JP2024059019A

JP2024059019A - Hinge Cap

Info

Publication number: JP2024059019A
Application number: JP2022166489A
Authority: JP
Inventors: 奈三江馬場; Namie Baba
Original assignee: Toppan Holdings Inc
Current assignee: Toppan Holdings Inc
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2024-04-30

Abstract

To provide a hinge cap which can acquire a feeling of lid closing more surely, and in which sealability is favorable.SOLUTION: A hinge cap mounted on an opening part 1A of a bottle 1, has: a cylindrical part 5 mounted on an outer diameter surface of the opening part 1A; and a lid part 2 including a top plate part 3 and a skirt part 4 connected to the cylindrical part 5 via a hinge 6. The hinge cap also has: an outer ring 8 provided at the cylindrical part 5 and coming into contact with the outer diameter surface 1Ab of the opening part 1A; a part 8b to be fitted formed on the outer diameter surface of the outer ring 8; an inner ring 9 protruding from the top plate part 3 and coming into contact with an inner diameter surface of the opening part; and two fitting parts 10 provided at the skirt part 4 and fitted in the part 8b to be fitted. A first straight line L1 and a second straight line L2 passing a center P of a circle that defines the lid part are assumed. Only one fitting part 10 is arranged at each of right and left regions obtained by dividing a region separated more from the hinge 6 than the second straight line L2 by the first straight line L1.SELECTED DRAWING: Figure 1

Description

本発明は、ブロー成形で形成されたボトルなどの軟質のボトルの筒状の開口部に取り付けられる硬質のヒンジキャップ及びそのキャップを備えた容器構造に関する技術である。本発明は、例えば、食品やトイレタリー等の分野で内容物を保持するための容器に取り付けられて使用される、ヒンジキャップに関する。 The present invention relates to a technology relating to a rigid hinge cap that is attached to the cylindrical opening of a soft bottle, such as a bottle formed by blow molding, and a container structure equipped with the cap. The present invention relates to a hinge cap that is attached to and used in containers for holding contents, for example, in the fields of food, toiletries, etc.

特許文献１には、軟質のブローボトルの開口部に取り付けるヒンジキャップが開示されている。
特許文献１に記載の容器構造は、容器本体とキャップとからなる。容器本体は、下方に胴部、上方に開口部、胴部上端から開口部にかけてキャップ嵌合部を有する。キャップ嵌合部は、外周下方に凸状の係止リングを有する。キャップは、キャップ嵌合部を覆うキャップ筒状部と、キャップ筒状部上端から内側に張り出した天板と、天板内側でキャップ嵌合部に平行なインナーリングと、を有する。また、キャップ筒状部の下方内面全周に凹部で形成され、係止リングと係止可能な係止嵌合部を有する。また、係止嵌合部上方において、キャップ筒状部内面とインナーリング外面とが、それぞれ、少なくとも１箇所ずつ、全周状に当接可能な当接嵌合部を有する。特許文献１には、このような構成によって、容器の開口部にパッキンを使用しなくても、防湿性の高い密封容器を得ることが開示されている。 Patent Document 1 discloses a hinge cap that is attached to the opening of a soft blow bottle.
The container structure described in Patent Document 1 is composed of a container body and a cap. The container body has a body part at the bottom, an opening at the top, and a cap fitting part from the top end of the body to the opening. The cap fitting part has a protruding locking ring at the bottom of the outer periphery. The cap has a cap tubular part covering the cap fitting part, a top plate protruding inward from the top end of the cap tubular part, and an inner ring parallel to the cap fitting part inside the top plate. The cap also has a locking fitting part formed as a recess on the entire inner surface of the lower part of the cap tubular part and capable of locking with the locking ring. Moreover, above the locking fitting part, the inner surface of the cap tubular part and the outer surface of the inner ring each have at least one abutting fitting part that can abut all around. Patent Document 1 discloses that such a configuration allows a highly moisture-proof sealed container to be obtained without using a packing at the opening of the container.

特許文献１に記載のヒンジキャップのように、現在、市場で多く採用されているヒンジキャップでは、キャップの天板（蓋部）から下垂したインナーリングによって、容器を密閉しようとしているケースが多い。ここで言うインナーリングとは、容器の開口部内径面に接触することで、密閉機能を実現する構造を指す。 In hinge caps currently widely used on the market, such as the hinge cap described in Patent Document 1, the container is often sealed with an inner ring that hangs down from the top plate (lid) of the cap. The inner ring here refers to a structure that achieves a sealing function by coming into contact with the inner diameter surface of the opening of the container.

特開２０１８－２０３３５０号公報JP 2018-203350 A

ここで、ガム収納容器のような軟質の容器の開口部の内径面とインナーリングとを接触させる場合、密閉性を向上させるために、キャップの材質としてＬＤＰＥなど比較的柔らかい樹脂を使用することが望ましい。しかしながら、柔らかい樹脂で形成されたキャップは、蓋を閉めた時の感触（クリック音）等が弱く、蓋が閉まったかどうかの認識がユーザーに分かり難い、という課題があった。
蓋を確実に閉めたという感触を優先したい場合には、キャップの材質としてＰＰなどの比較的固い樹脂を選定する必要がある。しかし、硬い樹脂は柔らかい樹脂と比べて弾力性に劣る。このため、蓋を閉めた際に、蓋が開口部から外側に押し戻されて容器の開口部との間に隙間が生じやすくなり、容器の密閉性が悪くなるという別の課題が生じる。 When the inner diameter surface of the opening of a soft container such as a gum container is brought into contact with the inner ring, it is desirable to use a relatively soft resin such as LDPE as the material of the cap in order to improve the sealing performance. However, there is an issue that a cap made of a soft resin has a weak feel (click sound) when the lid is closed, making it difficult for the user to recognize whether the lid is closed or not.
If you want to prioritize the feeling that the lid is securely closed, you need to select a relatively hard resin such as PP as the material for the cap. However, hard resins are less elastic than softer resins. For this reason, when the lid is closed, it is easy for the lid to be pushed back outward from the opening, creating a gap between the lid and the opening of the container, which creates another problem of poor sealing of the container.

