JP2004037009A

JP2004037009A - Cooling container

Info

Publication number: JP2004037009A
Application number: JP2002195542A
Authority: JP
Inventors: Yoshinobu Toyomura; 豊村　恵庸
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-04
Filing date: 2002-07-04
Publication date: 2004-02-05

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling container for completely preventing an inner pressure from being generated in assembly. <P>SOLUTION: In the cooling container, periphery sections 3, 4 in an outer container 1 and an inner container 2 are fitted, and a cold insulator 5 is sealed into an inner space 10 that is formed by sealing. In the cooling container, a contact part 7 where an end face 6a or 6b at the other peripheral section comes into contact with the periphery section 3 or 4 to be fitted inside is provided, and an airhole 8 is provided at a position that is separated from the contact section 7, thus forming a groove 9 leading to the airhole 8 from the contact section 7. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、アイスクリームやシャーベット等の氷菓子を作ったりビール等の飲料を保冷したりする冷却容器に関する。
【０００２】
【従来の技術】
氷菓子を作ったりビール等の飲料を保冷したりする冷却容器として、合成樹脂からなる二重壁構造のカップ状の容器体の内部に保冷剤を封入したものが、実開昭６１−３４０８０号公報等に開示されている。そうした冷却容器は、図６に示すように保冷剤９０を入れた外容器９１の中に内容器９２を押し込み、お互いの周縁部９３，９４を嵌合させて一体化した構造となっている。内容器９２を外容器９１に嵌め込む際、空気の逃げ場がないと内部の空気が圧縮されて容器内に内圧が生じる。内容器は熱が伝わりやすいように肉圧を極力薄くしてあるので、僅かな内圧によっても内容器が変形し、商品価値が低下することがある。これまで内圧の発生を防ぐ対策として、内側に嵌め込む方の容器の周縁部９３に空気を抜くための通気孔９５を設けていた。
【０００３】
【発明が解決しようとする課題】
しかしそのように通気孔９５が形成してあっても、通気孔が外側の容器周縁部９４によって塞がった後に内容器９２が僅かに押し込まれ空気が圧縮されるため、内圧の発生を完全に防ぐことはできなかった。合成樹脂の成形技術が進歩したことで、内容器の容積を大きくするとともに肉厚をさらに薄くできるようになり、以前は問題のなかったほんの僅かな内圧によっても、内容器の変形が生ずることとなった。本発明はこうした実情に鑑み、組立時の内圧の発生を完全に防ぐことのできる冷却容器の提供を目的とする。
【０００４】
【課題を解決するための手段】
上記の課題を達成するために請求項１記載の発明による冷却容器は、外容器と内容器の周縁部同士を嵌合させ、密閉して形成される内部空間に保冷剤を封入した冷却容器において、内側に嵌め込む方の周縁部に他方の周縁部の端面が当接する肩当り部と、肩当り部に接する位置に通気孔を設けたことを特徴とする。このように形成すると、外容器と内容器を一体化する際、肩当り部に他方の周縁部が当たる瞬間まで通気孔から空気が抜けるため、内圧の発生を完全に防ぐことができる。
【０００５】
また請求項２記載の発明による冷却容器は、外容器と内容器の周縁部同士を嵌合させ、密閉して形成される内部空間に保冷剤を封入した冷却容器において、内側に嵌め込む方の周縁部に他方の周縁部の端面が当接する肩当り部と、肩当り部と離間する位置に通気孔を設けると共に、肩当り部から通気孔に通じる溝を形成したことを特徴とする。このように形成すると、外容器と内容器を一体化する際、肩当り部に他方の容器周縁部が当たる瞬間まで通気孔と溝を通じて空気が抜けるため、内圧の発生を完全に防ぐことができる。また、通気孔を肩当り部から離間した位置に設け、肩当り部と通気孔の間を溝で繋いでおくと、溝と通気孔に入り込んだ保冷剤がそこにとどまって固まるため、保冷剤の漏出を確実に防止できる。
【０００６】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。図１は本発明の冷却容器の全体構成を示しており、図２は外容器１と内容器２の嵌合部分を分離した状態で拡大して示している。この冷却容器は、外容器１の周縁部３の内側に内容器２の周縁部４を嵌め込んで密閉した内部空間１０を形成し、その内部空間に保冷剤５を封入したものである。
【０００７】
