JP6137604B2 - Pump mechanism for discharging contents of container body and pump-type product equipped with this pump mechanism - Google Patents

Pump mechanism for discharging contents of container body and pump-type product equipped with this pump mechanism Download PDF

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JP6137604B2
JP6137604B2 JP2013048031A JP2013048031A JP6137604B2 JP 6137604 B2 JP6137604 B2 JP 6137604B2 JP 2013048031 A JP2013048031 A JP 2013048031A JP 2013048031 A JP2013048031 A JP 2013048031A JP 6137604 B2 JP6137604 B2 JP 6137604B2
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discharge valve
valve body
piston
discharge
housing
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JP2014172644A (en
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大島　保夫
保夫 大島
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Mitani Valve Co Ltd
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Mitani Valve 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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring

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

Description

本発明は、内容物放出操作に連動してハウジング内部のピストンが弾性力に抗しながら移動するときの操作初期段階で、吸込弁（吸込弁座＋吸込弁体）と吐出弁（吐出弁座＋吐出弁体）との間のハウジング内部空間域に収容済みの内容物の圧力が増加して、当該吐出弁をそれまでの閉状態から開状態へとシフトさせるポンプ機構に関する。   The present invention relates to a suction valve (suction valve seat + suction valve body) and a discharge valve (discharge valve seat) at an initial stage of operation when the piston inside the housing moves against the elastic force in conjunction with the content discharge operation. The present invention relates to a pump mechanism that shifts the discharge valve from the closed state to the open state by increasing the pressure of the contents accommodated in the housing internal space region between the + discharge valve body).

特に、内容物放出操作の初期段階における上記内容物の圧力増加に応じた吐出弁の開状態シフトに際し、
吐出弁体の一部（静止モードにおける吐出弁座との密接部分）が変形して吐出弁座から離間するのではなく、
吐出弁体の全体が当該圧力増加に基づく上方向などに移動して吐出弁座から離間する、
ように設定したポンプ機構に関する。 In particular, at the time of shifting the open state of the discharge valve according to the pressure increase of the content in the initial stage of the content discharge operation,
Rather than the part of the discharge valve body (the part close to the discharge valve seat in the stationary mode) deformed and separated from the discharge valve seat,
The entire discharge valve body moves upward and the like based on the pressure increase and is separated from the discharge valve seat.
The pump mechanism is set as follows.

容器本体に取り付けられて次回放出対象の内容物を収容するハウジングの内部空間域に、吸込弁体，吸込弁座，吐出弁体、および吐出弁座かつ内容物通路域として作用するピストンなどを配設した形のポンプ機構が、広く使用されている（特許文献１参照）。   A suction valve body, a suction valve seat, a discharge valve body, and a piston acting as a discharge valve seat and a content passage area are arranged in the internal space of the housing that is attached to the container body and accommodates the contents to be released next time. An installed pump mechanism is widely used (see Patent Document 1).

この従来のポンプ機構は、内容物放出操作時のピストンのいわば初期移動に基づくハウジング内部空間域の収容内容物の圧力増加にともない、吐出弁体の一部であってそれまで吐出弁座（ピストンの一部）と密接していた弁体作用部が変形する。   This conventional pump mechanism is a part of the discharge valve body and the discharge valve seat (piston) until the increase in the pressure of the contents contained in the inner space of the housing based on the initial movement of the piston during the content discharge operation. The part of the valve element that was in close contact with the part of the part is deformed.

なお、このハウジング内部空間域の圧力増加にともないその中の吐出弁体の全体が移動せずに、弁体作用部が変形するのは、当該吐出弁体の上端側（移動対象方向側）がハウジング固定用のネジキャップなどに当接した状態で係止されているからである。   It should be noted that the valve body acting part is deformed without moving the entire discharge valve body in accordance with the increase in pressure in the housing internal space, and the upper end side (movement target direction side) of the discharge valve body is deformed. This is because it is locked in a state of being in contact with a screw cap for fixing the housing.

この吐出弁の弁体作用部の変形作用により、それまでの当該弁体作用部と吐出弁座（ピストンの一部）との密接状態が解除される。すなわち吐出弁が静止モードの閉状態から作動モードの開状態へと移行する。   Due to the deforming action of the valve body action part of the discharge valve, the close state between the valve body action part and the discharge valve seat (a part of the piston) is canceled. That is, the discharge valve shifts from the closed state in the stationary mode to the open state in the operating mode.

また、ピストンを静止モード位置に付勢するためのコイルスプリングは、ハウジング内部空間域すなわち各種性状の放出対象内容物を収容する空間域に設けられている。   In addition, a coil spring for biasing the piston to the stationary mode position is provided in a housing internal space area, that is, a space area in which various contents to be discharged are accommodated.

特開２００２−２１９３８７号公報JP 2002-219387A

このような従来のポンプ機構の場合、内容物放出操作の初期段階におけるハウジング内部空間域の内容物圧力増加にともなう吐出弁体（弁作用部）の変形作用により、吐出弁をそれまでの閉状態から開状態にシフトさせている。   In the case of such a conventional pump mechanism, the discharge valve is closed by the deformation action of the discharge valve body (valve action portion) accompanying the increase in the content pressure in the internal space of the housing in the initial stage of the content discharge operation. Shifted from open to open.

この吐出弁体（弁作用部）は、静止モードにおいてピストン側の吐出弁座と強く密接し、かつ、内容物放出操作の初期段階のときはこの密接状態を解除して吐出弁の開状態が設定され、内容物放出操作の終了時には当該開状態から当該密接状態に復帰するように、一時変形しえる強弾性状のものである。   This discharge valve body (valve action portion) is in close contact with the piston-side discharge valve seat in the stationary mode, and at the initial stage of the content discharge operation, this close state is released and the discharge valve is opened. It is set and is a strong elastic material that can be temporarily deformed so as to return to the close state from the open state at the end of the content discharge operation.

そのため、静止モードの吐出弁体の弁作用部を変形させるための放出操作に必要な操作部材の作動荷重が大きくなり、子供や女性などにとってはハードな内容物放出操作を強いられることになりかねない。   Therefore, the operating load of the operation member necessary for the discharge operation for deforming the valve action part of the discharge valve body in the stationary mode increases, and it may be forced to perform a hard content discharge operation for children and women. Absent.

この作動荷重を少しでも小さくするため、本発明では、吐出弁体が、放出操作初期段階のハウジング内部空間域の内容物圧力増加にともないその受圧方向に移動できるようにしている。   In order to reduce this operating load as much as possible, in the present invention, the discharge valve body is allowed to move in the pressure receiving direction as the content pressure increases in the housing internal space at the initial stage of the discharge operation.

すなわち、ハウジング内部空間域の内容物圧力が増加したときに吐出弁体とともに移動するスライド部材を新たに設けている。   That is, a slide member that moves together with the discharge valve body when the content pressure in the housing internal space increases is newly provided.

このスライド部材の採用にともない、内容物放出操作時における操作部材の作動荷重を従来の吐出弁体変形態様の内容物放出操作の場合よりも小さくして、利用者の内容物放出操作のソフト化，利便化を図ることを目的とする。   With the adoption of this slide member, the operating load of the operation member at the time of the content discharge operation is made smaller than in the case of the content discharge operation of the conventional discharge valve body deformation mode, and the user's content discharge operation is made soft The purpose is to improve convenience.

また、ピストンを静止モード位置に付勢するための弾性部材を、放出対象内容物の収容空間域や通路空間域などの外側にいわば隔離された形で設けて、当該内容物との化学反応などに基づく当該弾性部材の変性，劣化などを抑止し、内容物放出操作の長期にわたるソフト化，利便化を図ることを目的とする。   Also, an elastic member for urging the piston to the stationary mode position is provided in an isolated form outside the accommodation space area or passage space area of the contents to be released, and chemical reaction with the contents, etc. The purpose is to prevent the modification and deterioration of the elastic member based on the above, and to make the contents release operation long-term soft and convenient.

