JP4339610B2

JP4339610B2 - Liquid injection adapter

Info

Publication number: JP4339610B2
Application number: JP2003047933A
Authority: JP
Inventors: 浩二野見山; 裕司小松崎; 敬信関; 潤也高見澤
Original assignee: Daizo Corp
Current assignee: Daizo Corp
Priority date: 2003-02-25
Filing date: 2003-02-25
Publication date: 2009-10-07
Anticipated expiration: 2023-02-25
Also published as: CN100408199C; JP2004261657A; CN1753732A

Description

【０００１】
【発明の属する技術分野】
本発明は、洗浄液、塗料、塗装液、ムース剤、防錆剤、錆黒化液状体などの各種処理液、その他各種の油、各種の水或いは水溶液など、各種の液状体を噴射させるのに用いる液状体噴射器具に関し、詳しくはエアガン等の圧縮ガス供給手段の噴射口に接続しその圧縮ガスを利用して液状体を噴射させる液状体噴射アダプターに関する。
【０００２】
【従来の技術】
特許文献１には、吹き付け塗装用スプレーガンの塗料容器に樹脂性ジャバラ容器を用いて密閉式スプレーガンを構成したものが開示されている。
【０００３】
【特許文献１】
特開平１１−２８３９４号公報
【０００４】
【発明が解決する課題】
現在、機械製造工場、プラスチック成形工場、自動車修理工場など、様々な工場や工業施設において、エアゾール容器に充填された各種液状体が様々な用途に使われている。この種のエアゾール容器は、簡便に液状体を噴射させることができ、しかも携帯性に優れているから、大変便利に使用できる反面、使用済容器は廃棄するほかないため、大量に消費する工場などではこの廃棄処理が大きな問題となっている。
【０００５】
そこで本発明は、新たな手段で液状体を簡便に噴射させることできる器具を提供せんとするものである。
【０００６】
【課題を解決するための手段】
本発明者は、プラスチック成形工場、自動車修理工場など、業態を問わずほとんどの工場や工業施設等にエアガン等の圧縮ガス供給手段が設置されていることに着目し、既存の圧縮ガス供給手段をそのまま利用して各種液状体を簡便に噴射させられる器具を開発した。
【０００７】
即ち、本発明は、圧縮ガス供給手段の噴射口に接続し得る液状体噴射アダプターであって、圧縮ガス供給手段の噴射口に着脱可能に接続する接続口部と、液状体を噴射する液状体噴射口部と、液状体を収容した貯液具を着脱可能に連結し得る貯液具連結口部と、前記接続口部、液状体噴射口部間を連通する連通路と、当該連通路、貯液具連結口部間を連通し、連通路内に圧縮ガスが流通すると貯液具内の液状体を吸引し得る液状体供給路とを備えた液状体噴射アダプター（以下、貯液具を除いた構成のものを「アダプター本体」ともいう。）、並びに、当該処理液供給アダプターの貯液具連結口部に貯液具を連結してなる液状体噴射アダプターを提案する。
【０００８】
このような構成の液状体噴射アダプターであれば、ほとんどの工場や工業施設に既に設置されているエアガン等の圧縮ガス供給手段の噴射口に接続するだけで各種液状体を噴射させることができるから、極めて安価かつ簡便に利用することができる。しかも、貯液具に液状体を補給すれば永続的に使用することができるし、又、貯液具を取り替えることで異なる液状体を噴射させることもできるから、エアゾール容器の廃棄処理の問題を解決することができる。更には、エアガン等の圧縮ガス供給手段の圧縮ガスを利用するため、エアゾール容器に比べて強力に液状体を噴射させることができるなど、エアゾール容器に比べてより広い用途に利用することができる。
【０００９】
上記構成を備えた液状体噴射アダプターにおいて、連通路及び液状体供給路は、連通路内に圧縮ガスを流すと貯液具内の液状体を液状体供給路を介して連通路内に吸引し得る構成であるのが好ましい。その具体的な構造は任意に形成可能であるが、例えば、連通路の中間部に段差部を設け、当該段差部の接続口部側を小径通路とし、当該段差部の液状体噴射口部側を前記小径通路より径の大きな大径通路とし、液状体供給路を前記大径通路内の当該段差部の近傍に連通してなる構成とすれば、連通路内に圧縮ガスを流せば貯液具内の液状体を液状体供給路を介して連通路内に吸引し、液状体噴射口部から噴射させることができる。
なお、この際の当該段差部の近傍とは、小径通路内を流通してきた圧縮ガスが大径通路に入って拡散した際、その拡散によって負圧になる範囲を意味する。
【００１０】
上記構成を備えた液状体噴射アダプターの液状体噴射口部には、噴射量、噴射形状などを調整し得る噴射調整具を接続することができる。噴射調整具によって噴射量や噴射形状などを調整することができるから、更に使い易くなり、用途もより一層拡大する。
また、液状体供給路を開閉し得る切替スイッチを設けることができ、このような切替スイッチを備えていれば、液状体の噴射と高圧ガスの噴射とを自在に切替えることができ、作業性を一段と高めることができる。
【００１１】
上記構成を備えた液状体噴射アダプターの貯液具連結口部に連結する貯液具（液状体貯液具）は、特にその構造を限定するものではないが、例えば、液状体を収容可能で、かつ膨縮可能な貯液具本体と、連結口部とを備え、当該連結口部から吸引されると貯液具本体が縮むと共に内部の液状体が当該連結口部から流出する構成を備えたものが好ましい。
このような構成を備えた貯液具であれば、液状体噴射アダプターの貯液具連結口部に連結し、圧縮ガス供給手段からの圧縮ガスを連通路内に通すだけで、収容している液状体を液状体噴射アダプターの連通路を介して液状体噴射口部から噴射させることができる。しかも、吸引されると貯液具本体が縮む構造であるから、貯液具本体に空気穴を設ける必要がなく、貯液具をどのような角度で使用しても同様に液状体を噴射させることができ、天地無用で使用することができる。
