JP2014028620A - Bubble discharger - Google Patents
Bubble discharger Download PDFInfo
- Publication number
- JP2014028620A JP2014028620A JP2012169261A JP2012169261A JP2014028620A JP 2014028620 A JP2014028620 A JP 2014028620A JP 2012169261 A JP2012169261 A JP 2012169261A JP 2012169261 A JP2012169261 A JP 2012169261A JP 2014028620 A JP2014028620 A JP 2014028620A
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- Prior art keywords
- stem
- valve
- cylinder
- air
- valve seat
- Prior art date
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 40
- 238000009423 ventilation Methods 0.000 claims description 25
- 239000006260 foam Substances 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 16
- 238000005187 foaming Methods 0.000 claims description 9
- 238000013022 venting Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
Abstract
Description
本発明は泡吐出器に関し、詳しくは、空気用シリンダ内への外気の導入を司る外気導入弁を簡便な構造で形成した泡吐出器に関する。 The present invention relates to a foam dispenser, and more particularly, to a foam dispenser in which an outside air introduction valve that controls introduction of outside air into an air cylinder is formed with a simple structure.
泡吐出器として、大径の空気用シリンダと小径の液用シリンダを上下に同心円状に連設したシリンダ部材と、液用シリンダ内を摺動する液用ピストンをステム外周下部より突設するとともに、空気用シリンダ内を摺動する空気用ピストンをステム外周上部に連携させ、ステム上端に吐出ヘッドを嵌着して上方付勢状態で上下動可能に装着した作動部材とを備え、作動部材の上下動により液用シリンダ内の液と空気用シリンダ内の空気を合流させて起泡部材を介して起泡させ、吐出ヘッドの吐出口より吐出する如く構成したものが知られている。（例えば、特許文献１参照） As a foam discharger, a cylinder member in which a large-diameter air cylinder and a small-diameter liquid cylinder are connected concentrically up and down, and a liquid piston sliding inside the liquid cylinder project from the lower part of the outer periphery of the stem. A pneumatic piston that slides in the pneumatic cylinder is linked to the upper part of the outer periphery of the stem, and an operating member mounted on the upper end of the stem so as to be movable up and down in an upward biased state. A configuration is known in which the liquid in the liquid cylinder and the air in the air cylinder are merged by vertical movement to be bubbled through a foaming member and discharged from the discharge port of the discharge head. (For example, see Patent Document 1)
特許文献１に記載されている泡吐出器では、泡の吐出に伴って減少する空気用シリンダ内に外気を導入するための外気導入弁を備えているが、この外気導入弁は、空気用ピストンを構成する隔壁部分に弁口を開口し、この弁口を閉塞する弁体を、別部材で構成した弁部材を組み付けることで形成している。 The bubble discharge device described in Patent Document 1 includes an outside air introduction valve for introducing outside air into an air cylinder that decreases as bubbles are discharged. This outside air introduction valve is an air piston. Is formed by assembling a valve member formed of a separate member.
従来のこの種の泡吐出器では、上記別部材の弁部材を組み付けるため、その分の製造が煩雑となり、コスト面でも高騰する必然性があり、また、これら弁部材は材質が軟材質で形成されているため、弁部材自体の不具合を生じ易かった、更に、空気用シリンダを横断する隔壁部分に外気導入弁を設けているため、そこからの液体の浸入が起こり易いという構造上の問題もある。 In this type of conventional foam discharger, since the separate valve member is assembled, the manufacturing of that part becomes complicated and the cost is inevitably increased. In addition, these valve members are made of a soft material. Therefore, there is a structural problem that the valve member itself is liable to cause a failure, and further, since the outside air introduction valve is provided in the partition wall portion that crosses the air cylinder, the liquid easily enters from there. .
本発明は上記した点に鑑みてなされたもので、別部材としての弁部材を用いずに外気導入弁を構成できるため、製造が簡素化されて生産性が向上し、また、コストの低減を図れるという特徴があり、また、外気導入弁を構成する部分を細密構造としていないため、弁機能の不具合を生じる虞が少なく、また、液体の浸入が非常に起こり難い泡吐出器を提案する。 The present invention has been made in view of the above points, and since an outside air introduction valve can be configured without using a valve member as a separate member, manufacturing is simplified, productivity is improved, and cost is reduced. There is a feature that it can be achieved, and since the portion constituting the outside air introduction valve is not a fine structure, there is little possibility of causing a malfunction of the valve function, and a bubble discharger is proposed in which liquid intrusion hardly occurs.
第１の手段として、以下の通り構成した。即ち、容器体１００の口頸部１０１外周に嵌合させる装着キャップＡに上端部を固定して容器体１００内に垂下するとともに、大径の空気用シリンダ２０及び小径の液用シリンダ２１を上下に同心円状に連設してなるシリンダ部材Ｂと、液用シリンダ２１内を摺動する液用ピストンＣ１をステムＣ２外周下部より突設するとともに、空気用シリンダ２０内を摺動する空気用ピストンＣ３をステムＣ２外周上部に連携させ、ステムＣ２の上端に吐出ヘッドＣ４を嵌着して上方付勢状態で上下動可能に装着した作動部材Ｃとを備え、作動部材Ｃの上下動により、液用シリンダ２１内からの液と空気用シリンダ２０内からの空気を合流させて起泡部材Ｃ６を介して起泡させ、吐出ヘッドＣ４の吐出口５５より吐出する如く構成した泡吐出器であって、空気用ピストンＣ３は、ステムＣ２外周に所定幅の上下動が可能に嵌合させた筒状弁部４５と、空気用シリンダ２０内周に摺動可能に嵌合させた摺動部４７とを、空気用シリンダ２０内上下を区画する隔壁４６で連結して構成し、ステムＣ２外周上端部に嵌着した吐出ヘッドＣ４の下面外周縁部より弁座用筒部５６を垂設し、弁座用筒部５６とステムＣ２外周との間に環状凹部５７を画成し、空気用シリンダ２０内から、ステムＣ２と筒状弁部４５との間、環状凹部５７内を介してステムＣ２内に連通する空気通路ｐを形成し、筒状弁部４５の上端部と、弁座用筒部５６の内周面とで、作動部材Ｃの下降時に閉塞し、作動部材Ｃの上昇時に開弁して外部と空気用シリンダ２０内を連通する外気導入弁Ｖ２を構成した。 The first means is configured as follows. That is, the upper end is fixed to the mounting cap A to be fitted to the outer periphery of the mouth-and-neck portion 101 of the container body 100 and hangs down in the container body 100, and the large-diameter air cylinder 20 and the small-diameter liquid cylinder 21 are moved up and down. A cylinder member B concentrically connected to the liquid cylinder 21 and a liquid piston C1 that slides in the liquid cylinder 21 project from the lower outer periphery of the stem C2 and an air piston that slides in the air cylinder 20 C3 is linked to the upper periphery of the stem C2, and the discharge head C4 is fitted to the upper end of the stem C2 so as to be able to move up and down in an upward biased state. A bubble discharger configured to cause the liquid from the cylinder for air 21 and the air from the cylinder for air 20 to merge to cause foaming via the foaming member C6 and to be discharged from the discharge port 55 of the discharge head C4. The air piston C3 includes a cylindrical valve portion 45 fitted to the outer periphery of the stem C2 so as to be movable up and down by a predetermined width, and a sliding portion 47 fitted to the inner periphery of the air cylinder 20 so as to be slidable. The cylinder portion 56 for valve seats is suspended from the outer peripheral edge of the lower surface of the discharge head C4 that is connected by the partition wall 46 that divides the upper and lower sides of the air cylinder 20 and is fitted to the upper end of the outer periphery of the stem C2. An annular recess 57 is defined between the cylinder portion 56 and the outer periphery of the stem C2, and from the inside of the cylinder 20 for air, into the stem C2 between the stem C2 and the cylindrical valve portion 45, and inside the annular recess 57. A communicating air passage p is formed, and the upper end portion of the tubular valve portion 45 and the inner peripheral surface of the valve seat tubular portion 56 are closed when the operating member C is lowered and opened when the operating member C is raised. Thus, an outside air introduction valve V2 communicating with the outside and the inside of the air cylinder 20 is configured.
