JP4043682B2

JP4043682B2 - Tube container

Info

Publication number: JP4043682B2
Application number: JP2000054171A
Authority: JP
Inventors: 弘幸中村; 治夫土田
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2000-02-29
Filing date: 2000-02-29
Publication date: 2008-02-06
Anticipated expiration: 2020-02-29
Also published as: JP2001240089A

Description

【０００１】
【発明の属する技術分野】
本発明はチューブ容器に関する。
【０００２】
【従来の技術】
チューブ容器として、圧搾可能で、下端を扁平に閉塞した胴部から口頚部を起立した容器体と、該容器体の口頚部外周に嵌合させた周壁上端縁より頂壁を延設してなるキャップとからなるものが一般に知られている。これらはキャップを外し、胴部を圧搾することにより収納液を口頚部から押し出し使用する。
【０００３】
チューブ容器は元来、空気との接触を嫌う性質のあるものを収納することを主目的としており、そのため胴部を弾力性に乏しく且つ可撓性の有る材質で形成し、収納液が減少するにつれて胴部が凹んだ状態で維持される如く構成している。
【０００４】
【発明が解決しようとする課題】
しかしながら、最近では合成樹脂製の容器本体が主流を占め、収納液も必ずしも嫌気性のものとは限らなくなっているが、当然空気との接触を避ける液を収納することもいまだ多い。この様な場合、合成樹脂材で形成されたチューブ容器は一般に弾力性があるため、収納液を押し出した後胴部の圧搾を解除すると胴部が弾性復元して負圧化した胴部内に空気を吸い込んでしまうという不都合がある。本発明は上記した点に鑑みなされたもので、容器本体を弾力性に富む合成樹脂材で形成した場合でも、液を押し出した後に容器体内へ空気が入るのを極力防止でき、また、構造が簡単で安価に製造できる優れたチューブ容器を提案するものである。
【０００５】
【課題を解決するための手段】
第１の手段として、以下の通り構成した。即ち、圧搾可能な胴部４より口頚部６を起立させるとともに、口頚部６の開口部分に掛け渡した頂板８に注出口９を穿設してなる合成樹脂製の容器本体２と、口頚部６外周に嵌合させた周壁13上端縁より頂壁14を延設するとともに、頂壁14に基端を開口した注出用のノズル15を立設し、且つ、注出口９とノズル15とを液密に連通させた合成樹脂製の注出栓３とを備え、ノズル15内面より周方向間隔をあけて垂設した複数条の弾性板18を介して、注出口９周囲の頂板８上面に周縁部を圧接した弁板19を、一体に延設してなる。
【０００６】
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、上記頂板８の中央部を筒状に陥没した陥没部10を設けるとともに、陥没部10の底壁部10a に上記注出口９を穿設し、陥没部10の垂壁部10b 内面に周方向複数の案内リブ11を縦設してなる。
【０００７】
第３の手段として、以下の通り構成した。即ち、圧搾可能な胴部４より口頚部６を起立させるとともに、口頚部６の開口部分に頂板８を一体に掛け渡し、且つ、頂板８に基端を開口した注出筒26を立設してなる合成樹脂製の容器本体２と、口頚部６外周に嵌合させた周壁13上端縁より頂壁14を延設するとともに、頂壁14に基端を開口して立設した注出用のノズル15を注出筒26外周に液密に嵌合させてなる合成樹脂製の注出栓３とを備え、注出筒26の上端面に圧接してその開口を密閉する弁板29を、ノズル15内面との間に一体に掛け渡した周方向複数の弾性連結片30を介して支持してなる。
【０００８】
第４の手段として、以下の通り構成した。即ち、前記第３の手段に於いて、上記弾性連結片30が、ノズル15内面より中心に向かって延びた後ノズル15内周に沿って延びるとともに、再び中心に向かって延びる弾性連結片30である。
【０００９】
第５の手段として、以下の通り構成した。即ち、前記第３の手段に於いて、上記頂壁８の注出筒26周囲を環状に陥没させた凹部27を形成するとともに、該凹部の外側垂壁面に密嵌させ且つ頂壁14裏面より垂設したシール筒28を設け、上記注出筒26の上部を下から第１縮径部26a 及び第２縮径部26b に順次縮径し、第１縮径部26a 外周にノズル15内周面の上下方向中間部分を密嵌させ、該密嵌部分下方の注出筒26とノズル15との間に隙間ａを設けてなる。
