JP4315278B2 - Depressing head and pump equipped with the head - Google Patents

Depressing head and pump equipped with the head Download PDF

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Publication number
JP4315278B2
JP4315278B2 JP2003339591A JP2003339591A JP4315278B2 JP 4315278 B2 JP4315278 B2 JP 4315278B2 JP 2003339591 A JP2003339591 A JP 2003339591A JP 2003339591 A JP2003339591 A JP 2003339591A JP 4315278 B2 JP4315278 B2 JP 4315278B2
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valve member
pressing
stem
pressing plate
pushed down
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JP2005103424A (en
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和仁 桑原
岸　　隆生
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1053—Actuation means combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation

Description

本発明は押下ヘッド及び該ヘッドを装着したポンプに関する。   The present invention relates to a pressing head and a pump equipped with the head.

ポンプの押下ヘッドとして、上方付勢状態で押し込み可能に突設したステムの上端に嵌着して使用するものが知られている。これらは押し込みにより装着した容器体内の液をステムを介して噴出口より噴出する如く構成したものであり、一般的な押下ヘッドでは、ステムに嵌着させる縦筒と、該縦筒上部に基端を開口して先端の噴出口に連通する横筒とを備えている。また、この様な単純構成のものを改良し、噴出口を閉塞するように弾性体で付勢させた弁部材を備え、押し下げ時に噴出口が開放状態となる如く構成したものも提案されている（例えば、特許文献１参照）。   As a pump pressing head, there is known a pumping head that is used by being fitted to the upper end of a stem protruding so as to be pushed in an upward biased state. These are configured so that the liquid in the container mounted by pushing is ejected from the ejection port via the stem. In a general pressing head, a vertical cylinder fitted to the stem and a base end on the upper part of the vertical cylinder are arranged. And a horizontal tube that communicates with the jet outlet at the tip. Further, there has been proposed an improvement of such a simple configuration, including a valve member urged by an elastic body so as to close the ejection port, and configured so that the ejection port is opened when pushed down. (For example, refer to Patent Document 1).

この押下ヘッドは、ポンプのステムに嵌着して使用されるもので、下端を開口した有頂筒状のカバー内に於いて、ステムに嵌着した装着筒上端にステム内と連通する横筒を延設、横筒内にコイルスプリングにより前方付勢された弁部材を配置し、その先端を周壁前面に開口した噴出口に圧接して閉塞している。また、頂壁裏面より周壁と同心円状に垂設したスカート部の後部上部には、横筒後部より突出する弁部材後端部を挟持するかたちで舌片を弾性揺動可能に画成しており、舌片内面下部には突起を突設している。そして、ヘッドを押し下げた際に突起がポンプの後部周縁部上面に当接して舌片の上部が後方へ弾性的に傾斜変形され、それに伴って弁部材が後方へ移行し、噴出口が開口する如く構成している。   This pressing head is used by being fitted to the stem of the pump, and in a top-like cylindrical cover having an open lower end, a horizontal cylinder communicating with the inside of the stem at the upper end of the mounting cylinder fitted to the stem. The valve member urged forward by a coil spring is disposed in the horizontal cylinder, and the tip of the valve member is pressed against and closed by a jet port opened in the front surface of the peripheral wall. In addition, a tongue piece is defined so as to be elastically swingable in the form of a valve member rear end protruding from the rear side of the horizontal cylinder at the rear upper part of the skirt part suspended concentrically with the peripheral wall from the top wall rear surface. A projection is provided on the lower part of the inner surface of the tongue piece. When the head is pushed down, the protrusion comes into contact with the upper surface of the rear peripheral edge of the pump, and the upper part of the tongue piece is elastically inclined and deformed rearward, and the valve member moves rearward accordingly, and the jet port opens. It is configured as follows.

上記従来のヘッドは非使用時に噴出口を常時閉塞しているため、その内部の収納液が固化したりする不都合がないものであるが、液を噴出させる際のヘッドの押し下げが固くなり、押し下げ難くなる傾向がある。また、弁部材の操作を上記した如きヘッドに設けた舌片とポンプの一部とで構成しているため、ヘッド自体及び装着するポンプの形態に制限が著しく、汎用性に乏しいという問題点もある。   Since the conventional head always closes the ejection port when not in use, there is no inconvenience that the liquid stored inside solidifies, but the head is pressed down hard when the liquid is ejected. It tends to be difficult. Further, since the operation of the valve member is constituted by the tongue piece provided on the head as described above and a part of the pump, the head itself and the form of the pump to be mounted are remarkably limited, and there is a problem that the versatility is poor. is there.

この様な点を考慮して本出願人は上記不都合を解消した優れた押下ヘッドを既に提案している（特許文献２参照）。   In consideration of such points, the present applicant has already proposed an excellent pressing head that has solved the above disadvantages (see Patent Document 2).

