JP2009056375A - Shut-off nozzle - Google Patents

Shut-off nozzle Download PDF

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Publication number
JP2009056375A
JP2009056375A JP2007224752A JP2007224752A JP2009056375A JP 2009056375 A JP2009056375 A JP 2009056375A JP 2007224752 A JP2007224752 A JP 2007224752A JP 2007224752 A JP2007224752 A JP 2007224752A JP 2009056375 A JP2009056375 A JP 2009056375A
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Prior art keywords
shut
flange
nozzle
pin
internal pressure
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JP2007224752A
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JP4975559B2 (en
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Takayuki Goto
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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
    • 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
    • B05B11/1052—Actuation means
    • B05B11/1053—Actuation means combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shut-off nozzle which does not cause leakage of liquid even when left for a long period after use. <P>SOLUTION: The shut-off nozzle has a shut pin 130 having a flange 140 sliding along a lateral path and being capable of sealing the discharge hole A with the tip 131 of the pin, a coil 150 arranged between the flange 140 and the lateral path and energizing the pin 130 forward to seal the discharge hole A and a lever 160 moving the pin 130 backward by pushing down the pressing head 120 to open the discharge hole A. The flange 140 and the pin 130 are formed separately, and the flange 140 is held so as to be slidable along the pin 130. Between the shut pin 130 and the flange 140 is arranged an auxiliary coil 170 which cancels the energizing force of the coil 150 to be applied to the flange and moves the flange 140 backward against the increasing internal pressure of the nozzle 100 and the energizing force of the coil 150. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、注出が容易で液切れが良く、液詰まりの生じにくいシャットオフノズルに関するものである。   The present invention relates to a shut-off nozzle that is easy to pour out, has good liquid drainage, and is less likely to cause clogging.

本願出願人は既に、容器のステムに繋がる基部を有し当該基部から起立する上筒部がステムを通る内容物の通路となるジョイントと、このジョイントの上筒部と摺動可能に嵌合する下筒部を有し当該下筒部に繋がる横向き通路を通ってその前方に形成した注出孔に当該上筒部を通じさせる押圧ヘッドと、この押圧ヘッドの横向き通路に沿って摺動するフランジを有し先端が注出孔を封止可能なシャットピンと、フランジと横向き通路の後壁との間に介在してシャットピンを前方に付勢して排出孔を封止させる弾性部材と、押圧ヘッドの押し下げによってジョイントと接触して当該接触に伴う揺動によりシャットピンを後方に移動させて排出孔を開放するレバーとを備えるシャットオフノズルを提案済みである（例えば、特許文献１参照。）
特開２００２−３２６０４４号公報（図１等） The applicant of the present application already has a base part connected to the stem of the container, and an upper cylinder part standing from the base part is slidably fitted to the upper cylinder part of this joint, which serves as a passage for contents passing through the stem. A pressing head that has a lower cylinder portion and passes through the lateral passage that is connected to the lower cylinder portion and passes the upper cylindrical portion through an extraction hole formed in front thereof, and a flange that slides along the lateral passage of the pressing head. A shut pin having a tip that can seal the discharge hole, an elastic member that is interposed between the flange and the rear wall of the lateral passage and urges the shut pin forward to seal the discharge hole, and a pressure head A shut-off nozzle having a lever that opens a discharge hole by moving the shut pin backward by swinging associated with the contact by pressing down the joint has been proposed (see, for example, Patent Document 1).
JP 2002-326044 A (FIG. 1 etc.)

しかしながら、従来のシャットオフノズルは、例えば、エアゾール容器のノズルとして使用する場合、使用後、長期に亘り放置すると、微量ながらも注出孔からノズル内に残留した液が漏れることがあった。   However, when the conventional shut-off nozzle is used as, for example, a nozzle of an aerosol container, if it is left for a long time after use, the liquid remaining in the nozzle may leak from the spout hole although it is a small amount.