本発明は、上記のような点に着目してもので、キャップの材質としてＰＰなどの比較的固い樹脂を選定しても、蓋を閉めた時の感触がより確実に得られると共に、容器の密閉性が良好なヒンジキャップを提供することを目的としている。 The present invention focuses on the above points and aims to provide a hinge cap that provides a more reliable feel when closing the lid and provides good sealing of the container, even if a relatively hard resin such as PP is selected as the cap material.

課題解決のために、本発明の一態様は、開口部に向けて延在する筒状の開口部を有するボトルの、当該開口部に取り付けられて、上記開口部よりも硬質の樹脂からなるヒンジキャップであって、上記開口部の外径面に対向して、当該開口部の外径面に取り付けられる筒状部と、上記開口部を閉塞した閉じ位置で内面が上記開口部と対向する天板部と、上記天板部の外周に連続して上記開口部の外径面側に位置すると共に上記筒状部にヒンジを介して接続する筒状のスカート部と、を備える蓋部と、を有し、更に、上記筒状部に設けられて上記開口部外径面の周方向に沿って延在し、内径面が上記開口部外径面に当接する環状のアウターリングと、上記アウターリングの外径面に形成され、その外径面の周方向に沿って延在する環状の溝部からなる被嵌合部と、上記閉じ位置で、上記天板部の内面から上記開口部内に延在し、外径面が上記開口部の内径面に当接する環状のインナーリングと、上記スカート部に設けられて上記被嵌合部に嵌合する２つの嵌合部と、を有し、平面視において、上記筒状のスカート部を規定する円の中心と上記ヒンジの幅方向中心を通過する仮想の直線を第１直線とし、上記中心を通過し上記第１直線と直交する仮想の直線を第２直線とし、平面視において、上記第２直線よりも上記ヒンジから離れた領域である離隔領域を上記第１直線で区切った左右の領域にそれぞれ上記嵌合部が1つだけ配置され、各嵌合部は、上記第１直線と重ならない位置に配置されている。 In order to solve the problem, one aspect of the present invention is a hinge cap that is attached to the opening of a bottle having a cylindrical opening extending toward the opening and is made of a resin harder than the opening, and has a lid portion that includes a cylindrical portion that faces the outer diameter surface of the opening and is attached to the outer diameter surface of the opening, a top plate portion whose inner surface faces the opening in a closed position in which the opening is closed, and a cylindrical skirt portion that is continuous with the outer periphery of the top plate portion and is located on the outer diameter surface side of the opening and is connected to the cylindrical portion via a hinge, and further includes an annular outer ring that is provided on the cylindrical portion and extends circumferentially along the outer diameter surface of the opening and has an inner diameter surface that abuts against the outer diameter surface of the opening, and an outer diameter surface that is formed on the outer diameter surface of the outer ring and has a tubular portion that is abutted against the outer diameter surface of the opening. a fitted portion consisting of an annular groove portion extending along the circumferential direction of the hinge; an annular inner ring that extends from the inner surface of the top plate portion into the opening in the closed position and whose outer diameter surface abuts the inner diameter surface of the opening; and two fitting portions provided on the skirt portion that fit into the fitted portion. In a plan view, a virtual line passing through the center of a circle that defines the cylindrical skirt portion and the center in the width direction of the hinge is defined as a first line, and a virtual line passing through the center and perpendicular to the first line is defined as a second line. In a plan view, only one fitting portion is disposed in each of the left and right regions that are separated by the first line from a separation region that is a region farther from the hinge than the second line, and each fitting portion is disposed in a position that does not overlap with the first line.

本発明の態様によれば、容器よりも硬質の材料からなるキャップであっても、蓋を閉めた時の感触がより確実に得られると共に、容器の密閉性が良好であるヒンジキャップを提供可能となる。 According to this aspect of the present invention, it is possible to provide a hinge cap that provides a more reliable feel when the lid is closed and provides good sealing of the container, even if the cap is made of a material harder than the container.

本発明に基づく実施形態に係る閉じ位置のヒンジキャップを説明する断面図（図２のＸ－Ｘ位置での断面図）である。2A is a cross-sectional view (cross-sectional view taken along the line XX in FIG. 2 ) illustrating a hinge cap in a closed position according to an embodiment of the present invention; ヒンジキャップを開いた状態での構成を説明する上面図である。FIG. 13 is a top view illustrating the configuration when the hinge cap is open.

次に、本発明の実施形態について図面を参照して説明する。
（構成）
本実施形態のヒンジキャップは、図１に示すように、開口部に向けて延在する筒状の開口部を有するボトル１（容器）の、当該開口部１Ａに取り付けられるキャップである。そして、そのキャップとボトル１によって、容器構造が構成される。
ボトル１は、例えば、ＬＤＰＥなどの軟質の樹脂からなり、ブロー成形で形成された軟質のボトルである。本実施形態のヒンジキャップは、開口部１Ａよりも硬質の樹脂から構成される。ヒンジキャップは、例えばＰＰやＨＤＰＥを材料として構成される。
本実施形態のヒンジキャップは、図１に示すように、開口部１Ａの外径面１Ａｂに取り付けられる筒状部５と、筒状部５に対し、ヒンジ６を介して開閉可能に接続する蓋部２とを備える。 Next, an embodiment of the present invention will be described with reference to the drawings.
(composition)
The hinge cap of this embodiment is a cap that is attached to an opening 1A of a bottle 1 (container) having a cylindrical opening extending toward the opening, as shown in Fig. 1. The cap and the bottle 1 form a container structure.
The bottle 1 is a soft bottle made of soft resin such as LDPE and formed by blow molding. The hinge cap of this embodiment is made of a resin harder than the opening 1A. The hinge cap is made of a material such as PP or HDPE.
As shown in FIG. 1, the hinge cap of this embodiment includes a cylindrical portion 5 attached to an outer diameter surface 1Ab of an opening 1A, and a lid portion 2 connected to the cylindrical portion 5 via a hinge 6 so as to be openable and closable.

