JP3862079B2

JP3862079B2 - Trigger type liquid ejector

Info

Publication number: JP3862079B2
Application number: JP2002286823A
Authority: JP
Inventors: 義幸角田
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2002-01-31
Filing date: 2002-09-30
Publication date: 2006-12-27
Anticipated expiration: 2022-09-30
Also published as: JP2003290689A

Description

【０００１】
【発明の属する技術分野】
本発明は、トリガー式の液体噴出器に関する。
【０００２】
【従来の技術】
特開2001-10655号が示すように、射出筒前端部が形成する嵌合筒外面へ、ノズルキャップを回動自在に嵌合させると共に、射出筒前部とノズルキャップとの間に介在させて嵌合筒外面へ上下動自在に嵌合させたストッパ部材を、ノズルキャップの正方向回動で上昇し、かつ逆方向回動で下降可能に形成し、又射出筒前部から後方向への揺動が可能に、かつ前方付勢させて垂下させたトリガーに対して、上記ストッパ部材下部を、下降位置にあっては係合し、かつ上昇位置にあっては離脱して、該離脱位置でだけトリガー後方引き寄せ操作が可能としたトリガー式液体噴出器が知られている。
【０００３】
上記ノズルキャップは、正面から見てほぼ正三角形に形成されており、該キャップ外周面の一面が上方で水平に位置するとき、ノズル孔に連通する液体流路が閉じ、又ストッパ部材は下限に位置してトリガーの後方引寄せを阻止しているが、該状態からノズルキャップを回して該キャップの他の一面を上方へ移動させて水平としたとき、上記液体流路は開通すると共にストッパ部材は上限に達してトリガーの後方引寄せが可能となるよう設けている。
【０００４】
【発明が解決しようとする課題】
上記従来例では、ストッパ部材が下限に位置する、トリガー操作不能かつ液体通路閉塞状態から、ノズルキャップの回動開始と共にストッパ部材が上昇を開始し、ノズルキャップの回動角度が約１２０度となったとき、ストッパ部材が上限に達し、又その回動途中でトリガーからストッパ部材が次第に外れ、かつ液体通路が開通するよう設けていたから、ストッパ部材が上限に達する前にトリガーを誤って引くことが生じ易く、するとこのときトリガーとストッパ部材との係合が不完全となっていることから該係合部に無理を生じて損傷等を生じ易い。又上記液体通路も不完全な開通状態でトリガー操作がなされることで、液体噴出も不完全となり易い。
【０００５】
本発明は所定の位置からノズルキャップの回動を開始してもストッパ部材はまだ上昇せず、残り約２０度程度のノズルキャップの回動だけでストッパ部材が上昇するよう設けて、上記従来例欠点を除去できるよう設けることを主たる目的とする。
【０００６】
尚、既述従来例は、液体吐出路閉塞状態において、誤ってトリガー操作を行うとトリガーが多少弾性変形することから射出筒内液体が高圧化し、そのためノズルキャップを回しただけでその高圧液体が噴出することからかかる欠点を防止するため、液体吐出路閉塞時にあってはトリガーが液体噴出器一部に係合し、そのため引寄せ操作が不能となるよう設けたものであるが、その他の方法も考えられる。
【０００７】
例えば液体吐出路閉塞時にあっては、トリガーの引寄せ用指掛け部分の前に邪魔板が位置して、該液体噴出器が液体吐出路閉塞状態であることをトリガー操作者に知らせることが可能とすることもできる。
【０００８】
【課題を解決するための手段】
第１の手段として、射出筒３前端部外面へ嵌合させたノズルキャップ５を正逆両方向へ回動させることでノズル孔5bが開閉すると共に、射出筒前部外面へ嵌合させたストッパ部材の摺動縦板11が上下動して、ストッパ部材上昇時にはトリガー７の引寄せ操作が可能に、かつ下降時には引寄せ操作が不能としたトリガー式液体噴出器において、
上記摺動縦板11が有する射出筒遊挿用嵌合孔13を、射出筒を挿通させたままで摺動縦板11が上下動可能に設けた縦長孔部分13a の下部一側を側外方へ拡開した形状となし、該拡開孔部分13b の上面が形成する下向き段部13c を、ノズルキャップ後面から突出して嵌合孔13内に位置する係合子5aが、ノズル孔開方向への回動により押上げしてストッパ部材10を上限まで上昇させ、かつノズル孔閉方向への回動により拡開孔部分13b 下面を係合子5aが押下げないしストッパ部材が自重で下降することで、ストッパ部材10が下限まで下降可能に形成した。
【０００９】
第２の手段として、上記第１の手段を有すると共に上記ノズルキャップ５を、正面からみてほぼ正三角形状に形成し、
嵌合孔13上面が射出筒３上面に接したストッパ部材10下限正位置において、ノズルキャップ外周面の第１面5cがノズルキャップ上面へほぼ水平に位置すると共に、嵌合孔13下面が射出筒３下面に接したストッパ部材上限位置において、上記第１面側方の第２面5dがノズルキャップ上面へほぼ水平に位置するよう設けた。
【００１０】
第３の手段として、上記第１又は第２の手段を有すると共に上記摺動縦板11の左右両側面をほぼ鉛直にすると共に該摺動縦板を嵌合させた射出筒部分の後部外面から張出し板21を突出し、かつ該張出し板の左右両側部から前方へ、内面に縦溝22,22 を縦設したガイド板23,23 を突出して、これ等両縦溝内へ、上記摺動縦板の左右両側部を上下動自在に嵌合させた。
【００１１】
第４の手段として、上記第１、第２又は第３の手段を有すると共に上記ストッパ部材10の摺動縦板11下端から後方突出させた第１係合板12を、上板31の左右方向中間部からガイド32を垂下する断面Ｔ字状で、かつ上板31の左右両後部からガイド後端部外面に沿って第２係合板33,33 を垂下し、これ等上板、ガイド、第２係合板の各後面を連続面として形成した拡大後面34の左右方向中間部から案内子35を後方突出して形成し、