そこで、本願発明者は、従来のシャットオフノズルを試験・研究の結果、かかる液洩れがノズル内での内圧の上昇にあることを認識するに至った。   Therefore, as a result of testing and research on the conventional shut-off nozzle, the inventor of the present application has come to recognize that such a liquid leak is an increase in internal pressure in the nozzle.

本発明は、こうした事実認識に基づいてなされたものであり、その目的とするところは、使用後、長期に亘り放置しても、液漏れを生じないシャットオフノズルを提供することにある。   The present invention has been made on the basis of such fact recognition, and an object of the present invention is to provide a shut-off nozzle that does not leak even when used for a long time after use.

本発明は、容器のステムに繋がる基部を有し当該基部から起立する上筒部がステムを通る内容物の通路となるジョイントと、このジョイントの上筒部と摺動可能に嵌合する下筒部を有し当該下筒部に繋がる横向き通路を通ってその前方に形成した注出孔に当該上筒部を通じさせる押圧ヘッドと、この押圧ヘッドの横向き通路に沿って摺動するフランジを有し先端が注出孔を封止可能なシャットピンと、フランジと横向き通路の後壁との間に介在してシャットピンを前方に付勢して排出孔を封止させる弾性部材と、押圧ヘッドの押し下げによってジョイントと接触して当該接触に伴う揺動によりシャットピンを後方に移動させて排出孔を開放するレバーとを備えるシャットオフノズルにおいて、前記フランジをシャットピンと別体に形成し、このシャットピンに沿って摺動可能に保持すると共に、シャットピンとフランジとの間に、フランジに加わる前記弾性部材からの付勢力を相殺し、ノズルの内圧上昇に従い、この内圧と共に弾性部材からの付勢力に抗して当該フランジを後方に移動させる補助弾性部材を介在させたことを特徴とするものである。   The present invention includes a joint having a base connected to the stem of the container, and an upper cylinder standing from the base serving as a passage for contents passing through the stem, and a lower cylinder slidably fitted to the upper cylinder of the joint A pressing head that passes through the upper cylindrical portion through a lateral passage that is connected to the lower cylindrical portion and that passes through the upper cylindrical portion, and a flange that slides along the lateral passage of the pressing head. A shut pin whose front end can seal the discharge hole, an elastic member interposed between the flange and the rear wall of the lateral passage to urge the shut pin forward to seal the discharge hole, and a pressing head down The flange is formed separately from the shut pin in a shut-off nozzle comprising a lever that contacts the joint by the lever and moves the shut pin backward by swinging with the contact to open the discharge hole. While being held slidably along the shut pin, the urging force from the elastic member applied to the flange is offset between the shut pin and the flange, and the urging force from the elastic member together with the internal pressure increases as the internal pressure of the nozzle increases. An auxiliary elastic member for moving the flange rearward against this is interposed.

なお、本発明に係るジョイントは、ステムを直接固定する構成であっても、別途異なる部材を介して繋ぐ構成であってもよい。また、本発明によれば、ジョイントの上筒部と、押圧ヘッドの下筒部との相互間に、ノズルの内圧上昇に従って拡大する空間を形成することが好ましい。更に、本発明に係る容器はエアゾール容器とすることができる。   In addition, even if the joint which concerns on this invention is the structure which fixes a stem directly, the structure connected through a different member may be sufficient. Moreover, according to this invention, it is preferable to form the space which expands according to the internal pressure rise of a nozzle between the upper cylinder part of a joint, and the lower cylinder part of a press head. Furthermore, the container according to the present invention can be an aerosol container.

