JP7464214B2

JP7464214B2 - Bottle Caps

Info

Publication number: JP7464214B2
Application number: JP2020024759A
Authority: JP
Inventors: 康仁河島
Original assignee: 株式会社フェイスアップ
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2024-04-09
Anticipated expiration: 2040-02-17
Also published as: JP2021127170A

Description

本発明は、ボトルキャップの技術に関し、より詳細には、ウォーターサーバー用液体容器の筒状口部に装着されて用いられ、筒状口部の開口端を覆う蓋部と、蓋部の開口部を閉塞する剥離部材とが設けられるボトルキャップに関する。 The present invention relates to bottle cap technology, and more specifically to a bottle cap that is attached to the cylindrical mouth of a liquid container for a water server and has a lid that covers the open end of the cylindrical mouth and a peel-off member that closes the opening of the lid.

近年、飲料水等の液体が充填された液体容器を連結し、注ぎ口から液体容器内の飲料水を取り出して提供するウォーターサーバーが提案されている。通常、この種のウォーターサーバーに連結される液体容器は、筒状口部にボトルキャップが装着された状態で使用され、ウォーターサーバーに液体容器を連結する際には、ウォーターサーバーの給水軸がボトルキャップを介して液体容器内に挿入され、液体容器内の飲料水が機外に漏出することなく給水軸を介して注ぎ口へと供給される。 In recent years, water servers have been proposed that connect a liquid container filled with a liquid such as drinking water and dispense the drinking water from the liquid container through a spout. Normally, the liquid container connected to this type of water server is used with a bottle cap attached to its cylindrical mouth, and when connecting the liquid container to the water server, the water supply shaft of the water server is inserted into the liquid container through the bottle cap, and the drinking water in the liquid container is supplied to the spout through the water supply shaft without leaking outside the machine.

従来のボトルキャップの構成としては、例えば、特許文献１に開示されるように、中央部にウォーターサーバーの給水軸が挿入される軸受部が形成され、筒状口部に水密状態で嵌合される内側部材と、軸受部の液体容器側の開口端に嵌脱可能に保持されるインナー部材と、内側部材が内部空間内に嵌合されて一体に組み付けられる外側部材等とが設けられている。かかる従来のボトルキャップでは、外側部材に筒状口部の開口端を覆う蓋部と、蓋部の開口部を閉塞する剥離部材とが設けられ、ウォーターサーバーに液体容器を連結する際には、蓋部より剥離部材を引き剥がして開口部を開口させて、内側部材の軸受部を外部に露出させるように構成されている。 As disclosed in Patent Document 1, for example, a conventional bottle cap is configured with a bearing part formed in the center into which the water supply shaft of the water server is inserted, an inner member that is fitted in a watertight manner into the cylindrical mouth, an inner member that is removably held in the open end of the bearing part on the liquid container side, and an outer member that is fitted into the internal space and assembled together with the inner member. In such a conventional bottle cap, the outer member is provided with a lid part that covers the open end of the cylindrical mouth, and a peel-off member that closes the opening of the lid part, and when connecting the liquid container to the water server, the peel-off member is peeled off from the lid part to open the opening, exposing the bearing part of the inner member to the outside.

しかしながら、上述した特許文献１に開示される従来のボトルキャップの構成では、蓋部の開口部と肉薄部を介して連続される剥離部材の下周縁が円形状に形成されていたため、剥離部材の引剥開始点において肉薄部を破断させるための剪断力が分散し、特に、剥離部材の引き剥しの開始時が硬く、使用者にて大きな引っ張り力を要し、蓋部より剥離部材を引き剥がして開口部を開口するための作業性が悪いという問題があった。 However, in the conventional bottle cap configuration disclosed in the above-mentioned Patent Document 1, the lower periphery of the peel-off member, which is connected to the opening of the lid through the thin portion, is formed in a circular shape. This means that the shear force required to break the thin portion at the start point of peeling the peel-off member is dispersed, and the peel-off member is particularly hard when it starts to be peeled off, requiring a large pulling force from the user, resulting in poor operability when peeling the peel-off member off the lid to open the opening.

特開２０１３－５６７０４号公報JP 2013-56704 A

そこで、本発明では、ボトルキャップに関し、前記従来の課題を解決するもので、剥離部材の引き剥がし開始時に要する引っ張り力を低減し、蓋部より剥離部材を容易に引き剥がして開口部を開口できるボトルキャップを提供することを目的とする。 The present invention aims to solve the above-mentioned problems with bottle caps by providing a bottle cap that reduces the pulling force required when starting to peel off the peeling member and allows the peeling member to be easily peeled off from the lid to open the opening.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。 The problem that the present invention aims to solve is as described above, and the means for solving this problem will be explained next.

すなわち、請求項１においては、ウォーターサーバー用液体容器の筒状口部に装着されて用いられ、前記筒状口部の開口端を覆う蓋部と、前記蓋部の開口部を閉塞する剥離部材とが設けられるボトルキャップにおいて、前記剥離部材は、一方端に幅狭突起部が突出され該幅狭突起部から幅拡大部を経て円形部へと連続する涙滴状に形成され、前記開口部の周縁と肉薄部を介して連続される本体部と、前記本体部に前記蓋部の上面に対して離間を有するようにして配設され、前記幅狭突起部の突出方向と同じ方向に向けて水平に突設される掴み部と、を有してなり、前記本体部の側面の内、前記掴み部の下面側に位置される前記幅狭突起部の突出方向側の側面、並びに前記幅狭突起部、前記幅拡大部及び前記円形部に形成される側面が、滑らかな連続面として形成され、下周縁から前記掴み部の下面に至るまで外側に向けて傾斜された傾斜面状に形成されるものである。 That is, in claim 1, a bottle cap is provided which is attached to the cylindrical mouth of a liquid container for a water server and which is provided with a lid which covers the open end of the cylindrical mouth and a peel-off member which closes the opening of the lid, the peel-off member having a main body which has a narrow protrusion protruding from one end and which is formed in a teardrop shape continuing from the narrow protrusion via an expanded width portion to a circular portion and which is connected to the periphery of the opening via a thin portion, and a gripping portion which is disposed on the main body so as to be spaced apart from the upper surface of the lid and which protrudes horizontally in the same direction as the protrusion of the narrow protrusion, and among the side surfaces of the main body, a side surface on the protruding direction side of the narrow protrusion which is located on the underside of the gripping portion, as well as side surfaces formed on the narrow protrusion, the expanded width portion and the circular portion are formed as smooth continuous surfaces and are formed as inclined surfaces which are inclined outward from the lower periphery to the underside of the gripping portion.

