JP2021084665A - Discharger - Google Patents

Discharger Download PDF

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Publication number
JP2021084665A
JP2021084665A JP2019215647A JP2019215647A JP2021084665A JP 2021084665 A JP2021084665 A JP 2021084665A JP 2019215647 A JP2019215647 A JP 2019215647A JP 2019215647 A JP2019215647 A JP 2019215647A JP 2021084665 A JP2021084665 A JP 2021084665A
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Prior art keywords
stem
cylinder
pressing head
urging member
mounting
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Granted
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JP2019215647A
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JP7267179B2 (en
Inventor
洋一 先曽
Yoichi Sakiso
洋一 先曽
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Priority to JP2019215647A priority Critical patent/JP7267179B2/en
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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
    • 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
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position
    • 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
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1087—Combination of liquid and air pumps

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  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

To dispense with classification in disposal.SOLUTION: The discharger includes a pump 2 having a stem 10, a push-down head 3 having a fitting cylinder part 30 and a fitting cap 12. The pump includes a synthetic resin energization member 66 which surrounds the fitting cylinder part from outside in a radial direction and energizes upward the stem through the push-down head. The push-down head includes an upper support part 68 for supporting an upper end of the energization member. The push-down head regulates downward movement to the stem in a state of being positioned at a stand-by position, is linked to vertical movement of the stem, the upper end in the energization member is supported by the upper support part in a state where the push-down head is positioned at the stand-by position, the fitting cylinder part is slidably externally fit downward to the step in a state where the lower end is supported by a lower support part 70 and the push-down head is positioned at a top end position above the stand-by position, and either the upper support part and the lower support part is separated in a vertical direction from the energization member.SELECTED DRAWING: Figure 3

Description

本発明は、吐出器に関するものである。 The present invention relates to a discharger.

従来から、例えば下記特許文献１に示されるように、内容液が収容された容器体の口部に上方付勢状態で下方移動可能に立設されるステムを有するポンプと、ステムの上端部に装着された装着筒部を有するとともに、ノズル孔が形成された押下ヘッドと、ポンプを口部に装着する装着キャップと、を備え、口部に装着した状態で、押下ヘッドを押下してステムを下方に移動させポンプを作動させることにより、内容液をステム内を通してノズル孔から吐出する吐出器が知られている。
一般に、ステムを上方付勢する付勢部材は、金属材料で形成されるとともに、ポンプのシリンダ内に収容されている。 Conventionally, for example, as shown in Patent Document 1 below, a pump having a stem that is erected at the mouth of a container body containing a liquid content so as to be movable downward in an upwardly biased state, and a pump at the upper end of the stem. A push head having a mounted mounting cylinder and a nozzle hole formed therein, and a mounting cap for mounting the pump to the mouth are provided, and the push head is pushed to push the stem while mounted on the mouth. There is known a discharger that discharges the content liquid from the nozzle hole through the stem by moving it downward and operating the pump.
Generally, the urging member that urges the stem upward is made of a metal material and housed in the cylinder of the pump.

特開２０１３−２０９１５３号公報Japanese Unexamined Patent Publication No. 2013-209153

しかしながら、従来の吐出器では、廃棄に際し、付勢部材をシリンダから取り出しにくく、金属材料からなる付勢部材と、合成樹脂材料からなるその他の部材と、を分別することが困難であるという問題があった。 However, in the conventional discharger, there is a problem that it is difficult to take out the urging member from the cylinder at the time of disposal, and it is difficult to separate the urging member made of a metal material from another member made of a synthetic resin material. there were.

本発明は、このような事情を考慮してなされたもので、廃棄時の分別を不要にすることができる吐出器を提供することを目的とする。 The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a discharger capable of eliminating the need for sorting at the time of disposal.

上記課題を解決して、このような目的を達成するために、本発明の吐出器は、内容液が収容された容器体の口部に上方付勢状態で下方移動可能に立設されるステムを有するポンプと、前記ステムの上端部に装着される装着筒部を有するとともに、ノズル孔が形成された押下ヘッドと、前記ポンプを前記口部に装着する装着キャップと、を備え、前記口部に装着した状態で、前記押下ヘッドを押下して前記ステムを下方に移動させ前記ポンプを作動させることにより、前記内容液を前記ステム内を通して前記ノズル孔から吐出する吐出器であって、前記ポンプは、前記装着筒部を径方向の外側から囲い、かつ前記押下ヘッドを介して前記ステムを上方付勢する、合成樹脂製の付勢部材を備え、前記押下ヘッドは、前記付勢部材の上端部を支持する上支持部を備え、前記押下ヘッドは、待機位置に位置した状態で、前記ステムに対する下方移動が規制されて、前記ステムの上下動に連係し、前記押下ヘッドが、前記待機位置に位置した状態で、前記付勢部材のうち、上端部が前記上支持部に支持されるとともに、下端部が下支持部に支持され、前記押下ヘッドが、前記待機位置より上方の上昇端位置に位置した状態で、前記装着筒部が、前記ステムに下方に向けて摺動可能に外嵌し、かつ前記上支持部および前記下支持部のうちのいずれか一方が、前記付勢部材から上下方向に離れる。 In order to solve the above problems and achieve such an object, the discharger of the present invention has a stem that is erected at the mouth of a container containing the content liquid so as to be movable downward in an upwardly biased state. The mouth portion includes a pump having a stem, a mounting cylinder portion mounted on the upper end portion of the stem, a pressing head having a nozzle hole formed therein, and a mounting cap for mounting the pump on the mouth portion. It is a discharger that discharges the content liquid from the nozzle hole through the stem by pressing the pressing head to move the stem downward and operating the pump in the state of being mounted on the pump. Provided an urging member made of synthetic resin that surrounds the mounting cylinder portion from the outside in the radial direction and urges the stem upward via the pressing head, and the pressing head is the upper end of the urging member. The push head is provided with an upper support portion for supporting the portion, and while the push head is located in the standby position, downward movement with respect to the stem is restricted and linked to the vertical movement of the stem, and the push head is in the standby position. Among the urging members, the upper end portion is supported by the upper support portion and the lower end portion is supported by the lower support portion, and the pressing head is at the rising end position above the standby position. The mounting cylinder portion is slidably fitted downward to the stem, and one of the upper support portion and the lower support portion is from the urging member. Separate vertically.

この発明によれば、付勢部材が合成樹脂材料で形成されているので、吐出器の廃棄に際し、付勢部材と、合成樹脂材料からなる他の部材と、を分別する必要をなくすことができる。
押下ヘッドが上昇端位置に位置した状態で、上支持部および下支持部のうちのいずれか一方が、付勢部材から上下方向に離れるので、押下ヘッドを上昇端位置に位置させた状態では、付勢部材に上下方向の圧縮力が加えられることがない。したがって、押下ヘッドを上昇端位置に位置させ、付勢部材に上下方向の圧縮力を加えずに、流通および保管等を行うことによって、この期間に付勢部材に圧縮変形の癖が付くこと（塑性変形）がなく、吐出器の使用に際して、付勢部材が弾性変形しにくくなっているのを防ぐことができる。なお、付勢部材が合成樹脂材料で形成されているので、付勢部材に上下方向の圧縮力を長時間加えると、付勢部材に圧縮変形の癖が付くおそれがある。
付勢部材が、押下ヘッドの装着筒部を径方向の外側から囲っており、流通時等の未使用状態で、内容液が付勢部材に非接触となっているので、付勢部材が合成樹脂材料で形成されていても、付勢部材に、例えば内容液が染み込んで膨潤等が生ずるのを防ぐことができる。 According to the present invention, since the urging member is made of a synthetic resin material, it is possible to eliminate the need to separate the urging member from another member made of the synthetic resin material when disposing of the discharger. ..
When the pressing head is located at the rising end position, either the upper support portion or the lower supporting portion is separated from the urging member in the vertical direction. Therefore, when the pressing head is positioned at the rising end position, the pressing head is located at the rising end position. No vertical compressive force is applied to the urging member. Therefore, by positioning the pressing head at the ascending end position and performing distribution and storage without applying a compressive force in the vertical direction to the urging member, the urging member becomes habitually deformed by compression during this period ( There is no plastic deformation), and it is possible to prevent the urging member from becoming difficult to elastically deform when the discharger is used. Since the urging member is made of a synthetic resin material, if a compressive force in the vertical direction is applied to the urging member for a long time, the urging member may have a habit of compressive deformation.
Since the urging member surrounds the mounting cylinder of the pressing head from the outside in the radial direction and the content liquid is not in contact with the urging member in an unused state such as during distribution, the urging member is synthesized. Even if it is made of a resin material, it is possible to prevent, for example, the content liquid from seeping into the urging member and causing swelling or the like.