本発明であるシャットオフノズルによれば、フランジと押圧ヘッドの横向き通路の後壁との間に弾性部材を介在させて、シャットピンの先端で注出孔を封止するにあたり、このシャットピンのフランジを別体に形成してシャットピンに沿って摺動可能に保持すると共に、当該フランジとシャットピンとの間に弾性部材からの付勢力を相殺し、ノズルの内圧上昇に従い、この内圧と共に弾性部材からの付勢力に抗して当該フランジを後方に移動させる補助弾性部材を介在させたことで、ノズルの内圧が上昇しても、フランジが後方に移動して横向き通路の前壁とフランジとの間の空間が増大することにより、ノズルの内圧上昇を抑制することができる。   According to the shut-off nozzle of the present invention, an elastic member is interposed between the flange and the rear wall of the lateral passage of the pressing head, and when the discharge hole is sealed at the tip of the shut pin, A flange is formed separately and slidably held along the shut pin, and the urging force from the elastic member is canceled between the flange and the shut pin, and according to the increase in the internal pressure of the nozzle, the elastic member together with the internal pressure By interposing an auxiliary elastic member that moves the flange backward against the urging force from the nozzle, even if the internal pressure of the nozzle rises, the flange moves backward and the front wall of the lateral passage and the flange An increase in the internal pressure of the nozzle can be suppressed by increasing the space between them.

従って、本発明によれば、使用後、長期に亘り放置したときにノズルの内圧が上昇しても、ノズル内に残留した液が注出孔から漏れることがない。   Therefore, according to the present invention, even if the internal pressure of the nozzle rises when left for a long time after use, the liquid remaining in the nozzle does not leak from the dispensing hole.

しかも、本発明によれば、シャットオフピンを後方に移動させて内容物の注出を可能とするための系と、横向き通路の前壁とフランジとの間の空間を増大させてノズルの内圧上昇を抑制するための系とが、互いに独立した系となる。即ち、本発明によれば、押圧ヘッドの押下げ動作に起因する本来の注出動作と、押圧ヘッドの押下げ動作に起因しない液洩れを防止するための動作とを別個独立した機能として確保することができる。   In addition, according to the present invention, the internal pressure of the nozzle is increased by increasing the space between the front wall of the lateral passage and the flange for moving the shut-off pin rearward to allow the contents to be poured out. The system for suppressing the rise is an independent system. That is, according to the present invention, the original dispensing operation resulting from the pressing operation of the pressing head and the operation for preventing liquid leakage not resulting from the pressing operation of the pressing head are ensured as separate functions. be able to.

更に、本発明において、ジョイントの上筒部と、押圧ヘッドの下筒部との相互間に、ノズルの内圧上昇に従って拡大する空間を形成すれば、ジョイントと押圧ヘッドとの間の摺動によっても、ノズルの内圧上昇が抑制されるため、液漏れの防止を更に確実なものとすることができる。   Furthermore, in the present invention, if a space is formed between the upper cylinder portion of the joint and the lower cylinder portion of the pressing head so as to expand as the internal pressure of the nozzle increases, the sliding between the joint and the pressing head can also be achieved. Since the increase in the internal pressure of the nozzle is suppressed, the prevention of liquid leakage can be further ensured.

また、本発明に係る容器として、エアゾール容器を採用すれば、液漏れの防止に特に有効である。   Further, if an aerosol container is employed as the container according to the present invention, it is particularly effective for preventing liquid leakage.

以下、図面を参照して本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the drawings.

図１〜３はそれぞれ、本発明の一形態であるシャットオフノズル100の初期状態、注出状態及び注出完了後の内圧上昇状態を側面から示す縦断面図である。   1 to 3 are longitudinal sectional views showing the initial state, the pouring state, and the internal pressure increasing state after completion of the pouring of the shut-off nozzle 100 according to one embodiment of the present invention from the side.

符号110は、エアゾール容器ＣのステムＳに固定される基部111を有するジョイントである。この基部111は、ステムＳを固定する装着筒を構成し、この装着筒111には、環状の天壁112と介して外装筒113が一体に設けられている。   Reference numeral 110 denotes a joint having a base 111 fixed to the stem S of the aerosol container C. The base 111 constitutes a mounting cylinder for fixing the stem S, and the mounting cylinder 111 is integrally provided with an exterior cylinder 113 via an annular top wall 112.

更に装着筒111には、この装着筒111から起立する上筒部114が一体に設けられている。上筒部114は、装着筒111と同軸に配置され、その内側がステムＳを通る内容物の通路となる。   Further, the mounting cylinder 111 is integrally provided with an upper cylinder portion 114 that stands up from the mounting cylinder 111. The upper cylinder portion 114 is disposed coaxially with the mounting cylinder 111, and the inside thereof serves as a passage for the contents passing through the stem S.