第２の手段として、以下の通り構成した。即ち、前記第１の手段に於いて、隔壁４６の上面内周縁部に弁座用筒部５６の下端が当接する上部係止部４８を設け、ステムＣ２外周に筒状弁部４５の下端が当接する下部係止部３８を突設し、筒状弁部４５の下端が下部係止部３８に当接した状態で、筒状弁部４５とステムＣ２との間と、空気用シリンダ２０内との、通気が可能な通気手段を備え、上部係止部４８上に弁座用筒部５６の下端が当接する状態から、下部係止部３８上に筒状弁部４５の下端が当接する状態までの、筒状弁部４５のステムＣ２に対する相対的上下動が可能に構成した。 The second means is configured as follows. That is, in the first means, an upper locking portion 48 is provided at the inner peripheral edge of the upper surface of the partition wall 46 so that the lower end of the valve seat tube portion 56 contacts, and the lower end of the tubular valve portion 45 is disposed on the outer periphery of the stem C2. A lower locking portion 38 that abuts is protruded, and the lower end of the cylindrical valve portion 45 is in contact with the lower locking portion 38, and between the cylindrical valve portion 45 and the stem C <b> 2 and in the air cylinder 20. The lower end of the tubular valve portion 45 abuts on the lower locking portion 38 from the state in which the lower end of the valve seat tube portion 56 abuts on the upper locking portion 48. Up to the state, the tubular valve portion 45 is configured to be movable up and down relative to the stem C2.
第３の手段として、以下の通り構成した。即ち、前記第２の手段に於いて、隔壁４６の上面内周縁部に、周方向複数突設した各支持突起４９の上面を、上部係止部４８として構成した。 The third means was configured as follows. That is, in the second means, the upper surface of each of the supporting protrusions 49 protruding in the circumferential direction on the inner peripheral edge of the upper surface of the partition wall 46 is configured as the upper locking portion 48.
第４の手段として、以下の通り構成した。即ち、前記第２の手段又は第３の手段に於いて、下部係止部３８として、ステムＣ２外周にフランジ状の係止凸部３９を突設し、前記通気手段として係止凸部３９の上面に放射状の複数の通気用凹溝４０を凹設した。 The fourth means is configured as follows. That is, in the second means or the third means, a flange-like locking projection 39 is provided on the outer periphery of the stem C2 as the lower locking portion 38, and the locking projection 39 is provided as the ventilation means. A plurality of radial grooves 40 for ventilation are provided on the upper surface.
第５の手段として、以下の通り構成した。即ち、前記第２の手段又は第３の手段に於いて、下部係止部３８として、ステムＣ２外周にフランジ状の係止凸部３９を突設し、前記通気手段として、筒状弁部４５の下端部に通気用切欠き４２を設けた。 The fifth means is configured as follows. That is, in the second means or the third means, a flange-like locking projection 39 is provided on the outer periphery of the stem C2 as the lower locking portion 38, and the tubular valve portion 45 is used as the ventilation means. The ventilation notch 42 was provided in the lower end part of this.
第６の手段として、以下の通り構成した。即ち、前記第１の手段乃至第５の手段に於いて、弁座用筒部５６の内周面上部を小径の外気導入弁用の弁座６０に形成するとともに、テーパ部６１を介して、内周面下部を大径部６２に形成し、筒状弁部４５のステムＣ２に対する最上昇状態で、筒状弁部４５の上端部が外気導入弁用の弁座６０に摺動可能に嵌合し、筒状弁部４５のステムＣ２に対する最下降状態で、筒状弁部４５の上端部が大径部６２位置に相対下降して外部と空気用シリンダ２０内とが連通する。 The sixth means is configured as follows. That is, in the first to fifth means, the upper part of the inner peripheral surface of the valve seat tube portion 56 is formed in the valve seat 60 for the small-diameter outside air introduction valve, and the taper portion 61 is interposed. The lower portion of the inner peripheral surface is formed in the large diameter portion 62, and the upper end portion of the cylindrical valve portion 45 is slidably fitted to the valve seat 60 for the outside air introduction valve in the highest rise state with respect to the stem C2 of the cylindrical valve portion 45. When the cylindrical valve portion 45 is in the lowest lowered state with respect to the stem C2, the upper end portion of the cylindrical valve portion 45 is relatively lowered to the position of the large diameter portion 62 so that the outside communicates with the inside of the air cylinder 20.
第７の手段として、以下の通り構成した。即ち、前記第６の手段に於いて、弁座用筒部５６の大径部６２に通気用窓６３を設けた。 The seventh means is configured as follows. That is, in the sixth means, the ventilation window 63 is provided in the large diameter portion 62 of the valve seat tube portion 56.
本発明によれば、空気用ピストンＣ３は、ステムＣ２外周に所定幅の上下動が可能に嵌合させた筒状弁部４５と、空気用シリンダ２０内周に摺動可能に嵌合させた摺動部４７とを、空気用シリンダ２０内上下を区画する隔壁４６で連結して構成し、ステムＣ２外周上端部に嵌着した吐出ヘッドＣ４の下面外周縁部より弁座用筒部５６を垂設し、弁座用筒部５６とステムＣ２外周との間に環状凹部５７を画成し、空気用シリンダ２０内から、ステムＣ２と筒状弁部４５との間、環状凹部５７内を介してステムＣ２内に連通する空気通路ｐを形成し、筒状弁部４５の上端部と、弁座用筒部５６の内周面とで、作動部材Ｃの下降時に閉塞し、作動部材Ｃの上昇時に開弁して外部と空気用シリンダ２０内を連通する外気導入弁Ｖ２を構成したので、別部材としての弁部材を用いずに外気導入弁を構成できるため、製造が簡素化されて生産性が向上し、また、コストの低減を図れるという特徴がある。また、外気導入弁を構成する部分を細密構造としていないため、弁機能の不具合を生じる虞が少なく、また、その構成上液体の浸入が非常に起こり難いという特徴がある。 According to the present invention, the air piston C3 is slidably fitted to the inner periphery of the air cylinder 20 and the cylindrical valve portion 45 fitted to the outer periphery of the stem C2 so as to be movable up and down by a predetermined width. The sliding portion 47 is connected by a partition wall 46 that divides the upper and lower sides of the air cylinder 20, and the valve seat tube portion 56 is formed from the outer peripheral edge of the lower surface of the discharge head C4 fitted to the upper end of the outer periphery of the stem C2. An annular recess 57 is defined between the valve seat cylinder 56 and the outer periphery of the stem C2, and from the inside of the air cylinder 20, between the stem C2 and the cylindrical valve part 45, and within the annular recess 57. An air passage p communicating with the inside of the stem C2 is formed, and the upper end portion of the tubular valve portion 45 and the inner peripheral surface of the valve seat tubular portion 56 are closed when the operation member C is lowered, and the operation member C Since the outside air introduction valve V2 that opens and communicates with the outside of the cylinder 20 for air is constructed when the valve rises, Since it constitutes the external air inlet valve without a valve member as wood, production is improved productivity is simplified, also, is characterized in that attained a reduction in cost. In addition, since the portion constituting the outside air introduction valve is not a fine structure, there is little possibility of causing a malfunction of the valve function, and liquid intrusion hardly occurs due to its configuration.
