JP3770443B2

JP3770443B2 - Trigger type liquid ejection container

Info

Publication number: JP3770443B2
Application number: JP19681398A
Authority: JP
Inventors: 一男鈴木
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 1998-06-26
Filing date: 1998-06-26
Publication date: 2006-04-26
Anticipated expiration: 2018-06-26
Also published as: JP2000005656A

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容器に関する。
【０００２】
【従来の技術】
例えば、実開平６−３１８５４号が示すように、容器体口頸部へ嵌合させた装着筒内から主筒を起立し、該主筒前面からシリンダを、かつ主筒上端から射出筒を、それぞれ前方突出し、又射出筒前部に枢着させて垂設したトリガーの上方後部に、上記シリンダ内へ嵌合させたプランジャ前端部を連結し、かつトリガーを前方付勢させ、トリガーの前後方向揺動で容器体内液体をシリンダ内へ吸込み、かつ該シリンダ内液体を射出筒前端から噴出可能に設けたトリガー式の液体噴出容器が知られている。
【０００３】
また、実開昭６２−１８７６６５号が示すように、上記射出筒前端部へ回動可能に液体噴出孔を有するノズルキャップを嵌合させ、これら嵌合部分に射出筒に対するノズルキャップの回動で射出筒が有する射出筒孔と液体噴出孔とを連通させ、また遮断させることが自在な液体通路開閉機構を設けることも知られている。
【０００４】
【発明が解決しようとする課題】
上記前者の公知例にあっては、不用意にトリガーを引寄せても射出筒前端から液体を噴出するから、このような不用意な液体噴出を防止するための安全装置を設けることが望まれ、また後者公知例はそのような安全装置として設けられたが、該後者公知例にあってもその安全装置を施した状態でトリガーを無理に引寄せると、僅かにトリガーおよびプランジャが後退、前進することで容器体内液体が吸込まれ、その結果吸込み弁から上記射出筒前部とノズルキャップとが形成する液体通路開閉機構までの液体流入部分内へ過剰に液体が流入することとなり、該状態からノズルキャップを回して上記開閉機構を開くと、上記過剰に充填されていた液体が液体噴出孔から噴出するおそれがあった。
本発明はトリガー操作を不能とする安全装置を設けることで、上記のような不用意な液体噴出を防止できるよう設けたものである。
【０００５】
【課題を解決するための手段】
第１の手段として、容器体口頸部へ嵌合させた装着筒１内から主筒を起立し、該主筒前面からシリンダ２を、かつ主筒上端から射出筒３を、それぞれ前方突設し、又射出筒前部に枢着させて垂設したトリガー４の上方後部に、シリンダ２内へ嵌合させたプランジャ５前端部を連結し、かつトリガー４を前方付勢させ、トリガーの前後方向揺動で容器体内液体をシリンダ２内へ吸込み、かつ該シリンダ内液体を射出筒３前端から噴出可能に設けたトリガー式液体噴出器において、
上記トリガー４を前壁６の左右から側壁７を後方突出する横断面コ字形状として、その前壁６上部に第１透孔８を穿設しておき、
上記射出筒３前端部下部から案内板１０をトリガー４上部前面沿いに垂設し、かつその案内板１０下部に上記第１透孔８へ連通させて第２透孔１１を穿設し、
上記案内板１０の前面沿いに上下動自在な前板１２の左右から側板１３を後方突出して平面コ字形状の摺動部１４を形成し、該摺動部の左右両側板で案内板１０を左右方向から上下動自在に、かつ前方へ抜出し不能に挟持させると共に、前板１２後面から上記第２透孔１１と第１透孔８とへ挿通させてロック棒１６を後方突設し、該ロック棒１６後端部から係合爪１７を突設して、これらロック棒１６と摺動部１４とでロック部材１８を形成し、該ロック部材の案内板１０に対する上下動によりロック棒１６の係合爪１７をトリガー４の第１透孔８の上後縁又は下後縁へ係合可能に形成し、
上記ロック部材１８のロック棒１６は、第１透孔８上後縁または下後縁へ係合爪が係合してトリガー４の後方への引寄せを不能にする係合位置と、第１透孔８上後縁または下後縁から上下方向へ係合爪１７が離脱してトリガー４の後方への引寄せを可能にする非係合位置とを有する。
