JP2022023727A

JP2022023727A - Integral type cap for bottle

Info

Publication number: JP2022023727A
Application number: JP2020126864A
Authority: JP
Inventors: 康洋河島; Yasuhiro Kawashima
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2022-02-08

Abstract

To provide an integral type cap for bottle capable of preventing leakage of drinking water in a liquid container at low cost.SOLUTION: An integral type cap 1 for bottle which is used being mounted on a cylindrical mouth part 10 of a liquid container for water server includes: a body part 2 inserted by being elastically deformed according to the shape of the cylindrical mouth part 10; a cylindrical bearing part 3 disposed at the central position of the body part 2; and a water stopping part 4 held at an opening end on the liquid container side of the bearing part 3, and formed integrally with the bearing part 3 via a thin wall part 33. By the water stopping part 4 being pressed at a water supply shaft 11 of a water server inserted in the bearing part 3, the thin wall part 33 breaks, and the water stopping part 4 is peeled from the bearing part 3.SELECTED DRAWING: Figure 4

Description

本発明は、ボトル用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して用いられるボトル用一体型キャップに関する。 The present invention relates to a technique for a bottle cap, and more particularly to a bottle integrated cap used by being attached to a tubular mouth portion of a liquid container for a water server.

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、筒状口部にボトル用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が連結される際には、ウォーターサーバーの給水軸がボトル用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, a water server has been proposed in which a liquid container filled with a liquid such as drinking water is connected and the drinking water in the liquid container is taken out from a spout and provided. Normally, a liquid container connected to this type of water server is used with a bottle cap attached to the tubular mouth, and when the liquid container is connected to the water server, the water supply shaft of the water server is used. Is inserted into the liquid container via the bottle cap, and the drinking water in the liquid container is supplied to the spout via the water supply shaft without leaking to the outside of the machine.

従来のボトル用キャップとしては、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筒状の軸受部が配設される本体部材と、軸受部の液体容器側の開口端に配設される止水部材等とで構成され、軸受部が筒状口部内に突出された状態で、本体部材の外縁が筒状口部の形状に合わせて弾性変形して筒状口部の外周側に固定される。そして、ウォーターサーバーに液体容器が連結される際には、給水軸の先端部が止水部材に嵌挿され、軸受部を介して給水軸が液体容器内に挿入される。一方、ウォーターサーバーより液体容器が取り外される際には、軸受部の液体容器側の開口端に止水部材が嵌合される。 As the conventional bottle cap, for example, as disclosed in Patent Document 1, a main body member in which a cylindrical bearing portion into which a water supply shaft of a water server is inserted is arranged in a central portion, and a liquid in the bearing portion. It is composed of a water blocking member and the like arranged at the opening end on the container side, and the outer edge of the main body member is elastically deformed according to the shape of the tubular mouth portion in a state where the bearing portion is projected into the tubular mouth portion. It is fixed to the outer peripheral side of the tubular mouth. When the liquid container is connected to the water server, the tip of the water supply shaft is fitted into the water stop member, and the water supply shaft is inserted into the liquid container via the bearing portion. On the other hand, when the liquid container is removed from the water server, the water stop member is fitted to the open end of the bearing portion on the liquid container side.

特開２０１７－１３２４７７号公報Japanese Unexamined Patent Publication No. 2017-132477

しかしながら、上述した従来のボトル用キャップは、本体部材（の軸受部）と止水部材とが別体に形成され、軸受部の液体容器側の開口端に止水部材が嵌合されて止水保持されるように構成されている。そのため、軸受部に対する止水部材の嵌合状態が不十分であると、止水部材が自重にて液体容器内に落下したり、液体容器内の飲料水が隙間から漏出したりしてしまう場合があった。また、本体部材（の軸受部）に別体の止水部材を嵌合するための作業工程が必要となり、ボトル用キャップを製造する際のコスト低減を阻害する要因となっていた。 However, in the above-mentioned conventional bottle cap, the main body member (bearing portion) and the water blocking member are formed separately, and the water blocking member is fitted to the opening end of the bearing portion on the liquid container side to stop water. It is configured to be retained. Therefore, if the water-stopping member is not sufficiently fitted to the bearing portion, the water-stopping member may fall into the liquid container due to its own weight, or the drinking water in the liquid container may leak from the gap. was there. In addition, a work process for fitting a separate water blocking member to the main body member (bearing portion) is required, which is a factor that hinders cost reduction when manufacturing a bottle cap.

