JP4783518B2

JP4783518B2 - Coupling device

Info

Publication number: JP4783518B2
Application number: JP2001137594A
Authority: JP
Inventors: 浩士中村; 章堀本
Original assignee: Sakura Rubber Co Ltd
Current assignee: Sakura Rubber Co Ltd
Priority date: 2001-05-08
Filing date: 2001-05-08
Publication date: 2011-09-28
Anticipated expiration: 2021-05-08
Also published as: JP2002333088A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば消防ホース、液体輸送ホース等のホース類を相互に接続、またはホースとポンプその他の機器とを接続するための結合器具に関する。さらに本発明を特定すれば、本発明は雌雄の区別のない一対の同一の構造の結合器具本体から構成された結合器具に関する。
【０００２】
【従来の技術】
一般に、ホース類、例えば消防ホースの結合金具には差し込み形のものがあり、このような差し込み形の結合金具は一対の結合金具本体が互いに軸方向に嵌合して係止結合される構造のものである。このような差し込み形の結合金具は、例えば日本工業規格ＪＩＳＢ９９１１に規定されているものあり、このような結合金具は「町野式金具」と称されて汎用されている。
【０００３】
このような差し込み形の結合金具は、簡単な装置で結合および結合解除ができ、操作の迅速性と確実性を要求される消防ホースの結合金具としては好ましい特性を有している。
【０００４】
しかし、従来の差し込み形の結合金具は、結合される一対の結合金具本体に雌雄の区別があり、一方が雄金具、他方が雌金具として構成されており、雄金具同士、雌金具同士は結合できない。このため、例えば消火作業の際に、複数の消防ホースを延ばして互いに結合する際に、誤って雄金具同志、または雌金具同志が対応するように消防ホースを延ばしてしまう可能性があり、消火作業の迅速性、確実性の点からこのような可能性を排除することが好ましい。また、従来の結合金具は、構造の相違する雄金具と雌金具の２種類の金具を製造しなければならず、製造コストが高くなる不具合があった。
【０００５】
そこで、本出願人は、前述のような差し込み形の結合金具の問題を解消した、雌雄の区別のない一対の同一の構造の結合金具本体から構成された結合金具を開発し、例えば特許第３１０７５０７号として登録されている。
【０００６】
【発明が解決しようとする課題】
しかしながら、特許第３１０７５０７号は、例えばアルミニウム等の無垢の金属材料を４軸のマシニングセンター等の切削加工によって形成されている。従って、強度的には優れているものの、重量があるとともに、材料費、加工費が嵩むという事情がある。
【０００７】
本発明は、前記事情に着目してなされたもので、その目的とするところは、雌雄の区別がなく、同一構造の一対の結合器具本体から構成され、雌雄の区別なく任意に結合することができ、また結合、結合解除の操作が簡単であるとともに、軽量で取り扱いが容易であるとともに、材料費、加工費を大幅に削減することができる結合器具を提供するものである。
【０００８】
【課題を解決するための手段】
前記目的を達成するために、請求項１は、同一構造の一対の平板型結合器具であって、前記結合器具は、同一構造の一対の結合器具本体を有し、前記結合器具本体は、板状体から作られ、該結合器具本体の前端に横方向に配置されて前方に突出する複数の嵌合凸部と、これら嵌合凸部の相互間に設けられた嵌合凹部とを備え、前記一対の結合器具本体の嵌合凸部と嵌合凹部は互いに相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合可能であり、前記各嵌合凸部の一側には、前記板状体の部分を折り曲げて嵌合凹部内に突出するとともに前記一対の結合器具本体の嵌合凸部と嵌合凹部とが相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合したときに互いに係止可能な係止部を形成し、前記各嵌合凸部の他側には、前記板状体の部分を円弧状に湾曲して前記嵌合凹部内に突出する弾性変形可能な押圧部を形成し、前記一対の結合器具本体の嵌合凸部と嵌合凹部とを互いに相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合したときに前記押圧部相互が弾性的に接したときの押圧部の反発力によって前記係止部相互が係止して一対の結合器具本体が結合されることを特徴とする。
【０００９】
請求項２は、同一構造の一対の円筒型結合器具であって、前記結合器具は、同一構造の円筒状の一対の結合器具本体を有し、前記結合器具本体は、板状体から作られ、該結合器具本体の前端に周方向に配置されて前記結合器具本体の軸方向に突出する複数の嵌合凸部と、これら嵌合凸部の相互間に設けられた嵌合凹部とを備え、前記一対の結合器具本体の嵌合凸部と嵌合凹部は互いに相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合可能であり、前記嵌合凸部の一側には、前記板状体の部分を折り曲げて前記結合器具本体の周方向に向かって嵌合凹部内に突出するとともに前記一対の結合器具本体の嵌合凸部と嵌合凹部とが相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合したときに互いに係止可能な係止部を形成し、前記嵌合凸部の他側には、前記板状体の部分を円弧状に湾曲して前記嵌合凹部内に円弧状に突出する弾性変形可能な押圧部を形成し、前記一対の結合器具本体の嵌合凸部と嵌合凹部とを互いに相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合したときに前記押圧部相互が弾性的に接したときの押圧部の反発力によって前記係止部相互が係止して一対の結合器具本体が結合されることを特徴とする。
【００１０】