本発明は、以上の課題を次のようにして解決する。
（１）内容物放出操作（例えば後述のスパウト９の操作）に連動して静止モード位置のピストン（例えば後述のピストン５）が弾性力（例えば後述のアウタースプリング８の弾性力）に抗しながらハウジングの内部（例えば後述のハウジング２の内部）を第一方向（例えば図示下方向）に移動するときの、吸込弁（例えば後述の吸込弁体４，吸込弁座２ｄ）と吐出弁（例えば後述の吐出弁体６，吐出弁座５ｇ，５ｈ）との間のハウジング内部空間域（例えば後述のハウジング内部空間域Ａ）に収容された内容物の圧力増加により、前記吐出弁が閉状態の静止モードから開状態の作動モードへと移行するポンプ機構において、
前記吐出弁の構成要素であって、前記ピストンの一部からなる吐出弁座（例えば後述の吐出弁座５ｇ，５ｈ）と、
前記吐出弁の構成要素であって、前記内容物の圧力増加にともない前記弾性力に抗しながら前記吐出弁座から離れる第二方向に全体が移動する吐出弁体（例えば後述の吐出弁体６）と、
前記ピストンの外回り部分に配設されて、前記第一方向への移動が前記ハウジングとの当接作用により制限され、かつ、前記内容物放出操作の初期段階のとき、前記圧力増加に基づいて前記吐出弁体との一体化状態により前記第二方向へ連動し、前記作動モードでは前記吐出弁体から離間する環状のスライド部材（例えば後述のスライドリング７）と、
前記ピストンと前記スライド部材との間に配設されて前記弾性力を付与する弾性部材（例えば後述のアウタースプリング８）と、を備え、
前記ピストンは、
前記作動モードのとき、前記吐出弁体と当接して、前記吐出弁の開状態を設定保持するとともに、前記第一方向への移動が制限された前記スライド部材を前記吐出弁体から離間させる吐出弁体当接部（例えば後述の環状垂下部５ｄ）を有し、
前記スライド部材および前記弾性部材は、
前記ピストンの外周面および前記ハウジングの内周面それぞれと、前記吐出弁体との内容物シール作用部分（例えば後述の上外側逆スカート部６ａ，下外側スカート部６ｂ、上内側逆スカート部６ｃ）のシール外側空間域に、前記内容物からの隔離状態で設けられている、
構成態様のポンプ機構を用いる。
（２）上記（１）において、
前記ピストンは、
前記弾性部材の一方部分（例えば後述のアウタースプリング８の上端部分）に対する周方向の外周面受け部（例えば後述の環凸状部５ｃ）が形成された筒状部（例えば後述のピストン上部５ａ）を有し、
前記スライド部材は、
前記弾性部材の他方部分（例えば後述のアウタースプリング８の下端部分）に対する内周面受け部（例えば後述の環状段部７ｂ）が形成されたリング状部である、
構成態様のポンプ機構を用いる。
（３）上記（１），（２）において、
前記吐出弁座は、
前記吐出弁体が静止モード位置から前記第二方向に移動する際、その所定長の初期移動後にはじめて当該吐出弁体と離間する態様の、形状（例えば後述の環壁状の吐出弁座５ｈの形状）を有している、
構成態様のポンプ機構を用いる。
The present invention solves the above problems as follows.
(1) A piston (for example, a later-described piston 5) in a stationary mode position resists an elastic force (for example, an elastic force of an outer spring 8 described later) in conjunction with a content discharge operation (for example, an operation of a spout 9 described later). A suction valve (for example, a suction valve body 4, which will be described later, a suction valve seat 2d) and a discharge valve (for example, which will be described later) when the interior of the housing (for example, the interior of a housing 2 which will be described later) moves in a first direction (for example, the downward direction in the figure). stationary discharge valve body 6, a discharge valve seat 5g, the pressure increase in the housing interior region (e.g. below the housing interior space region a) in the contained contents between 5h), the discharge valve is closed In the pump mechanism that transitions from the mode to the open operating mode ,
A discharge valve seat (for example, discharge valve seats 5g and 5h described later), which is a component of the discharge valve and is a part of the piston;
A discharge valve body that is a component of the discharge valve and moves in the second direction away from the discharge valve seat while resisting the elastic force as the pressure of the contents increases (for example, a discharge valve body 6 described later) )When,
Disposed in the outer periphery of the piston , the movement in the first direction is limited by the abutting action with the housing, and at the initial stage of the content discharge operation, based on the pressure increase, An annular slide member (for example, a slide ring 7 described later) that is interlocked in the second direction by the integrated state with the discharge valve body and is separated from the discharge valve body in the operation mode ;
An elastic member (for example, an outer spring 8 to be described later) disposed between the piston and the slide member to apply the elastic force;
The piston is
In the operation mode, a discharge that contacts the discharge valve body to set and hold the open state of the discharge valve, and separates the slide member restricted in the first direction from the discharge valve body A valve body contact portion (for example, an annular hanging portion 5d described later),
The slide member and the elastic member are
Contents sealing action portions between the outer peripheral surface of the piston and the inner peripheral surface of the housing and the discharge valve body (for example, an upper outer reverse skirt portion 6a, a lower outer skirt portion 6b, and an upper inner reverse skirt portion 6c described later) Is provided in an isolated space from the contents in the outer space area of the seal,
The pump mechanism of the configuration aspect is used.
(2) In (1 ) above,
The piston is
A cylindrical portion (for example, a piston upper portion 5a described later) in which a circumferential outer peripheral surface receiving portion (for example, a ring convex portion 5c described later) is formed with respect to one portion (for example, an upper end portion of an outer spring 8 described later) of the elastic member. Have
The slide member is
It is a ring-shaped part in which an inner peripheral surface receiving part (for example, an annular step part 7b to be described later) is formed with respect to the other part of the elastic member (for example, a lower end part of an outer spring 8 to be described later).
The pump mechanism of the configuration aspect is used.
(3) In the above (1) and (2),
The discharge valve seat is
When the discharge valve body moves in the second direction from the stationary mode position, the shape (for example, the ring-wall-like discharge valve seat 5h described later) of the aspect that is separated from the discharge valve body only after the predetermined length of initial movement is obtained. Shape),
The pump mechanism of the configuration aspect is used.

本発明は、以上の構成からなるポンプ機構およびこのポンプ機構を用いたポンプ式製品を対象としている。   The present invention is directed to a pump mechanism having the above-described configuration and a pump-type product using the pump mechanism.

本発明は以上の課題解決手段により、
(11)内容物放出操作時における操作部材の作動荷重を従来の吐出弁体変形態様の内容物放出操作の場合よりも小さくして、利用者の内容物放出操作のソフト化，利便化を図る、
(12)ピストンを静止モード位置に付勢するための弾性部材の、放出対象内容物との化学反応などに基づく変性，劣化を抑止する、
ことなどができる。 The present invention is based on the above problem solving means.
(11) The operating load of the operation member during the content discharge operation is made smaller than in the case of the content discharge operation of the conventional discharge valve body deformation mode, so that the user can soften and improve the content discharge operation. ,
(12) Suppressing denaturation and deterioration of the elastic member for biasing the piston to the stationary mode position based on the chemical reaction with the contents to be released.
You can do that.

ポンプ機構の静止モードを示す説明図である。It is explanatory drawing which shows the stationary mode of a pump mechanism. 図１のポンプ機構の吐出弁が開く直前の状態を示す説明図である。It is explanatory drawing which shows the state just before the discharge valve of the pump mechanism of FIG. 1 opens. 図２に続く内容物放出操作により吐出弁が開いた作動モード（内容物放出状態）を示す説明図である。It is explanatory drawing which shows the operation mode (content discharge | release state) which the discharge valve opened by the content discharge | release operation following FIG. ポンプ機構における蓄圧式吐出弁座(a)および直圧式吐出弁座(b)を示す説明図である。It is explanatory drawing which shows the pressure accumulation type discharge valve seat (a) and direct pressure type discharge valve seat (b) in a pump mechanism.

