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JP2009082775A - Liquid spray pump - Google Patents

Liquid spray pump Download PDF

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Publication number
JP2009082775A
JP2009082775A JP2007252946A JP2007252946A JP2009082775A JP 2009082775 A JP2009082775 A JP 2009082775A JP 2007252946 A JP2007252946 A JP 2007252946A JP 2007252946 A JP2007252946 A JP 2007252946A JP 2009082775 A JP2009082775 A JP 2009082775A
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Japan
Prior art keywords
stem
piston guide
piston
fitted
cylinder
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JP2007252946A
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JP5013422B2 (en
Inventor
Kazuhisa Yoshimura
和寿 吉村
Takayuki Goto
孝之 後藤
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Priority to JP2007252946A priority Critical patent/JP5013422B2/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
    • B05B11/1043—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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid spray pump which is fitted with a vertical movable member C to be pushed down in an upward energizing state by engaging the outer peripheral edge part of an annular piston C<SB>1</SB>with a cylinder B to be slidable, is easily assembled, has good sealing property and exhibits excellent pump function, wherein the vertical movable member C is formed as a discharge valve 23 by attaching the upper part of a piston guide C<SB>2</SB>to the inside of the lower part of a stem C<SB>3</SB>having a spray head C<SB>4</SB>attached to the upper end to pass asurrounding liquid and engaging the inner peripheral edge part of the annular piston C<SB>1</SB>with a connection part of the stem C<SB>3</SB>to the piston guide C<SB>2</SB>to be vertically movable in a prescribed width. <P>SOLUTION: An locking rod 41 for locking the upper surface of the piston guide C<SB>2</SB>to a prescribed position in the stem C<SB>3</SB>to be in contact with each other is installed. As a result, the assembling operation of the piston guide C<SB>2</SB>and the stem C<SB>3</SB>and the following assembling operation of the annular piston C<SB>1</SB>and a coil spring are precisely and easily carried out. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は液体噴出ポンプに関する。   The present invention relates to a liquid jet pump.

液体噴出ポンプとして、装着キャップにより容器体に装着固定したシリンダと、シリンダ内に下部を収納してシリンダ上方に上端を上方付勢状態で押し込み可能に突出した上下動部材とを備え、上下動部材の上下動により装着した容器体内の液を吸い上げて上下動部材の噴出口より噴出する如く構成したものが種々提案されている。（例えば，特許文献１参照）   As a liquid ejection pump, it is provided with a cylinder mounted and fixed to the container body by a mounting cap, and a vertically moving member that houses a lower part in the cylinder and protrudes so that the upper end can be pushed in an upward biased state above the cylinder. Various configurations have been proposed in which the liquid in the container mounted by the vertical movement is sucked up and ejected from the outlet of the vertical movement member. (For example, see Patent Document 1)

また、この種の液体噴出ポンプとして、例えば、図８に示す如く、上端に噴出ヘッドC4を嵌着したステムC3と、ステムC3内下部に上部を嵌着したピストンガイドC2と、ステムC3とピストンガイドC2との連結部位に内周縁部を嵌合させてピストンガイドC2に対して所定幅の上下動が可能に嵌合させた環状ピストンC1とからなる上下動部材Ｃを備えたものが知られている。 Further, as this type of liquid ejection pump, for example, as shown in FIG. 8, a stem C 3 having an ejection head C 4 fitted to the upper end thereof, and a piston guide C 2 having an upper portion fitted to the lower part in the stem C 3 , A vertically moving member comprising an annular piston C 1 in which an inner peripheral edge is fitted to a connecting portion between the stem C 3 and the piston guide C 2 and is fitted to the piston guide C 2 so as to be vertically movable with a predetermined width. Those with C are known.