前記下支持部は、前記装着キャップの天壁部の上面の一部となっていてもよい。 The lower support portion may be a part of the upper surface of the top wall portion of the mounting cap.

この場合、下支持部が、装着キャップの天壁部の上面の一部となっているので、下支持部を容易に形成することができる。 In this case, since the lower support portion is a part of the upper surface of the top wall portion of the mounting cap, the lower support portion can be easily formed.

前記装着キャップに、前記上昇端位置に位置する前記押下ヘッドの下方移動を規制するストッパ部材が離脱可能に設けられてもよい。 The mounting cap may be provided with a stopper member that restricts the downward movement of the pressing head located at the rising end position so as to be detachable.

この場合、装着キャップに、上昇端位置に位置する押下ヘッドの下方移動を規制するストッパ部材が離脱可能に設けられているので、押下ヘッドが上昇端位置に位置した状態を確実に維持することが可能になり、流通および保管等の過程で、不意に押下ヘッドが待機位置に移動し、付勢部材に上下方向の圧縮力が加えられるのを確実に防ぐことができる。 In this case, since the mounting cap is provided with a stopper member that regulates the downward movement of the pressing head located at the rising end position so as to be detachable, the pressing head can be reliably maintained at the rising end position. This makes it possible to reliably prevent the pressing head from suddenly moving to the standby position in the process of distribution, storage, etc., and applying a compressive force in the vertical direction to the urging member.

本発明によれば、廃棄時の分別を不要にすることができる。 According to the present invention, it is possible to eliminate the need for sorting at the time of disposal.

本発明に係る一実施形態として示した吐出器であって、押下ヘッドが待機位置に位置した状態を示す縦断面図である。FIG. 5 is a vertical cross-sectional view showing a state in which the pressing head is located at a standby position in the discharger shown as an embodiment according to the present invention. 図１の要部を示す拡大図である。It is an enlarged view which shows the main part of FIG. 本発明に係る一実施形態として示した吐出器であって、押下ヘッドが上昇端位置に位置した状態を示す要部の拡大縦断面図である。FIG. 5 is an enlarged vertical cross-sectional view of a main part of the discharger shown as an embodiment of the present invention, showing a state in which the pressing head is located at the rising end position.

以下、本発明に係る吐出器の実施形態について図面を参照して説明する。
図１に示すように、本実施形態の吐出器１は、ステム１０を有するポンプ２と、ステム１０に装着された押下ヘッド３と、ポンプ２を内容液が収容された容器体Ａの口部Ａ１に装着する装着キャップ１２と、を備えている。
吐出器１を構成する全ての部品は、合成樹脂材料により形成されている。 Hereinafter, embodiments of the discharger according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the discharger 1 of the present embodiment includes a pump 2 having a stem 10, a pressing head 3 mounted on the stem 10, and a mouth portion of a container body A in which the pump 2 contains a liquid content. It includes a mounting cap 12 to be mounted on A1.
All the parts constituting the discharger 1 are made of a synthetic resin material.

容器体Ａにおける横断面の中央を通る中心線を容器軸Ｏといい、容器軸Ｏに沿って押下ヘッド３側を上側、装着キャップ１２側を下側という。また、容器軸Ｏに沿う方向を上下方向といい、上下方向から見て、容器軸Ｏに交差する方向を径方向、容器軸Ｏ回りに周回する方向を周方向という。
以下、特に断らない限り、押下ヘッド３が待機位置に位置している状態を説明する。押下ヘッド３が待機位置に位置している場合、押下ヘッド３を押し下げると、押下ヘッド３がステム１０に対して下方移動することはなく、押下ヘッド３に追従して直ぐにステム１０が下方移動する。 The center line passing through the center of the cross section of the container body A is referred to as the container shaft O, the pressing head 3 side is referred to as the upper side, and the mounting cap 12 side is referred to as the lower side along the container shaft O. Further, the direction along the container axis O is referred to as a vertical direction, the direction intersecting the container axis O when viewed from the vertical direction is referred to as a radial direction, and the direction rotating around the container axis O is referred to as a circumferential direction.
Hereinafter, unless otherwise specified, the state in which the pressing head 3 is located in the standby position will be described. When the pressing head 3 is located in the standby position, when the pressing head 3 is pushed down, the pressing head 3 does not move downward with respect to the stem 10, but the stem 10 immediately moves downward following the pressing head 3. ..

容器体Ａは、有底筒状に形成され、口部Ａ１の外周面に雄ねじ部が形成されている。
装着キャップ１２は、天壁部２０および装着周壁部２１を有する有頂筒状に形成され、容器軸Ｏと同軸に配設されている。
天壁部２０は環状に形成され、天壁部２０の内側に、ステム１０が上下動自在に挿入されている。天壁部２０の上面に、上方に向けて突出したガイド筒部２２が形成されている。ガイド筒部２２は、容器軸Ｏと同軸に配設されている。ガイド筒部２２の内径は、天壁部２０の内径より大きくなっている。ガイド筒部２２に、径方向の外側に向けて突出し、周方向の全長にわたって連続して延びる第１突出部２２ａが設けられている。第１突出部２２ａは、ガイド筒部２２の上端部に設けられている。第１突出部２２ａは、ガイド筒部２２と一体に形成されている。なお、第１突出部２２ａは、ガイド筒部２２と別体であってもよい。
装着周壁部２１の内周面に、口部Ａ１の雄ねじ部に螺合した雌ねじ部が形成されている。なお、装着周壁部２１は、口部Ａ１に、例えばアンダーカット嵌合等されてもよい。 The container body A is formed in a bottomed tubular shape, and a male screw portion is formed on the outer peripheral surface of the mouth portion A1.
The mounting cap 12 is formed in an eclipsed tubular shape having a top wall portion 20 and a mounting peripheral wall portion 21, and is arranged coaxially with the container shaft O.
The top wall portion 20 is formed in an annular shape, and the stem 10 is inserted inside the top wall portion 20 so as to be vertically movable. A guide cylinder portion 22 projecting upward is formed on the upper surface of the top wall portion 20. The guide cylinder portion 22 is arranged coaxially with the container shaft O. The inner diameter of the guide cylinder portion 22 is larger than the inner diameter of the top wall portion 20. The guide cylinder portion 22 is provided with a first protruding portion 22a that projects outward in the radial direction and continuously extends over the entire length in the circumferential direction. The first protruding portion 22a is provided at the upper end portion of the guide cylinder portion 22. The first protruding portion 22a is formed integrally with the guide cylinder portion 22. The first protruding portion 22a may be separate from the guide cylinder portion 22.
On the inner peripheral surface of the mounting peripheral wall portion 21, a female screw portion screwed into the male screw portion of the mouth portion A1 is formed. The mounting peripheral wall portion 21 may be fitted to the mouth portion A1 by, for example, undercut.

ポンプ２は、ステム１０、空気用ピストン１３、空気用シリンダ１４、液用ピストン１５、液用シリンダ１６、気液混合室Ｒ１、発泡部材１７、および付勢部材６６を備えている。 The pump 2 includes a stem 10, an air piston 13, an air cylinder 14, a liquid piston 15, a liquid cylinder 16, a gas-liquid mixing chamber R1, a foaming member 17, and an urging member 66.

