JPS61262581A - Heat-insulating box body - Google Patents
Heat-insulating box bodyInfo
- Publication number
- JPS61262581A JPS61262581A JP10520085A JP10520085A JPS61262581A JP S61262581 A JPS61262581 A JP S61262581A JP 10520085 A JP10520085 A JP 10520085A JP 10520085 A JP10520085 A JP 10520085A JP S61262581 A JPS61262581 A JP S61262581A
- Authority
- JP
- Japan
- Prior art keywords
- inner box
- urethane
- box
- air vent
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Refrigerator Housings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 産業上の利用分野 本発明は冷蔵庫等に使用される断熱箱体に関する。[Detailed description of the invention] Industrial applications The present invention relates to a heat insulating box used in refrigerators and the like.
従来の技術
従来この種の断熱箱体は、第２図の様な構造に表ってい
た。すなわち、断熱箱体１ａは、内箱２と外箱１を所定
間隔で配設し密閉空間内ａにフロンガスを発泡材とした
発泡断熱材３（以下ウレタンと称す）を充填して成され
る。2. Description of the Related Art Conventionally, this type of heat insulating box has a structure as shown in FIG. That is, the heat insulating box body 1a is formed by arranging an inner box 2 and an outer box 1 at a predetermined interval, and filling a closed space a with a foamed heat insulating material 3 (hereinafter referred to as urethane) made of foamed fluorocarbon gas. .
発明が解決しようとする問題点
しかし乍ら、タレタフ３０発泡が完了する近辺はどウレ
タン３の粘性が高くなり内箱２とウレタン３の間に空洞
すが生じ、空洞すにウレタン３中のフロンガスが留るも
のであった。したがって、 ゛内箱の温度変化に
おいてフロンガスの収縮、膨張により内箱２に波打ち状
の変形が発生していた。Problems to be Solved by the Invention However, near the completion of Foaming with Taretafu 30, the viscosity of the urethane 3 increases and a cavity is formed between the inner box 2 and the urethane 3, and the fluorocarbon gas in the urethane 3 is formed in the cavity. It was something that remained. Therefore, wavy deformation occurred in the inner box 2 due to contraction and expansion of the fluorocarbon gas due to temperature changes in the inner box.
そこで、本発明は密閉空間内にウレタンを充填しても、
内箱とウレタンの間に空洞を生じさせず、フロンガス留
シをな゛くし、温度変化があっても内箱の波打ち変形を
防止するものである。Therefore, in the present invention, even if urethane is filled in a closed space,
It does not create a cavity between the inner box and the urethane, eliminates the need for fluorocarbon gas, and prevents the inner box from waving and deforming even when there are temperature changes.
問題点を解決するための手段
そして上記問題点を解決する本発明の技術的な手段は内
箱に発泡断熱材（ウレタン）がもれない程度の大きさの
空気抜穴を設けて、この空気抜穴にフロンガス等の気体
は通すポリエチレン等のフィルムを貼り付けたものであ
る。Means for solving the problems and the technical means of the present invention for solving the above problems is to provide an air vent hole in the inner box that is large enough to prevent the foam insulation material (urethane) from leaking. A film made of polyethylene or the like is attached to the hole to allow gas such as chlorofluorocarbon gas to pass through.
作 用
この技術的手段による作用は次の様になる。前記密閉空
間内にウレタンが充填される時、ウレタンが内箱に密着
しながら流れて行く。そして、その過程でウレタンが空
気を巻き込み空洞が出来かかるが、内箱に空けられてい
る空気抜穴より外部へ空気を排気して発泡が進んでいる
。この後、空気抜き穴をポリエチレン等のフィルムでシ
ールし、内箱側からウレタン側への吸水を防止する。Effect The effect of this technical means is as follows. When the sealed space is filled with urethane, the urethane flows while coming into close contact with the inner box. During this process, the urethane traps air and creates a cavity, but the air is exhausted to the outside through the air vent hole in the inner box, and foaming progresses. After this, the air vent hole is sealed with a film such as polyethylene to prevent water absorption from the inner box side to the urethane side.
この結果、内箱に温度変化しても従来の様な、内箱とウ
レタンの間に空洞が発生する事もないので、空洞にフロ
ンガスが留る事もなく、フロンガスの収縮膨張による内
箱の波打ち変形を防止出来るものである。As a result, even if the temperature changes in the inner box, a cavity will not be generated between the inner box and the urethane, unlike in the conventional case, so fluorocarbon gas will not remain in the cavity, and the inner box will be damaged due to contraction and expansion of the fluorocarbon gas. This can prevent waving deformation.
