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JP5777854B2 - Liquid ejector - Google Patents
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JP5777854B2 - Liquid ejector - Google Patents

Liquid ejector Download PDF

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JP5777854B2
JP5777854B2 JP2010043108A JP2010043108A JP5777854B2 JP 5777854 B2 JP5777854 B2 JP 5777854B2 JP 2010043108 A JP2010043108 A JP 2010043108A JP 2010043108 A JP2010043108 A JP 2010043108A JP 5777854 B2 JP5777854 B2 JP 5777854B2
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stem
head
cylinder
opening
discharge port
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JP2011177628A (en
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後藤　孝之
孝之 後藤
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

本発明は、容器の口部に装着され、当該容器の内容物を外界に噴出させるための液体噴出器に関するものである。   The present invention relates to a liquid ejector that is attached to the mouth of a container and ejects the contents of the container to the outside.

従来の液体噴出器としては、例えば、図３及び図４に示すように、容器２０の口部２１の内側を通って垂下するシリンダ３１から補助シリンダ３５を起立させ、当該補助シリンダ３５の内側を摺動するステム３６に、このステム３６との間に形成した空間Ｃ0を通して内容物を圧送するヘッド３８を嵌合させ、このヘッド３８の押し下げ及び復帰によりピストン３９をシリンダ３１及びステム３６の内側を摺動させることで、ピストン３９の摺動にシリンダ３１内の吸入弁４０とステム３６の内側に形成した弁座３６ｓと接触する排出弁４１との開閉を応動させる液体噴出器であって、
ピストン３９と吸入弁４０との間に設けた逆止弁４３によって、容器２０を起立させた状態は勿論、容器２０を倒立させた状態でも内容物を噴霧させることができるようにしたものがある（例えば、特許文献１参照）。 As a conventional liquid ejector, for example, as shown in FIGS. 3 and 4, the auxiliary cylinder 35 is raised from a cylinder 31 that hangs down through the inside of the mouth portion 21 of the container 20, and the inside of the auxiliary cylinder 35 is A head 38 that presses the contents through a space C 0 formed between the stem 36 and the stem 36 is fitted to the sliding stem 36, and the piston 39 is moved to the inside of the cylinder 31 and the stem 36 by pressing and returning the head 38. Is a liquid jetting device that responds to the opening and closing of the suction valve 40 in the cylinder 31 and the discharge valve 41 in contact with the valve seat 36 s formed inside the stem 36 by sliding the piston 39. ,
A piston 39 by the check valve 43 provided between the suction valve 40, is that as well as a state of being erected container 20 can be sprayed the contents even when the container 20 was inverted Yes (for example, see Patent Document 1).

特開２０００−２１８１９８号公報JP 2000-218198 A

しかしながら、従来の液体噴出器は、液体の噴出にバラつきが生じることがあったが、本願発明者は、その原因が、図４に示すように、ステム３６とヘッド３８との間に形成される空間Ｃ0での圧力損失、特に従来は、ステム３６の上端に排出口Ａ2があるのに対し、排出弁４１の先端４１ａが着座する弁座３６ｓは、同図に示すように、ステム３６の下端側に存在し、これに伴う、当該弁座３６ｓから排出口Ａ2に至るステム３６の内部通路Ｐでの圧力損失及び、空間Ｃ0での圧力損失にあることを見出した。 However, in the conventional liquid ejector, the liquid ejection sometimes varies, but the inventor of the present application forms the cause between the stem 36 and the head 38 as shown in FIG. pressure loss in the space C 0, in particular conventional, whereas there is a discharge opening a 2 in the upper end of the stem 36, the valve seat 36 s tip 41a of the discharge valve 41 is seated, as shown in the figure, the stem present on the lower end side of the 36, accompanying this, the pressure loss inside the passage P of the stem 36 extending from the valve seat 36s to the outlet a 2 and were found to be in the pressure loss in the space C 0.

本発明の目的は、圧力損失の軽減された効率的な噴出を可能にする液体噴出器を提供することにある。   An object of the present invention is to provide a liquid ejector that enables efficient ejection with reduced pressure loss.