隔壁４６の上面内周縁部に弁座用筒部５６の下端が当接する上部係止部４８を設け、ステムＣ２外周に筒状弁部４５の下端が当接する下部係止部３８を突設し、筒状弁部４５の下端が下部係止部３８に当接した状態で、筒状弁部４５とステムＣ２との間と、空気用シリンダ２０内との、通気が可能な通気手段を備え、上部係止部４８上に弁座用筒部５６の下端が当接する状態から、下部係止部３８上に筒状弁部４５の下端が当接する状態までの、筒状弁部４５のステムＣ２に対する相対的上下動が可能に構成した場合には、筒状弁部４５のステムＣ２に対する相対上下動の際の最上昇位置での係止、最下降位置での係止を安定した状態で行なえるという特徴がある。 An upper locking portion 48 with which the lower end of the valve seat tube portion 56 abuts is provided on the inner peripheral edge of the upper surface of the partition wall 46, and a lower locking portion 38 with which the lower end of the tubular valve portion 45 abuts is provided on the outer periphery of the stem C2. A ventilation means is provided that allows ventilation between the tubular valve portion 45 and the stem C2 and in the air cylinder 20 with the lower end of the tubular valve portion 45 in contact with the lower locking portion 38. The stem of the tubular valve portion 45 from the state in which the lower end of the valve seat tubular portion 56 contacts the upper locking portion 48 to the state in which the lower end of the tubular valve portion 45 contacts the lower locking portion 38. In a case where relative vertical movement with respect to C2 is possible, the tubular valve portion 45 is stably locked at the highest position when the cylinder valve 45 is moved relative to the stem C2 and locked at the lowest position. There is a feature that can be done.
隔壁４６の上面内周縁部に、周方向複数突設した各支持突起４９の上面を、上部係止部４８として構成した場合には、弁座用筒部５６の長さの調整が容易で、空気用ピストンＣ３を押圧するための弁座用筒部５６の長さを短く構成できる特徴がある。 When the upper surface of each supporting projection 49 provided in the circumferential direction on the upper surface of the partition wall 46 is configured as an upper locking portion 48, the length of the valve seat tube portion 56 can be easily adjusted, There exists the characteristic which can comprise the length of the cylinder part 56 for valve seats for pressing the piston C3 for air short.
下部係止部３８として、ステムＣ２外周にフランジ状の係止凸部３９を突設し、前記通気手段として係止凸部３９の上面に放射状の複数の通気用凹溝４０を凹設した場合には、安定した筒状弁部４５下端の係止を行なえるとともに、充分な通気性を得られるという特徴がある。 As a lower locking portion 38, a flange-shaped locking protrusion 39 is provided on the outer periphery of the stem C2, and a plurality of radial ventilation grooves 40 are provided on the upper surface of the locking protrusion 39 as the ventilation means. Is characterized in that a stable lower end of the tubular valve portion 45 can be locked and sufficient air permeability can be obtained.
下部係止部３８として、ステムＣ２外周にフランジ状の係止凸部３９を突設し、前記通気手段として、筒状弁部４５の下端部に通気用切欠き４２を設けた場合には、同様に安定した筒状弁部４５下端の係止を行なえるとともに、充分な通気性を得られる。 When the lower locking portion 38 is provided with a flange-shaped locking projection 39 on the outer periphery of the stem C2, and the ventilation means is provided with a ventilation notch 42 at the lower end of the tubular valve portion 45, Similarly, the lower end of the stable cylindrical valve portion 45 can be locked and sufficient air permeability can be obtained.
弁座用筒部５６の内周面上部を小径の外気導入弁用の弁座６０に形成するとともに、テーパ部６１を介して、内周面下部を大径部６２に形成し、筒状弁部４５のステムＣ２に対する最上昇状態で、筒状弁部４５の上端部が外気導入弁用の弁座６０に摺動可能に嵌合し、筒状弁部４５のステムＣ２に対する最下降状態で、筒状弁部４５の上端部が大径部６２位置に相対下降して外部と空気用シリンダ２０内とが連通する場合には、外気導入弁Ｖ２の開閉をより円滑に行なえるという特徴がある。 The upper part of the inner peripheral surface of the valve seat cylinder part 56 is formed in the valve seat 60 for a small-diameter outside air introduction valve, and the lower part of the inner peripheral surface is formed in the large diameter part 62 via the taper part 61. The upper end portion of the tubular valve portion 45 is slidably fitted into the valve seat 60 for the outside air introduction valve in the most elevated state of the portion 45 with respect to the stem C2, and the tubular valve portion 45 is in the lowest lowered state with respect to the stem C2. When the upper end portion of the cylindrical valve portion 45 is relatively lowered to the position of the large diameter portion 62 and the outside communicates with the inside of the air cylinder 20, the outside air introduction valve V2 can be opened and closed more smoothly. is there.
弁座用筒部５６の大径部６２に通気用窓６３を設けた場合には、外気導入弁Ｖ２の開放時に於ける外気の環状凹部５７内へ導入をより円滑に行なえるという特徴がある。 When the ventilation window 63 is provided in the large-diameter portion 62 of the valve seat cylinder portion 56, there is a feature that the outside air can be smoothly introduced into the annular recess 57 when the outside air introduction valve V2 is opened. .
以下、本発明の形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１乃至図３は本発明の泡吐出器の第１実施例を示す。泡吐出器１は、装着キャップＡと、シリンダ部材Ｂと、作動部材Ｃと、ポペット弁体Ｄと、を備えている。 1 to 3 show a first embodiment of the foam dispenser of the present invention. The foam discharger 1 includes a mounting cap A, a cylinder member B, an operating member C, and a poppet valve body D.
装着キャップＡは、泡吐出器１を容器体１００に固定するためのもので、容器体１００の口頸部１０１外周に嵌合させる周壁１０の上端縁よりフランジ状の頂壁１１を延設し、頂壁１１中央部に開口した窓孔縁部に、ガイド筒１２を起立している。ガイド筒１２の下端は頂壁１１より下方へ僅かに突出している。 The mounting cap A is for fixing the foam discharger 1 to the container body 100, and a flange-like top wall 11 is extended from the upper end edge of the peripheral wall 10 to be fitted to the outer periphery of the mouth neck portion 101 of the container body 100. The guide tube 12 is erected at the edge of the window hole opened at the center of the top wall 11. The lower end of the guide tube 12 slightly protrudes downward from the top wall 11.