請求項３は、同一構造の一対の円筒型結合器具であって、前記結合器具は、ホース等の管状体の端部に結合される円筒体と、この円筒体の外周にそれぞれ設けられ、板状体から作られた同一構造の円筒状の一対の結合器具本体と、を有し、前記結合器具本体は、板状体から作られ、該結合器具本体の前端面に周方向に配置されて前記結合器具本体の軸方向に突出する複数の嵌合凸部と、これら嵌合凸部の相互間に設けられた嵌合凹部とを備え、前記一対の結合器具本体の嵌合凸部と嵌合凹部は互いに相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合可能であり、前記各嵌合凸部の一側には、前記板状体の部分を折り曲げて前記結合器具本体の周方向に向かって嵌合凹部内に突出するとともに前記一対の結合器具本体の嵌合凸部と嵌合凹部とが相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合したときに互いに係止可能な係止部を形成し、前記嵌合凸部の他側には、前記板状体の部分を円弧状に湾曲して前記嵌合凹部内に円弧状に突出する弾性変形可能な押圧部を形成し、前記一対の結合器具本体の嵌合凸部と嵌合凹部とを互いに相手側の結合器具本体の嵌合凹部と嵌合凸部に嵌合したとき、前記押圧部相互が弾性的に接したときの反発力によって前記係止部相互が係止して一対の結合器具本体が結合されて前記円筒体相互が端面相互で突合わせ結合されることを特徴とする。
【００１１】
請求項４は、請求項１に記載の結合器具において、前記結合器具本体は、該結合器具本体から前方に直線状に突出する帯状体を有し、該帯状体の基端部を折曲して前記係止部を形成し、前記帯状体の中途部を円弧状に湾曲して前記押圧部を形成するとともに、前記帯状体の先端部は、前記結合器具本体の基端部に固定されていることを特徴とする。
【００１２】
請求項５は、請求項２または請求項３に記載の結合器具において、前記結合器具本体は、該結合器具本体から前方に円弧状に突出する帯状体を有し、該帯状体の基端部を折曲して前記係止部を形成し、前記帯状体の中途部を前記結合器具本体の周方向に沿って円弧状に湾曲して前記押圧部を形成するとともに前記帯状体の先端部は結合器具本体の基端部に固定されていることを特徴とする。
【００１３】
請求項６は、請求項１〜３のいずれかに記載の前記結合器具本体は、薄板金属板を打抜き、曲げ加工によって形成されていることを特徴とする。
【００１４】
請求項７は、請求項１〜３のいずれかに記載の前記結合器具本体は、合成樹脂材料によって一体に成形されていることを特徴とする。
【００１５】
このような結合器具は、一対の結合器具本体が同一の構造であり、雌雄の区別なく任意に結合することができる。また、前記嵌合凸部と嵌合凹部とを互いに軸方向に嵌合することにより、これらが互いに係止されてこの一対の結合器具本体が結合されるので、操作が容易である。また、これら一対の結合器具本体は同一の構造のものでかつ構造が簡単であり、信頼性が高いとともに製造コストも低減することができる。
【００１６】
また、前記結合器具本体を、薄板金属板を打抜き、曲げ加工によって形成することにより、軽量であるとともに、材料費が大幅に削減できる。また、結合器具本体を合成樹脂材料によって一体に成形することにより、軽量であるとともに、大量生産に適し、大幅なコストダウンを図ることができる。
【００１７】
【発明の実施の形態】
以下、本発明の各実施の形態を図面に基づいて説明する。
【００１８】
図１〜図３は第１の実施形態を示し、図１は平板型結合器具の展開図、図２は結合状態の平面図、図３は組立て状態の斜視図である。
【００１９】
図１に基づいて展開状態を説明すると、１は材料としての板状体、例えば矩形状のばね鋼等の薄板金属板であり、１ａは一方の結合器具本体２ａを形成する平板であり、１ｂは他方の結合器具本体２ｂを形成する平板である。両平板１ａ，１ｂは同一形状であるため、その一方について説明すると、長方形状の基板部３を有しており、説明の便宜上、長辺部４の一側縁を前端４ａ、反対側縁を後端４ｂとし、両端縁を短辺部４ｃとする。そして、長辺部４の前端４ａには横方向に等間隔に４個の成形部５が設けられている。なお、斜線の部分は打抜き開口部である。また、山折り線は破線、谷折り線は点線、切断線は実線でそれぞれ図示している。
【００２０】
４個の成形部５は、同一形状であり、長辺部４の前端４ａには山折り線６ａを介して正方形の第１のフラップ６が設けられ、この第１のフラップ６の横幅方向の中間部にはスリット６ｂが設けられている。第１のフラップ６の左隣には長辺部４の前端４ａから前方に突出する帯状片７が設けられている。
【００２１】
帯状片７の基端部には前端４ａと同一位置に第１の切込み線７ａが設けられている。さらに、帯状片７の基端部には長手方向と直交する方向に山折り線７ｂと谷折り線７ｃが平行に設けられている。
【００２２】
帯状片７の左隣には前端４ａから前方に突出する突出片８が設けられ、この突出片８は帯状片７と隣接する側に垂直線８ａを有し、反対側に傾斜線８ｂを有している。さらに、突出片８の先端部には谷折り線８ｃを介して長方形状の第２のフラップ８ｄが連設されている。第２のフラップ８ｄには谷折り線８gが設けられている。また、突出片８の基端部は垂直線８ａ上の谷折り線８ｅを介して帯状片７と連設されている。この谷折り線８ｅの延長線上には第２の切込み線８ｆが設けられ、この第２の切込み線８ｆによって突出片８及び第２のフラップ８ｄが隣接する帯状片７と切り離されている。
【００２３】
このように形成された成形部５の外郭及び切込み線は打抜き加工、折り線の曲げは板金加工によって製作することができ、その後、結合部をスポット溶接することによって組み立てることができる。
【００２４】
次に、組立て方法について説明する。
【００２５】
▲１▼各成形部５の第１のフラップ６を山折り線６ａに沿って基板部３に対して直角に折曲する。
【００２６】
▲２▼帯状片７の基端部を谷折り線８ｅに沿って突出片８に対して直角に折曲すると、突出片８が帯状片７の基端部によって補強され、曲げ剛性が高まる。
【００２７】
▲３▼第２のフラップ８ｄを谷折り線８ｃに沿って突出片８に対して直角に折曲する。
【００２８】
▲４▼帯状片７の基端部の山折り線７ｂと谷折り線７ｃをそれぞれ略直角に折曲する。
【００２９】
▲５▼帯状片７の中途部を突出片８方向に円弧状に湾曲して第２のフラップ８ｄに接合するとともに、その先端部を第１のフラップ６の切込み線６ｂに差し込む。
【００３０】
▲６▼帯状片７の中途部と第２のフラップ８ｄとの接合部をスポット溶接するとともに、帯状片７の先端部と第１のフラップ６との接合部をスポット溶接すると完成する。
【００３１】
図２は組み立てられた一対の結合器具本体２ａと２ｂとを結合した状態を示し、基板部３には突出片８によって４個の嵌合凸部１１が形成され、これら嵌合凸部１１の相互間に嵌合凹部１２が形成される。また、帯状片７によって嵌合凹部１２内に嘴状に突出する係止部１３が形成されるとともに、嵌合凹部１２内に円弧状に突出する押圧部１４が形成される。
【００３２】
前述のように構成された同一構造の結合器具本体２ａ，２ｂは、１枚の薄板金属板によって形成され、帯状片７を折曲して係止部１３が形成され、また円弧状に湾曲されて押圧部１４が形成されるため、係止部１３及び押圧部１４は弾性変形可能である。従って、一対の結合器具本体２ａ，２ｂの嵌合凸部１１と嵌合凹部１２は互いに相手側の結合器具本体２ａ，２ｂの嵌合凹部１２と嵌合凸部１１に嵌合可能である。
【００３３】