本発明の蓄圧式噴出器は、容器口部の内側を通って垂下するシリンダと、このシリンダを固定し当該シリンダの補助シリンダが起立する装着部材と、この装着部材の補助シリンダの内側を摺動するステムと、このステムを嵌合する凹部を有し当該ステムとの間に形成した空間を通して内容物が圧送されるヘッドと、このヘッドの押し下げ及び復帰によりシリンダ及びステムの内側を摺動して内容物を吸引、加圧及び圧送するピストンと、このピストンの摺動に応動してシリンダの吸入口を開閉する吸入弁と、ピストンの摺動に応動してステムの排出口を開閉してヘッドに内容物を圧送する排出弁とを備え、
当該排出口を、ステムの上端に形成し、当該排出口を形作る上端を、排出弁の先端が着座する弁座として構成し、
前記ヘッドの側面に形成された環状の凹溝に、このヘッドを通して圧送された内容物を外界に噴出させる開孔を有し当該ヘッドとの間に流路を形成するノズルチップを設け、
前記環状の凹溝によって該環状の凹溝の内側に前記ヘッドと一体に形成された円柱部の端面に、前記ノズルチップの開孔に通じる複数の流路を形成する複数の端面側凹溝を形成し、
前記ヘッドの前記円柱部の側面に、前記空間に開口して前記複数の端面側凹溝のそれぞれに通じる複数の流路を形成する複数の側面側凹溝を設け、
前記空間の一部として、前記ヘッドの側面とステムの外周面との間に、ステムの上端から前記環状の凹溝の下端を超える位置まで上下に延びると共に前記円柱部とステムとの間の全面に亘って形成された隙間を設け、当該隙間を通じて内容物を圧送させることを特徴とするものである。 The pressure-accumulation type ejector of the present invention includes a cylinder that hangs down through the inside of the container mouth, a mounting member that fixes the cylinder and stands up an auxiliary cylinder of the cylinder, and slides inside the auxiliary cylinder of the mounting member. And a head that has a recess for fitting the stem and the contents are pumped through a space formed between the stem and the inside of the cylinder and the stem by sliding and depressing the head. A piston that sucks, pressurizes, and pumps the contents, a suction valve that opens and closes the suction port of the cylinder in response to sliding of the piston, and a head that opens and closes the discharge port of the stem in response to sliding of the piston And a discharge valve for pressure-feeding the contents,
The discharge port is formed at the upper end of the stem, and the upper end forming the discharge port is configured as a valve seat on which the tip of the discharge valve is seated,
In the annular concave groove formed on the side surface of the head, there is provided a nozzle chip that has an opening for ejecting the contents pumped through the head to the outside and forms a flow path between the head and the head,
The end surface of the cylindrical portion formed integrally with the head on the inside of the annular groove by the annular groove, a plurality of end surface groove which forms a plurality of flow paths leading to the opening of the nozzle tip Forming ,
Provided on the side surface of the cylindrical portion of the head are a plurality of side-side grooves that form a plurality of channels that open into the space and communicate with each of the plurality of end-side grooves.
As a part of the space, between the side surface of the head and the outer peripheral surface of the stem, it extends vertically from the upper end of the stem to a position exceeding the lower end of the annular concave groove, and the entire surface between the cylindrical portion and the stem A gap formed over the gap is provided, and the content is pumped through the gap .

本発明に従えば、上述の弁座は、ステムの先端を内側に向かって環状に折り曲げることで構成することができる。従って、弁座は、例えば、ステムの上端のうち、当該ステムの先端の縁部で構成し、又は、排出弁の先端に環状の段差を設けることで、ステムの上端の背面を座部とすることも可能である。   According to the present invention, the above-described valve seat can be configured by bending the end of the stem in an annular shape toward the inside. Therefore, for example, the valve seat is constituted by an edge portion at the tip end of the stem among the upper ends of the stem, or an annular step is provided at the tip end of the discharge valve so that the back surface of the upper end of the stem is a seat portion. It is also possible.

本発明によれば、ノズルチップの開孔が位置する部分に、当該開孔に向かって突出する凸部を設けることができる。 According to the present invention, it is possible in a portion opening Roh Zuruchippu is located, provided with a protrusion protruding toward the opening.