符号120は、ジョイント110の上部に配置される押圧ヘッドである。詳細には、押圧ヘッド120は、ジョイント110を上下動可能に収納して使用者が実際に押圧するヘッド本体121を有する。   Reference numeral 120 denotes a pressing head disposed on the upper portion of the joint 110. Specifically, the pressing head 120 includes a head body 121 that accommodates the joint 110 so as to be movable up and down and is actually pressed by a user.

ヘッド本体121は、ジョイント110の上筒部114と摺動可能に嵌合する下筒部121aを有し、更にその内側には、開口部121bを経て下筒部121aに繋がり横向きに延びる空洞部ｈが形成されている。この空洞部ｈは、その前方が開口すると共に、その後方が後壁121cにより仕切られた円筒形をなしている。   The head main body 121 has a lower cylindrical portion 121a that is slidably fitted to the upper cylindrical portion 114 of the joint 110, and further inside, a hollow portion that is connected to the lower cylindrical portion 121a via the opening 121b and extends sideways. h is formed. The hollow portion h has a cylindrical shape with an opening at the front and a rear wall partitioned by a rear wall 121c.

空洞部ｈは、その前方が開口するため、注出孔Ａが形成されたノズル本体122が取り付けられている。これにより、ヘッド本体121内の空洞部ｈには、ノズル本体122と後壁121cとの間に下筒部121aに繋がる横向き通路121dが形成される。即ち、押圧ヘッド120は、下筒部121aに繋がる横向き通路121dを通って注出孔Ａに当該上筒部121aを通じさせる。   Since the front of the hollow portion h opens, the nozzle body 122 in which the extraction hole A is formed is attached. As a result, in the hollow portion h in the head main body 121, a lateral passage 121d connected to the lower cylinder portion 121a is formed between the nozzle main body 122 and the rear wall 121c. That is, the pressing head 120 passes the upper cylinder part 121a through the lateral passage 121d connected to the lower cylinder part 121a and into the extraction hole A.

符号130は、先端131が注出孔Ａを封止可能なほぼ円筒形のシャットピンである。本形態において、シャットピン130の先端131は、変形及び復元の可能な弾性材料からなり、注出孔Ａの封止を確実なものとする。   Reference numeral 130 denotes a substantially cylindrical shut pin whose tip 131 can seal the extraction hole A. In this embodiment, the tip 131 of the shut pin 130 is made of an elastic material that can be deformed and restored, and the sealing of the pouring hole A is ensured.

符号140は、横向き通路121dに沿って摺動するフランジである。詳細には、フランジ140は、シャットピン130を同軸状に取り囲む円筒部141を有し、この円筒部141の後端には、前方に向かって折り返した環状の舌片を構成し、横向き通路121d（空洞部ｈ）の内周部に摺動可能に保持される外周縁142が一体に形成されている。   Reference numeral 140 denotes a flange that slides along the lateral passage 121d. More specifically, the flange 140 has a cylindrical portion 141 that coaxially surrounds the shut pin 130, and an annular tongue piece that is folded back forward is formed at the rear end of the cylindrical portion 141, and a lateral passage 121d. An outer peripheral edge 142 slidably held on the inner peripheral part of the (cavity part h) is integrally formed.

加えて、円筒部141の前端には、シャットピン130の外周部に摺動可能に保持される環状の内周縁143が一体に形成されている。これにより、フランジ140は、シャットピン130の軸線方向に沿って一定の力が付勢されない限り、シャットピン130に対して固定保持され、一定以上の力が付勢されることで始めて、シャットピン130に対して摺動する。   In addition, an annular inner peripheral edge 143 that is slidably held on the outer peripheral portion of the shut pin 130 is integrally formed at the front end of the cylindrical portion 141. As a result, the flange 140 is fixedly held with respect to the shut pin 130 unless a constant force is urged along the axial direction of the shut pin 130, and the flange pin 140 starts only when a certain force is urged. Slide against 130.