＜筒状部５＞
筒状部５は、開口部１Ａの外径面１Ａｂに対向して当該開口部１Ａと同軸に配置された状態で、当該開口部１Ａの外径面１Ａｂに取り付けられる。
本実施形態では、図１に示すように、開口部１Ａは、下部側の大径部と上部側の小径部とを有する。そして、開口部１Ａの大径部の外径面１Ａｂに、筒状部５の下部側が開口部１Ａ係止することで、開口部１Ａに対し、筒状部５が取り付けられている。これによって、図１に示すように、筒状部５の小径部と筒状部５との間に、空間が確保されている。 <Cylindrical portion 5>
The cylindrical portion 5 is attached to the outer diameter surface 1Ab of the opening 1A in a state where it is disposed opposite the outer diameter surface 1Ab of the opening 1A and coaxially with the opening 1A.
In this embodiment, as shown in Fig. 1, the opening 1A has a large diameter portion on the lower side and a small diameter portion on the upper side. The lower side of the cylindrical portion 5 is engaged with the outer diameter surface 1Ab of the large diameter portion of the opening 1A, thereby attaching the cylindrical portion 5 to the opening 1A. This ensures a space between the small diameter portion of the cylindrical portion 5 and the cylindrical portion 5, as shown in Fig. 1.

［アウターリング８］
環状のアウターリング８が、筒状部５に設けられている。アウターリング８は、小径部と対向可能な位置、つまり筒状部５の上部位置から内径方向に突出している。アウターリング８は、開口部１Ａの外径面１Ａｂの周方向に沿って延在し、内径面が上記開口部１Ａの外径面１Ａｂに当接する環状部材である。 [Outer ring 8]
An annular outer ring 8 is provided on the cylindrical portion 5. The outer ring 8 protrudes inwardly from a position where it can face the small diameter portion, that is, from an upper position of the cylindrical portion 5. The outer ring 8 is an annular member that extends circumferentially around the outer diameter surface 1Ab of the opening 1A and has an inner diameter surface that abuts against the outer diameter surface 1Ab of the opening 1A.

［被嵌合部８ｂ］
被嵌合部８ｂがアウターリング８に設けられている。被嵌合部８ｂは、アウターリング８の外径面に形成され、その外径面の周方向に沿って延在する環状の溝部からなる。
環状の溝部は、全周（無端環状）に形状する必要はなく、嵌合部１０と嵌合可能な領域、例えば、ヒンジ６から離れた領域（後述の離隔領域）にだけ形成されていれば良い。ただし、無端環状に形成する方が、溝部の形成が容易となる。 [Fitted portion 8b]
The fitted portion 8b is provided on the outer ring 8. The fitted portion 8b is formed on the outer diameter surface of the outer ring 8 and is composed of an annular groove portion extending along the circumferential direction of the outer diameter surface.
The annular groove does not need to be shaped around the entire circumference (endless ring), but only needs to be formed in an area that can fit with the fitting portion 10, for example, an area (a separated area described later) away from the hinge 6. However, forming the groove in an endless ring shape makes it easier to form the groove.

＜蓋部２＞
蓋部２は、図１に示すように、天板部３とスカート部４とを備える。
ここで、図１に示すように、蓋部２で開口部１Ａ上端の開口を閉じて閉塞した状態の蓋部２の位置を、閉じ位置と呼ぶ。
天板部３は、図１に示すように、閉じ位置で、内面３ａが開口部１Ａの環状の上端面１Ａａの全面と対向して開口部１Ａに上方から対向した姿勢となる。
スカート部４は、天板部３と同軸に配置され、天板部３の外周に連続して下垂して、開口部１Ａの外径面１Ａｂ側に位置する筒状の部分となっている。スカート部４の下部が、ヒンジ６を介して筒状部５に接続する。符号１１は、蓋部２を開ける際に使用される取っ手となる突起部を示す。突起部１１は、ヒンジ６から一番離れた位置に形成されている。 <Cover part 2>
As shown in FIG. 1 , the lid portion 2 includes a top plate portion 3 and a skirt portion 4 .
Here, as shown in FIG. 1, the position of the lid 2 in a state where the lid 2 closes the opening at the upper end of the opening 1A is referred to as the closed position.
As shown in FIG. 1, in the closed position, the top plate 3 is oriented so as to face the opening 1A from above, with the inner surface 3a facing the entirety of the annular upper end surface 1Aa of the opening 1A.
The skirt portion 4 is disposed coaxially with the top plate portion 3, hangs down continuously from the outer periphery of the top plate portion 3, and is a cylindrical portion located on the outer diameter surface 1Ab side of the opening 1A. The lower part of the skirt portion 4 is connected to the cylindrical portion 5 via a hinge 6. Reference numeral 11 denotes a protrusion that serves as a handle to be used when opening the lid portion 2. The protrusion portion 11 is formed at a position furthest from the hinge 6.