【００１２】
本発明において「圧縮ガス供給手段」とは、コンプレッサ、ポンプ、エアガン、スプレーガンなど、圧縮ガスを供給するあらゆる装置乃至具（圧縮ガス供給装置乃至具）を包含する意であり、その「噴射口」とは、圧縮ガス供給装置乃至具から供給される圧縮ガスを噴射する噴射具の先端部、例えばエアガン等の噴射口等である。
「エアガン」は、コンプレッサ等からの圧縮空気を噴射する噴射具であって、通常、グリップ部、トリガー部、噴射口及び空気ニップルなどを備え、圧縮空気を空気ニップルから送り込み、トリガー部の操作によって圧縮空気を噴射口から噴射させることができるようになっている。塗料等の液状体を収容した容器やホースを接続するニップルを備え、圧縮空気の噴出によって塗料等の液状体を霧化させて噴射口から液状体を噴射する所謂「スプレーガン」もエアガンの一種であるが、このタイプの場合は、切替弁等によって圧縮空気のみを噴射口から噴射できる構造である必要がある。
また、本発明において「液状体」とは、洗浄液、塗料、塗装液、ムース剤、防錆剤、錆黒化液状体、その他各種油、各種水或いは水溶液など、形状を問わず任意用途に用いられる各種の液状体を包含する。
また、「圧縮ガス供給手段の噴射口に接続し得る」とは、圧縮ガスが漏れないように連結し得るあらゆる接続構造を包含し、例えば螺合式に接続する構造、嵌合式に接続する構造のほか、例えば接続口部に圧縮ガス供給手段の噴射口を押付けて圧縮ガスが漏れないように連結する構造なども包含する。
【００１３】
【発明の実施の形態】
以下、実施例に基づいて本発明の実施形態について説明するが、本発明がこの実施例に限定されるものではない。
【００１４】
本発明の実施例に係る液状体噴射アダプター１は、図１に示すように、エアガン５０の噴射口５１に接続し得る液状体噴射アダプターであって、アダプター本体２と貯液具３とを備えている。
【００１５】
アダプター本体２は、図２に示すように、エアガン５０の噴射口５１に着脱可能に接続し得る接続口部４と、液状体を噴射する液状体噴射口部５と、貯液具３を着脱可能に連結させ得る貯液具連結口部６と、前記接続口部４、液状体噴射口部５間を連通する連通路７と、連通路７、貯液具連結口部６間を連通する液状体供給路８とを備えている。
【００１６】
アダプター本体２の素材は特に限定するものではなく、例えば熱可塑性樹脂、熱硬化性樹脂などの合成樹脂や金属、ゴム、エラストマ（弾性を備えた樹脂体）などから形成可能である。
合成樹脂や金属などから一体成形することも可能であるが、一体成形に制限するものではない。本例の場合は、合成樹脂を射出成形して、肉厚角柱状の本体部２Ａに接続口部４、液状体噴射口部５、貯液具連結口部６、連通路７及び液状体供給路８を一体成形してあるが、接続口部４、液状体噴射口部５、貯液具連結口部６、連通路７及び液状体供給路８のいずれか一つ或いは二つ以上を本体部２Ａとは別の材料から形成し、後から本体部２Ａに固着して一体に形成することも可能である。
なお、本体部２Ａの形状は任意であり、角形状、円柱形状、略円錐形状、角管状、円管状、その他任意の形状に形成することが可能である。
【００１７】
接続口部４は、エアガン５０の噴射口５１に着脱可能で、かつ気密を保持し得るように連結できるように形成してある。例えば本例の場合は、本体部２Ａから突出部２ａを設け、噴射口５１の内周面部に設けられたネジ部と螺合し得るネジ部４ａを前記突出部２ａの外周面に形成すると共に、突出部２ａの内部には連通路７と連通する開口部４ｂを設けて構成してある。
【００１８】
液状体噴射口部５は、図２に示すように、連通路７（詳しくは後述する大径通路７Ｂ）がそのままの大きさで開口した構造でもよいし、その他任意に形成可能である。例えば液状体を噴射させる形状に合わせてその開口部の形状及び大きさを適宜変更して形成することができる。また、噴射量、噴射形状などを調整し得るように、開口部を自在に開閉できる絞り機構を設けることも可能である。また、例えば開口部内周面或いは外周面にネジ部を形成するなどして、噴射量、噴射形状などを調整し得る噴射調整具その他のアダプターを接続可能に形成することもできる。
【００１９】
貯液具連結口部６は、本体部２Ａの下面に突出部２ｂを設け、突出部２ｂ内に連結口１４を挿入し得る凹部６ａを設け、この凹部６ａの内周面に連結口１４のネジ部と螺合し得るネジ部６ｂを設けて刻設してある。但し、貯液具３の連結口１４を気密性を保持しつつ着脱可能に連結し得る連結構造であれば任意に採用可能である。例えば、内周面にネジ部を設けたキャップ体を凹部６ａに埋設して形成することもできる。
【００２０】
連通路７は、接続口部４、液状体噴射口部５間を連通する穴として形成してあり、詳しくは、図２に示すように、中間部に段差部７Ｃを設け、この段差部７Ｃの接続口部４側をより径小の穴からなる小径通路７Ａとし、段差部７Ｃの液状体噴射口部５側をより径大の穴からなる大径通路７Ｂとして形成してある。
この際、段差部７Ｃの大きさ、すなわち小径通路７Ａと大径通路７Ｂの径の差を約５ｍｍ以上とするのが好ましい。
小径通路７Ａは、図３に示すように、接続口部４の開口部４ｂから窄まって小径となるように形成してもよい。
【００２１】
液状体供給路８は、連通路７、貯液具連結口部６間を連通路７と略直交するように連通し、詳しくは大径通路７Ｂ内の段差部７Ｃの近傍に連通し、連通路７内に圧縮ガスが流れると液状体供給路８内が負圧となり、貯液具３内の液状体を吸引し得るように構成してある。
なお、本例の場合、段差部７Ｃの段差面と液状体供給路８の接続口部４側の内周面が面一になるように連通しているが、図４に示すような段差部７Ｃの近傍範囲（図の太線部Ｘ）内であれば連通させることができる。即ち、小径通路７Ａ内を流通してきた圧縮ガスが大径通路７Ｂに入って一気に拡散した際、その拡散線Ｓの懐部分（点斜線部）が負圧になる範囲であり、当該近傍範囲（図の太線部Ｘ）に液状体供給路８が連通していれば、連通路７内に圧縮ガスが流れると液状体供給路８内が負圧となり、貯液具３内の液状体を吸引することができる。