図１〜図４に基づいて本発明の実施形態を説明する。   An embodiment of the present invention will be described with reference to FIGS.

以上の図で用いるアルファベット付き参照番号の構成要素（例えば開口首部１ａ）は原則として、当該参照番号の数字部分の構成要素（例えば容器本体１）の一部であることを示している   The components of the reference numbers with alphabets used in the above figures (for example, the opening neck portion 1a) are in principle shown to be a part of the components of the numerical portions of the reference numbers (for example, the container body 1).

図１〜図４において、
１は周知のポンプ作用により外部空間域に放出される内容物を収容した容器本体，
１ａは当該容器本体の開口首部，
２は次回放出対象の内容物を収容する筒状のハウジング，
２ａは当該ハウジングの上端側に形成された環鍔状部，
２ｂは環鍔状部２ａの下方のハウジング周面に形成されて、ポンプ式製品がその作動モード終了後の静止モードへの復帰時に、容器本体１の内部へその減圧防止用の外気を供給するための孔部，
２ｃは当該ハウジングの下端側に形成された小径筒状部，
２ｄは小径筒状部２ｃの内周面上下方向に図示の漏斗形状態様で形成された環テーパ状の吸込弁座，
２ｅは吸込弁座２ｄの上方のハウジング内周面部分に形成された環凹状部，
をそれぞれ示している。 1-4,
1 is a container body containing the contents discharged to the external space by a known pump action,
1a is the opening neck of the container body,
2 is a cylindrical housing for storing the contents to be released next time,
2a is a ring-shaped part formed on the upper end side of the housing,
2b is formed on the peripheral surface of the housing below the ring-shaped portion 2a, and supplies the outside air for preventing decompression to the inside of the container body 1 when the pump type product returns to the stationary mode after the operation mode ends. Holes for,
2c is a small diameter cylindrical portion formed on the lower end side of the housing,
2d is a ring-tapered suction valve seat formed in the illustrated funnel shape in the vertical direction of the inner peripheral surface of the small-diameter cylindrical portion 2c;
2e is an annular recess formed in the inner peripheral surface of the housing above the suction valve seat 2d;
Respectively.

また、
３は容器本体１の開口首部１ａと螺合して、ハウジング２を当該開口首部に固定するための筒状のネジキャップ，
３ａは開口首部１ａの外周面と螺合する内周面部分を備えた下側筒状部，
３ｂは下側筒状部３ａの内周面上端側に形成されて、ハウジング２の環鍔状部２ａを嵌合保持するための環凸状部，
３ｃは下側筒状部３ａからその上方に連続形成された上外側筒状部，
３ｄは上外側筒状部３ｃの内側に形成されて後述のピストン５およびスライドリング７の上動位置をそれぞれ規制する上内側筒状部，
３ｅは上内側筒状部３ｄの内周面側に形成されてピストン５の上動位置を規制する環状上逆段部，
３ｆは上内側筒状部３ｄの内周面側に形成されてスライドリング７の上動位置を規制する環状下逆段部，
をそれぞれ示している。 Also,
3 is a cylindrical screw cap for screwing into the opening neck 1a of the container body 1 to fix the housing 2 to the opening neck.
3a is a lower cylindrical portion having an inner peripheral surface portion that is screwed with the outer peripheral surface of the opening neck 1a,
3b is formed on the upper end side of the inner peripheral surface of the lower cylindrical portion 3a, and an annular convex portion for fitting and holding the annular flange portion 2a of the housing 2,
3c is an upper outer cylindrical portion continuously formed above the lower cylindrical portion 3a,
3d is an upper inner cylindrical portion that is formed inside the upper outer cylindrical portion 3c and restricts the upward movement positions of a piston 5 and a slide ring 7 described later,
3e is an annular upper reverse step portion that is formed on the inner peripheral surface side of the upper inner cylindrical portion 3d and restricts the upward movement position of the piston 5;
3f is an annular lower reverse step portion that is formed on the inner peripheral surface side of the upper inner cylindrical portion 3d and restricts the upward movement position of the slide ring 7,
Respectively.

また、
４はハウジング２の吸込弁座２ｄに対して接離する上下動可能な吸込弁体，
４ａは当該吸込弁体の下端側に形成され、吸込弁座２ｄとの直接の接離対象として作用する下側曲面を備えた半球状の弁体作用部，
４ｂは弁体作用部４ａからその上方に連続形成されて当該弁体作用部を下方に付勢する螺旋形状弾性部，
４ｃは螺旋形状弾性部４ｂの上端側に連続形成されて、その外周部分がハウジング２の環凹状部２ｅと係合する環状固定部，
をそれぞれ示している。 Also,
4 is a suction valve body that can move up and down and move toward and away from the suction valve seat 2d of the housing 2;
4a is a hemispherical valve body action part formed on the lower end side of the suction valve body and having a lower curved surface that acts as a direct contact / separation object with the suction valve seat 2d,
4b is a spiral elastic portion that is continuously formed above the valve element action portion 4a and biases the valve element action portion downward;
4c is an annular fixing portion which is continuously formed on the upper end side of the helical elastic portion 4b and whose outer peripheral portion engages with the annular concave portion 2e of the housing 2.
Respectively.

また、
５はその下側部分がハウジング２の内部に配設されて内容物放出用の通路部を備えた鞘状のピストン（ピストン上部５ａ＋ピストン下部５ｂ），
５ａは当該ピストンの上側を構成する筒状のピストン上部（筒状部），
５ｂは当該ピストンの下側を構成する鞘状部材であって、外周面の上側部分がピストン上部５ａの下側内周面と嵌合した状態のピストン下部，
５ｃはピストン上部５ａの外周面周方向に形成されて後述のアウタースプリング８の上端部分を受ける環凸状部（外周面受け部），
５ｄはピストン上部５ａの下端側であって後述の吐出弁体６の上内側逆スカート部６ｃが密接する内周面を備えた環状垂下部，
５ｅはピストン下部５ｂに形成されてその内外の各空間域を連通させる内容物通過用の横孔部，
５ｆはピストン下部５ｂの下端側であって後述の弁体作用部６ｄとの間の吐出弁作用を呈する環鍔状部，
５ｇは環鍔状部５ｆの内端周方向に形成されて、静止モード位置の弁体作用部６ｄを密接状態に保持する環凹状の吐出弁座，
５ｈは環凹状の吐出弁座５ｇの内側周面におけるピストン下部５ｂの上側部分よりも大径かつ略同一径の上下方向ストレート部分からなり、内容物放出操作の初期段階で後述の吐出弁体６およびスライドリング７が上方向に連動する際に、その弁体作用部６ｄとの密接状態を継続する蓄圧ポンプ仕様の環壁状の吐出弁座（図１〜図３，図４(a)参照），
５ｊは周方向に飛び飛びで環壁状の吐出弁座５ｈから上方向に連続する態様で形成されて、内容物放出操作時の吐出弁を操作初期段階の閉状態から開状態にシフトさせる機能を備えた上下方向のリブ状部（図１〜図３，図４(a)参照），
５ｋは環壁状の吐出弁座５ｈに代え、環凹状の吐出弁座５ｇの内側周面下端から図示の漏斗形状態様で形成されて、弁体作用部６ｄとの接離関係が内容物放出操作直後にそれまでの閉状態から開状態へとシフトする直圧ポンプ仕様の環テーパ状部（図４(b)参照），
をそれぞれ示している。 Also,
5 is a sheath-shaped piston (piston upper part 5a + piston lower part 5b) having a lower part disposed inside the housing 2 and provided with a passage for discharging contents.
5a is a cylindrical piston upper part (cylindrical part) constituting the upper side of the piston,
5b is a sheath-like member that constitutes the lower side of the piston, and the upper part of the outer peripheral surface is fitted to the lower inner peripheral surface of the piston upper part 5a;
5c is an annular convex portion (outer peripheral surface receiving portion) that is formed in the circumferential direction of the outer peripheral surface of the piston upper portion 5a and receives the upper end portion of the outer spring 8 to be described later.
5d is a lower end side of the piston upper portion 5a, and an annular hanging portion having an inner peripheral surface with which an upper inner reverse skirt portion 6c described later is in close contact,
5e is a side hole for passing the contents that is formed in the piston lower part 5b and communicates with the inner and outer space.
5f is a lower end side of the piston lower part 5b, and an annular flange-like part that exhibits a discharge valve action with a valve element action part 6d described later,
5g is an annular concave discharge valve seat formed in the circumferential direction of the inner end of the ring-shaped portion 5f to hold the valve element action portion 6d in the stationary mode position in a close state.
5h is a vertical straight portion having a diameter larger than that of the upper portion of the piston lower portion 5b on the inner circumferential surface of the ring-shaped discharge valve seat 5g and substantially the same diameter, and a discharge valve body 6 which will be described later in the initial stage of the content discharge operation. When the slide ring 7 is interlocked in the upward direction, an annular wall-shaped discharge valve seat (see FIGS. 1 to 3 and FIG. 4 (a)) that continues to be in close contact with the valve element acting portion 6d. ),
5j is formed in such a manner that it jumps in the circumferential direction and continues upward from the annular wall-shaped discharge valve seat 5h, and has a function of shifting the discharge valve during the content discharge operation from the closed state in the initial operation stage to the open state. Equipped with a vertical rib-shaped part (see FIGS. 1 to 3 and FIG. 4 (a)),
5k is formed in the illustrated funnel shape from the lower end of the inner peripheral surface of the ring-shaped discharge valve seat 5g in place of the ring-wall-shaped discharge valve seat 5h, and the contact / separation relationship with the valve body action portion 6d is the content release. Directly pumped ring taper that shifts from the closed state to the open state immediately after operation (see Fig. 4 (b)),
Respectively.

