JPS6344122Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は、広く家庭等で用いられている指押
し式噴霧器に関するもので、噴霧状態の改善手段
と同時に弁機構を簡素化できるようなノズルアセ
ンブリーを提供することを目的とする。[Detailed description of the invention] This invention relates to a finger-push type sprayer that is widely used in homes, etc., and aims to provide a nozzle assembly that can simplify the valve mechanism as well as a means to improve the spray condition. purpose.

指押しピストン式噴霧器は、ノズルつきの押ボ
タンを冠着した中空弁茎の引上げストロークで噴
射液を前記した弁茎内に吸上げ、吸上げた液を押
下げストロークでノズルから放出するようになつ
ている。そして、この吸上げおよび放出作用を行
うため、弁茎の下端部にあたるシリンダには吸入
弁、上端部には放出弁と、それぞれ逆止弁が設け
てある。 A finger-push piston type sprayer uses a hollow valve stem crowned with a push button with a nozzle to draw up the injected liquid into the valve stem with a lifting stroke, and releases the sucked liquid from the nozzle with a downward stroke. ing. In order to carry out this suction and release action, a suction valve is provided in the cylinder at the lower end of the valve stem, a release valve is provided in the upper end, and a check valve is provided in each cylinder.

上記のような噴霧器ではまた、ノズルからの噴
霧状態を改善するため、噴射口の背後において放
出液の流れ方向に変化を与え、または、数本に分
流させた後、たがいに衝突合流させるための転流
部材を設けることも行われている。 In the above-mentioned sprayer, in order to improve the spray condition from the nozzle, it is necessary to change the flow direction of the ejected liquid behind the injection port, or to divide the liquid into several streams and then collide with each other and merge. Providing a commutation member is also practiced.

ところで、前記したように、指押しピストン式
噴霧器の用途は家庭用が主力であるから、低コス
トで提供できるように構造が簡素なことが要請さ
れることはいうまでもないが、噴霧が良好である
こともまた必要である。しかしながら実際にこれ
らの相反する要請を充たすのは非常にむずかし
い。 By the way, as mentioned above, finger-push piston type sprayers are mainly used for home use, so it goes without saying that they are required to have a simple structure so that they can be provided at low cost, but they also require good spraying. It is also necessary that However, it is extremely difficult to actually satisfy these contradictory demands.

この考案は、このようなむずかしい要請をほと
んど確実に充たすことができたもので、以下図示
の実施例によりこの考案を説明すれば、１は中空
弁茎で、押下げストロークによつて開く図示外の
逆止吸入弁を介し、図示外の容器に収容されてい
る噴射液を通過させるものである。２はノズル兼
用の押ボタンで、中空弁茎１に冠着されている。
３は筒状の嘴体で、噴射孔３１を中心に穿つた底
板３２、および押ボタン２に固定される裾筒３３
を有している。 This invention was able to almost certainly satisfy such difficult requirements, and the invention will be explained below with reference to an example shown in the drawings. 1 is a hollow valve stem, which opens with a push-down stroke. The injection liquid contained in a container (not shown) is allowed to pass through the check suction valve. 2 is a push button which also serves as a nozzle, and is mounted on the hollow valve stem 1.
3 is a cylindrical beak body, which includes a bottom plate 32 bored around the injection hole 31, and a hem tube 33 fixed to the push button 2.
have.

さて、この考案は、このような嘴体３と下記す
るような口蓋４とを組にしたものであるが、口蓋
４は円板状で、裾筒３３の内径に対応する径をも
つている。口蓋４の周面には切欠き４１が、また
表面中央には凹所４２が穿たれているが、凹所４
２は、図示のような浅い溝４３など、適宜な通路
を介して切欠き４１に接続している。図示の例で
は、切欠き４１の数は４個であるが、この数は１
個以上適宜に設計できる。また、図示例におい
て、凹所４２に対して溝４３が切線状に接続され
ているが、噴射液を旋回運動させるためである。
口蓋４の裏面周縁部４３は、押ボタン２の噴射通
路２１の出口外部における環状平面２２に係合し
て噴射通路２１の出口を閉じることは第１図に示
す通りである。 Now, in this invention, such a beak body 3 and a palate 4 as described below are combined, and the palate 4 is disc-shaped and has a diameter corresponding to the inner diameter of the hem tube 33. . A notch 41 is formed on the circumferential surface of the palate 4, and a recess 42 is bored in the center of the surface.
2 is connected to the notch 41 via a suitable passageway, such as a shallow groove 43 as shown. In the illustrated example, the number of notches 41 is four, but this number is 1.
More than one can be designed as appropriate. Further, in the illustrated example, the groove 43 is connected to the recess 42 in a tangential manner, but this is for causing the injection liquid to rotate.
The back peripheral edge 43 of the palate 4 engages with the annular plane 22 outside the outlet of the injection passage 21 of the push button 2 to close the outlet of the injection passage 21, as shown in FIG.