そこで、本発明では、ボトル用キャップに関し、前記従来の課題を解決するもので、低廉なコストで液体容器内の飲料水の漏出を防止できるボトル用一体型キャップを提供することを目的とする。 Therefore, it is an object of the present invention to solve the above-mentioned conventional problems with respect to a bottle cap, and to provide an integrated bottle cap capable of preventing leakage of drinking water in a liquid container at a low cost.

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。ウォーターサーバー用液体容器の筒状口部に装着して用いられるボトル用一体型キャップであって、前記筒状口部の形状に合わせて弾性変形して挿着される本体部と、前記本体部の中心位置に配設される筒状の軸受部と、前記軸受部の液体容器側の開口端に保持され、前記軸受部と薄肉部を介して一体に形成される止水部と、を有してなり、前記軸受部に挿入されたウォーターサーバーの給水軸にて前記止水部が押圧されることで前記薄肉部が破断し、前記軸受部より前記止水部が引き剥がされるものである。 The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described. An integrated cap for bottles that is attached to the tubular mouth of a liquid container for a water server, and has a main body that is elastically deformed and inserted according to the shape of the tubular mouth, and the main body. It has a tubular bearing portion arranged at the center position of the bearing portion and a water blocking portion held at the opening end of the bearing portion on the liquid container side and integrally formed via the bearing portion and the thin-walled portion. Then, when the water stop portion is pressed by the water supply shaft of the water server inserted into the bearing portion, the thin wall portion is broken and the water stop portion is peeled off from the bearing portion. ..

請求項２においては、前記薄肉部は、前記軸受部の液体容器側の開口端の内周縁部に形成された面取り部の起点と前記止水部の筒状開口端との間に形成されるものである。 In claim 2, the thin-walled portion is formed between the starting point of the chamfered portion formed on the inner peripheral edge of the opening end on the liquid container side of the bearing portion and the tubular opening end of the water blocking portion. It is a thing.

請求項３においては、前記軸受部は、内周面に前記止水部と係合可能に突出される係合突起部が設けられるものである。 In claim 3, the bearing portion is provided with an engaging protrusion portion on the inner peripheral surface thereof that protrudes so as to be engaged with the water blocking portion.

請求項４においては、前記止水部は、筒状開口端に前記給水軸の先端と係合可能に突出される保持突起部が設けられるものである。 In claim 4, the water stop portion is provided with a holding protrusion portion that protrudes so as to be engaged with the tip of the water supply shaft at the cylindrical opening end.

本発明の効果として、低廉なコストで液体容器内の飲料水の漏出を防止できる。 As an effect of the present invention, it is possible to prevent the leakage of drinking water in the liquid container at a low cost.

本発明の一実施例に係るボトル用一体型キャップの全体的な構成を示した斜視図である。It is a perspective view which showed the overall structure of the integrated cap for a bottle which concerns on one Embodiment of this invention. ボトル用一体型キャップの断面図である。It is sectional drawing of the integrated cap for a bottle. 図２のボトル用一体型キャップの一部拡大断面図である。It is a partially enlarged sectional view of the integrated cap for a bottle of FIG. 筒状口部にボトル用一体型キャップが装着された状態を示した断面図である。It is sectional drawing which showed the state which the integrated cap for a bottle is attached to the tubular mouth part. ウォーターサーバーに液体容器が連結された状態を示した断面図である。It is sectional drawing which showed the state which the liquid container was connected to the water server. ウォーターサーバーより液体容器が取り外された状態を示した断面図である。It is sectional drawing which showed the state which the liquid container was removed from the water server.

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、矢印Ｘ方向をボトルキャップの上下方向とする。 Next, a mode for carrying out the invention will be described. In the following embodiment, the arrow X direction is the vertical direction of the bottle cap.

図１乃至図４に示すように、本実施例のボトル用一体型キャップ１は、ウォーターサーバー用液体容器の筒状口部１０に着脱可能に装着されるキャップ部材であって、具体的には、筒状口部１０の形状に合わせて弾性変形して挿着される本体部２と、本体部２の中心位置に配設される筒状の軸受部３と、軸受部３の液体容器側の開口端に保持される止水部４等とで構成されている。なお、本実施例のボトル用一体型キャップ１は、本体部２、軸受部３及び止水部４が一体形成されている。 As shown in FIGS. 1 to 4, the bottle-integrated cap 1 of the present embodiment is a cap member that is detachably attached to the tubular mouth portion 10 of the liquid container for a water server, and specifically, , The main body 2 that is elastically deformed and inserted according to the shape of the tubular mouth 10, the tubular bearing 3 disposed at the center position of the main body 2, and the liquid container side of the bearing 3. It is composed of a water stop portion 4 and the like held at the open end of the above. In the bottle-integrated cap 1 of this embodiment, the main body portion 2, the bearing portion 3, and the water stop portion 4 are integrally formed.

