaces in the fitting direction of the two housings is formed so as to protrude. In a connector in which the lock arm and the locking portion are brought into close contact,
At a position on the opposite side of the circumferential direction from the side on which the lock arm is provided, in a state where the two housings are separated from each other until the lock arm and the locking portion are in close contact with each other, the two housings are fitted at the opposite side position. Another locking means is provided which is capable of holding the gap between the end faces substantially equal to the gap between the fitting end faces on the side where the lock arm is provided and locking the two housings. connector.
いずれか一方のハウジングにおける前記ロックアームを設けた側とは周方向の反対側の外面には、相手部材に取り付けるためのブラケットを両ハウジングの嵌合方向と交差する方向に挿通可能な挿通路が設けられるとともに、他方のハウジングには、前記両ハウジングの嵌合に伴い前記挿通路を横切って移動可能な検知部が設けられることで前記別のロック手段が形成されており、前記ロックアームと係止部とが密着するまで両ハウジングが離反した状態において、前記挿通路を設けた側における両ハウジングの嵌合端面同士の間隔が、前記ロックアームを設けた側の前記嵌合端面同士の間隔にほぼ等しくなって初めて、前記検知部が前記挿通路を横切って通過するように設定され、この挿通路に挿通されたブラケットが前記検知部の移動方向の後面に抜け止め状に係止する構成となっていることを特徴とする請求項1記載のコネクタ。On an outer surface of one of the housings, which is opposite to the side on which the lock arm is provided, in a circumferential direction, an insertion passage through which a bracket for attaching to a mating member can be inserted in a direction intersecting the fitting direction of the two housings is provided. In addition, the other housing is provided with a detecting portion movable across the insertion passage as the two housings are fitted, thereby forming another locking means. In a state in which the two housings are separated from each other until the stopper comes into close contact, the distance between the fitting end faces of the two housings on the side where the insertion passage is provided is equal to the distance between the fitting end faces on the side where the lock arm is provided. The detection unit is set to pass across the insertion passage only when they are substantially equal to each other, and the bracket inserted into the insertion passage is used to move the detection unit. Connector according to claim 1, characterized in that it is configured to lock after stopping shaped escape to the surface of. 前記検知部と前記ブラケットとの間には、前記検知部が前記挿通路を通過する手前に留まっていた場合に、前記ブラケットの挿入に伴い前記検知部を通過位置まで移動させるカム手段が形成されていることを特徴とする請求項2記載のコネクタ。A cam unit is formed between the detection unit and the bracket, the cam unit moving the detection unit to a passing position with the insertion of the bracket when the detection unit stays short of passing through the insertion passage. 3. The connector according to claim 2, wherein
JP2002169595A 2002-06-11 2002-06-11 connector Expired - Fee Related JP3928491B2 (en)

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Cited By (10)

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JP2008186646A (en) * 2007-01-29 2008-08-14 Sumitomo Wiring Syst Ltd Connector
WO2014174883A1 (en) * 2013-04-26 2014-10-30 住友電装株式会社 Connector
KR101869542B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869545B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869540B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869541B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869543B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869546B1 (en) * 2018-03-15 2018-07-20 주식회사 경신 Waterproof connector
KR101869544B1 (en) * 2018-03-15 2018-07-23 주식회사 경신 Waterproof connector
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008186646A (en) * 2007-01-29 2008-08-14 Sumitomo Wiring Syst Ltd Connector
WO2014174883A1 (en) * 2013-04-26 2014-10-30 住友電装株式会社 Connector
JP2014216260A (en) * 2013-04-26 2014-11-17 住友電装株式会社 Connector
US9705236B2 (en) 2013-04-26 2017-07-11 Sumitomo Wiring Systems, Ltd. Connector with seal ring having ear-like protruding portions
KR101869542B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869545B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869540B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869541B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869543B1 (en) * 2018-03-15 2018-06-20 주식회사 경신 Waterproof connector
KR101869546B1 (en) * 2018-03-15 2018-07-20 주식회사 경신 Waterproof connector
KR101869544B1 (en) * 2018-03-15 2018-07-23 주식회사 경신 Waterproof connector
KR20230120392A (en) * 2022-02-09 2023-08-17 (주)우주일렉트로닉스 Waterproof Connector
KR102677631B1 (en) * 2022-02-09 2024-06-25 (주)우주일렉트로닉스 Waterproof Connector

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