請求項２においては、ウォーターサーバー用液体容器の筒状口部に装着されて用いられ、前記筒状口部の開口端を覆う蓋部と、前記蓋部の開口部を閉塞する剥離部材とが設けられるボトルキャップにおいて、前記剥離部材は、一方端に幅狭突起部が突出される涙滴状に形成され、前記開口部の周縁と肉薄部を介して連続される本体部と、前記本体部に前記蓋部の上面に対して離間を有するようにして配設され、前記幅狭突起部の突出方向と同じ方向に向けて水平に突設される掴み部と、を有してなり、前記本体部の側面の内、前記掴み部の下面側に位置される前記幅狭突起部の突出方向側の側面を含む側面が下周縁から前記掴み部の縁部に至るまで外側に向けて傾斜された傾斜面状に形成されるものである。 In claim 2, a bottle cap is provided which is attached to the cylindrical mouth of a liquid container for a water server and which is provided with a lid which covers the open end of the cylindrical mouth and a peel-off member which closes the opening of the lid, the peel-off member having a teardrop-shaped main body with a narrow protrusion protruding from one end and which is continuous with the periphery of the opening via a thin portion, and a gripping portion which is disposed on the main body with a gap therebetween relative to the upper surface of the lid and which protrudes horizontally in the same direction as the protrusion of the narrow protrusion, and among the side surfaces of the main body, the side surface on the protruding direction side of the narrow protrusion which is located on the underside of the gripping portion is formed as an inclined surface which is inclined outward from the lower periphery to the edge of the gripping portion .

請求項３においては、前記本体部は、前記幅狭突起部の突出方向側の側面が前記掴み部の中心線に沿って傾斜されるものである。 In the third aspect , the side surface of the main body on the protruding direction side of the narrow protrusion is inclined along the center line of the gripping portion .

請求項４においては、前記本体部は、前記幅狭突起部の突出方向側の側面が直線状に傾斜されるものである。 In the fourth aspect , the side surface of the main body in the protruding direction of the narrow protrusion is inclined linearly .

本発明の効果として、剥離部材の引き剥がし開始時に要する引っ張り力を低減し、蓋部より剥離部材を容易に引き剥がして開口部を開口できる。 The effect of the present invention is that it reduces the pulling force required when starting to peel off the peel-off member, making it easy to peel the peel-off member off the lid and open the opening.

本発明の一実施例に係るボトルキャップの全体的な構成を示した斜視図である。1 is a perspective view showing an overall configuration of a bottle cap according to an embodiment of the present invention; ボトルキャップの平面図である。FIG. 図２におけるＡ－Ａ矢視断面図である。3 is a cross-sectional view taken along the line AA in FIG. 2. 図２におけるＢ－Ｂ矢視断面図である。3 is a cross-sectional view taken along the line BB in FIG. 2. 筒状口部にボトルキャップを装着した状態を示した断面図である。4 is a cross-sectional view showing a state in which a bottle cap is attached to a cylindrical mouth portion. FIG. 内側部材の軸孔内に給水軸を挿入した状態を示した断面図である。4 is a cross-sectional view showing a state in which a water supply shaft is inserted into a shaft hole of an inner member. FIG. 剥離部材の上方斜視図である。FIG. 剥離部材の下方斜視図である。FIG. 剥離部材の下方平面図である。FIG. 蓋部より剥離部材を引き剥がす状態を示した断面図である。11 is a cross-sectional view showing a state in which the peeling member is peeled off from the lid portion. FIG. 別実施例の剥離部材の下方斜視図である。FIG. 11 is a bottom perspective view of a peeling member according to another embodiment. 別実施例の剥離部材の下方斜視図である。FIG. 11 is a bottom perspective view of a peeling member according to another embodiment.

次に、発明を実施するための形態を説明する。なお、以下の実施例では、図３等の矢印Ｘ方向をボトルキャップ１の上下方向とする。 Next, a description will be given of an embodiment of the invention. In the following embodiment, the direction of the arrow X in FIG. 3 etc. corresponds to the up-down direction of the bottle cap 1.

図１乃至図６に示すように、本本実施例のボトルキャップ１は、ウォーターサーバー用液体容器の筒状口部１０に装着されるキャップ部材であって、一例として、中央部にウォーターサーバーの給水軸１１が挿入される軸受部２０が形成され、筒状口部１０に水密状態で嵌合される内側部材２と、軸受部２０の液体容器側の開口端に嵌脱可能に保持されるインナー部材３と、内側部材２が内部空間内に嵌合されて一体に組み付けられる外側部材４等とで構成されている。 As shown in Figures 1 to 6, the bottle cap 1 of this embodiment is a cap member that is attached to the cylindrical mouth 10 of a liquid container for a water server, and as an example, is formed with a bearing portion 20 in the center into which the water supply shaft 11 of the water server is inserted, and is composed of an inner member 2 that is fitted into the cylindrical mouth 10 in a watertight manner, an inner member 3 that is removably held at the open end of the bearing portion 20 on the liquid container side, and an outer member 4 that is fitted into the internal space of the inner member 2 and assembled together.