上記ポンプの押下ヘッドは、ステム上端部に嵌着させた装着筒を頂板下面より垂設するとともに、ステム内と連通する摺動筒を頂板上方へ立設した装着筒部材と、摺動筒外周に摺動下降可能に嵌合させたシリンダ上方に、先端に噴出口を開口した弁室を備えるとともに、装着筒部材に対して押し下げ可能に設けた本体と、弁室内周に後部外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口を閉塞し、且つ、シリンダ内と連通する連絡口より噴出口に至る流路を画成してなる弁部材と、弁部材後端部に上端を連結させるとともに、下端部を上記頂板上面に当接係止させ、且つ、装着筒部材に対する本体の押し下げ時に弁部材を後方へ引き出す如く揺動可能に枢着した梃部材を備え、ステムに対する本体の押し下げ抗力がステム自体の押し下げ抗力より小である如く構成した。
特開平９−１５５２５４号公報 特開２００２−３２６０４４号公報 The pump pressing head includes a mounting cylinder member that is suspended from the lower surface of the top plate, and a mounting cylinder member that is erected above the top plate, and an outer periphery of the sliding cylinder. A valve chamber with a spout opening at the tip is provided above the cylinder that is slidably fitted to the cylinder, and a main body that can be pushed down with respect to the mounting cylinder member, and a rear outer periphery that slides around the valve chamber. And a valve member that closes the jet port in a forward-biased state and that defines a flow path from the communication port communicating with the inside of the cylinder to the jet port, and a valve member rear end An upper end is connected, a lower end is contacted and locked to the upper surface of the top plate, and a pivot member pivotally attached so that the valve member is pulled out rearward when the main body is pushed down with respect to the mounting cylinder member is provided. The push-down resistance of the main body It was as configuration is smaller than the lower drag to.
JP-A-9-155254 JP 2002-326044 A

上記特許文献２の発明の押下ヘッドは、液噴出後の液切れが良く、ヘッド内での液詰まり、固化等の虞がなく、しかも押し下げが固くなることなく容易に押し下げて噴出することができ、ポンプの形態等に左右されずに使用できるため汎用性にも優れ、多くの種類のポンプに適用できる等の種々の効果を発揮する優れたものである。本発明は、この様な従来効果を発揮できるとともに、より構造を簡単に、部材数を少なく構成できる押下ヘッドを提案するものである。また、この様な押下ヘッドを装着したポンプであって、弁部材の開閉を規則正しく、適正時に行えて更に円滑な液の注出を行えるポンプを提案するものである。   The pressing head according to the invention of the above-mentioned Patent Document 2 has good drainage after jetting liquid, there is no risk of clogging and solidification in the head, and it can be pushed down and ejected easily without becoming hard to push down Since it can be used regardless of the form of the pump, etc., it is excellent in versatility and exhibits various effects such as being applicable to many types of pumps. The present invention proposes a push-down head that can exhibit such conventional effects and can be configured more simply and with a reduced number of members. In addition, the present invention proposes a pump equipped with such a pressing head, in which the valve member can be opened and closed regularly and at an appropriate time so that liquid can be smoothly poured out.

第１の手段として、以下の通り構成した。即ち、上方付勢状態で押し下げ可能にステム２を起立したポンプに装着する押下ヘッドであって、先端に噴出口10を開口した弁室Ｒを備えた本体７と、上記弁室Ｒ内周に外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口10を閉塞し、且つ、ステム２内と連通する連絡口14より噴出口10に至る流路ｐを画成してなる弁部材８と、該弁部材を作動させて上記噴出口10を開閉する開閉レバー９とを備え、上記開閉レバー９は、上記本体７上に上下揺動可能に枢着した押圧板25と、該押圧板より垂設して上記弁部材８の後端部に連繋させるとともに、上記押圧板25の押し下げ時に上記弁部材８をその前方付勢力に抗して後方へ押圧移行させる押圧作用部26とからなり、上記押圧作用部26が、上記押圧板25下面より垂設するとともに、上記押圧板25の押し下げ時に弁部材８後端部に側面視円弧状の作用面ｆを摺動して弁部材８を後方へ押圧移行させるカム状突起27であることを特徴とする押下ヘッド。 The first means is configured as follows. That is, it is a pressing head that is attached to a pump in which the stem 2 is erected so that it can be pushed down in an upward biased state, and includes a main body 7 having a valve chamber R having a spout 10 open at the tip, A valve formed by slidably fitting the outer periphery, closing the jet port 10 in a forward biased state, and defining a flow path p from the communication port 14 communicating with the inside of the stem 2 to the jet port 10 A member 8 and an opening / closing lever 9 that opens and closes the nozzle 10 by operating the valve member. The opening / closing lever 9 is pivotally mounted on the main body 7 so as to be swingable up and down; A pressing action portion 26 that is suspended from the pressing plate and is connected to the rear end portion of the valve member 8 and that pushes the valve member 8 backward against its forward biasing force when the pressing plate 25 is pushed down; The pressing action portion 26 is suspended from the lower surface of the pressing plate 25, and the pressing plate 25 A pressing head comprising a cam-like protrusion 27 that slides the valve member 8 to the rear by sliding an arcuate working surface f in a side view at the rear end of the valve member 8 when the valve member 8 is pushed down.