そして、一対の結合器具本体２ａ，２ｂの嵌合凸部１１と嵌合凹部１２とを互いに相手側の結合器具本体２ａ，２ｂの嵌合凹部１２と嵌合凸部１１に嵌合したとき、押圧部１４相互が弾性的に接合し、その反発力によって係止部１３相互が弾性的に係止して一対の結合器具本体２ａ，２ｂが結合される。また、結合を解除する場合には、押圧部１４をその付勢力に抗して圧縮する方向に一対の結合器具本体２ａ，２ｂを横方向に移動させることにより、係止部１３相互の係止が解除され、結合器具本体２ａと２ｂとを分離することができる。従って、一対の結合器具本体２ａ，２ｂの結合・分離がワッタッチで行えるという効果がある。
【００３４】
従って、図３に示すように、結合器具本体２ａ，２ｂ（一方のみ図示）の基板部３に例えば複数本の配管１５を取付金具１６によって固定し、結合器具本体２ａ，２ｂを図２に示すように結合することにより、複数本の配管１５を同時に着脱することができる。また、配管１５に限らず、電線等のコネクタの着脱にも利用できる。
【００３５】
なお、前記第１の実施形態においては、結合器具本体２ａ，２ｂに４個の係合凸部１１と係合凹部１２を設けたが、２個以上であればよい。
【００３６】
図４及び図５は第２の実施形態を示し、図４は円筒型結合器具の展開図、図５は組立て状態の斜視図である。
【００３７】
図４に基づいて展開状態を説明すると、２１は材料としての板状体、例えば矩形状のばね鋼等の薄板金属板であり、２１ａは一方の結合器具本体２２ａを形成する平板であり、２１ｂは他方の結合器具本体２２ｂを形成する平板である。両平板２１ａ，２１ｂは同一形状であるため、その一方について説明すると、長方形状の基板部２３を有しており、説明の便宜上、長辺部２４の一側縁を前端２４ａ、左側縁を後端２４ｂとし、両端縁を短辺部２４ｃとする。そして、長辺部２４の前端２４ａには横方向に等間隔に３個の成形部２５が設けられている。
【００３８】
３個の成形部２５は、同一形状であり、長辺部２４の前端２４ａから前方に向かって、かつ右側に湾曲する帯状片２７が設けられている。帯状片２７の基端部には前端２４ａと同一位置に第１の切込み線２７ａが設けられている。さらに、帯状片２７の基端部から湾曲部２７ｄにかかる途中には長手方向と直交する方向に山折り線２７ｂが設けられ、この山折り線２７ｂと離間して谷折り線２７ｃが設けられている。この谷折り線２７ｃは湾曲部２７ｄの曲率中心方向に向かって傾斜して設けられている。
【００３９】
帯状片２７の左隣には前端２４ａから前方に突出する突出片２８が設けられ、この突出片２８は帯状片２７と隣接する側に垂直線２８ａを有し、反対側に傾斜線２８ｂを有している。さらに、突出片２８の先端部には谷折り線２８ｃを介して長方形状の第１のフラップ２８ｄが連設されている。第１のフラップ２８ｄには谷折り線２８gが設けられている。また、突出片２８の基端部は垂直線２８ａ上の谷折り線２８ｅを介して帯状片２７と連設されている。この谷折り線２８ｅの延長線上には第２の切込み線２８ｆが設けられ、この第２の切込み線２８ｆによって突出片２８及び第１のフラップ２８ｄが隣接する帯状片２７と切り離されている。
【００４０】
さらに、突出片２８の左隣には長辺部４の前端４ａに沿う山折り線２６ａを介して正方形の第２のフラップ２６が設けられ、この第２のフラップ２６の横幅方向の中間部には帯状片２７の先端部が差し込まれるスリット２６ｂが設けられている。
【００４１】
このように形成された成形部２５の外郭及び切込み線は打抜き加工、折り線の曲げは板金加工によって製作することができ、その後、結合部をスポット溶接することによって組み立てることができる。
【００４２】
次に、組立て方法について説明する。
【００４３】
▲１▼各成形部２５の第２のフラップ２６を山折り線２６ａに沿って基板部２３に対して直角に折曲する。
【００４４】
▲２▼帯状片２７の基端部を谷折り線２８ｅに沿って突出片２８に対して直角に折曲すると、突出片２８が帯状片２７の基端部によって補強され、曲げ剛性が高まる。
【００４５】
▲３▼第１のフラップ２８ｄを谷折り線２８ｃに沿って突出片２８に対して直角に折曲する。
【００４６】
▲４▼帯状片２７の基端部の山折り線２７ｂと谷折り線２７ｃをそれぞれ略直角に折曲する。
【００４７】
▲５▼基板部２３を円筒状に丸め、最も右側の第２のフラップ２６を最も左側の突出片２８と隣接させた状態で、両端部２３ｃを接合し、この接合部をスポット溶接する。
【００４８】
▲６▼帯状片２７の中途部を基板部２３の周方向に沿わせ、突出片２８方向に円弧状に湾曲して第１のフラップ２８ｄに接合するとともに、その先端部を第２のフラップ２６の切込み線２６ｂに差し込む。
【００４９】
▲７▼帯状片２７の中途部と第１のフラップ２８ｄとの接合部をスポット溶接するとともに、帯状片２７の先端部と第２のフラップ２６との接合部をスポット溶接すると完成する。
【００５０】
図５は組み立てられた一方の結合器具本体２２ａを示し、基板部２３には突出片２８によって３個の嵌合凸部３１が形成され、これら嵌合凸部３１の相互間に嵌合凹部３２が形成される。また、帯状片２７によって嵌合凹部３２内に嘴状に突出する係止部３３が形成されるとともに、嵌合凹部３２内に円弧状に突出する押圧部３４が形成される。
【００５１】
前述のように構成された同一構造の結合器具本体２２ａ，２２ｂは、１枚の薄板金属板によって形成され、帯状片２７を折曲して係止部３３が形成され、また円弧状に湾曲されて押圧部３４が形成されるため、係止部３３及び押圧部３４は弾性変形可能である。従って、一対の結合器具本体２２ａ，２２ｂの嵌合凸部３１と嵌合凹部３２は互いに相手側の結合器具本体２２ａ，２２ｂの嵌合凹部３２と嵌合凸部３１に嵌合可能である。
【００５２】
そして、一対の結合器具本体２２ａ，２２ｂの嵌合凸部３１と嵌合凹部３２とを互いに相手側の結合器具本体２２ａ，２２ｂの嵌合凹部３２と嵌合凸部３１に嵌合したとき、押圧部３４相互が弾性的に接合し、その反発力によって係止部３３相互が弾性的に係止して一対の結合器具本体２２ａ，２２ｂが結合される。また、結合を解除する場合には、押圧部３４をその付勢力に抗して圧縮する方向に一対の結合器具本体２２ａ，２２ｂを周方向に回すことにより、係止部３３相互の係止が解除され、結合器具本体２２ａと２２ｂとを分離することができる。従って、一対の結合器具本体２２ａ，２２ｂの結合・分離がワッタッチで行えるという効果がある。
【００５３】
従って、図５に示すように、結合器具本体２２ａ，２２ｂ（一方のみ図示）の円筒部３５に２点鎖線で示すように、円筒体３６を嵌合し、結合器具本体２２ａ，２２ｂを結合することにより、円筒体３５相互を同時に着脱することができる。また、円筒体３６の端面にシール材を設けることにより、円筒体３６相互を水密にシールすることができ、消防ホースや配管の接続にも利用できる。
【００５４】
なお、前記第２の実施形態においては、結合器具本体２２ａ，２２ｂに３個の係合凸部３１と係合凹部３２を設けたが、２個以上であればよい。