【０００６】
第２の手段として、上記第１の手段を有すると共に、射出筒３前端部へ回動可能に液体噴出部を有するノズルキャップ１９を嵌合させ、これら嵌合部に、射出筒３に対するノズルキャップ１９の回動で射出筒３が有する射出筒孔と液体噴出部とを連通させ、又遮断させることが自在な液体通路開閉機構を設けた。
【０００７】
【発明の実施の形態】
以下、本発明に係るトリガー式液体噴出容器の実施形態を図面を参照しながら説明する。
まず、公知のトリガー式液体噴出容器について簡単に説明すると、図示しない容器体口頸部へ嵌合させた装着筒１内から主筒（図示せず）を起立し、該主筒前面からシリンダ２を、かつ主筒上端から射出筒３を、それぞれ前方突出し、また射出筒３前部に枢着させて垂設したトリガー４の上部後側に、シリンダ２内へ嵌合させたプランジャ５前端部を連結し、トリガー４の前後方向揺動で容器体内液体をシリンダ２内へ吸込み、かつ該シリンダ内液体を射出筒３前端から噴出可能に設けている。
なお、トリガー４は、シリンダ２内に設けたプランジャ５付勢用のバネによりプランジャを介して、又は主筒等のトリガー４以外の部材に一端を取り付けたバネにより前方付勢させる。
【０００８】
本発明では、トリガー４を前壁６の左右から側壁７を後方突出する横断面コ字形状に形成し、かつその前壁６上部に第１透孔８を穿設する。
また射出筒３前端部を形成するノズルキャップ嵌合筒９の基部下面から上下に細長の案内板１０を垂下して、該案内板１０後面をトリガー４上部前面へ接触させると共に、案内板１０下部へ第１透孔８に連通させて第２透孔１１を穿設する。これら第１透孔８と第２透孔１１とはほぼ同一高さに位置し、かつこれらの上下長さはほぼ等しくなっている。
【０００９】
さらに案内板１０前面沿いに上下方向へ摺動自在な前板１２の左右から側板１３を後方突出して横断面コ字形状の摺動部１４を形成すると共に、その左右の側板１３内面に上下方向に延びる係合突条１５を形成する。
そして左右両側板１３で案内板１０の左右両側面を摺動自在に挟持させると共に、係合突条１５を案内板１０後面へ摺動自在に係合させる。
【００１０】
一方、前板１２の上部後面から第２透孔１１と第１透孔８とへ挿通させてロック棒１６を後方突設し、該ロック棒後端部から第１透孔８の下後縁へ係合可能な係合爪１７を突設する。
この係合爪１７を有するロック棒１６と摺動部１４とでロック部材１８を形成する。
図示例では係合爪１７は上記のごとく第１透孔８の下後縁へ係合可能であるが、これに限らず第１透孔８の上後縁へ係合可能に形成してもよい。
【００１１】
なお、請求項２記載のように、射出筒３前端部へ回動可能に液体噴出孔を有するノズルキャップ１９を嵌合させ、これら嵌合部に、射出筒３に対するノズルキャップ１９の回動で射出筒３が有する射出筒孔と液体噴出孔とを連通させ、又遮断させることが可能な液体通路開閉機構を設けることも可能である。この液体通路開閉機構は、例えば実開昭６２−１８７６６５号に記載されているように公知である。
図中２０は図示しない主筒に連通する吸込みパイプで、その下端は容器体（図示せず）底部に達する。
【００１２】
次に本実施形態の作用について説明する。
ロック部材１８が案内板１０に対して上限位置に位置する場合には、図１に示すように係合爪１７は第１透孔８の下後縁から上方へ離間しており、従って、トリガー４を後方へ引き寄せると、ロック棒１６が相対的に第１透孔８から抜け出すため、トリガー４の後方への引寄せが可能となる。
【００１３】
トリガー４の後方への引寄せを不能にするためには、ロック部材１８を案内板１０に対して下降させて下限位置に位置させればよく、すると図２に示すように係合爪１７が第１透孔８の下後縁へ係合するため、トリガー４の後方への引寄せが不能となる。
【００１４】
なお、図示しない液体通路開閉機構により射出筒３の射出筒孔とノズルキャップ１９の液体噴出孔とを遮断させることも可能であるが、この場合でもトリガー４を僅かではあるが前後へ揺動させることも不可能ではなく、仮にこの液体通路開閉機構による遮断状態でトリガー４を揺動させると過剰充填が生じ、ここで液体噴出孔と射出筒孔とを連通させて遮断を解除すると液体が噴出するという不具合が生ずるが、上記ロック部材１８によりトリガー４を引寄せ不能にしておけばこのような事態を未然に防止することができる。
【００１５】
【発明の効果】