筒状口部１０は、飲料水等の液体が充填されたカートリッジ容器として構成される液体容器（図略）の一側に突出されており、筒状口部１０にボトルキャップ１を装着した状態でウォーターサーバーに液体容器が連結される（図６参照）。筒状口部１０の開口端は、緩やかなＲ形状に面取りされ、外周側より径方向に突出された突起部１２が形成されており、筒状口部１０にボトルキャップ１が容易に装着できるように構成されている。 The cylindrical mouth 10 protrudes from one side of a liquid container (not shown) configured as a cartridge container filled with a liquid such as drinking water, and the liquid container is connected to a water server with a bottle cap 1 attached to the cylindrical mouth 10 (see FIG. 6). The open end of the cylindrical mouth 10 is chamfered into a gentle R shape, and a protrusion 12 is formed that protrudes radially from the outer periphery, so that the bottle cap 1 can be easily attached to the cylindrical mouth 10.

内側部材２は、断面円形の筒状に肉薄形成された軸受部２０と、軸受部２０の縁部に形成される周縁鍔部２１と、周縁鍔部２１の周縁部に形成される外縁２２とが一体形成されている。内側部材２は、軸受部２０の一方（図３の上方）の給水挿入側の開口端側に周縁鍔部２１及び外縁部２２が形成され、軸受部２０の他方（図３の下方）の液体容器側の開口端側にインナー部材３が密接状態で嵌脱可能に保持されている。 The inner member 2 is integrally formed with a bearing portion 20 formed into a thin cylindrical shape with a circular cross section, a peripheral flange portion 21 formed on the edge of the bearing portion 20, and an outer edge 22 formed on the peripheral edge of the peripheral flange portion 21. The inner member 2 has the peripheral flange portion 21 and the outer edge portion 22 formed on the open end side of the water supply insertion side of one side of the bearing portion 20 (upper side in Figure 3), and the inner member 3 is held in a tightly fitted and detachable state on the open end side of the other side of the bearing portion 20 (lower side in Figure 3) on the liquid container side.

軸受部２０は、筒状の内部に給水軸１１が挿入される軸孔２０ａが形成され、軸受部２０の液体容器側の開口端の内周面にインナー部材３と係合可能に突設される係合部２０ｂが突設され、液体容器側の開口端の内径が給水軸１１の外径よりも小さくなるように形成されている。このように軸受部２０の内周面に係合部２０ｂが形成されることで、軸受部２０の開口端に挿入されたインナー部材３（の止水リブ３１）が水密状態で嵌合されてインナー部材３が止水保持されるとともに、ウォーターサーバーに液体容器を連結する際に軸受部２０に挿入された給水軸１１が圧接されて給水軸１１が止水保持される（図６参照）。 The bearing 20 has a cylindrical interior with an axial hole 20a into which the water supply shaft 11 is inserted, and an engagement portion 20b that is protruding from the inner circumferential surface of the open end of the bearing 20 on the liquid container side so as to be able to engage with the inner member 3, and is formed so that the inner diameter of the open end on the liquid container side is smaller than the outer diameter of the water supply shaft 11. By forming the engagement portion 20b on the inner circumferential surface of the bearing 20 in this manner, the inner member 3 (water-stopping rib 31) inserted into the open end of the bearing 20 is fitted in a watertight state to keep the inner member 3 watertight, and when the liquid container is connected to the water server, the water supply shaft 11 inserted into the bearing 20 is pressed against the bearing 20 to keep the water supply shaft 11 watertight (see FIG. 6).

周縁鍔部２１は、軸受部２０と同一円心の断面略円形に形成され、軸受部２０の外周面から円周方向に沿って延出される周壁部２３と連設されるとともに、軸受部２０の側面に径方向に沿って突設される複数の補強リブ２４・２４・・・と連設されている。また、周縁鍔部２１は、外周面に止水リブ２５が円周方向に沿って形成され、給水軸挿入側の周縁部に外縁部２２が径方向に突設されている。 The peripheral flange 21 is formed in a generally circular cross section with the same center as the bearing 20, and is connected to a peripheral wall 23 extending in the circumferential direction from the outer circumferential surface of the bearing 20, and is connected to a number of reinforcing ribs 24, 24... that protrude radially from the side surface of the bearing 20. In addition, the peripheral flange 21 has a water-stopping rib 25 formed in the circumferential direction on the outer circumferential surface, and an outer edge 22 protruding radially from the peripheral portion on the water supply shaft insertion side.

周縁鍔部２１は、肉厚箇所に円周方向に沿って上方に開口された凹状溝２６が穿設されており、内側部材２及び外側部材４が一体に組み付けられた状態（図３等参照）で、外側部材４の蓋部４１に設けられた突起部４１ａが凹状溝２６に係合される。このように蓋部４１と係合される凹状溝２６が設けられることで、液体容器の筒状口部１０にボトルキャップ１を装着した状態で（図５参照）、筒状口部１０の開口端（突起部１２）にて周縁鍔部２１が押圧されても、凹状溝２６が突起部４１ａと係合されることで周縁鍔部２１が中心方向に向けて変形するのを防止することができる。 The peripheral flange 21 has a concave groove 26 that opens upward along the circumferential direction in a thick portion, and when the inner member 2 and the outer member 4 are assembled together (see FIG. 3, etc.), the protrusion 41a on the lid 41 of the outer member 4 engages with the concave groove 26. By providing the concave groove 26 that engages with the lid 41 in this manner, even if the peripheral flange 21 is pressed by the open end (protrusion 12) of the cylindrical mouth 10 when the bottle cap 1 is attached to the cylindrical mouth 10 of the liquid container (see FIG. 5), the concave groove 26 engages with the protrusion 41a, preventing the peripheral flange 21 from deforming toward the center.