空気用シリンダ１４は、有底筒状に形成され、その底面に筒状の液用シリンダ１６が空気用シリンダ１４の内部と連通した状態で連結されている。空気用シリンダ１４および液用シリンダ１６は、容器軸Ｏと同軸に配設されている。空気用シリンダ１４の直径は、液用シリンダ１６の直径より大きくなっている。空気用シリンダ１４および液用シリンダ１６は一体に形成されている。空気用シリンダ１４と液用シリンダ１６とをそれぞれ別体に構成したうえで、例えば、両者を係止する等して連結してもよい。 The air cylinder 14 is formed in a bottomed tubular shape, and a tubular liquid cylinder 16 is connected to the bottom surface of the air cylinder 14 in a state of communicating with the inside of the air cylinder 14. The air cylinder 14 and the liquid cylinder 16 are arranged coaxially with the container shaft O. The diameter of the air cylinder 14 is larger than the diameter of the liquid cylinder 16. The air cylinder 14 and the liquid cylinder 16 are integrally formed. The air cylinder 14 and the liquid cylinder 16 may be configured as separate bodies, and then, for example, both may be locked and connected.

空気用シリンダ１４の上端部は、装着周壁部２１および天壁部２０の各内面に密接している。空気用シリンダ１４および液用シリンダ１６は、装着キャップ１２から下方に突出した状態で、容器体Ａの内部に収容される。
空気用シリンダ１４の内部に、ステム１０に連係した空気用ピストン１３が上下摺動自在に収容され、液用シリンダ１６の内部に、ステム１０に連係した液用ピストン１５が上下摺動自在に収容されている。 The upper end portion of the air cylinder 14 is in close contact with each inner surface of the mounting peripheral wall portion 21 and the top wall portion 20. The air cylinder 14 and the liquid cylinder 16 are housed inside the container body A in a state of protruding downward from the mounting cap 12.
The air piston 13 linked to the stem 10 is slidably housed inside the air cylinder 14, and the liquid piston 15 linked to the stem 10 is slidably housed inside the liquid cylinder 16. Has been done.

押下ヘッド３は、頂壁部３３および外筒部３１を有する有頂筒状に形成されている。押下ヘッド３は、容器軸Ｏと同軸に配設されている。頂壁部３３に、下方に向けて突出し、内側にステム１０の上端部が嵌合された装着筒部３０が形成されている。装着筒部３０は、容器軸Ｏと同軸に配設されている。外筒部３１は、装着筒部３０を径方向の外側から囲っている。装着筒部３０の下端部は、外筒部３１の下端部より下方に位置している。押下ヘッド３は、装着筒部３０から径方向の外側に向けて延び、外筒部３１を径方向に貫くノズル筒部３２を備えている。ノズル筒部３２の先端に、径方向に開口するノズル孔３２ａが形成されている。ノズル筒部３２の内部は、装着筒部３０の内部に連通している。 The pressing head 3 is formed in the shape of an eclipsed cylinder having a top wall portion 33 and an outer cylinder portion 31. The pressing head 3 is arranged coaxially with the container shaft O. A mounting cylinder portion 30 is formed on the top wall portion 33 so as to project downward and in which the upper end portion of the stem 10 is fitted. The mounting cylinder portion 30 is arranged coaxially with the container shaft O. The outer cylinder portion 31 surrounds the mounting cylinder portion 30 from the outside in the radial direction. The lower end of the mounting cylinder 30 is located below the lower end of the outer cylinder 31. The pressing head 3 includes a nozzle cylinder portion 32 that extends outward in the radial direction from the mounting cylinder portion 30 and penetrates the outer cylinder portion 31 in the radial direction. A nozzle hole 32a that opens in the radial direction is formed at the tip of the nozzle cylinder portion 32. The inside of the nozzle cylinder portion 32 communicates with the inside of the mounting cylinder portion 30.

装着筒部３０は、装着キャップ１２におけるガイド筒部２２の内側に上下動自在に挿入されている。装着筒部３０の下端部は、装着キャップ１２の天壁部２０の内側に、上下動自在に挿入されている。外筒部３１の内径は、ガイド筒部２２の外径よりも大きく、押下ヘッド３を押し下げたときに、外筒部３１の内周面とガイド筒部２２の外周面とが径方向で対向する。 The mounting cylinder portion 30 is inserted vertically and vertically inside the guide cylinder portion 22 of the mounting cap 12. The lower end portion of the mounting cylinder portion 30 is inserted into the top wall portion 20 of the mounting cap 12 so as to be vertically movable. The inner diameter of the outer cylinder portion 31 is larger than the outer diameter of the guide cylinder portion 22, and when the pressing head 3 is pushed down, the inner peripheral surface of the outer cylinder portion 31 and the outer peripheral surface of the guide cylinder portion 22 face each other in the radial direction. To do.

外筒部３１に、径方向の内側に向けて突出し、周方向の全長にわたって連続して延びる第２突出部３１ａが設けられている。第２突出部３１ａは、外筒部３１の下端部に設けられている。第２突出部３１ａは、外筒部３１内に嵌合されたリング体３４の内周面に形成されている。リング体３４は、外筒部３１の下端部内に嵌合され、リング体３４の下端部は、外筒部３１の下端開口部から下方に突出している。第２突出部３１ａ、および外筒部３１の下端開口縁それぞれの上下方向の位置は、互いに同等になっている。なお、第２突出部３１ａは、外筒部３１と一体に形成されてもよい。第２突出部３１ａは、ガイド筒部２２に設けられた第１突出部２２ａに当接している。これにより、水が、外部から外筒部３１の内周面とガイド筒部２２の外周面との間を通過することが抑制されている。 The outer cylinder portion 31 is provided with a second protruding portion 31a that projects inward in the radial direction and continuously extends over the entire length in the circumferential direction. The second protruding portion 31a is provided at the lower end portion of the outer cylinder portion 31. The second protruding portion 31a is formed on the inner peripheral surface of the ring body 34 fitted in the outer cylinder portion 31. The ring body 34 is fitted in the lower end portion of the outer cylinder portion 31, and the lower end portion of the ring body 34 projects downward from the lower end opening of the outer cylinder portion 31. The positions of the second protruding portion 31a and the lower end opening edge of the outer cylinder portion 31 in the vertical direction are equal to each other. The second protruding portion 31a may be formed integrally with the outer cylinder portion 31. The second protruding portion 31a is in contact with the first protruding portion 22a provided on the guide cylinder portion 22. As a result, water is prevented from passing between the inner peripheral surface of the outer cylinder portion 31 and the outer peripheral surface of the guide cylinder portion 22 from the outside.

付勢部材６６は、合成樹脂材料により筒状に形成されている。付勢部材６６は、容器軸Ｏと同軸に配設されている。付勢部材６６は、装着筒部３０を径方向の外側から囲っている。付勢部材６６は、ガイド筒部２２より径方向の内側に設けられている。付勢部材６６の内周面に、径方向の内側に向けて突出し、周方向に延びる突条部６６ａが形成されている。突条部６６ａは、装着筒部３０の外周面に当接、若しくは近接している。ステム１０の上下動に伴う、付勢部材６６の上下方向の変形時に、突条部６６ａを、装着筒部３０の外周面に当接させることにより、付勢部材６６が径方向に変形することが規制される。 The urging member 66 is formed in a tubular shape by using a synthetic resin material. The urging member 66 is arranged coaxially with the container shaft O. The urging member 66 surrounds the mounting cylinder portion 30 from the outside in the radial direction. The urging member 66 is provided inside the guide cylinder portion 22 in the radial direction. A ridge portion 66a that projects inward in the radial direction and extends in the circumferential direction is formed on the inner peripheral surface of the urging member 66. The ridge portion 66a is in contact with or close to the outer peripheral surface of the mounting cylinder portion 30. When the urging member 66 is deformed in the vertical direction due to the vertical movement of the stem 10, the urging member 66 is deformed in the radial direction by bringing the ridge portion 66a into contact with the outer peripheral surface of the mounting cylinder portion 30. Is regulated.