上記ピストンガイドC2は、下部の大径部と上部の小径部とからなる棒状で、大径部上にテーパ状の弁座を形成しており、また、ステムC3は上下端を開口した筒状をなしている。また、ピストンガイドC2上部のステムC3内下部への嵌合係止は、ステムC3内面に突設した一対の係合凸部100 と、ピストンガイドの外周に凹設した係合凹部101 との嵌合により行っている。
特開２００５−２３８１９７号公報 The piston guide C 2 has a rod shape composed of a lower large diameter portion and an upper small diameter portion, and a tapered valve seat is formed on the large diameter portion, and the stem C 3 has upper and lower ends opened. It has a cylindrical shape. Further, the engagement and locking of the upper part of the piston guide C 2 to the lower part of the stem C 3 are performed by a pair of engaging convex parts 100 projecting from the inner surface of the stem C 3 and an engaging concave part 101 recessed from the outer periphery of the piston guide. It is done by fitting with.
JP 2005-238197 A

前記図８の液体噴出ポンプは、環状ピストンC1，ピストンガイドC2，ステムC3，噴出ヘッドC4を組み付けることにより簡単に形成することができ、組み付け操作が容易で、しかも環状ピストンC1の各シール部分を確実な液密性をもって組み付けることができ、良好なポンプ機能を発揮する優れたものである。 The liquid jet pump of FIG. 8 can be easily formed by assembling the annular piston C 1 , the piston guide C 2 , the stem C 3 , and the ejection head C 4. The assembly operation is easy and the annular piston C 1. Each of the seal portions can be assembled with a certain liquid tightness, and is excellent in that it exhibits a good pump function.

本発明はこの様な液体噴出ポンプを更に改良したものであり、組み付け操作がより容易となり、また、その組み付け後も同様に確実なシール性を得られ、良好なポンプ機能を発揮できる優れた液体噴出ポンプを提案する。   The present invention is a further improvement of such a liquid jet pump, which makes it easier to assemble and provides an excellent liquid that can provide a reliable sealing performance even after the assembly and can exhibit a good pump function. A jet pump is proposed.

第１の手段として、以下の通り構成した。即ち、上端に噴出ヘッドC4を嵌着したステムC3の下部内にピストンガイドC2の上部を、その周囲の液の流通が可能に嵌着させ、且つ、ステムC3とピストンガイドC2との連結部位に所定幅の上下動が可能に環状ピストンC1の内周縁部を嵌合させて吐出弁23とした上下動部材Ｃを、環状ピストンC1外周縁部をシリンダＢに摺動可能に嵌合させて上方付勢状態で押し下げ可能に装着した液体噴出ポンプであって、ステムC3内所定位置にピストンガイドC2の上面を当接係止する係止杆41を架設した。 The first means is configured as follows. That is, the upper part of the piston guide C 2 is fitted into the lower part of the stem C 3 fitted with the ejection head C 4 at the upper end so that the liquid around it can flow, and the stem C 3 and the piston guide C 2 are fitted. The vertical movement member C which is the discharge valve 23 by fitting the inner peripheral edge of the annular piston C 1 so as to be able to move up and down with a predetermined width at the connecting part with the annular piston C 1 slides on the cylinder B. capable fitted with a liquid jet pump capable mounted depressed above urging state and bridging the engagement rod 41 the upper surface of the piston guide C 2 abuts locking in the stem C 3 position.

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、ピストンガイドC2とステムC3との係合が、ピストンガイドC2の上端部外周に周設した係合突部35の下面を、ステムC3内面下部の対向する所定位置に突設した係止突部40の上面に乗り越え係合させてなり、係合突部の外周面をテーパ面として構成し、各係止突部40の下面を湾曲面として構成した。 The second means is configured as follows. That is, in the first means, the piston guide C 2 and the stem C 3 are engaged with the lower surface of the engaging projection 35 provided around the outer periphery of the upper end of the piston guide C 2 , and the inner surface of the stem C 3. The upper surface of the locking projection 40 projecting at a predetermined position facing the lower portion is overcome and engaged, the outer peripheral surface of the engagement projection is configured as a tapered surface, and the lower surface of each locking projection 40 is a curved surface Configured as.