外容器１と内容器２は、耐低温性に優れる合成樹脂により一体に形成されている。外容器１は持ち手１１の付いたジョッキ形となっており、上端の周縁部３の内面側に断面円弧状の凸条１２が円周方向に沿って形成してある。内容器２は飲料等の内容部１３を構成し、その部分の肉圧を１ｍｍ前後と薄く形成してある。また、内容器２の上部周壁は逆Ｖ字状に外側に折り返され、周縁部４が垂下する形となっている。周縁部４の外面側の下端から少し上がった位置には、図２や図３に示すように、前記凸条１２と嵌合する凹溝１４が円周方向に沿って連続して形成してある。凹溝１４の上方には、外容器の周縁部の端面６ａが当接する肩当り部７を形成してある。さらに、凹溝１４と肩当り部７の間の位置に、直径３ミリ程度の通気孔８を水平に貫通して設けてある。通気孔８から肩当り部７までは何ミリか距離があり、その間を深さ２ミリ程度の溝９でつないである。通気孔８と溝９は、周縁部４の一箇所にだけ設けても良いが、対向位置など複数の箇所に設けても良い。
【０００８】
この冷却容器の組立は、保冷剤５を入れた外容器１内に内容器２を挿入し、内容器の周縁部４を外容器の周縁部３の内側に押し込み、凸条１２と凹溝１４を嵌合させて一体化する。この時、容器の内部空間１０に閉じ込められる空気は、外容器の周縁部の端面６ａが内容器の肩当り部７に当接して両者が完全に一体化される瞬間まで、通気孔８と溝９を通じて容器の外側に抜ける。そのため、容器内には内圧が全く生じない。溝９は、外容器周縁部の端面６ａが肩当り部７に圧接することで封止される。また一体化した後で、冷却容器を一度逆さまにして、しばらくしてから元にもどすという作業を行う。逆さまにすると、通気孔８と溝９に保冷剤５が入り込み、その後姿勢を元にもどしても保冷剤５は粘性があるために溝９と通気孔８内にとどまり（特に縦になった溝９には残りやすい）、残った保冷剤５が固まることで溝９が塞がり、以後保冷剤５が外に漏れ出ることがなくなる。なお、図４に示すように、通気孔８を肩当り部７に接するように設けても内圧の発生を防ぐことができる。
【０００９】
図５は、外容器１と内容器２の嵌合部分の別の実施形態を示している。ここでは、内容器の周縁部４を外容器の周縁部３の外側に嵌め込むようにしている。内容器の周縁部４の内側には凸条１２を設けてあり、外容器の周縁部３にはこれに対応した凹溝１４と、通気孔８及び溝９と、内容器の周縁部の端面６ｂが当接する肩当り部７を設けてある。このように形成しても、先の実施形態のものと同じように、内圧の発生を防ぎ且つ保冷剤の漏れを防止できる。
【００１０】
保冷剤５としては、例えば小麦澱粉などの有機増粘剤に水を加えてペースト状物を調製し、これに塩化ナトリウムを主成分とする塩を５〜１６重量％添加して粘土を２〜３０００ポイズにしてなるものを用いる。このような保冷剤は、−２０℃程度に冷却されてもペースト状態を保ち、その温度低下に伴う膨張が小さく、このため内容器や外容器が変形したり破損したりすることを防止できる。
【００１１】
この冷却容器は、冷凍室に一晩程度入れて保冷剤を十分冷却して使用する。内容器内にアイスクリームやシャーベットの材料を入れ、スプーンやヘラ等で内壁に凍り付いたものを掻き取りながら撹拌することで、アイスクリームやシャーベットを手軽に作ることができる。また、ビール等の飲料を保冷することもできる。
【００１２】
【発明の効果】
請求項１記載の発明による冷却容器は、外容器と内容器を一体化する際、肩当り部に他方の周縁部が当たる瞬間まで通気孔から空気が抜けるため、内圧の発生を完全に防ぐことができる。
【００１３】
請求項２記載の発明による冷却容器は、外容器と内容器を一体化する際、肩当り部に他方の容器周縁部が当たる瞬間まで通気孔と溝を通じて空気が抜けるため、内圧の発生を完全に防ぐことができる。また、通気孔を肩当り部から離間した位置に設け、肩当り部と通気孔の間を溝で繋いでおくと、溝と通気孔に入り込んだ保冷剤がそこにとどまって固まるため、保冷剤の漏出を確実に防止できる。
【図面の簡単な説明】
【図１】本発明の冷却容器の全体構成を示す断面図である。
【図２】外容器と内容器の嵌合部分を分離した状態で拡大して示す断面図である。
【図３】内容器の周縁部を拡大して示す正面図である。
【図４】同じく内容器の周縁部を拡大して示す正面図であって、通気孔の別の形態を示す。
【図５】外容器と内容器の嵌合部分の別の実施形態を示す断面図である。
【図６】従来の外容器と内容器の嵌合部分の形態を示す断面図である。
【符号の説明】
１　外容器
２　内容器
３　外容器の周縁部
４　内容器の周縁部
５　保冷剤
６ａ，６ｂ　周縁部の端面
７　肩当り部
８　通気孔
９　溝
１０　内部空間[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cooling container for making ice confectionery such as ice cream and sherbet and for keeping beverages such as beer cool.
[0002]
[Prior art]