【００１０】
【発明の実施の形態】
【００１１】
以下、本発明の実施例の形態を図面を参照して説明する。
【００１２】
本発明のチューブ容器１は、容器本体２と、注出栓３とを備えている。
【００１３】
図１〜図３は第１の手段の一実施例を示し、容器本体２は合成樹脂により形成したもので、圧搾可能な筒状胴部４より肩部５を介して口頚部６を起立して構成しており、口頚部６外周に注出栓３を係止するための図示例の如き係止突条７を周設したり、或いは螺条を周設したものが使用できる。また、口頚部６の開口部分に掛け渡した頂板８に注出口９を穿設している。頂板８の形態は口頚部６開口部分を掛け渡したものであれば良く、水平板状のものであっても良いが、図示例では、後述弁板の上下動を円滑に行う目的で、中央を筒状に陥没させた陥没部10を設け、陥没部10の底壁部10a に注出口９を穿設し、陥没部10の垂壁部10b 内面に周方向複数の案内リブ11を突設している。また、図示例では、外周下部に後述シール筒を挿入させるための環状凹部12を形成している。
【００１４】
上記の如き容器本体２は、例えば、射出成形等の形成方法で下端を開口した筒状の状態で胴部を形成し、液を充填後胴部４下端を扁平に閉塞する。
【００１５】
注出栓３も合成樹脂により形成され、口頚部６外周に周壁13を嵌合させて容器本体２に装着したもので、周壁13上端縁より頂壁14を延設し、頂壁14に基端を開口したノズル15を立設し、また、注出口９とノズル15とを液密に連通させた形態のものが採用される。周壁13の口頚部６外周への嵌合係止は、図示例の如く周壁13内周に突周設した係合突条16を上記係止突条７に乗り越え係合させる方法の外、螺合等種々の形態を採用できる。また、頂壁14裏面周縁部から垂設したシール筒17を口頚部６内周下端部に密嵌してこの部分からの液の漏出防止を図り、ひいては注出口９とノズル15とを液密に連通させている。尚、両者の液密な連通は、これに限られず、頂板８周縁部と頂壁14周縁部とを密接しても良く、パッキンを介在させても良い。
【００１６】
本発明の注出栓３は、ノズル15内面より周方向間隔をあけて垂設した複数条の弾性板18を介して注出口９周囲の頂板８上面に圧接する弁板19を一体に延設している。図示例に於いては三条の弾性板18を設けており、各弾性板18は螺旋状をなし、ノズル15の内周下部に周方向間隔をあけて上端を一体に連結するとともに、下端を円板状をなす弁板19外周縁部に周方向間隔をあけて一体に連結している。弁板19と各案内リブ11とは僅かなクリアランスをあけて構成し、液注出の際の円滑な上下動を行う如く構成している。
【００１７】
本発明に於いて、注出栓３に蓋体20を設けても良く、蓋体20としては、種々の形態を採用できる。例えば、図１に示す実施例では、注出栓の後部上端部に後部下端部を薄肉ヒンジ21を介して一体に連結した蓋体20設けている。この蓋体20は、注出栓頂壁14上面周縁部に凹設した上向き段部22に周壁23下端縁を嵌合させるととにも、周壁23上端縁より延設した頂壁24中央裏面より、ノズル15の内外に密嵌するシール筒25，25を垂設している。図４は蓋体20の別の形態で、注出栓周壁13外周に螺着させた周壁23上端縁より頂壁24を延設して構成している。
【００１８】
上記の如く構成したチューブ容器１を使用する場合に付いて説明すると、まず、蓋体20を開き、次いで胴部４を圧搾すると、加圧された胴部４内の液が弾性板18の弾発力に抗して弁板19を押し開き、ノズル15から注出される。胴部４の圧搾を解除すると、弁板19は直ちに閉じる。
【００１９】
図５及び図６は第３の手段の一実施例を示し、図１の実施例同様容器本体２は合成樹脂により形成したもので、圧搾可能な筒状胴部４より肩部５を介して口頚部６を起立して構成しており、口頚部６外周には注出栓３を係止するための係止突条を周設したり、或いは螺条を周設したものが使用できる。尚、図示例では係止突条７を突周設している。また、口頚部６の開口部分に掛け渡した頂板８に基端を開口して注出筒26を立設している。頂板８の形態は口頚部６開口部分を掛け渡したものであれば良く、水平板状のものであっても良いが、図示例では、後述シール筒を挿入可能とするために、注出筒周囲を環状に陥没させた凹部27を設けている。また、注出筒26の上部を、下からそれぞれ段部を介して、第１縮径部26a 及び第２縮径部26b に順次縮径して構成している。
