JP2016050003A - Cap for double container - Google Patents

Cap for double container Download PDF

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JP2016050003A
JP2016050003A JP2014176229A JP2014176229A JP2016050003A JP 2016050003 A JP2016050003 A JP 2016050003A JP 2014176229 A JP2014176229 A JP 2014176229A JP 2014176229 A JP2014176229 A JP 2014176229A JP 2016050003 A JP2016050003 A JP 2016050003A
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layer body
inner layer
valve body
communication port
wall
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JP6352116B2 (en
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早川　茂
Shigeru Hayakawa
早川　　茂
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a new cap for a double container in which strength and sealability of a discharge check valve of content are improved.SOLUTION: A cap for a double container includes: a cap main body 10 having a pouring cylinder 14 for pouring a content liquid from an inner layer body 3 which can reduce a volume and can deform, and attached to a mouth part of an outer layer body 4 arranged with the inner layer body arranged on an inner side; an inside plug 20 having a barrier wall 21 positioned between the pouring cylinder and the inner layer body, a communication port 23 for communicating the content liquid, and a cylindrical wall 22; a check valve 40A which closes the communication port and opens the communication port by a pressure increase in the inner layer body to flow the content liquid; and a moving valve element 30 which returns the content liquid remaining in the pouring cylinder to the cylindrical wall by movement from a pouring cylinder side to an inner layer body side. The check valve includes a valve element 43A which is formed in a thin annular shape, and closes the communication port by seating an inner peripheral side end part on the barrier wall.SELECTED DRAWING: Figure 2

Description

本発明は、減容変形可能な内層体とこの内層体を内側に配置した外層体とを備える二重容器に対し、外層体の口部に装着されて内層体に収容した内容液を注出させる二重容器用キャップに関する。   The present invention is directed to a double container having a volume-deformable inner layer body and an outer layer body having the inner layer body arranged on the inside, and the content liquid attached to the mouth of the outer layer body and accommodated in the inner layer body is poured out. The present invention relates to a cap for a double container.

化粧水などの化粧料や、シャンプーやリンス或いは液体石鹸、また食品調味料などを収用する容器としては、このような液体を収容するとともに減容変形可能に設けられる内層体と、この内層体を内側に収めるとともに容器の外殻を形成する外層体とを備える二重容器（デラミ容器、積層剥離容器とも言う）が知られている。このような二重容器においては、外層体の口部に、内容液を注出する注出筒を備えるとともに内層体への外気の侵入を防止する逆止弁を設けた二重容器用キャップ（以下、単に「キャップ」と称する場合もある）が装着される。そして、外層体を押圧することで、外層体と内層体との間の空気を介して内層体内を加圧し、これによって逆止弁の弁体を開放させて内容液を注出する。また外層体には、内層体との間に外気を取り込む貫通孔を設けていて、注出後、外層体が元の形状に復元する際は、この貫通孔から外気が取り込まれ、内層体は減容変形したままで外層体のみが復元する。   As a container for receiving cosmetics such as lotion, shampoo, rinse, liquid soap, food seasoning, etc., an inner layer body that contains such a liquid and can be reduced in volume and deformed, and this inner layer body 2. Description of the Related Art A double container (also referred to as a delamination container or a delamination container) that includes an outer layer body that is housed inside and forms an outer shell of the container is known. In such a double container, a cap for a double container provided with a check-out valve for preventing the entry of outside air into the inner layer body at the mouth of the outer layer body and having a dispensing cylinder for pouring the content liquid ( Hereinafter, it may be simply referred to as a “cap”). Then, by pressing the outer layer body, the inner layer body is pressurized via the air between the outer layer body and the inner layer body, thereby opening the valve body of the check valve and pouring out the content liquid. In addition, the outer layer body is provided with a through hole that takes in outside air between the inner layer body, and when the outer layer body is restored to its original shape after pouring, the outside air is taken in from the through hole, and the inner layer body is Only the outer layer is restored while the volume is reduced.

ところで、上記の二重容器用キャップにおいて内層体への外気の侵入を防止する逆止弁には、例えば特許文献１のような円筒形状の環状壁の径方向内側に、３つのアームを介して連結する平板状の弁体が用いられている。この種の逆止弁では、外層体を押圧することにより外層体と内層体との間の空気が圧縮され、これに伴う圧力上昇により弁体が注出筒の方向に押し上げられて内層体に通じる連通口を開放し、内容液を注出することができる。また、内容液の注出後に外層体が元の形状に復元すると、外層体と内層体との間の空気の圧力が低下し、弁体は圧力差及び３つのアームの弾性力により元の閉鎖位置へと戻る。   By the way, in the check valve for preventing the outside air from entering the inner layer body in the above-mentioned double container cap, for example, on the radially inner side of a cylindrical annular wall as in Patent Document 1, via three arms. A plate-shaped valve body to be connected is used. In this type of check valve, the air between the outer layer body and the inner layer body is compressed by pressing the outer layer body, and the valve body is pushed up in the direction of the dispensing cylinder due to the pressure increase caused thereby. The communicating port can be opened to dispense the content liquid. In addition, when the outer layer body is restored to its original shape after the content liquid is poured out, the air pressure between the outer layer body and the inner layer body is reduced, and the valve body is closed due to the pressure difference and the elastic force of the three arms. Return to position.

特開２０１３−１５１３１６号公報JP 2013-151316 A

しかし、上記の構造の逆止弁では、平板状の弁体によるシール機構を採用していたため、吐出部付近の成形不良及び平板のゆがみによってシール性の確保が困難となる場合があった。   However, since the check valve having the above-described structure employs a sealing mechanism using a flat plate-like valve element, it may be difficult to ensure sealing performance due to molding failure near the discharge portion and distortion of the flat plate.

また、弁体が細長いアームにより支持されているため、アーム部等に成型不良が発生した場合にも、弁体としてのシール性が稀に損なわれるという問題があった。また、上記アームの幅は、キャップの大きさ等により制限されるため、幅を太くしてアームの強度を向上させて弁体の信頼性を高めることにも限界がある。   In addition, since the valve body is supported by an elongated arm, there is a problem that the sealing performance as the valve body is rarely impaired even when molding failure occurs in the arm portion or the like. Further, since the width of the arm is limited by the size of the cap or the like, there is a limit to increase the reliability of the valve body by increasing the width and improving the strength of the arm.

本発明は、このような問題点を解決することを課題とするものであり、その目的は、内容液の吐出用逆止弁の強度及びシール性を向上させた、新たな二重容器用キャップを提案するところにある。   An object of the present invention is to solve such problems, and a purpose of the present invention is to provide a new double-container cap that improves the strength and sealing performance of a check valve for discharging the content liquid. There is a place to propose.