付勢部材６６の上端部を支持する上支持部６８は、押下ヘッド３に備えられている。付勢部材６６は、押下ヘッド３を介してステム１０を上方付勢している。上支持部６８は、押下ヘッド３の頂壁部３３の下面に設けられている。上支持部６８は、頂壁部３３の下面から下方に向けて突出し、かつ表裏面が周方向を向く板状に形成され、周方向に間隔をあけて複数設けられている。付勢部材６６の上端部は、押下ヘッド３の頂壁部３３の下面から下方に向けて延びる上装着筒６９の内側に嵌合されている。付勢部材６６の上端部は、上装着筒６９の内側にアンダーカット嵌合されている。上装着筒６９は、装着筒部３０の上端部を径方向の外側から囲っている。上装着筒６９の下端部は、上支持部６８の下端部より下方に位置し、外筒部３１の下端部より上方に位置している。上支持部６８は、上装着筒６９の内周面と装着筒部３０の外周面とを連結している。 An upper support portion 68 that supports the upper end portion of the urging member 66 is provided on the pressing head 3. The urging member 66 urges the stem 10 upward via the pressing head 3. The upper support portion 68 is provided on the lower surface of the top wall portion 33 of the pressing head 3. The upper support portions 68 project downward from the lower surface of the top wall portion 33, and the front and back surfaces are formed in a plate shape facing the circumferential direction, and a plurality of upper support portions 68 are provided at intervals in the circumferential direction. The upper end portion of the urging member 66 is fitted inside the upper mounting cylinder 69 extending downward from the lower surface of the top wall portion 33 of the pressing head 3. The upper end portion of the urging member 66 is undercut fitted inside the upper mounting cylinder 69. The upper mounting cylinder 69 surrounds the upper end portion of the mounting cylinder portion 30 from the outside in the radial direction. The lower end of the upper mounting cylinder 69 is located below the lower end of the upper support portion 68, and is located above the lower end of the outer cylinder 31. The upper support portion 68 connects the inner peripheral surface of the upper mounting cylinder 69 and the outer peripheral surface of the mounting cylinder portion 30.

付勢部材６６の下端部を支持する下支持部７０は、装着キャップ１２の天壁部２０の上面の一部となっている。下支持部７０は、天壁部２０の上面における開口周縁部となっている。付勢部材６６の下端部は、天壁部２０の上面から上方に向けて延びる下装着筒７１の内側に嵌合されている。付勢部材６６の下端部は、下装着筒７１の内側にアンダーカット嵌合されている。下装着筒７１は、ガイド筒部２２より径方向の内側に位置している。下装着筒７１の上端部は、ガイド筒部２２の上端部より下方に位置している。
下支持部７０は、例えば、装着周壁部２１、ガイド筒部２２、若しくはポンプ２等に設けてもよい。上装着筒６９および下装着筒７１のうちのいずれか一方のみを設けてもよい。 The lower support portion 70 that supports the lower end portion of the urging member 66 is a part of the upper surface of the top wall portion 20 of the mounting cap 12. The lower support portion 70 is an opening peripheral edge portion on the upper surface of the top wall portion 20. The lower end portion of the urging member 66 is fitted inside the lower mounting cylinder 71 extending upward from the upper surface of the top wall portion 20. The lower end of the urging member 66 is undercut fitted inside the lower mounting cylinder 71. The lower mounting cylinder 71 is located inside the guide cylinder portion 22 in the radial direction. The upper end of the lower mounting cylinder 71 is located below the upper end of the guide cylinder 22.
The lower support portion 70 may be provided on, for example, the mounting peripheral wall portion 21, the guide cylinder portion 22, the pump 2, or the like. Only one of the upper mounting cylinder 69 and the lower mounting cylinder 71 may be provided.

発泡部材１７は、気液混合室Ｒ１で混合された気液混合体を発泡させて所定の泡状にする。発泡部材１７は、押下ヘッド３の装着筒部３０内における上下方向の略中央領域に配設されており、気液混合室Ｒ１とノズル孔３２ａとの間に位置している。
発泡部材１７は、図２に示されるように、筒状のケーシング４０と、ケーシング４０の内側に装着された２つの発泡エレメント４１と、を備えている。 The foaming member 17 foams the gas-liquid mixture mixed in the gas-liquid mixing chamber R1 to form a predetermined foam. The foaming member 17 is arranged in a substantially central region in the vertical direction in the mounting cylinder portion 30 of the pressing head 3, and is located between the gas-liquid mixing chamber R1 and the nozzle hole 32a.
As shown in FIG. 2, the foaming member 17 includes a tubular casing 40 and two foaming elements 41 mounted inside the casing 40.

ケーシング４０は、装着筒部３０の内側に嵌合されて固定されている。ケーシング４０は、上側が大径部４０ａ、下側が小径部４０ｂとされた２段円筒状に形成されている。大径部４０ａは装着筒部３０の内側に嵌合され、小径部４０ｂはステム１０の上端部の内側に嵌合されている。小径部４０ｂの外周面には、その下端から上方に延びて大径部４０ａの底部外表面に至り、さらにその径方向の外側に向けて延在して開口したケーシング溝４２が、周方向に間隔をあけて複数形成されている。 The casing 40 is fitted and fixed to the inside of the mounting cylinder portion 30. The casing 40 is formed in a two-stage cylindrical shape with a large diameter portion 40a on the upper side and a small diameter portion 40b on the lower side. The large diameter portion 40a is fitted inside the mounting cylinder portion 30, and the small diameter portion 40b is fitted inside the upper end portion of the stem 10. On the outer peripheral surface of the small diameter portion 40b, a casing groove 42 extending upward from the lower end thereof to reach the outer surface of the bottom portion of the large diameter portion 40a and further extending outward in the radial direction and opening is provided in the circumferential direction. Multiple pieces are formed at intervals.

２つの発泡エレメント４１は、上下方向に連ねられた状態で、大径部４０ａの内側に嵌合されている。発泡エレメント４１は、上下方向に延びる筒状体４１ａと、筒状体４１ａにおける上下方向の端部に設けられたメッシュ部材４１ｂと、を備えている。２つの発泡エレメント４１のうち、上側に位置する発泡エレメント４１は、メッシュ部材４１ｂが上端に位置する向きに設けられ、下側に位置する発泡エレメント４１は、メッシュ部材４１ｂが下端に位置する向きに設けられている。 The two foam elements 41 are fitted inside the large diameter portion 40a in a state of being connected in the vertical direction. The foam element 41 includes a tubular body 41a extending in the vertical direction and a mesh member 41b provided at an end portion of the tubular body 41a in the vertical direction. Of the two foam elements 41, the foam element 41 located on the upper side is provided in the direction in which the mesh member 41b is located at the upper end, and the foam element 41 located on the lower side is provided in the direction in which the mesh member 41b is located at the lower end. It is provided.

空気用ピストン１３は、外筒５０、内筒５１、天板部５３、およびピストン用弁体５４を備え、空気用シリンダ１４の内側に気密状態で上下摺動可能に嵌合されている。 The air piston 13 includes an outer cylinder 50, an inner cylinder 51, a top plate portion 53, and a piston valve body 54, and is fitted inside the air cylinder 14 in an airtight state so as to be slidable up and down.

外筒５０は、下方に位置するほど直径が大きい多段筒状に形成され、容器軸Ｏと同軸に配設されている。外筒５０の下端部に、空気用シリンダ１４の内側に気密状態で上下摺動可能に嵌合された筒状の摺接部５０ａが形成されている。
内筒５１は、外筒５０の内側に配置されている。内筒５１の内側に、ステム１０のうち、装着筒部３０の内側に嵌合している上端部に対して下方から連なる部分が、上下摺動可能に挿入されている。内筒５１の上端部は、装着筒部３０の下端部の内側に上下摺動可能に嵌合されている。内筒５１の上端開口縁と、装着筒部３０の内面と、の間に、上下方向の隙間Ｓが設けられている。
天板部５３は、外筒５０と内筒５１とを連結している。天板部５３は、外筒５０の上端部と、内筒５１の上下方向の中間部と、を連結している。天板部５３に、上下方向に貫通する空気孔５２が形成されている。天板部５３の上面は、装着筒部３０の下端開口縁から下方に離れている。
ピストン用弁体５４は、外嵌筒および弁板を備え、空気孔５２を開放可能に閉塞している。外嵌筒は、内筒５１のうち、天板部５３との接続部より下方に位置する部分に外嵌されている。弁板は、外嵌筒から径方向の外側に向けて突出し、外筒５０の内面に離反可能に当接している。 The outer cylinder 50 is formed in a multi-stage tubular shape having a larger diameter toward the lower side, and is arranged coaxially with the container shaft O. At the lower end of the outer cylinder 50, a tubular sliding contact portion 50a is formed inside the air cylinder 14 so as to be slidably fitted up and down in an airtight state.
The inner cylinder 51 is arranged inside the outer cylinder 50. Inside the inner cylinder 51, a portion of the stem 10 that is connected from below with respect to the upper end portion fitted to the inside of the mounting cylinder portion 30 is inserted so as to be slidable up and down. The upper end portion of the inner cylinder 51 is vertically slidably fitted inside the lower end portion of the mounting cylinder portion 30. A vertical gap S is provided between the upper end opening edge of the inner cylinder 51 and the inner surface of the mounting cylinder portion 30.
The top plate portion 53 connects the outer cylinder 50 and the inner cylinder 51. The top plate portion 53 connects the upper end portion of the outer cylinder 50 and the vertical intermediate portion of the inner cylinder 51. An air hole 52 penetrating in the vertical direction is formed in the top plate portion 53. The upper surface of the top plate portion 53 is separated downward from the lower end opening edge of the mounting cylinder portion 30.
The valve body 54 for a piston includes an outer fitting cylinder and a valve plate, and closes the air hole 52 so as to be openable. The outer fitting cylinder is outerly fitted to a portion of the inner cylinder 51 located below the connection portion with the top plate portion 53. The valve plate protrudes outward in the radial direction from the outer fitting cylinder, and is in contact with the inner surface of the outer cylinder 50 so as to be detachable.