【００５５】
また、第２の実施形態においては、基板部２３に第２のフラップ２６を設け、帯状体２７の先端部をスリット２６ｂに差し込んで固定したが、図６に示すように、帯状体２７の先端部に折り目線３７ａを介して接続片３７を設け、接続片３７を円筒部３５の内面に接合固定してもよい。このように構成することにより、円筒部３５の内部に第２のフラップ２６が突出することはなく、円筒部３５の内部構造を簡略化できる。
【００５６】
【発明の効果】
以上説明したように、本発明の結合器具は、雌雄の区別がないので任意に結合でき、結合作業が容易であるとともに、軽量で取り扱いが容易であるとともに、材料費、加工費が大幅に削減することができる。従って、配管相互、電気コネクタ相互の結合器具として利用できる。
【図面の簡単な説明】
【図１】本発明の第１の実施形態を示し、平板型結合器具の展開図。
【図２】同実施形態の結合状態の平面図。
【図３】同実施形態の組立て状態の斜視図。
【図４】本発明の第２の実施形態を示し、円筒型結合器具の展開図。
【図５】同実施形態の組立て状態の斜視図。
【図６】同実施形態の変形例を示す展開図。
【符号の説明】
１…板状体
２ａ，２ｂ…結合器具本体
１１…嵌合凸部
１２…嵌合凹部
１３…係止部
１４…押圧部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coupling device for connecting hoses such as a fire hose and a liquid transport hose to each other or connecting a hose and a pump or other equipment. If this invention is specified further, this invention relates to the coupling device comprised from a pair of coupling device main body of the same structure without sex distinction.
[0002]
[Prior art]
In general, there are plug-in fittings for hoses such as fire hose, and such plug-in fittings have a structure in which a pair of coupling fitting bodies are engaged and locked together in the axial direction. Is. Such a plug-in type coupling metal fitting is specified in, for example, Japanese Industrial Standard JIS B 9911. Such a coupling metal fitting is referred to as a “machino-type metal fitting” and is widely used.
[0003]
Such plug-in type fittings can be coupled and uncoupled with a simple device, and have favorable characteristics as a fitting for fire fighting hoses that require quick and reliable operation.
[0004]
However, the conventional plug-type fittings have a male / female distinction between the pair of fittings to be joined. One is a male fitting and the other is a female fitting. Can not. For this reason, for example, during fire extinguishing work, when a plurality of fire hoses are extended and joined together, there is a possibility that the fire hoses may be accidentally extended so that male fittings or female fittings correspond to each other. It is preferable to eliminate such a possibility from the viewpoint of speed of operation and certainty. In addition, the conventional coupling metal has to be manufactured with two types of metal fittings, ie, a male fitting and a female fitting, which have different structures.
[0005]
Therefore, the present applicant has developed a coupling metal fitting composed of a pair of coupling metal bodies having the same structure without distinction between males and females, which solves the problem of the insertion-type coupling metal fitting as described above, for example, Japanese Patent No. 3107507. It is registered as a number.
[0006]
[Problems to be solved by the invention]
However, in Japanese Patent No. 3107507, a solid metal material such as aluminum is formed by cutting such as a 4-axis machining center. Therefore, although it is excellent in strength, there is a situation that it is heavy and material costs and processing costs increase.