第２の手段として、以下の通り構成した。即ち、上方付勢状態で押し下げ可能に起立したステム２の上端に押下ヘッド１を装着したポンプであって、上記押下ヘッド１は、先端に噴出口10を開口した弁室Ｒを備えた本体７と、上記弁室Ｒ内周に外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口10を閉塞し、且つ、ステム２内と連通する連絡口14より噴出口10に至る流路ｐを画成してなる弁部材８と、該弁部材を作動させて上記噴出口10を開閉する開閉レバー９とを備え、上記開閉レバー９は、上記本体７上に上下揺動可能に枢着した押圧板25と、該押圧板より垂設して上記弁部材８の後端部に連繋させるとともに、上記押圧板25の押し下げ時に上記弁部材８をその前方付勢力に抗して後方へ押圧移行させる押圧作用部26とからなり、上記押圧作用部26が、上記押圧板25下面より垂設するとともに、上記押圧板25の押し下げ時に弁部材８後端部に側面視円弧状の作用面ｆを摺動して弁部材８を後方へ押圧移行させるカム状突起27であり、上記噴出口10の開放後ステム２が押し下げられる如く構成してなることを特徴としたポンプ。





The second means is configured as follows. That is, it is a pump in which a pressing head 1 is mounted on the upper end of a stem 2 standing upright so that it can be pushed down in an upward biased state. The outer periphery of the valve chamber R is slidably fitted to the inner periphery of the valve chamber R, the outlet 10 is closed in a forward-biased state, and the flow from the communication port 14 communicating with the inside of the stem 2 reaches the outlet 10. A valve member 8 that defines a path p; and an opening / closing lever 9 that opens and closes the jet port 10 by operating the valve member. The opening / closing lever 9 is swingable up and down on the main body 7. A pivoted pressing plate 25 is suspended from the pressing plate so as to be connected to the rear end portion of the valve member 8, and when the pressing plate 25 is pushed down, the valve member 8 is moved backward against its forward biasing force. made from the pressing action portion 26 for thereby pressing shift to, the pressing action portion 26, from the pressing plate 25 lower surface And a cam-like protrusion 27 that slides the arc-shaped working surface f in a side view at the rear end portion of the valve member 8 and pushes the valve member 8 backward when the pressing plate 25 is pushed down. A pump characterized in that the stem 2 is configured to be pushed down after the opening of 10.





本発明の押下ヘッド１は、先端に噴出口10を開口した弁室Ｒ内周に外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口10を閉塞し、且つ、ステム２内と連通する連絡口14より噴出口10に至る流路ｐを画成してなる弁部材８を備え、また、本体７上に上下揺動可能に枢着した押圧板25と、該押圧板より垂設して弁部材８の後端部に連繋させるとともに、押圧板25の押し下げ時に弁部材８をその前方付勢状態に抗して後方へ押圧移行させる押圧作用部26とからなる開閉レバー９を備えているため、押下ヘッド１内の液詰まり、固化等の虞がない。また、液噴出後の液切れが良く、しかも押し下げが固くなることなく容易に押し下げすることができ、ポンプの形態に左右されずに使用できるため汎用性にも優れ、多くの種類のポンプに適用できるものである。更に、構造が簡単で、極力部材数を減ずることができるものである。また、本発明のポンプは、弁部材８の開閉を規則正しく、適正時に行えて更に円滑な液の注出を行えるものである。   The press-down head 1 of the present invention has an outer periphery slidably fitted to the inner periphery of the valve chamber R having a spout 10 opened at the tip, closes the spout 10 in a forward biased state, A pressure plate 25 that defines a flow path p extending from the communication port 14 communicating with the jet port 10 to the jet port 10, and is pivotally mounted on the main body 7 so as to be vertically swingable. An opening / closing lever 9 comprising a pressing action portion 26 which is suspended and linked to the rear end portion of the valve member 8 and which causes the valve member 8 to be pressed and moved backward against its forward biased state when the pressing plate 25 is pushed down. Therefore, there is no risk of liquid clogging or solidification in the pressing head 1. In addition, it has good liquidity after being ejected, and can be easily pushed down without becoming hard to push down. It can be used regardless of the form of the pump, so it is versatile and applicable to many types of pumps. It can be done. Furthermore, the structure is simple and the number of members can be reduced as much as possible. Moreover, the pump of this invention can perform the opening and closing of the valve member 8 regularly and at an appropriate time, and can perform the smooth liquid discharge | emission.