［インナーリング９］
インナーリング９は、天板部３に設けられている。インナーリング９は、天板部３の内面３ａから突出した環状部材であって、閉じ位置で、図１に示すように、天板部３の内面３ａから開口部１Ａ内に延在し、外径面が開口部１Ａの内径面１Ａｃに当接する。
インナーリング９と当接可能な開口部１Ａの内径面１Ａｃは、上下に直線状に延びる円筒面で形成されることが好ましい。
また、閉じ位置で、図１に示すように、インナーリング９の一部とアウターリング８の一部とが、開口部１Ａを挟んで径方向で対向するように設計することが好ましい。 [Inner ring 9]
The inner ring 9 is provided on the top plate portion 3. The inner ring 9 is an annular member protruding from the inner surface 3a of the top plate portion 3, and in the closed position, as shown in Fig. 1, extends from the inner surface 3a of the top plate portion 3 into the opening 1A, with the outer diameter surface abutting against the inner diameter surface 1Ac of the opening 1A.
An inner diameter surface 1Ac of the opening 1A that can come into contact with the inner ring 9 is preferably formed of a cylindrical surface that extends linearly in the vertical direction.
In addition, it is preferable to design the ring 9 so that, in the closed position, as shown in FIG. 1, a part of the inner ring 9 and a part of the outer ring 8 face each other in the radial direction with the opening 1A therebetween.

［嵌合部１０］
２つの嵌合部１０が、スカート部４に設けられている。
２つの嵌合部１０の形成位置について説明する。
ここで、図２に示すように、平面視において、上記筒状のスカート部４若しくは円形形状の天板部３を規定する円の中心Ｐを考える。その中心Ｐとヒンジ６の幅方向中心とを通過する仮想の直線を第１直線Ｌ１とする。また、円の中心Ｐを通過し第１直線Ｌ１と直交する仮想の直線を第２直線Ｌ２とする。 [Fitting portion 10]
Two fitting portions 10 are provided on the skirt portion 4 .
The positions where the two fitting portions 10 are formed will be described.
2, consider the center P of a circle that defines the cylindrical skirt portion 4 or the circular top plate portion 3 in a plan view. An imaginary line passing through the center P and the width direction center of the hinge 6 is defined as a first line L1. Also, an imaginary line passing through the center P of the circle and perpendicular to the first line L1 is defined as a second line L2.

そして、２つの嵌合部１０は、平面視において、第２直線Ｌ２よりもヒンジ６から離れた領域（図２における、第２直線Ｌ２よりも左側の領域）である離隔領域に配置される。更に、２つの嵌合部１０は、上記の離隔領域を第１直線Ｌ１で区切ることで形成される左右の領域にそれぞれ１つずつ配置される。ただし、各嵌合部１０は、第１直線Ｌ１と重ならないように配置される。
２つの嵌合部１０は、平面視において、第１直線Ｌ１に対し線対称な位置に配置されることが好ましい。２つの嵌合部１０が、第１直線Ｌ１に対し左右対称に形成した場合、蓋部を閉める際に、２つの嵌合部１０が同じタイミングで嵌合することで、クリック感がより明確となるという効果を奏する。 The two mating portions 10 are disposed in a spaced region that is farther from the hinge 6 than the second straight line L2 in a plan view (the region to the left of the second straight line L2 in FIG. 2). Furthermore, the two mating portions 10 are disposed in left and right regions that are formed by dividing the above-mentioned spaced region by the first straight line L1. However, each mating portion 10 is disposed so as not to overlap with the first straight line L1.
The two fitting portions 10 are preferably disposed at positions that are line-symmetrical with respect to the first straight line L1 in a plan view. When the two fitting portions 10 are formed symmetrically with respect to the first straight line L1, the two fitting portions 10 fit together at the same time when the lid is closed, which provides an effect of providing a clearer clicking sensation.

また、各嵌合部１０は、平面視において、第１直線Ｌ１に近い近位端と円の中心Ｐとを結ぶ直線Ｌ３と第１直線Ｌ１とが成す角度θ１が、３０度以上６０度以下の範囲となるように設計することが好ましい。
また、各嵌合部１０は、平面視において、第１直線Ｌ１から離れた遠位端と円の中心Ｐとを結ぶ直線Ｌ４と第２直線Ｌ２とが成す角度θ２が、３０度以上６０度以下の範囲となるように設計することが好ましい。
より好ましくは、各嵌合部１０は、平面視において、円の中心Ｐを中心として、上記第１直線Ｌ１と成す角度が３０度以上６０度以下の範囲内に収まるように位置することが好ましい。これによって、各嵌合部１０は、第１直線Ｌ１の位置（ヒンジから一番離れた位置）からも第２直線Ｌ２の位置からも３０度以上離れた位置に形成される。 In addition, it is preferable to design each fitting portion 10 so that, when viewed in a plane, the angle θ1 between a line L3 connecting the proximal end close to the first line L1 and the center P of the circle and the first line L1 is in the range of 30 degrees or more and 60 degrees or less.
In addition, it is preferable to design each fitting portion 10 so that, when viewed in a plane, the angle θ2 formed by the line L4 connecting the distal end away from the first line L1 to the center P of the circle and the second line L2 is in the range of 30 degrees or more and 60 degrees or less.
More preferably, each fitting portion 10 is positioned such that the angle between the first straight line L1 and the center P of the circle falls within a range of 30 degrees to 60 degrees in plan view. As a result, each fitting portion 10 is formed at a position 30 degrees or more away from both the position of the first straight line L1 (the position farthest from the hinge) and the position of the second straight line L2.