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にボトル用一体型キャップ１が装着された状態でウォーターサーバーに液体容器が連結される。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にボトル用一体型キャップ１が容易に装着できるように構成されている。突起部１２は、筒状口部１０にボトル用一体型キャップ１が装着された状態で、後述する本体部２に形成される装着凹部２１ａと嵌合される。 The tubular mouth portion 10 projects to one side of a liquid container (not shown) configured as a cartridge container filled with a liquid such as drinking water, and the tubular mouth portion 10 has an integrated cap 1 for a bottle. The liquid container is connected to the water server in the mounted state. The open end of the tubular mouth portion 10 is chamfered into a gentle R shape, and a protrusion 12 protruding in the radial direction from the outer peripheral side is formed, so that the integrated cap 1 for a bottle can be easily attached to the tubular mouth portion 10. It is configured to be attached to. The protrusion 12 is fitted with a mounting recess 21a formed in the main body 2, which will be described later, with the bottle-integrated cap 1 mounted on the tubular mouth 10.

本体部２は、天面を形成する天面部２０と、天面部２０の周縁に形成される外縁部２１と、天面部２０よりボトル用一体型キャップ１の上下方向（図２の矢印Ｘ方向）に沿って立設される内縁部２２等とが一体形成されて構成されている。天面部２０には、軸受部３の開口部を塞ぐための図示せぬラベル部材が貼付されて用いられる。 The main body portion 2 has a top surface portion 20 forming a top surface, an outer edge portion 21 formed on the peripheral edge of the top surface portion 20, and a bottle-integrated cap 1 in the vertical direction (arrow X direction in FIG. 2) from the top surface portion 20. The inner edge portion 22 and the like erected along the above are integrally formed and configured. A label member (not shown) for closing the opening of the bearing portion 3 is attached to the top surface portion 20 and used.

外縁部２１は、天面部２０の周縁と連続されて断面円形の筒状に薄肉形成され、内周面に筒状口部１０の突起部１２が嵌合される装着凹部２１ａが円周方向に沿って形成されており、筒状口部１０にボトル用一体型キャップ１が装着された状態（図４参照）では、筒状口部１０の形状に合わせて弾性変形して外周面に密着されている。 The outer edge portion 21 is formed thinly in a cylindrical shape having a circular cross section continuous with the peripheral edge of the top surface portion 20, and the mounting recess 21a into which the protrusion 12 of the tubular mouth portion 10 is fitted to the inner peripheral surface is in the circumferential direction. It is formed along the same direction, and when the integrated cap 1 for a bottle is attached to the tubular mouth portion 10 (see FIG. 4), it is elastically deformed according to the shape of the tubular mouth portion 10 and is brought into close contact with the outer peripheral surface. ing.

内縁部２２は、天面部２０と連続されて外縁部２２と同一円心の断面円形の筒状に立設され、外周面に止水リブ２２ａが円周方向に沿って形成されている。このように外縁部２１及び内縁部２２が形成されることで、筒状口部１０にボトル用一体型キャップ１が装着された状態（図４参照）では、筒状口部１０の開口端（突起部１２）が外縁部２１の内周面と内縁部２２の外周面との離間に挿入されて装着凹部２１ａに嵌合される。その際、筒状口部１０の開口端（の突起部１２）の形状に合わせて外縁部２１が弾性変形されるとともに、内縁部２２の止水リブ２２ａが筒状口部１０の内周面に圧接されることで、外縁部２１の内周面と内縁部２２の外周面とで筒状口部１０が挟圧され、筒状口部１０に本体部材２が水密状態で装着される。 The inner edge portion 22 is continuously erected from the top surface portion 20 in a cylindrical shape having a circular cross section having the same center as the outer edge portion 22, and a water blocking rib 22a is formed on the outer peripheral surface along the circumferential direction. By forming the outer edge portion 21 and the inner edge portion 22 in this way, in a state where the bottle-integrated cap 1 is attached to the tubular mouth portion 10 (see FIG. 4), the open end of the tubular mouth portion 10 (see FIG. 4). The protrusion 12) is inserted at a distance between the inner peripheral surface of the outer edge portion 21 and the outer peripheral surface of the inner edge portion 22 and fitted into the mounting recess 21a. At that time, the outer edge portion 21 is elastically deformed according to the shape of the open end (projection portion 12) of the tubular mouth portion 10, and the waterproof rib 22a of the inner edge portion 22 is formed on the inner peripheral surface of the tubular mouth portion 10. The tubular mouth portion 10 is sandwiched between the inner peripheral surface of the outer edge portion 21 and the outer peripheral surface of the inner edge portion 22, and the main body member 2 is attached to the tubular mouth portion 10 in a watertight state.