符号150は、横向き通路121dの後壁121cとフランジ140との間に介在する弾性部材たるコイルスプリングである。コイルスプリング150は、フランジ140を介してシャットピン130を前方に付勢し、これにより、シャットピン130は、その先端131で注出孔Ａを封止する。   Reference numeral 150 denotes a coil spring which is an elastic member interposed between the rear wall 121c of the lateral passage 121d and the flange 140. The coil spring 150 urges the shut pin 130 forward via the flange 140, whereby the shut pin 130 seals the pouring hole A at its tip 131.

符号160は、押圧ヘッド120の押し下げによってシャットピン130を後方に移動させて排出孔Ａを開放するためのレバーである。   Reference numeral 160 denotes a lever for opening the discharge hole A by moving the shut pin 130 rearward when the pressing head 120 is pushed down.

詳細には、レバー160は、２つの端部161及び162を有し、互いのなす角度が鈍角をなす略Ｌ字形の部材であり、ヘッド本体121の下部に取り付けられた軸受部材Ｍにより、ピンＰを介して揺動可能に保持されている。   More specifically, the lever 160 is a substantially L-shaped member having two end portions 161 and 162 and having an obtuse angle with each other, and the pin 160 is formed by a bearing member M attached to the lower portion of the head body 121. It is held so as to be able to swing through P.

レバー160の一方の端部（上端部）161には、切欠き161aが形成されている。これにより、レバー160は、切欠き161aにシャットピン130の後端に設けた括れ部130cを挟み込むことで、シャットピン130に連結される。   A notch 161 a is formed in one end (upper end) 161 of the lever 160. Accordingly, the lever 160 is coupled to the shut pin 130 by sandwiching the constricted portion 130c provided at the rear end of the shut pin 130 in the notch 161a.

これに対し、レバー160の他方の端部（下端部）162は、図２に示すように、押圧ヘッド120の押し下げによって、ジョイント110の天壁112に接触しつつ、この天壁112を押圧することで、その反力として、当該レバー150をピンＰの周りに、その上端部161が後方に倒れ込むように揺動させる。   On the other hand, the other end (lower end) 162 of the lever 160 presses the top wall 112 while being in contact with the top wall 112 of the joint 110 when the pressing head 120 is pushed down, as shown in FIG. Thus, as the reaction force, the lever 150 is swung around the pin P so that the upper end portion 161 falls backward.

これにより、レバー160は、押圧ヘッド120の押し下げによって、図２に示すように、ジョイント110と接触して当該接触に伴う揺動によりシャットピン130を後方に移動させて注出孔Ａを開放する。   Thereby, as shown in FIG. 2, the lever 160 is brought into contact with the joint 110 by pushing down the pressing head 120, and the shut pin 130 is moved rearward by swinging associated with the contact, thereby opening the outlet hole A. .

符号170は、シャットピン130とフランジ140との間に介在するコイルスプリングである。   Reference numeral 170 is a coil spring interposed between the shut pin 130 and the flange 140.

詳細には、コイルスプリング170は、その前端がシャットピン130の前側に設けたリブ132に保持されると共に、その後端がフランジ140の円筒部141と外周縁142とを一体に繋ぐ環状の座部144に保持される。   Specifically, the coil spring 170 has an annular seat portion whose front end is held by a rib 132 provided on the front side of the shut pin 130 and whose rear end integrally connects the cylindrical portion 141 and the outer peripheral edge 142 of the flange 140. Held at 144.

これにより、コイルスプリング170は、フランジ140に加わるコイルスプリング150からの付勢力を相殺し、ノズル100の内圧上昇に従い、この内圧と共にコイルスプリング150からの付勢力に抗して当該フランジ140を後方に移動させる補助弾性部材として機能する。   As a result, the coil spring 170 cancels the biasing force from the coil spring 150 applied to the flange 140, and the flange 140 is moved rearward against the biasing force from the coil spring 150 together with this internal pressure as the internal pressure of the nozzle 100 increases. It functions as an auxiliary elastic member to be moved.