本発明は、減容変形可能な内層体からの内容液を注出する注出筒を有し、該内層体を内側に配置した外層体の口部に装着されるキャップ本体と、
該注出筒と該内層体との間に位置する隔壁を有し、該隔壁に、内容液を通す連通口と、
一端に注出筒側開口を有し他端に内層体側開口を有する筒状壁とを備える中栓と、
該連通口を閉鎖する一方、該内層体内の圧力上昇によって該連通口を開放して内容液を流す逆止弁と、
該筒状壁内に移動可能に設けられ、該注出筒側から該内層体側への移動によって該注出筒内に残存する内容液を該筒状壁に向けて引き戻す移動弁体とを備える二重容器用キャップにおいて、
前記逆止弁は、前記連通口及び前記注出筒側開口を取り囲む環状壁と、薄肉の環状をなし、外周側端部を該環状壁の内面に連結させると共に、内周側端部を前記隔壁に着座させて該連通口を閉鎖する弁体とを有する、二重容器用キャップである。 The present invention has a dispensing cylinder for dispensing the content liquid from the volume-deformable inner layer body, and a cap body attached to the mouth of the outer layer body with the inner layer body disposed inside,
A partition located between the pouring tube and the inner layer body, and a communication port through which the content liquid passes,
An inner plug provided with a cylindrical wall having a dispensing cylinder side opening at one end and an inner layer body side opening at the other end;
A check valve that closes the communication port while opening the communication port due to an increase in pressure in the inner layer to flow the content liquid;
A movable valve body that is movably provided in the cylindrical wall and draws back the content liquid remaining in the extraction cylinder toward the cylindrical wall by movement from the extraction cylinder side to the inner layer body side. In the double container cap,
The check valve has an annular wall that surrounds the communication port and the extraction cylinder side opening, and a thin annular shape. The outer peripheral end is connected to the inner surface of the annular wall, and the inner peripheral end is A double container cap having a valve body that is seated on a partition wall and closes the communication port.

前記弁体は、注出筒側に凸となる湾曲形状であることが好ましい。   It is preferable that the valve body has a curved shape that protrudes toward the dispensing cylinder.

前記内周側端部と前記移動弁体とを、周方向に間隔をあけて配置される連結部で接続することが好ましい。   It is preferable that the inner peripheral side end and the moving valve body are connected by a connecting portion that is arranged at an interval in the circumferential direction.

前記移動弁体は、前記注出筒側にのみ開口し、前記筒状壁の中心軸線と同軸上に配置された筒型形状をなすことが好ましい。   It is preferable that the moving valve body has a cylindrical shape that opens only on the side of the dispensing cylinder and is arranged coaxially with the central axis of the cylindrical wall.

本発明の二重容器用キャップは、注出筒と内層体との間に位置する隔壁に内容液を通す連通口を設けた中栓と、連通口を閉鎖するための薄肉の環状をなす弁体を有する逆止弁とを備えるものである。このように逆止弁を構成する弁体を薄肉の環状部材で構成することにより、弁体の成型不良等に起因する強度不足、及びシール性の低下を防止することができる。   The cap for a double container according to the present invention includes an inner plug provided with a communication port through which a liquid content is passed through a partition located between a dispensing cylinder and an inner layer body, and a thin annular valve for closing the communication port And a check valve having a body. Thus, by comprising the valve body which comprises a non-return valve with a thin annular member, the strength shortage resulting from the molding defect of a valve body, etc. and the sealing performance fall can be prevented.

また、弁体を注出筒側に凸となる湾曲形状とすることにより、所定の内圧がかかるまで逆止弁の閉鎖状態を維持することができる。   Moreover, by making the valve body into a curved shape that protrudes toward the dispensing cylinder, the check valve can be kept closed until a predetermined internal pressure is applied.

また、弁体の内周側端部の更に内周側に、周方向に間隔をあけて配置される連結部を介して移動弁体を接続することにより、容器を傾倒姿勢から起立姿勢に戻さなくても、外層体の胴部への押圧を解除し、弁体が閉鎖位置に戻ることにより、移動弁体も内層体側へと移動する。従って、容器の姿勢変更を行うことなく、液だれを効果的に防止することができる。また、弁体と移動弁体とを一体成型することができるので、移動弁体の飛び出し等の懸念が無く、また部品点数及び組み立て工数を削減することができる。   In addition, the container is returned from the tilted posture to the standing posture by connecting the movable valve body to the inner peripheral side of the inner peripheral side end portion of the valve body via a connecting portion that is spaced apart in the circumferential direction. Even if it does not exist, a movement valve body also moves to the inner layer body side by canceling the pressure to the trunk of the outer layer body and returning the valve body to the closed position. Therefore, dripping can be effectively prevented without changing the attitude of the container. Moreover, since the valve body and the moving valve body can be integrally molded, there is no concern about the moving valve body popping out, and the number of parts and the number of assembly steps can be reduced.

また、移動弁体が注出筒側にのみ開口し、筒状壁の中心軸線と同軸上に配置された筒型形状をなすことにより、移動弁体が筒状壁内を中心軸に沿って滑らかに移動することができ、注出筒等に残留した内容液をより確実に筒状壁側に移動させることができる。   In addition, the moving valve body is opened only on the side of the dispensing cylinder and has a cylindrical shape arranged coaxially with the central axis of the cylindrical wall, so that the moving valve body extends along the central axis in the cylindrical wall. It can move smoothly, and the liquid content remaining in the dispensing cylinder or the like can be more reliably moved to the cylindrical wall side.

本発明の第１実施形態に係る二重容器用キャップを、外層体の口部に装着した状態を示す断面図である。It is sectional drawing which shows the state which mounted | wore the mouth part of the outer layer body with the cap for double containers which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る二重容器用キャップにおける弁体の開閉状態を示す部分拡大断面図である。It is a partial expanded sectional view which shows the opening-and-closing state of the valve body in the cap for double containers which concerns on 1st Embodiment of this invention. 図２に示す矢印Ａに沿う矢視図である。FIG. 3 is an arrow view along arrow A shown in FIG. 2. 図２に示す矢印Ｂに沿う矢視図である。FIG. 3 is an arrow view along arrow B shown in FIG. 2. 本発明の第２実施形態に係る二重容器用キャップにおける弁体が開いた状態を示す部分拡大断面図である。It is a partial expanded sectional view which shows the state which the valve body in the cap for double containers which concerns on 2nd Embodiment of this invention opened. 図５に示す矢印Ｃに沿う矢視図である。FIG. 6 is an arrow view along arrow C shown in FIG. 5.

以下、図面を参照して、本発明をより具体的に説明する。   Hereinafter, the present invention will be described more specifically with reference to the drawings.

図１は、本発明の第１実施形態である二重容器用キャップ１Ａ（以下、「キャップ１Ａ」という）が、これに適合する二重容器２（以下、「容器２」という）に装着された状態を示す。キャップ１Ａは、キャップ本体１０、中栓２０、移動弁体３０、逆止弁４０Ａ、及び蓋体５０で構成されている。また、容器２は、内層体３、及び外層体４で構成されている。   FIG. 1 shows that a double container cap 1A (hereinafter referred to as “cap 1A”) according to a first embodiment of the present invention is attached to a double container 2 (hereinafter referred to as “container 2”) that fits the cap. Indicates the state. The cap 1 </ b> A includes a cap body 10, an inner plug 20, a moving valve body 30, a check valve 40 </ b> A, and a lid body 50. The container 2 includes an inner layer body 3 and an outer layer body 4.