軸受部３は、天面部２０の中央位置に配設され、本実施例のボトル用一体型キャップ１では本体部２と一体形成されている。軸受部３は、筒状の内部に給水軸１１が挿入される軸孔３０が形成され、天面側（以下、「給水軸挿入側」という）及びその反対側（以下、「液体容器側」という）が開口されている。軸受部３の液体容器側の開口端（図２の下方側）には、後述する止水部４が保持されており、止水部４（及び薄肉部３３）により軸孔３０が閉止されている。 The bearing portion 3 is arranged at the center position of the top surface portion 20, and is integrally formed with the main body portion 2 in the bottle-integrated cap 1 of the present embodiment. In the bearing portion 3, a shaft hole 30 into which the water supply shaft 11 is inserted is formed inside the cylindrical shape, and the top surface side (hereinafter referred to as “water supply shaft insertion side”) and the opposite side thereof (hereinafter referred to as “liquid container side””. ) Is open. A water stop portion 4, which will be described later, is held at the open end (lower side in FIG. 2) of the bearing portion 3 on the liquid container side, and the shaft hole 30 is closed by the water stop portion 4 (and the thin-walled portion 33). There is.

軸受部３の内周面には、止水部４と係合可能に突出される係合突起部３１が設けられている。係合突起部３１は、軸受部３の内周面より中心方向に向けて膨出される突起として円周方向に沿って形成されており、ウォーターサーバーより液体容器が取り外される際に、軸受部３の軸孔３０内に挿入された止水部４の外周壁４１が係合突起部３１に係合される。また、係合突起部３１は、給水軸挿入側の側壁がテーパ状に形成され、ウォーターサーバーに液体容器を連結する際に軸受部３の軸孔３０内に挿入された給水軸１１との抵抗が少なくなるように形状されている。 An engaging protrusion 31 is provided on the inner peripheral surface of the bearing portion 3 so as to be engaged with the water stop portion 4. The engaging protrusion 31 is formed along the circumferential direction as a protrusion that bulges toward the center from the inner peripheral surface of the bearing portion 3, and the bearing portion 3 is formed when the liquid container is removed from the water server. The outer peripheral wall 41 of the water stop portion 4 inserted into the shaft hole 30 of the above is engaged with the engaging protrusion portion 31. Further, the engaging protrusion 31 has a tapered side wall on the water supply shaft insertion side, and has resistance to the water supply shaft 11 inserted in the shaft hole 30 of the bearing portion 3 when connecting the liquid container to the water server. It is shaped so that there is less.

軸受部３は、軸孔３０の内径が給水軸１１の外径よりも大きくなるように形成されており（図５等参照）、上述したように軸受部３の内周面に係合突起部３１が突起状に設けられることで、ウォーターサーバーに液体容器を連結する際に、軸受部３の軸孔３０内に挿入された給水軸１１の外周面と係合突起部３１とが水密状態で圧接されて、給水軸１１が止水保持される。 The bearing portion 3 is formed so that the inner diameter of the shaft hole 30 is larger than the outer diameter of the water supply shaft 11 (see FIG. 5 and the like), and as described above, the engaging protrusion portion is formed on the inner peripheral surface of the bearing portion 3. By providing the 31 in a protruding shape, when the liquid container is connected to the water server, the outer peripheral surface of the water supply shaft 11 inserted into the shaft hole 30 of the bearing portion 3 and the engaging protrusion 31 are in a watertight state. The water supply shaft 11 is held still by being pressure-welded.

軸受部３の液体容器側の開口端には、内周縁部が面取りされた面取り部３２が形成されており、ウォーターサーバーより液体容器が取り外される際に、止水部４が軸受部３の軸孔３０への挿入が容易となるように形成されている。 A chamfered portion 32 having an inner peripheral edge chamfered is formed at the open end of the bearing portion 3 on the liquid container side, and when the liquid container is removed from the water server, the water stop portion 4 is the shaft of the bearing portion 3. It is formed so that it can be easily inserted into the hole 30.