第３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、下部の大径部30上方に小径部31を延設するとともに、大径部30上面をテーパ状の弁座32に構成し、且つ、小径部31上端部外周に係合突部35を周設したピストンガイドC2と、係合突部35を乗り越え係合させた一対の係止突部40を内面下部の対向する所定位置に突設するとともに、各係止突部40の上方所定位置に係止杆41を架設し、且つ、下端縁を弁座32と隙間をあけて垂設したステムC3と、上端をステムC3内周下端部に摺動可能に嵌合させた内筒部21よりリング状の連結部22を介して外筒部20を延設するとともに、内筒部21が弁座32上に当接した状態から連結部22がステムC3下端に当接するまでの間を上下動可能に装着した環状ピストンC1と、環状ピストンC1を常時弁座32上に圧接するコイルスプリングとからなる組付け体を用いて組み付け形成した。 The third means was configured as follows. That is, in the first means, the small diameter portion 31 is extended above the lower large diameter portion 30, the upper surface of the large diameter portion 30 is configured as a tapered valve seat 32, and the upper end of the small diameter portion 31 is also formed. The piston guide C 2 provided with an engaging protrusion 35 on the outer periphery of the part, and a pair of locking protrusions 40 that are engaged over the engaging protrusion 35 are protruded at predetermined positions facing the lower part of the inner surface, A locking rod 41 is installed at a predetermined position above each locking projection 40, and the lower end edge of the stem C 3 is suspended from the valve seat 32 with a gap, and the upper end is the lower end of the inner periphery of the stem C 3 . The outer cylindrical portion 20 extends from the inner cylindrical portion 21 slidably fitted through the ring-shaped connecting portion 22, and the connecting portion 22 is in a state where the inner cylindrical portion 21 is in contact with the valve seat 32. an annular piston C 1 but fitted with until in contact with the stem C 3 lower vertically movable, assembled body comprising a coil spring for pressing on the normally valve seat 32 an annular piston C 1 Formed assembly with.

本発明の液体噴出ポンプは、係止杆41の存在でピストンガイドC2をステムC3の下端部に嵌着する際に、嵌合する所定位置より突き抜けてしまう虞れがなく、確実に所定位置に嵌合させることができるため、組み付け操作が正確に且つ容易に行える利点がある。 Liquid jet pump of the present invention, the piston guide C 2 when fitted to the lower end of the stem C 3 in the presence of latching rods 41, there is no possibility that would penetrate from the predetermined position to fit securely predetermined Since it can be made to fit in a position, there exists an advantage which can perform assembly operation correctly and easily.

ピストンガイドC2とステムC3との係合が、ピストンガイドC2の上端部外周に周設した係合突部35の下面を、ステムC3内面下部の対向する所定位置に突設した係止突部40の上面に乗り越え係合させてなり、係合突部の外周面をテーパ面として構成し、各係止突部40の下面を湾曲面として構成した場合には、ピストンガイドC2の上方への突き出しを憂慮する必要がないため、係止突部40の下面を水平にして下方への抜け出しを防止する如く構成する必要がなく、容易に係合することができる。 The engagement between the piston guide C 2 and the stem C 3 is such that the lower surface of the engaging projection 35 provided around the outer periphery of the upper end of the piston guide C 2 is projected at a predetermined position facing the lower inner surface of the stem C 3. If the outer peripheral surface of the engaging protrusion is configured as a tapered surface and the lower surface of each locking protrusion 40 is configured as a curved surface, the piston guide C 2 Therefore, it is not necessary to configure the lower surface of the locking projection 40 to be horizontal so as to prevent the downward protrusion, and the engagement can be easily engaged.

下部の大径部30上方に小径部31を延設するとともに、大径部30上面をテーパ状の弁座32に構成し、且つ、小径部31上端部外周に係合突部35を周設したピストンガイドC2と、係合突部35を乗り越え係合させた一対の係止突部40を内面下部の対向する所定位置に突設するとともに、各係止突部40の上方所定位置に係止杆41を架設し、且つ、下端縁を弁座32と隙間をあけて垂設したステムC3と、上端をステムC3内周下端部に摺動可能に嵌合させた内筒部21よりリング状の連結部22を介して外筒部20を延設するとともに、内筒部21が弁座32上に当接した状態から連結部22がステムC3下端に当接するまでの間を上下動可能に装着した環状ピストンC1と、環状ピストンC1を常時弁座32上に圧接するコイルスプリングとからなる組付け体を用いて組み付け形成した場合には、部材数を極力少なくしての運搬，保管が可能である。 A small-diameter portion 31 extends above the lower large-diameter portion 30, the upper surface of the large-diameter portion 30 is configured as a tapered valve seat 32, and an engagement protrusion 35 is provided around the upper end of the small-diameter portion 31. The piston guide C 2 and the pair of locking projections 40 that are engaged with the engagement projection 35 are projected at predetermined positions facing each other on the lower part of the inner surface, and at a predetermined position above each locking projection 40. Stem C 3 with a locking rod 41 installed and with its lower edge suspended from the valve seat 32 with a gap, and an inner cylinder portion slidably fitted to the lower end of the inner periphery of the stem C 3 The outer cylinder 20 is extended from the ring 21 via the ring-shaped connecting portion 22 and the inner cylinder 21 is in contact with the valve seat 32 until the connecting portion 22 contacts the lower end of the stem C 3. the annular piston C 1 mounted vertically movably, in the case of forming the assembly with the assembled body consisting of a coil spring for pressing on the normally valve seat 32 an annular piston C 1 , Transportation of the number of members minimizing to, it is possible to store.