[0007]
The present invention has been made by paying attention to the above circumstances, and the object thereof is to distinguish between males and females and to be composed of a pair of coupling device bodies having the same structure, and to be arbitrarily combined without distinguishing between males and females. Further, the present invention provides a coupling device that can be coupled and uncoupled easily, is lightweight and easy to handle, and can significantly reduce material costs and processing costs.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, claim 1 is a pair of flat plate coupling devices having the same structure , wherein the coupling device has a pair of coupling device bodies having the same structure, and the coupling device body is a plate. A plurality of fitting protrusions that are made from a body and are disposed laterally at the front end of the coupling device main body and project forward, and fitting depressions provided between the fitting protrusions, The fitting convex part and the fitting concave part of the pair of coupling instrument main bodies can be fitted into the mating concave part and the fitting convex part of the mating coupling instrument main body, and one side of each fitting convex part is The plate-like body portion is bent and protrudes into the fitting recess, and the fitting projection and the fitting recess of the pair of coupling device bodies are the fitting recess and the fitting projection of the mating coupling device body. interdigitate to form a lockable locking portion when the on the the other side of the fitting convex portions, arcuate portions of said plate-like body Curved to form an elastically deformable pressing portion protruding into the fitting recess, the mating recess in the coupling instrument body of the fitting projections and fitting recesses and the mutually mating of the pair of fastening instrument body and When the fitting portions are fitted to each other, the engaging portions are locked by a repulsive force of the pressing portions when the pressing portions are in elastic contact with each other, and a pair of coupling device bodies are combined. And
[0009]
Claim 2 is a pair of cylindrical coupling devices having the same structure , wherein the coupling device has a pair of cylindrical coupling devices having the same structure, and the coupling device body is made of a plate-like body. A plurality of fitting projections arranged in the circumferential direction at the front end of the coupling device main body and projecting in the axial direction of the coupling device main body, and fitting depressions provided between the fitting projections. The fitting convex part and the fitting concave part of the pair of coupling instrument main bodies can be fitted to the mating concave part and the fitting convex part of the mating coupling instrument main body, and one side of the fitting convex part is The plate-like body portion is bent and protrudes into the fitting recess in the circumferential direction of the coupling device body, and the fitting projection and the fitting recess of the pair of coupling device bodies are the mating coupling device. forming a mutually lockable locking portion when fitted into the mating recess and the fitting convex portion of the body, the other of the fitting convex portion , Said plate-like body portion and is curved in an arc shape to form an elastically deformable pressing portions projecting arcuately into the fitting in the recess of fitting the fitting protrusion of the pair of fastening instrument body When the mating recess is fitted to the mating recess and the mating projection of the mating coupling device body, the pressing portions repel each other due to the repulsive force of the pressing portions. The pair of coupling device main bodies are coupled by locking.
[0010]
A third aspect of the present invention is a pair of cylindrical coupling devices having the same structure, wherein the coupling devices are respectively provided on a cylindrical body coupled to an end portion of a tubular body such as a hose, and an outer periphery of the cylindrical body. A pair of cylindrical coupling device bodies having the same structure made from a cylindrical body, and the coupling device body is made of a plate-like body and arranged circumferentially on the front end surface of the coupling device body A plurality of fitting projections protruding in the axial direction of the coupling device main body, and fitting concave portions provided between the fitting projections, and fitting with the fitting projections of the pair of coupling device bodies The mating recesses can be fitted into the mating recesses and the mating projections of the mating coupling device main body, and the coupling tool is formed by bending a portion of the plate-like body on one side of each of the mating projections. and the fitting projection and the fitting depression of the pair of coupling fixture body with protruding engaging the recess toward the circumferential direction of the body Forming a mutually lockable locking portion when fitted into the mating recess and the fitting protrusion of the mating fastening instrument body, the other side of the fitting convex portion, the portion of the plate-like body Is formed into an elastically deformable pressing portion protruding in an arc shape in the fitting concave portion, and the fitting convex portion and the fitting concave portion of the pair of coupling device main bodies are coupled to each other. when fitted into the fitting recess and the fitting convex portion of the instrument body, a pair of fastening instrument body the locking portion mutually locked by the repulsive force when said pressing part mutually to contact resiliently is coupled The cylindrical bodies are butt-coupled at the end faces.
[0011]
According to a fourth aspect of the present invention, in the coupling device according to the first aspect, the coupling device main body has a belt- like body protruding linearly forward from the coupling device main body, and the base end portion of the belt- like body is bent. The locking portion is formed, and the middle portion of the belt- like body is curved in an arc shape to form the pressing portion, and the distal end portion of the belt-like body is fixed to the base end portion of the coupling instrument body. It is characterized by being.
[0012]
5. The coupling device according to claim 2 or 3, wherein the coupling device body has a belt- like body protruding forward in an arc shape from the coupling device body, and a base end portion of the belt- like body. Is bent to form the locking portion, and the middle portion of the belt-like body is curved in an arc shape along the circumferential direction of the coupling device body to form the pressing portion, and the tip of the belt-like body is It is fixed to the base end part of the coupling instrument main body.
[0013]
A sixth aspect of the present invention is characterized in that the coupling device main body according to any one of the first to third aspects is formed by punching a thin metal plate and bending it.
[0014]
A seventh aspect of the present invention is characterized in that the coupling device main body according to any one of the first to third aspects is integrally formed of a synthetic resin material.
[0015]
In such a coupling device, the pair of coupling device bodies have the same structure, and can be arbitrarily coupled without distinction between males and females. Further, by fitting the fitting convex portion and the fitting concave portion in the axial direction, they are locked to each other and the pair of coupling device main bodies are coupled to each other, so that the operation is easy. In addition, the pair of coupling device main bodies have the same structure and are simple in structure, so that the reliability is high and the manufacturing cost can be reduced.
[0016]
Further, by forming the coupling device main body by punching a thin metal plate and bending it, it is lightweight and material costs can be greatly reduced. In addition, by integrally molding the coupling device main body with a synthetic resin material, it is lightweight, suitable for mass production, and can achieve a significant cost reduction.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
1 to 3 show a first embodiment, FIG. 1 is a developed view of a flat plate-type coupling device, FIG. 2 is a plan view in a coupled state, and FIG. 3 is a perspective view in an assembled state.