軸受部３の液体容器側の開口端には、薄肉部３３を介して止水部４が一体形成されて保持されている（図２及び図３等参照）。薄肉部３３は、面取り部３２の軸孔３０内側の起点に軸受部３の内周面の円周方向に沿って形成され、薄肉部３３を介して止水部４の筒状開口端の縁部と連続されている。薄肉部３３は、軸受部３や止水部４の壁厚（肉厚）よりも極薄い脆弱箇所として設けられており、給水軸１１にて止水部４が押圧されることで破断して、軸受部３より止水部４が容易に引き剥がされるように形成されている。 A water stop portion 4 is integrally formed and held at the open end of the bearing portion 3 on the liquid container side via the thin wall portion 33 (see FIGS. 2 and 3 and the like). The thin-walled portion 33 is formed at the starting point inside the shaft hole 30 of the chamfered portion 32 along the circumferential direction of the inner peripheral surface of the bearing portion 3, and the edge of the tubular opening end of the water-stopping portion 4 is formed via the thin-walled portion 33. It is continuous with the department. The thin-walled portion 33 is provided as a fragile portion that is extremely thin than the wall thickness (thickness) of the bearing portion 3 and the water-stopping portion 4, and is broken by the water-stopping portion 4 being pressed by the water supply shaft 11. The water stop portion 4 is formed so as to be easily peeled off from the bearing portion 3.

止水部４は、有底筒状体に形成される筒状本体４０の外周壁４１の開口端にて、上述した薄肉部３３を介して軸受部３と一体形成されており、筒状開口端が軸受部３の軸孔３０内に向くようにして軸受部３より突出して保持されている。止水部４は、筒状本体４０の外径が少なくとも給水軸１１の外径よりも大きくなるように形成されており、給水軸１１とともに軸受部３の軸孔３０内に挿入されることで、軸受部３の係合突起部３１に外周壁４１が係合されるとともに、外周壁４１の外周面が軸受部３の内周面に当接される。 The water stop portion 4 is integrally formed with the bearing portion 3 via the thin-walled portion 33 described above at the opening end of the outer peripheral wall 41 of the tubular main body 40 formed in the bottomed tubular body, and has a tubular opening. The end is projected from the bearing portion 3 and held so as to face the inside of the shaft hole 30 of the bearing portion 3. The water stop portion 4 is formed so that the outer diameter of the tubular main body 40 is at least larger than the outer diameter of the water supply shaft 11, and is inserted into the shaft hole 30 of the bearing portion 3 together with the water supply shaft 11. The outer peripheral wall 41 is engaged with the engaging protrusion 31 of the bearing portion 3, and the outer peripheral surface of the outer peripheral wall 41 is brought into contact with the inner peripheral surface of the bearing portion 3.

止水部４の（筒状本体４０の）筒状開口端には、給水軸１１の先端に形成される凹状部１１ａと係合可能に突出される保持突起部４２が設けられている。保持突起部４２は、外周壁４１の内周面より中心方向に向けて膨出される突起として円周方向に沿って形成されている。止水部４は、軸受部３の液体容器側の開口端に保持された状態で、軸受部３に挿入された給水軸１１の先端が筒状開口端に嵌挿され、保持突起部４２が凹状部１１ａと係合されることで給水軸１１と一体とされる（図５参照）。 At the tubular opening end (of the tubular body 40) of the water stop portion 4, a holding protrusion 42 is provided so as to be engaged with the concave portion 11a formed at the tip of the water supply shaft 11. The holding protrusion 42 is formed along the circumferential direction as a protrusion that bulges toward the center from the inner peripheral surface of the outer peripheral wall 41. The water stop portion 4 is held at the open end of the bearing portion 3 on the liquid container side, and the tip of the water supply shaft 11 inserted into the bearing portion 3 is fitted into the tubular open end, and the holding protrusion 42 is inserted. By engaging with the concave portion 11a, it is integrated with the water supply shaft 11 (see FIG. 5).

図５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）に予めボトル用一体型キャップ１が装着された液体容器を下動させて、本体部２の天面に露出している軸孔３０より軸受部３内に給水軸１１を挿入する。軸受部３に挿入された給水軸１１は、軸孔３０内で係合突起部３１を拡径方向に弾性変形させながら外周面が水密状に圧着された状態で挿通される。 As shown in FIG. 5, when connecting a liquid container to a water server, a liquid having an integrated bottle cap 1 attached in advance to the opening end (protrusion portion 12) of the tubular mouth portion 10 from above the water server. The container is moved downward to insert the water supply shaft 11 into the bearing portion 3 through the shaft hole 30 exposed on the top surface of the main body portion 2. The water supply shaft 11 inserted into the bearing portion 3 is inserted in a state where the outer peripheral surface is pressure-bonded in a watertight manner while elastically deforming the engaging protrusion portion 31 in the shaft hole 30 in the radial direction.