本発明によれば、ステムの排出口を、その上端に形成し、当該排出口を形作る上端を、排出弁の先端が着座する弁座として構成したことから、排出弁の先端がステムの弁座から離脱することで圧送される内容物は、排出口からステムとヘッドとの間に形成された空間に直接圧送される。   According to the present invention, the discharge port of the stem is formed at the upper end thereof, and the upper end forming the discharge port is configured as a valve seat on which the tip of the discharge valve is seated. The contents which are pumped by being detached from are directly pumped from the discharge port to the space formed between the stem and the head.

これにより、排出弁が排出口を直接開閉することで、従来のように、ステムの上端に配置された排出口よりも下端側に弁座を設けた場合に比べ、ステム、ヘッド、排出弁で囲まれた空間を減少させ、当該排出口に至るまでに生じる圧力損失を軽減することができる。 Thus, by the discharge valve to open and close the discharge port directly, as in the past, compared with the case of providing the valve seat on the lower end side of the outlet disposed at the upper end of the stem, the stem, head, exhaust valve The space surrounded by can be reduced, and the pressure loss generated up to the exhaust port can be reduced.

これにより、本発明によれば、圧力損失の軽減された効率的な噴出が可能になる。従って、本発明によれば、従来に比べて細かい霧を噴射させることができる。また、上述の弁座は、ステムの先端を内側に向かって環状に折り曲げることで構成すれば、ステム、ヘッド、排出弁で囲まれた空間の減少につながり、圧力損失を軽減することができる。   As a result, according to the present invention, efficient ejection with reduced pressure loss becomes possible. Therefore, according to the present invention, it is possible to eject a finer mist than in the past. Further, if the above-described valve seat is configured by bending the end of the stem in an annular shape toward the inside, the space surrounded by the stem, the head, and the discharge valve is reduced, and pressure loss can be reduced.

本発明において、ノズルチップの開孔が位置する部分に、当該開孔に向かって突出する凸部を設ければ、ステムとヘッドとの間に形成された空間を通して圧送された内容物が、高い旋回速度で開孔に到達するため、従来に比べて細かい霧を噴射させることができる。 In the present invention, the portion located the opening Roh Zuruchippu, by providing a protrusion protruding toward the opening, the contents pumped through a space formed between the stem and the head is higher Since it reaches the opening at the turning speed, a fine mist can be ejected as compared with the conventional case.

また、本発明では、前記ヘッドの円柱部の端面に、当該ノズルチップの開孔に通じる複数の流路を形成する複数の端面側凹溝を形成することで、内容物が開孔に至るまで均一に流れるため、従来に比べて細かい霧を噴射させることができる。 Further, in the present invention, by forming a plurality of end surface side concave grooves that form a plurality of flow paths leading to the opening of the nozzle chip on the end surface of the cylindrical portion of the head, the contents reach the opening. Since it flows uniformly, a fine mist can be jetted compared with the past.

更に、前記ヘッドの円柱部の側面に、ステムとの間に形成した空間に開口して複数の端面側凹溝のそれぞれに通じる複数の流路を形成する複数の側面側凹溝を設ければ、内容物が開孔に通じる複数の流路を形成する複数の端面側凹溝に至るまで均一に流れるため、従来に比べて更に細かい霧を噴射させることができる。 Furthermore, if a plurality of side-surface concave grooves are formed on the side surface of the cylindrical portion of the head to form a plurality of flow paths that open to a space formed between the head and communicate with each of the plurality of end-surface side concave grooves. Further, since the contents flow uniformly to the plurality of end surface side grooves forming the plurality of flow paths leading to the opening, it is possible to eject a finer mist than the conventional one.

本発明の一形態である、容器用の噴霧スプレーを一部断面で示す側面図である。It is a side view which shows the spray for container which is one form of this invention in a partial cross section. 図１の要部拡大図である。It is a principal part enlarged view of FIG. 本発明の従来技術である、容器用の噴霧スプレーを一部断面で示す側面図である。It is a side view which shows the spray for container which is the prior art of this invention in a partial cross section. 図３の要部拡大図である。It is a principal part enlarged view of FIG.

