JP6033355B2

JP6033355B2 - Squeeze container cap

Info

Publication number: JP6033355B2
Application number: JP2015082336A
Authority: JP
Inventors: 後藤　寛; 寛後藤; 始旦森谷; 稲葉　真一; 真一稲葉; 藤田　実智昭; 実智昭藤田
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2010-02-19
Filing date: 2015-04-14
Publication date: 2016-11-30
Anticipated expiration: 2030-12-14
Also published as: JP2015147622A; JP2011189987A; JP5733969B2

Description

本発明は、スクイズ容器用キャップに関し、特に、スクイズ変形可能なプラスチックからなる容器本体の口首部に取り付けて用いられるスクイズ容器用キャップに関する。 The present invention relates to a squeeze container cap, and more particularly to a squeeze container cap that is used by being attached to a mouth portion of a container body made of plastic that can be squeezed.

スクイズ容器は、容器本体の胴部を手で把持してスクイズ（圧搾）することで容器本体を変形させて、内容液を吐出口から吐出箇所に向けて所定量吐出させるものである。スクイズ容器は、通常、内容液の補充や交換ができるように、スクイズ変形可能なプラスチックからなる容器本体の口首部に、吐出口を有するキャップを着脱可能に取り付けて用いる場合が多い。このようなスクイズ容器では、例えば吐出口を覆う外蓋を取り外した後に、把持したスクイズ容器を傾倒又は倒立させて吐出口を吐出箇所に向けた状態で、容器本体をスクイズすることにより、内容液を所定量吐出させる。 The squeeze container is a container that deforms the container body by squeezing (squeezing) the body of the container body by hand, and discharges a predetermined amount of liquid from the discharge port toward the discharge location. A squeeze container is usually used with a cap having a discharge port detachably attached to the neck of a container body made of plastic that can be squeezed so that the content liquid can be replenished or replaced. In such a squeeze container, for example, after removing the outer lid that covers the discharge port, the content liquid is obtained by squeezing the container body in a state in which the gripped squeeze container is tilted or inverted and the discharge port faces the discharge point. Is discharged by a predetermined amount.

また、スクイズ容器は、スクイズした状態を開放すると、容器本体の変形が元に戻って内部が負圧になる、いわゆるバックサクション効果によって液が吸引されることにより、吐出口周囲の内容液を容器本体の内部に引き戻すことができる。 In addition, when the squeezed container is released from the squeezed state, the deformation of the container body is restored and the inside becomes negative pressure. Can be pulled back into the body.

一方、スクイズ容器では、容器本体の胴部を把持して傾倒又は倒立させると、容器本体の内圧や内容液の自重によって、容器本体をスクイズしなくても、内容液が吐出口から漏出したり液垂れしたりする場合がある。このような予期しない内容液の漏出や液垂れは、スクイズ容器の外観の汚れや使用時の手の汚れ等の要因になることから、これらを防止するための技術が種々開発されている（例えば、特許文献１、特許文献２、特許文献３参照）。 On the other hand, in the case of a squeeze container, if the body part of the container body is gripped and tilted or inverted, the content liquid may leak from the discharge port due to the internal pressure of the container body or the weight of the content liquid without squeezing the container body. There may be dripping. Such unexpected leakage or dripping of the liquid content causes the appearance of the squeeze container and the hand during use, and various techniques have been developed to prevent them (for example, Patent Document 1, Patent Document 2, and Patent Document 3).

特開２００６−２１９１８１号公報JP 2006-219181 A 特開２００３−２２６３７７号公報JP 2003-226377 A 特開２００５−８２２３３号公報JP 2005-82233 A

特許文献１では、キャップの吐出口に連通するディップチューブをＵ字状に湾曲させて液流入口を吐出口の近傍に配置することにより、容器本体をスクイズしない限り内容液が吐出口から吐出されないようにして、不要な液垂れが生じるのを効果的に回避できるようになっている。しかしながら、Ｕ字状に湾曲したチューブ構造はキャップの着脱時の取り扱いが不便になると共に、ディップチューブ内部に内容液が残った状態でスクイズすると、エア噛みして、液が周囲に飛び散る場合がある。特許文献２では、注出口部の下部側に有底筒体状のトラップルームを固設し、該有底筒体の周壁部と底部に連通穴を設けることにより、トラップルーム内に残留した液を容器内に戻し、液垂れが生じることを回避している。しかしながら、トラップルーム内にある程度液が溜まらないと液が注出できないため、特に初回の吐出量が少なくなったり、吐出量を調整できない等の不具合が生じてしまう。さらに、引用文献３では、内容液が水やエタノール等と同程度の粘性の低い液体の場合、容器本体を押圧した際の圧力変化に敏感に反応して勢い良く排出してしまうことを防止するために、ノズル体の円筒形嵌着部の内周面か、又はこの円筒形嵌着部に嵌着される内栓の外周面に、曲折して延設する細溝を形成している。内容液は、この細溝による流路を介して、内栓の上面とノズル体の天面板の下面との間に保持された液溜り空間に送り込まれ、ノズル体のノズル部を介して排出させるようになっている。このノズル体は、ノズル体の円筒形嵌着部に内栓を嵌着するだけで、曲折して延設する細溝による流路を簡易に形成でき、また相当の大きさの液溜り空間から液体を排出するようになっていることから、定圧量点眼容器等に設けた場合に有効である。しかしながら、引用文献３のノズル体も、ノズル部の流出開口部と内栓との間に液溜り空間が介在することから、バックサクションによる液の引きが不十分となったり、液溜り空間に内容液が残った状態でスクイズするとエア噛みを生じたりするといった不具合が生じることになる。 In Patent Document 1, the dip tube communicating with the discharge port of the cap is curved in a U shape, and the liquid inlet is disposed in the vicinity of the discharge port, so that the content liquid is not discharged from the discharge port unless the container body is squeezed. In this way, unnecessary liquid dripping can be effectively avoided. However, the U-shaped curved tube structure is inconvenient to handle when attaching and detaching the cap, and when squeezed with the content liquid remaining inside the dip tube, the air may bite and the liquid may scatter around . In Patent Document 2, a bottomed cylindrical trap room is fixed on the lower side of the spout part, and a communication hole is provided in the peripheral wall and bottom of the bottomed cylinder, so that the liquid remaining in the trap room Is returned to the container to prevent dripping. However, since the liquid cannot be poured out unless the liquid is accumulated in the trap room to some extent, problems such as a decrease in the initial discharge amount and inability to adjust the discharge amount occur. Furthermore, in the cited document 3, when the content liquid is a liquid having a viscosity as low as that of water or ethanol, it is prevented that it is discharged sensitively in response to a pressure change when the container body is pressed. For this purpose, a narrow groove extending in a bent manner is formed on the inner peripheral surface of the cylindrical fitting portion of the nozzle body or on the outer peripheral surface of the inner plug fitted to the cylindrical fitting portion. The content liquid is fed into the liquid storage space held between the upper surface of the inner plug and the lower surface of the top plate of the nozzle body through the flow path formed by the narrow groove, and is discharged through the nozzle portion of the nozzle body. It is like that. This nozzle body can easily form a flow path by a narrow groove that bends and extends simply by fitting an inner plug to the cylindrical fitting portion of the nozzle body, and from a liquid pool space of a considerable size. Since the liquid is discharged, it is effective when it is provided in a constant pressure amount eye drop container or the like. However, the nozzle body of the cited document 3 also has a liquid pool space between the outflow opening of the nozzle section and the inner plug, so that the liquid is not sufficiently drawn by the back suction or the content in the liquid pool space. When squeezing with the liquid remaining, there is a problem that air is bitten.

一方、本願発明者は、上述のようなスクイズ容器用のキャップに特有の技術的課題を鑑みて、特願２００９−２８２６１４において、簡易な構成によって、内容物の粘度によらず、スクイズする前の内容液の漏出や液垂れを効果的に回避できると共に、吐出量の安定化と良好な液切れを得ることのできるスクイズ容器用キャップを開発し、開示しているが、内容液を吐出する際の吐出性をさらに向上させるための、新たな技術の開発が望まれている。 On the other hand, in view of the technical problem peculiar to the cap for a squeeze container as described above, the inventor of the present application, in Japanese Patent Application No. 2009-282614, has a simple configuration before squeezing regardless of the viscosity of the contents. We have developed and disclosed a squeeze container cap that can effectively prevent leakage and dripping of the content liquid, as well as stabilizing the discharge amount and obtaining good liquid drainage. Development of a new technique for further improving the discharge performance of the ink is desired.

本発明は、簡易な構成によって、スクイズする前の内容液の漏出や液垂れを効果的に回避できると共に、内容液を吐出する際の吐出性をさらに向上させることのできるスクイズ容器用キャップを提供することを目的とする。 The present invention provides a squeeze container cap capable of effectively avoiding leakage and dripping of the content liquid before squeezing with a simple configuration, and further improving the discharge property when discharging the content liquid. The purpose is to do.