請求項１記載のトリガー式液体噴出容器は、トリガーを案内板へ固定可能なロック部材を設けたので、不使用時におけるトリガーの後方への引寄せを不能とすることができ、このため子供の悪戯等本来の目的以外の噴出防止が図れる。
【００１６】
請求項２記載のトリガー式液体噴出容器は、トリガーの後方への引寄せを不能にすることができるため、液体通路開閉機構による液体噴出孔と射出筒孔との遮断後におけるトリガーの僅かの揺動によって生ずる過剰充填に起因する不測の噴出といった事態を未然に防止することができる。
【図面の簡単な説明】
【図１】本発明に係るトリガー式液体噴出容器の要部を示すもので、トリガー後方引寄せ可能時の状態を示す一部切欠き側面図。
【図２】同じく、トリガー後方引寄せ不能時の状態を示す一部切欠き側面図。
【図３】同じく、容器本体を除く全体斜視図。
【図４】同じく、図３のＸ−Ｘ線に沿う断面図。
【図５】同じく、要部を示す分解斜視図。
【符号の説明】
１装着筒
２シリンダ
３射出筒
４トリガー
５プランジャ
６前壁
７側壁
８第１透孔
１０案内板
１１第２透孔
１２前板
１３側板
１４摺動部
１６ロック棒
１７係合爪
１８ロック部材
１９ノズルキャップ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a trigger type liquid ejection container.
[0002]
[Prior art]
For example, as shown in Japanese Utility Model Laid-Open No. 6-31854, the main cylinder is erected from the inside of the mounting cylinder fitted to the container body neck and neck, the cylinder from the front surface of the main cylinder, and the injection cylinder from the upper end of the main cylinder, The front and rear direction of the trigger is such that the front end of the plunger fitted into the cylinder is connected to the upper rear part of the trigger that protrudes forward and is pivotally attached to the front part of the injection cylinder, and the trigger is biased forward. 2. Description of the Related Art A trigger-type liquid ejection container is known in which a liquid in a container is sucked into a cylinder by swinging and the liquid in the cylinder is ejected from the front end of an injection cylinder.
[0003]
Further, as shown in Japanese Utility Model Publication No. 62-187665, a nozzle cap having a liquid ejection hole is fitted to the front end portion of the injection cylinder so as to be rotatable, and the nozzle cap is rotated with respect to the injection cylinder in these fitting portions. It is also known to provide a liquid passage opening / closing mechanism that allows the injection cylinder hole and the liquid ejection hole of the injection cylinder to communicate with each other and to be blocked.
