JP2004275844A - Trigger liquid injector - Google Patents

Trigger liquid injector Download PDF

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Publication number
JP2004275844A
JP2004275844A JP2003068964A JP2003068964A JP2004275844A JP 2004275844 A JP2004275844 A JP 2004275844A JP 2003068964 A JP2003068964 A JP 2003068964A JP 2003068964 A JP2003068964 A JP 2003068964A JP 2004275844 A JP2004275844 A JP 2004275844A
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JP
Japan
Prior art keywords
nozzle
trigger
flow path
liquid
spin element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
JP2003068964A
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Japanese (ja)
Inventor
Yoshinori Inagawa
義則 稲川
Tetsuya Kobayashi
徹也 小林
Takeshi Omi
毅 大海
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Kao Corp
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Kao Corp
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Filing date
Publication date
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Priority to JP2003068964A priority Critical patent/JP2004275844A/en
Publication of JP2004275844A publication Critical patent/JP2004275844A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger liquid injector resistant to environmental stress cracking. <P>SOLUTION: The trigger liquid injector 10 is composed of a nozzle 20 attached to the top side of a trigger body 14 and a spin element 21 provided between the liquid passage a of the body 14 and the injection port d of the nozzle 20 and is characterized in that the spin element 21 is inserted into a hole 19A or 20D made in at least either of the trigger body 14 and the nozzle 20 to be axially held by the trigger body 14 and the nozzle 20. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明はトリガー式液体噴出器に関する。
【0002】
【従来の技術】
特許文献1に記載の如く、トリガー式液体噴出器として、トリガーボディの先端側にノズルを取付け、トリガーボディの液流路とノズルの噴出孔との間にスピンエレメントを設け、トリガーボディの液流路を圧送されてきた液体にスピンエレメント〜ノズルの液流路によって旋回動を与え、旋回された液体をノズルの噴出孔から噴出するものがある。
【0003】
特許文献1のトリガー式液体噴出器では、ノズルをスピンエレメントに対して相対回転可能に嵌合し、ノズルを回転して開閉操作することで、スピンエレメントの液流路に対するノズルの液流路の連通状態を切換え、液の噴出状態を切換え可能にしている。このとき、スピンエレメントがノズルの回転に連れ回ることのないように、スピンエレメントはトリガーボディにしまり嵌めされて固定される。