また、
６はピストン上部５ａの環状垂下部５ｄおよびピストン下部５ｂの環鍔状部５ｆの間を含むピストン周囲部分に上下動可能な形で配設された環状の吐出弁体，
６ａはハウジング２の内周面に密接する上外側逆スカート部，
６ｂは同じくハウジング２の内周面に密接する下外側スカート部，
６ｃは環状垂下部５ｄの内周面に密接する上内側逆スカート部，
６ｄは吐出弁を構成し、環凹状の吐出弁座５ｇ，環壁状の吐出弁座５ｈやリブ状部５ｊに密接する下内側逆スカート状の弁体作用部，
をそれぞれ示している。 Also,
6 is an annular discharge valve body arranged in a vertically movable manner on the periphery of the piston including between the annular hanging portion 5d of the piston upper portion 5a and the ring-shaped portion 5f of the piston lower portion 5b.
6a is an upper and outer reverse skirt portion that is in close contact with the inner peripheral surface of the housing 2,
6b is a lower outer skirt portion that is also in close contact with the inner peripheral surface of the housing 2,
6c is an upper inner reverse skirt portion that is in close contact with the inner peripheral surface of the annular hanging portion 5d,
6d constitutes a discharge valve, an annular concave discharge valve seat 5g, a ring wall-shaped discharge valve seat 5h, and a lower inner reverse skirt-like valve body action portion in close contact with the rib-like portion 5j,
Respectively.

また、
７はその全体がハウジング２の上側内周面に案内されながら上下動可能で、吐出弁体６と上方向に連動し、後述のアウタースプリング８の弾性力で下方向に付勢されてハウジングの環鍔状部２ａに当接した状態の静止位置をとりえるスライドリング（スライド部材，リング状部），
７ａは環鍔状部２ａの内側上面部分に当接保持される環状逆段部，
７ｂは後述のアウタースプリング８の下端部分を受ける環状段部（内周面受け部），
７ｃは静止モードや放出操作初期段階において吐出弁体６の上外側逆スカート部６ａの内周面と当接する漏斗形状態様の環テーパ状底面，
をそれぞれ示している。 Also,
7 can move up and down while being guided by the upper inner peripheral surface of the housing 2, and is linked to the discharge valve body 6 in the upward direction, and is urged downward by the elastic force of the outer spring 8 to be described later. A slide ring (slide member, ring-shaped part) that can take a stationary position in contact with the ring-shaped part 2a;
7a is an annular reverse step portion that is held in contact with the inner upper surface portion of the ring-shaped portion 2a,
7b is an annular step portion (inner peripheral surface receiving portion) for receiving a lower end portion of an outer spring 8 described later,
7c is an annular tapered bottom surface in a funnel shape that comes into contact with the inner peripheral surface of the upper and outer reverse skirt portions 6a of the discharge valve body 6 in the stationary mode and the initial stage of the discharge operation;
Respectively.

また、
８はピストン上部５ａの環凸状部５ｃとスライドリング７の環状段部７ｂとの間に配設されて、すなわち放出対象内容物が流入することのない空間域に配設されてピストン５を上方向に付勢し、スライドリング７を下方向に付勢することによりそれぞれを静止モード位置に設定するコイル状のアウタースプリング（弾性部材），
９はピストン上部５ａに取り付けられて、押下げ操作部および内容物通路部として作用するスパウト，
９ａは外部空間域への内容物通路部，
９ｂは内容物通路部９ａの放出口，
９ｃは当該スパウトに取り付けられて放出口９ｂを備えたノズル，
９ｄは当該スパウトの押下げ操作面，
をそれぞれ示している。 Also,
8 is disposed between the annular convex portion 5c of the piston upper portion 5a and the annular step portion 7b of the slide ring 7, that is, disposed in a space area where the contents to be discharged do not flow, A coiled outer spring (elastic member) that biases upward and biases the slide ring 7 downward to set each to a stationary mode position;
9 is a spout attached to the piston upper part 5a and acting as a push-down operation part and a content passage part,
9a is a content passage to the external space,
9b is an outlet of the content passage 9a,
9c is a nozzle attached to the spout and provided with a discharge port 9b;
9d is a pressing operation surface of the spout,
Respectively.

また、
１０は容器本体１の開口首部１ａとハウジング２の環鍔状部２ａとの間に設定されて容器本体内容物のシール作用を呈する環状パッキン，
１１はハウジング２の小径筒状部２ｃに取り付けられた状態で容器本体１からハウジング内部への内容物通路部として作用する吸上げパイプ，
Ａは吸込弁と吐出弁との間のハウジング内部に画定されて、静止モードのとき、次回の放出対象内容物が収容されるハウジング内部空間域，
をそれぞれ示している。 Also,
10 is an annular packing which is set between the opening neck 1a of the container body 1 and the ring-shaped part 2a of the housing 2 and exhibits the sealing action of the contents of the container body.
11 is a suction pipe that acts as a content passage portion from the container body 1 to the inside of the housing while being attached to the small-diameter cylindrical portion 2c of the housing 2.
A is defined inside the housing between the suction valve and the discharge valve, and in the stationary mode, the housing internal space area in which the contents to be released next time are accommodated.
Respectively.

ここで、容器本体１，ハウジング２，ネジキャップ３，吸込弁体４，ピストン５，吐出弁体６，スライドリング７，スパウト９，吸上げパイプ１１はそれぞれ、ポリプロピレン，ポリエチレン，ポリアセタール，ナイロン，ポリブチレンテレフタレートなどからなるプラスチック製のものである。   Here, the container body 1, housing 2, screw cap 3, suction valve body 4, piston 5, discharge valve body 6, slide ring 7, spout 9 and suction pipe 11 are respectively polypropylene, polyethylene, polyacetal, nylon, poly It is made of plastic such as butylene terephthalate.

アウタースプリング８は金属製や合成樹脂製のもの、環状パッキン１０はゴム製や合成樹脂製のものである。   The outer spring 8 is made of metal or synthetic resin, and the annular packing 10 is made of rubber or synthetic resin.

上述したように吸込弁座２ｄと吸込弁体４（弁体作用部４ａ）とで吸込弁が形成され、また環凹状の吐出弁座５ｇ，環壁状の吐出弁座５ｈと吐出弁体６（弁体作用部６ｄ）とで吐出弁が形成されている。   As described above, the suction valve seat 2d and the suction valve body 4 (valve action portion 4a) form a suction valve, and the ring-shaped discharge valve seat 5g, the ring-walled discharge valve seat 5h, and the discharge valve body 6 A discharge valve is formed by the (valve element action portion 6d).

内容物放出操作がおこなわれていない図１の静止モードのとき、これら吸込弁および吐出弁がともに閉じ、吸込弁と吐出弁との間のハウジング内部空間域Ａには内容物が収容されている。この収容内容物が次回の放出対象である。   When the content discharge operation is not performed, the suction valve and the discharge valve are both closed in the stationary mode of FIG. 1, and the content is accommodated in the housing internal space A between the suction valve and the discharge valve. . This stored content is the next release target.

図示の実施形態の基本的特徴は、
(21)静止モードから内容物放出状態に移行するための内容物放出操作の初期段階で、吸込弁と吐出弁との間のハウジング内部空間域Ａの容積が減少してその収容内容物の圧力が増加するときに、吐出弁体６の全体が上動してその弁座から離間するようにした、すなわちこれまでのように吐出弁体６の弁体作用部６ｄが弾性変形して吐出弁座５ｇ，５ｈから離間するのではなく、
(22)吐出弁体６の全体が上動する際にこれと連動し、かつ、その最下位置がハウジング２によって設定されるスライドリング７を設け、
(23)内容物放出操作用のスパウト９と一体で吐出弁座５ｇ，５ｈを備えたピストン５と、スライドリング７との間の放出対象内容物が流入しえない空間域に、当該ピストンおよび当該スライドリングをそれぞれ図１の静止モード位置の方に付勢するためのアウタースプリング８を配設した、
ことなどである。 The basic features of the illustrated embodiment are:
(21) At the initial stage of the content discharge operation for shifting from the stationary mode to the content discharge state, the volume of the housing internal space A between the suction valve and the discharge valve decreases and the pressure of the stored content When the flow rate increases, the entire discharge valve body 6 moves upward and is separated from the valve seat, that is, the valve body action portion 6d of the discharge valve body 6 is elastically deformed as before, and the discharge valve Rather than being separated from the seats 5g and 5h,
(22) A slide ring 7 is provided which is interlocked with the entire discharge valve body 6 when it moves upward and whose lowest position is set by the housing 2;
(23) The piston and the piston 5 having the discharge valve seats 5g and 5h integrated with the spout 9 for content discharge operation and the slide ring 7 are placed in a space area where the content to be discharged cannot flow. Outer springs 8 for urging the slide rings toward the stationary mode position in FIG.
And so on.

このような基本的特徴を有する蓄圧式，直圧式それぞれのポンプ機構は、
(31)スパウト９の放出操作に必要な作動荷重を小さくできる、例えば従来の吐出弁体が変形するポンプ機構での作動荷重「3.0kgf〜4.0kgf」に対して略「2.0kgf」程度の力でよく、内容物放出操作のソフト化を図ることができ、
(32)ピストン５およびスパウト９を静止モード位置に付勢するアウタースプリング８が放出対象内容物と接触しない空間域に配設されているので、内容物との化学反応などに基づく当該スプリングの変性，劣化を阻止することができる。 The pressure accumulation type and direct pressure type pump mechanisms having such basic features are as follows:
(31) The operating load required for the spout 9 discharge operation can be reduced, for example, a force of about “2.0 kgf” with respect to the operating load “3.0 kgf to 4.0 kgf” in the conventional pump mechanism in which the discharge valve body is deformed. Can be used to soften the contents release operation,
(32) Since the outer spring 8 that biases the piston 5 and the spout 9 to the stationary mode position is disposed in a space area that does not come into contact with the contents to be discharged, the spring is modified based on chemical reaction with the contents. , Can prevent deterioration.

なお、容器本体１に取り付ける前のいわばポンプユニット（ハウジング２，ネジキャップ３，吸込弁体４，ピストン５，吐出弁体６，スライドリング７，アウタースプリング８，スパウト９，環状パッキン１０，吸上げパイプ１１）の組立手順は、例えば次のようになる。   It should be noted that the pump unit (housing 2, screw cap 3, suction valve body 4, piston 5, discharge valve body 6, slide ring 7, outer spring 8, spout 9, annular packing 10, sucking up before being attached to the container body 1 The assembly procedure of the pipe 11) is, for example, as follows.

(41)ピストン上部５ａの下方からアウタースプリング８，スライドリング７，吐出弁体６を順にセットした後、その下方からピストン下部５ｂを取り付けてピストン５とし、
(42)吸込弁体４をハウジング２にその上方から取り付け、かつ環状パッキン１０をハウジング２の環鍔状部２ａにその下方から嵌合させ、
(43)次に、上記(41)のピストン５を上記(42)のハウジング２にその上方から差し込み、
(44)次に、ネジキャップ３をハウジング２の環鍔状部２ａにその上方から取り付け、
(45)次に、スパウト９をピストン５の上端に取り付け、
(46)任意の段階で、ハウジング２の小径筒状部２ｃに吸上げパイプ１１を取り付ける。 (41) After setting the outer spring 8, the slide ring 7, and the discharge valve body 6 in this order from the lower part of the piston upper part 5a, the piston lower part 5b is attached from the lower part to make the piston 5.
(42) The suction valve body 4 is attached to the housing 2 from above, and the annular packing 10 is fitted to the ring-shaped portion 2a of the housing 2 from below,
(43) Next, the piston 5 of (41) is inserted into the housing 2 of (42) from above,
(44) Next, the screw cap 3 is attached to the ring-shaped part 2a of the housing 2 from above,
(45) Next, the spout 9 is attached to the upper end of the piston 5,
(46) The suction pipe 11 is attached to the small diameter cylindrical portion 2c of the housing 2 at an arbitrary stage.

図１は蓄圧式ポンプ機構の静止モード、すなわちスパウト９がまだ押下げられていない状態を示している。   FIG. 1 shows a stationary mode of the pressure accumulating pump mechanism, that is, a state where the spout 9 is not yet pushed down.

静止モードでは、概略、アウタースプリング８の弾性作用により、ピストン５およびこれと一体のスパウト９、ならびに当該ピストンにいわば持上げられた形の吐出弁体６がそれぞれ最上動位置に設定され、かつ、スライドリング７がその最下動位置に設定されている。   In the stationary mode, the piston 5 and the spout 9 integral with the piston 5 and the discharge valve body 6 lifted up to the piston are set to the uppermost moving position by the elastic action of the outer spring 8 and slide. Ring 7 is set to its lowest position.

この静止モードのとき、
(51)前回の内容物放出操作の終了にともなって、容器本体１の内容物が吸上げパイプ１１および開状態の吸込弁（吸込弁座２ｄ，弁体作用部４ａ）を介してハウジング内部空間域Ａに流入済みであり、
(52)吸込弁体４の弁体作用部４ａは、容器本体内容物がハウジング内部空間域Ａに流入した後、その上の螺旋形状弾性部４ｂの作用により下動して、ハウジング２の吸込弁座２ｄに密接した閉状態に設定され、
(53)吐出弁体６も、その弁体作用部６ｄがピストン下部５ｂの環凹状の吐出弁座５ｇ，環壁状の吐出弁座５ｈにそれぞれ当接した閉状態に設定されている。 In this still mode,
(51) With the end of the previous content discharge operation, the contents of the container body 1 are moved into the housing internal space via the suction pipe 11 and the opened suction valve (suction valve seat 2d, valve body action portion 4a). Has already flowed into Zone A,
(52) The valve body action part 4a of the suction valve body 4 is moved downward by the action of the spiral elastic part 4b on the inside of the housing internal space A after the contents of the container body flow into the housing space A, and the suction of the housing 2 Set in a closed state close to the valve seat 2d,
(53) The discharge valve body 6 is also set in a closed state in which the valve body action portion 6d is in contact with the annular concave discharge valve seat 5g and the annular wall discharge valve seat 5h of the piston lower part 5b.