まず、容器２について説明する。容器２を構成する内層体３及び外層体４は、本実施形態ではともに合成樹脂製であって、相互に相溶性が低い樹脂を用いている。また容器２は、内層体３の合成樹脂素材と外層体４の合成樹脂素材とを積層して形成されるパリソンに対し、ブロー成形を行うことによって形作っている。また、図示は省略するが、内層体３と外層体４との間に、縦方向に延在して内層体３と外層体４とを部分的に接合する、１本或いは複数本の接着帯を設けてもよい。   First, the container 2 will be described. In the present embodiment, the inner layer body 3 and the outer layer body 4 constituting the container 2 are both made of synthetic resin and use resins having low compatibility with each other. The container 2 is formed by blow molding a parison formed by laminating the synthetic resin material of the inner layer body 3 and the synthetic resin material of the outer layer body 4. Although not shown in the figure, one or a plurality of adhesive bands extending in the vertical direction between the inner layer body 3 and the outer layer body 4 and partially joining the inner layer body 3 and the outer layer body 4 May be provided.

内層体３は、減容変形可能に形成されるものであって、本実施形態では、積層状態で形成された容器２に対し、外層体４から剥離させることで得られるものである。内層体３は、その内側に内容液を収容する収容空間Ｓと、この収容空間Ｓにつながる上部開口３ａを備えている。   The inner layer body 3 is formed so as to be capable of volumetric deformation. In this embodiment, the inner layer body 3 is obtained by peeling the container 2 formed in a laminated state from the outer layer body 4. The inner layer body 3 includes a storage space S for storing the content liquid and an upper opening 3a connected to the storage space S.

外層体４は、円筒状の口部周壁４ａに、図示を省略する復元自在な可撓性を有する胴部、及び胴部の下端を閉鎖する底部を連結したものである。口部周壁４ａの外周面には雄ねじ部４ｂを設けている。また、口部周壁４ａには、内層体３との相互間に空気を取り込むための貫通孔４ｃを設けていて、更に、貫通孔４ｃを設けた外周面には、上下方向に雄ねじ部４ｂを切り欠く溝部４ｄを設けている。   The outer layer body 4 is configured by connecting a cylindrical mouth peripheral wall 4a with a reversible flexible trunk (not shown) and a bottom for closing the lower end of the trunk. A male screw portion 4b is provided on the outer peripheral surface of the mouth peripheral wall 4a. Further, the mouth peripheral wall 4a is provided with a through hole 4c for taking in air between the inner layer body 3 and the outer peripheral surface provided with the through hole 4c is provided with a male screw part 4b in the vertical direction. A notched groove 4d is provided.

次に、キャップ１Ａに関し、キャップ本体１０について説明する。キャップ本体１０は、口部周壁４ａを取り囲む外周壁１１を備えていて、外周壁１１の内周面には、口部周壁４ａの雄ねじ部４ｂに対応する雌ねじ部１２が形成されている。また、外周壁１１の上部には、頂壁１３が一体に連結している。頂壁１３には、内容液を注出する注出筒１４が設けられている。また、頂壁１３の下面には、同心二重配置となる一対の上部嵌合壁１５が設けられている。更に、上部嵌合壁１５より径方向外側には、頂壁１３を貫通する外気導入孔１６を設けている。本実施形態では、頂壁１３の中央部分と外周部分との間に段差を設け（中央部分に対し外周部分は高さが低くなっている）、この段差に径方向外側に向けて開口するようにして外気導入孔１６を設けている。このように構成することで、頂壁１３上に溢れた内容物が、外気導入孔１６に入り難くなる。なお、外周壁１１の下端は口部周壁４ａと気密に当接していて、口部周壁４ａと外周壁１１との間には、貫通孔４ｃに通じる通気路Ｔが設けられている。   Next, the cap body 10 will be described with respect to the cap 1A. The cap body 10 includes an outer peripheral wall 11 surrounding the mouth peripheral wall 4a, and an internal thread portion 12 corresponding to the male screw portion 4b of the mouth peripheral wall 4a is formed on the inner peripheral surface of the outer peripheral wall 11. A top wall 13 is integrally connected to the upper portion of the outer peripheral wall 11. The top wall 13 is provided with a dispensing cylinder 14 for dispensing the content liquid. In addition, a pair of upper fitting walls 15 having a concentric double arrangement is provided on the lower surface of the top wall 13. Further, an outside air introduction hole 16 penetrating the top wall 13 is provided on the outer side in the radial direction from the upper fitting wall 15. In the present embodiment, a step is provided between the central portion and the outer peripheral portion of the top wall 13 (the outer peripheral portion has a lower height than the central portion), and the step opens toward the radially outer side. Thus, the outside air introduction hole 16 is provided. By configuring in this way, the contents overflowing on the top wall 13 become difficult to enter the outside air introduction hole 16. Note that the lower end of the outer peripheral wall 11 is in airtight contact with the mouth peripheral wall 4a, and an air passage T leading to the through hole 4c is provided between the mouth peripheral wall 4a and the outer peripheral wall 11.

なお、図２に示すように、リング形状の突起１８が、頂壁１３に対して注出筒１４とは反対側に円周上の一部に切り欠きを設けて突出している。   As shown in FIG. 2, the ring-shaped protrusion 18 protrudes from the top wall 13 with a notch provided on a part of the circumference on the opposite side to the extraction tube 14.

キャップ本体１０の内側には、中栓２０が設けられる。中栓２０は、注出筒１４と内層体３との間に位置するとともに、内層体３の上部開口３ａを覆う隔壁２１を備えている。   An inner plug 20 is provided inside the cap body 10. The inner plug 20 includes a partition wall 21 that is positioned between the dispensing cylinder 14 and the inner layer body 3 and covers the upper opening 3 a of the inner layer body 3.