又トリガー７の上方一部を左右側壁41,41 で形成して、これ等両側壁内面に横設した内向きフランジ42,42 内端から凹字形状板43を垂下させて形成し、
更にシリンダ６上面と射出筒３下面とを左右一対の補強板51,51 で連結してこれ等両補強板前面を摺動縦板11と平行に設け、
ストッパ部材10が下限に位置する状態で、ガイド32は凹字形状板43内に位置し、上板31の左右両部は両内向きフランジ42,42 上へ、第２係合板33,33 前面は両内向きフランジ42,42 後面へ、それぞれ接し、又案内子35は両補強板51,51 間に嵌合すると共に、拡大後面34の左右両部は両補強板51,51 前面へ接するよう設けた。
【００１７】
【発明の実施の形態】
以下まず図１から図８が示す実施形態について説明する。尚該実施形態は、ノズルキャップの正逆両方向への回動によりストッパ部材の摺動縦板が上下動し、下降位置にあっては該ストッパ部材一部へトリガーが係合して、該トリガー操作が不能となる、既述従来例の欠点除去を目的とするものである。
【００１８】
以下まず従来公知の構造について図面を参考として簡単に説明すると、１は容器体、２は該容器体の口頸部へ嵌合させた装着筒で、該装着筒内からは主筒を起立し、該主筒上端から射出筒３を前方突出している。該射出筒前端部は嵌合筒４とし、該嵌合筒外面へ正面から見てほぼ三角形状のノズルキャップ５を回動自在に嵌合させている。又主筒上面の射出筒後部下面からはシリンダ６を下前方へ傾斜させて突設している。更に射出筒３の前部からは後方向への揺動が可能にトリガー７を垂下し、該トリガー後面から上記シリンダ内へ前方付勢して嵌合されたプランジャ８用押込み板９を突出する。
【００１９】
更に摺動縦板11下端から第１係合板12を後方突出するストッパ部材10の摺動縦板11を、図３のように該手動縦板に穿設した嵌合孔13を嵌合筒４の基部外面へ上下動自在に遊嵌させて垂下している。又ノズルキャップ５の後端面一部からは、図３が示す係合子5aを突設して上記嵌合孔13内へ遊挿させており、ノズルキャップ５を回動させることで係合子5aが嵌合筒４外面に沿って移動し、図３とは異なるが嵌合筒上面の上方へ位置したとき、摺動縦板11が押し上げられ、又係合子5aが嵌合筒４の側外方へ移動することで摺動縦板11が下降するよう設けている。
【００２０】
ストッパ部材10下降時にあっては、摺動縦板11下端から後方突出する第１係合板12一部がトリガー一部に係合して、該トリガー後方引寄せによるポンプ操作が不能であり、かつこのとき、正面三角形状をなすノズルキャップ５外周面の第１面5cは上面へほぼ水平に位置し、このとき、ノズルキャップが有するノズル孔5bと連通する通路は閉塞状態にある。
【００２１】
又ストッパ部材10が上限まで引上げられたとき、上記係合が外れてトリガー７の後方引寄せが可能となり、かつこのときノズル孔5bへの通路は開通されるよう設けている。
【００２２】
本発明の第１の改良点は、図３が示すようにストッパ部材縦動縦板11に穿設した嵌合孔13を、嵌合筒４を挿通させたままで摺動縦板11が上下動可能な縦長とすると共に該縦長孔部分13a の下部一側に、該下部一側を側外方へ拡開した形状の拡開孔部分13b を付設した形状とし、又その拡開孔部分上面が形成する下向き段部13c を、ノズルキャップ５後面から突出する係合子5aが、ノズルキャップ正方向への回動により同図Ｄが示すように押上げ、このとき嵌合孔13下面は嵌合筒４下面へ接して上限となると共に、このときノズルキャップの第２面5dがノズルキャップ上面へほぼ水平に位置するよう設けたことである。
【００２３】
そのため、同図Ａが示すように、ストッパ部材一部としての摺動縦板11が有する嵌合孔13上面が嵌合筒４上面に接し、かつノズルキャップ外面を形成する三面のうちの第１面5cがノズルキャップの上面へほぼ水平に位置する摺動縦板11下限正位置において、ノズルキャップ後面から突出して嵌合孔13内へ突出する係合子5aは縦長孔部分下端の非拡開孔側面に接し、該状態から、同図Ｂ、同図Ｃのようにノズルキャップを正方向へ回すことで上記係合子5aは下向き段部13c 下面に接し、該位置から更に回動させることで、同図Ｄが示すように係合子が下向き段部13c を介して摺動縦板11を押上げ、このとき嵌合孔下面が嵌合筒４下面に接して上限となり、かつこのとき上記第１面5c側方のノズルキャップ第２面5dがノズルキャップ上面へほぼ水平に位置する。
【００２４】
又該状態から同図Ｅのようにノズルキャップ５を逆方向へ回すと、上記係合子5aが拡開孔部分13b の下面13d を押下げすることで、ないしはストッパ部材が自重により下降することで、嵌合孔上面が嵌合筒４上面へ接する下限まで下降する。該状態から同図Ａが示す下限正位置までノズルキャップ５を回し、該ノズルキャップ第１面5cを上面へ位置させ水平とする。このとき係合子5aは嵌合孔13の非拡開孔側の側面に接して停止する。
【００２５】
上記のように係合子5aが下向き段部13c 下面に接した図３Ｃの状態から、同図Ｄの押上げ完了までの、ノズルキャップ回動角度は約２０度でよく、係合子5aで拡開孔下面13d を押下げて摺動縦板11を下降させるための回動角度も約２０度程度で足りる。
【００２６】
本発明の第２の改良点は、図７が示すように摺動縦板11を嵌合させた射出筒前端部としての嵌合筒４の後部外面から張出し板21を突出し、該張出し板の左右両側から前方へ、内面に縦溝22,22 を縦設したガイド板23,23 を突出して、これ等両溝内へ摺動縦板11の左右両側部を上下動自在に嵌合させたことである。摺動縦板11は垂直に上下動できるよう、その左右両側面を鉛直としており、該左右側面と接する縦溝底面該当部分もほぼ鉛直とする。
【００２７】
本発明第３の改良点は、上記摺動縦板下端から後方突出する第１係合板12も、ほぼ垂直に上下動するよう設けたことである。
【００２８】
そのため第１係合板12は、上板31の左右方向中間部から図４および図５が示すようにガイド32を垂下する、断面Ｔ字状に形成すると共に、上板の左右両後部からガイド後端部外面に沿って第２係合板33,33 を垂下し、更にこれ等上板31、ガイド32、第２係合板33,33 の各後面を連続面として形成した拡大後面34の左右方向中間部から案内子35を後方突出して形成している。
【００２９】
又図８が示すようにトリガー７の上方一部を左右側壁41,41 だけで形成し、これ等両側壁内面に横設した内向きフランジ42,42 両端から凹字形状板43を垂下させて形成している。
【００３０】
更に図１、図２のようにシリンダ６上面と射出筒３下面とを左右一対の補強板51,51 で連結して、これ等両補強板前面を、シリンダ前端上方よりも前方で摺動縦板11と平行に設けている。
【００３１】
このようにしてストッパ部材10が下限に位置する状態では図１が示すようにガイド32は凹字形状板43内に位置し、上板31の左右両部は内向きフランジ42上へ、第２係合板33,33 前面は両内向きフランジ後面へ、それぞれ接し、又案内子35は両補強板51,51 間に嵌合すると共に、拡大後面34の左右両部は両補強板51,51 の前面へ接するよう設けた。
【００３２】
よって該図１が示す状態では、第２係合板33,33 前面が内向きフランジ42後面に接し、かつ拡大後面34の左右両部が両補強板51,51 前面へ接しているため、トリガー７の後方引寄せは不能である。
【００３３】
既述ノズルキャップ５回動により図２が示すようにストッパ部材10が上昇すると、内向きフランジ42,42 後面から第２係合板33,33 が外れるためトリガー７の後方引寄せが可能となる。
【００３４】
図９から図１２は本発明の参考例を示す。この例は、既述の如く邪魔板を用いて液体噴出器が液体吐出路閉塞状態であることをトリガー操作者に知らせるタイプのものである。
【００３５】
該実施形態にあっては、発泡機構付き筒部の外面からレバーを垂下する回動部材61を設け、その筒部をノズルキャップ外面へ回動不能に嵌合させると共に、ノズルキャップがノズル孔5bを閉塞する回動位置にあってはレバーが垂下して、該レバー一部がトリガー７の側面へ接すると共に、レバー前縁がトリガーの指掛け部7aの前方へ突出するよう設ける。図示例で筒部62は図１０が示すようにノズルキャップ５と同様に、正面からみてほぼ三角形状としており、その筒部前端の各辺長手方向中間部から筒部前端面中心方向へ支持板63を突出させ、それ等支持板先端で円筒64を保持させ、該円筒前端面から該前端面の中心へ複数の細棒65をほぼ等間隔に突出させ、それ等細棒のうち、左右対向位置から突出する細棒先端間を細片66で連繋させている。上記円筒64後端部は、ノズル孔5bを中心部に穿設するノズルキャップ前壁の前面からノズル孔を囲んで前方突出する一部切欠き部67付きの嵌合筒68の前部外面へ嵌合させており、それ等円筒64と細棒65と細片66とで発泡機構を形成している。尚ノズルキャップ５は公知のスピン機構を有し、該スピン機構を介してノズル孔5bから高速回転により噴霧された霧は、上記円筒64の前部内面、又細棒65に衝突し、円筒内空気と混合し発泡して筒部62前方へ放出される。円筒64内へは上記複数の支持板63の間、又円筒64とノズルキャップ前壁との間、更に嵌合筒68の切欠き部67を通って外気が流入する。尚発泡機構は円筒64前面へ発泡ネットを貼設して形成することも出来る。上記支持板63の内端部前面には前面および左右両面開口の溝69を穿設することが望ましい。
【００３６】
レバー70は各図が示すように、上記三角形状筒部62の一辺を上方へほぼ水平に位置させた状態で、図右辺の下部から板部71を垂下し、その板部の後縁からトリガー前面の側部への当接用第１係合板72を突出させ、又板部71の下部後面からは、トリガー側面への第２係合板73を後方突出している。
【００３７】
回動部材61は上記のようにレバー70を垂下する状態でノズル孔5b閉塞状態にあるノズルキャップ５外面へ回動不能に嵌合させ、上記第１係合板72をトリガー７前面の側部へ、又第２係合板73をトリガー側面へ当接させる。このとき板部71の前部はトリガーの指掛け部7a側面の前方へ突出する。そのレバー70をノズルキャップ５と共に回動させ、該ノズルキャップがノズル孔5b閉塞位置へ移動したとき、レバー70はノズルキャップ５の側外方へ突出する。該回動部材61は透明な合成樹脂材で成形するとよい。又合成樹脂材で一体成形するとよい。
【００３８】
回動部材61を除く該第２実施形態のトリガー式液体噴出器は第１実施形態の場合とほぼ同じであり、同一符号を付することで説明は省略する。
【００３９】
【発明の効果】
本発明は、既述構成とするものであり、請求項１記載のようにすることで、従来ノズルキャップを約１２０度回すことで上下動させていたストッパ部材を、約２０度の回動だけで上下動させることが可能となり、よってストッパ部材の上下動が不完全な状態でのトリガー操作を防止することが出来る。
【００４０】
請求項２記載のようにすることで、ストッパ部材下限でのノズルキャップの正位置を定めることが出来る機能を請求項１記載の液体噴出器に持たせることが出来る。
【００４１】
請求項３のようにすることで、請求項１又は２記載液体噴出器のストッパ部材の上下動をスムーズに行うことが出来る。
【００４２】
請求項４のようにすることで、請求項１、２又は３記載液体噴出器のストッパ部材下降時におけるトリガー引寄せ防止を確実かつ安全に行うことが出来る。
【図面の簡単な説明】
【図１】本発明液体噴出容器の一部切欠き側面図である。
【図２】液体噴出可能状態とした、図１液体噴出器の一部切欠き側面図である。
【図３】図１ノズルキャップとストッパ部材との位置関係を示す説明図である。
【図４】図１ストッパ部材の正面図である。
【図５】図４ストッパ部材の側面図である。
【図６】図４ストッパ部材の上面図である。
【図７】図１ストッパ部材取付け状態で示す射出筒前部の拡大上面図である。
【図８】図１トリガーの後面図である。
【図９】本発明の参考例である、一部切欠きの液体噴出容器の側面図である。
【図１０】図９容器に使用する主要部材の正面図である。
【図１１】図１０部材の側面図である。
【図１２】図１０部材の底面図である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a trigger type liquid ejector.
[0002]
[Prior art]
As shown in Japanese Patent Application Laid-Open No. 2001-10655, the nozzle cap is rotatably fitted to the outer surface of the fitting cylinder formed by the front end of the injection cylinder, and is interposed between the front of the injection cylinder and the nozzle cap. A stopper member fitted to the outer surface of the fitting cylinder so as to be movable up and down is formed so that it can be raised by rotating the nozzle cap in the forward direction and can be lowered by turning in the reverse direction. The lower part of the stopper member is engaged in the lowered position and detached in the raised position with respect to the trigger that is swingable and biased forward, and is detached in the raised position. There is known a trigger type liquid ejector capable of pulling back the trigger only at the top.
[0003]
The nozzle cap is formed in a substantially equilateral triangle when viewed from the front, and when one surface of the outer peripheral surface of the cap is positioned horizontally above, the liquid flow path communicating with the nozzle hole is closed, and the stopper member is at the lower limit. It is positioned to prevent the trigger from being pulled backward, but when the nozzle cap is turned from this state and the other surface of the cap is moved upward to make it horizontal, the liquid channel opens and a stopper member Is provided so that the upper limit can be reached and the trigger can be pulled backward.
[0004]
[Problems to be solved by the invention]
In the above-described conventional example, the stopper member starts to rise from the position where the stopper member is located at the lower limit, the trigger operation is impossible and the liquid passage is closed, and the nozzle cap starts to rotate, and the rotation angle of the nozzle cap becomes about 120 degrees. When the stopper member reaches the upper limit, and the stopper member is gradually removed from the trigger during the rotation, and the liquid passage is opened, the trigger member may be accidentally pulled before the stopper member reaches the upper limit. In this case, since the engagement between the trigger and the stopper member is incomplete at this time, the engaging portion is forced to be damaged and easily damaged. In addition, the liquid operation is likely to be incomplete because the liquid passage is also triggered in an incompletely opened state.
[0005]
In the present invention, the stopper member is not raised even when the nozzle cap starts to rotate from a predetermined position, and the stopper member is raised only by the rotation of the remaining approximately 20 degrees of the nozzle cap. The main purpose is to be able to eliminate defects.
[0006]
In the above-described conventional example, when the trigger operation is mistakenly performed in the liquid discharge path blockage state, the trigger is somewhat elastically deformed, so that the liquid in the injection cylinder becomes high pressure. In order to prevent such drawbacks from being ejected, the trigger is engaged with a part of the liquid ejector when the liquid discharge path is closed, so that the drawing operation cannot be performed. Is also possible.
[0007]
For example there during the liquid discharge passage obstruction is positioned baffles before pull pulling finger-hook portion of the trigger, it is possible to inform the triggering operator liquid ejector is a liquid discharge passage closed You can also
[0008]
[Means for Solving the Problems]
As a first means, the nozzle cap 5 fitted to the outer surface of the front end portion of the injection cylinder 3 is rotated in both forward and reverse directions, whereby the nozzle hole 5b is opened and closed, and the stopper member fitted to the outer surface of the injection cylinder front portion. In the trigger type liquid ejector in which the sliding vertical plate 11 moves up and down, the trigger member can be pulled when the stopper member is raised, and the pulling operation is impossible when the stopper is lowered,
The sliding vertical plate 11 has the injection cylinder loose insertion fitting hole 13 with the injection vertical tube inserted into the insertion hole 13 so that the sliding vertical plate 11 can move up and down. The downwardly extending step portion 13c formed by the upper surface of the expanded hole portion 13b is protruded from the rear surface of the nozzle cap, and the engaging element 5a located in the fitting hole 13 is formed in the opening direction of the nozzle hole. By pushing up by rotating to raise the stopper member 10 to the upper limit, and by rotating in the nozzle hole closing direction, the lower surface of the expanded hole portion 13b is pushed down by the engaging element 5a or the stopper member is lowered by its own weight, The stopper member 10 is formed so that it can be lowered to the lower limit.
[0009]
As a second means, the nozzle cap 5 having the first means is formed in a substantially equilateral triangle shape when viewed from the front,
At the lower limit positive position of the stopper member 10 where the upper surface of the fitting hole 13 is in contact with the upper surface of the injection cylinder 3, the first surface 5c of the outer peripheral surface of the nozzle cap is positioned substantially horizontally to the upper surface of the nozzle cap, and the lower surface of the fitting hole 13 is the injection cylinder. 3 The upper surface of the stopper member in contact with the lower surface is provided so that the second surface 5d on the side of the first surface is positioned substantially horizontally on the upper surface of the nozzle cap.
[0010]
As a third means, from the rear outer surface of the injection cylinder portion having the first or second means and having both the left and right side surfaces of the sliding vertical plate 11 substantially vertical and fitted with the sliding vertical plate The protruding plate 21 protrudes and the guide plates 23 and 23 having the longitudinal grooves 22 and 22 vertically formed on the inner surface protrude from the left and right sides of the protruding plate forward, and into the longitudinal grooves, the sliding vertical The left and right sides of the plate were fitted to move up and down.
[0011]
As a fourth means, the first engaging plate 12 having the first, second or third means and protruding rearward from the lower end of the sliding vertical plate 11 of the stopper member 10 is provided in the middle of the upper plate 31 in the left-right direction. The second engagement plates 33 and 33 are suspended from the left and right rear portions of the upper plate 31 along the outer surfaces of the rear ends of the guides. The guide 35 is formed so as to protrude rearward from the intermediate portion in the left-right direction of the enlarged rear surface 34 formed as each continuous rear surface of the engagement plate,
Further, an upper part of the trigger 7 is formed by left and right side walls 41, 41, and a concave plate 43 is suspended from the inner ends of the inward flanges 42, 42 horizontally provided on the inner surfaces of both side walls.
Further, the upper surface of the cylinder 6 and the lower surface of the injection cylinder 3 are connected by a pair of left and right reinforcing plates 51, 51, and the front surfaces of these both reinforcing plates are provided in parallel with the sliding vertical plate 11,
With the stopper member 10 positioned at the lower limit, the guide 32 is positioned in the concave plate 43, and the left and right portions of the upper plate 31 are placed on the inward flanges 42 and 42, and the front surfaces of the second engagement plates 33 and 33. Is in contact with the rear surfaces of both inward flanges 42 and 42, and the guide 35 is fitted between the two reinforcing plates 51 and 51, and the left and right parts of the enlarged rear surface 34 are in contact with the front surfaces of both reinforcing plates 51 and 51. Provided.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment shown in FIGS. 1 to 8 will be described first. In this embodiment, when the nozzle cap rotates in both forward and reverse directions, the sliding vertical plate of the stopper member moves up and down, and when it is in the lowered position, the trigger is engaged with a part of the stopper member. The purpose is to eliminate the drawbacks of the conventional example described above, which makes the operation impossible .
[0018]
Hereinafter, a conventional well-known structure will be briefly described with reference to the drawings. Reference numeral 1 denotes a container body, 2 denotes a mounting cylinder fitted to the mouth and neck of the container body, and the main cylinder stands up from the mounting cylinder. The injection cylinder 3 protrudes forward from the upper end of the main cylinder. The front end portion of the injection cylinder is a fitting cylinder 4, and a substantially triangular nozzle cap 5 is rotatably fitted to the outer surface of the fitting cylinder when viewed from the front. Further, the cylinder 6 is provided so as to be inclined downward and forward from the lower surface of the rear portion of the injection cylinder on the upper surface of the main cylinder. Further, the trigger 7 is suspended from the front portion of the injection cylinder 3 so as to be swingable in the rear direction, and the pushing plate 9 for the plunger 8 that is fitted forwardly into the cylinder is projected from the rear surface of the trigger. .
[0019]
Further, the sliding vertical plate 11 of the stopper member 10 projecting backward from the first engaging plate 12 from the lower end of the sliding vertical plate 11 is inserted into the fitting cylinder 4 through the fitting hole 13 formed in the manual vertical plate as shown in FIG. It hangs down and freely fits to the outer surface of the base. Further, an engaging element 5a shown in FIG. 3 is projected from a part of the rear end surface of the nozzle cap 5 and is loosely inserted into the fitting hole 13, and the engaging element 5a is turned by rotating the nozzle cap 5. When it moves along the outer surface of the fitting cylinder 4 and is positioned above the upper face of the fitting cylinder, the sliding vertical plate 11 is pushed up, and the engaging element 5a is moved outwardly from the fitting cylinder 4 side. The sliding vertical plate 11 is provided so as to move downward.
[0020]
When the stopper member 10 is lowered, a part of the first engagement plate 12 protruding rearward from the lower end of the sliding vertical plate 11 is engaged with a part of the trigger, and the pump operation by the rearward pulling of the trigger is impossible, and At this time, the first surface 5c of the outer peripheral surface of the nozzle cap 5 having a front triangular shape is positioned substantially horizontally on the upper surface, and at this time, the passage communicating with the nozzle hole 5b of the nozzle cap is in a closed state.
[0021]
Further, when the stopper member 10 is pulled up to the upper limit, the engagement is released and the trigger 7 can be pulled backward, and at this time, the passage to the nozzle hole 5b is opened.
[0022]
As shown in FIG. 3, the first improvement of the present invention is that the sliding vertical plate 11 moves up and down while the fitting tube 13 is inserted through the fitting hole 13 formed in the stopper member vertical moving vertical plate 11. The vertically elongated hole portion 13a has a shape in which an expanded hole portion 13b having a shape in which the lower one side is expanded outward is attached to the lower side of the vertically elongated hole portion 13a. The engaging step 5c that protrudes from the rear surface of the nozzle cap 5 pushes up the formed downward stepped portion 13c as shown in FIG. 4D by rotating in the positive direction of the nozzle cap. 4 is the upper limit in contact with the lower surface, and at this time, the second surface 5d of the nozzle cap is provided so as to be positioned substantially horizontally on the upper surface of the nozzle cap.
[0023]
Therefore, as shown in FIG. 1A, the upper surface of the fitting hole 13 of the sliding vertical plate 11 as a part of the stopper member is in contact with the upper surface of the fitting cylinder 4, and the first of the three surfaces forming the outer surface of the nozzle cap. The engaging element 5a that protrudes from the rear surface of the nozzle cap and protrudes into the fitting hole 13 at the lower limit positive position of the sliding vertical plate 11 in which the surface 5c is positioned substantially horizontally on the upper surface of the nozzle cap is a non-expanded hole at the lower end of the vertically elongated hole portion. By contacting the side surface and rotating the nozzle cap in the forward direction as shown in FIGS. B and C, the engaging element 5a is in contact with the lower surface of the downward stepped portion 13c and further rotated from this position. As shown in FIG. 4D, the engaging element pushes up the sliding vertical plate 11 through the downward stepped portion 13c. At this time, the lower surface of the fitting hole comes into contact with the lower surface of the fitting tube 4 and becomes the upper limit. The nozzle cap second surface 5d on the side of the surface 5c is positioned almost horizontally on the upper surface of the nozzle cap. The
[0024]
When the nozzle cap 5 is rotated in the reverse direction as shown in FIG. E from this state, the engaging element 5a pushes down the lower surface 13d of the expanded hole portion 13b, or the stopper member descends by its own weight. The fitting hole upper surface is lowered to the lower limit where it contacts the upper surface of the fitting cylinder 4. From this state, the nozzle cap 5 is turned to the lower limit positive position shown in FIG. A, and the nozzle cap first surface 5c is positioned on the upper surface to be horizontal. At this time, the engaging element 5a stops in contact with the side surface of the fitting hole 13 on the non-expanded hole side.
[0025]
As described above, the nozzle cap rotation angle from the state shown in FIG. 3C where the engaging element 5a is in contact with the lower surface of the downward stepped portion 13c to the completion of pushing up shown in FIG. A rotation angle for lowering the bottom surface 13d of the hole to lower the sliding vertical plate 11 is about 20 degrees.
[0026]
As shown in FIG. 7, the second improvement of the present invention is that the projecting plate 21 protrudes from the rear outer surface of the fitting tube 4 as the front end of the injection tube with which the sliding vertical plate 11 is fitted. From left and right sides forward, the guide plates 23 and 23 with vertical grooves 22 and 22 formed on the inner surface protruded, and the left and right sides of the sliding vertical plate 11 were fitted into these grooves so as to be movable up and down. That is. The left and right side surfaces of the sliding vertical plate 11 are vertical so that the vertical plate 11 can move vertically, and the corresponding part of the vertical groove bottom surface in contact with the left and right side surfaces is also substantially vertical.
[0027]
The third improvement of the present invention is that the first engagement plate 12 protruding rearward from the lower end of the sliding vertical plate is also provided to move up and down substantially vertically.
[0028]
Therefore, the first engagement plate 12 is formed in a T-shaped section that hangs down the guide 32 as shown in FIGS. 4 and 5 from the intermediate portion in the left-right direction of the upper plate 31 and is guided from both the left and right rear portions of the upper plate. The second engaging plates 33 and 33 are suspended along the outer surface of the end portion, and further in the horizontal direction of the enlarged rear surface 34 formed by using the rear surfaces of the upper plate 31, the guide 32 and the second engaging plates 33 and 33 as continuous surfaces. A guide 35 is formed to protrude rearward from the portion.
[0029]
Further, as shown in FIG. 8, the upper part of the trigger 7 is formed only by the left and right side walls 41, 41, and the inward flanges 42, 42 laid horizontally on the inner surfaces of both side walls are suspended from both ends of the concave plate 43. Forming.
[0030]
Further, as shown in FIGS. 1 and 2, the upper surface of the cylinder 6 and the lower surface of the injection cylinder 3 are connected by a pair of left and right reinforcing plates 51 and 51, and the front surfaces of these both reinforcing plates are slid vertically in front of the upper front end of the cylinder. It is provided in parallel with the plate 11.
[0031]
In this way, when the stopper member 10 is located at the lower limit, the guide 32 is located in the concave plate 43 as shown in FIG. The front surfaces of the engagement plates 33 and 33 are in contact with the rear surfaces of both inward flanges, and the guide 35 is fitted between the two reinforcement plates 51 and 51. Provided to contact the front.
[0032]
Therefore, in the state shown in FIG. 1, the front surfaces of the second engagement plates 33 and 33 are in contact with the rear surface of the inward flange 42, and the left and right portions of the enlarged rear surface 34 are in contact with the front surfaces of both the reinforcing plates 51 and 51. Cannot be pulled backwards.
[0033]
When the stopper member 10 is lifted as shown in FIG. 2 by the rotation of the nozzle cap 5 described above, the second engagement plates 33 and 33 are detached from the rear surfaces of the inward flanges 42 and 42, so that the trigger 7 can be pulled backward.
[0034]
9 to 12 show a reference example of the present invention . In this example , as described above, the trigger operator is informed using the baffle plate that the liquid ejector is in the liquid discharge path blockage state .
[0035]
In this embodiment, a rotating member 61 is provided to suspend the lever from the outer surface of the cylindrical portion with the foaming mechanism, and the cylindrical portion is non-rotatably fitted to the outer surface of the nozzle cap, and the nozzle cap is connected to the nozzle hole 5b. In the pivot position that closes the lever, the lever hangs down so that a part of the lever comes into contact with the side surface of the trigger 7 and the front edge of the lever protrudes forward of the finger hooking portion 7a of the trigger. In the illustrated example, as shown in FIG. 10, the cylindrical portion 62 has a substantially triangular shape when viewed from the front, like the nozzle cap 5, and the support plate extends from the middle portion of each side of the front end of the cylindrical portion toward the center of the front end surface of the cylindrical portion. 63 is protruded, the cylinder 64 is held at the front end of the support plate, and a plurality of thin rods 65 protrude from the front end surface of the cylinder to the center of the front end surface at substantially equal intervals. The ends of the thin rods protruding from the position are connected by the strips 66. The rear end portion of the cylinder 64 extends from the front surface of the front wall of the nozzle cap that has the nozzle hole 5b in the center thereof to the front outer surface of the fitting cylinder 68 with a partially cutout portion 67 that protrudes forward around the nozzle hole. The cylinder 64, the thin bar 65, and the thin piece 66 form a foaming mechanism. The nozzle cap 5 has a known spin mechanism, and the mist sprayed by high-speed rotation from the nozzle hole 5b through the spin mechanism collides with the inner surface of the front part of the cylinder 64 or the thin rod 65, and the inside of the cylinder It is mixed with air and foamed and discharged to the front of the cylindrical portion 62. Outside air flows into the cylinder 64 through the plurality of support plates 63, between the cylinder 64 and the nozzle cap front wall, and through the notch 67 of the fitting cylinder 68. The foaming mechanism can also be formed by attaching a foam net to the front surface of the cylinder 64. Desirably, a front surface and a groove 69 having both left and right openings are formed in the front surface of the inner end portion of the support plate 63.
[0036]
As shown in each figure, the lever 70 is suspended from the lower part of the right side of the figure with one side of the triangular cylindrical part 62 positioned almost horizontally upward, and is triggered from the rear edge of the plate part. The first engaging plate 72 for contact with the side portion of the front surface is protruded, and the second engaging plate 73 to the trigger side surface protrudes backward from the lower rear surface of the plate portion 71.
[0037]
The rotating member 61 is non-rotatably fitted to the outer surface of the nozzle cap 5 in the closed state of the nozzle hole 5b when the lever 70 is suspended as described above, and the first engaging plate 72 is moved to the side of the front surface of the trigger 7. Further, the second engagement plate 73 is brought into contact with the side surface of the trigger. At this time, the front part of the plate part 71 protrudes forward of the side surface of the finger-fitting part 7a of the trigger. When the lever 70 is rotated together with the nozzle cap 5 and the nozzle cap moves to the nozzle hole 5b closing position, the lever 70 protrudes outward from the nozzle cap 5 side. The rotating member 61 may be formed of a transparent synthetic resin material. Moreover, it is good to integrally mold with synthetic resin material.
[0038]
The trigger type liquid ejector of the second embodiment excluding the rotating member 61 is substantially the same as that of the first embodiment, and the description thereof is omitted by attaching the same reference numerals.
[0039]
【The invention's effect】
According to the present invention, the stopper member that has been moved up and down by rotating the nozzle cap by about 120 degrees is rotated by about 20 degrees. Thus, it is possible to prevent the trigger operation when the stopper member is not fully moved up and down.
[0040]
According to the second aspect, the liquid ejector according to the first aspect can have a function of determining the normal position of the nozzle cap at the lower limit of the stopper member.
[0041]
By making it like Claim 3, the vertical movement of the stopper member of the liquid ejector of Claim 1 or 2 can be performed smoothly.
[0042]
By making it like Claim 4, the trigger attraction | suction prevention at the time of the stopper member fall of Claim 1, 2, or 3 can be performed reliably and safely.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view of a liquid ejection container of the present invention.
2 is a partially cutaway side view of the liquid ejector of FIG. 1 in a liquid ejectable state.
FIG. 3 is an explanatory diagram showing a positional relationship between a nozzle cap and a stopper member.
FIG. 4 is a front view of the stopper member.
FIG. 5 is a side view of the stopper member.
6 is a top view of the stopper member. FIG.
FIG. 7 is an enlarged top view of the front portion of the injection cylinder shown with the stopper member attached.
FIG. 8 is a rear view of the trigger of FIG. 1;
FIG. 9 is a side view of a partially-cut liquid ejection container, which is a reference example of the present invention .
FIG. 10 is a front view of main members used in the container of FIG. 9;
FIG. 11 is a side view of the member shown in FIG.
12 is a bottom view of the member in FIG. 10. FIG.

Claims

射出筒３前端部外面へ嵌合させたノズルキャップ５を正逆両方向へ回動させることでノズル孔5bが開閉すると共に、射出筒前部外面へ嵌合させたストッパ部材の摺動縦板11が上下動して、ストッパ部材上昇時にはトリガー７の引寄せ操作が可能に、かつ下降時には引寄せ操作が不能としたトリガー式液体噴出器において、上記摺動縦板11が有する射出筒遊挿用嵌合孔13を、射出筒を挿通させたままで摺動縦板11が上下動可能に設けた縦長孔部分13a の下部一側を側外方へ拡開した形状となし、該拡開孔部分13b の上面が形成する下向き段部13c を、ノズルキャップ後面から突出して嵌合孔13内に位置する係合子5aが、ノズル孔開方向への回動により押上げしてストッパ部材10を上限まで上昇させ、かつノズル孔閉方向への回動により拡開孔部分13b 下面を係合子5aが押下げないしストッパ部材が自重で下降することで、ストッパ部材10が下限まで下降可能に形成したことを特徴とするトリガー式液体噴出器。 By rotating the nozzle cap 5 fitted to the outer surface of the front end of the injection cylinder 3 in both forward and reverse directions, the nozzle hole 5b opens and closes, and the sliding vertical plate 11 of the stopper member fitted to the outer surface of the front of the injection cylinder 3 In the trigger type liquid ejector in which the pulling operation of the trigger 7 can be performed when the stopper member is raised and the pulling operation is not possible when the stopper member is lowered, the sliding vertical plate 11 has a sliding cylinder 11 The fitting hole 13 has a shape in which the lower one side of the vertically long hole portion 13a provided so that the sliding vertical plate 11 can be moved up and down with the injection cylinder inserted is widened outward, and the widened hole portion. The downwardly extending step 13c formed by the upper surface of 13b protrudes from the rear surface of the nozzle cap and the engaging element 5a located in the fitting hole 13 pushes up the stopper member 10 to the upper limit by rotating in the nozzle hole opening direction. The lower surface of the expanded hole portion 13b is lifted and rotated in the nozzle hole closing direction. By engaging member 5a is pressed down to the stopper member is lowered by its own weight, the triggering liquid ejectors stopper member 10 is characterized in that the lowerable formed to the lower limit.