この際、拡散線Ｓの角度αを４５度と想定し、拡散線Ｓが大径通路７Ｂの内周面に交わる位置よりも段差部７Ｃ寄りの部分を近傍範囲（図の太線部Ｘ）と設定することができる。
【００２２】
要するに、連通路７内に圧縮ガスを流通させると貯液具３内の液状体が連通路７内に吸引されるように形成するためには、連通路７の径を段差部７Ｃを介してその液状体噴射口部５側をより大きくすると共に、連通路７の拡径した大径通路７Ｂ内の段差部７Ｃ近傍に液状体供給路８が連結するように構成すればよい。
この際、液状体供給路８が連通路７に交わる角度は、特に限定するものではなく、本例のように略直交状に交わるように形成することも、又、更にいずれかに傾いた角度で交わるように形成することもできる。
【００２３】
液状体供給路８の径の大きさは、貯液具３内の液状体を吸引するのに適した適宜大きさに設計するのが好ましい。一般的には、例えば大径通路７Ｂの径が約４ｍｍ程度の場合、液状体供給路８の内径は約１．５ｍｍ程度とするのが好ましい。但し、これに限定されるものではない。
さらにまた、液状体供給路８は、図５に示すように、本体部２Ａに穴を穿設し、この穴内に管部材９を挿着するようにして形成することもでき、この場合、管部材９の先端部を貯液具連結口部６内に突出させ、貯液具３の連結口１４を貯液具連結口部６に連結すると、連結口１４内に管部材９の先端部が侵入するように形成することもできる。
【００２４】
貯液具３は、図６に示すように、液状体を貯液可能で、かつ膨縮可能な貯液具本体１１から構成してある。
【００２５】
この貯液具本体１１は、合成樹脂からから形成してあり、伸縮自在な蛇腹状に形成してある胴部１２と、胴部１２上に突出した円管部１３と、円管部１３の上端部に形成された貯液具連結口部６と着脱可能に連結し得る連結部１４とから構成してある。
連結部１４は、貯液具連結口部６のネジ部６ｂと螺合可能に形成してある。
【００２６】
このような貯液具３であれば、貯液具連結口部６に連結すると胴部１２内は密閉状態となるが膨縮可能であるから、図７に示すように、貯液具本体１１内に液状体を収納した状態で、連結部１４側から吸引すると、貯液具本体１１の胴部１２が縮むと共に、内部の液状体が連結部１４の口から流出する。
また、図示はしないが、貯液具３は、通気穴が無いから３６０°いずれの角度で使用しても、例えば図７の状態から天地逆さで使用しても、同様に液状体をアダプター本体２に供給することができる。
【００２７】
なお、連結部１４に着脱可能なキャップを装着する構成とし、使わない時には貯液具３を液状体の保存容器として使用することもできる。
【００２８】
次に、液状体噴射アダプター１の使用方法について説明する。
【００２９】
液状体を収納した貯液具３を、連結部１４を貯液具連結口部６に連結してアダプター本体２に装着し、液状体噴射アダプター１を組立てる。そして、図８に示すように、エアガン５０の噴射口５１に接続口部４を接続すれば、噴射準備完了である。
あとは、エアガン５０のトリガー部５２を操作すれば噴射口５１から圧縮ガス（圧縮空気）を噴射させることができる。この際、圧縮ガスは連通路７内を流通して液状体噴射口部５から噴出すると同時に、貯液具３内の液状体を吸引して液状体噴射口部５から液状体を噴出させる。
【００３０】
このように、本発明の液状体噴射アダプター１を用いれば、液状体を圧送する装置を新たに設置する必要がなく、既に工場その他の工業施設等に設置されているエアガンなどの圧縮ガス供給装置乃至具を利用して液状体を連続的に噴射させることができ、しかも、３６０°いずれの角度で使用しても、即ち天地無用で使用しても同様に液状体を噴射させることができる。
【００３１】
なお、本発明の液状体噴射アダプターにおいて、接続口部４は、エアガン５０の噴射口５１に着脱可能で、かつ気密を保持し得るように連結できる構成であれば、その接続構造は任意に形成可能である。
例えば、図９に示すように、連通路７の開口端から連続し、外側に向ってロートの如く開拡したテーパ面２１ａを形成してなる噴射口当接開口部２１を設けて形成することができる。エアガン５０の先端部（噴射口５１）をテーパ面２１ａに押し付けて当接すれば、その噴射口５１を略気密状態に接続することができ、エアガン５０の噴射口５１から噴射される圧縮ガスを漏らさないように連通路７内に案内することができる。
【００３２】
また、図１０〜図１２に示すように、上記のテーパ面２１ａの外側に、エアガン５０の噴射口５１を当接させる際に当該テーパ面２１ａと当該噴射口との間に介在して気密性を高めるパッキン部２２を更に設けて接続口部４を構成することもできる。
このパッキン部２２は、本体部２Ａと一体に形成することができ、連通路７の開口端縁付近を基端部として外側に向ってスカート状に開拡し、かつテーパ面２１ａから独立して斜めに起立し、かつ前後に可動可能に形成することができる。そしてこのパッキン部２２は、パッキン機能を発揮し得る弾力性を持ち得るように薄く形成するのが好ましい。この際、肉厚が大きいと、たとえポリエチレンなどの柔軟な樹脂でも弾力性が低下してパッキン機能を充分に発揮しないようになる。
なお、パッキン部２２は、パッキン機能を発揮し得る弾力性を持ち得る樹脂、例えばポリエチレン、或いはそれと同等か、それよりも柔軟な樹脂から形成するのが好ましい。よって、上記のように本体部２Ａと一体形成する場合、本体部２Ａもポリエチレン、或いはそれと同等か、それよりも柔軟な樹脂から形成するのが好ましい。
このような構成を備えた接続口部４であれば、図１２に示すように、エアガン５０の先端部（噴射口５１）をパッキン部２２に当接してテーパ面２１ａに押付け、パッキン部２３を介在させてエアガン５０の先端部（噴射口５１）をテーパ面２１ａに接続すれば、気密性高く接続することができる。しかも、テーパ面２１ａの角度（図２のα）が大きくても接続時の気密を確実に確保することができる。
【００３３】
なお、パッキン部２２は、本体部２Ａと一体に形成しても、別体に形成してもよい。また、本体部２Ａと同じ材質でも別の材質であってもよい。さらに、上記の例の如く、薄い樹脂からなる円環状体をテーパ面２１ａから独立して起立させて前後可動可能に形成しても、円環状体を予めテーパ面２１ａに固着して一体に形成することも可能である。なお、この際のパッキン部２０の形状を円環状に限定するものではない。