実施例
以下、本発明の一実施例を添付図面にもとづいて説明す
るが、従来と同一構成については同一番号を符してその
詳細な説明を省略する。Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Structures that are the same as those of the prior art will be denoted by the same reference numerals, and detailed explanation thereof will be omitted.
第１図において、４は内箱２に形成されたウレタン３が
洩れ出ない程度の大きさをした空気抜孔である。この空
気抜孔４は内箱２とウレタン３この空気が溜りやすい部
分またはウレタン３の充填が完了する近辺に多数設けら
れるものである。また、６は水分を通さず気体を通すポ
リエチレンのフィルムで、片面に糊６を設けて、前記空
気抜穴４を覆うものである。In FIG. 1, reference numeral 4 denotes an air vent hole formed in the inner box 2 and having a size that prevents the urethane 3 from leaking out. A large number of air vent holes 4 are provided in areas of the inner box 2 and urethane 3 where air tends to accumulate, or in the vicinity where filling of the urethane 3 is completed. Further, 6 is a polyethylene film that does not allow moisture to pass through but allows gas to pass through, and glue 6 is provided on one side of the film to cover the air vent hole 4 .
そして、両箱間の密閉空間にウレタン３を充填すると、
ウレタン３が内箱に密着し乍ら流れて行く。そして、ウ
レタンと内箱の間に空気を巻き込んでも空気抜穴４より
空気を排気して空洞とならず完全に内箱２に密着する。Then, when the sealed space between both boxes is filled with urethane 3,
Urethane 3 flows while adhering to the inner box. Even if air is trapped between the urethane and the inner box, the air is exhausted from the air vent hole 4 and the inner box is completely adhered to the inner box 2 without forming a cavity.
そして、その後、第３図の様に空気抜穴４を水水分の透
過を防止する。したがって、ウレタン３に含まれるフロ
ンガスが溜る事なく、温度変化による内箱の変形を防止
できる。Then, as shown in FIG. 3, the air vent holes 4 are made to prevent water from permeating. Therefore, the fluorocarbon gas contained in the urethane 3 does not accumulate, and deformation of the inner box due to temperature changes can be prevented.
発明の効果
以上要するにこの発明は、内箱と発泡断熱材の間に発生
する空洞をなくし、発泡断熱材中のフロンガスが空洞に
留る事を防止し、それによる温度変化時のフロンガスの
収縮、膨張による、内箱の波打ち変形を防止するもので
ある。Effects of the Invention In short, this invention eliminates the cavity that occurs between the inner box and the foam insulation material, prevents the fluorocarbon gas in the foam insulation material from remaining in the cavity, and thereby reduces the contraction of the fluorocarbon gas when the temperature changes. This prevents the inner box from waving and deforming due to expansion.
第１図は本発明の一実施例を示す断熱箱体の断面図、第
２図は従来の断熱箱体の断面図である。
１・・・・・・外箱、２・・・・・・内箱、３・・・・
・・ウレタン、４・・・・・・空気抜穴、６・・・・・
・フィルム。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図
ターーーた洞FIG. 1 is a cross-sectional view of a heat-insulating box showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a conventional heat-insulating box. 1...Outer box, 2...Inner box, 3...
...Urethane, 4...Air vent hole, 6...
·film. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure Tarta Cave
Claims (1)
、前記内箱に形成した空気抜穴と、この空気抜穴を覆う
水は通さず気体だけを透過するプラスチックフィルムと
よりなる断熱箱体。An inner box, an outer box, a foam insulation material filled between the two boxes, an air vent hole formed in the inner box, and a plastic film covering the air vent hole that does not allow water to pass through but allows only gas to pass through. An insulated box made of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10520085A JPS61262581A (en) | 1985-05-17 | 1985-05-17 | Heat-insulating box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10520085A JPS61262581A (en) | 1985-05-17 | 1985-05-17 | Heat-insulating box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61262581A true JPS61262581A (en) | 1986-11-20 |
Family
ID=14401020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10520085A Pending JPS61262581A (en) | 1985-05-17 | 1985-05-17 | Heat-insulating box body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61262581A (en) |
-
1985
- 1985-05-17 JP JP10520085A patent/JPS61262581A/en active Pending
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