As a cooling container for making ice confections and for keeping beverages such as beer cool, a refrigerator containing a cooling agent enclosed in a double-walled cup-shaped container made of synthetic resin is disclosed in Japanese Utility Model Publication No. 61-34080. It is disclosed in gazettes and the like. As shown in FIG. 6, such a cooling container has a structure in which an inner container 92 is pushed into an outer container 91 containing a cooling agent 90, and peripheral portions 93 and 94 are fitted together to be integrated. When the inner container 92 is fitted into the outer container 91, if there is no escape space for the air, the internal air is compressed and an internal pressure is generated in the container. Since the inner pressure of the inner container is reduced as much as possible so that heat can be easily transmitted, even a slight internal pressure may deform the inner container and reduce the commercial value. Until now, as a measure to prevent the generation of internal pressure, a vent hole 95 for bleeding air has been provided in the peripheral portion 93 of the container that is fitted inside.
[0003]
[Problems to be solved by the invention]
However, even if the vent hole 95 is formed in such a manner, the inner container 92 is slightly pushed in after the vent hole is closed by the outer container peripheral portion 94 and the air is compressed, thereby completely preventing the generation of the internal pressure. I couldn't do that. Advances in synthetic resin molding technology have made it possible to increase the volume of the inner container and make it even thinner, and that even with the slightest internal pressure that had no problem before, deformation of the inner container occurs. became. In view of such circumstances, an object of the present invention is to provide a cooling container that can completely prevent generation of internal pressure during assembly.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a cooling container according to the first aspect of the present invention is a cooling container in which a peripheral portion of an outer container and an inner container are fitted to each other, and a cooling agent is sealed in an inner space formed by sealing. A shoulder contact portion in which an end surface of the other peripheral portion abuts on a peripheral edge portion to be fitted inside, and a vent hole is provided in a position in contact with the shoulder contact portion. With this configuration, when the outer container and the inner container are integrated, the air escapes from the ventilation hole until the moment when the other peripheral portion hits the shoulder contact portion, so that the generation of the internal pressure can be completely prevented.
