JP2004255326A

JP2004255326A - Inside dish elevation type liquid discharge container

Info

Publication number: JP2004255326A
Application number: JP2003050543A
Authority: JP
Inventors: Kazuhito Kuwabara; 和仁桑原; Takao Kishi; 岸　　隆生
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2003-02-27
Filing date: 2003-02-27
Publication date: 2004-09-16
Anticipated expiration: 2023-02-27
Also published as: JP4222473B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inside dish elevation type liquid discharge container in which defective that air in a head space is sucked together with a liquid in the container into a pump and discharged when the inside disk elevates to reach the almost upper limit. <P>SOLUTION: A seal plug 21 in which an outward flange 23 and a seal projected line 24 are mounted respectively in the lower end of an engaging cylinder 22 and the inside surface of the engaging cylinder 22. The engaging cylinder 22 of the seal plug 21 is fitted to the inside surface of a container body mouth-neck part 4 of the container, the lower part of a pump cylinder 13 mounted on the container body is inserted into the seal projected line 24 and the outer peripheral part of the outward flange 23 is engaged with the inside wall surface of a container drum part liquid-tightly. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は中皿上昇式の液体吐出容器に関する。
【０００２】
【従来の技術】
例えば特許文献１が示すように容器体内底部に上昇式中皿を嵌合させておき容器上部へ装着させた縦形ポンプのシリンダを容器体内へ垂下させ、該シリンダ内から上方付勢されて起立する作動部材の上下動で容器体内液体をシリンダ内へ吸上げ、かつ該シリンダ内液体を作動部材上端のノズルから吐出するよう設けた形式の中皿上昇式の液体吐出容器が多数知られている。
【０００３】
【特許文献１】
特開２００２−２２４５９８号公報
【０００４】
【発明が解決しようとする課題】
上記容器の中皿は、収納液体のほぼ全体を吐出させるために、中央部を上面開口の凹部に形成し、収納液体減少で中皿が上限まで上昇したとき、上記シリンダ下部が中皿の凹部内へ入るよう設けているから、収納液体が高粘度の場合は、容器体内液体減少により中皿が上昇して該中皿凹部の上部がシリンダ下端の吸込み口よりも上方へ位置したとき、シリンダ外面に沿う等してシリンダ下端の吸込み口から容器体上端部内のヘッドスペースへ連通する吸気孔が発生し、そのため収納液体と共にヘッドスペース内空気がポンプ内へ吸込みされ、かつ吐出される。このように収納液体と共にポンプ内へ吸込みされた空気は加圧され、吐出と同時に加圧状態が解消するため急激に膨張することで破裂し共に吐出された液体を飛散させることがあった。
【０００５】
本発明は従来のこのような欠点を、ヘッドスペース内液体吸入を防止させることで除去するものである。
【０００６】
【課題を解決するための手段】
第１の手段として容器体底部内に上昇式中皿を有し、かつ容器体上部内へ垂下するシリンダ内から上方付勢されて起立する作動部材の上下動で、吸上げた液体を作動部材上端のノズルから吐出可能に形成した中皿上昇式液体注出容器において、
嵌合筒２２下端へ第１外向きフランジ２３を、かつ嵌合筒内面へシール突条２４を、それぞれ付設したシール栓２１を設けて、シール突条２４内へ上記シリンダ１３下部を水密に嵌合させると共に、第１外向きフランジ２３外周部を容器体胴部の内面へ当接させ、又嵌合筒２２を容器体口頸部４の内面へ水密に嵌合させた。
【０００７】
第２の手段として、上記第１の手段を有すると共に上記シール栓２１の第１外向きフランジ２３外周部を、下外方へ垂下する第１補強筒２５と、該補強筒下端から上外方へ起立する、容器体胴部内壁面への圧接筒２６とで、形成した上面開口の溝状部２８に形成した。
【０００８】