前記したように、噴射通路２１の出口が口蓋４
によつて閉じているとき、噴射通路２１に噴射液
が充たされた中空弁茎１の押下げによつて噴射通
路２１内の圧力が高まれば、その圧力は口蓋４に
かかることはいうまでもないが、口蓋４は、その
際裏面周縁部４３が、たとえば第２図のように圧
縮変形を受けるような軟弾性体でなければならな
い。 As mentioned above, the outlet of the injection passage 21 is located at the palate 4.
Needless to say, if the pressure inside the injection passage 21 increases due to the depression of the hollow valve stem 1 filled with injection liquid when the injection passage 21 is closed by the injection liquid, the pressure will be applied to the palate 4. However, the roof of the mouth 4 must be a soft elastic body in which the back peripheral edge 43 is subjected to compressive deformation, for example as shown in FIG.

さて、この考案は上記したような嘴体３と口蓋
４を組にしてなるので、第１図のようにこのノズ
ルアセンブリーを押ボタン２に装着すれば、口蓋
４が噴射通路２１の出口を外方から閉じており、
従つて、噴射液吸上げ時に起る噴射通路２１の負
圧に対抗して、外部からの空気の侵入を防ぐ。中
空弁茎１の押下げにより、中空弁茎１内の液が加
圧されれば、この圧力によつて口蓋４の裏面周縁
部４３が第２図のように圧縮変形し、従つてこの
変形によつて生じた隙間５から噴射通路２１内の
液が凹所３１に入り、噴射孔から放出されるの
で、口蓋４はひとつの逆止放出弁としての役割を
はたす。前記のような指押しポンプ式噴霧器に
は、中空弁茎１の下部にあたるシリンダには逆止
吸入弁が、中空弁茎１の上部には逆止放出弁がそ
れぞれ必要であり、特に逆止放出弁を設ける位置
は狭いので、その部分に特殊な構造を採用せざる
を得ないため、これが噴霧器のコスト上昇の一つ
の原因になつていたのであるが、この考案によれ
ば、口蓋４が前記した逆止放出弁の作用をはたす
ので、従来のように弁茎上部に逆止放出弁を設け
る必要がない。 Now, this invention consists of the beak body 3 and palate 4 as described above, so if this nozzle assembly is attached to the push button 2 as shown in FIG. Closed from the outside;
Therefore, it counteracts the negative pressure in the injection passage 21 that occurs when the injection liquid is sucked up, and prevents air from entering from the outside. When the liquid inside the hollow valve stem 1 is pressurized by pressing down the hollow valve stem 1, this pressure compresses and deforms the back peripheral edge 43 of the palate 4 as shown in FIG. The liquid in the injection passage 21 enters the recess 31 through the gap 5 created by this and is discharged from the injection hole, so that the palate 4 acts as a check discharge valve. The above-mentioned finger pump type sprayer requires a check suction valve in the lower cylinder of the hollow valve stem 1 and a check release valve in the upper part of the hollow valve stem 1. Since the position where the valve is provided is narrow, a special structure must be adopted for that part, which is one of the causes of the increase in the cost of the sprayer.According to this invention, the palate 4 is Since the valve functions as a check release valve, there is no need to provide a check release valve at the upper part of the valve stem as in the conventional case.

口蓋４は、周面には切欠き４１が、また表面中
央部には切欠き４１に接続する凹所４２がそれぞ
れ穿たれているので、口蓋４は、噴射通路２１を
流れる噴射液の流れの方向を転換する流動方向転
換部材の役割をはたす。 The roof of the mouth 4 has a notch 41 on its circumferential surface and a recess 42 connected to the notch 41 in the center of the surface, so that the roof of the mouth 4 allows the flow of the jet liquid flowing through the jet passage 21 to flow. It plays the role of a flow direction changing member that changes direction.

口蓋４はさらに、弁茎の不作動時にはその弾性
により、噴射通路２１の出口に圧着され、出口を
閉じているので、噴射通路２１の内圧がその弾性
を上まわるまでは裏面周縁部４３と噴射通路２１
出口の外面との間の通路を開かないので、噴射液
の蓄圧部材としての役割をもはたす。 Further, when the valve stem is inactive, the palate 4 is pressed against the outlet of the injection passage 21 due to its elasticity and closes the outlet, so that until the internal pressure of the injection passage 21 exceeds its elasticity, the palate 4 is in contact with the back peripheral edge 43 Passage 21
Since the passage between the outlet and the outer surface is not opened, it also serves as a pressure accumulating member for the injected liquid.