【0004】
【特許文献1】
特開平8−332422([0011]、図1、図2)
【0005】
【発明が解決しようとする課題】
特許文献1のトリガー式液体噴出器では、トリガーボディとスピンエレメントのしまり嵌めの嵌合部が、漂白剤等の界面活性剤を含む内容液に常に晒されながら、嵌合による応力を定常的に生じているから、環境応力破壊による破損を生じ易い。内容液が界面活性剤と次亜塩素酸ナトリウムを含有する場合には、界面活性剤と次亜塩素酸ナトリウムの相乗効果的影響により、更に破損を生じ易い。
【0006】
本発明の課題は、環境応力破壊を生じにくいトリガー式液体噴出器を提供することにある。
【0007】
【課題を解決するための手段】
請求項1の発明は、トリガーボディの先端側にノズルを取付け、トリガーボディの液流路とノズルの噴出孔との間にスピンエレメントを設けてなるトリガー式液体噴出器であって、スピンエレメントを、トリガーボディとノズルの少なくとも一方に設けた孔に挿入し、トリガーボディとノズルによって軸方向に挟み込み保持したものである。
【0008】
【発明の実施の形態】
トリガー式液体噴出器10は、図1に示す如く、容器11の開口部に接続される通液体12を、該容器11に螺着されるキャップ13により該容器11に固定する。トリガー式液体噴出器10は、通液体12にトリガーボディ14を嵌合して一体化し(通液体12とトリガーボディ14は一体成形されても可)、トリガーボディ14の主筒14Aをキャップ13の側から起立し、主筒14Aの中間部から前方にシリンダ筒14Bを突設し、主筒14Aの上端部から前方に射出筒14Cを突設している。
【0009】
トリガー式液体噴出器10は、トリガーレバー15の上端部をトリガーボディ14の射出筒14Cにおける前方側の両外側部に回動自在に枢着し、シリンダ筒14Bに嵌合させたプランジャ17の前端部にトリガーレバー15の中間部の後面を係合させ、シリンダ筒14Bに内蔵のスプリング18によりプランジャ17を介してトリガーレバー15を前方に弾発させる。
【0010】
トリガー式液体噴出器10は、トリガーボディ14の射出筒14Cの先端側に連結筒部19を設け、この連結筒部19の外径部にノズル20を回動自在に嵌合する。トリガーボディ14の射出筒14Cに設けられる液流路aと、ノズル20の液流路c、噴出孔dとの間には、液流路aに連通する液流路bを備えるスピンエレメント21が後述する如くに設けられる。ノズル20は回動操作レバー22を備える。回動操作レバー22によりノズル20を連結筒部19に介し回転して開閉操作することで、スピンエレメント21の液流路bとノズル20の液流路cの連通状態を後述する如くに切換え、ノズル20からの液の吐出状態を切換え可能にする。
【0011】
トリガー式液体噴出器10は、容器11の内部に延びるディップチューブ31を通液体12の下端部に挿着し、通液体12の内部に入側逆止弁32、出側逆止弁33を設けている。
【0012】
これにより、トリガー式液体噴出器10にあっては、トリガーレバー15の引き操作に基づくプランジャ17の加圧動作により、シリンダ筒14B内の液体を出側逆止弁33経由で、射出筒14Cの液流路a、スピンエレメント21の液流路b、ノズル20の液流路cを介して噴出孔dから噴出する。また、トリガーレバー15の引き操作解除に基づくプランジャ17の戻り動作で、容器11内の液体を入側逆止弁32経由でシリンダ筒14Bに吸込む。
【0013】
しかるに、トリガー式液体噴出器10は、トリガーボディ14に対するノズル20、スピンエレメント21の取付け構造を以下の如くに構成する。
【0014】
トリガーボディ14の連結筒部19は、図2に示す如く、嵌合孔19Aを内周に備え、係止部19Bを外周に備える。ノズル20は連結筒部19の嵌合孔19Aの開口端側に液密に回転可能に嵌合する嵌合筒20Aを備え、嵌合筒20Aの外周側で二重筒状をなす外筒20Bに連結筒部19の係止部19Bとの係止部20Cを備える。スピンエレメント21は連結筒部19の嵌合孔19Aの奥側に挿入される大径部21Aと、ノズル20の嵌合筒20Aの中心部に設けた嵌合孔20Dに液密に相対回転可能に嵌合する小径部21Bを有する。
【0015】
スピンエレメント21は、連結筒部19の嵌合孔19Aとノズル20の嵌合孔20Dに上述の如くに挿入され、軸方向では、大径部21Aの端面を嵌合孔19Aの奥側段差面(嵌合孔19Aと射出筒14Cの液流路aとの段差面)に当接し、小径部21Bの端面を嵌合孔20Dの奥側端面に当接する状態で、トリガーボディ14とノズル20によって挟み込み保持される。スピンエレメント21における大径部21Aと小径部21Bの段差面は、ノズル20の嵌合筒20Aの端面に軽く当接している。即ち、液流路を有するスピンエレメント21は、連結筒部19の嵌合孔19Aとノズル20の嵌合孔20Dに、嵌め合い応力が発生しない程度で、かつ径方向、軸方向ともガタの生じない寸法関係にて組み込まれる。