【００３４】
接続口部４は、エアガン５０の噴射口５１に嵌着させる構造のもの、例えばガスの元栓口とガスホースの如くワンタッチカプラ式に嵌着する構造とすることもできる。
【００３５】
貯液具３は、液状体を収容可能で、かつ膨縮可能な貯液具本体と、連結口部とを備えていれば、上記の例に限定されるものではない。例えば、図１３に示すように、液状体を収容する液状体収容部２３をプラスチックフィルム袋やゴム風船袋等で形成することもできる。この際、液状体収容部２３を支持するため、金属、プラスチックなどからなる保形容器２４内に液状体収容部２３を収納するのが好ましい。このように構成すれば、図１４に示すように、たとえ天地が逆になっても、液状体収容部２３は保形容器２４に支持されるから作業の邪魔になることがない。
また、連結部１４は保形容器２４に設けるのが好ましく、図１５に示すように、液状体収容部２３は保形容器２４に対して着脱可能に構成するのが好ましい。
【図面の簡単な説明】
【図１】本発明の一実施例に係る液状体噴射アダプターの一例を、アダプター本体と貯液具とに分解して、エアガンと共に示した側面図である。
【図２】図１に示したアダプター本体の断面図である。
【図３】連通路の小径通路の変形例を示すために、アダプター本体の要部を拡大して示した断面図である。
【図４】液状体供給路が連通路に連結する位置を説明するために、連通路内の圧縮ガスの流れと共に、アダプター本体の要部を拡大して示した断面図である。
【図５】連液状体供給路の変形例を示すために、アダプター本体の要部を拡大して示した断面図である。
【図６】図１に示した貯液具の側面図である。
【図７】図６に示した貯液具の動作を説明した側面図である。
【図８】本発明の一実施例に係る液状体噴射アダプターの一例の使用方法の一例を示した一部断面側面図である。
【図９】接続口部の変形例を示すために、エアガンの先端部と共にアダプター本体の要部を拡大して示した断面図である。
【図１０】本発明の他の実施例に係る液状体噴射アダプター（特に接続口部）の一例を示した断面図である。
【図１１】本発明の更なる他の実施例に係る液状体噴射アダプター（特に接続口部）の一例を示した断面図である。
【図１２】接続口部にパッキン部を設けた場合の動作を示すため、エアガンの先端部と共にアダプター本体の要部を拡大して示した断面図である。
【図１３】貯液具の変形例を示した断面図である。
【図１４】図１３に示した貯液具の使用状態の一例を示した断面図である。
【図１５】図１３に示した貯液具の一構成例を示した断面図である。
【符号の説明】
１液状体噴射アダプター
２アダプター本体
２Ａ本体部
３貯液具
４接続口部
４ａネジ部
４ｂ開口部
５液状体噴射口部
６貯液具連結口部
６ａ凹部
６ｂネジ部
７連通路
７Ａ小径通路
７Ｂ大径通路
７Ｃ段差部
８液状体供給路
９管部材
１１貯液具本体
１２胴部
１３円管部
１４連結部
２１噴射口当接開口部
２１ａテーパ面
２２パッキン部
２３液状体収容部
２４保形容器
５０エアガン
５１噴射口
５２トリガー部[0001]
BACKGROUND OF THE INVENTION
The present invention is for spraying various liquids such as cleaning liquids, paints, coating liquids, mousse agents, rust preventives, rust blackening liquids, various other processing liquids, various oils, various waters or aqueous solutions. More particularly, the present invention relates to a liquid material injection adapter that is connected to an injection port of compressed gas supply means such as an air gun and injects a liquid material using the compressed gas.
[0002]
[Prior art]
Patent Document 1 discloses a configuration in which a hermetic spray gun is configured using a resin bellows container as a paint container of a spray paint spray gun.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-28394
[Problems to be solved by the invention]
Currently, various liquid materials filled in aerosol containers are used for various purposes in various factories and industrial facilities such as machine manufacturing factories, plastic molding factories, and automobile repair factories. This type of aerosol container can easily inject a liquid material and has excellent portability, so it can be used very conveniently. On the other hand, the used container must be discarded. Then, this disposal is a big problem.