本発明は、スクイズ変形可能なプラスチックからなる容器本体の口首部に取り付けて用いられ、該容器本体の胴部のスクイズ変形により先端の吐出口から内容液を吐出させるスクイズ容器用キャップであって、当該キャップの前記吐出口への流出開口が形成された天面部の下面の下方に近接させて、又は天面部の下面に密着させて、装着部材が重ねて取り付けられることで、前記天面部の下面に沿って延設する延長流路が形成されており、該延長流路は、前記天面部の流出開口と連通すると共に、前記装着部材に形成された流入口を介して前記容器本体の口首部と連通しており、前記延長流路は、絞り部を介して連続する、前記流出開口側の端部分の液吐出流路と、該液吐出流路よりも前記流入口側の部分の液保留流路とを備えており、該液保留流路の容積は、前記液吐出流路の容積よりも大きくなっており、前記絞り部を挟んだ前記液吐出流路側の断面積は、前記液保留流路側の断面積よりも小さくなっているスクイズ容器用キャップを提供することにより、上記目的を達成したものである。 The present invention is a squeeze container cap that is used by being attached to a mouth part of a container body made of squeeze-deformable plastic, and discharges the content liquid from the discharge port at the tip by squeeze deformation of the body part of the container body, The lower surface of the top surface portion is attached by attaching the mounting member so as to be close to the lower surface of the top surface portion in which the outflow opening to the discharge port of the cap is formed or in close contact with the lower surface of the top surface portion. An extended flow path extending along the throat is formed, the extended flow path communicates with the outflow opening of the top surface portion, and the mouth portion of the container body through the inflow port formed in the mounting member The extended flow path is continuous through the throttle portion, the liquid discharge flow path at the end portion on the outflow opening side, and the liquid retention at the portion closer to the inlet side than the liquid discharge flow path A liquid channel, and the liquid The volume of the distilling flow path is larger than the volume of the liquid discharge flow path, and the cross-sectional area on the liquid discharge flow path side across the throttle portion is smaller than the cross-sectional area on the liquid retention flow path side. The above object is achieved by providing a cap for a squeeze container.

本発明のスクイズ容器用キャップによれば、簡易な構成によって、スクイズする前の内容液の漏出や液垂れを効果的に回避できると共に、内容液を吐出する際の吐出性をさらに向上させることができる。 According to the cap for a squeeze container of the present invention, it is possible to effectively avoid leakage and dripping of the content liquid before squeezing with a simple configuration, and to further improve the discharge performance when discharging the content liquid. it can.

本発明の好ましい第１実施形態に係るスクイズ容器用キャップを取り付けたスクイズ容器の断面図である。It is sectional drawing of the squeeze container which attached the cap for squeeze containers which concerns on preferable 1st Embodiment of this invention. 本発明の好ましい第１実施形態に係るスクイズ容器用キャップの要部を説明する、装着部材及びこれと密着する部分の天面部のみを抜き出して、手前側半分を切り欠いた状態で示す斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a main part of a squeeze container cap according to a first preferred embodiment of the present invention, in which only a mounting member and a top surface portion of a portion in close contact therewith are extracted and a front half is cut away. is there. 本発明の好ましい第１実施形態に係るスクイズ容器用キャップの要部を説明する、装着部材及びこれと密着する部分の天面部のみを、装着部材を重ね合わせる前の状態で示す分解斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view for explaining a main part of a squeeze container cap according to a first preferred embodiment of the present invention, showing only a mounting member and a top surface portion of a portion in close contact with the mounting member in a state before the mounting members are overlapped. . 本発明の好ましい第２実施形態に係るスクイズ容器用キャップの断面図である。It is sectional drawing of the cap for squeeze containers which concerns on preferable 2nd Embodiment of this invention. 本発明の好ましい第２実施形態に係るスクイズ容器用キャップを構成する装着部材の、（ａ）は斜視図、（ｂ）は上面図である。(A) is a perspective view of the mounting member which comprises the cap for squeeze containers which concerns on preferable 2nd Embodiment of this invention, (b) is a top view. 他の形態に係るスクイズ容器用キャップを例示する断面図である。It is sectional drawing which illustrates the cap for squeeze containers which concerns on another form. 絞り部の他の形態の一例を説明する略示断面図である。It is a schematic sectional drawing explaining an example of the other form of an aperture part.

以下本発明を、その好ましい実施形態に基づき図面を参照しながら説明する。図１は、本発明の好ましい第１実施形態に係るスクイズ容器用キャップ１０を取り付けたスクイズ容器１１である。図１に示すように、スクイズ容器用キャップ１０は、スクイズ変形可能なプラスチックからなる容器本体１２の口首部１２ａに取り付けて用いられる。スクイズ容器用キャップ１０は、先端に吐出口１３ａが開口形成されたノズル部１９を有しており、使用者が容器本体１２の胴部１２ｂを把持してスクイズ容器１１を傾倒又は倒立させることでノズル部１９の先端の吐出口１３ａを吐出箇所に向けた後に、容器本体１２の胴部１２ｂをスクイズ（圧搾）し容器本体１２を変形させることにより、内容液を胴部１２ｂから口首部１２ａを介してスクイズ容器用キャップ１０のノズル部１９に送り出して、吐出口１３ａから所定量吐出させることができるようになっている。さらに、スクイズ容器用キャップ１０は、ノズル部１９の吐出口１３ａを吐出箇所に向けた後、容器本体１２の胴部１２ｂをスクイズするまでの間に、内容液が容器本体１２の内圧や内容液の自重によって吐出口１３ａから漏出したり液垂れしたりするのを回避できる機能を備えると共に、胴部１２ｂをスクイズした際には、内容液をスムーズに吐出させることができる機能を備える。 The present invention will be described below based on preferred embodiments with reference to the drawings. FIG. 1 shows a squeeze container 11 with a squeeze container cap 10 according to a preferred first embodiment of the present invention. As shown in FIG. 1, the squeeze container cap 10 is used by being attached to a mouth part 12 a of a container body 12 made of plastic that can be squeezed. The squeeze container cap 10 has a nozzle portion 19 having a discharge port 13a formed at the tip, and the user holds the body portion 12b of the container body 12 to tilt or invert the squeeze container 11. After the discharge port 13a at the tip of the nozzle portion 19 is directed to the discharge location, the body portion 12b of the container body 12 is squeezed (squeezed) to deform the container body 12, whereby the liquid content is transferred from the body portion 12b to the neck portion 12a. The squeeze container cap 10 is fed to the nozzle portion 19 through the discharge port 13a so that a predetermined amount can be discharged. Further, the squeeze container cap 10 is configured so that the content liquid is not subjected to the internal pressure of the container body 12 or the content liquid until the body part 12b of the container body 12 is squeezed after the discharge port 13a of the nozzle part 19 is directed to the discharge location. The function of avoiding leakage or dripping from the discharge port 13a due to its own weight and the function of smoothly discharging the content liquid when the body portion 12b is squeezed.

すなわち、本実施形態に係るスクイズ容器用キャップ１０は、スクイズ変形可能なプラスチックからなる容器本体１２の口首部１２ａに取り付けて用いられ、容器本体１２の胴部１２ｂのスクイズ変形により先端の吐出口１３ａから内容液を吐出させるキャップである。スクイズ容器用キャップ１０には、当該キャップ１０の吐出口１３ａへの流出開口１５が形成された天面部１０ａの下面に密着させて、装着部材１７が重ねて取り付けられることで、天面部１０ａの下面に沿って延設する延長流路１４が形成されている。この延長流路１４は、図２及び図３にも示すように、天面部１０ａの流出開口１５と連通すると共に、装着部材１７に形成された流入口１８を介して容器本体１２の口首部１２ａと連通している。延長流路１４は、図３に示すように、絞り部としての段差壁部２２を介して連続する、流出開口１５側の端部分の液吐出流路１４ａと、この液吐出流路１４ａよりも流入口１８側の部分の液保留流路１４ｂとを備えており、この液保留流路１４ｂの容積は、液吐出流路１４ａの容積よりも大きくなっている。また、絞り部（段差壁部）２２を挟んだ液吐出流路１４側の断面積は、液保留流路１４ｂ側の断面積よりも小さくなっている。 That is, the squeeze container cap 10 according to the present embodiment is used by being attached to the mouth part 12a of the container body 12 made of squeeze-deformable plastic, and the discharge port 13a at the tip is formed by squeeze deformation of the body part 12b of the container body 12. It is a cap which discharges a content liquid from. The squeeze container cap 10 is attached in close contact with the lower surface of the top surface portion 10a in which the outflow opening 15 to the discharge port 13a of the cap 10 is formed, and the mounting member 17 is attached in an overlapping manner, whereby the lower surface of the top surface portion 10a. An extension flow path 14 extending along the line is formed. As shown in FIGS. 2 and 3, the extension flow path 14 communicates with the outflow opening 15 of the top surface portion 10 a, and the mouth portion 12 a of the container body 12 through the inflow port 18 formed in the mounting member 17. Communicated with. As shown in FIG. 3, the extended flow path 14 includes a liquid discharge flow path 14 a at the end portion on the outflow opening 15 side that is continuous through the stepped wall portion 22 as a throttle section, and more than the liquid discharge flow path 14 a. The liquid holding channel 14b is provided on the inlet 18 side, and the volume of the liquid holding channel 14b is larger than the volume of the liquid discharge channel 14a. In addition, the cross-sectional area on the liquid discharge channel 14 side across the throttle portion (step wall portion) 22 is smaller than the cross-sectional area on the liquid retention channel 14b side.