シリンダ部材Ｂは、上端部を装着キャップＡ裏面外周部に装着固定させた大径の空気用シリンダ２０の下部に、小径の液用シリンダ２１を同心円状に延設している。液用シリンダ２１は、空気用シリンダ２０の底壁部内周縁に周壁部の上端縁を連結して下方へ垂設し、周壁部の下端縁より中央を開口したテーパ状の底壁部を延設し、底壁部の上面を吸込み弁用の弁座２２として構成している。また、底壁部の中央開口縁よりパイプ嵌合筒２３を一体に垂設し、パイプ嵌合筒２３に吸上げ用のパイプ２４の上端を嵌着し、その下端を容器体１００内下端部に垂下させている。更に、液用シリンダ２１内面の底壁部外縁部から周壁部下端部に至る部分に、周方向複数の係止リブ２５を突設している。各係止リブ２５の上下中間部には上向き段部を設けている。また、空気用シリンダ２０の内周上部には、後述する空気用ピストンＣ３を係止する環状の係止突条２６を突設している。 The cylinder member B has a small-diameter liquid cylinder 21 concentrically extending below a large-diameter air cylinder 20 whose upper end is fixedly attached to the outer periphery of the back surface of the mounting cap A. The liquid cylinder 21 is connected to the inner peripheral edge of the bottom wall portion of the air cylinder 20 with the upper edge of the peripheral wall portion hanging downward, and extends from the lower end edge of the peripheral wall portion to a tapered bottom wall portion that opens at the center. The upper surface of the bottom wall portion is configured as a valve seat 22 for the suction valve. Further, the pipe fitting cylinder 23 is integrally suspended from the central opening edge of the bottom wall portion, and the upper end of the suction pipe 24 is fitted into the pipe fitting cylinder 23, and the lower end thereof is the lower end portion in the container body 100. Is hanging down. Further, a plurality of locking ribs 25 in the circumferential direction are projected from the bottom wall portion outer edge portion of the liquid cylinder 21 to the lower end portion of the peripheral wall portion. An upward stepped portion is provided at an upper and lower intermediate portion of each locking rib 25. Further, an annular locking ridge 26 that locks an air piston C <b> 3 described later is provided on the inner peripheral upper portion of the air cylinder 20.
作動部材Ｃは、シリンダ部材Ｂに対して上方付勢状態で上下動可能に組み付けしたもので、液用ピストンＣ１と、ステムＣ２と、空気用ピストンＣ３と、吐出ヘッドＣ４と、装着筒部材Ｃ５と、起泡部材Ｃ６とを備えている。 The actuating member C is assembled to the cylinder member B so as to be vertically movable in an upward biased state. The actuating member C is a liquid piston C1, a stem C2, an air piston C3, a discharge head C4, and a mounting cylinder member C5. And a foaming member C6.
液用ピストンＣ１は、ステムＣ２内下部に嵌着した嵌合筒部３０の下端外周より外方へ上下スカート状の摺動部３１を突設し、摺動部３１を液用シリンダ２１内周に液密摺動可能に嵌合させている。また、嵌合筒部３０の上端部はステムＣ２内の上下方向中間部に於いて突条形態の逆止弁用の弁座３２を形成している。そして、液用ピストンＣ１の嵌合筒部３０下面と各係止リブ２５の上向き段部との間にコイルスプリングｓを介在させて作動部材Ｃを常時上方へ付勢させている。 The liquid piston C1 has an upper and lower skirt-shaped sliding portion 31 projecting outward from the outer periphery of the lower end of the fitting cylinder portion 30 fitted to the lower portion of the stem C2, and the sliding portion 31 is connected to the inner periphery of the liquid cylinder 21. Are fitted in a liquid-tight slidable manner. Further, the upper end portion of the fitting cylinder portion 30 forms a valve seat 32 for a check valve in the form of a ridge at an intermediate portion in the vertical direction in the stem C2. A coil spring s is interposed between the lower surface of the fitting cylinder portion 30 of the liquid piston C1 and the upward step portion of each locking rib 25 to constantly urge the operating member C upward.
ステムＣ２は、上下端を開口した筒状をなし、液用シリンダ２１に摺動する液用ピストンＣ１を下部外周に突設するとともに、空気用シリンダ２０内を摺動する空気用ピストンＣ３を外周上部に連携させて、液用シリンダ２１内及び空気用シリンダ２０内を上下動可能に装着されている。ステムＣ２内上部には吐出弁用の弁座３５を形成し、該弁座上に載置された玉状の吐出弁体３６とで吐出弁Ｖ１を形成している。また、吐出弁用の弁座３５の下面から逆止弁用の弁座３２の直上までの間に周方向複数の縦突条３７を突設している。更に、外面上下方向中間部には、空気用ピストンＣ３の下降を制限係止する下部係止部３８を突設している。第１実施例に於ける下部係止部３８は、フランジ状の係止凸部３９として構成している。また、本発明では、空気用ピストンＣ３の後述する筒状弁部４５の下端が下部係止部３８に当接した状態で、筒状弁部４５とステムＣ２との間と、空気用シリンダ２０内との、通気が可能な通気手段を備えているが、第１実施例では、該通気手段として係止凸部３９の上面に凹設した放射状の複数の通気用凹溝４０を採用している。また、係止凸部３９の上方の筒壁外周には周方向複数の縦突条４１を突設している。 The stem C2 has a cylindrical shape with open upper and lower ends, and a liquid piston C1 that slides on the liquid cylinder 21 protrudes from the outer periphery of the lower portion, and an air piston C3 that slides in the air cylinder 20 has an outer periphery. In cooperation with the upper part, the liquid cylinder 21 and the air cylinder 20 are mounted so as to move up and down. A valve seat 35 for a discharge valve is formed in the upper part of the stem C2, and a discharge valve V1 is formed by a ball-shaped discharge valve body 36 placed on the valve seat. A plurality of vertical ridges 37 in the circumferential direction project from the lower surface of the valve seat 35 for the discharge valve to directly above the valve seat 32 for the check valve. Further, a lower locking portion 38 that projects and restricts the lowering of the air piston C3 protrudes from the middle portion of the outer surface in the vertical direction. The lower locking portion 38 in the first embodiment is configured as a flange-shaped locking projection 39. Further, in the present invention, with the lower end of a later-described tubular valve portion 45 of the air piston C3 in contact with the lower locking portion 38, between the tubular valve portion 45 and the stem C2, and the air cylinder 20 In the first embodiment, a plurality of radial vent grooves 40 provided on the upper surface of the locking projection 39 are used as the vent means. Yes. A plurality of circumferential ridges 41 project in the circumferential direction on the outer periphery of the cylindrical wall above the locking projection 39.
空気用ピストンＣ３は、内周縁の筒状弁部４５をステムＣ２外周に小幅の上下動が可能に嵌合させ、筒状弁部４５外周より延設した階段状の隔壁４６を介して、空気用シリンダ２０内周に液密摺動可能に嵌合した上下スカート状の摺動部４７延設している。第１実施例に於いて筒状弁部４５は、ステムＣ２外周の縦突条４１外面に上下動可能に嵌合させている。また、隔壁４６の上面内周縁部に、後述する弁座用筒部５６の下端が当接する上部係止部４８を設けている。第１実施例では、隔壁４６上面内周縁部に周方向複数突設した支持突起４９の上面を、上部係止部４８として採用している。 The air piston C3 has an inner peripheral cylindrical valve portion 45 fitted to the outer periphery of the stem C2 so as to be able to move up and down with a small width, and the air piston C3 has a stepped partition wall 46 extending from the outer periphery of the cylindrical valve portion 45. An upper and lower skirt-shaped sliding portion 47 is fitted to the inner circumference of the cylinder 20 for fluid-tight sliding. In the first embodiment, the tubular valve portion 45 is fitted to the outer surface of the vertical protrusion 41 on the outer periphery of the stem C2 so as to be movable up and down. Further, an upper locking portion 48 with which a lower end of a later-described valve seat cylinder portion 56 abuts is provided on the inner peripheral edge of the upper surface of the partition wall 46. In the first embodiment, the upper surface of the support protrusion 49 that protrudes in the circumferential direction on the inner peripheral edge of the upper surface of the partition wall 46 is employed as the upper locking portion 48.