ステム１０は、口部Ａ１に上方付勢状態で下方移動可能に立設されている。ステム１０の上端部は、装着筒部３０の内側のうち、下端部に上方から連なる部分に嵌合されている。
ステム１０の上端開口縁は、ケーシング４０の外表面における大径部４０ａと小径部４０ｂとの接続部分に当接し、ステム１０の上端部の内側に、小径部４０ｂが嵌合されている。これにより、押下ヘッド３は、待機位置に位置した状態で、ステム１０に対する下方移動が規制されて、ステム１０の上下動に連係する。
装着筒部３０の内周面のうち、ステム１０の上端部が嵌合された部分には、上下方向に延び、かつ下方に開口した縦溝３０ａが、周方向に間隔をあけて複数形成されている。縦溝３０ａは、ステム１０の上端開口縁を径方向に跨いで、発泡部材１７のケーシング溝４２と上記隙間Ｓとを連通している。 The stem 10 is erected on the mouth portion A1 so as to be movable downward in an upwardly urged state. The upper end portion of the stem 10 is fitted to a portion of the inside of the mounting cylinder portion 30 that is connected to the lower end portion from above.
The upper end opening edge of the stem 10 abuts on the connecting portion between the large diameter portion 40a and the small diameter portion 40b on the outer surface of the casing 40, and the small diameter portion 40b is fitted inside the upper end portion of the stem 10. As a result, the pressing head 3 is restricted from moving downward with respect to the stem 10 while being positioned at the standby position, and is linked to the vertical movement of the stem 10.
On the inner peripheral surface of the mounting cylinder portion 30, a plurality of vertical grooves 30a extending in the vertical direction and opening downward are formed at intervals in the circumferential direction on the portion where the upper end portion of the stem 10 is fitted. ing. The vertical groove 30a straddles the upper end opening edge of the stem 10 in the radial direction and communicates the casing groove 42 of the foaming member 17 with the gap S.

ステム１０の内周面において、液用ピストン１５と発泡部材１７との間に位置する部分に、径方向の内側に向けて突出した環状の弁座６０が形成されている。ステム１０の内部に、弁座６０に対して着座および離反する球状の液吐出弁６１が設けられている。
ステム１０の内部において、発泡部材１７におけるケーシング４０の小径部４０ｂと、弁座６０の上面と、の間に位置する空間が、空気用シリンダ１４からの空気と液用シリンダ１６からの内容液とが合流する気液混合室Ｒ１とされている。液吐出弁６１は、気液混合室Ｒ１に設けられている。 On the inner peripheral surface of the stem 10, an annular valve seat 60 projecting inward in the radial direction is formed at a portion located between the liquid piston 15 and the foaming member 17. Inside the stem 10, a spherical liquid discharge valve 61 that seats and separates from the valve seat 60 is provided.
Inside the stem 10, the space located between the small diameter portion 40b of the casing 40 of the foaming member 17 and the upper surface of the valve seat 60 is the air from the air cylinder 14 and the content liquid from the liquid cylinder 16. It is said that the gas-liquid mixing chamber R1 where the two are merged. The liquid discharge valve 61 is provided in the gas-liquid mixing chamber R1.

ステム１０の外周面において、空気用ピストン１３の内筒５１が設けられた部分に、上下方向に延び、かつ上記隙間Ｓに連通するステム溝１０ａが、周方向に間隔をあけて複数形成されている。
ステム溝１０ａと、前記隙間Ｓと、装着筒部３０の縦溝３０ａと、発泡部材１７のケーシング溝４２と、によって、空気用シリンダ１４の内部と気液混合室Ｒ１とを連通する空気通路５が構成されている。
ステム１０の外周面のうち、複数のステム溝１０ａにステム溝１０ａの下方から連なる部分に、径方向の外側に向けて張り出して、空気用ピストン１３の内筒５１の下端部に当接するフランジ状の当接部６２が形成されている。 On the outer peripheral surface of the stem 10, a plurality of stem grooves 10a extending in the vertical direction and communicating with the gap S are formed at a portion provided with the inner cylinder 51 of the air piston 13 at intervals in the circumferential direction. There is.
An air passage 5 that communicates the inside of the air cylinder 14 with the gas-liquid mixing chamber R1 by the stem groove 10a, the gap S, the vertical groove 30a of the mounting cylinder portion 30, and the casing groove 42 of the foaming member 17. Is configured.
A flange shape that projects outward in the radial direction to a portion of the outer peripheral surface of the stem 10 that is connected to the plurality of stem grooves 10a from below the stem grooves 10a and abuts on the lower end of the inner cylinder 51 of the air piston 13. The contact portion 62 is formed.

液用ピストン１５は、下端部を除く全体がステム１０の内側に嵌合されている。液用ピストン１５の下端部は、ステム１０の下端開口部から下方に突出し、液用シリンダ１６の上端部の内側に上下摺動可能に嵌合されている。液用ピストン１５は、筒状に形成されている。
液用ピストン１５および液用シリンダ１６の各内部に、上下方向に延びる棒状の弁部材６５が一体に設けられている。弁部材６５の上端部は、中空逆円錐状に形成された上部弁体６５ａとされ、上部弁体６５ａに、液用ピストン１５の上端部が下方に向けて離間可能に外嵌されている。これにより、ステム１０の上部内と液用シリンダ１６内との連通およびその遮断が切替可能となっている。弁部材６５の下端部は、図１に示されるように、液用シリンダ１６内の下端開口部に対して着座および離反する下部弁体６５ｂとなっている。
ここで、液用シリンダ１６の内側に、下部弁体６５ｂを下部弁体６５ｂの上方から支持する支持筒６７が嵌合されている。支持筒６７は、弁部材６５がこれ以上、上方に移動することを規制している。 The entire liquid piston 15 except the lower end is fitted inside the stem 10. The lower end of the liquid piston 15 projects downward from the lower end opening of the stem 10 and is slidably fitted inside the upper end of the liquid cylinder 16. The liquid piston 15 is formed in a tubular shape.
A rod-shaped valve member 65 extending in the vertical direction is integrally provided inside each of the liquid piston 15 and the liquid cylinder 16. The upper end portion of the valve member 65 is an upper valve body 65a formed in a hollow inverted cone shape, and the upper end portion of the liquid piston 15 is fitted onto the upper valve body 65a so as to be separable downward. As a result, the communication between the upper part of the stem 10 and the inside of the liquid cylinder 16 and the interruption thereof can be switched. As shown in FIG. 1, the lower end portion of the valve member 65 is a lower valve body 65b that seats and separates from the lower end opening in the liquid cylinder 16.
Here, a support cylinder 67 that supports the lower valve body 65b from above the lower valve body 65b is fitted inside the liquid cylinder 16. The support cylinder 67 regulates the valve member 65 from moving further upward.