[0005]
The cooling container according to the second aspect of the present invention is a cooling container in which a peripheral portion of an outer container and an inner container are fitted to each other, and a cooling agent is sealed in an inner space formed in a sealed manner. A shoulder contact portion where the end face of the other peripheral portion abuts on the peripheral edge portion, and a vent hole is provided at a position separated from the shoulder contact portion, and a groove is formed from the shoulder contact portion to the vent hole. When formed in this way, when the outer container and the inner container are integrated, the air escapes through the vent hole and the groove until the moment when the other container peripheral edge hits the shoulder contact portion, so that the generation of the internal pressure can be completely prevented. . Also, if the ventilation hole is provided at a position away from the shoulder contact portion and the shoulder contact portion and the ventilation hole are connected by a groove, the cooling agent that has entered the groove and the ventilation hole stays there and solidifies, so the cooling agent Leakage can be reliably prevented.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the entire configuration of the cooling container of the present invention, and FIG. 2 shows an enlarged view of a state where a fitting portion between the outer container 1 and the inner container 2 is separated. In this cooling container, a peripheral portion 4 of an inner container 2 is fitted inside a peripheral portion 3 of an outer container 1 to form a sealed internal space 10, and a cooling agent 5 is sealed in the internal space.
[0007]
The outer container 1 and the inner container 2 are integrally formed of a synthetic resin having excellent low-temperature resistance. The outer container 1 is in the form of a mug with a handle 11, and a ridge 12 having an arc-shaped cross section is formed along the circumferential direction on the inner surface side of the peripheral portion 3 at the upper end. The inner container 2 constitutes a content portion 13 of a beverage or the like, and the thickness of the portion is formed as thin as about 1 mm. Further, the upper peripheral wall of the inner container 2 is folded outward in an inverted V-shape, and the peripheral portion 4 is hung down. At a position slightly raised from the lower end on the outer surface side of the peripheral portion 4, as shown in FIGS. 2 and 3, a concave groove 14 to be fitted with the ridge 12 is formed continuously along the circumferential direction. is there. Above the concave groove 14, a shoulder contact portion 7 with which the end surface 6a of the peripheral portion of the outer container abuts is formed. Further, a ventilation hole 8 having a diameter of about 3 mm is horizontally provided at a position between the concave groove 14 and the shoulder contact portion 7. There is a distance of several millimeters from the ventilation hole 8 to the shoulder contact portion 7, and the distance is connected by a groove 9 having a depth of about 2 millimeters. The ventilation hole 8 and the groove 9 may be provided only at one location of the peripheral portion 4, or may be provided at a plurality of locations such as opposed positions.
[0008]
To assemble the cooling container, the inner container 2 is inserted into the outer container 1 containing the cooling agent 5, the peripheral portion 4 of the inner container is pushed into the inner peripheral portion 3 of the outer container, and the ridges 12 and the grooves 14 are formed. Are fitted and integrated. At this time, the air trapped in the inner space 10 of the container is filled with the vent hole 8 and the groove until the end surface 6a of the outer container abuts against the shoulder contact portion 7 of the inner container and the two are completely integrated. 9 to the outside of the container. Therefore, no internal pressure is generated in the container. The groove 9 is sealed when the end surface 6 a of the outer container peripheral edge portion presses against the shoulder contact portion 7. After the integration, the cooling container is turned upside down and returned to the original state after a while. When it is turned upside down, the cooling agent 5 enters the ventilation holes 8 and the grooves 9, and then stays in the grooves 9 and the ventilation holes 8 even after returning to the original position (especially the vertically extending grooves). 9), and the remaining coolant 5 solidifies, thereby closing the groove 9 and preventing the coolant 5 from leaking outside thereafter. In addition, as shown in FIG. 4, even if the ventilation hole 8 is provided so as to be in contact with the shoulder contact portion 7, generation of internal pressure can be prevented.