インナー部材３は、軸受部２０の液体容器側の開口端を塞ぐようにして水密状態で嵌脱可能に保持され、有底筒状の本体部３０の外周面に止水リブ３１が円周方向に沿って延出されている。本体部３０は、軸受部２０の内部方向に向けて開口され、開口端が径方向内側に向けて屈曲されて、給水軸１１の先端に形成される凹状部と係合可能に形成されている。また、止水リブ３１は、軸受部２０の液体容器側の開口端にインナー部材３が保持された状態で軸受部２０の内周面に圧接される。 The inner member 3 is held removably in a watertight state so as to close the open end of the bearing part 20 on the liquid container side, and a water-stopping rib 31 extends circumferentially on the outer circumferential surface of the bottomed cylindrical main body part 30. The main body part 30 opens toward the inside of the bearing part 20, and the open end is bent radially inward so as to be able to engage with a recessed portion formed at the tip of the water supply shaft 11. The water-stopping rib 31 is pressed against the inner circumferential surface of the bearing part 20 with the inner member 3 held at the open end of the bearing part 20 on the liquid container side.

図６に示すように、ウォーターサーバーに液体容器を連結する際には、ウォーターサーバーの上方より筒状口部１０の開口端（突起部１２）に予めボトルキャップ１が装着された液体容器を下動させて、外部に露出している軸受部２０より軸孔２０ａ内に給水軸１１を挿入させる。そして、液体容器の下動に伴って給水軸１１の先端部がインナー部材３の開口端に嵌挿されて給水軸１１とインナー部材３とが一体とされ、やがて、軸受部２０の液体容器側の開口端より給水軸１１の先端が突出される。 As shown in FIG. 6, when connecting a liquid container to the water server, the liquid container, with the bottle cap 1 already attached to the open end (projection 12) of the cylindrical mouth 10, is moved downward from above the water server, and the water supply shaft 11 is inserted into the shaft hole 20a through the bearing 20 exposed to the outside. As the liquid container is moved downward, the tip of the water supply shaft 11 is inserted into the open end of the inner member 3, and the water supply shaft 11 and the inner member 3 are integrated, and eventually the tip of the water supply shaft 11 protrudes from the open end of the bearing 20 on the liquid container side.

外側部材４は、断面円形の筒状に肉薄形成されたスカート部４０と、スカート部４０の一端と連続して筒状口部１０の開口端を塞ぐ蓋部４１と、蓋部４１の中央部に開口された開口部４２を閉塞する剥離部材４３とが一体成形され、全体として有天筒状となるように構成されている。 The outer member 4 is integrally formed with a skirt portion 40 that is thinly formed into a cylindrical shape with a circular cross section, a lid portion 41 that is continuous with one end of the skirt portion 40 and closes the open end of the cylindrical mouth portion 10, and a peeling member 43 that closes an opening 42 opened in the center of the lid portion 41, and is configured to have a topped cylindrical shape as a whole.

スカート部４０は、内周面に蓋部４１との連続箇所であるコーナー箇所に内側部材２（の外縁部２２）が嵌合される係止凹部４４が円周方向に沿って形成され、係止凹部４４の隣接位置に筒状口部１０の突起部１２が嵌合される装着凹部４５が同じく周方向に沿って形成されている。本実施例のボトルキャップ１は、外側部材４のスカート部４０の下方開口端より内側部材２が内部空間内に挿入され、係止凹部４４に内側部材２の外縁部２２が密接嵌合されることで、内側部材２及び外側部材４が一体に組み付けられる（図３等参照）。 The skirt portion 40 has locking recesses 44 formed along the circumferential direction on its inner circumferential surface at corners where the skirt portion 40 joins with the lid portion 41, into which the inner member 2 (outer edge portion 22) fits, and a mounting recess 45 is formed along the circumferential direction at a position adjacent to the locking recess 44, into which the protrusion 12 of the cylindrical mouth portion 10 fits. In this embodiment, the bottle cap 1 is assembled integrally by inserting the inner member 2 into the internal space from the lower opening end of the skirt portion 40 of the outer member 4, and fitting the outer edge portion 22 of the inner member 2 closely into the locking recess 44 (see FIG. 3, etc.).

蓋部４１は、中央部にウォーターサーバーの給水軸１１が挿通される開口部４２が開口され、開口部４２を上方より塞ぐようにして剥離部材４３が設けられている。開口部４２は、軸受部２０の開口端の口径よりも大きく開口されており、内側部材２及び外側部材４が一体に組み付けられた状態で蓋部４１より剥離部材４３が引き剥がされることで、開口部４２を介して内側部材２の軸受部２０が外部に露出される（後述する図１０等参照）。 The lid 41 has an opening 42 in the center through which the water supply shaft 11 of the water server is inserted, and a peeling member 43 is provided to close the opening 42 from above. The opening 42 is opened to a larger diameter than the opening end of the bearing 20, and when the peeling member 43 is peeled off the lid 41 with the inner member 2 and the outer member 4 assembled together, the bearing 20 of the inner member 2 is exposed to the outside through the opening 42 (see FIG. 10, etc., described later).

液体容器の筒状口部１０にボトルキャップ１を装着した状態（図５及び図６参照）では、筒状口部１０の開口端（突起部１２）が内側部材２の周縁鍔部２１の外周面と外側部材４のスカート部４０の内周面との離間に挿入されて、外側部材４の装着凹部４５に嵌合される。その際、筒状口部１０の開口端（突起部１２）の形状に合わせてスカート部４０が弾性変形されるとともに、周縁鍔部２１の外周面に設けられた止水リブ２５が筒状口部１０の内周面に圧接されることで、周縁鍔部２１の外周面とスカート部４０の内周面とで筒状口部１０が挟圧され、筒状口部１０にボトルキャップ１が水密状態で嵌合される。 When the bottle cap 1 is attached to the cylindrical mouth 10 of the liquid container (see Figures 5 and 6), the opening end (projection 12) of the cylindrical mouth 10 is inserted between the outer peripheral surface of the peripheral flange 21 of the inner member 2 and the inner peripheral surface of the skirt portion 40 of the outer member 4, and is fitted into the mounting recess 45 of the outer member 4. At that time, the skirt portion 40 is elastically deformed to match the shape of the opening end (projection 12) of the cylindrical mouth 10, and the water-stopping rib 25 provided on the outer peripheral surface of the peripheral flange 21 is pressed against the inner peripheral surface of the cylindrical mouth 10, so that the cylindrical mouth 10 is sandwiched between the outer peripheral surface of the peripheral flange 21 and the inner peripheral surface of the skirt portion 40, and the bottle cap 1 is fitted into the cylindrical mouth 10 in a watertight state.