ここで、「第１直線Ｌ１と成す角度が３０度以上６０度以下の範囲内に収まる」とは、近位端が３０度以上の範囲かつ遠位端が６０度以下の範囲に位置するのと同義である。
更に、各嵌合部１０は、平面視において、第１直線Ｌ１に近い近位端と円の中心Ｐとを結ぶ第１直線Ｌ１と、第１直線Ｌ１から離れた遠位端と円の中心Ｐとを結ぶ直線Ｌ４とが成す角度θ３が、５度以上４５度以下、より好ましくは５度以上３０度以下、もしくは１０度以上３０度以下であることが好ましい。 Here, "the angle with the first straight line L1 is within the range of 30 degrees or more and 60 degrees or less" is synonymous with the proximal end being located in the range of 30 degrees or more and the distal end being located in the range of 60 degrees or less.
Furthermore, in a planar view, it is preferable that the angle θ3 between a first straight line L1 connecting a proximal end close to the first straight line L1 and the center P of the circle and a straight line L4 connecting a distal end away from the first straight line L1 and the center P of the circle is 5 degrees or more and 45 degrees or less, more preferably 5 degrees or more and 30 degrees or less, or 10 degrees or more and 30 degrees or less.

［凸部３ｂ］
また、天板部３に凸部３ｂを形成しても良い。
凸部３ｂは、天板部３の内面３ａに形成した環状に延びる凸部である。凸部３ｂは、閉じ位置において、開口部１Ａの上端面１Ａａに沿って延在し、当該上端面１Ａａの全周に当接する。なお図２では、見やすくするため、凸部３ｂを省略した。
凸部３ｂは、無くても良いが、凸部３ｂを設けることで、密閉性が向上する。 [Convex portion 3b]
Moreover, the top plate portion 3 may be formed with a protrusion 3b.
The protrusion 3b is an annular protrusion formed on the inner surface 3a of the top plate 3. In the closed position, the protrusion 3b extends along the upper end surface 1Aa of the opening 1A and abuts against the entire circumference of the upper end surface 1Aa. Note that the protrusion 3b is omitted in FIG. 2 for ease of viewing.
The protrusion 3b is not essential, but providing the protrusion 3b improves the sealing performance.

（動作その他）
本実施形態では、開いた状態の蓋部２を、図１に示すような閉じ位置に向けて蓋部２を閉じ方向に移動させることで、開口部１Ａの内径面１Ａｃにインナーリング９が当接することで容器の密閉性を確保する。開口部１Ａの内径面１Ａｃが円筒面の場合、インナーリング９と開口部１Ａとの接触面積が稼ぐことが出来る。
このとき、開口部１Ａが軟質な材料から構成しても、開口部１Ａの外径面１Ａｂに筒状部５に形成したアウターリング８を当接させると共に開口部１Ａの内径面１Ａｃにインナーリング９を当接させる。この結果、軟質な開口部１Ａを、厚さ方向で、アウターリング８とインナーリング９とで挟み込み、より容器の密封を確保される。
このとき、上記の凸部３ｂを設ける場合、開口部１Ａの上端に凸部３ｂが当接することで、より密閉性が確保される。 (Action etc.)
In this embodiment, the lid 2 in the open state is moved in the closing direction toward the closed position as shown in Fig. 1, whereby the inner ring 9 abuts against the inner diameter surface 1Ac of the opening 1A, thereby ensuring the hermeticity of the container. If the inner diameter surface 1Ac of the opening 1A is a cylindrical surface, the contact area between the inner ring 9 and the opening 1A can be increased.
At this time, even if the opening 1A is made of a soft material, the outer ring 8 formed on the cylindrical portion 5 is abutted against the outer diameter surface 1Ab of the opening 1A, and the inner ring 9 is abutted against the inner diameter surface 1Ac of the opening 1A. As a result, the soft opening 1A is sandwiched between the outer ring 8 and the inner ring 9 in the thickness direction, and the container is more securely sealed.
In this case, when the above-mentioned protrusion 3b is provided, the protrusion 3b abuts against the upper end of the opening 1A, thereby ensuring better sealing.

また、本実施形態では、容器をブローボトル１とすると共に、蓋部２を閉じた際の感触（音）を優先して、キャップを、比較的固いＰＰ・ＨＤＰＥなどの樹脂とする。すなわち、キャップをボトル１よりも硬質の樹脂材料から構成する。
ここで、キャップを固い材料で形成した場合、容器を密閉するために、キャップを容器の開口部１Ａに強く接触させたときに、開口部１Ａに押し返されて蓋部２が勝手に上方に移動してしまうおそれがある。
これを回避するために、筒状部５に環状の溝部からなる被嵌合部８ｂを形成する共に、その被嵌合部８ｂに嵌合する嵌合部１０を蓋部２に設けた。 In this embodiment, the container is a blow bottle 1, and the cap is made of a relatively hard resin such as PP or HDPE, with a priority given to the feel (sound) when the lid part 2 is closed. In other words, the cap is made of a resin material that is harder than the bottle 1.
Here, if the cap is made of a hard material, when the cap is brought into strong contact with the opening 1A of the container to seal the container, there is a risk that the cap will be pushed back by the opening 1A, causing the lid portion 2 to move upward on its own.
In order to avoid this, the fitted portion 8b consisting of an annular groove is formed in the cylindrical portion 5, and the cover portion 2 is provided with a fitting portion 10 that fits into the fitted portion 8b.