【００２０】
上記の如き容器本体２は、図１の実施例と同様にその形成方法を種々採用できる。
【００２１】
本実施例に於ける注出栓３も合成樹脂により形成され、図１の実施例を同様口頚部６外周に周壁13を嵌合させて容器本体２に装着したもので、周壁13上端縁より頂壁14を延設するとともに、頂壁14に基端を開口して立設した注出用のノズル15を注出筒26外周に液密に嵌合させた形態のものが採用される。周壁13の口頚部６外周への嵌合係止は、図１の実施例と同様である。
【００２２】
図示例に於けるノズル15は、下部が末広がりの短円筒状をなし、上下方向中間部内面を第１縮径部26a 外周に密嵌させ、開密嵌部分下方の注出筒26のノズル15との間に隙間ａを設けるとともに、注出筒26先端面より上方へ先端部を突出している。この隙間ａを設けにことにより、容器本体２への注出栓３の組み付けを容易に行える如く構成している。また、頂壁14裏面中央部から垂設したシール筒28を凹部の外側垂壁面に密嵌して第１縮径部26a とノズル15との密嵌部分と併せて二重シールし、この部分からの液の漏出防止を図っている。
【００２３】
本発明容器に於ける注出栓３は、注出筒26の上端面に圧接してその開口を密閉する弁板29を、ノズル15内面との間に一体に掛け渡した周方向複数の弾性連結片30を介して支持している。図示例では、ノズル15内面より中心に向かって延びたのちノズル内周に沿って延びるとともに、再び中心に向かって延びる弾性連結片30を、ノズル15内面と、弁板29外周面との間に周方向等間隔に三本掛け渡している。
【００２４】
本発明に於いて、注出栓３に図１及び図４の実施例同様種々の形態の蓋体を設けても良い。蓋体に関して同符号を付して説明を省略する。
【００２５】
本実施例のチューブ容器１を使用する場合は、同様に蓋体20を開き、次いで胴部４を圧搾すると、加圧された胴部４内の液が弾性連結片の弾発力に抗して弁板29を押し開き、ノズル15から注出される。胴部４の圧搾を解除すると、弁板29は直ちに閉じる。
【００２６】
【発明の効果】
以上説明した如く本発明のチューブ容器は、既述構成としたことにより、弾力性の有る合成樹脂材を使用して形成したものであっても、使用中の液注出後に容器体胴部内へ空気が入るのを極力防止することができる。また、その構造は極めて簡単で、蓋体を設けた場合に合成樹脂により注出栓と一体に形成することもできる。
【００２７】
また、第２の手段のチューブ容器は、液注出の際の弁板19の上下動を円滑に行えて、弁板19が作動不良を引き起こす等の不都合を生じない。
【００２８】
また、第３の手段のチューブ容器は、上記第１の手段のチューブ容器と同様、弾力性の有る合成樹脂材を使用して形成したものであっても、使用中の液注出後に容器体胴部内へ空気が入るのを極力防止することができる。また、その構造は極めて簡単で、蓋体を設けた場合に合成樹脂により注出栓と一体に形成することもできる。
【００２９】
また、第４の手段のチューブ容器は、弾性連結片の変形幅を大きくとれるため弁板29の上下動にゆとりがあり、液の注出も円滑に行える利点を兼ね備える。
【００３０】
また、第５の手段のチューブ容器は、ノズル内周面の密嵌部分とシール筒28の密嵌部分とで二重シールするため、液漏れの虞がなく、しかも、隙間ａの存在で注出栓３を容器本体２に嵌着する際に容易に行える利点を兼ね備えている。
【図面の簡単な説明】
【図１】本発明の一実施例を示す縦断面図である。
【図２】同実施例の分解斜視図である。
【図３】同実施例の斜視図である。
【図４】本発明の他の実施例を示す縦断面図である。
【図５】本発明の更に他の実施例を示す縦断面図である。
【図６】同実施例の弁板部分の要部横断面図である。
【図７】本発明の更に他の実施例を示す縦断面図である。
【符号の説明】
２…容器本体，３…注出栓，４…胴部，６…口頚部，８…頂板，９…注出口，
10…陥没部，10a …底壁部，10b …垂壁部，11…案内リブ，13…周壁，
14…頂壁，15…ノズル， 18…弾性板，19…弁板，26…注出筒，
26a …第１縮径部，26b …第２縮径部，27…凹部，28…シール筒，29…弁板，
30…弾性連結片，ａ…隙間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tube container.