第３の手段として、上記第１又は第２の手段を有すると共に上記中皿３１の中央部を、上記シリンダ１３下方が挿入可能な、上面開口の凹部３２に形成すると共に、該凹部上端よりも外方の中皿部分の上面形状を、上記シール栓の嵌合筒２２下端よりも外方シール栓部分の下面形状に対応させた形状として、中皿３１が上限まで上昇したとき、凹部３２内面と該凹部内へ挿入されたシリンダ部分外面とが、又上記シール栓外方部分の下外面と凹部上端よりも外方の中皿部分上面とが、当接ないし近接可能に形成した。
【０００９】
第４の手段として、上記第１、第２、又は第３の手段を有すると共に上記シリンダの下部を、下向き段部１３ａを介して小外径部１３ｂに形成しておき、上記シール栓２１のシール突条２４内周面を、上記下向き段部１３ａよりも上方の大外径部１３ｃ外面へ水密に圧接させた。
【００１０】
第５の手段として、上記第１、第２、第３又は第４の手段を有すると共に上記シール栓嵌合筒２２の外面へ下向き段部２９を形成し、又容器体口頸部４の内面へ上向き段部４ａを形成して、それ等両段部の係合によりシール栓２１が抜落ち不能に形成した。
【００１１】
【発明の実施の形態】
以下図面について説明する。まず従来公知の部分について簡単に説明すると、１は胴部２下端面を開口する容器体で、胴部上端から肩部３を介して口頸部４を起立する。その胴部２下端には別に設けた底筒５が嵌合させてあり、かつ胴部の下部内へは上昇式の中皿３１が嵌合させてある。
【００１２】
１１は上記容器体へ装着させた縦形ポンプで、該ポンプは、容器体口頸部４外面へ装着筒１２を螺合させ、かつ該装着筒から容器体上部内へシリンダ１３を垂下し、該シリンダ内から上方付勢させて作動部材１４を起立し、該作動部材の上下動により容器体１内液体をシリンダ内へ吸上げ、かつ該シリンダ内液体を作動部材上端へ嵌合させた押下げヘッド１５のノズル１６から吐出可能に形成している。尚１７はポンプの圧縮比を高めるためにシリンダ内へ装着させたポペット状の吸込み弁体、１８はキャップである。
【００１３】
本発明においては、図２が示すように嵌合筒２２下端へ第１外向きフランジ２３を、かつ嵌合筒内面へシール突条２４を、それぞれ付設したシール栓２１を設けて、図３が示すように第１外向きフランジ２３外周部を容器体胴部の内面へ水密に嵌合させて嵌合筒２２を口頸部４の下部内面へ緊密に嵌合できるよう設けた。該シール栓２１は図示のように第１外向きフランジ外周部を、下方へ垂下する第１補強筒２５と該第１補強筒下端から上外方起立する圧接筒２６とで上面開口の溝状部２８に形成するとよく、又嵌合筒２２は上部外面を上部小径のテーパ状として、該テーパ部下端を下向き段部２９とし、該下向き段部を口頸部内面へ形成させた上向き段部４ａへ係合させている。
【００１４】
上記シール栓２１の下面形状に対応させた中皿３１は次のように形成させるとよい。
【００１５】
中皿３１は中央部を、シリンダ１３の下方が挿入可能な上面開口の凹部３２に形成し、該凹部上端から第２外向きフランジ３３を介して第２補強筒３４を垂下し、該大２補強筒下端から突出させた外方張出し壁部３５先端へ、容器体胴部の内壁面へ水密に接して上昇させる摺動筒３６を付設した。これ等は既述シール栓２１の嵌合筒下端外方のシール栓部分下面の形状に対応させて形成し、図４が示すように中皿３１が上限まで上昇したとき、凹部３２内面と、該凹部内へ挿入されたシリンダ部分外面とが、又上記シール栓外方部分の下外面と凹部３２上端よりも外方の中皿部分上面とが、当接ないし近接して、それ等の間に残っていた収納液体をポンプ操作により吸上げ、かつ吐出できるよう設ける。
【００１６】
シリンダ１３は、シリンダ下部を、下向き段部１３ａを介して小外径部１３ｂとし、下向き段部１３ａよりも上方部分を大外径部１３ｃに形成するとよく、ポンプ装着状態において、シール栓２１のシール突条２４内周面はシリンダ大外径部１３ｃの下部外周面へ圧接するよう設けている。
【００１７】
容器体内への液体充填は、図３が示すように容器体１内へシール栓２１、底筒５、中皿３１を嵌合させた状態で行うことが出来る。該充填の際、液面がシール突条２４近辺に位置するよう設けておき、該状態からシリンダ下部をシール突条２４内へ挿通させてポンプを容器体口頸部へ装着させる。容器体内液体はシール突条２４下方へ押込みされるシリンダ部分の体積に応じて溢水することとなり、溢れた液体はシリンダ下部の小外径部１３ｂ外面と、シール突条２４内周面との間に形成される隙間を通ってシリンダ外面と容器体口頸部４との間へ入り、又一部の溢水液体は下端開口を通ってシリンダ内へ入る。上記シール突条２４内周面がシリンダ大外径部１３ｃ部分外面へ接して上記隙間が閉塞されると同時にシリンダ１３ａの下降も停止する。従って収納液体の液面をシール突条２４よりも上方へ位置させることが出来る。
【００１８】
上記構成において、作動部材１４を上下動させると、容器体内液体３１はシリンダ１３下端からシリンダ内へ吸込みされてノズル１６から吐出され、該吐出による容器体内液体減少と共に中皿３１は上昇し、図４が示すように中皿３１の外周部上面がシール栓２１の下面へ接するまで上昇するが、シール栓２１のシール突条２４がシリンダ大外径部１３ｃ外面へ水密に接しているため、シール突条２４上方に位置するヘッドスペース内空気がシリンダ１３内へ吸込みされることはない。
【００１９】
【発明の効果】
本発明は既述構成とするもので、請求項１記載の構成とすることで、シール栓２１の第１外向きフランジ２３が容器体肩部３の下面へ接する位置で停止し、かつ該シール栓のシール突条２４がシール栓下方の液体収納部分内とシール突条上方に形成されるヘッドスペース部分内とを水密に区分することとなり、よって収納液体が少なくなった後も収納液体と共にヘッドスペース内空気をポンプ内へ吸込みかつ収納液体と共に吐出することを防止できる。
【００２０】