そして、本実施形態では、押下ヘッド３が、図３に示されるように、前記待機位置より上方の上昇端位置に位置した状態で、装着筒部３０が、ステム１０に下方に向けて摺動可能に外嵌し、かつ上支持部６８および下支持部７０のうちのいずれか一方が、付勢部材６６から上下方向に離れる。 Then, in the present embodiment, as shown in FIG. 3, the mounting cylinder portion 30 slides downward on the stem 10 in a state where the pressing head 3 is located at the rising end position above the standby position. The outer fitting is possible, and one of the upper support portion 68 and the lower support portion 70 is separated from the urging member 66 in the vertical direction.

図示の例では、押下ヘッド３が上昇端位置に位置した状態で、ケーシング４０の外表面における大径部４０ａと小径部４０ｂとの接続部分が、ステム１０の上端開口縁から上方に離れる。この際、小径部４０ｂの外周面が、ステム１０の上端部の内周面から離れる。また、装着筒部３０の内面が、空気用ピストン１３の内筒５１の上端部から離れる。また、付勢部材６６の下端部は、下支持部７０に支持され、かつ下装着筒７１に外嵌されたままの状態で、付勢部材６６の上端部は、上支持部６８および上装着筒６９から下方に離れる。また、押下ヘッド３に設けられた第２突出部３１ａは、ガイド筒部２２に設けられた第１突出部２２ａに当接したままの状態に保たれる。この際、第２突出部３１ａ内に、第１突出部２２ａが嵌合されており、押下ヘッド３が待機位置に位置した状態より、第２突出部３１ａと第１突出部２２ａとは緊密に当接する。
なお、押下ヘッド３が上昇端位置に位置した状態で、付勢部材６６の上端部が、上装着筒６９に外嵌されたまま、付勢部材６６の下端部が、下支持部７０および下装着筒７１から上方に離れてもよい。 In the illustrated example, the connecting portion between the large diameter portion 40a and the small diameter portion 40b on the outer surface of the casing 40 is separated upward from the upper end opening edge of the stem 10 in a state where the pressing head 3 is located at the rising end position. At this time, the outer peripheral surface of the small diameter portion 40b is separated from the inner peripheral surface of the upper end portion of the stem 10. Further, the inner surface of the mounting cylinder portion 30 is separated from the upper end portion of the inner cylinder 51 of the air piston 13. Further, the lower end portion of the urging member 66 is supported by the lower support portion 70, and the upper end portion of the urging member 66 is mounted on the upper support portion 68 and the upper mounting portion while being fitted to the lower mounting cylinder 71. Move downward from the cylinder 69. Further, the second protruding portion 31a provided on the pressing head 3 is kept in contact with the first protruding portion 22a provided on the guide cylinder portion 22. At this time, the first protruding portion 22a is fitted in the second protruding portion 31a, and the second protruding portion 31a and the first protruding portion 22a are closer to each other than in the state where the pressing head 3 is located at the standby position. Contact.
In the state where the pressing head 3 is located at the raised end position, the upper end portion of the urging member 66 is fitted on the upper mounting cylinder 69, and the lower end portion of the urging member 66 is the lower support portion 70 and the lower portion. It may be separated upward from the mounting cylinder 71.

装着キャップ１２の天壁部２０に、上昇端位置に位置する押下ヘッド３の下方移動を規制するストッパ部材４が離脱可能に設けられている。ストッパ部材４は、天壁部２０の上面と、押下ヘッド３のリング体３４の下端開口縁と、により上下方向に挟まれている。ストッパ部材４は、周方向の一部が上下方向の全長にわたって欠けた筒状に形成され、上下方向から見てＣ字状を呈する。ストッパ部材４の内側に、装着キャップ１２のガイド筒部２２が着脱可能に嵌合されている。 A stopper member 4 for restricting the downward movement of the pressing head 3 located at the rising end position is provided on the top wall portion 20 of the mounting cap 12 so as to be detachable. The stopper member 4 is sandwiched in the vertical direction by the upper surface of the top wall portion 20 and the lower end opening edge of the ring body 34 of the pressing head 3. The stopper member 4 is formed in a tubular shape in which a part in the circumferential direction is chipped over the entire length in the vertical direction, and has a C shape when viewed from the vertical direction. The guide cylinder portion 22 of the mounting cap 12 is detachably fitted inside the stopper member 4.

次に、上述したように構成された吐出器１を使用する方法について説明する。 Next, a method of using the discharger 1 configured as described above will be described.

まず、ストッパ部材４を、装着キャップ１２の天壁部２０から離脱して、上昇端位置に位置する押下ヘッド３を押し下げ、装着筒部３０を発泡部材１７とともにステム１０に対して下方移動させ、図１および図２に示されるように、ステム１０の上端部の内側に、ケーシング４０の小径部４０ｂを嵌合し、かつステム１０の上端開口縁を、ケーシング４０の外表面における大径部４０ａと小径部４０ｂとの接続部分に突当てる。これにより、押下ヘッド３は、ステム１０に対する下方移動が規制されて、ステム１０の上下動に連係可能となる。この際、付勢部材６６の上端部が、上支持部６８に支持され、かつ上装着筒６９に外嵌される。また、空気用ピストン１３の内筒５１の上端部が、装着筒部３０の下端部の内側に嵌合される。
以上より、押下ヘッド３が上昇端位置から待機位置に移動する。 First, the stopper member 4 is separated from the top wall portion 20 of the mounting cap 12, the pressing head 3 located at the rising end position is pushed down, and the mounting cylinder portion 30 is moved downward with respect to the stem 10 together with the foaming member 17. As shown in FIGS. 1 and 2, the small diameter portion 40b of the casing 40 is fitted inside the upper end portion of the stem 10, and the upper end opening edge of the stem 10 is formed by the large diameter portion 40a on the outer surface of the casing 40. It abuts against the connection portion between the small diameter portion 40b and the small diameter portion 40b. As a result, the pressing head 3 is restricted from moving downward with respect to the stem 10, and can be linked to the vertical movement of the stem 10. At this time, the upper end portion of the urging member 66 is supported by the upper support portion 68 and is externally fitted to the upper mounting cylinder 69. Further, the upper end portion of the inner cylinder 51 of the air piston 13 is fitted inside the lower end portion of the mounting cylinder portion 30.
From the above, the pressing head 3 moves from the ascending end position to the standby position.

その後、押下ヘッド３を押し下げると、押下ヘッド３に追従して、発泡部材１７、ステム１０、および液用ピストン１５が下方移動するとともに、付勢部材６６が、上支持部６８および下支持部７０により上下方向に圧縮変形される。 After that, when the pressing head 3 is pushed down, the foaming member 17, the stem 10, and the liquid piston 15 move downward following the pressing head 3, and the urging member 66 moves the upper support portion 68 and the lower support portion 70. Compresses and deforms in the vertical direction.

このとき、空気用ピストン１３は移動せず、内筒５１の上端部と装着筒部３０の内面との間の隙間Ｓが狭められながら、内筒５１の下端部とステム１０の当接部６２との間に隙間が形成される。これにより、空気通路５を通して空気用シリンダ１４の内部と気液混合室Ｒ１とが連通する。
さらにこの際、液用ピストン１５の下方移動に伴い、液用ピストン１５の上端部が、上部弁体６５ａを介して弁部材６５を下方に移動させることにより、下部弁体６５ｂが、液用シリンダ１６内の下端開口部に着座して、この開口部を閉塞する。これにより、弁部材６５の下方移動が規制され、液用ピストン１５の上端部が、上部弁体６５ａから下方に離反し、液用シリンダ１６とステム１０の上部内とが連通する。 At this time, the air piston 13 does not move, and while the gap S between the upper end portion of the inner cylinder 51 and the inner surface of the mounting cylinder portion 30 is narrowed, the lower end portion of the inner cylinder 51 and the contact portion 62 of the stem 10 are narrowed. A gap is formed between the and. As a result, the inside of the air cylinder 14 and the gas-liquid mixing chamber R1 communicate with each other through the air passage 5.
Further, at this time, as the liquid piston 15 moves downward, the upper end portion of the liquid piston 15 moves the valve member 65 downward via the upper valve body 65a, so that the lower valve body 65b becomes the liquid cylinder. It sits on the lower end opening in 16 and closes this opening. As a result, the downward movement of the valve member 65 is restricted, the upper end portion of the liquid piston 15 is separated downward from the upper valve body 65a, and the liquid cylinder 16 and the inside of the upper part of the stem 10 communicate with each other.