液体容器の下動に伴って、給水軸１１の先端部が軸受部３の開口端に保持された止水部４に当接され、給水軸１１の先端が止水部４の筒状開口端に嵌挿されて、保持突起部４２が凹状部１１ａと係合される。そして、筒状開口端に嵌挿された給水軸１１にて止水部４が押圧されることで薄肉部３３が破断され、軸受部３より止水部４が引き剥がされる。軸受部３より引き剥がされた止水部４は、給水軸１１と一体に移動され、やがて軸受部３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 the liquid container moves downward, the tip of the water supply shaft 11 is brought into contact with the water stop portion 4 held at the open end of the bearing portion 3, and the tip of the water supply shaft 11 is the tubular open end of the water stop portion 4. The holding protrusion 42 is engaged with the concave portion 11a. Then, the water stop portion 4 is pressed by the water supply shaft 11 fitted in the tubular opening end, so that the thin wall portion 33 is broken and the water stop portion 4 is peeled off from the bearing portion 3. The water stop portion 4 peeled off from the bearing portion 3 is moved integrally with the water supply shaft 11, and eventually the tip of the water supply shaft 11 protrudes from the opening end of the bearing portion 3 on the liquid container side.

他方、図６に示すように、ウォーターサーバーより液体容器が取り外される際には、液体容器が上動されることで給水軸１１と止水部４とが一体に移動されて軸受部３の軸孔３０内に挿入され、軸受部３の内周面に設けられた係合突起部３１に給水軸１１の外周面より突出した止水部４の外周壁４１が係合されることで、給水軸１１の先端より止水部４が脱離され、止水部４を残して給水軸１１のみが軸受部３より引き抜かれる。軸受部３の軸孔３０内に残された止水部４は、外周壁４１が係合突起部３１に水密状に係合されるとともに、外周壁４１の外周面が軸受部３の内周面に当接されて嵌合される。 On the other hand, as shown in FIG. 6, when the liquid container is removed from the water server, the water supply shaft 11 and the water stop portion 4 are integrally moved by moving the liquid container upward, and the shaft of the bearing portion 3 Water is supplied by engaging the outer peripheral wall 41 of the water stop portion 4 protruding from the outer peripheral surface of the water supply shaft 11 with the engaging protrusion 31 inserted into the hole 30 and provided on the inner peripheral surface of the bearing portion 3. The water stop portion 4 is detached from the tip of the shaft 11, and only the water supply shaft 11 is pulled out from the bearing portion 3 leaving the water stop portion 4. In the water stop portion 4 left in the shaft hole 30 of the bearing portion 3, the outer peripheral wall 41 is watertightly engaged with the engaging protrusion portion 31, and the outer peripheral surface of the outer peripheral wall 41 is the inner circumference of the bearing portion 3. It is abutted against the surface and fitted.

以上のように、本実施例のボトル用一体型キャップ１は、ウォーターサーバー用液体容器の筒状口部１０に装着して用いられるボトル用一体型キャップ１であって、筒状口部１０の形状に合わせて弾性変形して挿着される本体部２と、本体部２の中心位置に配設される筒状の軸受部３と、軸受部３の液体容器側の開口端に保持され、軸受部３と薄肉部３３を介して一体に形成される止水部４と、を有してなり、軸受部３に挿入されたウォーターサーバーの給水軸１１にて止水部４が押圧されることで薄肉部３３が破断し、軸受部３より止水部４が引き剥がされるものであるため、低廉なコストで液体容器内の飲料水の漏出を防止できるのである。 As described above, the integrated cap 1 for bottles of this embodiment is the integrated cap 1 for bottles used by being attached to the tubular mouth portion 10 of the liquid container for water server, and is the tubular mouth portion 10. It is held by the main body 2 that is elastically deformed and inserted according to the shape, the tubular bearing 3 that is arranged at the center of the main body 2, and the open end of the bearing 3 on the liquid container side. It has a water stop portion 4 integrally formed via a bearing portion 3 and a thin wall portion 33, and the water stop portion 4 is pressed by the water supply shaft 11 of the water server inserted in the bearing portion 3. As a result, the thin-walled portion 33 is broken and the water-stopping portion 4 is peeled off from the bearing portion 3, so that the leakage of drinking water in the liquid container can be prevented at a low cost.