請求項２のようにすることで、シール栓２１の圧接筒２７を容器体胴部２の上端部内壁面へ水密に圧接させることが出来、よって容器体内への液体充填時に容器体とシール栓との間を通って容器体内液体が洩れたり、又容器体内液体吐出時にヘッドスペース内空気が容器体とシール栓との間を通って容器体胴部内へ入ることがない。
【００２１】
請求項３のように形成することで、容器体内収納液体をほとんど残さず吐出させることが出来る。
【００２２】
請求項４のようにすることで、既述のように容器体内液体充填状態からポンプを装着させるに際し、容器体内の溢水をシール突条２４とシリンダの小外径部１３ｂとの間を通って容器体口頸部の上部内へ移動させることが出来、シール栓２１よりも下方にヘッドスペース下面が形成されることを防止することが容易である。
【００２３】
請求項５のように形成することで、容器体口頸部内へ嵌合されたシール栓の嵌合筒２２内へシリンダ下部を挿入させる際、シリンダとの摩擦抵抗により嵌合筒２２が所定位置よりも下方へ押下げられたり、又下方へ脱落したりすることを防止できる。
【図面の簡単な説明】
【図１】本発明容器の半断面図である。
【図２】ポンプ部分を除く容器部分の分解断面図である。
【図３】容器体内へ液体充填した状態で示す、容器の分解半断面図である。
【図４】容器体内液体がほぼ吐出された状態で示す半断面図である。
【符号の説明】
１…容器体５…底筒
１１…縦形ポンプ１２…装着筒
１３…シリンダ１３ａ…下向き段部
１３ｂ…小外径部１３ｃ…大外径部
１４…作動部材２１…シール栓
２２…嵌合筒２３…第１外向きフランジ
２４…シール突条２５…第１補強筒
２６…圧接筒２９…下向き段部
３１…中皿３２…凹部
３３…第２外向きフランジ３４…第２補強筒
３５…外方張出し壁部３６…摺動筒
４１…収納液体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a middle dish raising type liquid discharge container.
[0002]
[Prior art]
For example, as shown in Patent Document 1, a cylinder of a vertical pump fitted with a rising-type intermediate tray at the bottom of a container and attached to the upper part of the container is suspended into the container, and is urged upward from the cylinder to stand up. Numerous types of liquid raising containers of the middle pan type are known in which the liquid in the container is sucked into the cylinder by the vertical movement of the operating member and the liquid in the cylinder is discharged from the nozzle at the upper end of the operating member.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-224598
[Problems to be solved by the invention]
The middle dish of the container has a central portion formed in a recess in the upper surface opening so that almost all of the stored liquid is discharged. When the stored liquid is highly viscous, when the liquid in the container is reduced, the middle dish rises and the upper part of the middle dish recess is positioned above the suction port at the lower end of the cylinder. An air intake hole communicating with the head space in the upper end portion of the container body from the suction port at the lower end of the cylinder is formed along the outer surface, so that the air in the head space is sucked into the pump and discharged together with the stored liquid. In this way, the air sucked into the pump together with the stored liquid is pressurized, and since the pressurized state is canceled at the same time as the discharge, the air suddenly expands and ruptures, and the discharged liquid may be scattered.