[0019]
Referring to FIG. 1, the unfolded state will be described. 1 is a plate-like body as a material, for example, a thin metal plate such as a rectangular spring steel, 1a is a flat plate forming one coupling device body 2a, 1b Is a flat plate forming the other coupling device body 2b. Since both the flat plates 1a and 1b have the same shape, one of the flat plates 1a and 1b has a rectangular substrate portion 3. For convenience of explanation, one side edge of the long side portion 4 is the front end 4a and the opposite side edge is the same. The rear end 4b is used, and both end edges are used as short sides 4c. And, at the front end 4a of the long side part 4, four molding parts 5 are provided at equal intervals in the horizontal direction. The shaded portion is a punching opening. Further, the mountain fold line is indicated by a broken line, the valley fold line is indicated by a dotted line, and the cutting line is indicated by a solid line.
[0020]
The four molded parts 5 have the same shape, and a square first flap 6 is provided on the front end 4a of the long side part 4 via a mountain fold line 6a. A slit 6b is provided in the middle part. A strip 7 protruding forward from the front end 4 a of the long side portion 4 is provided on the left side of the first flap 6.
[0021]
A first cut line 7a is provided at the base end of the strip 7 at the same position as the front end 4a. Further, a mountain fold line 7b and a valley fold line 7c are provided in parallel to the base end portion of the strip 7 in a direction orthogonal to the longitudinal direction.
[0022]
A projecting piece 8 that projects forward from the front end 4a is provided on the left side of the strip 7 and this projecting piece 8 has a vertical line 8a on the side adjacent to the strip 7 and an inclined line 8b on the opposite side. is doing. Furthermore, a rectangular second flap 8d is connected to the tip of the protruding piece 8 via a valley fold line 8c. The second flap 8d is provided with a valley fold line 8g. Moreover, the base end part of the protrusion piece 8 is connected with the strip | belt-shaped piece 7 through the valley fold line 8e on the vertical line 8a. A second cut line 8f is provided on the extended line of the valley fold line 8e, and the projecting piece 8 and the second flap 8d are separated from the adjacent strip-like piece 7 by the second cut line 8f.
[0023]
The outer shape and the cut line of the molded part 5 formed in this way can be manufactured by punching and bending of the fold line can be manufactured by sheet metal processing, and then assembled by spot welding of the joint.
[0024]
Next, the assembly method will be described.
[0025]
(1) The first flap 6 of each molded part 5 is bent at a right angle with respect to the substrate part 3 along the mountain fold line 6a.
[0026]
(2) When the base end of the strip 7 is bent at a right angle with respect to the projecting piece 8 along the valley fold line 8e, the projecting piece 8 is reinforced by the base end of the strip 7 and the bending rigidity is increased.
[0027]
(3) The second flap 8d is bent at a right angle with respect to the protruding piece 8 along the valley fold line 8c.
[0028]
{Circle around (4)} The mountain fold line 7b and the valley fold line 7c at the base end of the strip 7 are bent at substantially right angles.
[0029]
(5) The middle part of the belt-like piece 7 is curved in an arc shape in the direction of the protruding piece 8 and joined to the second flap 8d, and the tip part thereof is inserted into the cut line 6b of the first flap 6.
[0030]
{Circle around (6)} The joint between the middle portion of the strip 7 and the second flap 8d is spot welded, and the joint between the tip of the strip 7 and the first flap 6 is spot welded.
[0031]
FIG. 2 shows a state in which a pair of assembled coupling device main bodies 2a and 2b are joined together, and four fitting projections 11 are formed on the substrate portion 3 by the protruding pieces 8, and the fitting projections 11 A fitting recess 12 is formed between them. Further, the belt-like piece 7 forms a locking portion 13 that protrudes in a hook shape in the fitting recess 12, and a pressing portion 14 that protrudes in an arc shape in the fitting recess 12.
[0032]
The coupling device bodies 2a and 2b having the same structure configured as described above are formed of a single sheet metal plate, and the belt-like piece 7 is bent to form a locking portion 13, and is also curved in an arc shape. Since the pressing portion 14 is formed, the locking portion 13 and the pressing portion 14 can be elastically deformed. Therefore, the fitting convex portion 11 and the fitting concave portion 12 of the pair of coupling device main bodies 2a and 2b can be fitted to the fitting concave portion 12 and the fitting convex portion 11 of the mating coupling device main bodies 2a and 2b.
[0033]
And when the fitting convex part 11 and fitting concave part 12 of a pair of coupling instrument main bodies 2a and 2b are mutually fitted to the fitting concave part 12 and fitting convex part 11 of the other coupling instrument main bodies 2a and 2b, The pressing portions 14 are elastically joined to each other, and the locking portions 13 are elastically locked by the repulsive force, and the pair of coupling device bodies 2a and 2b are coupled. Further, when the coupling is released, the pair of coupling instrument bodies 2a and 2b are moved in the lateral direction in a direction in which the pressing portion 14 is compressed against the urging force, thereby locking the locking portions 13 to each other. Is released, and the coupling instrument bodies 2a and 2b can be separated. Therefore, there is an effect that the pair of coupling instrument bodies 2a and 2b can be coupled / separated with one touch.
[0034]
Therefore, as shown in FIG. 3, for example, a plurality of pipes 15 are fixed to the base plate portion 3 of the coupling device main bodies 2 a and 2 b (only one is shown) by the mounting bracket 16, and the coupling device main bodies 2 a and 2 b are illustrated in FIG. 2. By connecting in this manner, a plurality of pipes 15 can be attached and detached simultaneously. Moreover, it can utilize not only for the piping 15 but for attachment / detachment of connectors such as electric wires.
[0035]
In addition, in the said 1st Embodiment, although the four engagement convex parts 11 and the engagement recessed parts 12 were provided in the coupling instrument main body 2a, 2b, what is necessary is just two or more.
[0036]
4 and 5 show a second embodiment, FIG. 4 is a developed view of a cylindrical coupling device, and FIG. 5 is a perspective view in an assembled state.
[0037]
Referring to FIG. 4, the unfolded state will be described. 21 is a plate-like body as a material, for example, a thin metal plate such as a rectangular spring steel, 21a is a flat plate forming one coupling device body 22a, 21b Is a flat plate forming the other coupling instrument body 22b. Since both the flat plates 21a and 21b have the same shape, one of them will be described. A rectangular substrate portion 23 is provided. For convenience of explanation, one side edge of the long side portion 24 is the front end 24a and the left side edge is the rear side. Let it be the edge 24b, and let both edge be a short side part 24c. The front end 24a of the long side portion 24 is provided with three molding portions 25 at equal intervals in the horizontal direction.