図１乃至図４及び図７乃至１０に示すように、剥離部材４３は、蓋部４１に対して剥離容易に一体成形され、開口部４２の周縁と肉薄部４６を介して連続される本体部４７と、本体部４７より蓋部４１の上面に対して離間を有して水平に突設される平板状の掴み部４８等とで構成されており、剥離部材４３が引き剥がし方向Ｐに沿って捲り上げられることで肉薄部４６が破断されて、蓋部４１より引き剥がされる。 As shown in Figures 1 to 4 and 7 to 10, the peeling member 43 is integrally molded with the lid 41 so as to be easily peeled off, and is composed of a main body 47 that is continuous with the periphery of the opening 42 via a thin portion 46, and a flat gripping portion 48 that protrudes horizontally from the main body 47 and is spaced apart from the upper surface of the lid 41. When the peeling member 43 is rolled up along the peeling direction P, the thin portion 46 breaks and the peeling member 43 is peeled off from the lid 41.

本体部４７は、一方端が幅狭となるように突出される涙滴状に形成され、具体的には、一方端に幅狭の幅狭突起部４７ａを有し、幅狭突起部４７ａから徐々に幅広となる幅拡大部４７ｂを経て、略中間から他方端にかけて円形状の円形部４７ｃへと連続する形状に形成されている。本実施例の剥離部材４３は、一方端である幅狭突起部４７ａの突出方向の端部が剥離部材４３の引剥開始点Ｐ１となり、他方端である円形部４７ｃの端部が剥離部材４３の引剥終了点Ｐ２となる（図２及び図９等参照）。 The main body 47 is formed in a teardrop shape with one end protruding to be narrower. Specifically, it has a narrow protrusion 47a at one end, and is formed in a shape that continues from the narrow protrusion 47a through a gradually wider width expansion section 47b to a circular section 47c from approximately the middle to the other end. In this embodiment, the end of the protruding direction of the narrow protrusion 47a at one end of the peeling member 43 is the peel start point P1 of the peeling member 43, and the end of the circular section 47c at the other end is the peel end point P2 of the peeling member 43 (see Figures 2 and 9, etc.).

本体部４７は、底面形状が開口部４２と略相似形となるように形成されており、開口部４２の上周縁と本体部４７の下周縁とが肉薄部４６を介して連続されている。肉薄部４６は、蓋部４１よりも肉薄に形成され、蓋部４１より剥離部材４３を引き剥がす際に破断されて、開口部４２の上周縁より本体部４７の下周縁が引き剥がされる。 The body 47 is formed so that the bottom shape is approximately similar to the opening 42, and the upper periphery of the opening 42 and the lower periphery of the body 47 are continuous via the thin portion 46. The thin portion 46 is formed to be thinner than the lid 41, and is broken when the peeling member 43 is peeled off from the lid 41, and the lower periphery of the body 47 is peeled off from the upper periphery of the opening 42.

掴み部４８は、平板状に形成され、本体部４７の上縁部より蓋部４１の上面に対して離間を有するようにして配設され、本体部４７に対して幅狭突起部４７ａの突出方向と同じ方向に向けて水平に突設されている。本実施例の剥離部材４３は、掴み部４８の中心線ＣＬ上に幅狭突起部４７ａが位置するように構成されており、掴み部４８の中心線ＣＬに沿って上述した剥離部材４３の引剥開始点Ｐ１及び引剥終了点Ｐ２が直線上に位置されている（図２及び図９等参照）。 The gripping portion 48 is formed in a flat plate shape and is disposed so as to be spaced from the upper edge of the main body portion 47 to the upper surface of the lid portion 41, and is horizontally protruded from the main body portion 47 in the same direction as the protruding direction of the narrow protrusion portion 47a. The peeling member 43 in this embodiment is configured so that the narrow protrusion portion 47a is located on the center line CL of the gripping portion 48, and the peeling start point P1 and peeling end point P2 of the peeling member 43 described above are located on a straight line along the center line CL of the gripping portion 48 (see Figures 2 and 9, etc.).

掴み部４８は、本体部４７に対して幅狭突起部４７ａ、幅拡大部４７ｂ及び円形部４７ｃの一部を上方より覆うように配設されており、本体部４７の幅狭突起部４７ａの突出方向側の端面に形成される側面４７ｄと、連続面として幅狭突起部４７ａに形成される側面４７ｅ、幅拡大部４７ｂに形成される側面４７ｆ及び円形部４７ｃに形成される側面４７ｇの一部が掴み部４８の下面側に位置されている。 The gripping portion 48 is disposed on the main body 47 so as to cover the narrow protrusion 47a, the widened portion 47b, and a part of the circular portion 47c from above, and the side surface 47d formed on the end surface of the narrow protrusion 47a of the main body 47 in the protruding direction, the side surface 47e formed on the narrow protrusion 47a as a continuous surface, the side surface 47f formed on the widened portion 47b, and a part of the side surface 47g formed on the circular portion 47c are positioned on the underside of the gripping portion 48.