【0016】
スピンエレメント21は、図2、図3に示す如く、大径部21Aの外周の周方向の1以上の位置(本実施形態では2位置)に設けた凹部21Cを、連結筒部19の嵌合孔19Aの内周に設けた凸部19Cに軸方向から係入するすることにより、トリガーボディ14に対して回り止めされる。凸部19Cと凹部21Cは、直線状リブ、半球状突部等にて構成することができる。ノズル20が、回動操作レバー22による前述の開閉操作に伴ない、スピンエレメント21の小径部21Bに液密に回転するとき、スピンエレメント21は上述の回り止めにより、ノズル20に連れ回らない。
【0017】
ノズル20とスピンエレメント21は、射出筒14Cの液流路aとノズル20の噴出孔dとの間に以下の如くの液流路b、液流路cを備える。(図2〜図7)。
【0018】
スピンエレメント21は、射出筒14Cの液流路aに常時連なる溝状の液流路b1(図3、図7)を大径部21Aの外周の周方向の1以上の位置(本実施形態では2位置)にて軸方向に延在し、液流路b1が常時連なる陥凹状の液流路b2(図7)を大径部21Aの端面の小径部21Bまわりに環状形成している。また、スピンエレメント21は、液流路bに直接連通しない溝状の液流路b3(図5、図7)を小径部21Bの先端側外周の周方向の1以上の位置(本実施形態では2位置)にて軸方向に軸端面まで延在している。
【0019】
ノズル20は、スピンエレメント21の液流路b2に常時連なる溝状の液流路c1(図4)を嵌合孔20Dの内周の周方向の1以上の位置(本実施形態では2位置)にて軸方向に孔中途まで延在している。ノズル20を回動操作レバー22により回転させて開操作したとき、ノズル20の嵌合孔20Dに設けた上述の液流路c1は、スピンエレメント21の前述の液流路b3に合致して連通し、スピンエレメント21の液流路b2と液流路b3をつなぐ。ノズル20は、嵌合孔20Dの奥側端面から外方に向けて噴出孔dを穿設するとともに、スピンエレメント21の液流路b3が連通する嵌合孔20Dの奥側端面の外周側から噴出孔dに至る旋回流路c2(図6)を周方向の1以上の位置(本実施形態では2位置)に備える。
【0020】
尚、スピンエレメント21の液流路b1は連結筒部19の嵌合孔19Aに設けても良い。スピンエレメント21の液流路b2はノズル20の嵌合筒20Aの端面に設けても良い。スピンエレメント21の液流路b3をノズル20の嵌合孔20D設け、かつノズル20の液流路c1をスピンエレメント21の小径部21Bに設けても良い。ノズル20の旋回流路c2はスピンエレメント21の小径部21Bの端面に設けても良い。
【0021】
従って、トリガー式液体噴出器10にあっては、以下の如くに吐出動作する。
(A)液停止状態(図8)
回動操作レバー22よりノズル20を閉操作位置に設定する。ノズル20の液流路c1がスピンエレメント21の液流路b3に不一致になり、スピンエレメント21の液流路b2と液流路b3がつながらず、射出筒14Cの液流路aの液体がスピンエレメント21の液流路c1止まりになり、ノズル20からの液の吐出は停止状態になる。
【0022】
(B)液噴出状態(図9)
回動操作レバー22よりノズル20を開操作位置に回転する。ノズル20の液流路c1がスピンエレメント21の液流路b3に合致し、スピンエレメント21の液流路b2と液流路b3がつながる。これにより、射出筒14Cの液流路aの液体がスピンエレメント21の液流路b1、b2、b3、ノズル20の液流路c1、旋回流路c2に圧送され、旋回流路c2で旋回動を付与された液体が噴出孔dから噴出せしめられる。このとき、ノズル20に設けてある空気取入れ口23から流入する空気が液体に混合して液体を泡化し、液体を泡状にして吐出可能にする。
【0023】
トリガー式液体噴出器10の内容液としては、例えば界面活性剤と次亜塩素酸ナトリウムを含有する液体を採用できる。
【0024】
本実施形態によれば以下の作用効果を奏する。
(請求項1に対応する作用効果)
▲1▼スピンエレメント21をトリガーボディ14とノズル20によって軸方向に挟み込み保持したから、スピンエレメント21をトリガーボディ14の間では流路b1にのみ液が流れる程度の嵌め合い代をもって取り付けられていれば良い。従って、トリガーボディ14とスピンエレメント21の取付け部が内容液に晒されるにしても、その取付け部に生じる応力は微小であり環境応力破壊を誘引しにくい。
【0025】
(請求項2に対応する作用効果)
▲2▼スピンエレメント21をトリガーボディ14に対する取付け部で、軸方向、径方向にガタの生じない寸法関係で挿入することにより、その取付け部に環境応力破壊を誘引するような応力の発生を確実に排除できる。