[0005]
Therefore, the present invention is intended to provide an instrument capable of simply ejecting a liquid material by new means.
[0006]
[Means for Solving the Problems]
The inventor pays attention to the fact that compressed gas supply means such as air guns are installed in almost all factories and industrial facilities, such as plastic molding factories and automobile repair factories. We have developed an instrument that can be used as it is to easily spray various liquids.
[0007]
That is, the present invention is a liquid material injection adapter that can be connected to an injection port of a compressed gas supply means, a connection port portion that is detachably connected to the injection port of the compressed gas supply means, and a liquid material that injects a liquid material An injection port, a liquid storage connection port that can removably connect a liquid storage device containing a liquid material, a communication path that communicates between the connection port and the liquid material injection port, and the communication path. A liquid material injection adapter (hereinafter referred to as a liquid storage adapter) having a liquid material supply path that communicates between the liquid storage device connection ports and can suck the liquid material in the liquid storage device when compressed gas flows through the communication passage. The configuration excluding the configuration is also referred to as “adapter body”), and a liquid jet adapter is proposed in which a reservoir is connected to the reservoir connecting port of the processing liquid supply adapter.
[0008]
With a liquid material injection adapter having such a configuration, various liquid materials can be injected simply by connecting to the injection port of compressed gas supply means such as an air gun already installed in most factories and industrial facilities. It can be used very inexpensively and easily. In addition, if the liquid material is replenished to the liquid storage device, it can be used permanently, or a different liquid material can be sprayed by replacing the liquid storage device. Can be solved. Furthermore, since the compressed gas of the compressed gas supply means such as an air gun is used, the liquid material can be jetted more strongly than the aerosol container, so that it can be used for a wider range of applications than the aerosol container.
[0009]
In the liquid material injection adapter having the above-described configuration, the communication path and the liquid material supply path are configured to suck the liquid material in the liquid storage device into the communication path through the liquid material supply path when a compressed gas flows in the communication path. It is preferable to obtain a configuration. The specific structure can be arbitrarily formed. For example, a step portion is provided in the middle portion of the communication passage, the connection port side of the step portion is a small diameter passage, and the liquid jet port side of the step portion Is a large-diameter passage having a diameter larger than that of the small-diameter passage, and the liquid material supply passage communicates with the vicinity of the step portion in the large-diameter passage. The liquid material in the device can be sucked into the communication path via the liquid material supply path and can be ejected from the liquid material injection port.
In addition, the vicinity of the said level | step-difference part in this case means the range which becomes negative pressure by the spreading | diffusion when the compressed gas which distribute | circulated the inside of a small diameter passage enters into a large diameter passage, and spread | diffuses.
[0010]
An injection adjusting tool capable of adjusting the injection amount, the injection shape, and the like can be connected to the liquid injection port of the liquid injection adapter having the above-described configuration. Since the injection amount, the injection shape, and the like can be adjusted by the injection adjusting tool, it becomes easier to use and uses are further expanded.
Further, a changeover switch that can open and close the liquid supply path can be provided. If such a changeover switch is provided, the injection of the liquid and the injection of the high-pressure gas can be freely switched, and workability is improved. It can be further enhanced.
[0011]
The structure of the liquid storage device (liquid material storage device) connected to the liquid storage device connecting port of the liquid material injection adapter having the above-described configuration is not particularly limited. And a liquid storage device body that can be expanded and contracted, and a connecting port portion, and when sucked from the connecting port portion, the liquid storage device body contracts and an internal liquid material flows out from the connecting port portion. Are preferred.
If it is a liquid storage device having such a configuration, it is connected to the liquid storage device connecting port portion of the liquid material injection adapter, and the compressed gas from the compressed gas supply means is simply passed through the communication path and accommodated. The liquid material can be jetted from the liquid jet port through the communication path of the liquid jet adapter. Moreover, since the liquid storage device main body contracts when sucked, it is not necessary to provide an air hole in the liquid storage device main body, and the liquid material is similarly ejected regardless of the angle at which the liquid storage device is used. Can be used without the top and bottom.
[0012]
In the present invention, “compressed gas supply means” means any device or tool (compressed gas supply device or tool) that supplies compressed gas, such as a compressor, a pump, an air gun, or a spray gun. "Is a tip of an injection tool that injects compressed gas supplied from a compressed gas supply device or tool, for example, an injection port such as an air gun.
An “air gun” is an injection tool that injects compressed air from a compressor or the like, and usually includes a grip part, a trigger part, an injection port, an air nipple, etc., and the compressed air is fed from the air nipple and operated by operating the trigger part. Compressed air can be injected from the injection port. A so-called "spray gun" is also a type of air gun that has a nipple that connects a hose to a container or hose containing a liquid material such as paint, and sprays the liquid material from an injection port by atomizing the liquid material by jetting compressed air However, in the case of this type, it is necessary to have a structure in which only compressed air can be injected from the injection port by a switching valve or the like.
Further, in the present invention, the “liquid body” is used for any use regardless of the shape, such as cleaning liquid, paint, coating liquid, mousse agent, rust preventive agent, rust blackening liquid body, other various oils, various water or aqueous solutions. Including various liquid materials.
In addition, “can be connected to the injection port of the compressed gas supply means” includes all connection structures that can be connected so that the compressed gas does not leak, and includes, for example, a screw-type connection structure and a fitting-type connection structure. In addition, for example, a structure in which the compressed gas supply means is pressed against the connection port portion so that the compressed gas does not leak is included.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, although an embodiment of the present invention is described based on an example, the present invention is not limited to this example.
[0014]
As shown in FIG. 1, the liquid injection adapter 1 according to the embodiment of the present invention is a liquid injection adapter that can be connected to an injection port 51 of an air gun 50, and includes an adapter body 2 and a liquid storage device 3. ing.