本実施例の剥離部材４３は、掴み部４８の下面側に位置される本体部４７の各側面４７ｄ・４７ｅ・４７ｆ・４７ｇの内、少なくとも幅狭突起部４９の突出方向側の側面４７ｄが本体部４７の下周縁から掴み部４８の下面に至るまで垂直な方向から外側に向けて傾斜された傾斜面状に形成されている。本実施例の側面４７ｄは、掴み部４８の中心線ＣＬに沿って直線状に延出され、傾斜角が一定の直線面となるように形成されている。また、本実施例では、側面４７ｄは、掴み部４８の縁部に至らない箇所まで延出され、掴み部４８の突出端が弾性変形して上方に捲り上げられ易いように形成されている。 In the present embodiment, the peeling member 43 is formed such that, of the side surfaces 47d, 47e, 47f, and 47g of the main body 47 located on the underside of the gripping portion 48, at least the side surface 47d on the protruding direction side of the narrow protrusion 49 is formed as an inclined surface that is inclined outward from the vertical direction from the lower periphery of the main body 47 to the underside of the gripping portion 48. The side surface 47d in this embodiment extends linearly along the center line CL of the gripping portion 48, and is formed so as to form a linear surface with a constant inclination angle. Also, in this embodiment, the side surface 47d extends to a point that does not reach the edge of the gripping portion 48, and is formed so that the protruding end of the gripping portion 48 is easily elastically deformed and rolled up upward.

なお、他の側面４７ｅ・４７ｆ・４７ｇ（の一部）は掴み部４８の下面に対して略直角の垂直面状に形成されており、掴み部４８にて覆われない残りの側面４７ｇは、円形部４７ｃの形状に沿って上方に向けて縮径する傾斜面状に形成されている。 The other side surfaces 47e, 47f, and 47g (parts thereof) are formed as vertical surfaces that are approximately perpendicular to the underside of the gripping portion 48, and the remaining side surface 47g that is not covered by the gripping portion 48 is formed as an inclined surface that tapers upward in diameter to conform to the shape of the circular portion 47c.

図１０に示すように、蓋部４１より剥離部材４３を引き剥がす際には、掴み部４８の突出端が把持され、中心線ＣＬに沿って本体部４７に対する突出方向とは逆方向の引き剥がし方向Ｐに向けて引っ張られて捲り上げられる。剥離部材４３の引き剥しの開始時は、掴み部４８の突出端が弾性変形して上方に捲り上げられ（図１０（ａ）参照）、本体部４７の幅狭突起部４７ａの引剥開始点Ｐ１にて薄肉部４６が破断し始める。このとき、上方に捲り上げられた掴み部４８にて幅狭突起部４７ａの側面４７ｄを介して本体部４７が引っ張られることで、幅狭突起部４７ａの引剥開始点Ｐ１に引っ張り力による剪断力が集中し、使用者にて少ない力で蓋部４１より剥離部材４３を引き剥がし始めることができる。 As shown in FIG. 10, when peeling the peeling member 43 from the lid 41, the protruding end of the gripping portion 48 is grasped and pulled in the peeling direction P, which is the opposite direction to the protruding direction relative to the main body 47, along the center line CL and rolled up. When peeling of the peeling member 43 begins, the protruding end of the gripping portion 48 is elastically deformed and rolled up (see FIG. 10(a)), and the thin-walled portion 46 begins to break at the peeling start point P1 of the narrow protrusion 47a of the main body 47. At this time, the gripping portion 48 rolled up upward pulls the main body 47 via the side surface 47d of the narrow protrusion 47a, so that the shear force due to the pulling force is concentrated at the peeling start point P1 of the narrow protrusion 47a, and the user can begin to peel the peeling member 43 from the lid 41 with little force.

剥離部材４３が引き剥がし方向Ｐに向けて更に引っ張られて捲り上げられると、薄肉部４６の破断が幅狭突起部４７ａから幅拡大部４７ｂを経て円形部４７ｃへと進行する（図１０（ｂ）参照）。そして、肉薄部４６の破断の後半から終了に至る範囲、すなわち円形部４７ｃの引剥終了点Ｐ２に近接する部分において、掴み部４８を上方に引き上げながら円形部４７ｃの引剥終了点Ｐ２に引っ張り力による剪断力を集中させて、蓋部４１より剥離部材４３の引き離しが行われる（図１０（ｃ）参照）。 When the peeling member 43 is pulled further in the peeling direction P and rolled up, the fracture of the thin-walled portion 46 progresses from the narrow protrusion portion 47a through the widened portion 47b to the circular portion 47c (see FIG. 10(b)). Then, in the range from the latter half to the end of the fracture of the thin-walled portion 46, i.e., in the area close to the peeling end point P2 of the circular portion 47c, the gripping portion 48 is pulled upward to concentrate the shear force due to the pulling force on the peeling end point P2 of the circular portion 47c, and the peeling member 43 is peeled off from the lid portion 41 (see FIG. 10(c)).

以上のように、本実施例のボトルキャップ１は、ウォーターサーバー用液体容器の筒状口部１０に装着されて用いられ、筒状口部１０の開口端を覆う蓋部４１と、蓋部４１の開口部４２を閉塞する剥離部材４３とが設けられるボトルキャップ１において、剥離部材４３は、一方端に幅狭突起部４７ａが突出される涙滴状に形成され、開口部４２の周縁と肉薄部４６を介して連続される本体部４７と、本体部４７に蓋部４１の上面に対して離間を有するようにして配設され、幅狭突起部４７ａの突出方向と同じ方向に向けて水平に突設される掴み部４８と、を有してなり、本体部４７の側面の内、少なくとも幅狭突起部４７ａの突出方向側の側面４７ｄが下周縁から掴み部４８の下面に至るまで外側に向けて傾斜された傾斜面状に形成されるため、剥離部材４３の引き剥がし開始時に要する引っ張り力を低減し、蓋部４１より剥離部材４３を容易に引き剥がして開口部４２を開口できるのである。 As described above, the bottle cap 1 of this embodiment is used by being attached to the cylindrical mouth 10 of a liquid container for a water server, and the bottle cap 1 is provided with a lid portion 41 that covers the open end of the cylindrical mouth 10 and a peeling member 43 that closes the opening 42 of the lid portion 41. The peeling member 43 is formed in a teardrop shape with a narrow protrusion 47a protruding from one end, and has a main body portion 47 that is continuous with the periphery of the opening 42 via a thin portion 46, and the main body portion 47 is spaced from the upper surface of the lid portion 41. and a gripping portion 48 that protrudes horizontally in the same direction as the narrow protrusion 47a. At least the side surface 47d of the main body 47 on the protruding side of the narrow protrusion 47a is formed as an inclined surface that slopes outward from the lower periphery to the underside of the gripping portion 48, reducing the pulling force required when starting to peel off the peeling member 43, and allowing the peeling member 43 to be easily peeled off of the lid 41 to open the opening 42.