本実施形態では、ヒンジ６から離れた位置に嵌合部１０を複数箇所設けることで、十分な嵌合力を確保して、閉じた蓋部２が上方に移動するのを防ぐ。
ここで、嵌合部を円周方向全周に設けた場合、嵌合力が強くなりすぎるため、閉じたキャップが硬くなりすぎる。これを回避するため、嵌合部１０を、部分的に複数箇所に設けた。
なお、嵌合部を突起部１１近傍にだけ設けた場合、蓋部２の左右の部分が浮き上がって、密閉性に悪影響が出る。このため、本実施形態では、第１直線Ｌ１を挟んだ左右両側に一つずつ嵌合部１０を設けた。 In this embodiment, by providing a plurality of fitting portions 10 at positions away from the hinge 6, a sufficient fitting force is ensured to prevent the closed lid portion 2 from moving upward.
Here, if the fitting portion is provided around the entire circumference in the circumferential direction, the fitting force becomes too strong, and the closed cap becomes too hard. To avoid this, the fitting portion 10 is provided at a plurality of locations.
If the fitting portion is provided only in the vicinity of the protrusion 11, the left and right portions of the lid portion 2 will rise up, adversely affecting the sealing performance. For this reason, in this embodiment, one fitting portion 10 is provided on each of the left and right sides of the first straight line L1.

また、本実施形態では、第２直線Ｌ２よりもヒンジ６から離れた離隔領域にだけ２つの嵌合部１０を設けた。第２直線Ｌ２よりもヒンジ６側に嵌合部を設ける場合よりも、嵌合部を小さくできるて、その分、閉じた蓋部が硬すぎることを防止する。
また、２つの嵌合部１０を、第２直線Ｌ２よりもヒンジ６から離れた離隔領域に設けると共に、第２直線Ｌ２よりもヒンジ６側にも嵌合部を設ける（全部で嵌合部を４カ所設ける）と、嵌合力が強くなりすぎて、閉じた蓋部２が開けにくくなる（硬くなる）。このため、本実施形態では、第２直線Ｌ２よりもヒンジ６から離れた離隔領域にだけ２つの嵌合部１０を設けた。 In this embodiment, the two fitting portions 10 are provided only in a separated region that is farther from the hinge 6 than the second straight line L2. This allows the fitting portions to be smaller than when the fitting portions are provided closer to the hinge 6 than the second straight line L2, thereby preventing the closed lid from being too hard.
Furthermore, if the two fitting portions 10 are provided in a spaced region farther from the hinge 6 than the second straight line L2, and a fitting portion is also provided on the hinge 6 side than the second straight line L2 (four fitting portions are provided in total), the fitting force becomes too strong, making it difficult (stiff) to open the closed lid portion 2. For this reason, in this embodiment, the two fitting portions 10 are provided only in the spaced region farther from the hinge 6 than the second straight line L2.

また、第２直線Ｌ２よりもヒンジ６側にも嵌合部を設けた場合、つまり４カ所に嵌合部を設けた場合、蓋部を閉じる際に、そのヒンジ６側の嵌合部が嵌合してから若しくは嵌合の途中で、第２直線Ｌ２よりもヒンジ６から離れた２つの嵌合部１０が嵌合する。このため、複数のクリック感が生じて、完全に蓋部２が閉じたと認識するためのクリック感がはっきりしない。
これに対し、本実施形態では、第２直線Ｌ２よりもヒンジ６から離れた２つの嵌合部１０だけであるため、１回のクリック感で締まったという感覚を認識できるため、蓋部が閉じたと認識するためのクリック感が向上する。 Furthermore, if a fitting portion is provided on the hinge 6 side of the second straight line L2, that is, if fitting portions are provided in four places, when closing the lid, the two fitting portions 10 that are farther from the hinge 6 than the second straight line L2 will fit after or during the fitting of the fitting portion on the hinge 6 side. This results in multiple clicking sensations, making it difficult to determine whether the lid 2 is completely closed.
In contrast, in this embodiment, there are only two fitting portions 10 that are farther away from the hinge 6 than the second straight line L2, so that the sense of tightening can be recognized with a single click, improving the clicking sensation for recognizing that the lid portion is closed.

以上のように、各嵌合部１０を、ヒンジ６側から離れた位置であって、しかも本開示の角度の範囲に位置するように設計することによって、各嵌合部１０が適度に先端（突起部１１）に近い位置に位置することになるため、クリック感を得やすくなると共に、各嵌合部１０が適度に先端から離れていることによって蓋部を開封する際に要する力を小さく設計することが可能となる、という効果をより顕著に奏する。
クリック感を向上する観点からは、２つの嵌合部１０は、第１直線Ｌ１に対し左右対称に形成する方が、２つの嵌合部１０が同時期に嵌合するため好ましい。
ここで、キャップを硬質の材料とすることで、嵌合部１０を嵌合させた際のクリック音や嵌合した感覚が明瞭となる。そして、クリック感は、嵌合部が嵌合する際のクリック音や嵌合したときの感覚で発生する。 As described above, by designing each fitting portion 10 to be located away from the hinge 6 side and within the angle range of the present disclosure, each fitting portion 10 is located at a position appropriately close to the tip (protrusion portion 11), making it easier to obtain a clicking sensation, and because each fitting portion 10 is appropriately distant from the tip, it is possible to design the force required to open the lid portion to be small, which more significantly achieves the effect.
From the standpoint of improving the clicking sensation, it is preferable that the two fitting portions 10 are formed symmetrically with respect to the first straight line L1, so that the two fitting portions 10 are fitted together at the same time.
Here, by using a hard material for the cap, the clicking sound and the feeling of engagement when the fitting portion 10 is fitted become clear. The clicking feeling is generated by the clicking sound when the fitting portions are fitted together and the feeling of engagement.