[0002]
[Prior art]
As a tube container, the top wall is extended from the container body that can be squeezed and has the mouth and neck raised from the trunk with the lower end closed flat, and the upper edge of the peripheral wall fitted to the mouth and neck of the container body. What consists of a cap is generally known. These remove the cap and squeeze the trunk to push out the stored liquid from the mouth and neck.
[0003]
The tube container is originally intended to store things that do not like contact with air. Therefore, the body is made of a material with poor elasticity and flexibility, and the storage liquid is reduced. Accordingly, the body portion is maintained in a recessed state.
[0004]
[Problems to be solved by the invention]
Recently, however, synthetic resin container bodies have become the mainstream, and the stored liquid is not necessarily anaerobic, but naturally there are still many cases where liquid that avoids contact with air is stored. In such a case, since the tube container formed of a synthetic resin material is generally elastic, when the squeezing of the body part is released after the stored liquid is pushed out, the body part is elastically restored, and the air is put into the body part that has become negative pressure. There is an inconvenience of inhaling. The present invention has been made in view of the above points, and even when the container body is formed of a synthetic resin material rich in elasticity, it is possible to prevent air from entering the container body after extruding the liquid as much as possible. The present invention proposes an excellent tube container that can be easily manufactured at low cost.
[0005]
[Means for Solving the Problems]
The first means is configured as follows. In other words, the mouth and neck portion 6 is raised from the squeezable body portion 4, and the synthetic resin container body 2 formed by drilling the spout 9 in the top plate 8 spanning the opening portion of the mouth and neck portion 6, and the mouth and neck portion 6 A top wall 14 is extended from the upper end edge of the peripheral wall 13 fitted to the outer periphery, and a pouring nozzle 15 having a base end opened on the top wall 14, and the spout 9 and the nozzle 15 The top surface of the top plate 8 around the spout 9 is provided with a plurality of elastic plates 18 that are vertically spaced from the inner surface of the nozzle 15 with a synthetic resin spout 3 that is fluid-tightly communicated with each other. the valve plate 19 is pressed against the peripheral portion, ing and integrally extended.
[0006]
The second means is configured as follows. That is, in the first means, a recessed portion 10 is provided in which the central portion of the top plate 8 is recessed in a cylindrical shape, and the spout 9 is formed in the bottom wall portion 10a of the recessed portion 10 so as to be recessed. ing to Tate設circumferential plurality of guide ribs 11 to 10 vertical wall portion 10b the inner surface of.
[0007]
The third means was configured as follows. That is, the neck 6 is erected from the squeezable body 4, the top plate 8 is integrally stretched over the opening of the mouth / neck 6, and the pouring cylinder 26 whose base end is opened is erected on the top plate 8. The top wall 14 is extended from the upper end edge of the peripheral wall 13 fitted to the outer periphery of the synthetic resin container body 2 and the mouth and neck portion 6, and the base wall is opened and the base end is opened for pouring. A valve plate 29 that is in pressure contact with the upper end surface of the pouring cylinder 26 and seals its opening. , ing and supported by a plurality of circumferential elastic connecting piece 30 passed over the integrally between the nozzle 15 inner surface.
[0008]
The fourth means is configured as follows. That is, in the third means, the elastic connecting piece 30 extends from the inner surface of the nozzle 15 toward the center, then extends along the inner periphery of the nozzle 15, and again extends toward the center. Oh Ru.
[0009]
The fifth means is configured as follows. That is, in the third means, a concave portion 27 is formed in which the periphery of the pouring cylinder 26 of the top wall 8 is annularly depressed, and the concave portion 27 is closely fitted to the outer vertical wall surface of the concave portion and from the back surface of the top wall 14. A vertically extending seal cylinder 28 is provided, and the upper part of the extraction cylinder 26 is sequentially reduced from the bottom to the first reduced diameter part 26a and the second reduced diameter part 26b, and the inner periphery of the nozzle 15 is provided on the outer periphery of the first reduced diameter part 26a. is closely fitted a vertically intermediate portion of the surface, ing provided a gap a between the portions below the pouring cylinder 26 and the nozzle 15 fit said seal.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
[0011]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
The tube container 1 of the present invention includes a container main body 2 and a spout 3.