[0015]
As shown in FIG. 2, the adapter body 2 detaches the connection port 4 that can be detachably connected to the injection port 51 of the air gun 50, the liquid material injection port 5 that injects the liquid material, and the liquid storage device 3. The reservoir connection port portion 6 that can be connected to each other, the communication passage 7 that communicates between the connection port portion 4 and the liquid jet port portion 5, and the communication passage 7 and the reservoir connection port portion 6 that communicate with each other. And a liquid supply path 8.
[0016]
The material of the adapter body 2 is not particularly limited, and can be formed from, for example, a synthetic resin such as a thermoplastic resin or a thermosetting resin, metal, rubber, elastomer (resin body having elasticity), or the like.
Although it can be integrally formed from synthetic resin or metal, it is not limited to integral molding. In the case of this example, synthetic resin is injection-molded, and the connection port 4, the liquid material injection port 5, the liquid storage device connection port 6, the communication path 7, and the liquid material supply are provided in the thick prismatic main body 2 </ b> A. Although the passage 8 is integrally formed, any one or two or more of the connection port portion 4, the liquid material injection port portion 5, the liquid storage device connection port portion 6, the communication passage 7, and the liquid material supply passage 8 are the main body. It is also possible to form it from a material different from that of the part 2A, and to adhere to the main body part 2A later and form it integrally.
The shape of the main body 2A is arbitrary, and can be formed in a square shape, a cylindrical shape, a substantially conical shape, a square tubular shape, a circular tubular shape, or any other desired shape.
[0017]
The connection port part 4 is formed so that it can be attached to and detached from the injection port 51 of the air gun 50 and can be connected so as to maintain airtightness. For example, in the case of this example, the protruding portion 2a is provided from the main body portion 2A, and the screw portion 4a that can be screwed with the screw portion provided on the inner peripheral surface portion of the injection port 51 is formed on the outer peripheral surface of the protruding portion 2a. In addition, an opening 4b that communicates with the communication path 7 is provided inside the protrusion 2a.
[0018]
As shown in FIG. 2, the liquid material injection port portion 5 may have a structure in which the communication path 7 (a large-diameter path 7 </ b> B described later in detail) is opened as it is, or may be arbitrarily formed. For example, it can be formed by appropriately changing the shape and size of the opening in accordance with the shape in which the liquid material is ejected. It is also possible to provide a throttle mechanism that can freely open and close the opening so that the injection amount, the injection shape, and the like can be adjusted. Further, for example, by forming a screw portion on the inner peripheral surface or the outer peripheral surface of the opening, an injection adjusting tool or other adapter that can adjust the injection amount, the injection shape, and the like can be formed to be connectable.
[0019]
The liquid storage device connection port 6 is provided with a protrusion 2b on the lower surface of the main body 2A, a recess 6a into which the connection port 14 can be inserted into the protrusion 2b, and the connection port 14 on the inner peripheral surface of the recess 6a. A threaded portion 6b that can be screwed with the threaded portion is provided and engraved. However, any connection structure can be used as long as the connection port 14 of the liquid storage device 3 can be detachably connected while maintaining airtightness. For example, a cap body provided with a screw portion on the inner peripheral surface can be formed by being embedded in the recess 6a.
[0020]
The communication path 7 is formed as a hole that communicates between the connection port portion 4 and the liquid material injection port portion 5, and more specifically, as shown in FIG. 2, a step portion 7C is provided at an intermediate portion, and the step portion 7C is provided. The connecting port portion 4 side is formed as a small diameter passage 7A composed of a smaller diameter hole, and the liquid material injection port portion 5 side of the stepped portion 7C is formed as a large diameter passage 7B composed of a larger diameter hole.
At this time, the size of the stepped portion 7C, that is, the difference in diameter between the small diameter passage 7A and the large diameter passage 7B is preferably about 5 mm or more.
As shown in FIG. 3, the small diameter passage 7 </ b> A may be formed so as to be narrowed from the opening 4 b of the connection port 4.
[0021]
The liquid supply path 8 communicates between the communication path 7 and the reservoir connecting port portion 6 so as to be substantially orthogonal to the communication path 7. More specifically, the liquid supply path 8 communicates with the vicinity of the stepped portion 7 C in the large-diameter path 7 B. When compressed gas flows in the passage 7, the inside of the liquid material supply path 8 becomes negative pressure, and the liquid material in the liquid storage device 3 can be sucked.
In the case of this example, the stepped surface of the stepped portion 7C and the inner peripheral surface on the connection port 4 side of the liquid supply path 8 are in communication with each other, but the stepped portion as shown in FIG. If it is in the vicinity of 7C (thick line portion X in the figure), it can be communicated. That is, when the compressed gas that has circulated through the small diameter passage 7A enters the large diameter passage 7B and diffuses all at once, the nose portion (dotted line portion) of the diffusion line S becomes negative pressure, and the vicinity range ( If the liquid supply path 8 communicates with the thick line portion X) in the figure, when the compressed gas flows in the communication path 7, the liquid supply path 8 becomes negative pressure, and the liquid in the liquid storage device 3 is sucked. can do.
At this time, the angle α of the diffusion line S is assumed to be 45 degrees, and the portion closer to the stepped portion 7C than the position where the diffusion line S intersects the inner peripheral surface of the large-diameter passage 7B is defined as the vicinity range (thick line portion X in the figure). Can be set.
[0022]
In short, in order to form the liquid material in the liquid storage device 3 so as to be sucked into the communication path 7 when the compressed gas is circulated through the communication path 7, the diameter of the communication path 7 is set via the step portion 7C. What is necessary is just to comprise so that the liquid supply port 8 may be connected to the level | step-difference part 7C vicinity in the large diameter channel | path 7B in which the diameter of the communication channel | path 7 was expanded while the liquid material injection port part 5 side was enlarged.