隔壁２１には、一端に、注出筒１４側に開口する注出筒側開口を有すると共に、他端に、内層体３の収容空間Ｓ側に開口する内層体側開口を有する筒状壁２２が設けられている。本実施形態の筒状壁２２は、図２に示すように、隔壁２１の中央部（容器２の中心軸Ｍ上）に貫通孔２２ａを設け、この貫通孔２２ａの縁部から収容空間Ｓに向けて円筒部２２ｂを延在させ、傾斜部２２ｃを介して、外周面に少なくとも１つの貫通孔２２ｄ（本実施形態では、図２、図４に示すようにスリット状に４つ設けている）を有する有底円筒状の底部２２ｅを一体に連結させたものである。なお、本実施形態における注出筒側開口は貫通孔２２ａに対応し、内層体側開口は貫通孔２２ｄに対応する。また隔壁２１には、筒状壁２２より外周側にこの隔壁２１を貫通する孔（連通口２３）が設けられている。本実施形態では、図３に示すように、筒状壁２２を取り囲んで均等配置で４つ設けている。ここで、筒状壁２２における内層体側開口（貫通孔２２ｄ）の総開口面積と、連通口２３の総開口面積との関係は、連通口２３の総開口面積の方が大きくなるようにしている。ここで、連通口２３の総開口面積とは、それぞれの連通口２３における開口面積に対し、これらを合計した面積をいう。貫通孔２２ｄについても同様である。   The partition wall 21 has a cylindrical wall 22 having an extraction cylinder side opening that opens to the extraction cylinder 14 side at one end and an inner layer body side opening that opens to the accommodation space S side of the inner layer body 3 at the other end. Is provided. As shown in FIG. 2, the cylindrical wall 22 of the present embodiment is provided with a through hole 22a in the central portion of the partition wall 21 (on the central axis M of the container 2), and from the edge of the through hole 22a to the accommodation space S. The cylindrical portion 22b is extended toward the surface, and at least one through hole 22d is provided on the outer peripheral surface via the inclined portion 22c (in the present embodiment, four slits are provided as shown in FIGS. 2 and 4). A bottomed cylindrical bottom portion 22e having a joint is integrally connected. In addition, the extraction cylinder side opening in this embodiment corresponds to the through hole 22a, and the inner layer body side opening corresponds to the through hole 22d. Further, the partition wall 21 is provided with a hole (communication port 23) penetrating the partition wall 21 on the outer peripheral side from the cylindrical wall 22. In the present embodiment, as shown in FIG. 3, four tubes are provided in a uniform arrangement surrounding the cylindrical wall 22. Here, the relationship between the total opening area of the inner layer side opening (through hole 22d) in the cylindrical wall 22 and the total opening area of the communication port 23 is such that the total opening area of the communication port 23 is larger. . Here, the total opening area of the communication ports 23 means the total area of the opening areas of the respective communication ports 23. The same applies to the through hole 22d.

また隔壁２１は、連通口２３より径方向外側において収容空間Ｓ側に屈曲する段部２４を備えていて、段部２４より径方向外側には、段部２４との間で上向き開放の溝を形成する嵌合壁２５が設けられている。そして隔壁２１の下面には、外層体４との間で内層体３を挟み込む環状のシール壁２６を設けている。なお、図２に示すように隔壁２１の外縁には、少なくとも１つの溝２７が設けられている。   Further, the partition wall 21 includes a step portion 24 that is bent radially outward from the communication port 23 toward the accommodation space S, and a groove that is open upward from the step portion 24 is formed radially outward from the step portion 24. A fitting wall 25 to be formed is provided. An annular seal wall 26 that sandwiches the inner layer body 3 with the outer layer body 4 is provided on the lower surface of the partition wall 21. As shown in FIG. 2, at least one groove 27 is provided on the outer edge of the partition wall 21.

筒状壁２２内には、本実施形態では球状となる移動弁体３０が設けられている。筒状壁２２と移動弁体３０との間には、容器２の姿勢変更に応じて移動弁体３０が移動可能、且つ内容液はほとんど通過させない（実質的に通過させない）程度の隙間が設けられている。なお、筒状壁２２の注出筒１４側は、貫通孔２２ａによって開口し、収容空間Ｓ側は、貫通孔２２ｄによって開口しているので、筒状壁２２内に入り込んだ内容液が移動弁体３０の移動を妨げることはない。また移動弁体３０は、容器２を起立姿勢（容器２の底部を水平な台の上に載置した状態の姿勢）にすることで、筒状壁２２の傾斜部２２ｃに着座する。これによって収容空間Ｓをシールすることができる。   In the cylindrical wall 22, a moving valve body 30 that is spherical in this embodiment is provided. A gap is provided between the cylindrical wall 22 and the moving valve body 30 so that the moving valve body 30 can move according to the change in the attitude of the container 2 and the content liquid hardly passes (substantially does not pass). It has been. The cylindrical wall 22 is opened by the through-hole 22a on the side of the extraction cylinder 14 and the accommodation space S side is opened by the through-hole 22d. The movement of the body 30 is not hindered. Further, the moving valve body 30 is seated on the inclined portion 22c of the cylindrical wall 22 by placing the container 2 in an upright posture (a posture in which the bottom portion of the container 2 is placed on a horizontal base). As a result, the accommodation space S can be sealed.

キャップ本体１０と中栓２０との間には、逆止弁４０Ａが設けられている。図２及び図４に示すように逆止弁４０Ａは、本実施形態では円筒状の環状壁４１の径方向内側に、円環状且つ薄肉の弁体４３Ａをなして形成される。弁体４３Ａは、外周側端部４９Ａを環状壁４１の内面に連結させると共に、内周側端部４８Ａを隔壁２１に着座させることにより、連通口２３を閉鎖する。弁体４３Ａと環状壁４１とは、弁体４３Ａの内周側端部４８Ａが着座する高さよりも注出筒１４寄りで且つ環状壁４１のほぼ中央の高さで連結される。また、環状の弁体４３Ａは、図１及び図２から分かるように、注出筒１４側に凸となる湾曲形状に形成されている。   A check valve 40A is provided between the cap body 10 and the inner plug 20. As shown in FIGS. 2 and 4, the check valve 40 </ b> A is formed by forming an annular and thin valve body 43 </ b> A on the radially inner side of the cylindrical annular wall 41 in the present embodiment. The valve body 43 </ b> A closes the communication port 23 by connecting the outer peripheral end 49 </ b> A to the inner surface of the annular wall 41 and seating the inner peripheral end 48 </ b> A on the partition wall 21. The valve body 43A and the annular wall 41 are connected at a height that is closer to the dispensing cylinder 14 than the height at which the inner peripheral side end 48A of the valve body 43A is seated and at the substantially central height of the annular wall 41. Further, as can be seen from FIGS. 1 and 2, the annular valve body 43 </ b> A is formed in a curved shape that is convex toward the dispensing cylinder 14.

このように逆止弁４０Ａを構成する弁体４３Ａを薄肉の円環状部材で構成することにより、従来の逆止弁のようなアーム部等の長細い部位が無く成型不良が生じにくい。このため、弁体の成型不良等に起因する強度不足、及び弁体の傾きに起因するシール性の低下等を防止することができる。また、注出筒１４側に凸となる湾曲形状の採用により、弁体４３Ａは所定の内圧がかかるまで確実に閉鎖状態を維持することができる。   Thus, by forming the valve body 43A constituting the check valve 40A with a thin annular member, there is no long and thin portion such as an arm portion as in the conventional check valve, and molding defects are unlikely to occur. For this reason, it is possible to prevent a lack of strength due to a defective molding of the valve body and a decrease in sealing performance due to the inclination of the valve body. In addition, by adopting a curved shape that protrudes toward the dispensing cylinder 14, the valve body 43A can be reliably maintained in a closed state until a predetermined internal pressure is applied.