即ち、本発明に従うシャットオフノズル100によれば、シャットピン130のフランジ140と押圧ヘッド120の横向き通路121dの後壁121cとの間にコイルスプリング150を介在させて、シャットピン130の先端部131で注出孔Ａを封止するにあたり、このシャットピン130のフランジ140を別体に形成してシャットピン130に沿って摺動可能に保持すると共に、当該フランジ140とシャットピン130との間にコイルスプリング150からの付勢力を相殺し、ノズル100の内圧上昇に従い、この内圧と共にコイルスプリング150からの付勢力に抗して当該フランジ140を後方に移動させるコイルスプリング170を介在させたことで、ノズル100の内圧が上昇しても、図３に示すように、フランジ140が後方に移動してノズル本体122とフランジ140との間の空間Ｒ1（横向き通路121d）が増大することにより、ノズル100の内圧上昇を抑制することができる。 That is, according to the shut-off nozzle 100 according to the present invention, the coil spring 150 is interposed between the flange 140 of the shut pin 130 and the rear wall 121c of the lateral passage 121d of the pressing head 120, so that the tip 131 of the shut pin 130 is inserted. In order to seal the pouring hole A, the flange 140 of the shut pin 130 is formed separately and is slidably held along the shut pin 130, and between the flange 140 and the shut pin 130. By offsetting the urging force from the coil spring 150 and interposing a coil spring 170 that moves the flange 140 backward against the urging force from the coil spring 150 together with this internal pressure as the internal pressure of the nozzle 100 increases. also the internal pressure of the nozzle 100 is raised, as shown in FIG. 3, the space R 1 (lateral passage 121d) between the nozzle body 122 and the flange 140 flange 140 is moved rearward child increase Accordingly, it is possible to suppress the increase in internal pressure of the nozzle 100.

従って、本発明に従うシャットオフノズル100によれば、使用後、長期に亘り放置したときにノズル100の内圧が上昇しても、ノズル100内に残留した液が注出孔Ａから漏れることがない。   Therefore, according to the shut-off nozzle 100 according to the present invention, even if the internal pressure of the nozzle 100 rises when left for a long time after use, the liquid remaining in the nozzle 100 does not leak from the dispensing hole A. .

しかも、本発明に従うシャットオフノズル100によれば、シャットピン130を後方に移動させて内容物の注出を可能とするための系と、ノズル本体122とフランジ140との間の空間Ｒ1を増大させてノズル100の内圧上昇を抑制するための系とが、互いに独立した系となる。即ち、本発明に従うシャットオフノズル100によれば、押圧ヘッド120の押下げ動作に起因する本来の注出動作と、押圧ヘッド120の押下げ動作に起因しない液洩れを防止するための動作とを別個独立した機能として確保することができる。 Moreover, according to the shut-off nozzle 100 according to the present invention, the space R 1 between the nozzle body 122 and the flange 140 and the system for allowing the contents to be poured by moving the shut pin 130 rearward are provided. A system for increasing the internal pressure of the nozzle 100 and suppressing the increase in the internal pressure is a system independent of each other. That is, according to the shut-off nozzle 100 according to the present invention, the original dispensing operation caused by the pressing operation of the pressing head 120 and the operation for preventing liquid leakage not caused by the pressing operation of the pressing head 120 are performed. It can be secured as a separate and independent function.

ところで、シャットオフノズルは一般に、ジョイント110の上筒部114と、押圧ヘッド120の下筒部121aとの間を、レバー160を揺動させる機能を確保するために、互いに摺動可能に嵌合させている。   By the way, the shut-off nozzle is generally slidably fitted between the upper cylinder part 114 of the joint 110 and the lower cylinder part 121a of the pressing head 120 in order to ensure the function of swinging the lever 160. I am letting.