本発明の押下ヘッド１は、上方付勢状態で押し下げ可能にステム２を起立したポンプＡに装着するものであり、該ポンプＡは上記ステム２の上端に押下ヘッド１を嵌着して上下動させ、装着した容器体内の液を噴出する如く構成したものであれば、その具体的構造は従来公知の種々の形態のものを採用できる。図示例では、容器体Ｂの口頸部３に螺着させた装着キャップ４により容器体Ｂ内にシリンダ５を垂下した状態で固定し、シリンダ５内を摺動するピストン（図示せず）を下端に連繋させたステム２の上端に押下ヘッド１を嵌着している。また、シリンダ５上端には外周に螺条を周設した補助キャップ６を嵌着している。その他図示しないが、シリンダ５内には吸込み弁を、ステム２内には吐出弁をそれぞれ設け、シリンダ５下端からは容器体Ｂ内下部に吸い上げ用のパイプを垂下させている。   The pressing head 1 of the present invention is mounted on a pump A in which a stem 2 is erected so as to be able to be pressed down in an upward biased state. The pump A is vertically moved by fitting the pressing head 1 to the upper end of the stem 2. In addition, as long as it is configured so as to eject the liquid in the mounted container body, it is possible to adopt various types of conventionally known specific structures. In the illustrated example, a cylinder (5) is fixed in a state where the cylinder 5 is suspended in the container body B by a mounting cap 4 screwed to the mouth / neck portion 3 of the container body B, and a piston (not shown) sliding inside the cylinder 5 is fixed. The pressing head 1 is fitted to the upper end of the stem 2 connected to the lower end. Further, an auxiliary cap 6 having a thread on the outer periphery is fitted to the upper end of the cylinder 5. Although not shown in the drawings, a suction valve is provided in the cylinder 5 and a discharge valve is provided in the stem 2, and a suction pipe is suspended from the lower end of the cylinder 5 to the lower part of the container body B.

押下ヘッド１は、本体７と、弁部材８と、開閉レバー９とを備えている。本体７は、先端に噴出口10を開口した弁室Ｒを備えている。図示例では、内部を上記弁室Ｒとして形成する横筒11を、その前部を前方へ突出して基板12上に横設するとともに、基板12の下面よりステム２の上端に密嵌させた嵌合筒13を垂設しており、この嵌合筒13の上端に弁室Ｒ内に連通する連絡口14を開口している。また、嵌合筒13外方に同心円状に螺筒15を垂設し、上記補助キャップ６に対して螺合可能に構成し、押下ヘッドの押し下げ状態での係止を可能に構成している。また、基板12周縁部からは周壁16を立設している。更に、横筒11の先端部には噴出口部材17を嵌着固定して噴出口10を開口している。この噴出口部材17は、横筒11内周先端部に後部を密嵌させた筒状をなし、先端部をテーパ状に縮径してその先端を上記噴出口10に形成している。また、内周面に周方向複数のリブ18を突設し弁部材８の安定した前後動を補助している。また、横筒11の後端部には中央部に窓孔19を開口した後壁20を有し、後壁20の前面より二重筒状にシリンダ筒21を突設している。   The pressing head 1 includes a main body 7, a valve member 8, and an opening / closing lever 9. The main body 7 includes a valve chamber R having a jet port 10 opened at the tip. In the illustrated example, a horizontal cylinder 11 that forms the inside of the valve chamber R as described above is placed on the substrate 12 with its front portion protruding forward, and fitted tightly on the upper end of the stem 2 from the lower surface of the substrate 12. A joint tube 13 is provided vertically, and a communication port 14 communicating with the inside of the valve chamber R is opened at the upper end of the fitting tube 13. Further, a concentric screw cylinder 15 is provided outside the fitting cylinder 13 so as to be able to be screwed to the auxiliary cap 6 so that the pressing head can be locked in a depressed state. . A peripheral wall 16 is erected from the peripheral edge of the substrate 12. Further, a spout member 17 is fitted and fixed to the tip of the horizontal cylinder 11 to open the spout 10. The spout member 17 has a cylindrical shape in which the rear portion is closely fitted to the inner peripheral front end portion of the horizontal cylinder 11, and the front end portion is formed in a tapered shape so that the front end is formed in the spout port 10. Further, a plurality of circumferential ribs 18 project from the inner peripheral surface to assist the stable longitudinal movement of the valve member 8. Further, the rear end portion of the horizontal cylinder 11 has a rear wall 20 having a window hole 19 opened at the center, and a cylinder cylinder 21 projects from the front surface of the rear wall 20 in a double cylinder shape.

