JPH0979725A - Cold insulation body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a using sensation and to improve cooling capacity by a method wherein a bag formed of a flexible non-water permeable sheet is sealed with anti-freeze, and substances filled with water are disposed in the anti-freeze. SOLUTION: A bag 1 is formed in size and a shape suitable for a pillow by using a sheet, such as flexible and non-water permeable rubber and the pillow is filled with anti-freeze 2, such as ethylene glycol. Further, a number of substances 4 sealed with small grain-form water are disposed in the anti- freeze 2. The substance 4 sealed with water is a spherical hollow substance, such as plastic, sealed with water 3, and water with which the substance 4 is sealed is frozen and solidified at 0 deg.C. The freezing point of the anti-freeze 2 is -15 deg.C and since the anti-freeze is not frozen at temperature higher than -15 deg.C, a cold insulation body usually holds a flexible state. Thus, since, compared with a cooling substance containing only the anti-freeze 2, cooling capacity is remarkably improved by an amount equivalent to addition of water and a water part is disposed at the interior of the anti-freeze, even by bringing it contact with a part of a body, a solid feeling is not produced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は不凍液と水を併用し
て、使い心地のよさと優れた冷却能力を兼備させた保冷
体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold insulator in which an antifreeze liquid and water are used in combination and which has both good usability and excellent cooling capacity.

【０００２】[0002]

【従来の技術】頭部を冷やすための氷枕や額当て材、ア
ウト保冷体での冷却材などの用途に用いられる保冷体と
して、従来は袋に水を入れたものや、エチレングリコー
ル、ポリエチレングリコール等の不凍液を入れたものが
知られている。2. Description of the Related Art As a cold insulator used for an ice pillow for cooling the head, a forehead resting material, a cooling material for an out cold insulator, etc., conventionally, a bag filled with water, ethylene glycol, polyethylene glycol It is known to put antifreeze liquid such as.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、水を入
れたものは低温冷凍すると氷塊となり、石のように硬い
ため枕、額など身体の一部に当てて使用するときは使い
心地が悪く、また不凍液を入れたものは、凍結しにくく
低温冷凍しても液状で柔らかいため使い心地はよいが、
不凍液の融解熱はあまり大きくないので冷却の能力に乏
しいものであった。However, when water is put in it, it freezes at low temperature to form an ice block, which is hard like a stone and is uncomfortable when it is applied to a part of the body such as a pillow or forehead. The one containing antifreeze is hard to freeze and is liquid and soft even if it is frozen at low temperature, so it is comfortable to use,
Since the heat of fusion of the antifreeze was not so large, it had a poor cooling capacity.

【０００４】本発明は前記問題点を解消し、使い心地が
よくて冷却能力にも優れた保冷体を提供することを課題
とする。An object of the present invention is to solve the above problems and provide a cold insulator which is comfortable to use and has an excellent cooling capacity.

【０００５】[0005]

【課題を解決するための手段】前記課題を解決するた
め、本発明に係る保冷体は、柔軟で不透水性のシートに
より形成した袋の中へ不凍液を封入するとともに、この
不凍液中に水の封入体を配設したことを特徴とするもの
で、前記水の封入体は多数の小球状に形成されたもので
あるか、不凍液層を上下に分割する袋状であることが好
ましい。In order to solve the above-mentioned problems, the cold insulator according to the present invention has an antifreeze liquid enclosed in a bag formed of a flexible and water-impermeable sheet, and water is contained in the antifreeze liquid. It is characterized in that an enclosure is provided, and the enclosure for water is preferably formed into a large number of small spheres, or preferably has a bag shape that divides the antifreeze layer into upper and lower portions.

【０００６】[0006]

【発明の実施の形態】以下に本発明に係る保冷体の実施
の形態を図面に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a cold insulator according to the present invention will be described below with reference to the drawings.

【０００７】図１は本発明に係る保冷体を枕として構成
した例を示すので、この図において符号１は袋で、この
袋１は柔軟で不透水性のゴム、プラスチック等のシート
により枕に適した大きさと形状に形成され、その中には
エチレングリコール、ポリエチレングリコール等の不凍
液２（不凍液２中に熱伝導性を増すカーボンを添加して
もよい）が封入されている。さらに不凍液２の中には小
粒状の水の封入体４が多数配設されている。水の封入体
４はプラスチック、金属などの球状中空体の内部に水３
を封入したもので、封入体４に封入される水３は０°Ｃ
で凍結して固化する。しかし、エチレングリコール２
７．４重量％の不凍液は凍結点が−１５°Ｃであり、そ
れ以上の温度では凍結しないため、保冷体は通常は全体
として軟質の状態を保持している。FIG. 1 shows an example in which the cold insulator according to the present invention is constructed as a pillow. Therefore, in this figure, reference numeral 1 is a bag, and the bag 1 is made of a soft, water-impermeable rubber or plastic sheet to form a pillow. It is formed into a suitable size and shape, and an antifreeze liquid 2 (such as ethylene glycol, polyethylene glycol, etc.) (carbon which increases thermal conductivity may be added to the antifreeze liquid 2) is enclosed therein. Further, in the antifreeze liquid 2, a large number of small granular water enclosures 4 are arranged. The water enclosure 4 is a spherical hollow body made of plastic, metal, etc.
The water 3 enclosed in the enclosure 4 is 0 ° C.
Freeze and solidify. However, ethylene glycol 2
Since the 7.4% by weight antifreeze has a freezing point of -15 ° C and does not freeze at a temperature higher than that, the cold insulator normally maintains a soft state as a whole.