かくして、この考案によれば、口蓋４は逆止放
出弁の役割をはたすので、従来のように、弁茎に
付随する逆止放出弁が省略されるとともに、噴射
液の流動方向転換部材の役割をはたすので、改善
された細かい噴射状態を得ることができる。のみ
ならず、口蓋４は前記のように噴射液の蓄圧部材
の役割をもはたすので、前記した細かい霧をさら
に細かくし、かつ霧の到達距離を大きくすること
ができる。 Thus, according to this invention, the palate 4 plays the role of a check release valve, so that the conventional check release valve attached to the valve stem is omitted, and the palate 4 also plays the role of a flow direction changing member for the injected liquid. As a result, improved fine injection conditions can be obtained. In addition, since the palate 4 also serves as a pressure accumulating member for the sprayed liquid as described above, the fine mist described above can be made even finer and the distance that the mist can reach can be increased.

以上からわかるように、口蓋４それ自体は、噴
射口の背後に設けられる流動方向転換部材とかわ
りない簡単な構造物であり、しかもこれが組込ま
れることにより、従来の放出逆止弁が省略される
のでコスト低下に寄与するし、しかも前記したよ
うに流動方向転換部材を組込んだ従来の噴射装置
よりも一層すぐれた噴霧を得ることができる。 As can be seen from the above, the palate 4 itself is a simple structure similar to the flow direction changing member provided behind the injection port, and by incorporating this, the conventional discharge check valve is omitted. Therefore, it contributes to cost reduction, and moreover, as described above, it is possible to obtain a better spray than the conventional injection device incorporating the flow direction changing member.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案にかかるノズルアセンブリー
を装着した指押しポンプ式噴霧器の不作動時にお
ける要部縦断面図、第２図は同じく噴射時におけ
る要部縦断面図、第３図は口蓋の表面図、第４図
は第３図のＸ−Ｘ断面図、第５図は口蓋の裏面図
である。 １は中空弁茎、２は押ボタン、２１は噴射通
路、２２は環状平面、３は嘴体、３１は噴射口、
３２は底板、３３は裾筒、４は口蓋、４１は切欠
き、４２は凹所、４３は裏面周縁部、５は隙間で
ある。 Fig. 1 is a vertical cross-sectional view of the main part of a finger pump sprayer equipped with the nozzle assembly according to this invention when it is not in operation, Fig. 2 is a longitudinal cross-sectional view of the main part when injecting, and Fig. 3 is a longitudinal cross-sectional view of the main part of the finger pump sprayer equipped with the nozzle assembly according to this invention. A surface view, FIG. 4 is a sectional view taken along line XX in FIG. 3, and FIG. 5 is a back view of the palate. 1 is a hollow valve stem, 2 is a push button, 21 is an injection passage, 22 is an annular plane, 3 is a beak body, 31 is an injection port,
32 is a bottom plate, 33 is a hem tube, 4 is a palate, 41 is a notch, 42 is a recess, 43 is a back surface periphery, and 5 is a gap.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 押下げストロークによつて開く噴射弁を介して
噴射液を通過させる中空弁茎１に冠着したノズル
兼用の押ボタン２において、噴射孔３１を中心に
穿つた底板３２および押ボタン２に固定される裾
筒３３を有する筒状の嘴体３と、底板３２と押ボ
タン２の間に密に介挿される円板状の口蓋４とを
組にしてなり、口蓋４は、裾筒３３の内径に対応
する径を有し、周面に切欠き４１を穿ち、切欠き
４１に接続する凹所４２を表面中央に穿つととも
に、裏面周縁部４３が押ボタン２の噴射通路２１
の出口外部の環状平面２２に係合して噴射通路２
１の出口を閉じ、かつ噴射通路２１内の昇圧によ
つて前記裏面周縁部４３が圧縮変形を受けるよう
な軟弾性体からなる指押しポンプ式噴霧器のノズ
ルアセンブリー。 In a push button 2 which also serves as a nozzle and which is attached to a hollow valve stem 1 that allows the injection liquid to pass through an injection valve that is opened by a depressing stroke, the push button 2 is fixed to a bottom plate 32 bored around an injection hole 31 and to the push button 2. It is made up of a cylindrical beak body 3 having a hem tube 33 and a disc-shaped palate 4 that is tightly inserted between the bottom plate 32 and the push button 2. A notch 41 is bored in the circumferential surface, a recess 42 connected to the notch 41 is bored in the center of the surface, and the back surface periphery 43 is connected to the injection passage 21 of the push button 2.
The injection passage 2
A nozzle assembly for a finger pump type sprayer, which is made of a soft elastic body, with the outlet of the finger pump closed, and the back peripheral edge 43 subjected to compressive deformation due to increased pressure in the injection passage 21.