以下、本発明の実施例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７は本発明の液体噴出ポンプ１の一例を示すもので、液体噴出ポンプ１は、装着キャップＡと、シリンダＢと、上下動部材Ｃとを備えている。本例に於ける液体噴出ポンプ１は、シリンダＢの径が10乃至15mm程度の小形のポンプを対象としているが、当然その大きさは限られるものではない。しかしながら、本発明のポンプは上記した小形のポンプに対して種々の効果が顕著となる傾向がある。   1 to 7 show an example of a liquid jet pump 1 according to the present invention. The liquid jet pump 1 includes a mounting cap A, a cylinder B, and a vertical movement member C. The liquid ejection pump 1 in this example is a small pump having a cylinder B diameter of about 10 to 15 mm, but the size is naturally not limited. However, the pump of the present invention tends to have various effects with respect to the small pump described above.

装着キャップＡは口頸部外周に周壁２を螺合させて液体噴出ポンプ１を容器体に装着するためのものであり、周壁２の上端縁より、中央部に上下動部材Ｃを挿通する窓孔３を備えた頂壁４を延設している。頂壁４の中央部はシリンダＢの上端を嵌着する環状の隆起部4aに構成している。また、周壁２外周には装飾性向上の為の金属筒５を嵌着している。   The mounting cap A is used for mounting the liquid jet pump 1 to the container body by screwing the peripheral wall 2 around the outer periphery of the mouth and neck. A window through which the vertical movement member C is inserted from the upper end edge of the peripheral wall 2 to the center. A top wall 4 with holes 3 is extended. A central portion of the top wall 4 is formed as an annular raised portion 4a to which the upper end of the cylinder B is fitted. Further, a metal cylinder 5 is fitted on the outer periphery of the peripheral wall 2 for improving the decoration.

シリンダＢは、隆起部4aが形成する環状凹部内に上端を嵌着して装着キャップＡに上端を固定した筒状をなし、装着キャップ周壁２を容器体口頸部外周に螺着した際にその下部を容器体内に垂下する。また、内部下部に吸込み弁10を備え、更に、吸込み弁10下方の嵌合筒に吸上げパイプ11の上端を嵌着させている。尚、図中ｐはパッキンを示す。   The cylinder B has a cylindrical shape in which the upper end is fitted into an annular recess formed by the raised portion 4a and the upper end is fixed to the mounting cap A, and when the mounting cap peripheral wall 2 is screwed to the outer periphery of the container neck. The lower part is suspended in the container. A suction valve 10 is provided at the lower part of the interior, and the upper end of the suction pipe 11 is fitted into a fitting cylinder below the suction valve 10. In the figure, p indicates packing.

上下動部材Ｃは、下部をシリンダＢ内に挿入し、上部をシリンダＢより上方へ突設して装着され、第１コイルスプリングs1により常時上方へ付勢されて押し下げ可能に装着されている。上下動部材Ｃは、環状ピストンC1と、ピストンガイドC2と、ステムC3と、噴出ヘッドC4とを備えている。 The vertically moving member C is mounted such that the lower part is inserted into the cylinder B and the upper part projects upward from the cylinder B, and is always urged upward by the first coil spring s 1 so as to be pushed down. . The vertically moving member C includes an annular piston C 1 , a piston guide C 2 , a stem C 3, and an ejection head C 4 .

環状ピストンC1は、外周の内方へ突出する断面円弧状をなす外筒部20と、内周の内筒部21とを、リング状の連結部22により連結して構成されている。 Annular piston C 1 includes an outer cylinder portion 20 forming a circular arc cross sectional shape protruding inward of the outer periphery, an inner cylindrical portion 21 the inner periphery, and is configured by connecting the ring-shaped connecting portion 22.