[0038]
The three molded portions 25 have the same shape, and are provided with a strip 27 that curves forward from the front end 24a of the long side portion 24 and curves to the right. A first cut line 27a is provided at the base end of the strip 27 at the same position as the front end 24a. Furthermore, a mountain fold line 27b is provided in a direction perpendicular to the longitudinal direction from the base end portion of the strip 27 to the curved portion 27d, and a valley fold line 27c is provided apart from the mountain fold line 27b. Yes. The valley fold line 27c is provided to be inclined toward the center of curvature of the curved portion 27d.
[0039]
A projecting piece 28 that projects forward from the front end 24a is provided on the left side of the strip 27, and this projecting piece 28 has a vertical line 28a on the side adjacent to the strip 27 and an inclined line 28b on the opposite side. is doing. Furthermore, a rectangular first flap 28d is connected to the tip of the protruding piece 28 via a valley fold line 28c. The first flap 28d is provided with a valley fold line 28g. Further, the base end portion of the protruding piece 28 is connected to the strip-like piece 27 through a valley fold line 28e on the vertical line 28a. A second cut line 28f is provided on the extended line of the valley fold line 28e, and the projecting piece 28 and the first flap 28d are separated from the adjacent strip-like piece 27 by the second cut line 28f.
[0040]
Further, a square second flap 26 is provided on the left side of the projecting piece 28 via a mountain fold line 26 a along the front end 4 a of the long side portion 4. Is provided with a slit 26b into which the tip of the strip 27 is inserted.
[0041]
The outer shape and the cut line of the formed portion 25 formed in this way can be manufactured by punching and bending of the fold line can be manufactured by sheet metal processing, and then can be assembled by spot welding of the joint portion.
[0042]
Next, the assembly method will be described.
[0043]
(1) The second flap 26 of each molding part 25 is bent at a right angle with respect to the substrate part 23 along the mountain fold line 26a.
[0044]
(2) When the base end portion of the strip-shaped piece 27 is bent at a right angle with respect to the projecting piece 28 along the valley fold line 28e, the projecting piece 28 is reinforced by the base end portion of the strip-shaped piece 27 and the bending rigidity is increased.
[0045]
(3) The first flap 28d is bent at a right angle with respect to the protruding piece 28 along the valley fold line 28c.
[0046]
{Circle around (4)} The mountain fold line 27b and the valley fold line 27c at the base end of the strip 27 are bent at substantially right angles.
[0047]
{Circle around (5)} The substrate portion 23 is rounded into a cylindrical shape, and both end portions 23c are joined in a state where the rightmost second flap 26 is adjacent to the leftmost protruding piece 28, and this joined portion is spot welded.
[0048]
(6) The middle part of the belt-like piece 27 is arranged along the circumferential direction of the substrate part 23, curved in an arc shape in the direction of the projecting piece 28 and joined to the first flap 28d, and the tip part thereof is joined to the second flap 26. Is inserted into the cut line 26b.
[0049]
(7) The joint between the middle part of the strip 27 and the first flap 28d is spot-welded, and the joint between the tip of the strip 27 and the second flap 26 is spot-welded.
[0050]
FIG. 5 shows one assembled coupling device main body 22 a, and three fitting convex portions 31 are formed on the base plate portion 23 by the protruding pieces 28, and the fitting concave portion 32 is interposed between the fitting convex portions 31. Is formed. Further, the belt-like piece 27 forms a locking portion 33 that protrudes in a hook shape in the fitting recess 32, and a pressing portion 34 that protrudes in an arc shape in the fitting recess 32.
[0051]
The coupling device main bodies 22a and 22b having the same structure configured as described above are formed of a single sheet metal plate, the band-shaped piece 27 is bent to form a locking portion 33, and the arcuate shape is also curved. Since the pressing portion 34 is formed, the locking portion 33 and the pressing portion 34 can be elastically deformed. Therefore, the fitting convex portion 31 and the fitting concave portion 32 of the pair of coupling device main bodies 22a and 22b can be fitted to the fitting concave portion 32 and the fitting convex portion 31 of the mating coupling device main bodies 22a and 22b.
[0052]
And when the fitting convex part 31 and fitting concave part 32 of a pair of coupling instrument main body 22a, 22b were mutually fitted by the fitting concave part 32 and fitting convex part 31 of the other coupling instrument main body 22a, 22b, The pressing portions 34 are elastically joined to each other, and the locking portions 33 are elastically locked to each other by the repulsive force, so that the pair of coupling instrument bodies 22a and 22b are coupled. Further, when the coupling is released, the pair of coupling instrument main bodies 22a and 22b are rotated in the circumferential direction in a direction in which the pressing portion 34 is compressed against the urging force, so that the locking portions 33 are locked with each other. It is released and the coupling device bodies 22a and 22b can be separated. Therefore, there is an effect that the pair of coupling instrument bodies 22a and 22b can be coupled / separated with one touch.
[0053]
Therefore, as shown in FIG. 5, the cylindrical body 36 is fitted to the cylindrical portion 35 of the coupling instrument main bodies 22a and 22b (only one is shown) to couple the coupling instrument main bodies 22a and 22b. Thus, the cylindrical bodies 35 can be attached and detached simultaneously. Moreover, by providing a sealing material on the end face of the cylindrical body 36, the cylindrical bodies 36 can be sealed together in a watertight manner, and can be used for connecting a fire hose or piping.
[0054]
In the second embodiment, the coupling instrument main bodies 22a and 22b are provided with the three engaging convex portions 31 and the engaging concave portions 32. However, the number may be two or more.
[0055]
Further, in the second embodiment, the second flap 26 is provided on the substrate portion 23, and the tip of the strip 27 is inserted into the slit 26b and fixed. However, as shown in FIG. A connecting piece 37 may be provided in the part via a crease line 37 a, and the connecting piece 37 may be bonded and fixed to the inner surface of the cylindrical part 35. With this configuration, the second flap 26 does not protrude into the cylindrical portion 35, and the internal structure of the cylindrical portion 35 can be simplified.