[0009]
FIG. 5 shows another embodiment of the fitting portion between the outer container 1 and the inner container 2. Here, the peripheral portion 4 of the inner container is fitted outside the peripheral portion 3 of the outer container. A ridge 12 is provided inside the peripheral portion 4 of the inner container, and the corresponding concave groove 14, the ventilation hole 8 and the groove 9, and the end surface of the peripheral portion of the inner container are provided in the peripheral portion 3 of the outer container. 6b is provided with a shoulder contact portion 7 which abuts. Even with such a configuration, it is possible to prevent the internal pressure from being generated and to prevent the leakage of the cooling agent, as in the previous embodiment.
[0010]
As the cold preservative 5, for example, water is added to an organic thickener such as wheat starch to prepare a paste, and 5 to 16% by weight of a salt containing sodium chloride as a main component is added thereto, and clay is added to the paste. Use the one having 3000 poise. Such a refrigerating agent maintains a paste state even when cooled to about −20 ° C., and its expansion due to the temperature decrease is small, so that the inner container and the outer container can be prevented from being deformed or damaged.
[0011]
This cooling container is put into a freezer overnight to cool the refrigerating agent sufficiently before use. Ice cream and sherbet can be easily made by putting ice cream and sherbet ingredients in the inner container and stirring while scraping the frozen matter on the inner wall with a spoon or a spatula. In addition, beverages such as beer can be kept cool.
[0012]
【The invention's effect】
In the cooling container according to the first aspect of the present invention, when the outer container and the inner container are integrated, air escapes from the ventilation hole until the moment when the other peripheral portion hits the shoulder contact portion, so that the generation of internal pressure is completely prevented. Can be.
[0013]
In the cooling container according to the second aspect of the present invention, when the outer container and the inner container are integrated, the air escapes through the ventilation hole and the groove until the moment when the peripheral edge of the other container hits the shoulder contact portion. Can be prevented. Also, if the ventilation hole is provided at a position away from the shoulder contact portion and the shoulder contact portion and the ventilation hole are connected by a groove, the cooling agent that has entered the groove and the ventilation hole stays there and solidifies, so the cooling agent Leakage can be reliably prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an entire configuration of a cooling container of the present invention.
FIG. 2 is an enlarged cross-sectional view showing a fitting portion between an outer container and an inner container in a separated state.
FIG. 3 is an enlarged front view showing a peripheral portion of the inner container.
FIG. 4 is an enlarged front view showing a peripheral portion of the inner container, which shows another form of a ventilation hole.
FIG. 5 is a cross-sectional view showing another embodiment of the fitting portion between the outer container and the inner container.
FIG. 6 is a cross-sectional view showing a form of a fitting portion between a conventional outer container and an inner container.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer container 2 Inner container 3 Peripheral part of outer container 4 Peripheral part of inner container 5 Coolant 6a, 6b End face of peripheral part 7 Shoulder contact part 8 Vent hole 9 Groove 10 Internal space

Claims

The outer container (1) and the inner container (2) are fitted with each other at the peripheral edges (3, 4), and the inner space (10) formed in a sealed manner is filled with a cooling agent (5). A shoulder contact portion (7) in which an end surface (6a or 6b) of the other peripheral portion abuts on a peripheral edge portion (3 or 4) to be fitted into the airbag, and a vent hole (8) is provided in a position in contact with the shoulder contact portion. A cooling container characterized by the above-mentioned.

The outer container (1) and the inner container (2) are fitted with each other at the peripheral edges (3, 4), and the inner space (10) formed in a sealed manner is filled with a cooling agent (5). The shoulder (7) where the end face (6a or 6b) of the other peripheral part is in contact with the peripheral part (3 or 4) that is to be fitted in the airbag (8) is located at a position separated from the shoulder contact (7). ), And a groove (9) communicating from the shoulder contact portion to the vent hole is formed.