以下、図面を参照して、本発明の一形態を詳細に説明する。   Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

図中、１は、ボトル形容器（図３参照）の口部上端に配置されるフランジ２を有し容器口部の内側を通って垂下するシリンダである。３は、フランジ２を固定する肩部４を有し当該肩部４の内側からシリンダ１の内径よりも大きな内径の補助シリンダ５が一体に起立する装着部材である。装着部材３は、その内側にねじ部３ｓを有し、容器口部に着脱可能に装着される。   In the figure, reference numeral 1 denotes a cylinder that has a flange 2 disposed at the upper end of the mouth of a bottle-shaped container (see FIG. 3) and hangs down through the inside of the container mouth. Reference numeral 3 denotes a mounting member that has a shoulder portion 4 for fixing the flange 2 and from which an auxiliary cylinder 5 having an inner diameter larger than the inner diameter of the cylinder 1 stands integrally from the inside of the shoulder portion 4. The mounting member 3 has a screw portion 3s on the inner side thereof, and is detachably mounted on the container mouth.

６は、装着部材３の補助シリンダ５の内側を液密状態に摺動する摺動筒７を有し当該摺動筒７の内側から一体に起立するステムである。８は、ステム６を嵌合する凹部８ａを有し当該ステム６との間に形成した空間Ｃ1を通して内容物が圧送されるヘッドである。 Reference numeral 6 denotes a stem that has a sliding cylinder 7 that slides inside the auxiliary cylinder 5 of the mounting member 3 in a liquid-tight state, and stands integrally from the inside of the sliding cylinder 7. Reference numeral 8 denotes a head that has a recess 8 a into which the stem 6 is fitted, and in which the content is pumped through a space C 1 formed between the stem 6.

９は、シリンダ１の内側を液密状態に摺動する摺動部９ａと、ステム６の内側を液密状態に摺動する摺動部９ｂとを有し、内容物を吸引、加圧及び圧送するピストンである。ピストン９は、ヘッド８の押し下げ及び復帰の繰り返しに応じてシリンダ１及びステム６の内側をそれぞれ摺動する。   9 includes a sliding portion 9a that slides inside the cylinder 1 in a liquid-tight state, and a sliding portion 9b that slides inside the stem 6 in a liquid-tight state. It is a piston that pumps. The piston 9 slides inside the cylinder 1 and the stem 6 in accordance with the repeated depression and return of the head 8.

１０は、ピストン９の摺動に応動してシリンダ１の下端に形成した吸入口Ａ1を開閉する吸入弁である。本形態では、吸入弁１０をボール弁で構成する。 A suction valve 10 opens and closes a suction port A 1 formed at the lower end of the cylinder 1 in response to sliding of the piston 9. In this embodiment, the suction valve 10 is a ball valve.

１１は、ピストン９の摺動に応動してステム６の内側に形成した排出口Ａ2を開閉してヘッド８に内容物を圧送する排出弁である。本形態では、排出弁１１をプランジャ弁で構成する。排出弁１１は、その下端に段部１１ｓが形成され、この段部１１ｓで、ピストン９の下端を保持する。 Reference numeral 11 denotes a discharge valve that opens and closes a discharge port A 2 formed inside the stem 6 in response to sliding of the piston 9 to pressure-feed the contents to the head 8. In this embodiment, the discharge valve 11 is a plunger valve. The discharge valve 11 has a step 11 s formed at the lower end thereof, and the step 11 s holds the lower end of the piston 9.

また、排出弁１１は、リターンスプリングＳを介してシリンダ１内に弾性保持されている。これにより、ピストン９は、排出弁１１と共に、リターンスプリングＳを介してシリンダ１内に弾性保持されている。   Further, the discharge valve 11 is elastically held in the cylinder 1 via a return spring S. Thereby, the piston 9 is elastically held in the cylinder 1 through the return spring S together with the discharge valve 11.

ステム６は、その排出口Ａ2を、当該ステム６の先端６ａを内側に向かって環状に折り曲げることで当該ステム６の上端６ｂに形成し、この排出口Ａ2を形作る上端６ｂを、排出弁１１の先端１１ａが着座する弁座６ｓとして構成する。更に詳細には、上端６ｂのうち、排出口Ａ2を形作る先端６ａの縁部を弁座６ｓとして構成する。 The stem 6 has a discharge port A 2 formed at the upper end 6b of the stem 6 by bending the tip 6a of the stem 6 in an annular shape toward the inside, and the upper end 6b forming the discharge port A 2 is formed as a discharge valve. 11 is configured as a valve seat 6s on which the tip 11a of the 11 is seated. More specifically, among the upper end 6b, constituting the edge of the distal end 6a that forms an outlet A 2 as a valve seat 6s.