ピストンガイドC2は、図２に示す如く、下部の大径部30と、上部の小径部31とを備えた棒状をなし、大径部30の上面はテーパ状の弁座32に構成し、弁座32直下の大径部30外周にフランジ33を突設し、フランジ33下方の大径部30外周に、周方向複数のリブ34を縦設している。また、小径部31の上端部には、外面がテーパ状の係合突部35を周設している。 As shown in FIG. 2, the piston guide C 2 has a rod shape having a lower large-diameter portion 30 and an upper small-diameter portion 31, and the upper surface of the large-diameter portion 30 is configured as a tapered valve seat 32. A flange 33 protrudes from the outer periphery of the large-diameter portion 30 directly below the valve seat 32, and a plurality of circumferential ribs 34 are vertically provided on the outer periphery of the large-diameter portion 30 below the flange 33. Further, an engaging protrusion 35 having a tapered outer surface is provided around the upper end portion of the small diameter portion 31.

ステムC3は、図４乃至図６に示す如く、ピストンガイドC2の小径部31の外径より大きく、大径部30の外径と略等しい内径を備えた上下端を開口した筒状をなし、内周下部所定位置に一対の係止突部40を突設し、また、各係止突部40の上方所定位置には係止杆41を架設している。更に、外周下部所定位置にはフランジ部42を突設している。 As shown in FIGS. 4 to 6, the stem C 3 has a cylindrical shape with an upper and lower end that is larger than the outer diameter of the small diameter portion 31 of the piston guide C 2 and has an inner diameter substantially equal to the outer diameter of the large diameter portion 30. None, a pair of locking projections 40 are provided at predetermined positions on the inner peripheral lower portion, and a locking rod 41 is provided at a predetermined position above each locking projection 40. Further, a flange portion 42 is projected at a predetermined position on the outer peripheral lower portion.

係止突部40は水平な上面と湾曲した下面を備え、ピストンガイドC2の小径部31外周に密接する突出幅を備えた上部突部40a と、上部突部40a より突出幅が小さく、下面が湾曲面をなす下部突部40b とで構成しており、対向位置にそれぞれ突設している。係止杆41は各係止突部40を結ぶ中心線と直交する中心線上に設けたものであり、平面図で各係止突部40と係止杆41とが重なり合うことが無いように設けられている。また、係止杆41の両側は幅広に形成されている。 The engagement projection 40 has a lower surface and a curved horizontal upper surface, the piston guide and the upper protrusion 40a having a protruding length of close contact with the small diameter portion 31 the outer periphery of the C 2, than the projection width is small upper protrusions 40a, the lower surface And a lower projection 40b having a curved surface, and projecting from the opposing positions. The locking rod 41 is provided on a center line orthogonal to the center line connecting the locking projections 40, and is provided so that the locking projections 40 and the locking rod 41 do not overlap in a plan view. It has been. Further, both sides of the locking rod 41 are formed wide.

上記した各部材は、例えば、ピストンガイドC2に環状ピストンC1及び第２コイルスプリングs2を嵌合させた後、ステムC3の下端開口よりピストンガイドC2の上端部を挿入して、その係合突部35下面を各係止突部40上面に乗り越え係合させ、図７に示す如き、組付け体を形成する。この際、環状ピストンC1の内筒部21上端はステムC3の下端部内周に液密摺動可能に嵌合し、また、内筒部21の下端部は弁座32に圧接されて、この部分で吐出弁23を形成する。また、第２コイルスプリングs2は、フランジ部42と、連結部22との間に介在して環状ピストンC1を常時弁座32側へ付勢している。 Each member described above, for example, after fitting the annular piston C 1 and the second coil spring s 2 to the piston guide C 2, by inserting the upper end of the piston guide C 2 from the lower end opening of the stem C 3, The lower surface of the engaging protrusion 35 is moved over and engaged with the upper surface of each locking protrusion 40 to form an assembly as shown in FIG. At this time, the upper end of the inner cylinder portion 21 of the annular piston C 1 is slidably fitted to the inner periphery of the lower end portion of the stem C 3 , and the lower end portion of the inner cylinder portion 21 is pressed against the valve seat 32, The discharge valve 23 is formed at this portion. Further, the second coil spring s 2 is interposed between the flange portion 42 and the connecting portion 22 and constantly urges the annular piston C 1 toward the valve seat 32 side.