【０００８】水が凍結した場合、その融解熱は７９．４
０ｃａｌ／ｇ（０°Ｃ）であり、１ｃｃの水の温度を１
°Ｃ上げるには１ｃａｌの熱を要するから、−１５°Ｃ
に冷した保冷体を＋１５°Ｃになるまで使用したとすれ
ば、この間の温度差は３０°Ｃであり所要熱量は３０ｃ
ａｌである。この比較からも分かるように、氷は水にな
るときにまわりから大量の熱を奪うことがわかる。When water freezes, its heat of fusion is 79.4.
0cal / g (0 ° C) and 1cc water temperature is 1
Since it takes 1cal heat to raise ° C, -15 ° C
If the cold insulator cooled down to + 15 ° C is used, the temperature difference between them is 30 ° C and the required heat amount is 30c.
It is al. As you can see from this comparison, it turns out that ice takes a lot of heat from the surroundings when it becomes water.

【０００９】したがって、上記保冷体を使用するにあた
っては、家庭用の冷凍庫で数時間冷凍しておけばよく、
不凍液のみの冷却体に比べて氷を添加した分、冷却能力
が著しく向上するほか、氷の部分は不凍液の内部に配設
されているので、身体の一部に当てても固い感触はな
い。このため、使い心地のよさと優れた冷却能力の両方
が満足されるものである。Therefore, when using the above-mentioned cold insulator, it suffices if it is frozen for several hours in a domestic freezer.
The addition of ice significantly improves the cooling capacity as compared with the antifreeze-only cooling body, and since the ice portion is arranged inside the antifreeze liquid, there is no hard feeling even when it is applied to a part of the body. Therefore, both the ease of use and the excellent cooling capacity are satisfied.

【００１０】なお、不凍液２と水の封入体４との混合比
は、容積比で不凍液２に対し封入体が１〜２の割合で混
合するのが好ましい。この程度がゴツゴツ感がなく、快
適な使用感が得られる。The mixing ratio of the antifreeze liquid 2 and the water inclusion body 4 is preferably such that the volume of the inclusion body is 1 to 2 with respect to the antifreeze liquid 2. At this level, there is no rugged feeling, and a comfortable feeling of use can be obtained.

【００１１】図２は本発明に係る保冷体の実施形態の第
２の例を示すので、この図において符号１は、図１に示
す実施形態と同様の袋を示すもので、この袋１の中に封
入する不凍液２も図１の実施形態のものと同様である。
しかし、不凍液２の中に配置される水の封入体４は、前
記袋１の中へ収まる袋状に形成されていてその中に水３
を封入したもので、この水の封入体４は前記袋１内へ収
容した不凍液２の層を上と下に二分割するように配置す
る。Since FIG. 2 shows a second example of the embodiment of the cold insulator according to the present invention, reference numeral 1 in this figure denotes a bag similar to that of the embodiment shown in FIG. The antifreeze liquid 2 enclosed therein is the same as that of the embodiment of FIG.
However, the water enclosure 4 placed in the antifreeze 2 is formed in a bag shape that fits into the bag 1, and water 3 is contained therein.
This water enclosure 4 is arranged so as to divide the layer of the antifreeze liquid 2 contained in the bag 1 into two parts, an upper part and a lower part.

【００１２】これにより、水３が凍結して氷になり石の
ように硬くなってもその外側には軟質の不凍液２が存在
するため、使い心地は良好で、しかも凍結した水の融解
熱により冷却能力が向上する点も図１に示す実施形態と
同様である。As a result, even if the water 3 freezes to become ice and becomes hard like a stone, the soft antifreeze liquid 2 exists on the outer side of the water 3, so that it is comfortable to use and moreover, due to the heat of fusion of the frozen water. The point that the cooling capacity is improved is also similar to the embodiment shown in FIG.

【００１３】[0013]

【発明の効果】本発明に係る保冷体は、不凍液と水の封
入体とを併有するから、水だけによる保冷体に比べて低
温で冷凍しても表面は柔らかいため大変使い心地がよ
く、また内部の氷塊の融解熱は大きいため、不凍液だけ
を用いる保冷体に比べて著しく冷却能力が向上する。Since the cold insulator according to the present invention has both the antifreeze liquid and the water enclosure, it is very comfortable to use since it has a soft surface even when frozen at a lower temperature than a cold insulator made only of water. Since the heat of melting of the ice blocks inside is large, the cooling capacity is significantly improved compared to the cold insulator using only the antifreeze liquid.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明に係る保冷体の実施形態の一例を示す縦
断正面図である。FIG. 1 is a vertical sectional front view showing an example of an embodiment of a cold insulator according to the present invention.

【図２】本発明に係る保冷体の実施形態の他の例を示す
縦断正面図である。FIG. 2 is a vertical sectional front view showing another example of the embodiment of the cold insulator according to the present invention.

【符号の説明】[Explanation of symbols]

１ 袋 ２ 不凍液 ３ 水 ４ 水の封入体 1 bag 2 antifreeze 3 water 4 water enclosure

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 柔軟で不透水性のシートにより形成した
袋の中へ不凍液を封入するとともに、この不凍液中に水
の封入体を配設したことを特徴とする保冷体。1. A cold insulator, characterized in that an antifreeze liquid is enclosed in a bag formed of a flexible and water-impermeable sheet, and a water enclosure is disposed in the antifreeze liquid. 【請求項２】 前記水の封入体が多数の小粒状に形成さ
れたものである請求項１記載の保冷体。2. The cold insulator according to claim 1, wherein the water enclosure is formed into a large number of small particles. 【請求項３】 前記水の封入体が袋状に形成されたもの
である請求項１記載の保冷体。3. The cold insulator according to claim 1, wherein the water enclosure is formed in a bag shape.