[0013]
1 to 3 show an embodiment of the first means , wherein the container body 2 is formed of a synthetic resin, and the mouth and neck 6 is raised from the squeezable cylindrical body 4 via the shoulder 5. A locking protrusion 7 as shown in the figure for locking the pouring plug 3 around the mouth / neck portion 6 or a screw thread can be used. Further, a spout 9 is formed in the top plate 8 spanning the opening of the mouth / neck portion 6. The shape of the top plate 8 is not limited as long as it spans the opening of the mouth and neck portion 6 and may be a horizontal plate shape. However, in the illustrated example, for the purpose of smoothly moving the valve plate up and down, Is provided with a recessed portion 10 that is recessed in a cylindrical shape, a spout 9 is formed in the bottom wall portion 10a of the recessed portion 10, and a plurality of circumferential guide ribs 11 are provided on the inner surface of the vertical wall portion 10b of the recessed portion 10 is doing. In the illustrated example, an annular recess 12 for inserting a seal cylinder, which will be described later, is formed in the lower part of the outer periphery.
[0014]
The container body 2 as described above, for example, forms a body part in a cylindrical state with the lower end opened by a forming method such as injection molding, and closes the lower end of the body part 4 flatly after filling with liquid.
[0015]
The spout 3 is also made of synthetic resin, and is fitted to the container body 2 with a peripheral wall 13 fitted to the outer periphery of the neck 6. The top wall 14 extends from the upper edge of the peripheral wall 13, and is A nozzle 15 having an open end is provided, and the spout 9 and the nozzle 15 are in fluid-tight communication with each other. The engagement locking of the peripheral wall 13 to the outer periphery of the neck 6 of the neck is performed by screwing the engaging protrusion 16 provided on the inner periphery of the peripheral wall 13 over the engaging protrusion 7 as shown in FIG. Various forms can be employed. Further, a seal cylinder 17 suspended from the peripheral edge of the back surface of the top wall 14 is closely fitted to the lower end of the inner periphery of the mouth neck 6 to prevent leakage of liquid from this portion. As a result, the spout 9 and the nozzle 15 are liquid-tight. Communicating with The liquid-tight communication between them is not limited to this, and the peripheral edge of the top plate 8 and the peripheral edge of the top wall 14 may be in close contact with each other, and packing may be interposed.
[0016]
The spout 3 of the present invention integrally extends a valve plate 19 that presses against the top surface of the top plate 8 around the spout 9 via a plurality of elastic plates 18 that are suspended from the inner surface of the nozzle 15 at intervals in the circumferential direction. is doing. In the illustrated example, three elastic plates 18 are provided. Each elastic plate 18 has a spiral shape, and is connected to the lower inner periphery of the nozzle 15 with a circumferential interval, and the upper end is integrally connected, and the lower end is circular. A plate-like valve plate 19 is integrally connected to the outer peripheral edge of the valve plate 19 with a circumferential interval. The valve plate 19 and the respective guide ribs 11 are configured with a slight clearance so that the valve plate 19 and the guide ribs 11 can be smoothly moved up and down during liquid dispensing.
[0017]
In the present invention, the lid 20 may be provided on the spout 3 and various forms can be adopted as the lid 20. For example, in the embodiment shown in FIG. 1, a lid body 20 in which a rear lower end portion is integrally connected to a rear upper end portion of a spout stopper via a thin hinge 21 is provided. The lid body 20 has a lower end edge of the peripheral wall 23 fitted to the upward stepped portion 22 formed in the upper peripheral edge of the top surface of the spout stopper 14, and the central rear surface of the top wall 24 extended from the upper end edge of the peripheral wall 23. Accordingly, seal cylinders 25 and 25 are provided so as to fit closely inside and outside the nozzle 15. FIG. 4 shows another form of the lid 20, which is constructed by extending the top wall 24 from the upper end edge of the peripheral wall 23 screwed to the outer periphery of the spout peripheral wall 13.
[0018]
The case where the tube container 1 configured as described above is used will be described. First, when the lid body 20 is opened and then the barrel portion 4 is squeezed, the liquid in the pressurized barrel portion 4 is elasticized by the elastic plate 18. The valve plate 19 is pushed open against the force to be poured out from the nozzle 15. When the squeezing of the body 4 is released, the valve plate 19 is immediately closed.