また、嵌合の際のクリック感を明瞭とする観点や蓋部を開けやすくする観点からは、各嵌合部１０の長さ（周方向に沿った長さ）は短い方がよい。なお、嵌合部１０の長さが長くなるほど、クリック感が不明瞭となる。このため、本実施形態では、嵌合部１０の長さを、円の中心Ｐからの角度θ３で４５度以下、好ましくは３０度以下に規定した。
ただし、嵌合部１０の長さが短すぎると、必要とする嵌合力が確保できないおそれがある。このため、本実施形態では、嵌合部１０の長さを、円の中心Ｐからの角度θ３で５度以上、好ましくは１０度以上とした。 From the viewpoint of making the clicking sensation when fitting clear and making it easy to open the lid, it is better for the length (length along the circumferential direction) of each fitting portion 10 to be short. Note that the longer the length of the fitting portion 10, the less clear the clicking sensation becomes. For this reason, in this embodiment, the length of the fitting portion 10 is set to an angle θ3 from the center P of the circle of 45 degrees or less, preferably 30 degrees or less.
However, if the length of the fitting portion 10 is too short, there is a risk that the required fitting force cannot be secured. For this reason, in this embodiment, the length of the fitting portion 10 is set to an angle θ3 from the center P of the circle of 5 degrees or more, preferably 10 degrees or more.

ここで、２つの嵌合部１０で安定して嵌合させるためには、上述の通り、各嵌合部１０は、平面視において、第１直線Ｌ１から離れた遠位端と円の中心Ｐとを結ぶ直線Ｌ４と第２直線Ｌ２とが成す角度θ２が、３０度以上６０度以下の範囲となるように設計することが好ましい。
以上のように、本実施形態のヒンジキャップを用いた場合、密閉性を確保しつつ、蓋部２が閉まったという感触（クリック音）を使用者により確実に与えることが可能となる。 Here, in order to stably engage the two engaging portions 10, as described above, it is preferable to design each engaging portion 10 so that, in a planar view, the angle θ2 formed by the line L4 connecting the distal end away from the first line L1 and the center P of the circle, and the second line L2, is in the range of 30 degrees or more and 60 degrees or less.
As described above, when the hinge cap of this embodiment is used, it is possible to ensure airtightness while more reliably giving the user the feeling (click sound) that the lid portion 2 is closed.

（その他）
本開示は、次の構成も取り得る。
（１）開口部に向けて延在する筒状の開口部を有するボトルの、当該開口部に取り付けられて、上記開口部よりも硬質の樹脂からなるヒンジキャップであって、
上記開口部の外径面に対向して、当該開口部の外径面に取り付けられる筒状部と、
上記開口部を閉塞した閉じ位置で内面が上記開口部の上端面と対向する天板部と、上記天板部の外周に連続して上記開口部の外径面側に位置すると共に上記筒状部にヒンジを介して接続する筒状のスカート部と、を備える蓋部と、
を有し、
更に、
上記筒状部に設けられて上記開口部の外径面の周方向に沿って延在し、内径面が上記開口部の外径面に当接する環状のアウターリングと、
上記アウターリングの外径面に形成され、その外径面の周方向に沿って延在する環状の溝部からなる被嵌合部と、
上記閉じ位置で、上記天板部の内面から上記開口部内に延在し、外径面が上記開口部の内径面に当接する環状のインナーリングと、
上記スカート部に設けられて上記被嵌合部に嵌合する２つの嵌合部と、
を有し、
平面視において、上記筒状のスカート部を規定する円の中心と上記ヒンジの幅方向中心を通過する仮想の直線を第１直線とし、上記中心を通過し上記第１直線と直交する仮想の直線を第２直線とし、
平面視において、上記第２直線よりも上記ヒンジから離れた領域である離隔領域を上記第１直線で区切った左右の領域にそれぞれ上記嵌合部が1つだけ配置され、各嵌合部は、上記第１直線と重ならない位置に配置されている。
（２）上記各嵌合部は、平面視において、上記第１直線に近い近位端と上記円の中心とを結ぶ直線と、上記第１直線とが成す角度を３０度以上６０度以下とした。
（３）上記各嵌合部は、平面視において、上記第１直線から離れた遠位端と上記円の中心とを結ぶ直線と、上記第２直線とが成す角度を３０度以上６０度以下とした。
（４）上記各嵌合部は、平面視において、上記円の中心を中心として、上記第１直線と成す角度が３０度以上６０度以下の範囲内に位置する。
（５）上記各嵌合部は、平面視において、上記第１直線に近い近位端と上記円の中心とを結ぶ直線と、上記第１直線から離れた遠位端と上記円の中心とを結ぶ直線とが成す角度が、５度以上４５度以下である。
（６）上記閉じ位置で、上記インナーリングの一部と上記アウターリングの一部とが、上記開口部を挟んで径方向で対向する。
（７）上記天板部の内面に、上記閉じ位置において、上記開口部の上端面に沿って延在し、当該上端面に当接する環状の凸部を有する。
（８）材質がＰＰまたはＨＤＰＥである本開示のヒンジキャップ。
（９）本開示のヒンジキャップと、開口部に向けて延在する筒状の開口部を有する上記ボトルとからなる、容器構造であって、
上記開口部は、上記インナーリングと当接可能な内径面の部分が、円筒面となっている。 (others)
The present disclosure may also have the following configuration.
(1) A hinge cap is attached to a bottle having a cylindrical opening extending toward the opening, and is made of a resin harder than the opening,
a cylindrical portion attached to the outer diameter surface of the opening and facing the outer diameter surface of the opening;
a cover portion including a top plate portion whose inner surface faces an upper end surface of the opening when the opening is closed, and a cylindrical skirt portion that is continuous with an outer periphery of the top plate portion, is located on the outer diameter surface side of the opening, and is connected to the cylindrical portion via a hinge;
having
Furthermore,
an annular outer ring provided on the cylindrical portion, extending along a circumferential direction of an outer diameter surface of the opening, and having an inner diameter surface abutting against the outer diameter surface of the opening;
a fitted portion formed of an annular groove portion that is formed on an outer circumferential surface of the outer ring and extends along a circumferential direction of the outer circumferential surface;
an annular inner ring that extends from an inner surface of the top plate portion into the opening at the closed position and has an outer diameter surface that abuts against an inner diameter surface of the opening;
Two fitting portions provided on the skirt portion and fitted to the fitted portion;
having
In a plan view, a virtual line passing through the center of a circle defining the cylindrical skirt portion and the width direction center of the hinge is defined as a first line, and a virtual line passing through the center and perpendicular to the first line is defined as a second line,
In a plan view, only one mating portion is arranged in each of the left and right regions obtained by dividing a separation region, which is a region farther from the hinge than the second straight line, by the first straight line, and each mating portion is arranged in a position that does not overlap with the first straight line.
(2) In a plan view, each of the fitting portions has an angle of 30 degrees or more and 60 degrees or less between the first line and a line connecting the proximal end closest to the first line and the center of the circle.
(3) In a plan view, each of the fitting portions has an angle between a line connecting a distal end away from the first line and the center of the circle and the second line that is greater than or equal to 30 degrees and less than or equal to 60 degrees.
(4) In a plan view, each of the fitting portions is located such that an angle between the first line and the center of the circle falls within a range of 30 degrees or more and 60 degrees or less.
(5) When viewed in a plane, the angle between a line connecting the proximal end closest to the first line and the center of the circle and a line connecting the distal end away from the first line and the center of the circle is greater than or equal to 5 degrees and less than or equal to 45 degrees.
(6) In the closed position, a portion of the inner ring and a portion of the outer ring face each other in the radial direction with the opening therebetween.
(7) The inner surface of the top plate has an annular protrusion that extends along the upper end surface of the opening and abuts against the upper end surface when in the closed position.
(8) A hinge cap according to the present disclosure, the material of which is PP or HDPE.
(9) A container structure comprising the hinge cap of the present disclosure and the bottle having a cylindrical opening extending toward the opening,
The opening has an inner diameter surface that can come into contact with the inner ring and has a cylindrical surface.