【0026】
(請求項3に対応する作用効果)
▲3▼スピンエレメント21はトリガーボディ14に対する取付け部で、流路b1にのみ液が流れる程度の嵌め合い代をもって取り付けられていても、凸部19Cと凹部21Cからなる回り止め部の存在により回転阻止される。このため、ノズル20をスピンエレメント21に対して相対回転し、スピンエレメント21の液流路bに対するノズル20の液流路cの連通状態を切換え、液の吐出状態を切換えようとするとき、スピンエレメント21の連れ回りを防止できる。
【0027】
(請求項4に対応する作用効果)
▲4▼内容液が次亜塩素酸ナトリウムを含有する場合にも、トリガーボディ14とスピンエレメント21の取付け部での環境応力破壊を防止できる。
【0028】
本発明において、スピンエレメントとトリガーボディの回り止め手段は、凹凸係合によるものに限らず、ねじ係合等によるものでも良い。
【0029】
【発明の効果】
本発明によれば、環境応力破壊を生じにくいトリガー式液体噴出器を提供することができる。
【図面の簡単な説明】
【図1】図1はトリガー式液体噴出器を示す断面図である。
【図2】図2はトリガーボディとスピンエレメントとノズルの取付け部を示す断面図である。
【図3】図3は図2のIII−III線に沿う断面図である。
【図4】図4は図2のIV−IV線に沿う断面図である。
【図5】図5は図2のV−V線に沿う断面図である。
【図6】図6は図2のVI−VI線に沿う断面図である。
【図7】図7はスピンエレメントを示す斜視図である。
【図8】図8は液停止状態を示し、(A)は模式図、(B)は(A)のB−B線に沿う断面図、(C)は(A)のC−C線に沿う断面図である。
【図9】図9は液噴出状態を示し、(A)は模式図、(B)は(A)のB−B線に沿う断面図、(C)は(A)のC−C線に沿う断面図である。
【符号の説明】
10 トリガー式液体噴出器
14 トリガーボディ
19 連結筒部
19A 嵌合孔
20 ノズル
20D 嵌合孔
21 スピンエレメント
a、b、c 液流路
d 噴出孔
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a trigger type liquid ejector.
[0002]
[Prior art]
As described in Patent Document 1, as a trigger type liquid ejector, a nozzle is attached to the tip side of a trigger body, a spin element is provided between a liquid flow path of the trigger body and an ejection hole of the nozzle, and a liquid flow of the trigger body is provided. There is a type in which swirling motion is applied to the liquid that has been pressure-fed through the path by the liquid flow path from the spin element to the nozzle, and the swirled liquid is ejected from the ejection hole of the nozzle.
[0003]
In the trigger type liquid ejector disclosed in Patent Document 1, the nozzle is rotatably fitted to the spin element, and the nozzle is rotated to open and close, so that the liquid flow path of the nozzle with respect to the liquid flow path of the spin element is adjusted. The communication state is switched so that the state of liquid ejection can be switched. At this time, the spin element is tightly fitted and fixed to the trigger body so that the spin element does not rotate with the rotation of the nozzle.