At this time, the angle at which the liquid supply path 8 intersects the communication path 7 is not particularly limited, and it may be formed so as to intersect substantially orthogonally as in this example, or may be further inclined at any angle. It can also be formed to intersect.
[0023]
The diameter of the liquid supply path 8 is preferably designed to an appropriate size suitable for sucking the liquid in the liquid storage device 3. Generally, for example, when the diameter of the large-diameter passage 7B is about 4 mm, the inner diameter of the liquid supply passage 8 is preferably about 1.5 mm. However, it is not limited to this.
Furthermore, as shown in FIG. 5, the liquid supply path 8 can be formed by making a hole in the main body 2A and inserting the tube member 9 into the hole. When the distal end portion of the member 9 is projected into the liquid storage device connection port portion 6 and the connection port 14 of the liquid storage device 3 is connected to the liquid storage device connection port portion 6, the front end portion of the tube member 9 is inserted into the connection port 14. It can also be formed to penetrate.
[0024]
As shown in FIG. 6, the liquid storage device 3 includes a liquid storage body 11 that can store a liquid and can expand and contract.
[0025]
The liquid storage device main body 11 is made of a synthetic resin, and includes a barrel portion 12 formed in a stretchable bellows shape, a circular tube portion 13 protruding on the barrel portion 12, and a circular tube portion 13. It is comprised from the connecting part 14 which can be connected with the liquid storage apparatus connection port part 6 formed in the upper end part so that attachment or detachment is possible.
The connecting portion 14 is formed so as to be screwable with the screw portion 6 b of the liquid storage device connecting port portion 6.
[0026]
In such a liquid storage device 3, since the inside of the body portion 12 is sealed when connected to the liquid storage device connection port portion 6, but can be expanded and contracted, as shown in FIG. When the liquid material is housed inside and sucked from the connecting portion 14 side, the body portion 12 of the liquid storage device main body 11 contracts and the liquid material inside flows out from the mouth of the connecting portion 14.
Although not shown, since the liquid storage device 3 has no vent hole, it can be used at any angle of 360 °, for example, when it is used upside down from the state shown in FIG. 2 can be supplied.
[0027]
In addition, it is set as the structure which attaches a detachable cap to the connection part 14, and when not using it, the liquid storage device 3 can also be used as a storage container of a liquid body.
[0028]
Next, the usage method of the liquid material injection adapter 1 is demonstrated.
[0029]
The liquid storage device 3 containing the liquid material is attached to the adapter body 2 by connecting the connecting portion 14 to the liquid storage device connecting port portion 6, and the liquid material injection adapter 1 is assembled. And as shown in FIG. 8, if the connection port part 4 is connected to the injection port 51 of the air gun 50, preparation for injection is completed.
After that, if the trigger part 52 of the air gun 50 is operated, the compressed gas (compressed air) can be injected from the injection port 51. At this time, the compressed gas flows through the communication passage 7 and is ejected from the liquid material injection port 5, and at the same time, the liquid material in the liquid storage device 3 is sucked to eject the liquid material from the liquid material injection port 5.
[0030]
Thus, if the liquid injection adapter 1 of the present invention is used, it is not necessary to newly install a device for pumping the liquid, and a compressed gas supply device such as an air gun already installed in a factory or other industrial facility. The liquid material can be continuously ejected by using the tool, and the liquid material can be ejected even if it is used at any angle of 360 °, that is, when it is used upside down.
[0031]
In addition, in the liquid material injection adapter of the present invention, the connection port portion 4 can be arbitrarily formed as long as the connection port portion 4 can be attached to and detached from the injection port 51 of the air gun 50 and can be connected to be airtight. Is possible.
For example, as shown in FIG. 9, an injection port abutting opening 21 formed by forming a tapered surface 21 a that is continuous from the opening end of the communication passage 7 and expands outward like a funnel is provided. Can do. If the front end portion (injection port 51) of the air gun 50 is pressed against and abuts against the tapered surface 21a, the injection port 51 can be connected in a substantially airtight state, and the compressed gas injected from the injection port 51 of the air gun 50 is leaked. It can guide in the communicating path 7 so that there is no.
[0032]
As shown in FIGS. 10 to 12, when the injection port 51 of the air gun 50 is brought into contact with the outside of the tapered surface 21 a, the airtightness is interposed between the tapered surface 21 a and the injection port. It is also possible to configure the connection port portion 4 by further providing a packing portion 22 for increasing the height.
The packing portion 22 can be formed integrally with the main body portion 2A, and expands in a skirt shape toward the outside with the vicinity of the opening edge of the communication path 7 as a base end portion, and independently of the tapered surface 21a. It can be formed such that it stands up diagonally and is movable back and forth. And it is preferable to form this packing part 22 thinly so that it may have the elasticity which can exhibit a packing function. At this time, if the wall thickness is large, even if a flexible resin such as polyethylene is used, the elasticity is lowered and the packing function is not sufficiently exhibited.
In addition, it is preferable to form the packing part 22 from resin which can have the elasticity which can exhibit a packing function, for example, polyethylene, or the resin which is equivalent or more flexible than it. Therefore, when integrally forming with 2 A of main-body parts as mentioned above, it is preferable to form 2 A of main-body parts also from polyethylene or the resin which is equivalent or more flexible than it.
In the case of the connection port portion 4 having such a configuration, as shown in FIG. 12, the tip portion (injection port 51) of the air gun 50 is brought into contact with the packing portion 22 and pressed against the taper surface 21a. If the tip part (injection port 51) of the air gun 50 is connected to the tapered surface 21a by interposing, it can be connected with high airtightness. Moreover, even when the angle of the taper surface 21a (α in FIG. 2) is large, it is possible to ensure airtightness at the time of connection.