また、弁体４３Ａの中央には弁体開口４４（図４参照）が設けられ、これにより筒状壁２２の貫通孔２２ａは常時開放される。逆止弁４０Ａは、図２に示すようにキャップ本体１０、中栓２０に対して取り付けた際、環状壁４１の下部が段部２４と嵌合壁２５との間で嵌合保持され、環状壁４１の上部が一対の上部嵌合壁１５で嵌合保持されるようになっている。これにより、図２に示すように、環状壁４１の径方向内側には、連通口２３と注出筒１４とを連通させて内容液の流路を形成する内側空間Ｋ１が区画形成され、環状壁４１の径方向外側には、外気導入孔１６と溝２７とを連通させて空気の流路を形成する外側空間Ｋ２が区画形成される。   Further, a valve element opening 44 (see FIG. 4) is provided at the center of the valve element 43A, whereby the through hole 22a of the cylindrical wall 22 is always opened. When the check valve 40A is attached to the cap body 10 and the inner plug 20 as shown in FIG. 2, the lower portion of the annular wall 41 is fitted and held between the step portion 24 and the fitting wall 25, The upper part of the wall 41 is fitted and held by a pair of upper fitting walls 15. As a result, as shown in FIG. 2, an inner space K <b> 1 is formed on the radially inner side of the annular wall 41 so that the communication port 23 and the extraction cylinder 14 communicate with each other to form a flow path for the content liquid. On the radially outer side of the wall 41, an outer space K <b> 2 is formed in which an outside air introduction hole 16 and the groove 27 are communicated to form an air flow path.

なお、本実施形態においては、弁体４３Ａを薄肉の円環状部材で構成したが、この態様には限定されない。矩形形状等であっても狭小部が少なく成形性に有利な形状であれば良い。   In the present embodiment, the valve body 43A is formed of a thin annular member, but is not limited to this mode. Even if it is a rectangular shape etc., it should just be a shape with few narrow parts and advantageous for a moldability.

蓋体５０は、図１に示すように、ヒンジ５１を介してキャップ本体１０の外周壁１１に連結していて、ヒンジ５１で折り曲げることで、注出筒１４及び外気導入孔１６を覆い隠すことができる。より詳細には、蓋体５０は、平板状の上壁５２と、上壁５２の縁部に連結するとともに外周壁１１に連なる形状となる蓋体周壁５３とを備えていて、上壁５２には、蓋体５０を閉めた際に注出筒１４の内側に入り込んで注出筒１４をシールする筒状のシール部５４が設けられている。なお、蓋体５０は、ヒンジ５１を設けずにキャップ本体１０とは別体のものとし、ねじやアンダーカットでキャップ本体１０に装着するように構成してもよい。   As shown in FIG. 1, the lid 50 is connected to the outer peripheral wall 11 of the cap body 10 via a hinge 51, and covers the dispensing cylinder 14 and the outside air introduction hole 16 by being bent by the hinge 51. Can do. More specifically, the lid 50 includes a flat plate-like upper wall 52 and a lid peripheral wall 53 that is connected to the edge of the upper wall 52 and is continuous with the outer peripheral wall 11. Is provided with a cylindrical seal portion 54 that enters the inside of the extraction cylinder 14 and seals the extraction cylinder 14 when the lid 50 is closed. Note that the lid 50 may be configured separately from the cap body 10 without providing the hinge 51, and may be configured to be attached to the cap body 10 with screws or undercuts.

上記のように構成されるキャップ１Ａから内容液を吐出するにあたっては、図１に仮想線で示すように蓋体５０を開き、容器２を起立姿勢から傾倒姿勢に姿勢変更して、外層体４の胴部を押圧する。これにより、筒状壁２２内の移動弁体３０は注出筒１４側に移動し、また、内層体３と外層体４との間の空気を介して収容空間Ｓが加圧される。なお、外層体４の貫通孔４ｃとキャップ本体１０の外気導入孔１６との間は、図１及び図２に示すように、通気路Ｔ、溝２７、及び外側空間Ｋ２でつながっている。従って常時開放された状態であるものの、溝２７は狭くなっていて空気が流れる際に抵抗が生じるため、外層体４を押圧しても、内層体３と外層体４との間の空気はそれ程多く漏れ出すことはなく、収容空間Ｓへの加圧が阻害されることはない。そして、加圧された内容液が、弁体４３Ａを持ち上げて図２の仮想線位置から実線位置まで移動させ、内容液は連通口２３から流出し、内側空間Ｋ１を経由して注出筒１４から外界に注出される。ここで、筒状壁２２は隔壁２１の中央部に設けられているので、筒状壁２２の周囲における内容液の流れは均等化され、内容液が注出される際の液の乱れが抑制される。また、連通口２３が１つのみの場合には、弁体４３Ａは、連通口２３を設けた部位が優先して持ち上がって傾いてしまうものの、ここでは複数配置しているので、弁体４３Ａの傾きが生じにくくなり、流れの乱れがより起きにくくなる。筒状壁２２における内層体３側の開口（貫通孔２２ｄ）の総開口面積に対し、連通口２３の総開口面積を大きくしているので、内容液が流れる際、連通口２３での抵抗がより軽減されてスムーズに注出させることができる。   In discharging the content liquid from the cap 1A configured as described above, the lid body 50 is opened as shown by the phantom line in FIG. 1, and the posture of the container 2 is changed from the standing posture to the tilting posture, so that the outer layer body 4 Press the torso. Thereby, the moving valve body 30 in the cylindrical wall 22 moves to the extraction cylinder 14 side, and the accommodation space S is pressurized via the air between the inner layer body 3 and the outer layer body 4. As shown in FIGS. 1 and 2, the through hole 4c of the outer layer body 4 and the outside air introduction hole 16 of the cap body 10 are connected by an air passage T, a groove 27, and an outer space K2. Accordingly, although the groove 27 is narrow and resistance is generated when air flows, the air between the inner layer body 3 and the outer layer body 4 is much reduced even when the outer layer body 4 is pressed. Many leaks do not occur, and pressurization to the accommodation space S is not hindered. Then, the pressurized content liquid lifts the valve body 43A and moves it from the phantom line position to the solid line position in FIG. 2, and the content liquid flows out from the communication port 23 and passes through the inner space K1 to the dispensing cylinder 14. Is poured out to the outside world. Here, since the cylindrical wall 22 is provided in the center part of the partition 21, the flow of the content liquid around the cylindrical wall 22 is equalized, and the disturbance of the liquid when the content liquid is poured out is suppressed. The In addition, when there is only one communication port 23, the valve body 43A is preferentially lifted and tilted at the portion where the communication port 23 is provided. Inclination is less likely to occur and flow disturbance is less likely to occur. Since the total opening area of the communication port 23 is made larger than the total opening area of the opening (through hole 22d) on the inner layer body 3 side in the cylindrical wall 22, when the content liquid flows, the resistance at the communication port 23 is reduced. It is reduced and can be poured smoothly.

なお、筒状壁２２内に収容された移動弁体３０は、外層体４の胴部が押圧された際に注出筒１４側に移動するが、突起１８と接触することによって筒状壁２２からの飛び出しを防止している。   The moving valve body 30 accommodated in the cylindrical wall 22 moves toward the dispensing cylinder 14 when the body portion of the outer layer body 4 is pressed. Prevents jumping out from.

所要量の内容液を注出した後は、外層体４の胴部への押圧を解除する。これによって収容空間Ｓ内の圧力が下がり、弁体４３Ａが連通口２３を閉鎖するので、収容空間Ｓ内への外気の入り込みが防止できる。また、外層体４は、それ自身の復元力により元の形状に戻ろうとするため、内層体３と外層体４との相互間は負圧状態となり、これによって、外気導入孔１６から外側空間Ｋ２、溝２７、通気路Ｔを経て、貫通孔４ｃより空気が導入され、内層体３を減容変形させたまま外層体４が復元する。   After the required amount of content liquid has been poured out, the pressure on the body of the outer layer body 4 is released. As a result, the pressure in the accommodation space S is reduced and the valve body 43A closes the communication port 23, so that outside air can be prevented from entering the accommodation space S. Further, since the outer layer body 4 tends to return to its original shape by its own restoring force, the inner layer body 3 and the outer layer body 4 are in a negative pressure state, and thereby, the outer space K2 from the outer air introduction hole 16. The air is introduced from the through hole 4c through the groove 27 and the air passage T, and the outer layer body 4 is restored while the inner layer body 3 is deformed and reduced in volume.

弁体４３Ａが連通口２３を閉鎖すると、注出筒１４及び内側空間Ｋ１内には内容液が残留したままになっているものの、容器２を元の起立姿勢に戻すと、移動弁体３０は、それ自身の自重や収容空間Ｓ内の圧力低下によって内層体３の収容空間Ｓ側に移動する。これにより、筒状壁２２における注出筒１４側には、スペースが生じることになるため、注出筒１４及び内側空間Ｋ１内に残留した内容液を、弁体開口４４を通して筒状壁２２側に移動させることができ（サックバック機能）、液だれを有効に防止することができる。   When the valve body 43A closes the communication port 23, the content liquid remains in the dispensing cylinder 14 and the inner space K1, but when the container 2 is returned to the original standing posture, the moving valve body 30 is The inner layer body 3 moves to the accommodation space S side due to its own weight or a pressure drop in the accommodation space S. As a result, a space is generated on the side of the extraction cylinder 14 in the cylindrical wall 22, so that the content liquid remaining in the extraction cylinder 14 and the inner space K <b> 1 passes through the valve body opening 44 to the cylindrical wall 22 side. (Suck back function), and dripping can be effectively prevented.

以上のように、本実施形態によれば、弁体４３Ａが薄肉の円環状形状を採用したことにより、従来の逆止弁のようなアーム部等の長細い部位が無く成型不良が生じにくい。このため、弁体の成型不良等に起因する強度不足、及びシール性の低下を防止することができる。   As described above, according to the present embodiment, since the valve body 43A adopts a thin annular shape, there is no long thin portion such as an arm portion as in the conventional check valve, and molding defects are unlikely to occur. For this reason, it is possible to prevent a lack of strength and a decrease in sealing performance due to a defective molding of the valve body.

また、本実施形態によれば、注出筒１４側に凸となる湾曲形状の採用により、弁体４３Ａは所定の内圧がかかるまで確実に閉鎖状態を維持することができる。   In addition, according to the present embodiment, by adopting a curved shape that protrudes toward the dispensing cylinder 14, the valve body 43A can be reliably maintained in a closed state until a predetermined internal pressure is applied.

次に、本発明に従う第２実施形態の二重容器用キャップについて、図５及び図６を参照しつつ説明する。なお、上述した実施形態と同一の機能を有する部位は、同一の符号を付して説明を省略する。   Next, a double container cap according to a second embodiment of the present invention will be described with reference to FIGS. In addition, the site | part which has the same function as embodiment mentioned above attaches | subjects the same code | symbol, and abbreviate | omits description.

図５に示す逆止弁４０Ｂにおいて、弁体４３Ｂは、弁体４１Ａと同様に外周側端部４９Ｂを環状壁４１の内面に連結させると共に、内周側端部４８Ｂを隔壁２１に着座させることにより、連通口２３を閉鎖する。円環状の弁体４３Ｂは、図５から分かるように、注出筒１４側に凸となる湾曲形状に形成している。   In the check valve 40B shown in FIG. 5, the valve element 43B connects the outer peripheral end 49B to the inner surface of the annular wall 41 and seats the inner peripheral end 48B on the partition wall 21 in the same manner as the valve element 41A. Thus, the communication port 23 is closed. As can be seen from FIG. 5, the annular valve body 43 </ b> B is formed in a curved shape that is convex toward the dispensing cylinder 14.

そして、逆止弁４０Ｂは、図５に示すように弁体４３Ｂの内周側端部４８Ｂの更に内周側に、移動弁体４６を、周方向に間隔をあけて配置される連結部４５（図６参照）によって接続する。これにより、隣り合う連結部４５の間には、スリット４７が形成される。   As shown in FIG. 5, the check valve 40 </ b> B has a connecting valve 45 disposed on the inner peripheral side end portion 48 </ b> B of the valve body 43 </ b> B with the moving valve body 46 disposed at intervals in the circumferential direction. (See FIG. 6). Thereby, a slit 47 is formed between the adjacent connecting portions 45.

本実施形態にかかる移動弁体４６は、注出筒１４側にのみ開口し、筒状壁２２の中心軸線と同軸上に配置された筒型形状をなすように構成される。移動弁体４６は、例えば、連結部４５及び弁体４３Ｂと共に一体成型することができる。   The moving valve body 46 according to the present embodiment is configured to open only on the side of the dispensing cylinder 14 and to have a cylindrical shape that is arranged coaxially with the central axis of the cylindrical wall 22. The moving valve body 46 can be integrally molded with the connecting portion 45 and the valve body 43B, for example.

上記のように構成される本実施形態のキャップ１Ｂから内容液を吐出するにあたっては、容器２を起立姿勢から傾倒姿勢に姿勢変更して、外層体４の胴部を押圧する。これにより、内層体３と外層体４との間の空気を介して収容空間Ｓが加圧される。そして、加圧された内容液が、弁体４３Ｂを持ち上げて連通口２３から流出し、連結部４５に隣接するスリット４７及び内側空間Ｋ１を経由して注出筒１４から外界に注出される。このとき、移動弁体４６は、弁体４３Ｂと共に注出筒１４側へ移動する。   When discharging the content liquid from the cap 1B of the present embodiment configured as described above, the posture of the container 2 is changed from the standing posture to the tilted posture, and the body portion of the outer layer body 4 is pressed. Thereby, the accommodation space S is pressurized via the air between the inner layer body 3 and the outer layer body 4. Then, the pressurized content liquid lifts the valve body 43B and flows out from the communication port 23, and is poured out from the dispensing cylinder 14 to the outside via the slit 47 adjacent to the connecting portion 45 and the inner space K1. At this time, the moving valve body 46 moves to the dispensing cylinder 14 side together with the valve body 43B.