[0004]
[Patent Document 1]
JP-A-8-332422 ([0011], FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
In the trigger-type liquid ejector of Patent Document 1, the fitting portion of the tight fit between the trigger body and the spin element is constantly exposed to a content liquid containing a surfactant such as a bleaching agent, and the stress due to the fitting is constantly increased. Therefore, damage due to environmental stress fracture is likely to occur. When the content liquid contains a surfactant and sodium hypochlorite, damage is more likely to occur due to a synergistic effect of the surfactant and sodium hypochlorite.
[0006]
An object of the present invention is to provide a trigger type liquid ejector that is less likely to cause environmental stress destruction.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is a trigger type liquid ejector in which a nozzle is attached to a distal end side of a trigger body, and a spin element is provided between a liquid flow path of the trigger body and an ejection hole of the nozzle. Are inserted into holes provided in at least one of the trigger body and the nozzle, and are sandwiched and held in the axial direction by the trigger body and the nozzle.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 1, the trigger type liquid ejector 10 fixes the liquid passing through 12 connected to the opening of the container 11 to the container 11 with a cap 13 screwed to the container 11. In the trigger type liquid ejector 10, the trigger body 14 is fitted to the liquid passage 12 to be integrated (the liquid passage 12 and the trigger body 14 may be integrally formed), and the main cylinder 14A of the trigger body 14 is Standing from the side, a cylinder cylinder 14B protrudes forward from an intermediate portion of the main cylinder 14A, and an injection cylinder 14C protrudes forward from the upper end of the main cylinder 14A.
[0009]
The trigger type liquid ejector 10 is configured such that the upper end of the trigger lever 15 is rotatably pivotally connected to both front outer sides of the injection cylinder 14C of the trigger body 14, and the front end of the plunger 17 fitted to the cylinder cylinder 14B. The rear surface of the intermediate portion of the trigger lever 15 is engaged with the portion, and the trigger lever 15 is resiliently moved forward through the plunger 17 by the spring 18 built in the cylinder cylinder 14B.
[0010]
In the trigger type liquid ejector 10, a connecting cylinder 19 is provided at the distal end side of the injection cylinder 14C of the trigger body 14, and a nozzle 20 is rotatably fitted to the outer diameter of the connecting cylinder 19. A spin element 21 having a liquid flow path b communicating with the liquid flow path a is provided between the liquid flow path a provided in the injection cylinder 14C of the trigger body 14 and the liquid flow path c and the ejection hole d of the nozzle 20. It is provided as described below. The nozzle 20 includes a rotation operation lever 22. By rotating the nozzle 20 via the connecting tubular portion 19 by the rotation operation lever 22 to open and close, the communication state between the liquid flow path b of the spin element 21 and the liquid flow path c of the nozzle 20 is switched as described later. The discharge state of the liquid from the nozzle 20 can be switched.
[0011]
In the trigger type liquid ejector 10, a dip tube 31 extending into the container 11 is inserted into a lower end portion of the liquid 12, and an inlet check valve 32 and an outlet check valve 33 are provided inside the liquid 12. ing.
[0012]
As a result, in the trigger type liquid ejector 10, the liquid in the cylinder cylinder 14 </ b> B is discharged from the injection cylinder 14 </ b> C via the output side check valve 33 by the pressurizing operation of the plunger 17 based on the pulling operation of the trigger lever 15. The liquid is ejected from the ejection hole d via the liquid flow path a, the liquid flow path b of the spin element 21, and the liquid flow path c of the nozzle 20. In addition, by the return operation of the plunger 17 based on the release of the pull operation of the trigger lever 15, the liquid in the container 11 is sucked into the cylinder tube 14B via the inlet-side check valve 32.
[0013]
However, the trigger type liquid ejector 10 has a structure for attaching the nozzle 20 and the spin element 21 to the trigger body 14 as follows.
[0014]
As shown in FIG. 2, the connecting tubular portion 19 of the trigger body 14 has a fitting hole 19A on the inner periphery and a locking portion 19B on the outer periphery. The nozzle 20 is provided with a fitting cylinder 20A that is rotatably fitted in a liquid-tight manner at the opening end side of the fitting hole 19A of the connecting cylinder portion 19, and forms a double cylindrical outer cylinder 20B on the outer peripheral side of the fitting cylinder 20A. Is provided with a locking portion 20C with the locking portion 19B of the connecting cylinder portion 19. The spin element 21 can relatively rotate in a liquid-tight manner between a large-diameter portion 21A inserted into the fitting hole 19A of the connecting cylinder portion 19 and a fitting hole 20D provided at the center of the fitting cylinder 20A of the nozzle 20. And has a small diameter portion 21B that fits into the small diameter portion 21B.
[0015]
The spin element 21 is inserted into the fitting hole 19A of the connecting cylindrical portion 19 and the fitting hole 20D of the nozzle 20 as described above, and in the axial direction, the end face of the large-diameter portion 21A is formed into a rear step surface of the fitting hole 19A. (The step surface between the fitting hole 19A and the liquid flow path a of the injection cylinder 14C) and the trigger body 14 and the nozzle 20 in a state in which the end surface of the small diameter portion 21B abuts the rear end surface of the fitting hole 20D. It is sandwiched and held. The step surface of the large diameter portion 21A and the small diameter portion 21B of the spin element 21 is lightly in contact with the end surface of the fitting cylinder 20A of the nozzle 20. That is, the spin element 21 having the liquid flow path has such a degree that the fitting stress is not generated in the fitting hole 19A of the connecting cylinder portion 19 and the fitting hole 20D of the nozzle 20, and play is generated in both the radial direction and the axial direction. It is incorporated with no dimensional relationship.
[0016]
As shown in FIG. 2 and FIG. 3, the spin element 21 has a concave portion 21 </ b> C provided at one or more positions (two positions in the present embodiment) in the circumferential direction of the outer periphery of the large-diameter portion 21 </ b> A. By engaging the projection 19C provided on the inner periphery of the hole 19A from the axial direction, the rotation of the trigger body 14 is prevented. The convex portion 19C and the concave portion 21C can be constituted by linear ribs, hemispherical protrusions, and the like. When the nozzle 20 rotates in a liquid-tight manner to the small diameter portion 21B of the spin element 21 with the opening / closing operation by the rotation operation lever 22, the spin element 21 does not follow the nozzle 20 due to the above-described detent.
[0017]
The nozzle 20 and the spin element 21 have a liquid flow path b and a liquid flow path c between the liquid flow path a of the injection cylinder 14C and the ejection hole d of the nozzle 20 as described below. (FIGS. 2 to 7).
[0018]
The spin element 21 has a groove-shaped liquid flow path b1 (FIGS. 3 and 7) that is always connected to the liquid flow path a of the injection cylinder 14C at one or more positions in the circumferential direction of the outer periphery of the large-diameter portion 21A (in the present embodiment). At two positions), a concave liquid flow path b2 (FIG. 7) extending in the axial direction and continuously connecting the liquid flow path b1 is formed annularly around the small diameter portion 21B on the end face of the large diameter portion 21A. In addition, the spin element 21 is configured such that the groove-shaped liquid flow path b3 (FIGS. 5 and 7) that does not directly communicate with the liquid flow path b is positioned at one or more positions in the circumferential direction of the outer periphery on the distal end side of the small-diameter portion 21B (in the present embodiment). (At two positions) in the axial direction to the shaft end face.
[0019]
The nozzle 20 connects the groove-shaped liquid flow path c1 (FIG. 4) which is always connected to the liquid flow path b2 of the spin element 21 at one or more positions (two positions in the present embodiment) in the circumferential direction of the inner periphery of the fitting hole 20D. Extends in the axial direction halfway through the hole. When the nozzle 20 is rotated by the rotation operation lever 22 and opened, the above-mentioned liquid flow path c1 provided in the fitting hole 20D of the nozzle 20 matches and communicates with the above-mentioned liquid flow path b3 of the spin element 21. Then, the liquid flow path b2 and the liquid flow path b3 of the spin element 21 are connected. The nozzle 20 has an ejection hole d that extends outward from the rear end surface of the fitting hole 20D, and is formed from the outer peripheral side of the rear end surface of the fitting hole 20D to which the liquid flow path b3 of the spin element 21 communicates. The swirling flow path c2 (FIG. 6) reaching the ejection hole d is provided at one or more positions (two positions in the present embodiment) in the circumferential direction.