なお、本発明に従えば、弁座６ｓは、ステム６の上端６ｂで構成することができる。従って、弁座６ｓは、ステム６の上端６ｂのうち、当該ステム６の先端６ａの下側に存在する縁部だけでなく、例えば、排出弁１１の先端１１ａに環状の段差を設けることで、上端６ｂの背面６ｆを座部とすることも可能である。 Incidentally, according to the present invention, the valve seat 6s can be configured at the upper end 6 b of the stem 6. Therefore, the valve seat 6s is provided with an annular step at the tip 11a of the discharge valve 11 as well as the edge existing below the tip 6a of the stem 6 in the upper end 6b of the stem 6. It is also possible to use the back surface 6f of the upper end 6b as a seat.

加えて、ヘッド８には、ノズルチップ１２が設けられている。ノズルチップ１２は、周壁１２ｃと、この周壁１２ｃの開口を封止する隔壁１２ｂとを一体に備え、この隔壁１２ｂには、開孔１２ａが形成されている。この開孔１２ａは、大径部１２ａ1と小径部１２ａ2からなる。 In addition, the nozzle 8 is provided in the head 8. The nozzle chip 12 is integrally provided with a peripheral wall 12c and a partition wall 12b for sealing the opening of the peripheral wall 12c, and an opening 12a is formed in the partition wall 12b. The opening 12a includes a large diameter portion 12a 1 and a small diameter portion 12a 2 .

ノズルチップ１２は、その周壁１２ｃがヘッド８の側面に形成された環状の凹溝８ｂに嵌合することで抜け止め保持されている。凹溝８ｂは、ステム６との間に形成された空間Ｃ1に通じ、当該凹溝８ｂの内側に円柱部８ｃを形作る。 The nozzle tip 12 is held and retained by the peripheral wall 12c fitting into an annular groove 8b formed in the side surface of the head 8. Groove 8b, through the space C 1 formed between the stem 6, forms a cylindrical portion 8c on the inner side of the concave groove 8b.

円柱部８ｃの端面８ｅには、複数の凹溝８ｇ1が形成されている。凹溝８ｇ1はそれぞれ、ノズルチップ１２の隔壁１２ｂとの間に、当該ノズルチップ１２の開孔１２ａに通じる流路を形成する。また、凹溝８ｇ1の合流部８ｅには、開孔１２ａに向かって突出する凸部８ｐが一体に設けられている。 A plurality of concave grooves 8g 1 are formed on the end face 8e of the cylindrical portion 8c. Each of the concave grooves 8g 1 forms a flow path leading to the opening 12a of the nozzle tip 12 between the partition 12b of the nozzle tip 12. Further, the merging section 8e of the groove 8 g 1, the convex portion 8p projecting toward the opening 12a is integrally provided.

凸部８ｐは、先端に向かって先細りする円錐形状としてなる。なお、凸部８ｐは、その先端を開孔１２ａの大径部１２ａ1とオーバーラップさせる構成としているが、これに限定されるものではない。 The convex portion 8p has a conical shape that tapers toward the tip. Incidentally, the convex portion 8p is has a configuration to the large diameter portion 12a 1 and the overlap of the opening 12a of the tip, but is not limited thereto.

加えて、円柱部８ｃの側面には、凹溝８ｇ1のそれぞれに通じる複数の凹溝８ｇ2が設けられている。凹溝８ｇ2はそれぞれ、ノズルチップ１２の周壁１２ａとの間に、ステム６との間に形成した空間Ｃ1に開口して当該空間Ｃ1に通じる流路を形成する。 In addition, a plurality of concave grooves 8g 2 communicating with the respective concave grooves 8g 1 are provided on the side surface of the cylindrical portion 8c. Each of the concave grooves 8g 2 forms a flow path that opens to the space C 1 formed between the nozzle tip 12 and the peripheral wall 12a of the nozzle tip 12 and communicates with the space C 1 .