[0004]
[Problems to be solved by the invention]
In the former known example, since the liquid is ejected from the front end of the injection cylinder even if the trigger is inadvertently pulled, it is desirable to provide a safety device for preventing such inadvertent liquid ejection. The latter known example is provided as such a safety device, but even in the latter known example, if the trigger is forcibly pulled with the safety device applied, the trigger and the plunger are slightly moved backward and forward. As a result, the liquid in the container is sucked, and as a result, the liquid excessively flows into the liquid inflow portion from the suction valve to the liquid passage opening / closing mechanism formed by the front portion of the injection cylinder and the nozzle cap. When the nozzle cap is turned to open the opening / closing mechanism, the excessively filled liquid may be ejected from the liquid ejection hole.
The present invention is provided to prevent the inadvertent liquid ejection as described above by providing a safety device that disables the trigger operation.
[0005]
[Means for Solving the Problems]
As a first means, the main cylinder is erected from the inside of the mounting cylinder 1 fitted to the container body neck and neck, the cylinder 2 is projected from the front of the main cylinder, and the injection cylinder 3 is projected forward from the upper end of the main cylinder. In addition, the front end of the plunger 5 fitted into the cylinder 2 is connected to the upper rear part of the trigger 4 that is pivotally attached to the front part of the injection cylinder, and the trigger 4 is urged forward so that the front and rear of the trigger In the trigger type liquid ejector provided so that the liquid in the container is sucked into the cylinder 2 by swinging in the direction and the liquid in the cylinder is ejected from the front end of the injection cylinder 3;
The trigger 4 has a U-shaped cross section that protrudes rearward from the left and right sides of the front wall 6, and a first through hole 8 is formed in the upper portion of the front wall 6.
A guide plate 10 is suspended from the lower front end portion of the injection cylinder 3 along the front surface of the upper portion of the trigger 4, and a second through hole 11 is formed in the lower portion of the guide plate 10 so as to communicate with the first through hole 8.
The side plate 13 protrudes rearward from the left and right of the front plate 12 that can move up and down along the front surface of the guide plate 10 to form a U-shaped sliding portion 14, and the guide plate 10 is formed by the left and right side plates of the sliding portion. The lock rod 16 is protruded rearward from the rear surface of the front plate 12 through the second through hole 11 and the first through hole 8 so as to be movable up and down from the left and right direction and not to be drawn forward. An engagement claw 17 is projected from the rear end portion of the lock rod 16, and a lock member 18 is formed by the lock rod 16 and the sliding portion 14, and the lock rod 16 is moved up and down with respect to the guide plate 10. The engaging claw 17 is formed to be engageable with the upper rear edge or the lower rear edge of the first through hole 8 of the trigger 4,
The lock rod 16 of the lock member 18 has an engagement position where the engagement claw engages with the upper rear edge or the lower rear edge of the first through-hole 8 and the trigger 4 cannot be pulled backward, and the first The engaging claw 17 is disengaged in the vertical direction from the upper rear edge or the lower rear edge of the through hole 8 and has a non-engagement position that allows the trigger 4 to be pulled backward.
[0006]
As a second means, a nozzle cap 19 having the above-mentioned first means and having a liquid ejecting portion is rotatably fitted to the front end portion of the injection cylinder 3, and the nozzle cap for the injection cylinder 3 is fitted to these fitting portions. A liquid passage opening / closing mechanism is provided that allows the injection cylinder hole of the injection cylinder 3 and the liquid ejection part to communicate with each other and to be blocked by rotation of 19.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a trigger type liquid ejection container according to the present invention will be described with reference to the drawings.
First, a known trigger type liquid ejection container will be briefly described. A main cylinder (not shown) is erected from the inside of a mounting cylinder 1 fitted to a container body neck and neck portion (not shown), and a cylinder 2 is formed from the front surface of the main cylinder. And the front end of the plunger 5 fitted into the cylinder 2 on the upper rear side of the trigger 4 that protrudes forward from the upper end of the main cylinder and is pivotally attached to the front of the injection cylinder 3. Are connected so that the liquid in the container can be sucked into the cylinder 2 by swinging the trigger 4 in the front-rear direction, and the liquid in the cylinder can be ejected from the front end of the injection cylinder 3.
The trigger 4 is biased forward by a plunger 5 biasing spring provided in the cylinder 2 via a plunger, or by a spring having one end attached to a member other than the trigger 4 such as a main cylinder.
[0008]
In the present invention, the trigger 4 is formed in a U-shaped cross section that protrudes backward from the left and right sides of the front wall 6, and the first through hole 8 is formed in the upper portion of the front wall 6.
Further, an elongated guide plate 10 is suspended vertically from the lower surface of the base portion of the nozzle cap fitting tube 9 forming the front end portion of the injection tube 3, the rear surface of the guide plate 10 is brought into contact with the front surface of the trigger 4, and the lower portion of the guide plate 10 A second through hole 11 is formed in communication with the first through hole 8. The first through holes 8 and the second through holes 11 are located at substantially the same height, and their vertical lengths are substantially equal.
[0009]
Further, the side plate 13 protrudes rearward from the left and right of the front plate 12 slidable in the vertical direction along the front surface of the guide plate 10 to form a sliding portion 14 having a U-shaped cross section, and on the inner surfaces of the left and right side plates 13 in the vertical direction. The engaging ridge 15 extending in the direction is formed.
Then, the left and right side surfaces of the guide plate 10 are slidably sandwiched between the left and right side plates 13 and the engaging protrusion 15 is slidably engaged with the rear surface of the guide plate 10.
[0010]
On the other hand, the lock rod 16 is protruded rearward from the upper rear surface of the front plate 12 through the second through hole 11 and the first through hole 8, and the lower rear edge of the first through hole 8 from the rear end portion of the lock rod. An engaging claw 17 that can be engaged with is projected.
A lock member 18 is formed by the lock rod 16 having the engaging claw 17 and the sliding portion 14.
In the illustrated example, the engaging claw 17 can be engaged with the lower rear edge of the first through-hole 8 as described above. Good.
[0011]
In addition, as described in claim 2, the nozzle cap 19 having a liquid ejection hole is fitted to the front end portion of the injection cylinder 3 so as to be rotatable, and the nozzle cap 19 is rotated with respect to the injection cylinder 3 in these fitting portions. It is also possible to provide a liquid passage opening / closing mechanism that allows the injection cylinder hole and the liquid ejection hole of the injection cylinder 3 to communicate with each other and to be blocked. This liquid passage opening / closing mechanism is known, for example, as described in Japanese Utility Model Laid-Open No. 62-187665.
In the figure, reference numeral 20 denotes a suction pipe communicating with a main cylinder (not shown), and the lower end thereof reaches the bottom of a container body (not shown).
[0012]
Next, the operation of this embodiment will be described.
When the lock member 18 is located at the upper limit position with respect to the guide plate 10, the engaging claw 17 is spaced upward from the lower rear edge of the first through hole 8 as shown in FIG. When 4 is pulled rearward, the lock rod 16 is relatively pulled out from the first through hole 8, so that the trigger 4 can be pulled rearward.
[0013]
In order to make the trigger 4 unable to be pulled backward, the lock member 18 may be lowered with respect to the guide plate 10 and positioned at the lower limit position. Then, as shown in FIG. Since the first through hole 8 is engaged with the lower rear edge, the trigger 4 cannot be pulled backward.
[0014]
Although it is possible to block the injection cylinder hole of the injection cylinder 3 and the liquid ejection hole of the nozzle cap 19 by a liquid passage opening / closing mechanism (not shown), the trigger 4 is slightly swung back and forth in this case as well. However, if the trigger 4 is swung in the shut-off state by the liquid passage opening / closing mechanism, overfilling occurs. When the shut-off is released by connecting the liquid ejection hole and the injection cylinder hole, the liquid is ejected. However, if the trigger 4 cannot be pulled by the lock member 18, such a situation can be prevented.