すなわち、本実施例の剥離部材４３は、本体部４７が一方端に幅狭突起部４７ａが突出される涙滴状に形成され、幅狭突起部４７ａの突出方向側の側面４７ｄが下周縁から掴み部４８の下面に至るまで外側に向けて傾斜された傾斜面状に形成されることで、剥離部材４３の引き剥しの開始時において、掴み部４８を介した引っ張り力による剪断力を幅狭突起部４７ａに集中させることができ、使用者にて少ない引っ張り力で薄肉部４６を容易に破断させ、蓋部４１より剥離部材４３を容易に引き剥がして、開口部４２を開口するための作業性を向上することができる。 In other words, in the peeling member 43 of this embodiment, the main body 47 is formed in a teardrop shape with a narrow protrusion 47a protruding from one end, and the side surface 47d on the protruding side of the narrow protrusion 47a is formed as an inclined surface that is inclined outward from the lower periphery to the underside of the gripping portion 48. This allows the shear force caused by the pulling force via the gripping portion 48 to be concentrated on the narrow protrusion 47a when starting to peel the peeling member 43, so that the user can easily break the thin portion 46 with little pulling force and easily peel the peeling member 43 from the lid portion 41, improving the workability of opening the opening 42.

特に、本実施例の本体部４７は、幅狭突起部４７ａの突出方向側の側面４７ｄが掴み部４８の中心線ＣＬに沿って傾斜されるため、掴み部４８が中心線ＣＬに沿って引き剥がし方向Ｐに向けて捲り上げられる際に、掴み部４８を介した引っ張り力による剪断力を幅狭突起部４７ａに集中させて、剥離部材４３の引き剥がし開始時に要する引っ張り力を低減し、薄肉部４６を容易に破断させることができる。 In particular, in the main body 47 of this embodiment, the side surface 47d on the protruding side of the narrow protrusion 47a is inclined along the center line CL of the gripping portion 48. As a result, when the gripping portion 48 is rolled up along the center line CL in the peeling direction P, the shear force due to the pulling force via the gripping portion 48 is concentrated on the narrow protrusion 47a, reducing the pulling force required when starting to peel off the peeling member 43, and allowing the thin-walled portion 46 to break easily.

また、本実施例の本体部４７は、幅狭突起部４７ａの突出方向側の側面４７ｄが直線状に傾斜されるため、掴み部４８が中心線ＣＬに沿って引き剥がし方向Ｐに向けて捲り上げられる際に、掴み部４８を介した引っ張り力による剪断力を幅狭突起部４７ａに集中させて、剥離部材４３の引き剥がし開始時に要する引っ張り力を低減し、薄肉部４６を容易に破断させることができる。 In addition, in the present embodiment, the side surface 47d of the main body 47 on the protruding side of the narrow protrusion 47a is inclined linearly, so that when the gripping portion 48 is rolled up along the center line CL in the peeling direction P, the shear force due to the pulling force via the gripping portion 48 is concentrated on the narrow protrusion 47a, reducing the pulling force required when starting to peel off the peeling member 43, and making it easier to break the thin-walled portion 46.

なお、ボトルキャップ１の構成としては、上述した実施例に限定されず、本発明の目的を逸脱しない限りにおいて種々の変更が可能である。 The configuration of the bottle cap 1 is not limited to the above-described embodiment, and various modifications are possible without departing from the scope of the present invention.

すなわち、上述した実施例のボトルキャップ１では、実施例の剥離部材４３は、掴み部４８の下面側に位置される本体部４７の各側面４７ｄ・４７ｅ・４７ｆ・４７ｇの内、側面４７ｄが本体部４７の下周縁から掴み部４８の下面に至るまで外側に向けて傾斜された傾斜面状に形成され、他の側面４７ｅ・４７ｆ・４７ｇ（の一部）は掴み部４８の下面に対して略直角の垂直面状に形成される構成について説明したが、かかる側面４７ｅ・４７ｆ・４７ｇの形状はこれに限定されず、少なくとも側面４７ｄが本体部４７の下周縁から掴み部４８の下面に至るまで外側に向けて傾斜された傾斜面状に形成されればよい。 That is, in the bottle cap 1 of the embodiment described above, the peeling member 43 of the embodiment is configured such that, of the side surfaces 47d, 47e, 47f, and 47g of the main body portion 47 located on the underside of the gripping portion 48, the side surface 47d is formed as an inclined surface inclined outward from the lower periphery of the main body portion 47 to the underside of the gripping portion 48, and the other side surfaces 47e, 47f, and 47g (parts of them) are formed as vertical surfaces approximately perpendicular to the underside of the gripping portion 48, but the shape of the side surfaces 47e, 47f, and 47g is not limited thereto, and it is sufficient that at least the side surface 47d is formed as an inclined surface inclined outward from the lower periphery of the main body portion 47 to the underside of the gripping portion 48.

例えば、図１１に示す別実施例のように、他の側面４７ｅ・４７ｆ・４７ｇ（の一部）も側面４７ｄと同様に、本体部４７の下周縁から掴み部４８の下面に至るまで傾斜して形成されてもよい。かかる場合には、側面４７ｄ・４７ｅ・４７ｆ・４７ｇは滑らかな連続面として形成されるが、上述した実施例と同様に、側面４７ｄは、掴み部４８の中心線ＣＬに沿って直線状に延出され、傾斜角が一定の直線面となるように形成されるのが好ましい。このように本体部４３において、掴み部４８の下面側にある側面４７ｄ・４７ｅ・４７ｆ・４７ｇが下周縁から掴み部４８の下面に至るまで傾斜して形成されることで、剥離部材４３の引き剥し中も、使用者にて少ない引っ張り力で薄肉部４６を容易に破断させることができる。 11, the other side surfaces 47e, 47f, and 47g (parts thereof) may be formed with an inclination from the lower periphery of the main body 47 to the lower surface of the gripping portion 48, similar to the side surface 47d. In such a case, the side surfaces 47d, 47e, 47f, and 47g are formed as smooth continuous surfaces, but as in the above-mentioned embodiment, the side surface 47d is preferably formed so that it extends linearly along the center line CL of the gripping portion 48 and has a constant inclination angle. In this way, the side surfaces 47d, 47e, 47f, and 47g on the lower surface side of the gripping portion 48 in the main body 43 are formed with an inclination from the lower periphery to the lower surface of the gripping portion 48, so that the user can easily break the thin-walled portion 46 with little pulling force even during the peeling member 43 being peeled off.