弁部材８は、上記弁室Ｒ内周に外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口10を閉塞し、且つ、ステム２内と連通する上記連絡口14より噴出口10に至る流路ｐを画成してなるものである。図示例では全体的に棒状をなし、後端部を縮径した小径部8aに形成するとともに、その前方の大径部8b外周後端部にはスカート状のシール部22を突設し、また、小径部8aの後端部に開閉レバー９の後述するカム状突起が摺動する被摺動面を形成する環状突条23を突設している。そして、上記シール部22を上記シリンダ筒21に摺動可能に嵌合させるとともに、該シール部22と上記後壁20との間に介在させたコイルスプリング24により前方に付勢させている。また、大径部8bの先端を噴出口部材17内面に密接させて噴出口10を閉塞し、後端を上記窓孔19より後方へ突出して弁室Ｒ内に前後動可能に装着している。このことにより、上記連絡口14から噴出口10に至る流路ｐを弁室Ｒ内に画成している。   The valve member 8 is fitted to the inner periphery of the valve chamber R so that the outer periphery is slidable, closes the jet port 10 in a forward biased state, and ejects from the communication port 14 communicating with the inside of the stem 2. A flow path p reaching 10 is defined. In the illustrated example, the overall shape is a rod, and the rear end portion is formed into a small diameter portion 8a with a reduced diameter, and a skirt-like seal portion 22 is projected from the outer peripheral rear end portion of the front large diameter portion 8b. An annular ridge 23 is formed on the rear end portion of the small diameter portion 8a so as to form a sliding surface on which a cam-like projection (described later) of the opening / closing lever 9 slides. The seal portion 22 is slidably fitted to the cylinder cylinder 21 and is urged forward by a coil spring 24 interposed between the seal portion 22 and the rear wall 20. Further, the tip of the large diameter portion 8b is brought into close contact with the inner surface of the jet member 17 to close the jet port 10, and the rear end projects rearward from the window hole 19 so as to be movable back and forth in the valve chamber R. . Thus, a flow path p from the communication port 14 to the jet port 10 is defined in the valve chamber R.

開閉レバー９は、上記弁部材８を作動させて上記噴出口10を開閉するもので、この開閉レバー９は、上記本体７上に上下揺動可能に枢着した押圧板25を備え、また、該押圧板25より垂設して上記弁部材８の後端部に連繋させるとともに、上記押圧板25の押し下げ時に上記弁部材８を前方付勢力に抗して後方へ押圧移行させる押圧作用部26を備えている。この押圧作用部26は具体的には種々の形態を採用できるものである。   The open / close lever 9 operates the valve member 8 to open / close the jet port 10. The open / close lever 9 includes a pressing plate 25 pivotally mounted on the main body 7 so as to be swingable up and down. A pressing action portion 26 that is suspended from the pressing plate 25 and is connected to the rear end portion of the valve member 8 and causes the valve member 8 to be pressed and moved backward against the forward biasing force when the pressing plate 25 is pushed down. It has. Specifically, the pressing action part 26 can adopt various forms.

図１乃至図３に示す実施例では、上記押圧作用部26として、上記押圧板25下面より垂設するとともに、上記押圧板25の押し下げ時に弁部材８後端部に作用面ｆを摺動して弁部材８を後方へ押圧移行させるカム状突起27を採用した例である。上記押圧板25は、本体７上面の前部に前部を上下揺動可能に枢着しており、その下面後部所定位置より一対のカム状突起27を突設している。各カム状突起27は、後縁が上記作用面ｆとしての傾斜面をなす側面視三角板状をなし、その作用面ｆ下部を上記環状突条23前面に当接させている。従って、押圧板25はこの状態で本体７との間に押し下げが可能な回動用空間をあけて安定的に支持されている。このカム状突起27は上記傾斜作用面ｆを備えたものに限らず、上記要件を満たせば種々の形状をものを採用でき、例えば、図４に示す如く、作用面ｆが側面視円弧状をなす帯状弯曲面であっても良い。   In the embodiment shown in FIGS. 1 to 3, the pressing action portion 26 is suspended from the lower surface of the pressing plate 25, and the action surface f is slid on the rear end portion of the valve member 8 when the pressing plate 25 is pushed down. This is an example in which a cam-like protrusion 27 that pushes the valve member 8 backward is adopted. The pressing plate 25 is pivotally attached to the front part of the upper surface of the main body 7 so that the front part can swing up and down, and a pair of cam-like projections 27 project from a predetermined position on the rear part of the lower surface. Each cam-like protrusion 27 has a triangular plate shape in a side view in which a rear edge forms an inclined surface as the action surface f, and a lower portion of the action surface f is in contact with the front surface of the annular ridge 23. Therefore, in this state, the pressing plate 25 is stably supported with a rotation space that can be pushed down between the pressing plate 25 and the main body 7. The cam-like protrusion 27 is not limited to the one having the inclined action surface f, and various shapes can be adopted as long as the above requirements are satisfied. For example, as shown in FIG. It may be a belt-like saddle curved surface.