これに対し、本発明に従うシャットオフノズル100は、図３に示すように、ノズル100の内圧が上昇した状態にあっても、レバー160の下端部162がジョイント110に接触しない位置にある。言い換えれば、この間隔Ｘは、ノズル100の内圧上昇に従って、その相互間に形成された空間Ｒ2を拡大させるための予備摺動量である。 On the other hand, the shut-off nozzle 100 according to the present invention is in a position where the lower end portion 162 of the lever 160 does not contact the joint 110 even when the internal pressure of the nozzle 100 is increased, as shown in FIG. In other words, this interval X is a preliminary sliding amount for expanding the space R 2 formed between the nozzles 100 as the internal pressure of the nozzle 100 increases.

即ち、本発明に従うシャットオフノズル100のように、ジョイント110の上筒部114と、押圧ヘッド120の下筒部121aとの相互間に、ノズル100の内圧上昇に従って拡大する空間Ｒ2を形成すれば、ジョイント110の上筒部114と、押圧ヘッド120の下筒部121aとの間の摺動量に、ノズル100の内圧上昇に従って空間Ｒ2を拡大させるための予備摺動量（間隔Ｘ）が含まれる。従って、かかる構成によれば、ジョイント110と押圧ヘッド120との間の摺動によっても、ノズル100の内圧上昇が抑制されるため、液漏れの防止を更に確実なものとすることができる。 That is, as in the shut-off nozzle 100 according to the present invention, a space R 2 that expands as the internal pressure of the nozzle 100 increases is formed between the upper cylindrical portion 114 of the joint 110 and the lower cylindrical portion 121a of the pressing head 120. For example, the sliding amount between the upper cylindrical portion 114 of the joint 110 and the lower cylindrical portion 121a of the pressing head 120 includes a preliminary sliding amount (interval X) for expanding the space R 2 in accordance with the increase in the internal pressure of the nozzle 100. It is. Therefore, according to such a configuration, an increase in the internal pressure of the nozzle 100 is suppressed even by sliding between the joint 110 and the pressing head 120, so that it is possible to further prevent liquid leakage.

上述したところは、本発明の好適な形態を示したものであるが、用途に応じて様々に設計変更することができる。例えば、本発明であるシャットオフノズルは、その容器として、同形態のように、エアゾール容器を採用すれば、液漏れの防止に特に有効であるが、エアゾール容器に限らず、ピストンと、吸排弁とで構成された蓄圧ポンプを備える容器にも適用させることができる。   The above description shows the preferred embodiment of the present invention, but various design changes can be made according to the application. For example, the shut-off nozzle according to the present invention is particularly effective for preventing liquid leakage if an aerosol container is adopted as the container, as in the same form. However, the present invention is not limited to an aerosol container. The present invention can also be applied to a container including a pressure accumulating pump configured as follows.

本発明の一形態であるシャットオフノズル100の初期状態を側面から示す縦断面図である。FIG. 2 is a longitudinal sectional view showing an initial state of a shut-off nozzle 100 according to one embodiment of the present invention from the side. 同形態の注出状態を側面から示す縦断面図である。It is a longitudinal cross-sectional view which shows the extraction | pouring state of the form from the side. 同形態の注出完了後の内圧上昇状態を側面から示す縦断面図である。It is a longitudinal cross-sectional view which shows the internal pressure rise state after completion | finish of the extraction of the form from a side surface.