吐出ヘッドＣ４はステムＣ２の外周上端部に内周下端部を嵌合させた縦筒５０を頂板５１裏面より垂設し、頂板５１の周縁部から外周壁５２を垂設し、外周壁５２内方の頂板５１裏面より垂設した内周壁５３の下端部をガイド筒１２の外周上端部位置に垂下している。また、縦筒５０の上端に基端を開口したノズル５４を、前方へ突設し、その先端に吐出口５５を開口している。更に、吐出ヘッドＣ４の下面としての縦筒５０の下面の外周縁より弁座用筒部５６を垂設し、弁座用筒部５６とステムＣ２外周との間に環状凹部５７を画成している。また、環状凹部５７直上の縦筒５０内面には、下端を環状凹部５７の上端に開口し、上端をステムＣ２直上に開口した縦凹溝５８を縦設している。そして、この縦凹溝５８内、環状凹部５７内、ステムＣ２と筒状弁部４５との間とで、空気用シリンダ２０内からステムＣ２内に連通する空気通路ｐを構成している。また、縦筒５０内の上部にはリブ５９を突設している。 In the discharge head C4, a vertical cylinder 50 in which an inner peripheral lower end is fitted to the outer peripheral upper end of the stem C2 is suspended from the back surface of the top plate 51, and an outer peripheral wall 52 is suspended from the peripheral edge of the top plate 51. The lower end portion of the inner peripheral wall 53 suspended from the back surface of the top plate 51 is suspended at the position of the outer peripheral upper end portion of the guide tube 12. Further, a nozzle 54 having a base end opened at the upper end of the vertical cylinder 50 is projected forward, and a discharge port 55 is opened at the tip thereof. Further, a valve seat tube portion 56 is suspended from the outer peripheral edge of the lower surface of the vertical tube 50 as the lower surface of the discharge head C4, and an annular recess 57 is defined between the valve seat tube portion 56 and the outer periphery of the stem C2. ing. Further, on the inner surface of the vertical cylinder 50 immediately above the annular recess 57, there is provided a longitudinal groove 58 having a lower end opened at the upper end of the annular recess 57 and an upper end opened immediately above the stem C2. An air passage p that communicates from the air cylinder 20 to the stem C2 is formed in the longitudinal groove 58, the annular recess 57, and between the stem C2 and the tubular valve portion 45. Further, a rib 59 projects from the upper part in the vertical cylinder 50.
そして、空気用ピストンＣ３は、上部係止部４８上に弁座用筒部５６の下端が当接する状態から、下部係止部３８上に筒状弁部４５の下端が当接する状態までの、筒状弁部４５のステムＣ２に対する相対的上下動が可能に構成している。第１実施例では、上部係止部４８である隔壁４６上の各支持突起４９上面に、弁座用筒部５６下面が当接した状態から、下部係止部３８である係止凸部３９の上面に、筒状弁部４５の下端が当接した状態までの間を、ステムＣ２に対して相対的な上下動が可能に空気用ピストンＣ３を装着している。そして、ステムＣ２と筒状弁部４５との間に、空気用シリンダ２０内から環状凹部５７内に連通し、空気用シリンダ２０内からステムＣ２内へ連通する空気通路ｐを構成する通気路を備えている。 And, the piston C3 for air from the state where the lower end of the valve seat cylinder part 56 contacts the upper locking part 48 to the state where the lower end of the cylindrical valve part 45 contacts the lower locking part 38, The tubular valve portion 45 is configured to be able to move up and down relative to the stem C2. In the first embodiment, from the state in which the lower surface of the valve seat tube portion 56 is in contact with the upper surface of each support protrusion 49 on the partition wall 46 that is the upper locking portion 48, the locking convex portion 39 that is the lower locking portion 38. The piston C3 for air is attached so that the vertical movement relative to the stem C2 can be performed until the lower end of the cylindrical valve portion 45 is in contact with the upper surface of the tube. An air passage that constitutes an air passage p that communicates from the air cylinder 20 to the annular recess 57 and communicates from the air cylinder 20 to the stem C2 between the stem C2 and the tubular valve portion 45. I have.
本発明では、筒状弁部４５の上端部と、弁座用筒部５６の内周面とで、作動部材Ｃの下降時に閉塞し、作動部材Ｃの上昇時に開弁して外部と空気用シリンダ２０内を連通する外気導入弁Ｖ２を構成している。第１実施例では、弁座用筒部５６の内周面上部を小径の外気導入弁用の弁座６０に形成するとともに、テーパ部６１を介して、内周面下部を大径部６２に形成し、筒状弁部４５のステムＣ２に対する最上昇状態で、筒状弁部４５の上端部が外気導入弁用の弁座６０に摺動可能に嵌合し、筒状弁部４５のステムＣ２に対する最下降状態で、筒状弁部４５の上端部が大径部６２位置に相対下降して外部と空気用シリンダ２０内とが連通する如く構成している。従って、外気導入弁Ｖ２は、下降した作動部材Ｃが上昇する際に負圧となった空気用シリンダ２０内に外気を導入する。 In the present invention, the upper end portion of the tubular valve portion 45 and the inner peripheral surface of the valve seat tubular portion 56 are closed when the operating member C is lowered, and are opened when the operating member C is raised to open the outside and the air. An outside air introduction valve V2 communicating with the inside of the cylinder 20 is configured. In the first embodiment, the upper portion of the inner peripheral surface of the valve seat tube portion 56 is formed in the valve seat 60 for a small-diameter outside air introduction valve, and the lower portion of the inner peripheral surface is formed into the large diameter portion 62 via the taper portion 61. The upper end portion of the tubular valve portion 45 is slidably fitted into the valve seat 60 for the outside air introduction valve in a state where the tubular valve portion 45 is in the highest position with respect to the stem C2, and the stem of the tubular valve portion 45 is formed. In the lowest position with respect to C2, the upper end portion of the cylindrical valve portion 45 is relatively lowered to the position of the large diameter portion 62 so that the outside communicates with the inside of the air cylinder 20. Therefore, the outside air introduction valve V2 introduces outside air into the air cylinder 20 that has become negative pressure when the lowered operating member C rises.