また、この様な押下ヘッド１を備えた本発明ポンプＡは、上記噴出口10の開放後ステム２が押し下げられる如く構成している。この様に構成するためには、基本的にステム２の前方付勢力をステム２の上方付勢力より小さく構成すれば良く、その他、開閉レバー９の回転トルクやその押圧作用部26の摩擦力等の上記構成に関与する要因を考慮して適宜その付勢力を選択すれば良い。この様に構成することにより、液噴出に際して、まず弁部材８が移行して噴出口10が開口した後ステム２の押し下げを行える。尚、この様な構成は、図１の実施例に限らず、他の実施例に於いても採用できる。   Further, the pump A of the present invention having such a pressing head 1 is configured such that the stem 2 is pushed down after the ejection port 10 is opened. In order to configure in this way, the forward urging force of the stem 2 may be basically made smaller than the upward urging force of the stem 2, and the rotational torque of the opening / closing lever 9, the frictional force of the pressing action portion 26, etc. The biasing force may be appropriately selected in consideration of the factors involved in the above configuration. With this configuration, when the liquid is ejected, the stem 2 can be pushed down after the valve member 8 first moves and the ejection port 10 opens. Such a configuration is not limited to the embodiment shown in FIG. 1, but can be adopted in other embodiments.

また、図５及び図６に示す実施例は、押圧板25の後端部を上下揺動可能に枢着した開閉レバー９を備えた例を示す。本実施例では、本体７の後部に突設した一対の支持板28に押圧板25の後端部１を押し下げ可能に枢着しており、その他の構成は図１の実施例と同様である。   The embodiment shown in FIGS. 5 and 6 shows an example in which an opening / closing lever 9 is provided in which the rear end portion of the pressing plate 25 is pivotably pivoted. In the present embodiment, the rear end portion 1 of the pressing plate 25 is pivotally attached to a pair of support plates 28 projecting from the rear portion of the main body 7, and the other configurations are the same as those of the embodiment of FIG. .

上記の如く構成した押下ヘッド１を装着したポンプＡの作用を説明する。図１の状態から開閉レバー９を押し下げると各カム状突起27が下降し、その作用面ｆが環状突条23の前面を摺動して後方へ押圧し、弁部材８をコイルスプリング24の前方付勢力に抗して後方へ移行させ、噴出口10が開口する。次いでステム２が押し下げられ、シリンダ５内部のポンプ機構により液がステム２内より連絡口14を介して流路ｐを通り、噴出口10より噴出される。押圧板25の押圧を解除すると上方付勢力でステム２が上昇すると同時にコイルスプリング24により弁部材８が前方へ移行して噴出口10を閉塞する。   The operation of the pump A equipped with the pressing head 1 configured as described above will be described. When the opening / closing lever 9 is pushed down from the state shown in FIG. 1, each cam-like projection 27 is lowered, and its action surface f slides on the front surface of the annular ridge 23 to push it backward, and the valve member 8 is moved forward of the coil spring 24. The nozzle 10 is moved backward against the urging force, and the spout 10 is opened. Next, the stem 2 is pushed down, and the liquid is ejected from the ejection port 10 through the flow path p from the inside of the stem 2 through the communication port 14 by the pump mechanism inside the cylinder 5. When the pressing of the pressing plate 25 is released, the stem 2 is raised by the upward biasing force, and at the same time, the valve member 8 is moved forward by the coil spring 24 to close the ejection port 10.

図７及び図８は他の実施例を示すもので、更に異なる形態の開閉レバー９を設けた例を示す。ここに示される開閉レバー９は、上記押圧作用部26を、上記押圧板25下面より垂設するとともに、押圧板25の押し下げ時に後方へ回動して上記弁部材８の後端部に設けた係止段部29を後方へ押圧する揺動板30として構成している。図示例では、上記図１の実施例に於いて、周壁16上端縁より頂壁31を延設し、該頂壁31の中央部所定位置に開閉レバー９を装着するための装着凹部32を形成している。装着凹部32の前壁は前記横筒11の後壁20と兼用している。また、この装着凹部32内に於いて、上記弁部材８の後部上方に上下動可能に後部を枢着した押圧板25を設け、該押圧板25の枢着部分下面より二股状の揺動板30を垂設して、環状突条23前面の小径部8a両側に前後揺動可能に係合させている。この場合は押圧板25を押し込むことにより揺動板30が後方に回動し、係止段部29としての環状突条23前面を後方へ押圧し、コイルスプリングの前方付勢力に抗して弁部材８を後方へ移行させ、噴出口10を開口する。また、噴出口10を閉じる際は押圧板25の押圧を解除すれば同様に行える。   7 and 8 show another embodiment, and further shows an example in which an opening / closing lever 9 having a different form is provided. The open / close lever 9 shown here suspends the pressing action portion 26 from the lower surface of the pressing plate 25 and pivots backward when the pressing plate 25 is depressed, and is provided at the rear end portion of the valve member 8. The rocking plate 30 is configured as a rocking plate 30 that presses the locking step 29 backward. In the illustrated example, the top wall 31 is extended from the upper edge of the peripheral wall 16 in the embodiment of FIG. 1, and a mounting recess 32 for mounting the opening / closing lever 9 is formed at a predetermined position in the center of the top wall 31. is doing. The front wall of the mounting recess 32 is also used as the rear wall 20 of the horizontal cylinder 11. Further, in the mounting recess 32, a pressing plate 25 pivotally attached to the rear portion so as to be movable up and down is provided above the rear portion of the valve member 8, and a bifurcated swing plate is formed from the lower surface of the pivoting portion of the pressing plate 25. 30 is vertically suspended and engaged with both sides of the small-diameter portion 8a on the front surface of the annular ridge 23 so as to be swingable back and forth. In this case, by pushing the pressing plate 25, the swinging plate 30 is rotated backward, pressing the front surface of the annular ridge 23 as the locking step portion 29 backward, and resisting the front biasing force of the coil spring. The member 8 is moved rearward, and the spout 10 is opened. Further, when closing the ejection port 10, it can be similarly performed by releasing the pressing of the pressing plate 25.

本発明の押下ヘッド及びポンプを示す縦断面図である。（実施例１）It is a longitudinal cross-sectional view which shows the pressing head and pump of this invention. Example 1 同実施例の平面図である。（実施例１）It is a top view of the Example. Example 1 同実施例の開閉レバーを押し下げた状態の縦断面図である。（実施例１）It is a longitudinal cross-sectional view of the state which pushed down the opening / closing lever of the Example. Example 1 本発明のカム状突起の部分を示す要部拡大断面図である（実施例２）(Example 2) which is a principal part expanded sectional view which shows the part of the cam-shaped protrusion of this invention. 本発明の押下ヘッド及びポンプを示す縦断面図である。（実施例３）It is a longitudinal cross-sectional view which shows the pressing head and pump of this invention. (Example 3) 同実施例の平面図である。（実施例３）It is a top view of the Example. (Example 3) 本発明の押下ヘッド及びポンプを示す縦断面図である。（実施例４）It is a longitudinal cross-sectional view which shows the pressing head and pump of this invention. (Example 4) 同実施例の平面図である。（実施例４）It is a top view of the Example. (Example 4)

符号の説明Explanation of symbols

１…押下ヘッド，２…ステム，７…本体，８…弁部材，９…開閉レバー，
10…噴出口，14…連絡口，25…押圧板，26…押圧作用部，27…カム状突起，
29…係止段部，30…揺動板，Ｒ…弁室，ｐ…流路，ｆ…作用面 DESCRIPTION OF SYMBOLS 1 ... Pressing head, 2 ... Stem, 7 ... Main body, 8 ... Valve member, 9 ... Opening / closing lever,
10 ... jet port, 14 ... contact port, 25 ... pressing plate, 26 ... pressing action part, 27 ... cam-like projection,
29 ... Locking step, 30 ... Oscillating plate, R ... Valve chamber, p ... Flow path, f ... Working surface

Claims (2)