[0019]
5 and 6 show an embodiment of the third means . Like the embodiment of FIG. 1, the container body 2 is made of a synthetic resin, and is squeezed from the cylindrical body 4 through the shoulder 5. The mouth and neck portion 6 is erected, and an outer periphery of the mouth and neck portion 6 can be provided with a locking protrusion for locking the pouring stopper 3 or a screw thread. In the illustrated example, the locking ridge 7 is provided in a protruding manner. Further, a pour tube 26 is erected by opening the base end of the top plate 8 spanning the opening portion of the mouth and neck portion 6. The form of the top plate 8 is not limited as long as it spans the opening of the mouth-neck portion 6 and may be a horizontal plate-like shape. A recess 27 is provided in which the periphery is depressed in an annular shape. In addition, the upper portion of the dispensing tube 26 is configured to be sequentially reduced in diameter from the bottom to the first reduced diameter portion 26a and the second reduced diameter portion 26b via the stepped portions.
[0020]
The container body 2 as described above can employ various formation methods as in the embodiment of FIG.
[0021]
The spout 3 in the present embodiment is also made of a synthetic resin, and in the same manner as the embodiment of FIG. 1, the peripheral wall 13 is fitted to the outer periphery of the neck 6 and attached to the container body 2. A configuration is adopted in which the top wall 14 is extended and a pouring nozzle 15 standing upright with the base wall open is fitted in a liquid-tight manner on the outer periphery of the pouring cylinder 26. The engagement locking of the peripheral wall 13 to the outer periphery of the neck 6 is the same as in the embodiment of FIG.
[0022]
The nozzle 15 in the illustrated example has a short cylindrical shape with a lower portion extending toward the bottom, and the inner surface of the intermediate portion in the vertical direction is closely fitted to the outer periphery of the first reduced diameter portion 26a. A gap a is provided between the tip and the tip of the dispensing tube 26 and the tip of the tip is projected upward. By providing this gap a, it is configured so that the pouring stopper 3 can be easily assembled to the container body 2. Further, a seal cylinder 28 suspended from the center of the back surface of the top wall 14 is tightly fitted to the outer perpendicular wall surface of the recess to double seal together with the tightly fitting portion of the first reduced diameter portion 26a and the nozzle 15. To prevent leakage of liquid from
[0023]
The spout 3 in the container of the present invention has a plurality of circumferential elastic members which are integrally stretched between the inner surface of the nozzle 15 and a valve plate 29 which is in pressure contact with the upper end surface of the spout cylinder 26 and seals its opening. It is supported via the connecting piece 30. In the illustrated example, the elastic connecting piece 30 that extends from the inner surface of the nozzle 15 toward the center and then extends along the inner periphery of the nozzle and extends toward the center again is provided between the inner surface of the nozzle 15 and the outer peripheral surface of the valve plate 29. Three are spanned at equal intervals in the circumferential direction.
[0024]
In the present invention, the lid 3 may be provided with various types of lids as in the embodiment shown in FIGS. The same reference numerals are assigned to the lid, and description thereof is omitted.
[0025]
When the tube container 1 of the present embodiment is used, similarly, when the lid 20 is opened and then the barrel portion 4 is squeezed, the liquid in the pressurized barrel portion 4 resists the elastic force of the elastic connecting piece. Then, the valve plate 29 is pushed open to be poured out from the nozzle 15. When the squeezing of the body 4 is released, the valve plate 29 is immediately closed.
[0026]
【The invention's effect】
As described above, the tube container according to the present invention has the above-described configuration, so that even if it is formed using a synthetic resin material having elasticity, it is put into the container body after the liquid is poured out during use. It is possible to prevent air from entering as much as possible. Moreover, the structure is very simple, and when a lid is provided, it can be formed integrally with the pouring stopper with a synthetic resin.
[0027]
Further, the tube container of the second means can smoothly move the valve plate 19 up and down during the liquid pouring, so that the valve plate 19 does not cause a malfunction.
[0028]
In addition, the tube container of the third means, like the tube container of the first means , may be formed by using a synthetic resin material having elasticity, but the container body after the liquid is poured out during use. It is possible to prevent air from entering the body part as much as possible. Moreover, the structure is very simple, and when a lid is provided, it can be formed integrally with the pouring stopper with a synthetic resin.