また、本第１実施形態では、図３に示すように、流出開口１５と接続する天面凹溝２０が天面部１０ａの下面に形成されていると共に、流入口１８と接続する装着凹溝２１が装着部材１７の上面に天面凹溝２０と合致する形状に形成されている。天面凹溝２０と装着凹溝２１とが重なり合うように装着部材１７が取り付けられていることにより、重なり合った天面凹溝２０及び装着凹溝２１によって、流入口１８から流出開口１５に至る延長流路１４が形成されるようになっている。また、本第１実施形態では、図３に示すように、流出開口１５と接続する天面凹溝２０が天面部１０ａの下面に形成されていると共に、流入口１８と接続する装着凹溝２１が装着部材１７の上面に天面凹溝２０と合致する形状に形成されている。天面凹溝２０と装着凹溝２１とが重なり合うように装着部材１７が取り付けられていることにより、重なり合った天面凹溝２０及び装着凹溝２１によって、流入口１８から流出開口１５に至る延長流路１４が形成されるようになっている。 In the first embodiment, as shown in FIG. 3, the top groove 20 connected to the outflow opening 15 is formed on the bottom surface of the top surface portion 10 a and the mounting groove 21 connected to the inlet 18. Is formed on the upper surface of the mounting member 17 so as to match the top groove 20. By attaching the mounting member 17 so that the top groove 20 and the mounting groove 21 overlap, the extension from the inlet 18 to the outflow opening 15 is achieved by the overlapping top surface groove 20 and mounting groove 21. A flow path 14 is formed. In the first embodiment, as shown in FIG. 3, the top groove 20 connected to the outflow opening 15 is formed on the bottom surface of the top surface portion 10 a and the mounting groove 21 connected to the inlet 18. Is formed on the upper surface of the mounting member 17 so as to match the top groove 20. By attaching the mounting member 17 so that the top groove 20 and the mounting groove 21 overlap, the extension from the inlet 18 to the outflow opening 15 is achieved by the overlapping top surface groove 20 and mounting groove 21. A flow path 14 is formed.

さらに、本第１実施形態では、延長流路１４は、天面部１０ａの下面に沿って渦巻状に延設する渦巻流路となっており、液吐出流路１４ａと液保留流路１４ｂとの間の絞り部は、段差壁部２２となっている。 Furthermore, in the first embodiment, the extension channel 14 is a spiral channel extending in a spiral shape along the lower surface of the top surface portion 10a, and the liquid discharge channel 14a and the liquid holding channel 14b The narrowed portion is a step wall portion 22.

なお、容器本体１２に収容可能な内容液としては、計量して使用する液状組成物が含まれ、例えば衣料用液体洗浄剤、柔軟剤、漂白剤、液体入浴剤等が挙げられる。また、食油、調味料等の液状の食品であっても良い。 The content liquid that can be accommodated in the container body 12 includes a liquid composition that is measured and used, and examples thereof include a liquid cleaning agent for clothing, a softening agent, a bleaching agent, and a liquid bath agent. Moreover, liquid foodstuffs, such as cooking oil and a seasoning, may be sufficient.

本第１実施形態では、容器本体１２は、スクイズ変形可能な可撓性を有するボトル形状のプラスチック容器であって、図１に示すように、内容液が収容される胴部１２ｂと、胴部１２ｂの上端部から上方に突出して形成された、上端が開口面となった口首部１２ａとからなる。口首部１２ａには、スクイズ容器用キャップ１０が、公知の各種の螺合手段や嵌合手段を介して着脱可能に装着される。また、容器本体１２は、公知の各種の合成樹脂を用いて、例えばブロー成形によって容易に形成することができる。 In the first embodiment, the container body 12 is a flexible bottle-shaped plastic container that can be deformed by squeeze, and as shown in FIG. It consists of a mouth part 12a formed so as to protrude upward from the upper end part of 12b and having an upper end serving as an opening surface. A squeeze container cap 10 is detachably attached to the mouth portion 12a through various known screwing means and fitting means. Moreover, the container main body 12 can be easily formed using, for example, various known synthetic resins by, for example, blow molding.

スクイズ容器用キャップ１０は、例えばプラスチック製の成形品であって、円形の天面部１０ａと、天面部１０ａの周縁部分から一体として下方に延設する、円環スカート形状の周壁部１０ｂとを含んで構成される。天面部１０ａには、これの中央部分の流出開口１５の外周部分から上方に突出して、ノズル部１９が設けられている。ノズル部１９は、天面部１０ａから立設する筒状中間部１９ｂと、筒状中間部１９ｂの先端部分に固着されたノズル本体１９ａとからなる。またノズル部１９の筒状中間部１９ｂ及びノズル本体１９ａを上下方向に貫通して、流出開口１５から吐出口１３ａに至る吐出流路１３が形成されている。ノズル部１９には、ノズル本体１９ａの先端の吐出口１３ａを開閉可能に覆う蓋体２３が接合されており、スクイズ容器１１の保管時には吐出口１３ａを密封しておくことができる。 The squeeze container cap 10 is, for example, a plastic molded product, and includes a circular top surface portion 10a and an annular skirt-shaped peripheral wall portion 10b extending downward integrally from the peripheral portion of the top surface portion 10a. Consists of. A nozzle portion 19 is provided on the top surface portion 10a so as to protrude upward from the outer peripheral portion of the outflow opening 15 at the center portion thereof. The nozzle portion 19 includes a cylindrical intermediate portion 19b standing from the top surface portion 10a, and a nozzle body 19a fixed to the tip portion of the cylindrical intermediate portion 19b. Further, a discharge flow path 13 is formed that penetrates the cylindrical intermediate portion 19b of the nozzle portion 19 and the nozzle body 19a in the vertical direction and extends from the outflow opening 15 to the discharge port 13a. A lid body 23 that covers the discharge port 13a at the tip of the nozzle main body 19a so as to be openable and closable is joined to the nozzle unit 19, and the discharge port 13a can be sealed when the squeeze container 11 is stored.

また、円環スカート形状の周壁部１０ｂには、例えば略下半部分の内側面に雌ネジが設けられており、この雌ネジが、例えば容器本体１２の口首部１２ａの外周面に設けられた雄ネジに締着されることにより、キャップ１０が着脱可能に口首部１２ａに装着される。さらに、周壁部１０ｂの内側には、天面部１０ａの下面から下方に向かって突出する環状装着突起１６が設けられている。この環状装着突起１６の内側に装着部材１７を上方に向けて嵌め込むようにして取り付け、例えば装着部材１７の下面の周縁角部を環状装着突起１６の下端内側面に設けた係止リブ１６ａに係止することで、装着部材１７が、その上面を天面部１０ａの下面に重ねて密着させた状態で、キャップ１０の内部に固着されることになる。 Further, the annular skirt-shaped peripheral wall portion 10b is provided with, for example, a female screw on the inner surface of the substantially lower half portion, and this female screw is provided on the outer peripheral surface of the mouth portion 12a of the container body 12, for example. By being fastened to the male screw, the cap 10 is detachably attached to the mouth portion 12a. Furthermore, an annular mounting protrusion 16 that protrudes downward from the lower surface of the top surface portion 10a is provided inside the peripheral wall portion 10b. The mounting member 17 is attached to the inner side of the annular mounting protrusion 16 so as to be fitted upward. For example, the peripheral corner of the lower surface of the mounting member 17 is locked to a locking rib 16 a provided on the inner surface of the lower end of the annular mounting protrusion 16. As a result, the mounting member 17 is fixed inside the cap 10 in a state where the upper surface thereof is in close contact with the lower surface of the top surface portion 10a.

さらに、本実施形態では、キャップ１０の天面部１０ａの下面における周囲が環状装着突起１６によって囲まれる部分には、後述するように、装着部材１７の上面に形成された渦巻状の装着凹溝２１の平面形状と合致する平面形状を備える渦巻状の天面凹溝２０が、中央部分において流出開口１５と接続した状態で形成されている（図３参照）。 Further, in the present embodiment, a spiral mounting groove 21 formed on the upper surface of the mounting member 17 is formed in a portion surrounded by the annular mounting protrusion 16 on the lower surface of the top surface portion 10a of the cap 10 as will be described later. A spiral top groove 20 having a planar shape matching the planar shape is formed in a state where it is connected to the outflow opening 15 at the central portion (see FIG. 3).

装着部材１７は、例えばプラスチック製の成形品であって、図３に示すように、円形ドラム形状を有している。また装着部材１７には、これの上面に所定の平面形状及び深さの溝を形成することで、吐出部装着凹溝２１ａと、保留部装着凹溝２１ｂとからなる、渦巻状の装着凹溝２１が設けられている。さらに、保留部装着凹溝２１ｂの始端部である、吐出部装着凹溝２１ａとは反対側の保留部装着凹溝２１ｂの端部には、装着部材１７の底面部を貫通して流入口１８が開口形成されている。 The mounting member 17 is a plastic molded product, for example, and has a circular drum shape as shown in FIG. Further, the mounting member 17 is formed with a groove having a predetermined planar shape and depth on the upper surface thereof, thereby forming a spiral mounting groove having a discharge portion mounting groove 21a and a retaining portion mounting groove 21b. 21 is provided. Further, the inlet 18 penetrates through the bottom surface of the mounting member 17 to the end of the retaining part mounting groove 21b opposite to the discharge part mounting groove 21a, which is the starting end of the retaining part mounting groove 21b. Is formed as an opening.

ここで、本第１実施形態では、装着凹溝２１を構成する保留部装着凹溝２１ｂは、矩形断面形状を有する溝として、装着部材１７の周縁部分に沿って平面形状が略半円を描くように延設して設けられている。また、吐出部装着凹溝２１ａは、装着部材１７の底面と垂直な段差壁部２２を介在させて、保留部装着凹溝２１ｂの底部よりも一段高い位置に設けられる。吐出部装着凹溝２１ａは、半円断面形状を有する溝として、保留部装着凹溝２１ｂの終端部と連続して平面形状が保留部装着凹溝２１ｂよりも曲率半径の小さな円弧を描くように保留部装着凹溝２１ｂの内側に向って延設し、その終端部が装着部材１７の中心部分に配置されるように設けられている。吐出部装着凹溝２１ａ及び保留部装着凹溝２１ｂによって、装着凹溝２１は、全体として渦巻状に延設する渦巻溝を形成することになる。 Here, in the first embodiment, the retaining portion mounting groove 21b constituting the mounting groove 21 is a groove having a rectangular cross-sectional shape, and the planar shape draws a substantially semicircle along the peripheral edge portion of the mounting member 17. So as to extend. Further, the discharge portion mounting groove 21a is provided at a position one step higher than the bottom portion of the retaining portion mounting groove 21b with a step wall portion 22 perpendicular to the bottom surface of the mounting member 17 interposed. The discharge portion mounting groove 21a is a groove having a semicircular cross-sectional shape so that the planar shape of the discharge portion mounting groove 21a is continuous with the terminal portion of the holding portion mounting groove 21b and draws an arc having a smaller radius of curvature than the holding portion mounting groove 21b. It extends toward the inside of the retaining portion mounting concave groove 21 b and is provided so that its terminal portion is disposed at the central portion of the mounting member 17. By the discharge part mounting groove 21a and the holding part mounting groove 21b, the mounting groove 21 forms a spiral groove extending in a spiral shape as a whole.

さらに、本第１実施形態では、保留部装着凹溝２１ｂには、当該保留部装着凹溝２１ｂを左右に仕切って２分割する１枚の装着凹溝仕切壁２５が、保留部装着凹溝２１ｂの底部から垂直に立設すると共に、保留部装着凹溝２１ｂの延設方向に延設して、流入口１８の部分を除いた当該保留部装着凹溝２１ｂの略全域に亘って設けられている。 Furthermore, in this 1st Embodiment, the reservation part installation ditch | groove 21b is divided into two by dividing the reservation part installation ditch | groove 21b into right and left, and the one installation ditch | groove partition wall 25 is the reservation part installation ditch | groove 21b. And extending in the extending direction of the retaining portion mounting groove 21b, and is provided over substantially the entire area of the retaining portion mounting groove 21b excluding the inflow port 18 portion. Yes.

一方、装着部材１７の装着凹溝２１と重なり合って延長流路１４を形成する天面凹溝２０は、図３に示すように、キャップ１０の天面部１０ａの下面に所定の深さの溝を形成することで、装着凹溝２１の渦巻状の平面形状と合致する平面形状を有するように設けられる。すなわち、天面凹溝２０は、キャップ１０の天面部１０ａの下面と装着部材１７の上面との密着面２７（図１、図２参照）を挟んで吐出部装着凹溝２１ａと対向配置される吐出部天面凹溝２０ａと、保留部装着凹溝２１ｂと対向配置される保留部天面凹溝２０ｂとからなる。 On the other hand, the top groove 20 that overlaps with the mounting groove 21 of the mounting member 17 to form the extended flow path 14 has a groove with a predetermined depth on the lower surface of the top surface portion 10a of the cap 10, as shown in FIG. By forming, it is provided so as to have a planar shape that matches the spiral planar shape of the mounting groove 21. That is, the top groove 20 is disposed to face the discharge portion mounting groove 21a with a contact surface 27 (see FIGS. 1 and 2) between the lower surface of the top surface 10a of the cap 10 and the upper surface of the mounting member 17 interposed therebetween. It consists of the discharge part top surface ditch 20a and the reservation part top surface ditch 20b opposingly arranged with the reservation part mounting ditch 21b.

ここで、天面凹溝２０を構成する保留部天面凹溝２０ｂは、保留部装着凹溝２１ｂと同様に、矩形断面形状を有する溝として、キャップ１０の天面部１０ａの環状装着突起１６（図１参照）によって囲まれる部分の周縁部分に沿って、平面形状が略半円を描くように延設して設けられている。また、吐出部天面凹溝２０ａは、キャップ１０の天面部１０ａと垂直な段差壁部２２を介在させて、保留部天面凹溝２０ｂの底部よりも一段低い位置に設けられている。吐出部天面凹溝２０ａは、半円断面形状を有する溝として、保留部天面凹溝２０ｂの終端部と連続して平面形状が保留部天面凹溝２０ｂよりも曲率半径の小さな円弧を描くように保留部天面凹溝２０ｂの内側に向って延設し、その終端部がキャップ１０の天面部１０ａの中央部分に配置されるように設けられている。また吐出部天面凹溝２０ａは、天面部１０ａの中央部分に配置される終端部において、天面部１０ａに設けられた流出開口１５と連通するようになっている。吐出部天面凹溝２０ａ及び保留部天面凹溝２０ｂによって、天面凹溝２０は、装着凹溝２１と同様に、全体として渦巻状に延設する渦巻溝を形成することになる。 Here, the retaining portion top surface recessed groove 20b constituting the top surface recessed groove 20 is a groove having a rectangular cross-sectional shape, similar to the retaining portion mounting recessed groove 21b, and the annular mounting protrusion 16 of the top surface portion 10a of the cap 10 ( A planar shape is provided so as to draw a substantially semicircle along a peripheral portion of a portion surrounded by (see FIG. 1). Moreover, the discharge part top surface ditch | groove 20a is provided in the position one step lower than the bottom part of the preservation | save part top surface ditch | groove 20b via the level | step difference wall part 22 perpendicular | vertical to the top surface part 10a of the cap 10. FIG. The discharge part top surface concave groove 20a is a groove having a semicircular cross-sectional shape, and is a circular arc having a smaller radius of curvature than the reservation part top surface concave groove 20b in a planar shape continuous with the terminal part of the reservation part top surface concave groove 20b. As shown, it extends toward the inside of the retaining portion top surface concave groove 20 b, and the terminal portion is provided so as to be disposed at the central portion of the top surface portion 10 a of the cap 10. Moreover, the discharge part top surface ditch | groove 20a is connected to the outflow opening 15 provided in the top surface part 10a in the terminal part arrange | positioned in the center part of the top surface part 10a. As with the mounting groove 21, the top surface groove 20 forms a spiral groove extending in a spiral shape as a whole by the discharge portion top groove 20 a and the retaining portion top groove 20 b.

さらに、本第１実施形態では、保留部天面凹溝２０ｂには、保留部装着凹溝２１ｂと同様に、当該保留部天面凹溝２０ｂを左右に仕切って２分割する１枚の天面凹溝仕切壁２６が、保留部天面凹溝２０ｂの底部から垂直に立設すると共に、保留部天面凹溝２０ｂの延設方向に延設して、当該保留部天面凹溝２０ｂの略全域に亘って、保留部装着凹溝２１ｂの装着凹溝仕切壁２５と合致する位置に設けられている。 Furthermore, in this 1st Embodiment, the reservation part top surface ditch | groove 20b is divided into two by dividing the reservation part top surface ditch | groove 20b into right and left similarly to the reservation part mounting ditch | groove 21b. The recessed groove partition wall 26 stands vertically from the bottom of the retaining portion top surface recessed groove 20b and extends in the extending direction of the retaining portion top surface recessed groove 20b. It is provided at a position that coincides with the mounting groove partition wall 25 of the retaining portion mounting groove 21b over substantially the entire area.

そして、本第１実施形態では、環状装着突起１６（図１参照）の内側に装着部材１７を嵌め込むようにして取り付けて、天面凹溝２０と装着凹溝２１とを重ね合わせると共に、キャップ１０の天面部１０ａの下面に装着部材１７の上面を密着させることで、液吐出流路１４ａと液保留流路１４ｂとからなる延長流路１４が形成される。すなわち、天面部１０ａの下面と装着部材１７の上面との密着面２７に沿って対向配置された半円断面形状を有する吐出部天面凹溝２０ａと吐出部装着凹溝２１ａとによって、円形断面形状の液吐出流路１４ａが形成されると共に、密着面２７に沿って対向配置された矩形断面形状を有する保留部天面凹溝２０ｂと保留部装着凹溝２１ｂとによって、矩形断面形状の液保留流路１４ｂが形成される。 In the first embodiment, the mounting member 17 is attached inside the annular mounting protrusion 16 (see FIG. 1) so that the top groove 20 and the mounting groove 21 are overlapped, and the cap 10 By extending the upper surface of the mounting member 17 in close contact with the lower surface of the top surface portion 10a, the extended flow path 14 composed of the liquid discharge flow path 14a and the liquid holding flow path 14b is formed. That is, the discharge section top surface groove 20a and the discharge section mounting groove 21a, which have a semicircular cross-sectional shape disposed opposite to each other along the contact surface 27 between the lower surface of the top surface portion 10a and the upper surface of the mounting member 17, have a circular cross section. The liquid discharge channel 14a having a shape is formed, and the liquid having a rectangular cross section is formed by the retaining portion top surface concave groove 20b and the retaining portion mounting concave groove 21b having a rectangular cross section disposed opposite to each other along the contact surface 27. A holding channel 14b is formed.

また、円形断面形状を有する液吐出流路１４ａと矩形断面形状を有する液保留流路１４ｂは、段差壁部２２による絞り部を挟んで連続することで、全体として、キャップ１０の天面部１０ａの下面に沿って渦巻状に延設する延長流路１４を形成する。形成された延長流路１４は、液吐出流路１４ａの終端部において、キャップ１０の天面部１０ａの中央部分に設けられた流出開口１５と連通すると共に、液保留流路１４ｂの始端部において、装着部材１７の周縁部分に設けられられた流入口１８と連通することになる。 Moreover, the liquid discharge flow path 14a having a circular cross-sectional shape and the liquid storage flow path 14b having a rectangular cross-sectional shape are continuous with the throttle portion formed by the step wall portion 22 interposed therebetween, so that the top surface portion 10a of the cap 10 as a whole. An extension flow path 14 extending in a spiral shape along the lower surface is formed. The formed extension channel 14 communicates with the outflow opening 15 provided in the central portion of the top surface portion 10a of the cap 10 at the end portion of the liquid discharge channel 14a, and at the start end of the liquid holding channel 14b. It communicates with the inlet 18 provided in the peripheral portion of the mounting member 17.

さらに、本第１実施形態では、装着部材１７が取り付けられて天面凹溝２０と装着凹溝２１とが重ね合わされた際に、図２に示すように、保留部天面凹溝２０ｂを仕切る天面凹溝仕切壁２６の下端と、これと合致する形状を有する、保留部装着凹溝２１ｂを仕切る装着凹溝仕切壁２５の上端とが互いに密着当接して、これらが上下方向に連続一体化することで、液保留流路１４ｂには、当該液保留流路１４ｂを左右に仕切って２分割する仕切壁２５，２６が、液保留流路１４ｂの延設方向に延設して設けられることになる。 Furthermore, in this 1st Embodiment, when the mounting member 17 is attached and the top surface ditch | groove 20 and the mounting ditch | groove 21 are piled up, as shown in FIG. 2, the reservation part top surface ditch | groove 20b is partitioned off. The lower end of the top groove groove partition wall 26 and the upper end of the mounting groove groove partition wall 25 having a shape matching the top groove groove partition wall 21b are in close contact with each other, and these are continuously integrated in the vertical direction. As a result, partition walls 25 and 26 that divide the liquid storage channel 14b into left and right parts and divide it into two are provided in the liquid storage channel 14b so as to extend in the extending direction of the liquid storage channel 14b. It will be.

そして、本第１実施形態では、段差壁部２２を介して連続する液吐出流路１４ａと液保留流路１４ｂとは、液保留流路１４ｂの容積が、液吐出流路１４ａの容積よりも大きくなっており、且つ段差壁部２２を挟んだ液吐出流路１４側の断面積は、液保留流路１４ｂ側の断面積よりも小さくなっている。 In the first embodiment, the liquid discharge flow path 14a and the liquid reservation flow path 14b that are continuous via the step wall portion 22 are such that the volume of the liquid reservation flow path 14b is larger than the volume of the liquid discharge flow path 14a. The cross-sectional area on the liquid discharge channel 14 side that is larger and sandwiches the step wall portion 22 is smaller than the cross-sectional area on the liquid retention channel 14b side.

ここで、液吐出流路１４ａの容積は、液保留流路１４ｂの容積の１０〜８０％の容積となっていることが好ましく、１０〜６０％の容積となっていることがさらに好ましく、１０〜４０％の容積となっていることが特に好ましい。液吐出流路１４ａと液保留流路１４ｂとの容積比がこの範囲になっていることにより、液保留流路１４ｂによって液ダレを防止しつつ、小容量の液吐出流路１４ａによって短時間で内容液を吐出でき、吐出性が向上するという利点が得られる。なお、液吐出流路１４ａや液保留流路１４ｂの容積は、流出開口１５や流入口１８との接続部分を除いた全体の容積である。 Here, the volume of the liquid discharge channel 14a is preferably 10 to 80%, more preferably 10 to 60% of the volume of the liquid holding channel 14b. A volume of ˜40% is particularly preferred. Since the volume ratio of the liquid discharge flow path 14a and the liquid storage flow path 14b is within this range, the liquid storage flow path 14b prevents liquid sag, and the small volume liquid discharge flow path 14a shortens the time. The content liquid can be discharged, and the advantage that the discharge performance is improved can be obtained. The volumes of the liquid discharge channel 14a and the liquid holding channel 14b are the entire volume excluding the connection portion with the outflow opening 15 and the inflow port 18.

また、段差壁部２２を挟んだ液吐出流路１４側の断面積は、液保留流路１４ｂ側の断面積の１０〜８０％の断面積となっていることが好ましく、１０〜６０％の断面積となっていることがさらに好ましく、１０〜４０％の断面積となっていることが特に好ましい。段差壁部２２を挟んだ液吐出流路１４側の断面積と液保留流路１４ｂ側の断面積との断面積比がこの範囲となっていることにより、容器を傾けたときや吐出後の液ダレを効果的に防止できるという利点が得られる。さらに、液吐出流路１４ａと液保留流路１４ｂとを段差壁部２２による絞り部を挟んで連続させることにより、流動抵抗が生じて液ダレの防止効果が高くなる。 Further, the cross-sectional area on the liquid discharge channel 14 side with the stepped wall portion 22 interposed therebetween is preferably 10 to 80% of the cross-sectional area on the liquid storage channel 14b side, and is 10 to 60%. More preferably, the cross-sectional area is 10 to 40%. The ratio of the cross-sectional area between the cross-sectional area on the liquid discharge channel 14 side and the cross-sectional area on the liquid storage channel 14b side across the step wall 22 is within this range, so that when the container is tilted or after discharge There is an advantage that dripping can be effectively prevented. Furthermore, by causing the liquid discharge flow path 14a and the liquid storage flow path 14b to be continuous with the throttle portion formed by the step wall portion 22 interposed therebetween, flow resistance is generated and the effect of preventing liquid sag is enhanced.

さらに、本第１実施形態では、延長流路１４は、円形断面形状の液吐出流路１４ａと矩形断面形状の液保留流路１４ｂとが段差壁部２２を挟んで連続することで、段差壁部２２よりも流出開口１５側の液吐出流路１４ａは、上下方向のみならず左右方向においても、矩形断面形状の液保留流路１４ｂから絞られた断面形状を有するように形成されている。 Furthermore, in the first embodiment, the extended flow path 14 is configured such that the liquid discharge flow path 14a having a circular cross-sectional shape and the liquid storage flow path 14b having a rectangular cross-sectional shape are continuous with the step wall portion 22 interposed therebetween, whereby a step wall The liquid discharge flow path 14a closer to the outflow opening 15 than the portion 22 is formed to have a cross-sectional shape narrowed down from the liquid storage flow path 14b having a rectangular cross-sectional shape not only in the vertical direction but also in the horizontal direction.

そして、上述の構成を備える本第１実施形態のスクイズ容器用キャップ１０によれば、簡易な構成によって、スクイズする前の内容液の漏出や液垂れを効果的に回避できると共に、吐出量の安定化と良好な液切れを得ること等の内容液を吐出する際の吐出性をさらに向上させることが可能になる。 According to the squeeze container cap 10 of the first embodiment having the above-described configuration, it is possible to effectively avoid leakage and dripping of the content liquid before squeezing with a simple configuration and to stabilize the discharge amount. Therefore, it is possible to further improve the discharge performance when discharging the content liquid, such as obtaining a good liquid breakage.

すなわち、本第１実施形態のスクイズ容器用キャップ１０によれば、当該キャップ１０の天面部１０ａの下面に密着させて装着部材１７を重ねて取り付けるだけの簡易な構成によって、容器本体１２の口首部１２ａからノズル部１９の先端の吐出口１３ａに至る流路を延長するための延長流路１４を、天面凹溝２０と装着凹溝２１とによって、垂直方向には流路を重ねることなくキャップ１０の内部にコンパクトに形成することが可能になる。 That is, according to the squeeze container cap 10 of the first embodiment, the mouth part of the container main body 12 has a simple configuration in which the mounting member 17 is attached in a state of being in close contact with the lower surface of the top surface portion 10a of the cap 10. The extended flow path 14 for extending the flow path from 12a to the discharge port 13a at the tip of the nozzle portion 19 is capped by the top groove 20 and the mounting groove 21 without overlapping the flow paths in the vertical direction. 10 can be formed compactly.

また、液吐出流路１４ａと液保留流路１４ｂとからなる延長流路１４が形成されることにより、内容液を吐出させるためにスクイズ容器１１を傾倒又は倒立させた際に、内容液は、曲折延長された延長流路１４のうち、特に液保留流路１４ｂを通過するのにある程度の時間を要し、また内容液が延長流路１４を通過して吐出されている間は、内容液は延長流路１４の壁面全体に接触していることにより、延長流路１４内における空気置換を回避しつつ、内容液を延長流路１４に長時間保留させることが可能になる。これによって、スクイズ容器１１を傾倒又は倒立させて吐出口１３ａを吐出箇所に向けた後に、容器本体１２の胴部１２ｂをスクイズするまでの間に、内容液が容器本体１２の内圧や自重によって吐出口１３ａから漏出したり液垂れしたりするのを効果的に回避することが可能になると共に、吐出量の安定化を図ることが可能になる。 Moreover, when the extended flow path 14 including the liquid discharge flow path 14a and the liquid holding flow path 14b is formed, when the squeeze container 11 is tilted or inverted in order to discharge the content liquid, Of the extended flow path 14 that is bent and extended, a certain amount of time is required to pass through the liquid holding flow path 14b, and while the content liquid is discharged through the extended flow path 14, the content liquid Since it is in contact with the entire wall surface of the extension channel 14, it is possible to hold the content liquid in the extension channel 14 for a long time while avoiding air replacement in the extension channel 14. As a result, after the squeeze container 11 is tilted or inverted and the discharge port 13a is directed to the discharge location, the content liquid is discharged by the internal pressure or the own weight of the container body 12 until the body 12b of the container body 12 is squeezed. It is possible to effectively avoid leakage from the outlet 13a or dripping, and to stabilize the discharge amount.

さらに、上述のように胴部１２ｂをスクイズする前の内容液の漏出や液垂れを効果的に回避できることから、スクイズした状態を開放した際の内容液のバックサクションによる良好な液切れを得ることが可能になる。このようなバックサクションによる液切れは、渦巻状に曲折延長された延長流路１４の容積を、スクイズ容器１１をスクイズした際の、容器本体１２の変形による胴部１２ｂの容積の減少量よりも小さくしておくことにより、さらに良好な液切れ効果を得ることが可能になる。本実施形態では、延長流路１４は、流出開口１５側の端部分の液吐出流路１４ａが、上下方向のみならず左右方向においても、液保留流路１４ｂから絞られた断面形状を有するように形成されているので、バックサクションによる液切れ効果を一層向上させることが可能になる。 Furthermore, since the leakage and dripping of the content liquid before squeezing the trunk portion 12b can be effectively avoided as described above, it is possible to obtain a good drainage due to the back suction of the content liquid when the squeezed state is released. Is possible. Such liquid breakage due to back suction causes the volume of the extension flow path 14 bent in a spiral shape to be smaller than the decrease in the volume of the body 12b due to deformation of the container body 12 when the squeeze container 11 is squeezed. By making it small, it becomes possible to obtain a better liquid draining effect. In this embodiment, the extended flow path 14 has a cross-sectional shape in which the liquid discharge flow path 14a at the end portion on the outflow opening 15 side is narrowed from the liquid storage flow path 14b not only in the vertical direction but also in the horizontal direction. Therefore, the effect of running out of liquid due to back suction can be further improved.

さらにまた、本第１実施形態では、延長流路１４は、容積が小さく且つ断面積が小さな流出開口１５側の端部分の液吐出流路１４ａと、容積が大きく且つ断面積が大きな液吐出流路１４ａよりも流入口１８側の部分の液保留流路１４ｂとからなるので、容器１１を傾けたときに、液保留流路１４ｂに内容液を保留することで液だれを防止できることに加えて、吐出時には内容液は摩擦抵抗が小さい液吐出流路１４ａを通過することになるため、内容液を吐出する際の吐出性をさらに向上させることが可能になる。 Furthermore, in the first embodiment, the extension flow path 14 has the liquid discharge flow path 14a at the end portion on the outflow opening 15 side having a small volume and a small cross-sectional area, and a liquid discharge flow having a large volume and a large cross-sectional area. In addition to being able to prevent liquid dripping by holding the liquid content in the liquid holding channel 14b when the container 11 is tilted, the liquid holding channel 14b is located on the inlet 18 side of the channel 14a. During discharge, the content liquid passes through the liquid discharge flow path 14a having a small frictional resistance, so that it is possible to further improve the discharge performance when discharging the content liquid.

また、本第１実施形態では、延長流路１４が水平方向の渦巻流路となっているので、良好な液ダレ防止効果を有すると共に、流路を長くすることができ、かつ流路をコンパクトにできるため、キャップを小さくして樹脂量を少なくできるという作用効果が得られる。さらに、液保留流路１４ｂを左右に仕切って分割する仕切壁２５，２６が設けられているので、仕切壁２５，２６によって接触面が増えるために、内容液と仕切壁２５，２６との間で摩擦抵抗が生じて、液ダレ防止効果をさらに向上させることが可能になる。 Further, in the first embodiment, since the extension flow path 14 is a horizontal spiral flow path, it has a good liquid dripping prevention effect, can be lengthened, and the flow path is compact. Therefore, the effect of being able to reduce the amount of resin by reducing the cap can be obtained. Furthermore, since the partition walls 25 and 26 which divide | segment the liquid storage flow path 14b into right and left are provided, since a contact surface increases with the partition walls 25 and 26, between the content liquid and the partition walls 25 and 26, it is. As a result, frictional resistance is generated, and the dripping prevention effect can be further improved.

図４は、本発明の好ましい第２実施形態に係るスクイズ容器用キャップ３０を示している。本第２実施形態に係るスクイズ容器用キャップ３０は、円形の天面部３０ａと、天面部３０ａの周縁部分から一体として下方に延設する、円環スカート形状の周壁部３０ｂとを含んで構成されており、上記第１実施形態のスクイズ容器用キャップ１０と同様に、スクイズ容器１１の容器本体１２の口首部１２ａに取り付けて用いられる。また、天面部３０ａには、これの中央部分に流出開口３１が形成されおり、流出開口３１の外周部分から上方に突出して、先端に吐出口３２ａを備えるノズル部３２が設けられている。 FIG. 4 shows a squeeze container cap 30 according to a second preferred embodiment of the present invention. The squeeze container cap 30 according to the second embodiment includes a circular top surface portion 30a and an annular skirt-shaped peripheral wall portion 30b extending downward integrally from the peripheral portion of the top surface portion 30a. Similarly to the squeeze container cap 10 of the first embodiment, the squeeze container 11 is used by being attached to the mouth portion 12a of the container body 12 of the squeeze container 11. In addition, the top surface portion 30a has an outflow opening 31 formed at the center thereof, and a nozzle portion 32 that protrudes upward from the outer peripheral portion of the outflow opening 31 and includes a discharge port 32a at the tip.

本第２実施形態では、キャップ３０の天面部３０ａの下面には天面凹溝は設けられておらず、環状装着突起３３によって囲まれる部分の天面部３０ａの下面は、平坦な面となっている。そして、本第２実施形態では、環状装着突起３３によって囲まれる部分の天面部３０ａの平坦な下面に密着させて、吐出部凹溝３４ａと保留部凹溝３４ｂとからなる凹溝３４が上面に形成された、図５（ａ）、（ｂ）に示すような装着部材３５が重ねて取り付けられる。これによって、天面部の下面に沿って延設する延長流路３６が形成される。 In the second embodiment, no top groove is provided on the bottom surface of the top surface portion 30a of the cap 30, and the bottom surface of the top surface portion 30a surrounded by the annular mounting protrusion 33 is a flat surface. Yes. In the second embodiment, the concave groove 34 formed by the discharge portion concave groove 34a and the retaining portion concave groove 34b is brought into close contact with the flat lower surface of the top surface portion 30a surrounded by the annular mounting protrusion 33. The formed mounting member 35 as shown in FIGS. 5A and 5B is attached in an overlapping manner. As a result, an extended flow path 36 extending along the lower surface of the top surface portion is formed.

すなわち、装着部材３５は、上記第１実施形態の装着部材１７と同様に、相当の厚さを有する円形ドラム形状を有するプラスチック製の成形品であって、これの上面に所定の平面形状及び深さの溝を形成することで、吐出部凹溝３４ａと、保留部凹溝３４ｂとからなる、渦巻状の凹溝３４が設けられている。さらに、保留部凹溝３４ｂの始端部である、吐出部凹溝３４ａとは反対側の保留部凹溝３４ｂの端部には、装着部材３５の底面部を貫通して流入口３７が開口形成されている。 That is, the mounting member 35 is a plastic molded product having a circular drum shape having a considerable thickness, similar to the mounting member 17 of the first embodiment, and has a predetermined planar shape and depth on the upper surface thereof. By forming the groove, a spiral groove 34 composed of a discharge portion groove 34a and a retaining portion groove 34b is provided. Further, an inlet 37 is formed through the bottom surface of the mounting member 35 at the end of the retaining groove 34b opposite to the discharge groove 34a, which is the starting end of the retaining groove 34b. Has been.

また、本第２実施形態では、凹溝３４を構成する保留部凹溝３４ｂは、矩形断面形状を有する溝として、装着部材３５の周縁部分に沿って平面形状が略半円を描くように延設して設けられている。吐出部凹溝３４ａは、装着部材３５の底面と垂直な段差壁部３８を絞り部として介在させて、保留部凹溝３４ｂの底部よりも一段高い位置に設けられる。吐出部凹溝３４ａは、半円断面形状を有する溝として、保留部凹溝３４ｂの終端部と連続して平面形状が保留部凹溝３４ｂよりも曲率半径の小さな円弧を描くように保留部凹溝３４ｂの内側に向って延設し、その終端部が装着部材３５の中心部分に配置されるように設けられている。吐出部凹溝３４ａ及び保留部凹溝３４ｂによって、凹溝３４は、全体として渦巻状に延設する渦巻溝を形成することになる。 Further, in the second embodiment, the retaining portion concave groove 34b constituting the concave groove 34 is a groove having a rectangular cross-sectional shape, and the planar shape extends along the peripheral portion of the mounting member 35 so as to draw a substantially semicircle. Provided. The discharge groove 34a is provided at a position one step higher than the bottom of the retaining groove 34b with a stepped wall 38 perpendicular to the bottom surface of the mounting member 35 interposed therebetween as a throttle. The discharge groove 34a is a groove having a semicircular cross-sectional shape. The discharge groove 34a is continuous with the terminal portion of the retention groove 34b so that the planar shape draws an arc having a smaller radius of curvature than the retention groove 34b. It extends toward the inside of the groove 34 b and is provided so that its end portion is disposed at the central portion of the mounting member 35. Due to the discharge groove 34a and the retaining groove 34b, the groove 34 forms a spiral groove extending in a spiral shape as a whole.

さらに、本第２実施形態では、天面部３０ａの下面に突出する環状装着突起３３の内側に装着部材３５を下方から嵌め込むようにして取り付けて（図４参照）、装着部材３５を天面部３０ａに重ね合わせると共に、キャップ３０の天面部３０ａの平坦な下面に装着部材３５の上面を密着させることで、液吐出流路３６ａと液保留流路３６ｂとからなる延長流路３６が形成される。すなわち、天面部３０ａの下面との密着面３９に沿って配置された装着部材３５の上面の半円断面形状を有する吐出部凹溝３４ａによって、半円形断面形状の液吐出流路３６ａが形成されると共に、密着面３９に沿って配置された装着部材３５の上面の矩形断面形状を有する保留部凹溝３４ｂによって、矩形断面形状の液保留流路３６ｂが形成される。 Further, in the second embodiment, the mounting member 35 is attached to the inside of the annular mounting protrusion 33 protruding from the lower surface of the top surface portion 30a so as to be fitted from below (see FIG. 4), and the mounting member 35 is overlapped on the top surface portion 30a. At the same time, the upper surface of the mounting member 35 is brought into close contact with the flat lower surface of the top surface portion 30a of the cap 30, whereby the extended flow channel 36 composed of the liquid discharge flow channel 36a and the liquid holding flow channel 36b is formed. That is, the liquid discharge flow path 36a having a semicircular cross-sectional shape is formed by the discharge portion concave groove 34a having a semicircular cross-sectional shape on the upper surface of the mounting member 35 disposed along the contact surface 39 with the lower surface of the top surface portion 30a. In addition, a liquid retaining channel 36b having a rectangular cross-section is formed by the retaining groove 34b having a rectangular cross-sectional shape on the upper surface of the mounting member 35 disposed along the contact surface 39.

そして、本第２実施形態のスクイズ容器用キャップ３０によっても、容積が小さく且つ断面積が小さな流出開口３１側の端部分の液吐出流路３６ａと、容積が大きく且つ断面積が大きな液吐出流路３６ａよりも流入口３７側の部分の液保留流路３６ｂとからなる延長流路３６を備えているので、上記第１実施形態のスクイズ容器用キャップ１０と略同様の作用効果が奏される。 The squeeze container cap 30 of the second embodiment also has a liquid discharge flow path 36a at the end portion on the outflow opening 31 side having a small volume and a small cross-sectional area, and a liquid discharge flow having a large volume and a large cross-sectional area. Since the extended flow path 36 including the liquid holding flow path 36b on the inlet 37 side of the path 36a is provided, the same effects as the squeeze container cap 10 of the first embodiment are exhibited. .

本発明は上記各実施形態に限定されることなく種々の変更が可能である。例えば、天面部の下面に沿って延設する延長流路は、キャップの天面部の下面に設けられた凹溝や装着部材の上面に設けられた凹溝によって形成されるものである必要は必ずしも無く、内部に液吐出流路と液保留流路とからなる延長流路が予め形成された装着部材を、天面部の下面に重ねて嵌め込むことで、天面部の下面に沿って延長流路を形成することもできる。 The present invention is not limited to the above embodiments, and various modifications can be made. For example, the extension flow path extending along the lower surface of the top surface portion does not necessarily need to be formed by a groove provided on the lower surface of the top surface portion of the cap or a groove provided on the upper surface of the mounting member. There is no extension flow path along the lower surface of the top surface portion by fitting a mounting member in which an extension flow channel consisting of a liquid discharge flow channel and a liquid retention flow channel is formed in advance on the lower surface of the top surface portion. Can also be formed.