また、図１２に示す別実施例のように、掴み部４８の下面側に位置される本体部４７の各側面４７ｄ・４７ｅ・４７ｆ・４７ｇが下周縁から掴み部４８の縁部に至るまで傾斜して形成されてもよい。かかる場合には、側面４７ｄ・４７ｅ・４７ｆ・４７ｇは滑らかな連続面として形成されるが、上述した実施例と同様に、側面４７ｄは、掴み部４８の中心線ＣＬに沿って直線状に延出され、傾斜角が一定の直線面となるように形成されるのが好ましい。このように本体部４３において、掴み部４８の下面側にある側面４７ｄ・４７ｅ・４７ｆ・４７ｇが下周縁から掴み部４８の縁部に至るまで傾斜して形成されることで、剥離部材４３の引き剥し中も、使用者にて少ない引っ張り力で薄肉部４６を容易に破断させることができる。 As shown in FIG. 12, the side surfaces 47d, 47e, 47f, and 47g of the main body 47 located on the underside of the gripping portion 48 may be inclined from the lower periphery to the edge of the gripping portion 48. In this case, the side surfaces 47d, 47e, 47f, and 47g are formed as smooth continuous surfaces, but as in the above-mentioned embodiment, the side surface 47d is preferably formed to extend linearly along the center line CL of the gripping portion 48 and to be a linear surface with a constant inclination angle. In this way, the side surfaces 47d, 47e, 47f, and 47g on the underside of the gripping portion 48 of the main body 43 are inclined from the lower periphery to the edge of the gripping portion 48, so that the user can easily break the thin-walled portion 46 with little pulling force even during the peeling member 43 being peeled off.

１ボトルキャップ
２内側部材
３インナー部材
４外側部材
１０筒状口部
１１給水軸
１２突起部
２０軸受部
２０ａ軸孔
２０ｂ係合部
２１周縁鍔部
２２外縁部
２３周壁部
２４補強リブ
２５止水リブ
２６凹状溝
３０本体部
３１止水リブ
４０スカート部
４１蓋部
４１ａ突起部
４２開口部
４３剥離部材
４４係止凹部
４５装着凹部
４６肉薄部
４７本体部
４７ａ幅狭突起部
４７ｂ幅拡大部
４７ｃ円形部
４７ｄ側面
４７ｅ側面
４７ｆ側面
４７ｇ側面
４７ｈ側面
４８掴み部 LIST OF SYMBOLS 1 Bottle cap 2 Inner member 3 Inner member 4 Outer member 10 Cylindrical mouth 11 Water supply shaft 12 Projection 20 Bearing 20a Shaft hole 20b Engagement 21 Peripheral flange 22 Outer edge 23 Peripheral wall 24 Reinforcing rib 25 Water stop rib 26 Concave groove 30 Main body 31 Water stop rib 40 Skirt 41 Lid 41a Projection 42 Opening 43 Peeling member 44 Locking recess 45 Mounting recess 46 Thin portion 47 Main body 47a Narrow projection 47b Widened portion 47c Circular portion 47d Side 47e Side 47f Side 47g Side 47h Side 48 Grip

Claims

A bottle cap is attached to a cylindrical mouth of a liquid container for a water server, the bottle cap having a lid for covering an open end of the cylindrical mouth and a peelable member for closing an opening of the lid,
The peeling member is
a main body portion having a narrow protrusion at one end , the main body portion being formed in a teardrop shape continuing from the narrow protrusion portion through a widened portion to a circular portion , the main body portion being connected to a periphery of the opening portion through a thin portion;
a gripping portion disposed on the main body portion so as to be spaced from an upper surface of the lid portion and horizontally protruding in the same direction as the protruding direction of the narrow protrusion portion;
Among the side surfaces of the main body, the side surface on the protruding direction side of the narrow protrusion portion located on the lower surface side of the gripping portion, as well as the side surfaces formed on the narrow protrusion portion, the width expansion portion, and the circular portion are formed as smooth continuous surfaces, and are formed as inclined surfaces that are inclined outward from the lower peripheral edge to the lower surface of the gripping portion.
A bottle cap characterized by:

A bottle cap is attached to a cylindrical mouth of a liquid container for a water server, the bottle cap having a lid for covering an open end of the cylindrical mouth and a peelable member for closing an opening of the lid,
The peeling member is
a main body portion formed in a teardrop shape with a narrow protrusion portion protruding from one end thereof and connected to a periphery of the opening portion via a thin portion;
a gripping portion disposed on the main body portion so as to be spaced from an upper surface of the lid portion and horizontally protruding in the same direction as the protruding direction of the narrow protrusion portion;
Among the side surfaces of the main body, a side surface including a side surface on the protruding direction side of the narrow protrusion portion located on the lower surface side of the gripping portion is formed into an inclined surface inclined outward from a lower peripheral edge to an edge of the gripping portion.
A bottle cap characterized by:

3. The bottle cap according to claim 1 , wherein a side surface of the body portion facing the protruding direction of the narrow protrusion is inclined along a center line of the gripping portion.

The bottle cap according to claim 1 , wherein a side surface of the main body on a protruding direction side of the narrow protrusion is inclined linearly.