[0033]
The packing portion 22 may be formed integrally with the main body portion 2A or may be formed separately. Moreover, the same material as the main body 2A or a different material may be used. Further, as in the above example, even if the annular body made of a thin resin is erected independently from the tapered surface 21a and can be moved back and forth, the annular body is fixed to the tapered surface 21a in advance and integrally formed. It is also possible to do. In addition, the shape of the packing part 20 in this case is not limited to an annular shape.
[0034]
The connection port portion 4 may be structured to be fitted to the injection port 51 of the air gun 50, for example, a structure to be fitted in a one-touch coupler type such as a gas main plug port and a gas hose.
[0035]
The liquid storage device 3 is not limited to the above example as long as the liquid storage device 3 can store a liquid material and includes a liquid storage device body that can be expanded and contracted and a connection port portion. For example, as shown in FIG. 13, the liquid material accommodation part 23 for accommodating the liquid material can be formed of a plastic film bag, a rubber balloon bag, or the like. At this time, in order to support the liquid material storage unit 23, it is preferable to store the liquid material storage unit 23 in a shape retaining container 24 made of metal, plastic or the like. If comprised in this way, as shown in FIG. 14, even if the top-and-bottom is reversed, since the liquid-material accommodating part 23 is supported by the shape-keeping container 24, it does not become obstructive of an operation | work.
Further, the connecting portion 14 is preferably provided in the shape retaining container 24, and the liquid material accommodating portion 23 is preferably configured to be detachable from the shape retaining container 24 as shown in FIG.
[Brief description of the drawings]
FIG. 1 is a side view of an example of a liquid material injection adapter according to an embodiment of the present invention, disassembled into an adapter body and a liquid storage device, together with an air gun.
FIG. 2 is a cross-sectional view of the adapter main body shown in FIG.
FIG. 3 is an enlarged cross-sectional view showing a main part of an adapter main body in order to show a modified example of a small-diameter passage of the communication passage.
FIG. 4 is a cross-sectional view showing an enlarged main part of an adapter main body together with the flow of compressed gas in the communication path in order to explain the position where the liquid supply path is connected to the communication path.
FIG. 5 is an enlarged cross-sectional view showing a main part of an adapter body in order to show a modification of the continuous liquid supply path.
6 is a side view of the liquid storage device shown in FIG. 1. FIG.
FIG. 7 is a side view for explaining the operation of the liquid storage device shown in FIG.
FIG. 8 is a partial cross-sectional side view showing an example of how to use an example of the liquid jet adapter according to one embodiment of the present invention.
FIG. 9 is an enlarged cross-sectional view of the main part of the adapter main body together with the tip of the air gun in order to show a modification of the connection port.
FIG. 10 is a cross-sectional view showing an example of a liquid material injection adapter (particularly a connection port) according to another embodiment of the present invention.
FIG. 11 is a cross-sectional view showing an example of a liquid material injection adapter (particularly a connection port) according to still another embodiment of the present invention.
FIG. 12 is an enlarged cross-sectional view showing the main part of the adapter main body together with the tip of the air gun in order to show the operation when the packing part is provided in the connection port part.
FIG. 13 is a cross-sectional view showing a modified example of the liquid storage device.
14 is a cross-sectional view showing an example of a usage state of the liquid storage device shown in FIG.
15 is a cross-sectional view showing a configuration example of the liquid storage device shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid material injection adapter 2 Adapter main body 2A Main body part 3 Liquid storage device 4 Connection port part 4a Screw part 4b Opening part 5 Liquid material injection port part 6 Liquid storage material connection port part 6a Recessed part 6b Screw part 7 Communication path 7A Small diameter path 7B Large diameter passage 7C Stepped portion 8 Liquid material supply path 9 Tube member 11 Liquid storage device body 12 Body portion 13 Tube portion 14 Connection portion 21 Injection port contact opening 21a Tapered surface 22 Packing portion 23 Liquid material accommodation portion 24 50 Air gun 51 Injection port 52 Trigger part

Claims

A liquid injection adapter that can be connected to the injection port of the compressed gas supply means,
A connecting port portion detachably connected to an injection port of the compressed gas supply means, a liquid material injection port portion for injecting a liquid material, and a liquid storage device connecting port capable of detachably connecting a liquid storage device containing the liquid material When the compressed gas flows through the communication passage, the communication passage communicating between the connection portion, the connection port portion, the liquid material injection port portion, the communication passage, and the liquid storage device connection port portion. A liquid supply path capable of sucking the liquid, and
The communication passage is provided with a step portion at the intermediate portion, the connection port portion side of the step portion is a small diameter passage, and the liquid material injection port portion side of the step portion is a large diameter passage having a larger diameter than the small diameter passage,
The liquid supply path assumes a diffusion line of 45 ° in the vicinity of the stepped portion in the large-diameter passage, that is, from the opening of the small-diameter passage into the large-diameter passage, and the diffusion line is on the inner peripheral surface of the large-diameter passage. A liquid material injection adapter having a configuration that communicates with a portion closer to a step than a crossing position .

The liquid jet adapter according to claim 1, wherein the connection port portion includes a jet port abutting opening formed by forming a tapered surface that expands outward .

The liquid material according to claim 2, further comprising a packing portion that is interposed between the tapered surface and the injection port to enhance airtightness when the injection port of the compressed gas supply unit is brought into contact with the outside of the tapered surface. Injection adapter .

The liquid material injection adapter according to any one of claims 1 to 3, wherein a liquid storage device is connected to the liquid storage device connection port.

5. The liquid material injection adapter according to claim 4, wherein the liquid storage device has a configuration in which a liquid material containing portion made of a plastic film bag is housed in a shape retaining container made of metal or plastic.

A liquid storage device that can be connected to the storage device connection port of the liquid injection adapter according to any one of claims 1 to 4, comprising a plastic film bag in a shape retaining container made of metal or plastic. A liquid storage device having a configuration in which a liquid storage unit is stored .