すなわち、本実施例のボトル用一体型キャップ１は、止水部４が軸受部３の液体容器側の開口端に保持され、軸受部３と薄肉部３３を介して一体に形成されるものであるため、軸受部３の液体容器側の開口端が薄肉部３３及び止水部４にて閉止されて、止水部４が自重にて液体容器内に落下したり、液体容器内の飲料水が隙間から漏出したりしてしまうのを確実に防止することができる。また、従来のように軸受部に別体の止水部材を嵌合するための作業工程が必要となり、ボトル用一体型キャップ１を製造する際のコストを低減できる。 That is, in the bottle-integrated cap 1 of the present embodiment, the water stop portion 4 is held at the opening end of the bearing portion 3 on the liquid container side, and is integrally formed through the bearing portion 3 and the thin-walled portion 33. Therefore, the open end of the bearing portion 3 on the liquid container side is closed by the thin-walled portion 33 and the water stop portion 4, and the water stop portion 4 falls into the liquid container by its own weight, or the drinking water in the liquid container. Can be reliably prevented from leaking from the gap. Further, a work process for fitting a separate water blocking member to the bearing portion is required as in the conventional case, and the cost for manufacturing the integrated cap 1 for bottles can be reduced.

特に、本実施例の薄肉部３３は、軸受部３の液体容器側の開口端の内周縁部に形成された面取り部３２の起点と止水部４の筒状開口端との間に形成されるものであるため、薄肉部３３を極薄い脆弱箇所として設けることができ、給水軸１１にて止水部４が押圧されることで薄肉部３３が確実に破断して、軸受部３より止水部４が容易に引き剥がされるように形成することができる。 In particular, the thin-walled portion 33 of this embodiment is formed between the starting point of the chamfered portion 32 formed on the inner peripheral edge of the opening end on the liquid container side of the bearing portion 3 and the tubular opening end of the water blocking portion 4. Therefore, the thin-walled portion 33 can be provided as an extremely thin fragile portion, and when the water-stopping portion 4 is pressed by the water supply shaft 11, the thin-walled portion 33 is surely broken and stopped from the bearing portion 3. The water portion 4 can be formed so as to be easily peeled off.

また、本実施例の軸受部３は、内周面に止水部４と係合可能に突出される係合突起部３１が設けられるものであるため、ウォーターサーバーより液体容器が取り外される際に、係合突起部３１に止水部４の外周壁４１が係合されることで、給水軸１１の先端より止水部４を脱離させて、軸受部３の軸孔３０内に止水部４を収容することができ、軸受部３に止水部４を保持することで、止水部４が自重にて液体容器内に落下したり、液体容器内の飲料水が機外に漏出したりするのを防止することができる。 Further, since the bearing portion 3 of the present embodiment is provided with an engaging protrusion portion 31 that protrudes so as to be engaged with the water blocking portion 4 on the inner peripheral surface, when the liquid container is removed from the water server, the bearing portion 3 is provided. By engaging the outer peripheral wall 41 of the water stop portion 4 with the engaging protrusion 31, the water stop portion 4 is detached from the tip of the water supply shaft 11 and the water is stopped in the shaft hole 30 of the bearing portion 3. The part 4 can be accommodated, and by holding the water stop part 4 in the bearing part 3, the water stop part 4 falls into the liquid container by its own weight, or the drinking water in the liquid container leaks to the outside of the machine. It is possible to prevent water supply.

また、本実施例の止水部４は、筒状開口端に給水軸１１の先端と係合可能に突出される保持突起部４２が設けられるため、ウォーターサーバーに液体容器を連結する際に給水軸１１の先端と係合して給水軸１１に保持させることで、止水部４が液体容器内に落下するのを防止することができ、また、ウォーターサーバーより液体容器が取り外される際に再び軸受部３に収容して保持させることも可能となる。 Further, since the water stop portion 4 of the present embodiment is provided with a holding protrusion 42 that protrudes so as to be engaged with the tip of the water supply shaft 11 at the tubular opening end, water is supplied when the liquid container is connected to the water server. By engaging with the tip of the shaft 11 and holding it on the water supply shaft 11, it is possible to prevent the water stop portion 4 from falling into the liquid container, and when the liquid container is removed from the water server again, it can be prevented. It is also possible to accommodate and hold the bearing portion 3.

なお、本実施例のボトル用一体型キャップ１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 bottle-integrated cap 1 of the present embodiment is not limited to the above-described embodiment, and various modifications can be made as long as the object of the present invention is not deviated.