噴出ヘッドC4はステムC3の上端に嵌合筒部50を嵌合させて嵌着し、ステムC3内から前面に設けた噴出口51に連通する流路を備えている。 Injection head C 4 is fitted to the fitting tube portion 50 at the upper end of the stem C 3 are fitted, and a flow passage communicating with the ejection port 51 provided on a front face from inside the stem C 3.

上記の液体噴出ポンプ１は、例えば、ピストンガイドC2下部外周に第１コイルスプリングs1嵌合させた図７に示す組付け体を、その環状ピストンC1の外筒部20をシリンダＢ内周に液密摺動可能に嵌合させて、シリンダＢに装着し、次いでシリンダＢに装着キャップＡを嵌着し、しかる後ステムC3上端に噴出ヘッドC4を嵌着して上下動部材Ｃを組み付け形成する。 For example, the liquid jet pump 1 includes the assembly shown in FIG. 7 in which the first coil spring s 1 is fitted to the lower outer periphery of the piston guide C 2 , and the outer cylindrical portion 20 of the annular piston C 1 is placed in the cylinder B. Fit around the circumference so as to be liquid-tightly slidable, attach to cylinder B, then fit the mounting cap A to cylinder B, and then fit the ejection head C 4 to the upper end of stem C 3 C is assembled and formed.

液体噴出ポンプの半断面図である。（実施例１）It is a half sectional view of a liquid jet pump. Example 1 ピストンガイドの縦断面図である。（実施例１）It is a longitudinal cross-sectional view of a piston guide. Example 1 ステムの平面図である。（実施例１）It is a top view of a stem. Example 1 ステムの縦断面図である。（実施例１）It is a longitudinal cross-sectional view of a stem. Example 1 ステムの縦断面図である。（実施例１）It is a longitudinal cross-sectional view of a stem. Example 1 ステムの説明図である。（実施例１）It is explanatory drawing of a stem. Example 1 組み付け体の縦断面図である。（実施例１）It is a longitudinal cross-sectional view of an assembly. Example 1 従来の液体噴出ポンプの半断面図である。It is a half sectional view of a conventional liquid jet pump.

符号の説明Explanation of symbols

１…液体噴出ポンプ
Ａ…装着キャップ
２…周壁，３…窓孔，４…頂壁，4a…隆起部，５…金属筒
Ｂ…シリンダ
10…吸込み弁，11…吸上げパイプ，ｐ…パッキン
Ｃ…上下動部材
C1…環状ピストン
20…外筒部，21…内筒部，22…連結部，23…吐出弁，
s1…第１コイルスプリング，s2…第２コイルスプリング
C2…ピストンガイド
30…大径部，31…小径部，32…弁座，33…フランジ，34…リブ，35…係合突部
C3…ステム
40…係止突部，40a …上部突部，40b …下部突部，41…係止杆，42…フランジ部 C4…噴出ヘッド
50…嵌合筒部 DESCRIPTION OF SYMBOLS 1 ... Liquid ejection pump A ... Mounting cap 2 ... Perimeter wall, 3 ... Window hole, 4 ... Top wall, 4a ... Raised part, 5 ... Metal cylinder B ... Cylinder
10 ... Suction valve, 11 ... Suction pipe, p ... Packing C ... Vertical movement member
C 1 ... annular piston
20 ... outer cylinder part, 21 ... inner cylinder part, 22 ... coupling part, 23 ... discharge valve,
s 1 ... 1st coil spring, s 2 ... 2nd coil spring
C 2 ... Piston guide
30 ... large diameter part, 31 ... small diameter part, 32 ... valve seat, 33 ... flange, 34 ... rib, 35 ... engaging projection
C 3 ... Stem
40 ... Locking protrusion, 40a ... Upper protrusion, 40b ... Lower protrusion, 41 ... Locking rod, 42 ... Flange C 4 ... Ejection head
50 ... Mating cylinder

Claims (3)