装着筒部材Ｃ５は、内部に起泡部材Ｃ６を嵌合して、上部を吐出ヘッドＣ４の縦筒５０内に、下部をステムＣ２内上端部に嵌着している。第１実施例では、縦筒５０内周に嵌着した上部装着筒部６５の下端より、フランジ６６を介してステムＣ２内上端部に嵌着した下部装着筒部６７を垂設し、下部装着筒部６７の下端部には、中央に連通窓を開口して延設したフランジ状の底板６８を備え、また、フランジ状の底板６８下面よりステムＣ２内周に垂下筒６９を垂設している。また、フランジ６６の下面から下部装着筒部６７の外面を縦断する隙間用リブ７０を周方向複数突設しており、隙間用リブ７０を対応するステムＣ２の上面及び内面に当接して、フランジ６６及び下部装着筒部６７とステムＣ２との間に、ステムＣ２上方の縦筒５０内面に開口した空気通路ｐからステムＣ２内に連通する通気路を設けて装着している。 The mounting cylinder member C5 has a foaming member C6 fitted therein, and the upper part is fitted into the vertical cylinder 50 of the ejection head C4 and the lower part is fitted to the upper end part in the stem C2. In the first embodiment, the lower mounting cylinder portion 67 fitted to the upper end portion in the stem C2 is suspended from the lower end of the upper mounting cylinder portion 65 fitted to the inner periphery of the vertical cylinder 50, so that the lower mounting is performed. At the lower end of the cylindrical portion 67, a flange-shaped bottom plate 68 is provided with a communication window opened at the center, and a hanging cylinder 69 is suspended from the lower surface of the flange-shaped bottom plate 68 on the inner periphery of the stem C2. Yes. A plurality of gap ribs 70 projecting from the lower surface of the flange 66 to the outer surface of the lower mounting cylinder portion 67 are provided in the circumferential direction, and the gap ribs 70 are brought into contact with the upper and inner surfaces of the corresponding stem C2 to 66 and a lower mounting cylinder portion 67 and a stem C2 are provided with an air passage communicating from the air passage p opened in the inner surface of the vertical cylinder 50 above the stem C2 into the stem C2.
そして、空気通路ｐと、液流路が合流する気液混合室ＲをステムＣ２内に画成している。 A gas-liquid mixing chamber R in which the air passage p and the liquid flow path merge is defined in the stem C2.
起泡部材Ｃ６は、メッシュを張設した筒体７６を一対用意して、メッシュ７５が上端及び下端になる如く装着筒部材Ｃ５の上部装着筒部６５内に嵌着している。尚、第１実施例では筒体を一対設けているが、メッシュを張設した筒体を一つ嵌着することも、三個以上嵌着することも可能であり、適宜選択することが可能である。 The foaming member C6 is provided with a pair of cylinders 76 with a mesh stretched, and is fitted in the upper mounting cylinder portion 65 of the mounting cylinder member C5 so that the mesh 75 becomes the upper end and the lower end. Although a pair of cylinders are provided in the first embodiment, it is possible to fit one cylinder with a mesh stretched, or three or more cylinders, which can be selected as appropriate. It is.
ポペット弁体Ｄは、下端部外面に、それぞれ液用シリンダ２１の係止リブ２５間に位置させる、周方向複数の係止突部８０を突設しており、液用シリンダ２１内からステムＣ２内下部に至る長さを有しており、吸込み弁用の弁座２２と下面が当接する位置から、各係止突部８０がコイルスプリングｓ下面に当接する位置までの上下動が可能に装着している。各係止突部８０上方は、下部を大径部に上部を小径部に形成しており、小径部の上端にはテーパ筒状に拡開する逆止弁体８１を形成し、この逆止弁体８１と逆止弁用の弁座３２とで逆止弁Ｖ３を形成している。また、ポペット弁体Ｄの下端部と吸込み弁用の弁座２２とで吸込み弁Ｖ４を構成している。 The poppet valve body D is provided with a plurality of circumferentially extending locking projections 80 positioned between the locking ribs 25 of the liquid cylinder 21 on the outer surface of the lower end portion, and the stem C2 from the liquid cylinder 21 inside. It has a length that extends to the inner and lower parts, and is mounted so that it can move up and down from the position where the valve seat 22 for suction valve and the lower surface abut to the position where each locking projection 80 contacts the lower surface of the coil spring s. doing. The upper part of each locking projection 80 is formed with a lower portion as a large diameter portion and an upper portion as a small diameter portion, and a check valve body 81 that expands into a tapered cylindrical shape is formed at the upper end of the small diameter portion. The valve body 81 and the check valve seat 32 form a check valve V3. The lower end portion of the poppet valve body D and the valve seat 22 for the suction valve constitute a suction valve V4.
尚、図１に二点鎖線で示す如き、スペーサーＥを着脱可能に装着することも可能である。スペーサーＥの存在で、不用意な作動部材Ｃの押し下げを防止することができる。 In addition, it is also possible to attach the spacer E so that attachment or detachment is possible as shown by a two-dot chain line in FIG. The presence of the spacer E can prevent the actuating member C from being pressed inadvertently.
上記泡吐出器１は、図１の状態から吐出ヘッドＣ４を押し下げると、空気用ピストンＣ３がステムＣ２に対して相対的に上昇して外気導入弁Ｖ２が閉じる。図１に於ける外気導入弁Ｖ２は、図２の拡大図でより明らかな如く、当初筒状弁部４５の上端部は弁座用筒部５６の大径部６２に位置し、外気導入弁Ｖ２が開いた状態にあるが、吐出ヘッドＣ４を押し下げると、空気用ピストンＣ３が止まった状態でステムＣ２及び吐出ヘッドＣ４が下降し、筒状弁部４５がステムＣ２に対し相対的に上昇して、図３に拡大図で示す如く、その先端部がテーパ部６１を介して外気導入弁用の弁座６０内面に摺動可能に嵌合し、外気導入弁Ｖ２が閉塞する。外気導入弁Ｖ２が閉塞された空気用シリンダ２０は、上部係止部４８に当接する弁座用筒部５６により押し下げられる。 When the foam discharger 1 pushes down the discharge head C4 from the state of FIG. 1, the air piston C3 rises relative to the stem C2 and the outside air introduction valve V2 closes. As apparent from the enlarged view of FIG. 2, the outside air introduction valve V2 in FIG. 1 is initially positioned at the large diameter portion 62 of the valve seat cylinder portion 56 so that the outside air introduction valve 45 Although V2 is in an open state, when the discharge head C4 is pushed down, the stem C2 and the discharge head C4 are lowered while the air piston C3 is stopped, and the cylindrical valve portion 45 is raised relative to the stem C2. Then, as shown in an enlarged view in FIG. 3, the front end of the front end portion is slidably fitted to the inner surface of the valve seat 60 for the outside air introduction valve via the tapered portion 61, and the outside air introduction valve V2 is closed. The air cylinder 20 with the outside air introduction valve V <b> 2 closed is pushed down by the valve seat cylinder portion 56 that contacts the upper locking portion 48.
また、下降する空気用ピストンＣ３により空気用シリンダ２０内の空気が加圧されて空気通路ｐを介して気液混合室Ｒ内に導入される。一方、液用シリンダ２１が下降してポペット弁体Ｄを吸込み弁用の弁座２２に当接させるまで下降させるとともに、ポペット弁体ＤがステムＣ２に対して相対的に上昇して逆止弁Ｖ３が開き、液用シリンダ２１内の加圧液を吐出弁Ｖ１を介して気液混合室Ｒに導入させ、ここで気液を混合する。気液混合室Ｒで混合された気液は起泡部材Ｃ６を通過して発泡し、吐出ヘッドＣ４のノズル５４の吐出口５５から外部へ吐出される。 Further, the air in the air cylinder 20 is pressurized by the descending air piston C3 and is introduced into the gas-liquid mixing chamber R through the air passage p. On the other hand, the liquid cylinder 21 is lowered and lowered until the poppet valve body D is brought into contact with the valve seat 22 for the suction valve, and the poppet valve body D is relatively lifted with respect to the stem C2 to check valve. V3 opens, and the pressurized liquid in the liquid cylinder 21 is introduced into the gas-liquid mixing chamber R through the discharge valve V1, where the gas-liquid is mixed. The gas-liquid mixed in the gas-liquid mixing chamber R passes through the foaming member C6 and foams, and is discharged to the outside from the discharge port 55 of the nozzle 54 of the discharge head C4.
吐出ヘッドＣ４の押圧を解除すると、コイルスプリングｓの付勢力により作動部材Ｃが上昇し、その際空気用ピストンＣ３がステムＣ２に対して相対的に下降して外気導入弁Ｖ２が開き、空気用シリンダ２０内の負圧化によって外気が空気用シリンダ２０内に導入される。作動部材Ｃの最下降位置に於ける筒状弁部４５は図３と同様の外気導入弁用の弁座６０内面に摺動可能に嵌合しているが、作動部材Ｃの上昇により空気用ピストンＣ３が止まった状態でステムＣ２及び吐出ヘッドＣ４が上昇し、筒状弁部４５がステムＣ２に対して相対的に下降して、その先端部が図２と同様の大径部６２に位置し、外気導入弁Ｖ２が開放され、矢印で示す如く外気が外気導入弁Ｖ２を介して、ステムＣ２と筒状弁部４５との間、通気用凹溝４０を介して空気用シリンダ２０内に導入される。外気導入弁Ｖ２が開放された空気用シリンダ２０は下部係止部３８により押し上げられる。 When the pressure of the discharge head C4 is released, the actuating member C is lifted by the biasing force of the coil spring s. At this time, the air piston C3 is lowered relative to the stem C2, and the outside air introduction valve V2 is opened. The outside air is introduced into the air cylinder 20 by the negative pressure in the cylinder 20. The cylindrical valve portion 45 at the lowermost position of the operating member C is slidably fitted to the inner surface of the valve seat 60 for the outside air introduction valve similar to that shown in FIG. With the piston C3 stopped, the stem C2 and the discharge head C4 are raised, the tubular valve portion 45 is lowered relative to the stem C2, and the tip thereof is positioned at the large diameter portion 62 similar to FIG. Then, the outside air introduction valve V2 is opened, and outside air enters the air cylinder 20 through the outside air introduction valve V2, between the stem C2 and the tubular valve portion 45, and through the ventilation concave groove 40 as indicated by an arrow. be introduced. The air cylinder 20 with the outside air introduction valve V2 opened is pushed up by the lower locking portion 38.
一方、ステムＣ２の上昇によりポペット弁体Ｄは、逆止弁Ｖ３と各縦突条３７との摩擦力で上昇し、吸込み弁Ｖ４が開いて負圧化した液用シリンダ２１内に容器体１００内の液が導入され、その際吐出弁Ｖ１は閉じる。ポペット弁体Ｄはその係止突部８０がコイルスプリングｓの下面に当接するまで上昇するが、その後はステムＣ２に対して、逆止弁体８１が逆止弁用の弁座３２に当接するまで、相対的に下降する。 On the other hand, the poppet valve body D rises due to the frictional force between the check valve V3 and each vertical protrusion 37 due to the rise of the stem C2, and the container body 100 is placed in the liquid cylinder 21 in which the suction valve V4 is opened to be negative pressure. The liquid inside is introduced, and the discharge valve V1 is closed at that time. The poppet valve body D rises until its locking projection 80 comes into contact with the lower surface of the coil spring s. Thereafter, the check valve body 81 comes into contact with the valve seat 32 for the check valve with respect to the stem C2. Until it falls relatively.
図４及び図６は本発明の泡吐出器の第２実施例を示す。 4 and 6 show a second embodiment of the foam dispenser of the present invention.
第２実施例では、第１実施例に於いて、外気導入弁Ｖ２部分の構造が一部相違する。第２実施例に於ける下部係止部３８は、フランジ状の係止凸部３９として構成している。但し、第２実施例では、空気用ピストンＣ３の筒状弁部４５の下端が下部係止部３８に当接した状態で、筒状弁部４５とステムＣ２との間と、空気用シリンダ２０内との、通気が可能な通気手段を、空気用シリンダ２０の筒状弁部４５下端部に通気用切欠き４２を設けて構成している。また、弁座用筒部５６の大径部６２に通気用窓６３を設けている。その他の構成は第１実施例と同様であるため、同符号を付して、説明を省略する。 The second embodiment is partially different from the first embodiment in the structure of the outside air introduction valve V2. The lower locking portion 38 in the second embodiment is configured as a flange-shaped locking projection 39. However, in the second embodiment, with the lower end of the tubular valve portion 45 of the air piston C3 in contact with the lower locking portion 38, between the tubular valve portion 45 and the stem C2, and the air cylinder 20 The ventilation means that can ventilate the inside is configured by providing a notch 42 for ventilation at the lower end of the cylindrical valve portion 45 of the cylinder 20 for air. Further, a ventilation window 63 is provided in the large diameter portion 62 of the valve seat tube portion 56. Since other configurations are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.
上記泡吐出器１は、図４の状態から吐出ヘッドＣ４を押し下げると、空気用ピストンＣ３がステムＣ２に対して相対的に上昇して外気導入弁Ｖ２が閉じる。図４に於ける外気導入弁Ｖ２は、図５の拡大図でより明らかな如く、当初筒状弁部４５の上端部は弁座用筒部５６の大径部６２に位置し、外気導入弁Ｖ２が開いた状態にあるが、吐出ヘッドＣ４を押し下げると、空気用ピストンＣ３が止まった状態でステムＣ２及び吐出ヘッドＣ４が下降し、筒状弁部４５がステムＣ２に対し相対的に上昇して、図６に拡大図で示す如く、その先端部がテーパ部６１を介して外気導入弁用の弁座６０内面に摺動可能に嵌合し、外気導入弁Ｖ２が閉塞する。外気導入弁Ｖ２が閉塞された空気用シリンダ２０は、上部係止部４８に当接する弁座用筒部５６により押し下げられる。 When the foam discharger 1 pushes down the discharge head C4 from the state of FIG. 4, the air piston C3 rises relative to the stem C2, and the outside air introduction valve V2 closes. As apparent from the enlarged view of FIG. 5, the outside air introduction valve V2 in FIG. 4 is initially located at the upper end portion of the tubular valve portion 45 at the large diameter portion 62 of the valve seat tubular portion 56, and the outside air introduction valve. Although V2 is in an open state, when the discharge head C4 is pushed down, the stem C2 and the discharge head C4 are lowered while the air piston C3 is stopped, and the cylindrical valve portion 45 is raised relative to the stem C2. Then, as shown in an enlarged view in FIG. 6, the tip end portion is slidably fitted to the inner surface of the valve seat 60 for the outside air introduction valve via the taper portion 61, and the outside air introduction valve V2 is closed. The air cylinder 20 with the outside air introduction valve V <b> 2 closed is pushed down by the valve seat cylinder portion 56 that contacts the upper locking portion 48.