そしてさらに、押下ヘッド３を押し下げると、内筒５１に対する装着筒部３０の下方移動が規制され、空気用ピストン１３も、ピストン用弁体５４が空気孔５２を閉塞したままの状態で下方に移動することにより、空気用シリンダ１４内において空気用ピストン１３の下方に位置する下室内の空気が圧縮される。これにより、前記下室内の空気が、内筒５１の下端部とステム１０の当接部６２との間の隙間から空気通路５内に流入して気液混合室Ｒ１に移送される。 Further, when the pressing head 3 is pushed down, the downward movement of the mounting cylinder portion 30 with respect to the inner cylinder 51 is restricted, and the air piston 13 also moves downward with the piston valve body 54 closing the air hole 52. By doing so, the air in the lower chamber located below the air piston 13 in the air cylinder 14 is compressed. As a result, the air in the lower chamber flows into the air passage 5 through the gap between the lower end of the inner cylinder 51 and the abutting portion 62 of the stem 10, and is transferred to the gas-liquid mixing chamber R1.

さらにこの際、下部弁体６５ｂが液用シリンダ１６内の下端開口部を閉塞した状態で、液用ピストン１５が下方移動するので、液用シリンダ１６内の内容液が上昇してステム１０の上部内に到達する。そして、液用シリンダ１６内の液圧を、ステム１０の弁座６０に着座している液吐出弁６１に作用させ、この液吐出弁６１を弁座６０から上方に離反させることにより、液用シリンダ１６の内部の内容液が気液混合室Ｒ１に移送される。 Further, at this time, since the liquid piston 15 moves downward in a state where the lower valve body 65b closes the lower end opening in the liquid cylinder 16, the content liquid in the liquid cylinder 16 rises and the upper part of the stem 10 Reach within. Then, the liquid pressure in the liquid cylinder 16 is applied to the liquid discharge valve 61 seated on the valve seat 60 of the stem 10, and the liquid discharge valve 61 is separated upward from the valve seat 60 for liquid use. The content liquid inside the cylinder 16 is transferred to the gas-liquid mixing chamber R1.

以上のことから、気液混合室Ｒ１で内容液および空気を合流させて気液混合体にすることができる。すると、気液混合体は、小径部４０ｂから発泡部材１７の内部に流れ込んで発泡するとともに、２つの発泡エレメント４１のメッシュ部材４１ｂを通過することで、きめの細かい所定の泡状となる。そして、この泡状となった内容液は、押下ヘッド３のノズル孔３２ａを通じて外部に吐出される。 From the above, the gas-liquid mixture can be formed by merging the content liquid and the air in the gas-liquid mixing chamber R1. Then, the gas-liquid mixture flows from the small diameter portion 40b into the foaming member 17 and foams, and also passes through the mesh member 41b of the two foaming elements 41 to form a finely-grained predetermined foam shape. Then, the foamy content liquid is discharged to the outside through the nozzle hole 32a of the pressing head 3.

吐出終了後、押下ヘッド３の押し下げを解除すると、付勢部材６６の弾性復元力によって、まず、押下ヘッド３、発泡部材１７、ステム１０、および液用ピストン１５が上方に移動し、ステム１０の当接部６２が、空気用ピストン１３における内筒５１の下端部に当接する。そして、空気用ピストン１３が上方に移動すると、空気用シリンダ１４の前記下室が膨張し、前記下室に負圧が生ずることで、ピストン用弁体５４の弁板が、外筒５０の内面から離反し、空気孔５２を通じて前記下室内に外気が吸引される。この過程において、液用ピストン１５が、液用シリンダ１６の内部を上方に移動することによって、下部弁体６５ｂが、液用シリンダ１６内の下端開口部から上方に離反し、容器体Ａの内容液が液用シリンダ１６内に吸引される。この際、下部弁体６５ｂが、上方から支持筒６７に支持されることにより、弁部材６５の上方移動が抑止される。 When the pressing of the pressing head 3 is released after the discharge is completed, the pressing head 3, the foaming member 17, the stem 10, and the liquid piston 15 first move upward due to the elastic restoring force of the urging member 66, and the stem 10 The contact portion 62 contacts the lower end portion of the inner cylinder 51 of the air piston 13. Then, when the air piston 13 moves upward, the lower chamber of the air cylinder 14 expands and a negative pressure is generated in the lower chamber, so that the valve plate of the piston valve body 54 becomes the inner surface of the outer cylinder 50. The outside air is sucked into the lower chamber through the air hole 52. In this process, the liquid piston 15 moves upward inside the liquid cylinder 16, so that the lower valve body 65b separates upward from the lower end opening in the liquid cylinder 16, and the contents of the container body A. The liquid is sucked into the liquid cylinder 16. At this time, the lower valve body 65b is supported by the support cylinder 67 from above, so that the valve member 65 is prevented from moving upward.

以上説明したように、本実施形態の吐出器１によれば、付勢部材６６が合成樹脂材料で形成されているので、吐出器１の廃棄に際し、付勢部材６６と、合成樹脂材料からなる他の部材と、を分別する必要をなくすことができる。
押下ヘッド３が上昇端位置に位置した状態で、上支持部６８および下支持部７０のうちのいずれか一方が、付勢部材６６から上下方向に離れるので、押下ヘッド３を上昇端位置に位置させた状態では、付勢部材６６に上下方向の圧縮力が加えられることがない。したがって、押下ヘッド３を上昇端位置に位置させ、付勢部材６６に上下方向の圧縮力を加えずに、流通および保管等を行うことによって、この期間に付勢部材６６に圧縮変形の癖が付くこと（塑性変形）がなく、吐出器１の使用に際して、付勢部材６６が弾性変形しにくくなっているのを防ぐことができる。なお、付勢部材６６が合成樹脂材料で形成されているので、付勢部材６６に上下方向の圧縮力を長時間加えると、付勢部材６６に圧縮変形の癖が付くおそれがある。
付勢部材６６が、押下ヘッド３の装着筒部３０を径方向の外側から囲っており、流通時等の未使用状態で、内容液が付勢部材６６に非接触となっているので、付勢部材６６が合成樹脂材料で形成されていても、付勢部材６６に、例えば内容液が染み込んで膨潤等が生ずるのを防ぐことができる。 As described above, according to the discharger 1 of the present embodiment, since the urging member 66 is made of a synthetic resin material, the urging member 66 and the synthetic resin material are formed when the discharger 1 is disposed of. It is possible to eliminate the need to separate the member from other members.
With the pressing head 3 located at the rising end position, either one of the upper support portion 68 and the lower supporting portion 70 separates from the urging member 66 in the vertical direction, so that the pressing head 3 is positioned at the rising end position. In this state, no compressive force is applied to the urging member 66 in the vertical direction. Therefore, by positioning the pressing head 3 at the ascending end position and performing distribution and storage without applying a vertical compressive force to the urging member 66, the urging member 66 has a habit of compressive deformation during this period. There is no sticking (plastic deformation), and it is possible to prevent the urging member 66 from being easily elastically deformed when the discharger 1 is used. Since the urging member 66 is made of a synthetic resin material, if a compressive force in the vertical direction is applied to the urging member 66 for a long time, the urging member 66 may have a habit of compression deformation.
The urging member 66 surrounds the mounting cylinder portion 30 of the pressing head 3 from the outside in the radial direction, and the content liquid is not in contact with the urging member 66 in an unused state such as during distribution. Even if the urging member 66 is made of a synthetic resin material, it is possible to prevent, for example, the content liquid from seeping into the urging member 66 and causing swelling or the like.

下支持部７０が、装着キャップ１２の天壁部２０の上面の一部となっているので、下支持部７０を容易に形成することができる。 Since the lower support portion 70 is a part of the upper surface of the top wall portion 20 of the mounting cap 12, the lower support portion 70 can be easily formed.