また、
(61)ピストン５は、アウタースプリング８の弾性作用により上方に付勢されてその環凸状部５ｃがネジキャップ３の環状上逆段部３ｅに係止され、
(62)スライドリング７は、アウタースプリング８の弾性作用により下方に付勢されてその環状逆段部７ａがハウジング２の環鍔状部２ａの上面部分に係止され、かつ、その環テーパ状底面７ｃが吐出弁体６の上外側逆スカート部６ａの内面部分に当接している。 Also,
(61) The piston 5 is urged upward by the elastic action of the outer spring 8, and the annular convex portion 5 c is locked to the annular upper reverse step portion 3 e of the screw cap 3.
(62) The slide ring 7 is urged downward by the elastic action of the outer spring 8 so that the annular reverse step portion 7a is locked to the upper surface portion of the ring collar portion 2a of the housing 2, and the ring taper shape thereof. The bottom surface 7 c is in contact with the inner surface portion of the upper and outer reverse skirt portion 6 a of the discharge valve body 6.

このように静止モードのハウジング内部空間域Ａは、その上流側の吸上げパイプ１１およびその下流側の横孔部５ｅ，内容物通路部９ａなどのいずれとも連通していない。   As described above, the housing internal space A in the stationary mode does not communicate with any of the suction pipe 11 on the upstream side, the lateral hole portion 5e on the downstream side, the content passage portion 9a, and the like.

図２は、図１のポンプ機構のスパウト９の押下げ操作面９ｄを利用者が下方に押したときの初期段階を示している。   FIG. 2 shows an initial stage when the user presses down the pressing operation surface 9d of the spout 9 of the pump mechanism of FIG.

押下げ操作にともなうハウジング内部空間域Ａの容積減少によりその中の内容物圧力が初期増加し、この圧力増加にともない吐出弁体６の全体およびスライドリング７が固定状態のハウジング２（および下動状態のピストン５）に対し少しだけ押し上げられる。   As the volume of the internal space A of the housing decreases as a result of the pressing operation, the content pressure in the housing initially increases. As the pressure increases, the entire discharge valve body 6 and the slide ring 7 are fixed. The piston 5) is pushed up slightly.

図２は、この押上げにともない、吐出弁体６の弁体作用部６ｄのいわば当接相手が環壁状の吐出弁座５ｈからその直上のリブ状部５ｊにシフトする直前段階を示している。すなわち吐出弁は閉状態にとどまったままである。   FIG. 2 shows a stage immediately before the so-called contact partner of the valve body action portion 6d of the discharge valve body 6 shifts from the annular wall-shaped discharge valve seat 5h to the rib-like portion 5j immediately above the push-up. Yes. That is, the discharge valve remains closed.

この直前段階のとき、ピストン下部５ｂの環状垂下部５ｄの下端面部分はまだ吐出弁体６に当接していない。   At the immediately preceding stage, the lower end surface portion of the annular hanging portion 5d of the piston lower portion 5b has not yet contacted the discharge valve body 6.

図１の静止モード位置から図２の吐出弁開状態へのシフト直前段階までの間、吐出弁体６は環壁状の吐出弁座５ｈと密接したままである。   The discharge valve body 6 remains in close contact with the ring-walled discharge valve seat 5h from the stationary mode position of FIG. 1 to the stage immediately before the shift to the discharge valve open state of FIG.

この間、ハウジング内部空間域Ａに収容された内容物はその圧力が増加したままのいわゆる蓄圧状態に設定されている。   During this time, the contents stored in the housing internal space A are set in a so-called pressure accumulation state in which the pressure remains increased.

図３は、スパウト９およびピストン５が図２の位置よりも下動し、吐出弁がそれまでの閉状態から開状態にシフトした作動モードを示している。   FIG. 3 shows an operation mode in which the spout 9 and the piston 5 are moved downward from the position of FIG. 2 and the discharge valve is shifted from the closed state to the open state.

この作動モードのとき、
(71)吐出弁体６は、ハウジング内部空間域Ａの内容物圧力によりピストン下部５ｂに対してさらに上動し、下内側逆スカート状の弁体作用部６ｄの密接相手がそれまでの環壁状の吐出弁座５ｈからその直上のリブ状部５ｊに変わり、
(72)ピストン上部５ａは、その環状垂下部５ｄの下端面部分が吐出弁体６に当接した状態で下方に駆動され、
(73)スライドリング７は、ピストン上部５ａおよびこれに当接した状態の吐出弁体６が下方へ移動するのにともなって当該吐出弁体から離間した後、アウタースプリング８の弾性作用で図１の静止モード位置に復帰する、すなわちスライドリング７の環状逆段部７ａがハウジング２の環鍔状部２ａに保持された状態に復帰する。 In this mode of operation,
(71) The discharge valve body 6 is further moved upward with respect to the piston lower part 5b by the pressure of the contents in the housing internal space A, and the close inner side of the lower inner reverse skirt-like valve body action part 6d is the ring wall until then. From the discharge valve seat 5h to the rib-like portion 5j immediately above it,
(72) The piston upper portion 5a is driven downward with the lower end surface portion of the annular hanging portion 5d in contact with the discharge valve body 6,
(73) The slide ring 7 is separated from the discharge valve body 6 by the downward movement of the piston upper portion 5a and the discharge valve body 6 in contact with the piston upper portion 5a. Return to the stationary mode position, that is, return to the state where the annular reverse step portion 7 a of the slide ring 7 is held by the ring-shaped portion 2 a of the housing 2.

図３の作動モードでは、上記(31)で記したように弁体作用部６ｄが当接する隣同士のリブ状部５ｊの間に形成された溝状部を介して、ハウジング内部空間域Ａと内容物通路部９ａ，放出口９ｂなどとが連通する。吐出弁が開状態に移行する。   In the operation mode of FIG. 3, as described in the above (31), the housing inner space A and the housing inner space A are interposed via the groove-shaped portion formed between the adjacent rib-shaped portions 5 j with which the valve element acting portion 6 d abuts. The content passage portion 9a and the discharge port 9b communicate with each other. The discharge valve shifts to the open state.

この吐出弁開状態でスパウト９およびピストン５がさらに押し下げられると、ハウジング内部空間域Ａの容積が減少し、この容積減少分に対応した収容済み内容物が放出口９ｂから外部空間域に放出される。   When the spout 9 and the piston 5 are further pushed down in the discharge valve open state, the volume of the housing internal space area A decreases, and the stored contents corresponding to the volume decrease are discharged from the discharge port 9b to the external space area. The

外部空間域への内容物放出径路は図示矢印で示すように、「ハウジング内部空間域Ａ−リブ状部５ｊの間の溝状部−横孔部５ｅ−ピストン５の内容物通路部−スパウト９の内容物通路部９ａ−放出口９ｂ」となる。   As shown by the arrows in the figure, the content discharge path to the external space area is defined as “the groove between the housing internal space area A and the rib-shaped portion 5j—the side hole portion 5e—the content passage portion of the piston 5—the spout 9 Content passage portion 9a-discharge port 9b ".

利用者が押下げ操作面９ｄの下動操作を解除する（押下げ操作面９ｄから手を離す）と、ピストン５およびこれと一体のスパウト９がアウタースプリング８の弾性作用により上方向に移動して図１の静止モード位置に復帰する。   When the user releases the downward operation of the push-down operation surface 9d (releases the hand from the push-down operation surface 9d), the piston 5 and the spout 9 integrated therewith move upward by the elastic action of the outer spring 8. To return to the stationary mode position of FIG.