所要量の内容液を注出した後は、外層体４の胴部への押圧を解除する。これによって収容空間Ｓ内の圧力が下がり、弁体４３Ｂが連通口２３を閉鎖するので、収容空間Ｓ内への外気の入り込みが防止できる。また、外層体４は、それ自身の復元力により元の形状に戻ろうとするため、内層体３と外層体４との相互間は負圧状態となり、これによって、外気導入孔１６から外側空間Ｋ２、溝２７、通気路Ｔを経て、貫通孔４ｃより空気が導入され、内層体３を減容変形させたまま外層体４が復元する。   After the required amount of content liquid has been poured out, the pressure on the body of the outer layer body 4 is released. As a result, the pressure in the accommodation space S is lowered and the valve body 43B closes the communication port 23, so that outside air can be prevented from entering the accommodation space S. Further, since the outer layer body 4 tends to return to its original shape by its own restoring force, the inner layer body 3 and the outer layer body 4 are in a negative pressure state, and thereby, the outer space K2 from the outer air introduction hole 16. The air is introduced from the through hole 4c through the groove 27 and the air passage T, and the outer layer body 4 is restored while the inner layer body 3 is deformed and reduced in volume.

弁体４３Ｂが連通口２３を閉鎖すると、注出筒１４及び内側空間Ｋ１内には内容液が残留したままになっているものの、移動弁体４６が弁体４３Ｂの移動と共に内層体３の収容空間Ｓ側に移動する。これにより、筒状壁２２側のスペースが増大することになるため、注出筒１４及び内側空間Ｋ１内に残留した内容液を、筒状壁２２側に移動させることができ（サックバック機能）、液だれを有効に防止することができる。   When the valve body 43B closes the communication port 23, the content liquid remains in the dispensing cylinder 14 and the inner space K1, but the moving valve body 46 accommodates the inner layer body 3 along with the movement of the valve body 43B. Move to the space S side. As a result, the space on the cylindrical wall 22 side increases, so that the content liquid remaining in the dispensing cylinder 14 and the inner space K1 can be moved to the cylindrical wall 22 side (suck back function). , Dripping can be effectively prevented.

すなわち、本実施形態の逆止弁４０Ｂでは、弁体４３Ｂと移動弁体４６とが連結されているため、容器２を傾倒姿勢から起立姿勢に戻さなくとも、外層体４の胴部への押圧を解除し、弁体４３Ｂが閉鎖位置に戻ることにより、移動弁体４６も内層体３側へと移動する。従って、容器２の姿勢変更を行うことなく、液だれを効果的に防止することができる。   That is, in the check valve 40B of the present embodiment, the valve body 43B and the moving valve body 46 are connected, so that the container 2 is pressed against the trunk of the outer layer body 4 without returning from the tilted position to the standing position. Is released and the valve body 43B returns to the closed position, so that the moving valve body 46 also moves to the inner layer body 3 side. Therefore, dripping can be effectively prevented without changing the attitude of the container 2.

また、本実施形態の逆止弁４０Ｂにおいては、弁体４３Ｂと移動弁体４６とを一体成型することができるので、移動弁体４６の飛び出し等の懸念が無く、また部品点数及び組み立て工数を削減することができる。   Further, in the check valve 40B of the present embodiment, the valve body 43B and the moving valve body 46 can be integrally molded, so there is no concern about the movement of the moving valve body 46, and the number of parts and assembly man-hours can be reduced. Can be reduced.

更に、本実施形態の逆止弁４０Ｂにおいては、移動弁体４６が注出筒側にのみ開口し、筒状壁２２の中心軸線と同軸上に配置された筒型形状をなすようにした。この構成により、移動弁体４６が弁体４３Ｂと共に収容空間Ｓ側に移動する際に、移動弁体４６が筒状壁２２内を中心軸に沿って滑らかに移動することができる。これにより、注出筒１４等に残留した内容液をより確実に筒状壁２２側に移動させることができる。   Further, in the check valve 40B of the present embodiment, the moving valve body 46 is opened only on the side of the dispensing cylinder, and has a cylindrical shape arranged coaxially with the central axis of the cylindrical wall 22. With this configuration, when the moving valve body 46 moves together with the valve body 43B toward the accommodating space S, the moving valve body 46 can smoothly move along the central axis in the cylindrical wall 22. As a result, the content liquid remaining in the dispensing cylinder 14 and the like can be more reliably moved to the cylindrical wall 22 side.

本発明に従う二重容器用キャップは、上述した実施形態に限定されるものではなく、特許請求の範囲に従う範囲で種々の変更が可能である。例えば、移動弁体の断面形状は、筒状壁の断面形状に合わせて適宜変更することができる。また、外層体及び内層体は、積層構造のパリソンをブロー成形することによって形成されるものに限られず、外層体及び内層体を個別に形成し、その後、内層体を外層体内に装着するようにしたものでもよい。   The cap for a double container according to the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope according to the claims. For example, the cross-sectional shape of the moving valve body can be appropriately changed according to the cross-sectional shape of the cylindrical wall. Further, the outer layer body and the inner layer body are not limited to those formed by blow molding a parison having a laminated structure, and the outer layer body and the inner layer body are individually formed, and then the inner layer body is mounted in the outer layer body. You may have done.

本発明によれば、逆止弁の強度及びシール性を向上させた、新規の二重容器用キャップを提供することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the novel cap for double containers which improved the intensity | strength and sealing performance of the non-return valve.

１Ａ，１Ｂ 二重容器用キャップ（キャップ）
２ 二重容器（容器）
３ 内層体
３ａ 上部開口
４ 外層体
４ａ 口部周壁
４ｂ 雄ねじ部
４ｃ 貫通孔
４ｄ 溝部
１０ キャップ本体
１１ 外周壁
１２ 雌ねじ部
１３ 頂壁
１４ 注出筒
１５ 上部嵌合壁
１６ 外気導入孔
１８ 突起
２０ 中栓
２１ 隔壁
２２ 筒状壁
２２ａ 貫通孔（注出筒側開口）
２２ｂ 円筒部
２２ｃ 傾斜部
２２ｄ 貫通孔（内層体側開口）
２２ｅ 底部
２３ 連通口
２４ 段部
２５ 嵌合壁
２６ シール壁
２７ 溝
３０ 移動弁体
４０Ａ、４０Ｂ 逆止弁
４１ 環状壁
４３Ａ，４３Ｂ 弁体
４４ 弁体開口
４５ 連結部
４６ 移動弁体
４７ スリット
４８Ａ，４８Ｂ 内周側端部
４９Ａ，４９Ｂ 外周側端部
５０ 蓋体
５１ ヒンジ
５２ 上壁
５３ 蓋体周壁
５４ シール部
Ｋ１ 内側空間
Ｋ２ 外側空間
Ｍ 二重容器の中心軸
Ｓ 収容空間
Ｔ 通気路 1A, 1B Double container cap (cap)
2 Double container (container)
DESCRIPTION OF SYMBOLS 3 Inner layer body 3a Upper opening 4 Outer layer body 4a Opening part peripheral wall 4b Male thread part 4c Through-hole 4d Groove part 10 Cap body 11 Outer peripheral wall 12 Female thread part 13 Top wall 14 Outlet cylinder 15 Upper fitting wall 16 Outside air introduction hole 18 Protrusion Plug 21 Bulkhead 22 Cylindrical wall 22a Through-hole (pipe-out side opening)
22b Cylindrical portion 22c Inclined portion 22d Through hole (inner layer side opening)
22e bottom 23 communication port 24 step 25 fitting wall 26 seal wall 27 groove 30 moving valve element 40A, 40B check valve 41 annular wall 43A, 43B valve element 44 valve element opening 45 connecting part 46 moving valve element 47 slit 48A, 48B Inner peripheral end 49A, 49B Outer peripheral end 50 Lid 51 Hinge 52 Upper wall 53 Lid peripheral wall 54 Sealing part K1 Inner space K2 Outer space M Center axis of double container S Storage space T Air passage

Claims (4)

減容変形可能な内層体からの内容液を注出する注出筒を有し、該内層体を内側に配置した外層体の口部に装着されるキャップ本体と、
該注出筒と該内層体との間に位置する隔壁を有し、該隔壁に、内容液を通す連通口と、
一端に注出筒側開口を有し他端に内層体側開口を有する筒状壁とを備える中栓と、
該連通口を閉鎖する一方、該内層体内の圧力上昇によって該連通口を開放して内容液を流す逆止弁と、
該筒状壁内に移動可能に設けられ、該注出筒側から該内層体側への移動によって該注出筒内に残存する内容液を該筒状壁に向けて引き戻す移動弁体とを備える二重容器用キャップにおいて、
前記逆止弁は、前記連通口及び前記注出筒側開口を取り囲む環状壁と、薄肉の環状をなし、外周側端部を該環状壁の内面に連結させると共に、内周側端部を前記隔壁に着座させて該連通口を閉鎖する弁体とを有する、二重容器用キャップ。 A cap body that has a dispensing cylinder for pouring the content liquid from the volume-deformable inner layer body, and is attached to the mouth of the outer layer body with the inner layer body disposed inside;
A partition located between the pouring tube and the inner layer body, and a communication port through which the content liquid passes,
An inner plug provided with a cylindrical wall having a dispensing cylinder side opening at one end and an inner layer body side opening at the other end;
A check valve that closes the communication port while opening the communication port due to an increase in pressure in the inner layer to flow the content liquid;
A movable valve body that is movably provided in the cylindrical wall and draws back the content liquid remaining in the extraction cylinder toward the cylindrical wall by movement from the extraction cylinder side to the inner layer body side. In the double container cap,
The check valve has an annular wall that surrounds the communication port and the extraction cylinder side opening, and a thin annular shape. The outer peripheral end is connected to the inner surface of the annular wall, and the inner peripheral end is A double container cap comprising: a valve body that is seated on a partition wall and closes the communication port. 前記弁体は、注出筒側に凸となる湾曲形状である、請求項１に記載の二重容器用キャップ。   The said valve body is a cap for double containers of Claim 1 which is the curved shape which becomes convex at the extraction | pouring cylinder side. 前記内周側端部と前記移動弁体とを、周方向に間隔をあけて配置される連結部で接続してなる、請求項１又は２に記載の二重容器用キャップ。   The double container cap according to claim 1 or 2, wherein the inner peripheral side end and the moving valve body are connected by a connecting portion arranged at intervals in the circumferential direction. 前記移動弁体は、前記注出筒側にのみ開口し、前記筒状壁の中心軸線と同軸上に配置された筒型形状をなす、請求項３に記載の二重容器用キャップ。   4. The double container cap according to claim 3, wherein the moving valve body is opened only on the side of the dispensing cylinder and has a cylindrical shape arranged coaxially with a central axis of the cylindrical wall.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017197224A (en) * 2016-04-27 2017-11-02 株式会社吉野工業所 Discharge cap
CN109311569A (en) * 2016-06-30 2019-02-05 株式会社吉野工业所 Container is discharged
JP2019099197A (en) * 2017-11-30 2019-06-24 株式会社吉野工業所 Discharge container
WO2020132247A1 (en) * 2018-12-21 2020-06-25 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
WO2021055026A1 (en) * 2019-09-20 2021-03-25 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
US11292642B2 (en) 2018-12-21 2022-04-05 H. J. Heinz Company Brands Llc Container, closure, and methods for manufacture
USD949690S1 (en) 2018-12-21 2022-04-26 H.J. Heinz Company Brands Llc Closure for a container
US11891218B2 (en) 2019-09-20 2024-02-06 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164154U (en) * 1985-03-29 1986-10-11
JPS6323253U (en) * 1986-07-31 1988-02-16
JP2013151316A (en) * 2011-12-26 2013-08-08 Yoshino Kogyosho Co Ltd Squeezable container
JP2013244995A (en) * 2012-05-25 2013-12-09 Yoshino Kogyosho Co Ltd Discharge container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164154U (en) * 1985-03-29 1986-10-11
JPS6323253U (en) * 1986-07-31 1988-02-16
JP2013151316A (en) * 2011-12-26 2013-08-08 Yoshino Kogyosho Co Ltd Squeezable container
JP2013244995A (en) * 2012-05-25 2013-12-09 Yoshino Kogyosho Co Ltd Discharge container

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017197224A (en) * 2016-04-27 2017-11-02 株式会社吉野工業所 Discharge cap
US10717567B2 (en) 2016-06-30 2020-07-21 Yoshino Kogyosho Co., Ltd. Discharge container
CN109311569A (en) * 2016-06-30 2019-02-05 株式会社吉野工业所 Container is discharged
EP3480130A4 (en) * 2016-06-30 2020-03-18 Yoshino Kogyosho Co., Ltd. Discharge container
JP2019099197A (en) * 2017-11-30 2019-06-24 株式会社吉野工業所 Discharge container
USD949690S1 (en) 2018-12-21 2022-04-26 H.J. Heinz Company Brands Llc Closure for a container
US11465815B2 (en) 2018-12-21 2022-10-11 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
CN113439061A (en) * 2018-12-21 2021-09-24 H.J.海因茨品牌有限责任公司 Container, closure and method of manufacture
JP2022514641A (en) * 2018-12-21 2022-02-14 エッチ ジェー ハインツ カンパニー ブランズ エルエルシー Containers, closures, and manufacturing methods
US11292642B2 (en) 2018-12-21 2022-04-05 H. J. Heinz Company Brands Llc Container, closure, and methods for manufacture
WO2020132247A1 (en) * 2018-12-21 2020-06-25 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
US11401083B2 (en) 2018-12-21 2022-08-02 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
USD1000954S1 (en) 2018-12-21 2023-10-10 H.J. Heinz Company Brands Llc Closure for a container
US11472610B2 (en) 2018-12-21 2022-10-18 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
EP4074620A1 (en) * 2018-12-21 2022-10-19 H.J. Heinz Company Brands LLC Closure cap and method of manufacturing
US11623798B2 (en) 2018-12-21 2023-04-11 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
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