[0029]
Further, the tube container of the fourth means has the advantage that the valve plate 29 can be moved up and down smoothly since the deformation width of the elastic connecting piece can be increased, and the liquid can be smoothly poured out.
[0030]
In addition, since the tube container of the fifth means is double-sealed by the close fitting portion of the inner peripheral surface of the nozzle and the close fitting portion of the seal cylinder 28, there is no risk of liquid leakage, and there is no gap a. It has the advantage that it can be easily performed when fitting the stopper 3 to the container body 2.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the same embodiment.
FIG. 3 is a perspective view of the same embodiment.
FIG. 4 is a longitudinal sectional view showing another embodiment of the present invention.
FIG. 5 is a longitudinal sectional view showing still another embodiment of the present invention.
FIG. 6 is a cross-sectional view of the main part of the valve plate portion of the same embodiment.
FIG. 7 is a longitudinal sectional view showing still another embodiment of the present invention.
[Explanation of symbols]
2 ... container body, 3 ... spout, 4 ... trunk, 6 ... mouth and neck, 8 ... top plate, 9 ... spout,
10 ... recessed part, 10a ... bottom wall part, 10b ... hanging wall part, 11 ... guide rib, 13 ... peripheral wall,
14 ... Top wall, 15 ... Nozzle, 18 ... Elastic plate, 19 ... Valve plate, 26 ... Pumping tube,
26a ... 1st reduced diameter part, 26b ... 2nd reduced diameter part, 27 ... Recessed part, 28 ... Seal cylinder, 29 ... Valve plate,
30 ... elastic connecting piece, a ... gap

Claims

The neck portion 6 is raised from the squeezable body 4 and the container body 2 made of a synthetic resin is formed by drilling a spout 9 in the top plate 8 spanning the opening portion of the mouth neck portion 6, and the outer periphery of the mouth neck portion 6 The top wall 14 is extended from the upper end edge of the peripheral wall 13 fitted to the top wall 14, and a pouring nozzle 15 having a base end opened is erected on the top wall 14, and the spout 9 and the nozzle 15 are connected to the liquid. And a discharge port 3 made of synthetic resin in close communication with each other, and a peripheral edge on the top surface of the top plate 8 around the spout 9 via a plurality of elastic plates 18 provided at intervals in the circumferential direction from the inner surface of the nozzle 15 A valve plate 19 having a pressure-welded portion is integrally extended to provide a depressed portion 10 in which the central portion of the top plate 8 is depressed in a cylindrical shape, and the spout 9 is provided in the bottom wall portion 10a of the depressed portion 10. A tube container which is formed by drilling and vertically providing a plurality of circumferential guide ribs 11 on the inner surface of the vertical wall portion 10b of the depressed portion 10.

The neck 6 is erected from the squeezable body 4, and the top plate 8 is integrally stretched over the opening of the neck 6, and a pouring cylinder 26 having a base end opened is erected on the top plate 8. The top wall 14 is extended from the upper end edge of the peripheral wall 13 fitted to the outer periphery of the container body 2 and the neck 6 of the synthetic resin, and the nozzle for pouring is erected by opening the base end to the top wall 14 15 is provided with a synthetic resin pouring stopper 3 in which 15 is liquid-tightly fitted on the outer periphery of the pouring cylinder 26, and a valve plate 29 that presses against the upper end surface of the pouring cylinder 26 and seals the opening thereof 15 is formed by supporting a plurality of circumferentially connected elastic connecting pieces 30 between the inner surface and a concave portion 27 in which the periphery of the extraction tube 26 of the top wall 8 is depressed in an annular shape, A seal cylinder 28 is provided that is closely fitted to the outer wall surface of the recess and is suspended from the back surface of the top wall 14, and the upper portion of the extraction cylinder 26 is arranged from the bottom to the first reduced diameter portion 26 a and the second reduced diameter portion. The inner diameter of the inner peripheral surface of the nozzle 15 is tightly fitted to the outer periphery of the first reduced diameter portion 26a, and a gap a is formed between the extraction tube 26 and the nozzle 15 below the tightly fitted portion. A tube container characterized by being provided.

The tube container according to claim 2, wherein the elastic connecting piece (30) is an elastic connecting piece (30) extending from the inner surface of the nozzle (15) toward the center, extending along the inner periphery of the nozzle (15), and extending toward the center again.