装着キャップ１２に、上昇端位置に位置する押下ヘッド３の下方移動を規制するストッパ部材４が離脱可能に設けられているので、押下ヘッド３が上昇端位置に位置した状態を確実に維持することが可能になり、流通および保管等の過程で、不意に押下ヘッド３が待機位置に移動し、付勢部材６６に上下方向の圧縮力が加えられるのを確実に防ぐことができる。 Since the mounting cap 12 is provided with a stopper member 4 that regulates the downward movement of the pressing head 3 located at the rising end position so as to be detachable, the pressing head 3 must be reliably maintained at the rising end position. This makes it possible to reliably prevent the pressing head 3 from suddenly moving to the standby position and applying a vertical compressive force to the urging member 66 in the process of distribution, storage, or the like.

なお、本発明の技術範囲は、上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において、種々の変更を加えることが可能である。 The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

例えば、上記実施形態では、発泡エレメント４１がメッシュ部材４１ｂを具備し、メッシュ部材４１ｂを通過させることで、発泡した気液混合体を泡状にさせたが、メッシュ部材４１ｂに限定されるものではなく、例えば多孔体等を利用して泡状の内容液を作り出しても構わない。
また、前記実施形態では、吐出器１として、ノズル孔３２ａから泡状の内容液を吐出する、いわゆるフォーマポンプを示したが、これに限られるものではない。吐出器は、例えば、空気用ピストン１３、空気用シリンダ１４、気液混合室Ｒ１、および発泡部材１７等を備えず、口部Ａ１に装着した状態で、押下ヘッド３を押下してステム１０を下方に移動させポンプ２を作動させることにより、内容液をステム１０内を通してノズル孔３２ａから吐出する構成であれば、適宜変更してもよい。 For example, in the above embodiment, the foaming element 41 includes the mesh member 41b, and the foamed gas-liquid mixture is foamed by passing through the mesh member 41b, but the foaming element 41 is not limited to the mesh member 41b. Instead, for example, a foamy content liquid may be produced by using a porous body or the like.
Further, in the above-described embodiment, the so-called former pump that discharges the foamy content liquid from the nozzle hole 32a is shown as the discharger 1, but the present invention is not limited to this. The discharger is not provided with, for example, an air piston 13, an air cylinder 14, a gas-liquid mixing chamber R1, a foaming member 17, etc., and is mounted on the mouth A1, and the pressing head 3 is pressed to push the stem 10. If the configuration is such that the content liquid is discharged from the nozzle hole 32a through the stem 10 by moving the pump 2 downward, the content may be appropriately changed.

その他、本発明の趣旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した変形例を適宜組み合わせてもよい。 In addition, it is possible to replace the components in the above-described embodiment with well-known components as appropriate without departing from the spirit of the present invention, and the above-mentioned modifications may be appropriately combined.

１ 吐出器
２ ポンプ
３ 押下ヘッド
４ ストッパ部材
１０ ステム
１２ 装着キャップ
３０ 装着筒部
３２ａ ノズル孔
６６ 付勢部材
６８ 上支持部
７０ 下支持部
Ａ 容器体
Ａ１ 口部 1 Discharger 2 Pump 3 Pushing head 4 Stopper member 10 Stem 12 Mounting cap 30 Mounting cylinder 32a Nozzle hole 66 Biasing member 68 Upper support 70 Lower support A Container body A1 Mouth

Claims (3)

内容液が収容された容器体の口部に上方付勢状態で下方移動可能に立設されるステムを有するポンプと、
前記ステムの上端部に装着される装着筒部を有するとともに、ノズル孔が形成された押下ヘッドと、
前記ポンプを前記口部に装着する装着キャップと、を備え、
前記口部に装着した状態で、前記押下ヘッドを押下して前記ステムを下方に移動させ前記ポンプを作動させることにより、前記内容液を前記ステム内を通して前記ノズル孔から吐出する吐出器であって、
前記ポンプは、前記装着筒部を径方向の外側から囲い、かつ前記押下ヘッドを介して前記ステムを上方付勢する、合成樹脂製の付勢部材を備え、
前記押下ヘッドは、前記付勢部材の上端部を支持する上支持部を備え、
前記押下ヘッドは、待機位置に位置した状態で、前記ステムに対する下方移動が規制されて、前記ステムの上下動に連係し、
前記押下ヘッドが、前記待機位置に位置した状態で、前記付勢部材のうち、上端部が前記上支持部に支持されるとともに、下端部が下支持部に支持され、
前記押下ヘッドが、前記待機位置より上方の上昇端位置に位置した状態で、前記装着筒部が、前記ステムに下方に向けて摺動可能に外嵌し、かつ前記上支持部および前記下支持部のうちのいずれか一方が、前記付勢部材から上下方向に離れる、吐出器。 A pump with a stem that is erected at the mouth of the container containing the contents liquid so that it can move downward while being urged upward.
A pressing head having a mounting cylinder portion mounted on the upper end portion of the stem and having a nozzle hole formed therein.
A mounting cap for mounting the pump on the mouth portion is provided.
A discharger that discharges the content liquid from the nozzle hole through the stem by pressing the pressing head to move the stem downward and operating the pump while being attached to the mouth portion. ,
The pump includes a synthetic resin urging member that surrounds the mounting cylinder from the outside in the radial direction and urges the stem upward via the pressing head.
The pressing head includes an upper support portion that supports the upper end portion of the urging member.
The push head is restricted from moving downward with respect to the stem in a state of being positioned in the standby position, and is linked to the vertical movement of the stem.
With the pressing head located at the standby position, the upper end of the urging member is supported by the upper support and the lower end is supported by the lower support.
In a state where the pressing head is located at the rising end position above the standby position, the mounting cylinder portion is slidably fitted onto the stem downward, and the upper support portion and the lower support portion are supported. A discharger in which one of the portions is separated from the urging member in the vertical direction. 前記下支持部は、前記装着キャップの天壁部の上面の一部となっている、請求項１に記載の吐出器。 The discharger according to claim 1, wherein the lower support portion is a part of an upper surface of a top wall portion of the mounting cap. 前記装着キャップに、前記上昇端位置に位置する前記押下ヘッドの下方移動を規制するストッパ部材が離脱可能に設けられている、請求項１または２に記載の吐出器。 The discharger according to claim 1 or 2, wherein the mounting cap is provided with a stopper member that restricts the downward movement of the pressing head located at the rising end position so as to be detachable.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392962A (en) * 1992-12-31 1995-02-28 Meshberg; Philip Atomizing pump
JPH1043646A (en) * 1996-07-30 1998-02-17 Yoshino Kogyosho Co Ltd Liquid jet pump
JPH1059404A (en) * 1996-08-15 1998-03-03 Yoshino Kogyosho Co Ltd Liquid discharging apparatus
JPH10296143A (en) * 1997-04-28 1998-11-10 Yoshino Kogyosho Co Ltd Liquid jetting pump
JP2012223709A (en) * 2011-04-20 2012-11-15 Puresuko Kk Fluid discharge pump
JP2014046967A (en) * 2012-08-31 2014-03-17 Yoshino Kogyosho Co Ltd Foam discharger
JP2015521138A (en) * 2012-05-16 2015-07-27 ヤオ ウー ディン， Pressurized liquid pump
CN210823536U (en) * 2019-08-29 2020-06-23 江门敬记塑胶厂有限公司 Lotion pump with external spring

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392962A (en) * 1992-12-31 1995-02-28 Meshberg; Philip Atomizing pump
JPH1043646A (en) * 1996-07-30 1998-02-17 Yoshino Kogyosho Co Ltd Liquid jet pump
JPH1059404A (en) * 1996-08-15 1998-03-03 Yoshino Kogyosho Co Ltd Liquid discharging apparatus
JPH10296143A (en) * 1997-04-28 1998-11-10 Yoshino Kogyosho Co Ltd Liquid jetting pump
JP2012223709A (en) * 2011-04-20 2012-11-15 Puresuko Kk Fluid discharge pump
JP2015521138A (en) * 2012-05-16 2015-07-27 ヤオ ウー ディン， Pressurized liquid pump
JP2014046967A (en) * 2012-08-31 2014-03-17 Yoshino Kogyosho Co Ltd Foam discharger
CN210823536U (en) * 2019-08-29 2020-06-23 江门敬记塑胶厂有限公司 Lotion pump with external spring

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