なお、図１中、１３は、吸入弁１０の上方に配置されたスペーサである。スペーサ１３は、下端外縁に周方向に間隔を空けて複数のフィン１３ａを有し、これらのフィン１３ａは、リターンスプリングＳを介して排出弁１１を弾性保持する。   In FIG. 1, reference numeral 13 denotes a spacer disposed above the intake valve 10. The spacer 13 has a plurality of fins 13 a at circumferential intervals on the outer edge of the lower end, and these fins 13 a elastically hold the discharge valve 11 via the return spring S.

また、フィン１３ａの相互間はそれぞれ、複数の流路として構成されている。これらの流路から導入された内容物は、スペーサ１３の上端部を構成するピン１３ｂを案内に、排出弁１１に設けた開口部Ａ3からピストン９との流路を通ってステム６に圧送される。 Further, the fins 13a are each configured as a plurality of flow paths. The contents introduced from these flow paths are pumped from the opening A 3 provided in the discharge valve 11 to the stem 6 through the flow path between the piston 9 and the pin 13 b constituting the upper end of the spacer 13 as a guide. Is done.

本発明によれば、ステム６の排出口Ａ2を、当該ステム６の先端６ａを内側に向かって環状に折り曲げることで当該ステム６の上端６ｂに形成し、当該排出口Ａ2を形作る上端６ｂを、排出弁１１の先端１１ａが着座する弁座６ｓとして構成したことから、排出弁１１の先端１１ａがステム６の弁座６ｓから離脱することで圧送される内容物は、排出口Ａ2からステム６とヘッド８との間に形成された空間Ｃ1 に圧送される。 According to the present invention, the upper end 6b of the outlet A 2 of the stem 6, the distal end 6a of the stem 6 inwardly formed on the upper end 6b of the stem 6 by folding the annular, form the discharge port A 2 and since the tip 11a of the discharge valve 11 is constructed as a valve seat 6s seated, the contents of the tip 11a of the discharge valve 11 is pumped by leaving from the valve seat 6 s of the stem 6, the discharge port a 2 It is pumped into the space C 1 formed between the stem 6 and the head 8 from.

これに対し、従来は、図４等に示すように、ステム３６の上端に配置された排出口Ａ2よりも下端側に弁座３６ｓが設けられていることで、空間Ｃ0に加え、当該弁座３６ｓから排出口Ａ2に至る内部通路Ｐでも圧力損失を生じている。 In contrast, conventionally, as shown in FIG. 4 or the like, the valve seat 36s to the lower side of the discharge port A 2 disposed at the upper end of the stem 36 that is provided, in addition to the space C 0, the and create a pressure loss even internal passage P leading to the outlet a 2 from the valve seat 36 s.

即ち、本形態によれば、排出弁１１が排出口Ａ2を直接開閉することで、従来のように、ステム３６の上端に配置された排出口Ａ2よりも下端側に弁座３６ｓを設けた場合に比べ、ステム６、ヘッド８、排出弁１１で囲まれた空間を減少させ、当該排出口Ａ2に至るまでに生じる圧力損失を軽減することができる。 That is, according to this embodiment, since the discharge valve 11 to open and close the discharge port A 2 directly, as in the past, the valve seat 36s to the lower side of the discharge port A 2 disposed at the upper end of the stem 36 Compared with the case where it is provided, the space surrounded by the stem 6, the head 8, and the discharge valve 11 can be reduced, and the pressure loss generated up to the discharge port A 2 can be reduced.

これにより、本発明によれば、圧力損失の軽減された効率的な噴出が可能になる。従って、本発明によれば、従来に比べて細かい霧を噴射させることができる。また、本形態の如く、上述の弁座６ｓを、ステム６の先端６ａを内側に向かって環状に折り曲げることで構成すれば、ステム６、ヘッド８、排出弁１１で囲まれた空間の減少につながり、圧力損失を軽減することができる。   As a result, according to the present invention, efficient ejection with reduced pressure loss becomes possible. Therefore, according to the present invention, it is possible to eject a finer mist than in the past. Further, if the above-described valve seat 6s is configured by bending the tip 6a of the stem 6 in an annular shape inward as in the present embodiment, the space surrounded by the stem 6, the head 8, and the discharge valve 11 can be reduced. Connection and pressure loss can be reduced.