[0020]
In addition, the liquid flow path b1 of the spin element 21 may be provided in the fitting hole 19A of the connecting cylinder portion 19. The liquid flow path b2 of the spin element 21 may be provided on the end surface of the fitting cylinder 20A of the nozzle 20. The liquid flow path b3 of the spin element 21 may be provided in the fitting hole 20D of the nozzle 20, and the liquid flow path c1 of the nozzle 20 may be provided in the small diameter portion 21B of the spin element 21. The swirl channel c2 of the nozzle 20 may be provided on the end face of the small diameter portion 21B of the spin element 21.
[0021]
Therefore, in the trigger type liquid ejector 10, the discharging operation is performed as follows.
(A) Liquid stopped state (FIG. 8)
The nozzle 20 is set to the closing operation position by the rotation operation lever 22. The liquid flow path c1 of the nozzle 20 does not coincide with the liquid flow path b3 of the spin element 21, the liquid flow path b2 of the spin element 21 does not connect to the liquid flow path b3, and the liquid in the liquid flow path a of the injection cylinder 14C spins. The liquid flow path c1 of the element 21 stops, and the discharge of the liquid from the nozzle 20 is stopped.
[0022]
(B) Liquid ejection state (FIG. 9)
The nozzle 20 is rotated to the open operation position by the rotation operation lever 22. The liquid flow path c1 of the nozzle 20 matches the liquid flow path b3 of the spin element 21, and the liquid flow path b2 and the liquid flow path b3 of the spin element 21 are connected. Accordingly, the liquid in the liquid flow path a of the injection cylinder 14C is pressure-fed to the liquid flow paths b1, b2, b3 of the spin element 21, the liquid flow path c1, and the swirl flow path c2 of the nozzle 20, and the swirl moves in the swirl flow path c2. Is ejected from the ejection hole d. At this time, the air flowing from the air intake port 23 provided in the nozzle 20 is mixed with the liquid to foam the liquid, and the liquid is foamed so that the liquid can be discharged.
[0023]
As the content liquid of the trigger type liquid ejector 10, for example, a liquid containing a surfactant and sodium hypochlorite can be adopted.
[0024]
According to the present embodiment, the following operational effects can be obtained.
(Operation and Effect Corresponding to Claim 1)
{Circle around (1)} Since the spin element 21 is sandwiched and held in the axial direction by the trigger body 14 and the nozzle 20, the spin element 21 may be mounted between the trigger bodies 14 with a fitting allowance such that the liquid flows only through the flow path b1. Good. Therefore, even if the mounting portion between the trigger body 14 and the spin element 21 is exposed to the content liquid, the stress generated at the mounting portion is very small and it is difficult to induce environmental stress destruction.
[0025]
(Operation and Effect Corresponding to Claim 2)
{Circle around (2)} By inserting the spin element 21 in the mounting portion to the trigger body 14 in a dimensional relationship that does not cause backlash in the axial direction and the radial direction, it is possible to reliably generate a stress that induces environmental stress destruction in the mounting portion. Can be eliminated.
[0026]
(Operation and Effect Corresponding to Claim 3)
{Circle around (3)} The spin element 21 is a mounting portion for the trigger body 14, and is rotated by the rotation preventing portion including the convex portion 19C and the concave portion 21C even if the spin element 21 is mounted with a fitting allowance such that the liquid flows only in the flow path b1. Will be blocked. Therefore, when the nozzle 20 is relatively rotated with respect to the spin element 21 to switch the communication state of the liquid flow path c of the nozzle 20 with respect to the liquid flow path b of the spin element 21 and switch the discharge state of the liquid, The rotation of the element 21 can be prevented.