[0005]
The present invention eliminates such conventional drawbacks by preventing inhalation of liquid in the head space.
[0006]
[Means for Solving the Problems]
As a first means, there is an ascending-type intermediate tray in the bottom of the container body, and the actuating member sucks up the liquid sucked up and down by an upward movement of the actuating member that is urged upward from the cylinder hanging down into the upper part of the container body. In the middle dish rising type liquid dispensing container formed so that it can be discharged from the nozzle at the upper end,
A seal plug 21 provided with a first outward flange 23 at the lower end of the fitting tube 22 and a seal protrusion 24 on the inner surface of the fitting tube is provided, and the lower portion of the cylinder 13 is fitted into the seal protrusion 24 in a watertight manner. In addition, the outer peripheral portion of the first outward flange 23 was brought into contact with the inner surface of the container body, and the fitting tube 22 was fitted into the inner surface of the container body neck portion 4 in a watertight manner.
[0007]
As a second means, the first reinforcing cylinder 25 having the first means and the outer periphery of the first outward flange 23 of the sealing plug 21 hanging downward and outward, and the upper and outer sides from the lower end of the reinforcing cylinder. It was formed in the groove-shaped part 28 of the upper surface opening formed by the pressure contact cylinder 26 to the inner wall surface of the container body part.
[0008]
As a third means, the center part of the inner tray 31 having the first or second means is formed in a recessed part 32 of an upper surface opening into which the lower part of the cylinder 13 can be inserted, and more than the upper end of the recessed part. When the upper tray 31 is raised to the upper limit, the upper surface shape of the outer middle dish portion is made to correspond to the lower surface shape of the outer seal stopper portion rather than the lower end of the fitting tube 22 of the seal plug, the inner surface of the recess 32 And the outer surface of the cylinder portion inserted into the recess, and the lower outer surface of the outer portion of the seal plug and the upper surface of the outer pan portion more than the upper end of the recess are formed so as to be in contact with or close to each other.
[0009]
As a fourth means, the first, second, or third means is provided, and the lower portion of the cylinder is formed in the small outer diameter portion 13b through the downward stepped portion 13a, and the seal plug 21 The inner peripheral surface of the seal protrusion 24 was brought into pressure-tight contact with the outer surface of the large outer diameter portion 13c above the downward stepped portion 13a.
[0010]
As a fifth means, the first, second, third or fourth means is provided, a downward stepped portion 29 is formed on the outer surface of the seal plug fitting tube 22, and the inner surface of the container body neck portion 4 is formed. An upward stepped portion 4a was formed, and the seal plug 21 was formed so that it could not be pulled out by the engagement of the two stepped portions.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The drawings will be described below. First, a conventionally known portion will be briefly described. Reference numeral 1 denotes a container body that opens the lower end surface of the trunk portion 2, and the mouth and neck portion 4 is erected from the upper end of the trunk portion via the shoulder portion 3. A bottom cylinder 5 provided separately is fitted to the lower end of the barrel portion 2 and a rising-type inner tray 31 is fitted into the lower portion of the barrel portion.
[0012]
11 is a vertical pump mounted on the container body. The pump is configured to screw the mounting cylinder 12 into the outer surface of the container body neck 4 and to hang the cylinder 13 from the mounting cylinder into the upper part of the container body. The actuating member 14 is erected upwardly from within the cylinder, the liquid in the container body 1 is sucked into the cylinder by the vertical movement of the actuating member, and the liquid in the cylinder is fitted to the upper end of the actuating member. The nozzles 16 of the head 15 are formed so that they can be discharged. Reference numeral 17 denotes a poppet-like suction valve body mounted in the cylinder to increase the compression ratio of the pump, and 18 denotes a cap.