また、本形態の如く、ヘッド８に、このヘッド８を通して圧送された内容物を外界に噴出させる開孔１２ａを有し当該ヘッド８との間に流路を形成するノズルチップ１２を設けると共に、当該開孔１２ａが位置する部分に、当該開孔１２ａに向かって突出する凸部８ｐを設ければ、ステム６とヘッド８との間に形成された空間Ｃ 1 を通して圧送された内容物が、高い旋回速度で開孔１２ａに到達するため、従来に比べて細かい霧を噴射させることができる。 Further, as in this embodiment, the head 8 is provided with a nozzle chip 12 having an opening 12a for ejecting the contents pumped through the head 8 to the outside and forming a flow path between the head 8 and the head 8. If the protrusion 8p protruding toward the opening 12a is provided in the portion where the opening 12a is located, the contents pumped through the space C 1 formed between the stem 6 and the head 8 are Since it reaches the opening 12a at a high turning speed, a fine mist can be ejected as compared with the conventional case.

また、本形態の如く、ヘッド８に、ノズルチップ１２との間に、その開孔１２ａに通じる流路を形成する凹溝８ｇ1を形成すれば、内容物が開孔１２ａに至るまで均一に流れるため、従来に比べて細かい霧を噴射させることができる。 Further, as in the present embodiment, if the concave groove 8g 1 that forms a flow path leading to the opening 12a is formed between the head 8 and the nozzle chip 12, the contents are evenly distributed until reaching the opening 12a. Since it flows, a fine mist can be jetted compared with the past.

更に、上述の場合、本形態の如く、ヘッド８に、ステム６との間に形成した空間Ｃ 1 に開口して凹溝８ｇ1のそれぞれに通じる複数の流路を形成する凹溝８ｇ2を設ければ、内容物が凹溝８ｇ1に至るまで均一に流れるため、従来に比べて更に細かい霧を噴射させることができる。 Further, in the above-described case, as in the present embodiment, the head 8 is provided with a concave groove 8g 2 that opens into a space C 1 formed between the head 6 and forms a plurality of channels that communicate with each of the concave grooves 8g 1. If provided, the content flows uniformly until reaching the concave groove 8g 1 , so that a finer mist can be injected as compared with the conventional case.

上述したところは、本発明の一形態を示したに過ぎず、特許請求の範囲内において、種々の変更を加えることができる。例えば、上述の形態は、予め液体噴出器としてユニット化されているが、本発明に従えば、ユニット化させることなく、容器に対して個々のパーツを組み付けるものとすることもできる。また、スペーサ１３の有無は任意である。 The above description shows only one embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, the above embodiment has been unitized in advance as a liquid ejector, according to the present invention, without being unitized, it may be made of assembling the individual parts to the container. The presence or absence of the spacer 13 is arbitrary.

本発明は、例えば、化粧水、整髪料等の化粧品、虫除け等の医薬品及び、美容・健康用品の分野に係る液体噴出器として採用することができる。   The present invention can be used, for example, as a liquid ejector in the fields of cosmetics such as lotion, hairdressing agents, pharmaceuticals such as insect repellents, and beauty / health products.

１ シリンダ
２ フランジ
３ 装着部材
４ 肩部
５ 補助シリンダ
６ ステム
７ 摺動部
８ ヘッド
９ ピストン
１０ 吸入弁
１１ 排出弁
１１ａ 先端
１１ｂ 上端
１２ ノズルチップ
１２ａ 開孔
１２ｂ 隔壁
１２ｃ 周壁
１２ｇ1 凹溝
１２ｇ2 凹溝
１２ａ1 大径部
１２ａ2 小径部
１３ スペーサ
１３ａ フィン
１３ｂ ピン DESCRIPTION OF SYMBOLS 1 Cylinder 2 Flange 3 Mounting member 4 Shoulder part 5 Auxiliary cylinder 6 Stem 7 Sliding part 8 Head 9 Piston 10 Intake valve 11 Discharge valve 11a Tip 11b Upper end 12 Nozzle tip 12a Opening 12b Partition 12c Circumferential wall 12g 1 Concave groove 12g 2 Concave Groove 12a 1 Large diameter portion 12a 2 Small diameter portion 13 Spacer 13a Fin 13b Pin