[0015]
【The invention's effect】
Since the trigger type liquid ejection container according to claim 1 is provided with a lock member that can fix the trigger to the guide plate, it is impossible to draw the trigger backward when not in use. Prevents spewing other than the original purpose such as mischief.
[0016]
Since the trigger type liquid ejection container according to claim 2 can disable the trigger from being pulled backward, the trigger liquid ejection container slightly swings after the liquid ejection hole and the injection cylinder hole are blocked by the liquid passage opening / closing mechanism. It is possible to prevent a situation such as an unexpected ejection resulting from excessive filling caused by movement.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing a main part of a trigger type liquid ejection container according to the present invention and showing a state when a trigger rearward drawing is possible.
FIG. 2 is a partially cutaway side view showing a state where the trigger cannot be pulled backward in the same manner.
FIG. 3 is an overall perspective view excluding the container body.
4 is a cross-sectional view taken along line XX in FIG.
FIG. 5 is an exploded perspective view showing the main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mounting cylinder 2 Cylinder 3 Injection cylinder 4 Trigger 5 Plunger 6 Front wall 7 Side wall 8 1st through-hole 10 Guide plate 11 2nd through-hole 12 Front plate 13 Side plate 14 Sliding part 16 Lock rod 17 Engagement claw 18 Lock member 19 Nozzle cap

Claims

The main cylinder is erected from the inside of the mounting cylinder 1 fitted to the container body neck and neck, the cylinder 2 is projected from the front of the main cylinder, and the injection cylinder 3 is projected forward from the upper end of the main cylinder. The front end of the plunger 5 fitted into the cylinder 2 is connected to the upper rear part of the trigger 4 which is pivotally attached to the part, and the trigger 4 is biased forward, and the trigger body is swung in the front-rear direction. In the trigger type liquid ejector that sucks liquid into the cylinder 2 and is provided so that the liquid in the cylinder can be ejected from the front end of the injection cylinder 3;
The trigger 4 has a U-shaped cross section that protrudes rearward from the left and right sides of the front wall 6, and a first through hole 8 is formed in the upper portion of the front wall 6.
A guide plate 10 is suspended from the lower front end portion of the injection cylinder 3 along the front surface of the upper portion of the trigger 4, and a second through hole 11 is formed in the lower portion of the guide plate 10 so as to communicate with the first through hole 8.
The side plate 13 protrudes rearward from the left and right of the front plate 12 that can move up and down along the front surface of the guide plate 10 to form a U-shaped sliding portion 14, and the guide plate 10 is formed by the left and right side plates of the sliding portion. The lock rod 16 is protruded rearward from the rear surface of the front plate 12 through the second through hole 11 and the first through hole 8 so as to be movable up and down from the left and right direction and not to be drawn forward. An engagement claw 17 is projected from the rear end portion of the lock rod 16, and a lock member 18 is formed by the lock rod 16 and the sliding portion 14, and the lock rod 16 is moved up and down with respect to the guide plate 10. The engaging claw 17 is formed to be engageable with the upper rear edge or the lower rear edge of the first through hole 8 of the trigger 4,
The lock rod 16 of the lock member 18 has an engagement position where the engagement claw engages with the upper rear edge or the lower rear edge of the first through-hole 8 and the trigger 4 cannot be pulled backward, and the first The engagement claw 17 is disengaged in the vertical direction from the upper rear edge or the lower rear edge of the through-hole 8 and has a non-engagement position that enables the trigger 4 to be pulled backward.
A trigger type liquid ejection container characterized by that.

A nozzle cap 19 having a liquid ejecting portion is fitted to the front end portion of the injection cylinder 3 so as to be rotatable, and an injection cylinder hole and a liquid which the injection cylinder 3 has by the rotation of the nozzle cap 19 with respect to the injection cylinder 3 are fitted in these fitting portions. A liquid passage opening / closing mechanism is provided that allows communication with the ejection part and can be shut off.
The trigger type liquid ejection container according to claim 1 characterized by things.