吐出ヘッドＣ４の押圧を解除すると、コイルスプリングｓの付勢力により作動部材Ｃが上昇し、その際空気用ピストンＣ３がステムＣ２に対して相対的に下降して外気導入弁Ｖ２が開き、空気用シリンダ２０内の負圧化によって外気が空気用シリンダ２０内に導入される。作動部材Ｃの最下降位置に於ける筒状弁部４５は図６と同様に外気導入弁用の弁座６０内面に摺動可能に嵌合しているが、作動部材Ｃの上昇により空気用ピストンＣ３が止まった状態でステムＣ２及び吐出ヘッドＣ４が上昇し、筒状弁部４５がステムＣ２に対して相対的に下降して、図５と同様の大径部６２に位置し、外気導入弁Ｖ２が開放され、矢印で示す如く外気が外気導入弁Ｖ２を介して、ステムＣ２と筒状弁部４５との間、通気用切欠き４２を介して空気用シリンダ２０内に導入される。外気導入弁Ｖ２が開放された空気用シリンダ２０は下部係止部３８により押し上げられる。 When the pressure of the discharge head C4 is released, the actuating member C is lifted by the biasing force of the coil spring s. At this time, the air piston C3 is lowered relative to the stem C2, and the outside air introduction valve V2 is opened. The outside air is introduced into the air cylinder 20 by the negative pressure in the cylinder 20. The cylindrical valve portion 45 at the lowest position of the operating member C is slidably fitted to the inner surface of the valve seat 60 for the outside air introduction valve as in FIG. With the piston C3 stopped, the stem C2 and the discharge head C4 are raised, the cylindrical valve portion 45 is lowered relative to the stem C2, and is located at the large diameter portion 62 similar to FIG. The valve V2 is opened, and outside air is introduced into the air cylinder 20 between the stem C2 and the tubular valve portion 45 and through the ventilation notch 42 through the outside air introduction valve V2, as indicated by an arrow. The air cylinder 20 with the outside air introduction valve V2 opened is pushed up by the lower locking portion 38.
１：泡吐出器
Ａ：装着キャップ
１０…周壁、１１…頂壁、１２…ガイド筒
Ｂ：シリンダ部材
２０…空気用シリンダ、２１…液用シリンダ、２２…吸込み弁用の弁座、
２３…パイプ嵌合筒、２４…吸上げ用のパイプ、２５…係止リブ、２６…係止突条
Ｃ：作動部材
Ｃ１：液用ピストン
３０…嵌合筒部、３１…摺動部、３２…逆止弁用の弁座
Ｃ２：ステム
３５…吐出弁用の弁座、３６…吐出弁体、３７…縦突条、３８…下部係止部、
３９…係止凸部、４０…通気用凹溝、４１…縦突条
Ｃ３：空気用ピストン
４２…通気用切欠き、４５…筒状弁部、４６…階段状の隔壁、４７…摺動部、
４８…上部係止部、
４９…支持突起
Ｃ４：吐出ヘッド
５０…縦筒、５１…頂板、５２…外周壁、５３…内周壁、５４…ノズル、
５５…吐出口、５６…弁座用筒部、５７…環状凹部、５８…縦凹溝、５９…リブ、
６０…外気導入弁用の弁座、６１…テーパ部、６２…大径部、６３…通気用窓
Ｃ５：：装着筒部材
６５…上部装着筒部、６６…フランジ、６７…下部装着筒部、６８…底板、
６９…垂下筒、７０…隙間用リブ
Ｃ６：起泡部材
７５…メッシュ、７６…筒体
Ｄ：ポペット弁体
８０…係止突部、８１…逆止弁体
Ｅ：スペーサー
Ｖ１：吐出弁
Ｖ２：外気導入弁
Ｖ３：逆止弁
Ｖ４：吸込み弁
ｓ：コイルスプリング
ｐ：空気通路
Ｒ：気液混合室
１００：容器体
１０１…口頸部
1: Foam dispenser A: mounting cap 10 ... peripheral wall, 11 ... top wall, 12 ... guide cylinder B: cylinder member 20 ... air cylinder, 21 ... liquid cylinder, 22 ... valve seat for suction valve,
23 ... Pipe fitting cylinder, 24 ... Pipe for suction, 25 ... Locking rib, 26 ... Locking protrusion C: Actuating member C1: Liquid piston 30 ... Fitting cylinder part, 31 ... Sliding part, 32 ... Valve seat C2 for check valve: Stem 35 ... Valve seat for discharge valve, 36 ... Discharge valve body, 37 ... Vertical protrusion, 38 ... Lower locking part,
DESCRIPTION OF SYMBOLS 39 ... Locking convex part, 40 ... Groove for ventilation, 41 ... Vertical protrusion C3: Piston for air 42 ... Notch for ventilation, 45 ... Cylindrical valve part, 46 ... Stair-like partition, 47 ... Sliding part ,
48 ... upper locking part,
49 ... support projection C4: discharge head 50 ... vertical cylinder, 51 ... top plate, 52 ... outer peripheral wall, 53 ... inner peripheral wall, 54 ... nozzle,
55 ... Discharge port, 56 ... Valve seat tube portion, 57 ... Annular recess, 58 ... Vertical groove, 59 ... Rib,
60 ... Valve seat for outside air introduction valve, 61 ... Tapered portion, 62 ... Large diameter portion, 63 ... Ventilation window C5 :: Mounting cylinder member 65 ... Upper mounting cylinder portion, 66 ... Flange, 67 ... Lower mounting cylinder portion, 68 ... bottom plate,
69 ... drooping cylinder, 70 ... gap rib C6: foaming member 75 ... mesh, 76 ... cylinder D: poppet valve body 80 ... locking projection, 81 ... check valve body E: spacer V1: discharge valve V2: Outside air introduction valve V3: Check valve V4: Suction valve s: Coil spring p: Air passage R: Gas-liquid mixing chamber 100: Container body 101.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012169261A JP5903752B2 (en) | 2012-07-31 | 2012-07-31 | Foam dispenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012169261A JP5903752B2 (en) | 2012-07-31 | 2012-07-31 | Foam dispenser |
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| Publication Number | Publication Date |
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| JP2014028620A true JP2014028620A (en) | 2014-02-13 |
| JP5903752B2 JP5903752B2 (en) | 2016-04-13 |
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| JP2012169261A Active JP5903752B2 (en) | 2012-07-31 | 2012-07-31 | Foam dispenser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016101949A (en) * | 2014-11-28 | 2016-06-02 | 株式会社吉野工業所 | Liquid discharge container |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1847327A1 (en) * | 2005-11-25 | 2007-10-24 | Yih Tai Glass Industrial Co., Ltd. | Foam dispenser comprising a precompression liquid pump |
| WO2008045820A2 (en) * | 2006-10-10 | 2008-04-17 | Continentalafa Dispensing Company | Rotating collar and locking and venting closure connector for an air foaming pump dispenser |
| JP2010265009A (en) * | 2009-05-15 | 2010-11-25 | Mitani Valve Co Ltd | Foam discharging pump mechanism and pump type product with foam discharging mechanism equipped with the same |
-
2012
- 2012-07-31 JP JP2012169261A patent/JP5903752B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1847327A1 (en) * | 2005-11-25 | 2007-10-24 | Yih Tai Glass Industrial Co., Ltd. | Foam dispenser comprising a precompression liquid pump |
| WO2008045820A2 (en) * | 2006-10-10 | 2008-04-17 | Continentalafa Dispensing Company | Rotating collar and locking and venting closure connector for an air foaming pump dispenser |
| JP2010265009A (en) * | 2009-05-15 | 2010-11-25 | Mitani Valve Co Ltd | Foam discharging pump mechanism and pump type product with foam discharging mechanism equipped with the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016101949A (en) * | 2014-11-28 | 2016-06-02 | 株式会社吉野工業所 | Liquid discharge container |
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