[0013]
In the present invention, as shown in FIG. 2, a seal plug 21 having a first outward flange 23 at the lower end of the fitting tube 22 and a seal protrusion 24 on the inner surface of the fitting tube is provided. As shown, the outer peripheral portion of the first outward flange 23 is fitted in a watertight manner to the inner surface of the container body so that the fitting tube 22 can be tightly fitted to the lower inner surface of the mouth and neck portion 4. As shown in the figure, the seal plug 21 has a groove shape with an upper surface opening formed by a first reinforcing cylinder 25 that hangs downward on the outer periphery of the first outward flange and a press-contact cylinder 26 that rises upward and outward from the lower end of the first reinforcing cylinder. The fitting tube 22 may be formed in the upper portion 28. The upper portion of the fitting tube 22 has a tapered shape with an upper small diameter, the lower end of the tapered portion is a downward stepped portion 29, and the downward stepped portion is formed on the inner surface of the mouth and neck portion. 4a is engaged.
[0014]
The inner tray 31 corresponding to the shape of the lower surface of the seal plug 21 may be formed as follows.
[0015]
The middle plate 31 is formed with a central portion formed in a concave portion 32 having an upper surface opening into which the lower portion of the cylinder 13 can be inserted, and a second reinforcing cylinder 34 is suspended from the upper end of the concave portion via a second outward flange 33, A sliding cylinder 36 is attached to the tip of the outwardly projecting wall portion 35 that protrudes from the lower end of the reinforcing cylinder, and is raised in contact with the inner wall surface of the container body in a watertight manner. These are formed corresponding to the shape of the lower surface of the sealing plug portion outside the lower end of the fitting tube of the sealing plug 21 described above, and when the inner plate 31 is raised to the upper limit as shown in FIG. The outer surface of the cylinder portion inserted into the recess, the lower outer surface of the outer portion of the seal plug, and the upper surface of the outer pan portion more than the upper end of the recess 32 are in contact with or close to each other. The storage liquid remaining in the container is provided so as to be sucked up and discharged by a pump operation.
[0016]
The cylinder 13 may be formed such that the lower portion of the cylinder has a small outer diameter portion 13b via a downward stepped portion 13a and an upper portion of the lower stepped portion 13a is formed as a large outer diameter portion 13c. The inner peripheral surface of the seal protrusion 24 is provided so as to be in pressure contact with the lower outer peripheral surface of the large cylinder outer diameter portion 13c.
[0017]
As shown in FIG. 3, the liquid filling into the container body can be performed in a state where the seal plug 21, the bottom cylinder 5, and the inner dish 31 are fitted into the container body 1. At the time of filling, the liquid level is provided in the vicinity of the seal ridge 24, and from this state, the lower part of the cylinder is inserted into the seal ridge 24, and the pump is attached to the container body neck. The liquid in the container overflows in accordance with the volume of the cylinder portion pushed downward of the seal protrusion 24, and the overflowed liquid is between the outer surface of the small outer diameter portion 13 b below the cylinder and the inner peripheral surface of the seal protrusion 24. Through the gap formed between the cylinder outer surface and the container neck 4 of the container body, and part of the overflow liquid enters the cylinder through the lower end opening. The inner circumferential surface of the seal protrusion 24 contacts the outer surface of the cylinder large outer diameter portion 13c and the gap is closed, and at the same time, the lowering of the cylinder 13a is stopped. Therefore, the liquid level of the stored liquid can be positioned above the seal protrusion 24.
[0018]
In the above configuration, when the actuating member 14 is moved up and down, the liquid 31 in the container is sucked into the cylinder from the lower end of the cylinder 13 and discharged from the nozzle 16, and the inner plate 31 rises as the liquid in the container decreases due to the discharge. As shown in FIG. 4, the upper surface of the outer periphery of the inner tray 31 rises until it contacts the lower surface of the seal plug 21, but the seal protrusion 24 of the seal plug 21 is in watertight contact with the outer surface of the large cylinder outer diameter portion 13c. Air in the head space located above the ridge 24 is not sucked into the cylinder 13.
[0019]
【The invention's effect】
The present invention is configured as described above. With the configuration described in claim 1, the first outward flange 23 of the seal stopper 21 stops at a position where it contacts the lower surface of the container body shoulder 3, and the seal The plug seal protrusion 24 separates the liquid storage part below the seal plug and the head space part formed above the seal protrusion in a watertight manner, and thus the head together with the storage liquid even after the storage liquid is reduced. It is possible to prevent the air in the space from being sucked into the pump and discharged together with the stored liquid.