すなわち、上述した実施例のボトル用一体型キャップ１では、本体部２、軸受部３及び止水部４が一体形成される構成について説明したが、本体部２及び軸受部３の配置構成はこれに限定されず、軸受部３と止水部４とが薄肉部５を介して一体形成されていればよく、例えば、本体部２とは別部材に軸受部３が設けられてもよい。 That is, in the bottle-integrated cap 1 of the above-described embodiment, the configuration in which the main body portion 2, the bearing portion 3 and the water blocking portion 4 are integrally formed has been described, but the arrangement configuration of the main body portion 2 and the bearing portion 3 is the same. The bearing portion 3 and the water stop portion 4 may be integrally formed via the thin wall portion 5, and for example, the bearing portion 3 may be provided as a member separate from the main body portion 2.

また、上述した実施例のボトル用一体型キャップ１では、止水部４が軸受部３の軸孔３０内に収容された状態で外周壁４１の外周面が軸受部３の内周面に当接される構成について説明したが、軸受部３及び止水部４の構成はこれに限定されず、例えば、外周壁４１に別途突起状のリブを設けて、軸受部３の軸孔３０内に収容された状態でリブが軸受部３の内周面に当接されるように形成して、軸受部３に止水部４が確実に保持されるように構成してもよい。 Further, in the integrated cap 1 for bottles of the above-described embodiment, the outer peripheral surface of the outer peripheral wall 41 hits the inner peripheral surface of the bearing portion 3 in a state where the waterproof portion 4 is housed in the shaft hole 30 of the bearing portion 3. Although the structure to be contacted has been described, the structure of the bearing portion 3 and the waterproof portion 4 is not limited to this. The ribs may be formed so as to be in contact with the inner peripheral surface of the bearing portion 3 in the housed state so that the waterproof portion 4 is reliably held by the bearing portion 3.

また、上述した実施例のボトル用一体型キャップ１では、止水部４の筒状開口端に保持突起部４２が設けられる構成について説明したが、保持突起部４２の配置構成はこれに限定されず、筒状本体４０の内周面のいずれかの箇所に設けられればよい。 Further, in the bottle-integrated cap 1 of the above-described embodiment, the configuration in which the holding protrusion 42 is provided at the cylindrical opening end of the water blocking portion 4 has been described, but the arrangement configuration of the holding protrusion 42 is limited to this. Instead, it may be provided at any position on the inner peripheral surface of the tubular main body 40.

１ボトル用一体型キャップ
２本体部
３軸受部
４止水部
１０筒状口部
１１給水軸
１１ａ凹状部
２０天面部
２１外縁部
２１ａ装着凹部
２２内縁部
２２ａ止水リブ
３０軸孔
３１係合突起部
３２面取り部
３３薄肉部
４０筒状本体
４１外周壁
４２保持突起部 1 Integrated cap for bottle 2 Main body 3 Bearing 4 Water stop 10 Cylindrical mouth 11 Water supply shaft 11a Concave 20 Top surface 21 Outer edge 21a Mounting recess 22 Inner edge 22a Water stop rib 30 Shaft hole 31 Engagement protrusion Part 32 Chamfered part 33 Thin-walled part 40 Cylindrical body 41 Outer peripheral wall 42 Holding protrusion

Claims

An integrated cap for bottles that is used by attaching to the tubular mouth of a liquid container for a water server.
The main body, which is elastically deformed and inserted according to the shape of the tubular mouth,
A cylindrical bearing portion arranged at the center position of the main body portion and
It has a water-stopping portion that is held at the open end of the bearing portion on the liquid container side and is integrally formed with the bearing portion via the thin-walled portion.
When the water stop portion is pressed by the water supply shaft of the water server inserted into the bearing portion, the thin wall portion is broken and the water stop portion is peeled off from the bearing portion.
An integrated cap for bottles that features this.

The first aspect of claim 1, wherein the thin-walled portion is formed between the starting point of the chamfered portion formed on the inner peripheral edge of the opening end on the liquid container side of the bearing portion and the tubular opening end of the water blocking portion. Integrated cap for bottles.

The integrated cap for a bottle according to claim 1 or 2, wherein the bearing portion is provided with an engaging protrusion portion that protrudes so as to be engaged with the water stop portion on the inner peripheral surface.

The integrated cap for a bottle according to any one of claims 1 to 3, wherein the water stop portion is provided with a holding protrusion portion that protrudes so as to be engaged with the tip of the water supply shaft at the cylindrical opening end. ..