Claims (3)

容器口部の内側を通って垂下するシリンダと、このシリンダを固定し当該シリンダの補助シリンダが起立する装着部材と、この装着部材の補助シリンダの内側を摺動するステムと、このステムを嵌合する凹部を有し当該ステムとの間に形成した空間を通して内容物が圧送されるヘッドと、このヘッドの押し下げ及び復帰によりシリンダ及びステムの内側を摺動して内容物を吸引、加圧及び圧送するピストンと、このピストンの摺動に応動してシリンダの吸入口を開閉する吸入弁と、ピストンの摺動に応動してステムの排出口を開閉してヘッドに内容物を圧送する排出弁とを備え、
当該排出口を、ステムの上端に形成し、当該排出口を形作る上端を、排出弁の先端が着座する弁座として構成し、
前記ヘッドの側面に形成された環状の凹溝に、このヘッドを通して圧送された内容物を外界に噴出させる開孔を有し当該ヘッドとの間に流路を形成するノズルチップを設け、
前記環状の凹溝によって該環状の凹溝の内側に前記ヘッドと一体に形成された円柱部の端面に、前記ノズルチップの開孔に通じる複数の流路を形成する複数の端面側凹溝を形成し、
前記ヘッドの前記円柱部の側面に、前記空間に開口して前記複数の端面側凹溝のそれぞれに通じる複数の流路を形成する複数の側面側凹溝を設け、
前記空間の一部として、前記ヘッドの側面とステムの外周面との間に、ステムの上端から前記環状の凹溝の下端を超える位置まで上下に延びると共に前記円柱部とステムとの間の全面に亘って形成された隙間を設け、当該隙間を通じて内容物を圧送させることを特徴とする液体噴出器。 A cylinder that hangs down through the inside of the container mouth, a mounting member that fixes the cylinder and the auxiliary cylinder of the cylinder rises, a stem that slides inside the auxiliary cylinder of the mounting member, and the stem A head which has a concave portion to which the contents are pumped through a space formed between the stem and the inside of the cylinder and the stem by the depression and return of the head to suck, pressurize and pump the contents. A piston that opens and closes the suction port of the cylinder in response to sliding of the piston, and a discharge valve that opens and closes the discharge port of the stem in response to sliding of the piston and pumps the contents to the head. With
The discharge port is formed at the upper end of the stem, and the upper end forming the discharge port is configured as a valve seat on which the tip of the discharge valve is seated,
In the annular concave groove formed on the side surface of the head, there is provided a nozzle chip that has an opening for ejecting the contents pumped through the head to the outside and forms a flow path between the head and the head,
The end surface of the cylindrical portion formed integrally with the head on the inside of the annular groove by the annular groove, a plurality of end surface groove which forms a plurality of flow paths leading to the opening of the nozzle tip Forming ,
Provided on the side surface of the cylindrical portion of the head are a plurality of side-side grooves that form a plurality of channels that open into the space and communicate with each of the plurality of end-side grooves.
As a part of the space, between the side surface of the head and the outer peripheral surface of the stem, it extends vertically from the upper end of the stem to a position exceeding the lower end of the annular concave groove, and the entire surface between the cylindrical portion and the stem A liquid ejector characterized in that a gap formed over the gap is provided and the content is pumped through the gap . 請求項１において、前記ノズルチップの開孔が位置する部分に、当該開孔に向かって突出する凸部を設けたことを特徴とする液体噴出器。 2. The liquid ejector according to claim 1 , wherein a convex portion protruding toward the opening is provided in a portion where the opening of the nozzle tip is located. 請求項１又は２において、前記排出口を、ステムの先端を内側に向かって環状に折り曲げることで当該ステムの上端に形成し、当該排出口を形作る上端を、排出弁の先端が着座する弁座として構成したことを特徴とする液体噴出器。 3. The valve seat according to claim 1 or 2 , wherein the discharge port is formed at the upper end of the stem by bending the end of the stem in an annular shape toward the inside, and the upper end forming the discharge port is seated on the front end of the discharge valve. The liquid ejector characterized by comprising as follows.
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