[0056]
【The invention's effect】
As described above, the coupling device of the present invention can be arbitrarily coupled because there is no distinction between males and females, and the coupling work is easy, lightweight and easy to handle, and material costs and processing costs are greatly reduced. can do. Therefore, it can be used as a coupling device between pipes and electrical connectors.
[Brief description of the drawings]
FIG. 1 is a development view of a flat plate-type connector according to a first embodiment of the present invention.
FIG. 2 is a plan view of a combined state of the embodiment.
FIG. 3 is a perspective view of an assembled state of the embodiment.
FIG. 4 is a development view of a cylindrical coupling device according to a second embodiment of the present invention.
FIG. 5 is an assembled perspective view of the embodiment.
FIG. 6 is a development view showing a modification of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Plate-shaped body 2a, 2b ... Coupling instrument main body 11 ... Fitting convex part 12 ... Fitting concave part 13 ... Locking part 14 ... Pressing part

Claims

A pair of flat plate coupling devices having the same structure,
The coupling device has a pair of coupling device bodies having the same structure,
The coupling device body is made of a plate-like body, and is disposed between the fitting projections and a plurality of fitting projections that are disposed laterally at the front end of the coupling device body and project forward. A fitting concave portion, and the fitting convex portion and the fitting concave portion of the pair of coupling device main bodies can be fitted to the fitting concave portion and the fitting convex portion of the mating coupling device main body,
On one side of each of the fitting projections, the portion of the plate-like body is bent and protrudes into the fitting recess, and the fitting projection and the fitting recess of the pair of coupling device bodies are coupled to each other. A locking portion that can be locked with each other when the fitting concave portion and the fitting convex portion of the instrument body are fitted to each other is formed. On the other side of each of the fitting convex portions , the plate-like body portion is formed in an arc shape. Forming an elastically deformable pressing portion that is curved to protrude into the fitting recess,
When the pressing portions are in elastic contact with each other when the fitting convex portion and the fitting concave portion of the pair of coupling device main bodies are fitted to the fitting concave portion and the fitting convex portion of the mating coupling device main body, respectively. A coupling device, wherein a pair of coupling device bodies are coupled with each other by the repulsive force of the pressing portion .

A pair of cylindrical couplers of the same structure,
The coupling device has a pair of cylindrical coupling device bodies having the same structure,
The coupling device body is made of a plate-like body, and is arranged at a front end of the coupling device body in the circumferential direction and protrudes in the axial direction of the coupling device body, and the fitting projections A fitting concave portion provided between each other, and the fitting convex portion and the fitting concave portion of the pair of coupling device main bodies can be fitted into the fitting concave portion and the fitting convex portion of the mating coupling device main body. The fitting projections are bent on one side to bend the portion of the plate-like body and project into the fitting recesses in the circumferential direction of the coupling device body, and the fitting projections of the pair of coupling device bodies A locking part that can be locked together when the fitting part and the fitting concave part are fitted to the fitting concave part and the fitting convex part of the mating coupler body on the other side, and on the other side of the fitting convex part And forming an elastically deformable pressing portion that curves in a circular arc shape in the plate-like body and protrudes in an arc shape in the fitting recess,
When the pressing portions are in elastic contact with each other when the fitting convex portion and the fitting concave portion of the pair of coupling device main bodies are fitted to the fitting concave portion and the fitting convex portion of the mating coupling device main body, respectively. A coupling device, wherein a pair of coupling device bodies are coupled with each other by the repulsive force of the pressing portion .

A pair of cylindrical couplers of the same structure,
The coupling device includes a cylindrical body coupled to an end portion of a tubular body such as a hose, and a pair of cylindrical coupling device bodies having the same structure , each of which is provided on the outer periphery of the cylindrical body and made of a plate-like body. Have
The coupling instrument body is made of a plate-like body, and is arranged on the front end surface of the coupling instrument body in the circumferential direction and protrudes in the axial direction of the coupling instrument body, and these fitting projections And the fitting projections and fitting recesses of the pair of coupling device bodies can be fitted into the fitting recesses and fitting projections of the mating coupling device body on the other side. On one side of each of the fitting convex portions, the plate-like body portion is bent and protrudes into the fitting concave portion in the circumferential direction of the coupling device body, and the pair of coupling device main bodies are fitted. When the mating convex portion and the fitting concave portion are fitted to the mating concave portion and the fitting convex portion of the mating coupler body, the other side of the fitting convex portion is formed. Is formed with an elastically deformable pressing portion that curves in a circular arc shape in the plate-like body and protrudes in an arc shape in the fitting recess,
When fitted into the fitting recess and the fitting protrusion of the binding instrument body of the fitting projections and fitting recesses and the mutually mating of the pair of fastening instrument body when said pressing part mutually to contact resiliently The coupling device is characterized in that the locking portions are locked together by a repulsive force to couple a pair of coupling device bodies so that the cylindrical bodies are butt-coupled to each other at the end surfaces.

The coupling device main body has a belt-like body that projects linearly forward from the coupling device body , bends the base end portion of the belt- like body to form the locking portion, and the middle portion of the belt-like body 2. The coupling device according to claim 1, wherein the pressing portion is formed by curving an arc in a circular arc shape, and a distal end portion of the band-shaped body is fixed to a proximal end portion of the coupling device main body.

The coupling instrument body has a band-like body protruding in an arc shape forward from the coupling instrument body , the base end portion of the band-like body is bent to form the locking portion, and the middle part of the band-like body The curved portion is curved in an arc shape along the circumferential direction of the coupling device main body to form the pressing portion, and the distal end portion of the band-shaped body is fixed to the proximal end portion of the coupling device main body. A coupling device according to claim 2 or claim 3.

The coupling device according to claim 1, wherein the coupling device main body is formed by punching a thin metal plate and bending.

The said coupling instrument main body is integrally shape | molded by the synthetic resin material, The coupling instrument in any one of Claims 1-3 characterized by the above-mentioned.