上端に噴出ヘッドC4を嵌着したステムC3の下部内にピストンガイドC2の上部を、その周囲の液の流通が可能に嵌着させ、且つ、ステムC3とピストンガイドC2との連結部位に所定幅の上下動が可能に環状ピストンC1の内周縁部を嵌合させて吐出弁23とした上下動部材Ｃを、環状ピストンC1外周縁部をシリンダＢに摺動可能に嵌合させて上方付勢状態で押し下げ可能に装着した液体噴出ポンプであって、ステムC3内所定位置にピストンガイドC2の上面を当接係止する係止杆41を架設したことを特徴とする液体噴出ポンプ。 The upper part of the piston guide C 2 is fitted into the lower part of the stem C 3 fitted with the ejection head C 4 at the upper end so that the liquid around it can flow, and the stem C 3 and the piston guide C 2 The vertical movement member C which is the discharge valve 23 by fitting the inner peripheral edge of the annular piston C 1 to be able to move up and down by a predetermined width at the connecting portion is slidable on the cylinder B at the outer peripheral edge of the annular piston C 1. A liquid jet pump that is fitted and can be pushed down in an upward biased state, and is characterized in that a locking rod 41 is provided to contact and lock the upper surface of the piston guide C 2 at a predetermined position in the stem C 3 . And liquid jet pump. ピストンガイドC2とステムC3との係合が、ピストンガイドC2の上端部外周に周設した係合突部35の下面を、ステムC3内面下部の対向する所定位置に突設した係止突部40の上面に乗り越え係合させてなり、係合突部の外周面をテーパ面として構成し、各係止突部40の下面を湾曲面として構成した請求項１記載の液体噴出ポンプ。 The engagement between the piston guide C 2 and the stem C 3 is such that the lower surface of the engaging projection 35 provided around the outer periphery of the upper end of the piston guide C 2 is projected at a predetermined position facing the lower inner surface of the stem C 3. 2. The liquid jet pump according to claim 1, wherein the liquid ejecting pump is formed by climbing over and engaging with the upper surface of the stop projection 40, wherein the outer peripheral surface of the engagement projection is configured as a tapered surface, and the lower surface of each locking projection 40 is configured as a curved surface. . 下部の大径部30上方に小径部31を延設するとともに、大径部30上面をテーパ状の弁座32に構成し、且つ、小径部31上端部外周に係合突部35を周設したピストンガイドC2と、係合突部35を乗り越え係合させた一対の係止突部40を内面下部の対向する所定位置に突設するとともに、各係止突部40の上方所定位置に係止杆41を架設し、且つ、下端縁を弁座32と隙間をあけて垂設したステムC3と、上端をステムC3内周下端部に摺動可能に嵌合させた内筒部21よりリング状の連結部22を介して外筒部20を延設するとともに、内筒部21が弁座32上に当接した状態から連結部22がステムC3下端に当接するまでの間を上下動可能に装着した環状ピストンC1と、環状ピストンC1を常時弁座32上に圧接するコイルスプリングとからなる組付け体を用いて組み付け形成した請求項１記載の液体噴出ポンプ。 A small-diameter portion 31 extends above the lower large-diameter portion 30, the upper surface of the large-diameter portion 30 is configured as a tapered valve seat 32, and an engagement protrusion 35 is provided around the upper end of the small-diameter portion 31. The piston guide C 2 and the pair of locking projections 40 that are engaged with the engagement projection 35 are projected at predetermined positions facing each other on the lower part of the inner surface, and at a predetermined position above each locking projection 40. Stem C 3 with a locking rod 41 installed and with its lower edge suspended from the valve seat 32 with a gap, and an inner cylinder portion slidably fitted to the lower end of the inner periphery of the stem C 3 The outer cylinder 20 is extended from the ring 21 via the ring-shaped connecting portion 22 and the inner cylinder 21 is in contact with the valve seat 32 until the connecting portion 22 contacts the lower end of the stem C 3. the annular piston C 1 mounted vertically movably, claim formed assembled with the assembling member comprising a coil spring for pressing on the normally valve seat 32 an annular piston C 1 Liquid jet pump according.
JP2007252946A 2007-09-28 2007-09-28 Liquid jet pump Active JP5013422B2 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002035654A (en) * 2000-07-25 2002-02-05 Yoshino Kogyosho Co Ltd Spray container
JP2005218928A (en) * 2004-02-04 2005-08-18 M & S Technica:Kk Liquid jet pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002035654A (en) * 2000-07-25 2002-02-05 Yoshino Kogyosho Co Ltd Spray container
JP2005218928A (en) * 2004-02-04 2005-08-18 M & S Technica:Kk Liquid jet pump

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