このピストン５の上方向への復帰動作にともない、
(81)吐出弁体６もピストン下部５ｂの吐出弁座５ｇに持上げられる形で図１の静止モード位置に復帰して、吐出弁がそれまでの開状態から閉状態にシフトし、
(82)ハウジング内部空間域Ａがその容積増加により容器本体１の内部に対し負圧になるので、吸込弁体４（弁体作用部４ａ）が螺旋形状弾性部４ｂの弾性力に抗しながら上昇してハウジング２の吸込弁座２ｄから離間し、
(83)この弁体作用部４ａの離間部分から容器本体１の収容内容物がハウジング内部空間域Ａに流入し、そこでの負圧状態が解消した段階で、吸込弁体４は螺旋形状弾性部４ｂの弾性作用により吸込弁座２ｄとの密接状態に復帰し、
(84)この容器本体１からハウジング内部空間域Ａへの内容物流入に基づく容器本体内部の負圧化を防止すべく、外気が、ハウジング２の孔部２ｂから容器本体内部に流入する。 As the piston 5 returns upward,
(81) The discharge valve body 6 is also lifted by the discharge valve seat 5g of the piston lower part 5b and returned to the stationary mode position in FIG. 1, and the discharge valve is shifted from the open state to the closed state.
(82) Since the housing internal space A becomes negative with respect to the inside of the container main body 1 due to the increase in volume, the suction valve body 4 (valve action part 4a) resists the elastic force of the helical elastic part 4b Ascend and away from the suction valve seat 2d of the housing 2,
(83) The stored contents of the container body 1 flows into the housing internal space A from the separated portion of the valve body action portion 4a, and the suction valve body 4 is formed into a helical elastic portion when the negative pressure state is eliminated. The elastic action of 4b returns to the close state with the suction valve seat 2d,
(84) In order to prevent negative pressure inside the container body due to the inflow of contents from the container body 1 into the housing internal space A, outside air flows into the container body from the hole 2b of the housing 2.

図１の静止モードでは、これらのハウジング内部空間域Ａへの内容物流入動作および容器本体１の内部への外気流入動作がそれぞれ終了している。   In the stationary mode of FIG. 1, the contents inflow operation into the housing internal space A and the outside air inflow operation into the container body 1 are finished.

上記(83)において容器本体１からハウジング内部空間域Ａに流入した内容物が次回の放出対象となる。   In (83) above, the contents that have flowed from the container body 1 into the housing internal space A are the next discharge target.

図４(b)は、直圧式ポンプ機構における吐出弁座形状などを示している。
なお、図４(a)は図１〜図３の蓄圧式ポンプ機構の吐出弁座などを示す説明図である。 FIG. 4B shows a discharge valve seat shape and the like in the direct pressure pump mechanism.
FIG. 4A is an explanatory view showing a discharge valve seat and the like of the pressure accumulating pump mechanism shown in FIGS.

図示の直圧式ポンプ機構の場合、蓄圧式における環壁状の吐出弁座５ｈおよびその直上のリブ状部５ｊの代わりに、環テーパ状部５ｋを形成した態様になっている。   In the case of the illustrated direct pressure pump mechanism, an annular taper portion 5k is formed in place of the ring wall-shaped discharge valve seat 5h and the rib-like portion 5j immediately above the pressure accumulation type.

すなわち、静止モード位置の吐出弁体６の弁体作用部６ｄと密接するのはもっぱら環凹状の吐出弁座５ｇの底面部分である。   That is, it is the bottom portion of the ring-recessed discharge valve seat 5g that is in close contact with the valve body action portion 6d of the discharge valve body 6 in the stationary mode position.

図４(a)の蓄圧式ポンプ機構の場合、静止モード位置の弁体作用部６ｄは当該底面部分に加えて環壁状の吐出弁座５ｈにも密接する。   In the case of the pressure accumulating pump mechanism shown in FIG. 4A, the valve element action portion 6d in the stationary mode position is in close contact with the annular wall discharge valve seat 5h in addition to the bottom surface portion.

そのため、図４(b)の直圧式ポンプ機構の吐出弁体６（弁体作用部６ｄ）は、内容物放出操作開始直後の段階におけるハウジング内部空間域Ａの内容物圧力増加により上動して吐出弁座５ｇから離間して、作動モードへとシフトする。   For this reason, the discharge valve body 6 (valve action portion 6d) of the direct pressure pump mechanism in FIG. 4B is lifted by the increase in the content pressure in the housing internal space A immediately after the start of the content discharge operation. It shifts away from the discharge valve seat 5g and shifts to the operation mode.

本発明が以上の実施形態に限定されないことは勿論であり例えば、
(91)押下げ操作タイプのスパウト９に代えて傾動タイプ（チルトタイプ）の操作部を用いる、
(92)吸込弁および吐出弁として各種タイプのものを用いる、
ようにしてもよい。 Of course, the present invention is not limited to the above embodiments, for example,
(91) Instead of the push-down operation type spout 9, a tilt type operation unit is used.
(92) Use various types of suction and discharge valves,
You may do it.

本発明が適用されるポンプ式製品としては、石けん，消毒剤，化粧品，乳液、洗剤，シャンプー，リンス，洗浄剤，清掃剤，制汗剤，冷却剤，筋肉消炎剤，ヘアスタイリング剤，ヘアトリートメント剤，染毛剤，育毛剤，化粧品，シェービングフォーム，食品，液滴状のもの（ビタミンなど），医薬品，医薬部外品，塗料，園芸用剤，忌避剤（殺虫剤），クリーナー，消臭剤，洗濯のり，ウレタンフォーム，消火器，接着剤，潤滑剤などの各種用途のものがある。   The pump-type products to which the present invention is applied include soaps, disinfectants, cosmetics, emulsions, detergents, shampoos, rinses, cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatments. Agent, hair dye, hair restorer, cosmetics, shaving foam, food, droplets (such as vitamins), pharmaceuticals, quasi-drugs, paints, horticultural agents, repellents (insecticides), cleaners, deodorants There are various uses such as agents, laundry glue, urethane foam, fire extinguishers, adhesives and lubricants.

容器本体に収納する内容物は、液状，クリーム状，ゲル状など種々の形態のものを用いることができ、内容物に配合される成分としては例えば、粉状物，油成分，アルコール類，界面活性剤，高分子化合物，各用途に応じた有効成分，水などが挙げられる。   The contents stored in the container body can be in various forms such as liquid, cream, gel, etc. Examples of ingredients blended in the contents include powdered substances, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

粉状物としては、金属塩類粉末，無機物粉末や樹脂粉末などを用いる。例えば、タルク，カオリン，アルミニウムヒドロキシクロライド（アルミ塩），アルギン酸カルシウム，金粉，銀粉，雲母，炭酸塩，硫酸バリウム，セルロース，これらの混合物などを用いる。   As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

油成分としては、シリコーン油，パーム油，ユーカリ油，ツバキ油，オリーブ油，ホホバ油，パラフィン油，ミリスチン酸，パルミチン酸，ステアリン酸，リノール酸，リノレン酸などを用いる。   As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

アルコール類としては、エタノールなどの１価の低級アルコール，ラウリルアルコールなどの１価の高級アルコール，エチレングリコール，グリセリン，1,3−ブチレングリコールなどの多価アルコールなどを用いる。   Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

界面活性剤としては、ラウリル硫酸ナトリウムなどのアニオン性界面活性剤、ポリオキシエチレンオレイルエーテルなどの非イオン性界面活性剤、ラウリルジメチルアミノ酢酸ベタインなどの両性界面活性剤、塩化アルキルトリメチルアンモニウムなどのカチオン性界面活性剤などを用いる。   Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

高分子化合物としては、メチルセルロース，ゼラチン，デンプン，カゼイン，ヒドロキシエチルセルロース，キサンタンガム，カルボキシビニルポリマーなどを用いる。   As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