符号の説明Explanation of symbols

100 シャットオフノズル
110 ジョイント
111 装着筒（基部）
112 天壁
113 外装筒
114 上筒部
120 押圧ヘッド
121 ヘッド本体
121a 下筒部
121b 開口部
121c 後壁
121d 横向き通路
122 ノズル本体
130 シャットピン
131 シャットピン先端部
130 シャットピン
130c シャットピン後端括れ部
140 フランジ
141 フランジ円筒部
142 フランジ外周縁
143 フランジ内周縁
144 座部
150 コイルスプリング（弾性部材）
160 レバー
161 上端部
161a 切欠き
162 下端部
170 コイルスプリング（補助弾性部材）
Ａ 注出孔
Ｃ エアゾール容器
ｈ 空洞部
Ｐ 揺動用支承ピン
Ｒ1 ノズル本体とフランジとの間の空間（横向き通路）
Ｒ2 ジョイント上筒部と押圧ヘッド下筒部との相互間に形成された空間
Ｓ ステム 100 Shut-off nozzle
110 joints
111 Installation tube (base)
112 sky wall
113 Outer cylinder
114 Upper tube
120 pressure head
121 Head body
121a Lower cylinder
121b opening
121c rear wall
121d sideways passage
122 Nozzle body
130 Shut pin
131 Shut pin tip
130 Shut pin
130c Rear end of shut pin
140 flange
141 Flange cylindrical part
142 Flange outer periphery
143 Flange inner periphery
144 Seat
150 Coil spring (elastic member)
160 lever
161 Top
161a cutout
162 Bottom
170 Coil spring (auxiliary elastic member)
A Pouring hole C Aerosol container h Cavity P Pivoting support pin R 1 Space between nozzle body and flange (lateral passage)
Space S stem formed therebetween with R 2 joint on the cylinder portion and the pressing head under the cylindrical portion

Claims (3)

容器のステムに繋がる基部を有し当該基部から起立する上筒部がステムを通る内容物の通路となるジョイントと、
このジョイントの上筒部と摺動可能に嵌合する下筒部を有し当該下筒部に繋がる横向き通路を通ってその前方に形成した注出孔に当該上筒部を通じさせる押圧ヘッドと、
この押圧ヘッドの横向き通路に沿って摺動するフランジを有し先端が注出孔を封止可能なシャットピンと、
フランジと横向き通路の後壁との間に介在してシャットピンを前方に付勢して排出孔を封止させる弾性部材と、
押圧ヘッドの押し下げによってジョイントと接触して当該接触に伴う揺動によりシャットピンを後方に移動させて排出孔を開放するレバーとを備えるシャットオフノズルにおいて、
前記フランジをシャットピンと別体に形成し、このシャットピンに沿って摺動可能に保持すると共に、
シャットピンとフランジとの間に、フランジに加わる前記弾性部材からの付勢力を相殺し、ノズルの内圧上昇に従い、この内圧と共に弾性部材からの付勢力に抗して当該フランジを後方に移動させる補助弾性部材を介在させたことを特徴とするシャットオフノズル。 A joint having a base connected to the stem of the container, and an upper cylindrical portion rising from the base serving as a passage of contents passing through the stem;
A pressure head having a lower cylinder part slidably fitted to the upper cylinder part of the joint, and passing the upper cylinder part through an outlet hole formed in front thereof through a lateral passage connected to the lower cylinder part;
A shut pin that has a flange that slides along the lateral passage of the pressing head and whose tip can seal the dispensing hole;
An elastic member interposed between the flange and the rear wall of the sideways passage to bias the shut pin forward and seal the discharge hole;
In a shut-off nozzle comprising a lever that contacts the joint by pressing down the pressing head and moves the shut pin backward by swinging with the contact to open the discharge hole,
The flange is formed separately from the shut pin and slidably held along the shut pin,
Auxiliary elasticity that cancels the biasing force from the elastic member applied to the flange between the shut pin and the flange, and moves the flange backward against the biasing force from the elastic member together with this internal pressure as the internal pressure of the nozzle rises A shut-off nozzle characterized by interposing a member. 請求項１において、ジョイントの上筒部と、押圧ヘッドの下筒部との相互間に、ノズルの内圧上昇に従って拡大する空間を形成したことを特徴とするシャットオフノズル。   2. The shut-off nozzle according to claim 1, wherein a space that expands as the internal pressure of the nozzle increases is formed between the upper tube portion of the joint and the lower tube portion of the pressing head. 請求項１又は２において、前記容器がエアゾール容器であることを特徴とするシャットオフノズル。   The shut-off nozzle according to claim 1 or 2, wherein the container is an aerosol container.
JP2007224752A 2007-08-30 2007-08-30 Shut-off nozzle Active JP4975559B2 (en)

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