例えば、図６に示すように、隙間部８０を介在させて流出開口８１と接続されることになる上側凹溝８２が下面に形成された上側装着部材８３と、流入口８４と接続する下側凹溝８５が上側凹溝８２と合致する形状となるように上面に形成された下側装着部材８６とを、重ね合わせて一体化することで、内部に液吐出流路８７ａと液保留流路８７ｂとからなる延長流路８７が予め形成された装着部材８８を形成することができる。この装着部材８８を、上端部内側に嵌合部８９ａが設けられた環状装着突起８９に嵌め込むことによって、キャップ９０の天面部９０ａの下面に沿って延長流路８７を形成することができる。この場合に、吐出口９０ｂへの流出開口８１が形成されたキャップ９０の天面部９０ａの下面の下方に近接させて、当該下面との間に隙間部８０を介在させた状態で装着部材８８が重ねて取り付けられることになる。また延長流路８７は、天面部９０ａの流出開口８１と、隙間部８０を挟んで連通することになると共に、装着部材８８に形成された流入口８４を介して容器本体の口首部と連通することになる。図６に示すスクイズ容器用キャップ９０によっても、上記第１実施形態のスクイズ容器用キャップ１０と略同様の作用効果が奏される。 For example, as shown in FIG. 6, an upper mounting member 83 in which an upper concave groove 82 that is to be connected to the outflow opening 81 with a gap 80 interposed is formed on the lower surface, and a lower side that is connected to the inflow port 84. The lower mounting member 86 formed on the upper surface so that the concave groove 85 has a shape that matches the upper concave groove 82 is overlapped and integrated, so that the liquid discharge flow path 87a and the liquid retention flow path are contained therein. It is possible to form the mounting member 88 in which the extended flow path 87 composed of 87b is formed in advance. The extension channel 87 can be formed along the lower surface of the top surface portion 90a of the cap 90 by fitting the mounting member 88 into an annular mounting projection 89 provided with a fitting portion 89a on the inner side of the upper end portion. In this case, the mounting member 88 is brought close to the lower surface of the top surface portion 90a of the cap 90 in which the outflow opening 81 to the discharge port 90b is formed, and the gap portion 80 is interposed between the mounting surface 88 and the lower surface. It will be attached in layers. Further, the extension channel 87 communicates with the outflow opening 81 of the top surface portion 90a with the gap 80 interposed therebetween, and also communicates with the mouth portion of the container body via the inflow port 84 formed in the mounting member 88. It will be. The squeeze container cap 90 shown in FIG. 6 also provides substantially the same operational effects as the squeeze container cap 10 of the first embodiment.

また、液吐出流路は、円形断面形状以外の、楕円断面形状、矩形形状等のその他の種々の断面形状を備えていても良く、液保留流路は、矩形断面形状以外の、円形断面形状、三角形断面形状等のその他の種々の断面形状を備えていても良い。 Further, the liquid discharge channel may have other various cross-sectional shapes such as an elliptical cross-sectional shape and a rectangular shape other than the circular cross-sectional shape, and the liquid holding flow channel has a circular cross-sectional shape other than the rectangular cross-sectional shape. Various other cross-sectional shapes such as a triangular cross-sectional shape may be provided.

さらに、本発明の効果を奏する範囲であれば、液吐出流路と液保留流路との間の絞り部は、段差壁部となっている必要は必ずしも無く、例えば図７に示すように、液保留流路４１から液吐出流路４２に向けて断面積を滑らかに縮小させるテーパー状の絞り部４０であっても良い。延長流路は、渦巻状に延設する渦巻流路となっている必要は必ずしも無い。また液保留流路を横断方向に分割する仕切壁を設ける必要は必ずしも無く、仕切壁は、液保留流路に２枚以上設けても良い。 Furthermore, as long as the effect of the present invention is achieved, the throttle portion between the liquid discharge channel and the liquid holding channel does not necessarily have to be a stepped wall portion, for example, as shown in FIG. A tapered throttle portion 40 that smoothly reduces the cross-sectional area from the liquid holding channel 41 toward the liquid discharge channel 42 may be used. The extended flow path does not necessarily have to be a spiral flow path extending in a spiral shape. Further, it is not always necessary to provide a partition wall that divides the liquid holding channel in the transverse direction, and two or more partition walls may be provided in the liquid holding channel.

さらにまた、延長流路の底面部を、スクイズ容器の正立状態で容器本体の胴部に向けた下り勾配となるように傾斜させて形成することもできる。延長流路の底面部を容器本体の胴部に向けた下り勾配とすることにより、例えばスクイズ容器の使用後に、スクイズ容器を正立状態で置いておけば、延長流路に内容液が残っている場合でも、残った内容液は底面部の下り勾配に沿って自重により流下して、容器本体の胴部にスムーズに回収されることになる。これによって、次のスクイズ容器の使用時に容器本体を把持して胴部をスクイズする際には、延長流路に内容液が残されていない状態とすることが可能になるので、例えば内容液のエア噛みによって内容液が飛び散るのをさらに効果的に回避することが可能になる。 Furthermore, the bottom surface portion of the extension channel can be formed so as to be inclined downward toward the trunk portion of the container body in the upright state of the squeeze container. By setting the bottom surface of the extension channel to a downward slope toward the body of the container body, for example, if the squeeze container is placed in an upright state after use, the content liquid remains in the extension channel. Even in the case, the remaining content liquid flows down by its own weight along the descending slope of the bottom surface portion, and is smoothly collected in the body portion of the container body. Accordingly, when the container body is gripped and the body portion is squeezed when the next squeeze container is used, it is possible to make the content liquid not left in the extension flow path. It is possible to more effectively avoid the scattering of the content liquid due to the air biting.

１０，３０，９０スクイズ容器用キャップ
１０ａ，３０ａ，９０ａ天面部
１１スクイズ容器
１２容器本体
１２ａ口首部
１３吐出流路
１３ａ，９０ｂ吐出口
１４，３６，８７延長流路
１４ａ，８７ａ液吐出流路
１４ｂ，８７ｂ液保留流路
１５，３１，８１流出開口
１６，３３環状装着突起
１６ａ係止リブ
１７，３５，８８装着部材
１８，３７，８４流入口
１９，３２ノズル部
２０天面凹溝
２０ａ吐出部天面凹溝
２０ｂ保留部天面凹溝
２１装着凹溝
２１ａ吐出部装着凹溝
２１ｂ保留部装着凹溝
２２，３８段差壁部（絞り部）
２５装着凹溝仕切壁
２６天面凹溝仕切壁
２７，３９密着面
３４凹溝
３４ａ吐出部凹溝
３４ｂ保留部凹溝
８０隙間部
８２上側凹溝
８３上側装着部材
８５下側凹溝
８６下側装着部材
８９環状装着突起
８９ａ嵌合部 10, 30, 90 Squeeze container caps 10a, 30a, 90a Top surface part 11 Squeeze container 12 Container body 12a Neck part 13 Discharge flow path 13a, 90b Discharge opening 14, 36, 87 Extension flow path 14a, 87a Liquid discharge flow path 14b , 87b Liquid retaining flow path 15, 31, 81 Outflow opening 16, 33 Annular mounting projection 16a Locking rib 17, 35, 88 Mounting member 18, 37, 84 Inlet 19, 32 Nozzle part 20 Top surface groove 20a Discharge part Top surface groove 20b Reserving part top surface groove 21 Mounting groove 21a Discharge part mounting groove 21b Reserving part mounting groove 22, 38 Step wall part (throttle part)
25 Mounting groove partition wall 26 Top surface groove partition walls 27, 39 Contact surface 34 Groove 34a Discharge groove 34b Reserving groove 80 Clearance 82 Upper groove 83 Upper mounting member 85 Lower groove 86 Lower side Mounting member 89 annular mounting projection 89a fitting portion

Claims

A squeeze container cap that is used by being attached to a mouth part of a container body made of plastic that can be deformed by squeeze, and that discharges the content liquid from the discharge outlet at the tip by squeeze deformation of the body part of the container body
The lower surface of the top surface portion is attached by attaching the mounting member so as to be close to the lower surface of the top surface portion in which the outflow opening to the discharge port of the cap is formed or in close contact with the lower surface of the top surface portion. An extended flow path extending along the throat is formed, the extended flow path communicates with the outflow opening of the top surface portion, and the mouth portion of the container body through the inflow port formed in the mounting member Communicated with
The extension flow path includes a liquid discharge flow path at an end portion on the outflow opening side that is continuous through a throttle portion, and a liquid retention flow path at a portion closer to the inlet than the liquid discharge flow path. The volume of the liquid holding channel is larger than the volume of the liquid discharging channel, and the cross-sectional area on the liquid discharging channel side across the throttle portion is larger than the cross-sectional area on the liquid holding channel side Is also smaller,
The liquid holding channel is provided with at least one partition wall that divides the liquid holding channel, extending in the extending direction of the liquid holding channel ,
The squeeze container cap , wherein the extension channel is a spiral channel extending in a spiral shape along the lower surface of the top surface portion .

The squeeze container cap according to claim 1, wherein the volume of the liquid discharge channel is 10 to 80% of the volume of the liquid storage channel.

3. The squeeze container cap according to claim 1, wherein a cross-sectional area on the liquid discharge flow channel side across the throttle portion is 10 to 80% of a cross-sectional area on the liquid retention flow channel side.

The squeeze container cap according to any one of claims 1 to 3, wherein the throttle portion between the liquid discharge channel and the liquid storage channel is a stepped wall portion.

The squeeze container cap according to any one of claims 1 to 4, wherein the liquid discharge flow path has a circular cross-sectional shape, and the liquid storage flow path has a rectangular cross-sectional shape.