[0027]
(Operation and Effect Corresponding to Claim 4)
(4) Even when the content liquid contains sodium hypochlorite, it is possible to prevent environmental stress destruction at the mounting portion of the trigger body 14 and the spin element 21.
[0028]
In the present invention, the means for preventing the rotation of the spin element and the trigger body is not limited to the engagement by the concave and convex engagement, but may be the engagement by a screw engagement or the like.
[0029]
【The invention's effect】
According to the present invention, it is possible to provide a trigger-type liquid ejector that is less likely to cause environmental stress destruction.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a trigger type liquid ejector.
FIG. 2 is a sectional view showing a mounting portion of a trigger body, a spin element, and a nozzle.
FIG. 3 is a sectional view taken along the line III-III in FIG. 2;
FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;
FIG. 5 is a sectional view taken along line VV in FIG. 2;
FIG. 6 is a sectional view taken along the line VI-VI in FIG. 2;
FIG. 7 is a perspective view showing a spin element.
8A and 8B show a liquid stopped state, in which FIG. 8A is a schematic diagram, FIG. 8B is a cross-sectional view along the line BB of FIG. 8A, and FIG. It is sectional drawing which follows.
FIGS. 9A and 9B show a liquid ejection state, in which FIG. 9A is a schematic view, FIG. 9B is a cross-sectional view taken along the line BB of FIG. 9A, and FIG. It is sectional drawing which follows.
[Explanation of symbols]
Reference Signs List 10 Trigger type liquid ejector 14 Trigger body 19 Connecting cylinder 19A Fitting hole 20 Nozzle 20D Fitting hole 21 Spin element a, b, c Liquid flow path d Spouting hole

Claims (4)

トリガーボディの先端側にノズルを取付け、トリガーボディの液流路とノズルの噴出孔との間にスピンエレメントを設けてなるトリガー式液体噴出器であって、
スピンエレメントを、トリガーボディとノズルの少なくとも一方に設けた孔に挿入し、トリガーボディとノズルによって軸方向に挟み込み保持したトリガー式液体噴出器。
A trigger type liquid ejector comprising a nozzle attached to a tip side of a trigger body, and a spin element provided between a liquid flow path of the trigger body and an ejection hole of the nozzle,
A trigger type liquid ejector in which a spin element is inserted into a hole provided in at least one of a trigger body and a nozzle, and is sandwiched and held in an axial direction by the trigger body and the nozzle.
前記スピンエレメントをトリガーボディに設けた孔に軸方向、径方向にガタの生じない寸法関係で挿入された請求項1に記載のトリガー式液体噴出器。The trigger type liquid ejector according to claim 1, wherein the spin element is inserted into a hole provided in the trigger body in a dimensional relationship that does not cause backlash in an axial direction and a radial direction. 前記スピンエレメントをトリガーボディに対して回り止めし、前記ノズルをスピンエレメントに対して相対回転可能に嵌合した請求項1又は2に記載のトリガー式液体噴出器。The trigger type liquid ejector according to claim 1, wherein the spin element is prevented from rotating with respect to the trigger body, and the nozzle is fitted so as to be relatively rotatable with respect to the spin element. 前記噴出器の内容液が次亜塩素酸ナトリウムを含有する液体である請求項1〜3のいずれかに記載のトリガー式液体噴出器。The trigger type liquid ejector according to any one of claims 1 to 3, wherein the content liquid of the ejector is a liquid containing sodium hypochlorite.
JP2003068964A 2003-03-13 2003-03-13 Trigger liquid injector Withdrawn JP2004275844A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006136803A (en) * 2004-11-11 2006-06-01 Kao Corp Trigger type liquid jet receptacle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006136803A (en) * 2004-11-11 2006-06-01 Kao Corp Trigger type liquid jet receptacle
JP4589699B2 (en) * 2004-11-11 2010-12-01 花王株式会社 Trigger type liquid ejector

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