各用途に応じた有効成分としては、サリチル酸メチル，インドメタシンなどの消炎鎮痛剤、安息香酸ナトリウム，クレゾールなどの除菌剤、ヒレスロイド，ジエチルトルアミドなどの害虫忌避剤、酸化亜鉛などの制汗剤、カンフル，メントールなどの清涼剤、エフェドリン，アドレナリンなどの抗喘息薬、スクラロース，アスパルテームなどの甘味料、エポキシ樹脂，ウレタンなどの接着剤や塗料、パラフェニレンジアミン，アミノフェノールなどの染料，リン酸二水素アンモニウム，炭酸水素ナトリウム・カリウムなどの消火剤などを用いる。   Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Softeners such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

さらに、上記内容物以外の、懸濁剤，紫外線吸収剤，乳化剤，保湿剤，酸化防止剤、金属イオン封鎖剤なども用いることができる。   Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

１：容器本体
１ａ：開口首部
２：ハウジング
２ａ：環鍔状部
２ｂ：孔部
２ｃ：小径筒状部
２ｄ：環テーパ状の吸込弁座
２ｅ：環凹状部 1: Container body 1a: Opening neck portion 2: Housing 2a: Ring-shaped portion 2b: Hole portion 2c: Small-diameter cylindrical portion 2d: Ring tapered suction valve seat 2e: Ring-concave portion

３：ネジキャップ
３ａ：下側筒状部
３ｂ：環凸状部
３ｃ：上外側筒状部
３ｄ：上内側筒状部
３ｅ：環状上逆段部
３ｆ：環状下逆段部
４：吸込弁体
４ａ：半球状の弁体作用部
４ｂ：螺旋形状弾性部
４ｃ：環状固定部 3: Screw cap 3a: Lower cylindrical portion 3b: Ring convex portion 3c: Upper outer cylindrical portion 3d: Upper inner cylindrical portion 3e: Annular upper reverse step portion 3f: Annular lower reverse step portion 4: Suction valve body 4a: hemispherical valve body action part 4b: helical elastic part 4c: annular fixing part

５：ピストン
５ａ：ピストン上部
５ｂ：ピストン下部
５ｃ：環凸状部
５ｄ：環状垂下部
５ｅ：横孔部
５ｆ：環鍔状部
５ｇ：環凹状の吐出弁座
５ｈ：蓄圧ポンプ仕様の環壁状の吐出弁座（図１〜図３，図４(a)）
５ｊ：上下方向のリブ状部
５ｋ：直圧ポンプ仕様の環テーパ状部（図４(b)） 5: Piston 5a: Piston upper part 5b: Piston lower part 5c: Annular convex part 5d: Annular hanging part 5e: Horizontal hole part 5f: Annular ring-shaped part 5g: Annular discharge valve seat 5h: An annular wall shape of an accumulator pump specification Discharge valve seat (Figs. 1-3, 4 (a))
5j: Vertical rib portion 5k: Ring taper portion of direct pressure pump specification (FIG. 4 (b))

６：吐出弁体
６ａ：上外側逆スカート部
６ｂ：下外側スカート部
６ｃ：上内側逆スカート部
６ｄ：下内側逆スカート状の弁体作用部
７：スライドリング
７ａ：環状逆段部
７ｂ：環状段部
７ｃ：環テーパ状底面 6: Discharge valve body 6a: Upper outer reverse skirt portion 6b: Lower outer skirt portion 6c: Upper inner reverse skirt portion 6d: Lower inner reverse skirt-shaped valve element action portion 7: Slide ring 7a: Annular reverse step portion 7b: Annular Step 7c: Ring taper bottom

８：アウタースプリング
９：スパウト
９ａ：内容物通路部
９ｂ：放出口
９ｃ：ノズル
９ｄ：押下げ操作面
１０：環状パッキン
１１：吸上げパイプ
Ａ：ハウジング内部空間域 8: Outer spring 9: Spout 9a: Contents passage portion 9b: Discharge port 9c: Nozzle 9d: Push-down operation surface 10: Annular packing 11: Suction pipe A: Space inside the housing

Claims (4)

内容物放出操作に連動して静止モード位置のピストンが弾性力に抗しながらハウジングの内部を第一方向に移動するときの、吸込弁と吐出弁との間のハウジング内部空間域に収容された内容物の圧力増加により、前記吐出弁が閉状態の静止モードから開状態の作動モードへと移行するポンプ機構において、
前記吐出弁の構成要素であって、前記ピストンの一部からなる吐出弁座と、
前記吐出弁の構成要素であって、前記内容物の圧力増加にともない前記弾性力に抗しながら前記吐出弁座から離れる第二方向に全体が移動する吐出弁体と、
前記ピストンの外回り部分に配設されて、前記第一方向への移動が前記ハウジングとの当接作用により制限され、かつ、前記内容物放出操作の初期段階のとき、前記圧力増加に基づいて前記吐出弁体との一体化状態により前記第二方向へ連動し、前記作動モードでは前記吐出弁体から離間する環状のスライド部材と、
前記ピストンと前記スライド部材との間に配設されて前記弾性力を付与する弾性部材と、を備え、
前記ピストンは、
前記作動モードのとき、前記吐出弁体と当接して、前記吐出弁の開状態を設定保持するとともに、前記第一方向への移動が制限された前記スライド部材を前記吐出弁体から離間させる吐出弁体当接部を有し、
前記スライド部材および前記弾性部材は、
前記ピストンの外周面および前記ハウジングの内周面それぞれと、前記吐出弁体との内容物シール作用部分のシール外側空間域に、前記内容物からの隔離状態で設けられている、
ことを特徴とするポンプ機構。 When the piston in the stationary mode position moves in the first direction while resisting the elastic force in conjunction with the content release operation, it is accommodated in the housing internal space between the suction valve and the discharge valve. the pressure increase of the content, the pumping mechanism wherein the discharge valve transitions from the quiescent mode of the closed state to the operating mode of the open state,
A component of the discharge valve, a discharge valve seat comprising a part of the piston;
A discharge valve body that is a component of the discharge valve and moves in the second direction away from the discharge valve seat while resisting the elastic force as the pressure of the content increases,
Disposed in the outer periphery of the piston , the movement in the first direction is limited by the abutting action with the housing, and at the initial stage of the content discharge operation, based on the pressure increase, An annular slide member that is linked to the second direction by the integrated state with the discharge valve body, and is separated from the discharge valve body in the operation mode ;
An elastic member disposed between the piston and the slide member to apply the elastic force;
The piston is
In the operation mode, a discharge that contacts the discharge valve body to set and hold the open state of the discharge valve, and separates the slide member restricted in the first direction from the discharge valve body Having a valve body contact part,
The slide member and the elastic member are
The outer peripheral surface of the piston and the inner peripheral surface of the housing, and the seal outer space region of the content sealing action portion with the discharge valve body are provided in a state of being isolated from the content,
A pump mechanism characterized by that. 前記ピストンは、
前記弾性部材の一方部分に対する周方向の外周面受け部が形成された筒状部であり、
前記スライド部材は、
前記弾性部材の他方部分に対する内周面受け部が形成されたリング状部である、
ことを特徴とする請求項１記載のポンプ機構。 The piston is
A cylindrical portion in which an outer circumferential surface receiving portion in the circumferential direction with respect to one portion of the elastic member is formed,
The slide member is
It is a ring-shaped part in which an inner peripheral surface receiving part for the other part of the elastic member is formed.
The pump mechanism according to claim 1 . 前記吐出弁座は、
前記吐出弁体が静止モード位置から前記第二方向に移動する際、その所定長の初期移動後にはじめて当該吐出弁体と離間する態様の、形状を有している、
ことを特徴とする請求項１または２記載のポンプ機構。 The discharge valve seat is
When the discharge valve body moves in the second direction from the stationary mode position, the discharge valve body has a shape that is separated from the discharge valve body for the first time after the predetermined length of initial movement,
The pump mechanism according to claim 1 or 2, wherein 容器本体に放出対象内容物を収容し、
請求項１乃至３のいずれかに記載のポンプ機構が取り付けられている、
ことを特徴とするポンプ式製品。 Contains the contents to be released in the container body,
The pump mechanism according to any one of claims 1 to 3 is attached.
This is a pump-type product.
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