上方付勢状態で押し下げ可能にステム２を起立したポンプに装着する押下ヘッドであって、先端に噴出口10を開口した弁室Ｒを備えた本体７と、上記弁室Ｒ内周に外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口10を閉塞し、且つ、ステム２内と連通する連絡口14より噴出口10に至る流路ｐを画成してなる弁部材８と、該弁部材を作動させて上記噴出口10を開閉する開閉レバー９とを備え、上記開閉レバー９は、上記本体７上に上下揺動可能に枢着した押圧板25と、該押圧板より垂設して上記弁部材８の後端部に連繋させるとともに、上記押圧板25の押し下げ時に上記弁部材８をその前方付勢力に抗して後方へ押圧移行させる押圧作用部26とからなり、上記押圧作用部26が、上記押圧板25下面より垂設するとともに、上記押圧板25の押し下げ時に弁部材８後端部に側面視円弧状の作用面ｆを摺動して弁部材８を後方へ押圧移行させるカム状突起27であることを特徴とする押下ヘッド。 A pressing head that is attached to a pump in which the stem 2 is erected so as to be able to be pushed down in an upward biased state. The valve member 8 is formed so as to be slidably fitted, close the jet port 10 in the forward biased state, and define a flow path p from the communication port 14 communicating with the inside of the stem 2 to the jet port 10. And an opening / closing lever 9 that opens and closes the jet port 10 by operating the valve member, and the opening / closing lever 9 includes a pressing plate 25 pivotally mounted on the main body 7 so as to swing up and down, and the pressing plate. And a pressing action portion 26 for connecting the rear end portion of the valve member 8 to the rear end portion of the valve member 8 and causing the valve member 8 to be pressed and moved backward against the front biasing force when the pressing plate 25 is pushed down. The pressing action portion 26 is suspended from the lower surface of the pressing plate 25 and the pressing plate 25 2. A pressing head comprising a cam-like projection 27 that slides on the rear end portion of the valve member 8 at the rear end of the valve member 8 to slide the valve member 8 in a rearward direction by moving the valve member 8 in a backward direction . 上方付勢状態で押し下げ可能に起立したステム２の上端に押下ヘッド１を装着したポンプであって、上記押下ヘッド１は、先端に噴出口10を開口した弁室Ｒを備えた本体７と、上記弁室Ｒ内周に外周を摺動可能に嵌合させるとともに、前方付勢状態で噴出口10を閉塞し、且つ、ステム２内と連通する連絡口14より噴出口10に至る流路ｐを画成してなる弁部材８と、該弁部材を作動させて上記噴出口10を開閉する開閉レバー９とを備え、上記開閉レバー９は、上記本体７上に上下揺動可能に枢着した押圧板25と、該押圧板より垂設して上記弁部材８の後端部に連繋させるとともに、上記押圧板25の押し下げ時に上記弁部材８をその前方付勢力に抗して後方へ押圧移行させる押圧作用部26とからなり、上記押圧作用部26が、上記押圧板25下面より垂設するとともに、上記押圧板25の押し下げ時に弁部材８後端部に側面視円弧状の作用面ｆを摺動して弁部材８を後方へ押圧移行させるカム状突起27であり、上記噴出口10の開放後ステム２が押し下げられる如く構成してなることを特徴としたポンプ。A pump in which a pressing head 1 is mounted on the upper end of a stem 2 erected so as to be able to be pushed down in an upward biased state, and the pressing head 1 includes a main body 7 having a valve chamber R having a spout 10 opened at the tip, The outer periphery of the valve chamber R is slidably fitted, the outlet 10 is closed in the forward biased state, and the flow path p from the communication port 14 communicating with the inside of the stem 2 leads to the outlet 10 And an opening / closing lever 9 that opens and closes the jet port 10 by operating the valve member. The opening / closing lever 9 is pivotally mounted on the main body 7 so as to be vertically swingable. The pressure plate 25 is suspended from the pressure plate so as to be connected to the rear end portion of the valve member 8, and when the pressure plate 25 is pushed down, the valve member 8 is pushed backward against its forward biasing force. A pressing action portion 26 to be transferred, and the pressing action portion 26 is suspended from the lower surface of the pressing plate 25. And a cam-like protrusion 27 that slides on the arcuate working surface f in a side view at the rear end portion of the valve member 8 when the pressing plate 25 is pushed down, and pushes the valve member 8 backward. A pump characterized in that the stem 2 is configured to be pushed down after being opened.
JP2003339591A 2003-09-30 2003-09-30 Depressing head and pump equipped with the head Expired - Fee Related JP4315278B2 (en)

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JP4756549B2 (en) * 2006-07-28 2011-08-24 株式会社吉野工業所 Pressing head
JP5047587B2 (en) * 2006-10-31 2012-10-10 株式会社吉野工業所 Pressing head and pump with pressing head
WO2009072203A1 (en) * 2007-12-06 2009-06-11 Mitani Valve Co., Ltd. Chip stop mechanism, pump type product with chip stop mechanism, and aerosol type product with chip stop mechanism
JP5413895B2 (en) 2008-10-31 2014-02-12 株式会社吉野工業所 Pump pressing head and pressing head type discharge pump
FR2977573B1 (en) * 2011-07-06 2013-08-16 Rexam Dispensing Sys PUSH BUTTON FOR A SYSTEM FOR DISTRIBUTING A PRESSURIZED PRODUCT
JP6214471B2 (en) * 2014-05-29 2017-10-18 株式会社吉野工業所 Dispenser

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