上記ノズルキャップ５を、正面からみてほぼ正三角形状に形成し、嵌合孔13上面が射出筒３上面に接したストッパ部材10下限正位置において、ノズルキャップ外周面の第１面5cがノズルキャップ上面へほぼ水平に位置すると共に、嵌合孔13下面が射出筒３下面に接したストッパ部材上限位置において、上記第１面側方の第２面5dがノズルキャップ上面へほぼ水平に位置するよう設けたことを特徴とする、請求項１記載のトリガー式液体噴出器。 The nozzle cap 5 is formed in a substantially regular triangular shape when viewed from the front, and the first surface 5c of the outer peripheral surface of the nozzle cap is the nozzle cap at the lower limit positive position of the stopper member 10 where the upper surface of the fitting hole 13 is in contact with the upper surface of the injection cylinder 3 The second surface 5d on the side of the first surface is positioned substantially horizontally on the upper surface of the nozzle cap at the stopper member upper limit position where the lower surface of the fitting hole 13 is in contact with the lower surface of the injection cylinder 3 while being positioned substantially horizontally on the upper surface. The trigger type liquid ejector according to claim 1, wherein the trigger type liquid ejector is provided.

上記摺動縦板11の左右両側面をほぼ鉛直にすると共に該摺動縦板を嵌合させた射出筒部分の後部外面から張出し板21を突出し、かつ該張出し板の左右両側部から前方へ、内面に縦溝22,22 を縦設したガイド板23,23 を突出して、これ等両縦溝内へ、上記摺動縦板の左右両側部を上下動自在に嵌合させたことを特徴とする、請求項１又は２記載のトリガー式液体噴出器。 The left and right side surfaces of the sliding vertical plate 11 are made substantially vertical and the protruding plate 21 protrudes from the rear outer surface of the injection cylinder portion into which the sliding vertical plate is fitted, and forward from the left and right side portions of the protruding plate. The guide plates 23 and 23 having vertical grooves 22 and 22 formed on the inner surface are projected, and the left and right sides of the sliding vertical plate are fitted into these vertical grooves so as to be movable up and down. The trigger type liquid ejector according to claim 1 or 2.

上記ストッパ部材10の摺動縦板11下端から後方突出させた第１係合板12を、上板31の左右方向中間部からガイド32を垂下する断面Ｔ字状で、かつ上板31の左右両後部からガイド後端部外面に沿って第２係合板33,33 を垂下し、これ等上板、ガイド、第２係合板の各後面を連続面として形成した拡大後面34の左右方向中間部から案内子35を後方突出して形成し、又トリガー７の上方一部を左右側壁41,41 で形成して、これ等両側壁内面に横設した内向きフランジ42,42 内端から凹字形状板43を垂下させて形成し、更にシリンダ６上面と射出筒３下面とを左右一対の補強板51,51 で連結してこれ等両補強板前面を摺動縦板11と平行に設け、ストッパ部材10が下限に位置する状態で、ガイド32は凹字形状板43内に位置し、上板31の左右両部は両内向きフランジ42,42 上へ、第２係合板33,33 前面は両内向きフランジ42,42 後面へ、それぞれ接し、又案内子35は両補強板51,51 間に嵌合すると共に、拡大後面34の左右両部は両補強板51,51 前面へ接するよう設けたことを特徴とする、請求項１、２、又は３記載のトリガー式液体噴出器。The first engagement plate 12 projecting rearward from the lower end of the sliding vertical plate 11 of the stopper member 10 has a T-shaped section in which the guide 32 is suspended from the intermediate portion in the left-right direction of the upper plate 31 and both the left and right sides of the upper plate 31. From the rear part, the second engagement plates 33 and 33 are suspended along the outer surface of the rear end of the guide, and from the intermediate part in the left-right direction of the enlarged rear surface 34 formed by using the rear surfaces of the upper plate, guide and second engagement plate as continuous surfaces. The guide 35 is formed to project rearward, and the upper part of the trigger 7 is formed by the left and right side walls 41, 41. 43 is formed by hanging, and the upper surface of the cylinder 6 and the lower surface of the injection cylinder 3 are connected by a pair of left and right reinforcing plates 51 and 51, and the front surfaces of these both reinforcing plates are provided in parallel with the sliding vertical plate 11, 10 is positioned at the lower limit, the guide 32 is located in the concave plate 43, and the left and right parts of the upper plate 31 are on both inward flanges 42, 42. The second engagement plates 33, 33 are in contact with the rear surfaces of the inward flanges 42, 42, and the guide 35 is fitted between the reinforcing plates 51, 51. 4. The trigger type liquid ejector according to claim 1, wherein the reinforcing plate is provided in contact with the front surface of the reinforcing plate.