[0020]
According to the second aspect, the press-contact cylinder 27 of the seal plug 21 can be pressure-contacted with the inner wall surface of the upper end of the container body 2 in a water-tight manner. The liquid in the container does not leak through the gap, and the air in the head space does not enter the container body through the gap between the container body and the seal plug when the liquid in the container is discharged.
[0021]
By forming as in claim 3, it is possible to discharge almost no liquid in the container.
[0022]
According to the fourth aspect, when the pump is mounted from the liquid state in the container as described above, the overflow in the container passes between the seal protrusion 24 and the small outer diameter portion 13b of the cylinder. It can be moved into the upper part of the container neck, and it is easy to prevent the lower surface of the head space from being formed below the seal plug 21.
[0023]
By forming as in claim 5, when the lower part of the cylinder is inserted into the fitting tube 22 of the sealing plug fitted into the container body neck, the fitting tube 22 is predetermined by the frictional resistance with the cylinder. It can be prevented from being pushed down from the position or falling down.
[Brief description of the drawings]
FIG. 1 is a half sectional view of a container of the present invention.
FIG. 2 is an exploded cross-sectional view of a container portion excluding a pump portion.
FIG. 3 is an exploded half sectional view of the container, showing a state in which the container is filled with liquid.
FIG. 4 is a half sectional view showing a state in which the liquid in the container is almost discharged.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Container body 5 ... Bottom cylinder 11 ... Vertical pump 12 ... Mounting cylinder 13 ... Cylinder 13a ... Downward step part 13b ... Small outer diameter part 13c ... Large outer diameter part 14 ... Actuating member 21 ... Seal plug 22 ... Fitting cylinder 23 ... 1st outward flange 24 ... Sealing ridge 25 ... 1st reinforcement cylinder 26 ... Pressure welding cylinder 29 ... Downward stepped part 31 ... Middle dish 32 ... Concave 33 ... 2nd outward flange 34 ... 2nd reinforcement cylinder 35 ... Outward Overhanging wall 36 ... Sliding cylinder 41 ... Storage liquid

Claims

The lifting member moves up and down from the cylinder that is lifted upward from the cylinder that hangs down into the upper part of the container body, and the sucked-up liquid is discharged from the nozzle at the upper end of the working member. In the middle dish rising type liquid dispensing container formed as possible,
A seal plug 21 provided with a first outward flange 23 at the lower end of the fitting tube 22 and a seal protrusion 24 on the inner surface of the fitting tube is provided, and the lower portion of the cylinder 13 is fitted into the seal protrusion 24 in a watertight manner. In addition, the outer peripheral portion of the first outward flange 23 is brought into contact with the inner surface of the container body, and the fitting tube 22 is fitted into the inner surface of the container body neck portion 4 in a watertight manner. Middle dish rising type liquid discharge container.

The outer periphery of the first outward flange 23 of the sealing plug 21 is a first reinforcing cylinder 25 that hangs downward and outward, and a pressure-contacting cylinder 26 that rises upward and outward from the lower end of the reinforcing cylinder to the inner wall surface of the container body. The middle dish rising type liquid discharge container according to claim 1, characterized in that it is formed in the groove-like portion 28 of the upper surface opening formed.

The central portion of the inner tray 31 is formed in a concave portion 32 having an opening on the upper surface through which the lower side of the cylinder 13 can be inserted. As the shape corresponding to the lower surface shape of the outer seal plug portion rather than the lower end of the cylinder 22, when the inner tray 31 is raised to the upper limit, the inner surface of the recess 32 and the outer surface of the cylinder portion inserted into the recess are also sealed. 3. The middle dish rising type liquid discharge container according to claim 1 or 2, wherein the lower outer surface of the stopper outer part and the upper surface of the outer middle dish part than the upper end of the recess are formed so as to contact or be close to each other. .

A lower portion of the cylinder is formed in a small outer diameter portion 13b via a downward stepped portion 13a, and an inner peripheral surface of the seal protrusion 24 of the seal plug 21 is a large outer diameter above the downward stepped portion 13a. The middle dish rising type liquid discharge container according to claim 1, 2 or 3, wherein the outer surface of the part 13c is pressed in a watertight manner.

A downward stepped portion 29 is formed on the outer surface of the seal plug fitting tube 22 and an upward stepped portion 4a is formed on the inner surface of the container body neck portion 4 so that the seal plug 21 is engaged by the engagement of the two stepped portions. 5. The middle dish rising type liquid discharge container according to claim 1, wherein the container is formed so that it cannot be pulled out.