１ボトル
１Ａ開口部
２蓋部
３天板部
３ｂ凸部
４スカート部
５筒状部
６ヒンジ
８アウターリング
８ｂ被嵌合部
９インナーリング
１０嵌合部
Ｌ１第１直線
Ｌ２第２直線
Ｐ中心 Reference Signs List 1 Bottle 1A Opening 2 Lid 3 Top plate 3b Convex 4 Skirt 5 Cylindrical part 6 Hinge 8 Outer ring 8b Fitted part 9 Inner ring 10 Fitting part L1 First straight line L2 Second straight line P Center

Claims

A hinge cap is attached to an opening of a bottle having a cylindrical opening extending toward the opening, and is made of a resin harder than the opening,
a cylindrical portion attached to the outer diameter surface of the opening and facing the outer diameter surface of the opening;
a cover portion including a top plate portion whose inner surface faces an upper end surface of the opening when the opening is closed, and a cylindrical skirt portion that is continuous with an outer periphery of the top plate portion, is located on the outer diameter surface side of the opening, and is connected to the cylindrical portion via a hinge;
having
Furthermore,
an annular outer ring provided on the cylindrical portion, extending along a circumferential direction of an outer diameter surface of the opening, and having an inner diameter surface abutting against the outer diameter surface of the opening;
a fitted portion formed of an annular groove portion that is formed on an outer circumferential surface of the outer ring and extends along a circumferential direction of the outer circumferential surface;
an annular inner ring that extends from an inner surface of the top plate portion into the opening at the closed position and has an outer diameter surface that abuts against an inner diameter surface of the opening;
Two fitting portions provided on the skirt portion and fitted to the fitted portion;
having
In a plan view, a virtual straight line passing through the center of a circle defining the cylindrical skirt portion and the width direction center of the hinge is defined as a first straight line, and a virtual straight line passing through the center and perpendicular to the first straight line is defined as a second straight line.
In a plan view, a separation region, which is a region farther from the hinge than the second straight line, is divided by the first straight line, and one fitting portion is disposed in each of the left and right regions, and each fitting portion is disposed at a position not overlapping with the first straight line.
A hinge cap characterized by:

In each of the fitting portions, an angle between a line connecting a proximal end close to the first straight line and the center of the circle and the first straight line is set to be 30 degrees or more and 60 degrees or less in a plan view.
2. The hinge cap according to claim 1 .

In each of the fitting portions, an angle between a line connecting a distal end away from the first line and the center of the circle and the second line is set to be 30 degrees or more and 60 degrees or less in a plan view.
2. The hinge cap according to claim 1 .

Each of the fitting portions is located such that an angle formed between the first line and the center of the circle is within a range of 30 degrees or more and 60 degrees or less in plan view.
2. The hinge cap according to claim 1 .

In each of the fitting portions, an angle formed by a line connecting a proximal end close to the first straight line and the center of the circle and a line connecting a distal end away from the first straight line and the center of the circle is 5 degrees or more and 45 degrees or less in a plan view.
2. The hinge cap according to claim 1.

In the closed position, a portion of the inner ring and a portion of the outer ring face each other in a radial direction with the opening therebetween.
2. The hinge cap according to claim 1 .

an annular protrusion extending along an upper end surface of the opening and abutting the upper end surface at the closed position on an inner surface of the top plate;
2. The hinge cap according to claim 1 .

The hinge cap according to claim 1, made of PP or HDPE.

A container structure comprising the hinge cap according to any one of claims 1 to 8 and the bottle having a cylindrical opening extending toward the opening,
The opening has an inner diameter surface that can come into contact with the inner ring and has a cylindrical surface.
A container structure characterized by: