JPH10253246A - Heat insulating box and its manufacturing apparatus - Google Patents
Heat insulating box and its manufacturing apparatusInfo
- Publication number
- JPH10253246A JPH10253246A JP7656897A JP7656897A JPH10253246A JP H10253246 A JPH10253246 A JP H10253246A JP 7656897 A JP7656897 A JP 7656897A JP 7656897 A JP7656897 A JP 7656897A JP H10253246 A JPH10253246 A JP H10253246A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- box
- insulating material
- outer box
- vacuum 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
Description
【0001】[0001]
【発明の属する技術分野】本発明は、外箱の内箱側に真
空断熱材を取り付け、外箱と内箱間には発泡断熱材を現
場発泡方式にて充填して成る断熱箱体とその製造装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated box body in which a vacuum heat insulating material is attached to an inner box side of an outer box, and a foamed insulating material is filled between the outer box and the inner box by an in-situ foaming method. The present invention relates to a manufacturing apparatus.
【0002】[0002]
【従来の技術】従来よりこの種家庭用冷蔵庫は、鋼板製
の外箱と硬質樹脂製の内箱間に発泡ポリウレタンなどの
発泡断熱材を現場発泡方式にて充填した断熱箱体から構
成されており、この断熱箱体内(庫内)を仕切ることに
よって、−20℃などの凍結温度に冷却される冷凍室
や、+5℃などの冷蔵温度に維持される冷蔵室、そし
て、野菜などの乾燥を嫌う食品を保存するための野菜室
などを区画形成している。2. Description of the Related Art Conventionally, this kind of household refrigerator is constituted by a heat insulating box body in which a foam heat insulating material such as polyurethane foam is filled between a steel sheet outer box and a hard resin inner box by an in-situ foaming method. By partitioning the inside of the heat insulation box (inside the refrigerator), a freezing room cooled to a freezing temperature such as -20 ° C, a refrigerated room maintained at a refrigerated temperature such as + 5 ° C, and drying of vegetables and the like can be performed. Vegetable room for storing foods you dislike is formed.
【0003】特に、近年では頻繁に食品の納出が行われ
る冷蔵室や野菜室を上方に配置し、長期保存を目的とし
た冷凍室は庫内の最下部に配置した冷蔵庫が開発されて
いる。[0003] In particular, in recent years, refrigerators have been developed in which a refrigerator compartment and a vegetable compartment, where food is frequently delivered, are arranged above, and a freezer compartment for long-term storage is arranged at the bottom of the refrigerator. .
【0004】また、近年では冷蔵庫の設置スペースを縮
小し、或いは、その拡大を防止しつつ、庫内有効容積を
拡張するために、断熱箱体の壁厚を薄くする必要が生じ
ており、そのため、例えば特公昭61−17263号公
報(B32B5/18)や特公昭63−35911号公
報(F25D23/06)、或いは、特公平2−544
79号公報(F16L59/06)に示されるような真
空断熱材が用いられるようになって来た。In recent years, it has become necessary to reduce the wall thickness of the heat-insulating box in order to reduce the installation space of the refrigerator or to prevent the expansion of the refrigerator while expanding the effective volume in the refrigerator. For example, JP-B-61-17263 (B32B5 / 18) and JP-B-63-35911 (F25D23 / 06), or JP-B-2-544.
No. 79 (F16L59 / 06) has come to use a vacuum heat insulating material.
【0005】この真空断熱材は、ガス(空気など)の透
過を阻止する多層ラミネート構造のフィルム(ガスバリ
アフィルム)の周囲を溶着して成る袋内に、シリカ、パ
ーライトなどの微粉末、及び、グラスファイバ、或い
は、連続気泡の発泡ポリウレタンなどから成る断熱材を
挿入した後、袋内のガスを排気し、真空状態として密封
したものである。[0005] This vacuum heat insulating material is provided in a bag formed by welding the periphery of a film (gas barrier film) having a multilayer laminate structure for preventing gas (such as air) from permeating, into a fine powder of silica, pearlite, etc., and a glass. After inserting a heat insulating material made of fiber or open-cell foamed polyurethane, the gas in the bag is evacuated and sealed in a vacuum state.
【0006】係る真空断熱材によれば、0.005〜
0.010Kcal/mh℃の熱伝導率が達成されるの
で、特に低温が要求される冷凍室周囲の外箱内面(内箱
側の面)に取り付ければ、断熱箱体の壁厚を薄くして
も、外箱外から冷凍室内に侵入する熱を有効に削減する
ことが可能となる。According to such a vacuum heat insulating material, 0.005 to
Since a thermal conductivity of 0.010 Kcal / mh ° C. is achieved, the wall thickness of the heat insulating box can be reduced by mounting it on the inner surface of the outer box (surface on the inner box side) around the freezing room where low temperature is required. In addition, it is possible to effectively reduce heat that enters the freezer compartment from outside the outer box.
【0007】[0007]
【発明が解決しようとする課題】ところで、係る冷蔵庫
の断熱箱体を製造する場合、先ず、真空断熱材が予め貼
り付けられた外箱内に内箱を組み込んだ後、前面開口を
下にして発泡内治具に被せると共に、外側からは発泡外
治具を宛う。その状態で、外箱の背板の例えば上下方向
の中央部左右に形成された注入口からポリウレタン原液
を注入し、両箱間に反応成長(発泡)・固化させて充填
するものであるが、この際の成長の過程で両箱間の空気
を両箱外に逃がさなければならない。By the way, when manufacturing the heat insulating box of the refrigerator, first, the inner box is assembled into the outer box to which the vacuum heat insulating material is attached in advance, and then the front opening is turned down. The jig is placed on the inner foam jig, and the outer jig is addressed from the outside. In this state, the polyurethane undiluted solution is injected from an inlet formed in the left and right of the back plate of the outer box, for example, in the vertical direction, and is filled by reaction growth (foaming) / solidification between the two boxes. In the process of growth at this time, the air between the two boxes must be released outside the two boxes.
【0008】このための空気抜き孔は、従来一般的には
発泡の最終段階となる外箱の背板適所に穿設されるもの
であったが、冷凍室の背方に当たる外箱背板内面に真空
断熱材を取り付けてしまうと、発泡断熱材の充填時に空
気抜きができなくなり、この部分に未充填部分や低密度
で強度不足となる箇所が発生してしまう問題が生じてい
た。Conventionally, air vent holes for this purpose are generally formed at appropriate places on the back plate of the outer box, which is the final stage of foaming, but are provided on the inner surface of the back box of the outer box, which is behind the freezer compartment. If the vacuum heat insulating material is attached, air can not be released when the foam heat insulating material is filled, and there is a problem that an unfilled portion or a portion having a low density and insufficient strength occurs at this portion.
【0009】本発明は、係る従来の技術的課題を解決す
るために成されたものであり、外箱内面に真空断熱材を
取り付けた場合にも、発泡断熱材の充填を円滑且つ良好
に行うことができる断熱箱体及びその製造装置を提供す
るものである。The present invention has been made to solve the above-mentioned conventional technical problem. Even when a vacuum heat insulating material is attached to the inner surface of an outer box, the foam heat insulating material can be smoothly and satisfactorily filled. And a device for manufacturing the same.
【0010】[0010]
【課題を解決するための手段】本発明の断熱箱体は、外
箱と、内箱と、外箱の内箱側の面に取り付けられた真空
断熱材とを備え、両箱間に発泡断熱材を現場発泡方式に
て充填して成るものであって、内箱には発泡断熱材充填
用の空気抜き孔を形成したものである。The heat insulating box of the present invention includes an outer box, an inner box, and a vacuum heat insulating material attached to a surface of the outer box on the inner box side. The material is filled by an in-situ foaming method, and an inner box is provided with an air vent hole for filling a foamed heat insulating material.
【0011】本発明によれば、外箱と、内箱と、外箱の
内箱側の面に取り付けられた真空断熱材とを備え、両箱
間に発泡断熱材を現場発泡方式にて充填して成る断熱箱
体において、前記内箱に発泡断熱材充填用の空気抜き孔
を形成したので、外箱の内箱側の面に真空断熱材が取り
付けられているにも拘わらず、内箱側の空気抜き孔から
発泡断熱材の反応成長時の空気抜きを行うことができる
ようになり、発泡断熱材の未充填部や低密度箇所の発生
を効果的に解消し、均一な密度の発泡充填を実現するこ
とができるようになるものである。According to the present invention, there is provided an outer box, an inner box, and a vacuum heat insulating material attached to a surface of the outer box on the side of the inner box. In the heat-insulating box body formed as described above, since the air vent hole for filling the foam heat-insulating material is formed in the inner box, the vacuum heat-insulating material is attached to the inner-box-side surface of the outer box. Air can be removed during the reactive growth of the foamed insulation material through the air vent holes, effectively eliminating the unfilled and low-density parts of the foamed insulation material and achieving uniform density foam filling. Is what you can do.
【0012】請求項2の発明の断熱箱体の製造装置は、
上記発泡断熱材の充填時に内箱に当接する発泡内治具を
備え、この発泡内治具には、内箱の空気抜き孔に対応す
る位置に、当該空気抜き孔に連通する空気抜き通路が形
成されているものである。According to a second aspect of the present invention, there is provided an apparatus for manufacturing an insulated box.
An inner foaming jig which comes into contact with the inner box when filling the foamed heat insulating material is provided. The inner foaming jig is formed with an air vent passage communicating with the air vent hole at a position corresponding to the air vent hole of the inner box. Is what it is.
【0013】請求項2の発明によれば、上記発泡断熱材
の充填時に内箱に当接する発泡内治具を備え、この発泡
内治具には、内箱の空気抜き孔に対応する位置に、当該
空気抜き孔に連通する空気抜き通路を形成したので、内
箱に形成した空気抜き孔からの排気を円滑に行い、発泡
断熱材の充填をより一層均一且つ良好に行うことができ
るようになるものである。According to the second aspect of the present invention, there is provided an inner foaming jig which comes into contact with the inner box when the foamed heat insulating material is filled, and the inner foaming jig is provided at a position corresponding to an air vent hole of the inner box. Since the air vent passage communicating with the air vent hole is formed, the exhaust from the air vent hole formed in the inner box is smoothly performed, and the filling of the foamed heat insulating material can be performed more uniformly and favorably. .
【0014】[0014]
【発明の実施の形態】次に、図面に基づき本発明の実施
形態を詳述する。図1は本発明を適用した実施例として
の冷蔵庫1の正面図、図2は扉を除く冷蔵庫1の正面
図、図3は冷蔵庫1の縦断側面図、図4は冷蔵庫1の背
面図、図5は冷蔵庫1のもう一つの縦断側面図、図6は
図5のA−A線断面図、図7は図6のB−B線断面図、
図8は図6のC−C線断面図、図9は冷蔵庫1の透視分
解斜視図である。Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a refrigerator 1 as an embodiment to which the present invention is applied, FIG. 2 is a front view of the refrigerator 1 without a door, FIG. 3 is a longitudinal side view of the refrigerator 1, and FIG. 5 is another longitudinal side view of the refrigerator 1, FIG. 6 is a sectional view taken along line AA of FIG. 5, FIG. 7 is a sectional view taken along line BB of FIG.
FIG. 8 is a sectional view taken along line CC of FIG. 6, and FIG. 9 is a perspective exploded perspective view of the refrigerator 1.
【0015】本発明の冷蔵庫1は、前方に開口する鋼板
製の外箱2と、硬質樹脂製の内箱3間に発泡ポリウレタ
ン断熱材4を現場発泡方式により充填して成る断熱箱体
6により構成されており、この断熱箱体6の庫内は、略
中央部に設けられた仕切板7によって上下に区画され、
仕切板7の上方を冷蔵温度(+5℃程)に維持される冷
蔵室8としている。The refrigerator 1 of the present invention comprises a heat-insulating box 6 formed by filling a foamed polyurethane heat-insulating material 4 between an outer box 2 made of a steel plate opening forward and an inner box 3 made of a hard resin by an in-situ foaming method. The interior of the heat-insulating box 6 is vertically partitioned by a partition plate 7 provided at a substantially central portion,
The upper part of the partition plate 7 is a refrigerating room 8 maintained at a refrigerating temperature (about + 5 ° C.).
【0016】仕切板7の下方は更に真空断熱材を内蔵し
た断面略L字状の断熱仕切壁9にて上下に区画され、こ
の断熱仕切壁9と仕切板7の間を野菜などの乾燥を嫌う
食品を収納するための野菜室17とし、断熱仕切壁9の
下方を凍結温度(−20℃程)に冷却される冷凍室18
としている。The lower part of the partition plate 7 is further vertically divided by a heat insulating partition wall 9 having a substantially L-shaped cross section and containing a vacuum heat insulating material. The space between the heat insulating partition wall 9 and the partition plate 7 is used for drying vegetables and the like. A vegetable compartment 17 for storing disliked food, and a freezer compartment 18 in which the lower part of the heat insulating partition wall 9 is cooled to a freezing temperature (about −20 ° C.).
And
【0017】前記冷蔵室8内には上下複数段の棚21・
・が架設されており、その下部には氷温(0℃〜−3
℃)に維持される氷温室22が形成されている。また、
冷蔵室8の前面開口は回動式の扉23にて開閉自在に閉
塞されている。The refrigerator compartment 8 has a plurality of upper and lower shelves 21.
・ The ice temperature (0 ° C to -3
(° C.) is formed. Also,
The front opening of the refrigerator compartment 8 is closed by a pivotable door 23 so as to be openable and closable.
【0018】更に、冷蔵室8の背部には冷蔵室ダクト2
4が上下に渡って形成されており、その左右には冷蔵室
ダクト24の上端部と冷蔵室8内に連通した冷蔵室冷気
吐出口26が上下に複数形成されている。また、前記氷
温室22内にも氷温室冷気吐出口25が形成されると共
に、その奥部及び底部(仕切板7)には冷蔵室冷気戻り
口27が形成されている。Further, the refrigerator compartment duct 2 is provided at the back of the refrigerator compartment 8.
4 are formed vertically, and on the left and right sides thereof, a plurality of refrigerator air outlets 26 communicating with the upper end of the refrigerator compartment 24 and the refrigerator 8 are formed vertically. Further, an ice greenhouse cold air discharge port 25 is formed inside the ice greenhouse 22, and a cold storage room cool air return port 27 is formed at the back and bottom (partition plate 7).
【0019】前記野菜室17の奥上部には前記冷蔵室冷
気戻り口27に連通した野菜室冷気吐出口31が形成さ
れており、更に右上奥には野菜室冷気戻り口32が形成
されている。この野菜室17の前面開口は引き出し式の
扉33により開閉自在に閉塞されると共に、この扉33
の裏面には上面に開口した野菜容器34が取り付けら
れ、この野菜容器34が野菜室17内に配置され、野菜
を収納するかたちとなる。A vegetable compartment cool air discharge port 31 communicating with the refrigerator compartment cool air return port 27 is formed at the upper back of the vegetable compartment 17, and a vegetable compartment cool air return port 32 is further formed at the upper right back side. . The front opening of the vegetable compartment 17 is openably and closably closed by a drawer-type door 33, and the door 33
A vegetable container 34 having an opening on the upper surface is attached to the back surface of the container, and the vegetable container 34 is disposed in the vegetable compartment 17 to store vegetables.
【0020】前記冷凍室18の背部には仕切板36によ
り冷却室37が画成されており、この冷却室37は冷凍
室18の背方から断熱仕切壁9の背方まで渡っている。
そして、この冷却室37内には冷却装置を構成する冷却
器38が縦設されると共に、この冷却器38の上方の冷
却室37内には送風機39が設置されている。尚、41
は冷却器38の除霜ヒータである。A cooling chamber 37 is defined at the back of the freezing chamber 18 by a partition plate 36, and extends from the back of the freezing chamber 18 to the back of the heat insulating partition wall 9.
In the cooling chamber 37, a cooler 38 constituting a cooling device is installed vertically, and a blower 39 is installed in the cooling chamber 37 above the cooler 38. Incidentally, 41
Denotes a defrost heater of the cooler 38.
【0021】この冷凍室18の前面開口は上下二段の引
き出し式の扉42、43により開閉自在に閉塞されると
共に、これら扉42、43の裏面にはそれぞれ上面に開
口した容器44、46が取り付けられ、この容器44、
46が冷凍室18内の上下に配置され、冷凍食品やアイ
スクリームなどを収納するかたちとなる。The front opening of the freezer compartment 18 is closed by two drawer-type doors 42, 43 which are openable and closable, and containers 44, 46 having upper surfaces respectively opened on the back surfaces of the doors 42, 43. Attached, this container 44,
Reference numerals 46 are arranged above and below the freezer compartment 18 to store frozen food, ice cream, and the like.
【0022】前記仕切板36と冷却器38及び送風機3
9間には冷気分配用ダクト47が形成されており、仕切
板36にはこのダクト47と冷凍室18とに連通した冷
凍室冷気吐出口48、49が各容器44、46の上奥部
に対応して開口している。また、容器46の背方には冷
却室37の下部に連通した冷凍室冷気戻り口51が形成
されている。The partition plate 36, the cooler 38 and the blower 3
A cooling air distribution duct 47 is formed between the cylinders 9, and freezing room cold air discharge ports 48, 49 communicating with the duct 47 and the freezing room 18 are formed in the partition plate 36 at the upper back of the containers 44, 46. Open correspondingly. In addition, a freezer compartment cool air return port 51 communicating with a lower portion of the cooling compartment 37 is formed behind the container 46.
【0023】ダクト47の上部には送風機39の側方に
位置して冷気分配口52が形成され、この冷気分配口5
2が冷蔵室ダクト24の下端に連通している。また、冷
却器38の側方には冷蔵室・野菜室冷気戻りダクト53
が形成されており、その上端は前記野菜室冷気戻り口3
2に連通し、その下端は冷却室37の下部に開口した冷
蔵室・野菜室冷気戻り口54にて冷却室37内に連通し
ている。尚、図2では断熱仕切壁9及び仕切板36を撤
去している。At the upper part of the duct 47, a cool air distribution port 52 is formed on the side of the blower 39.
2 communicates with the lower end of the refrigerator compartment duct 24. In addition, beside the cooler 38, a cold air return duct 53 is provided in the refrigerator compartment / vegetable compartment.
The upper end of which is formed in the vegetable compartment cool air return port 3
The lower end thereof communicates with the inside of the cooling chamber 37 through a cold air return port 54 for opening the refrigerator compartment / vegetable compartment opened at the lower part of the cooling compartment 37. In FIG. 2, the heat insulating partition wall 9 and the partition plate 36 are removed.
【0024】一方、断熱箱体6の底壁6Aは後部が階段
状に立ち上がる形状とされており、この底壁6Aの後部
外側には機械室56が形成されている。この機械室56
内には冷却装置を構成する圧縮機57、蒸発皿コンデン
サ58及び主コンデンサ59が設置される。また、底壁
6Aが係る形状とされている関係上、冷凍室18の底部
も後部が立ち上がる形状とされ、そのため、下方の容器
46の後面は上方の容器44の後面よりも前方に位置す
るかたちとなる。そして、前記冷却器38は立ち上がっ
た底壁6Aの上方に位置することになる。On the other hand, the bottom wall 6A of the heat-insulating box 6 is formed such that the rear portion rises in a stepped manner, and a machine room 56 is formed outside the rear portion of the bottom wall 6A. This machine room 56
Inside, a compressor 57, an evaporating dish condenser 58, and a main condenser 59 constituting a cooling device are installed. In addition, since the bottom wall 6A has such a shape, the bottom of the freezing compartment 18 also has a shape in which the rear rises, so that the rear surface of the lower container 46 is located forward of the rear surface of the upper container 44. Becomes The cooler 38 is located above the raised bottom wall 6A.
【0025】他方外箱2の内面には高温冷媒配管61が
交熱的に添設(貼付)され、断熱箱体6の開口周縁に位
置する外箱2の内面にも高温冷媒配管62が設けられて
いる。そして、圧縮機57の吐出側は前記蒸発皿コンデ
ンサ58に接続され、蒸発皿コンデンサ58の出口は主
コンデンサ59に接続される。主コンデンサ59の出口
は前記高温冷媒配管61に接続され、高温冷媒配管61
の出口は前記開口周縁の高温冷媒配管62に接続され
る。そして、この高温冷媒配管62は図示しないキャピ
ラリチューブを経て前記冷却器38に接続され、冷却器
38の出口は圧縮機57の吸込側に接続される。On the other hand, a high-temperature refrigerant pipe 61 is alternately provided (attached) to the inner surface of the outer box 2 in a heat-exchange manner, and a high-temperature refrigerant pipe 62 is also provided on the inner surface of the outer box 2 located at the periphery of the opening of the heat insulating box 6. Have been. The discharge side of the compressor 57 is connected to the evaporating dish condenser 58, and the outlet of the evaporating dish condenser 58 is connected to the main condenser 59. The outlet of the main condenser 59 is connected to the high-temperature refrigerant pipe 61,
Is connected to a high-temperature refrigerant pipe 62 around the opening. The high-temperature refrigerant pipe 62 is connected to the cooler 38 via a capillary tube (not shown), and the outlet of the cooler 38 is connected to the suction side of the compressor 57.
【0026】係る構成で、圧縮機57が運転されると、
圧縮機57からは高温高圧のガス冷媒が吐出され、蒸発
皿コンデンサ58、主コンデンサ59に順次流入して放
熱し、凝縮されて行く。主コンデンサ59を出た冷媒は
高温冷媒配管61に流入して更に放熱し、次に、高温冷
媒配管62に流入して開口周縁を加熱する。これによっ
て、開口周縁への結露を解消する。With this configuration, when the compressor 57 is operated,
A high-temperature and high-pressure gas refrigerant is discharged from the compressor 57, flows into the evaporating dish condenser 58 and the main condenser 59 in order, releases heat, and is condensed. The refrigerant flowing out of the main condenser 59 flows into the high-temperature refrigerant pipe 61 to further radiate heat, and then flows into the high-temperature refrigerant pipe 62 to heat the periphery of the opening. Thereby, dew condensation on the periphery of the opening is eliminated.
【0027】高温冷媒配管62を出た冷媒は前記キャピ
ラリチューブにて減圧された後、冷却器38に入って蒸
発する。このときに周囲から熱を奪い、冷却室37内の
空気を冷却する。冷却器38を出た冷媒は再び圧縮機5
7に吸い込まれる。The refrigerant flowing out of the high-temperature refrigerant pipe 62 is decompressed by the capillary tube, enters the cooler 38 and evaporates. At this time, heat is taken from the surroundings, and the air in the cooling chamber 37 is cooled. The refrigerant exiting the cooler 38 is again supplied to the compressor 5
It is sucked into 7.
【0028】前述の如く冷却器38にて冷却された冷気
は上方の送風機39の運転により吸引され、前方の分配
ダクト47に吹き出される。分配ダクト47に吹き出さ
れた冷気は冷凍室冷気吐出口48、49から冷凍室18
内の各容器44、46内に吐出され、−20℃程の凍結
温度に冷却する。尚、冷凍室18内の冷気は冷凍室冷気
戻り口51から冷却器38の吸い込み側の冷却室37内
に帰還する。As described above, the cool air cooled by the cooler 38 is sucked by the operation of the upper blower 39 and is blown out to the front distribution duct 47. The cool air blown out to the distribution duct 47 flows from the cool room discharge ports 48 and 49 to the freezer room 18.
Is discharged into each of the containers 44 and 46 and cooled to a freezing temperature of about −20 ° C. The cool air in the freezer compartment 18 returns from the freezer cool air return port 51 into the cooling compartment 37 on the suction side of the cooler 38.
【0029】分配ダクト47に吹き出された冷気はま
た、冷気分配口52から冷蔵室ダクト24に流入し、そ
こを上昇した後、各冷蔵室冷気吐出口26・・及び氷温
室冷気吐出口25より冷蔵室8及び氷温室22内に吐出
される。冷蔵室ダクト24内には冷蔵室8内の温度にて
開閉する図示しないダンパーが設けられており、これに
よって、冷蔵室8内は+5℃程の冷蔵温度に維持される
と共に、氷温室22内は0℃〜−3℃程の氷温に維持さ
れる。The cold air blown out to the distribution duct 47 also flows into the refrigerator compartment duct 24 from the cool air distribution port 52 and rises there. Then, from each of the refrigerator compartment cold air discharge ports 26. It is discharged into the refrigeration room 8 and the ice temperature room 22. A not-shown damper that opens and closes at the temperature in the refrigerator compartment 8 is provided in the refrigerator compartment duct 24, whereby the refrigerator compartment 8 is maintained at a refrigerator temperature of about + 5 ° C. Is maintained at an ice temperature of about 0 ° C. to −3 ° C.
【0030】各室8、22内を循環した冷気は冷蔵室冷
気戻り口27に流入して野菜室冷気吐出口31などから
野菜室17内に入り、野菜室容器34内を周囲から保冷
する。そして、野菜室17内を循環した冷気は野菜室冷
気戻り口32より冷蔵室・野菜室冷気戻りダクト53に
流入し、そこを流下して冷蔵室・野菜室冷気戻り口54
より冷却器38の吸い込み側の冷却室37内に帰還す
る。The cool air circulated in the chambers 8 and 22 flows into the cold room return port 27 and enters the vegetable room 17 from the vegetable room cool air discharge port 31 and the like, and keeps the inside of the vegetable room container 34 cool from the surroundings. Then, the cool air circulated in the vegetable room 17 flows into the cool room / vegetable room cool air return duct 53 from the vegetable room cool air return port 32, flows down there, and returns to the cool room / vegetable room cool air return port 54.
It returns to the cooling chamber 37 on the suction side of the cooler 38.
【0031】一方、冷凍室18の両側方に対応する外箱
2の側板2A、2A内面には真空断熱材71、71が貼
り付けられると共に、冷凍室18の下方に対応する外箱
2の底板2B内面にも真空断熱材72が貼り付けられ、
断熱材4内に埋設されている。また、冷凍室18の背方
の冷却室37背方に対応する外箱2の背板2C内面にも
真空断熱材73が貼り付けられ、断熱材4内に埋設され
ている。On the other hand, vacuum heat insulating materials 71, 71 are attached to the inner surfaces of the side plates 2A, 2A of the outer box 2 corresponding to both sides of the freezing room 18, and the bottom plate of the outer box 2 corresponding to the lower part of the freezing room 18. A vacuum heat insulating material 72 is also attached to the inner surface of 2B,
It is embedded in the heat insulating material 4. The vacuum heat insulating material 73 is also attached to the inner surface of the back plate 2C of the outer box 2 corresponding to the rear of the freezing room 18 behind the cooling room 37, and is buried in the heat insulating material 4.
【0032】各真空断熱材71、72、73は、例えば
内側からポリエチレン若しくはポリプロピレンなどから
成る熱溶着層とアルミニウム層及び表面保護層をラミネ
ートしたガスバリアフィルムを折り返し、二辺を密着さ
せて熱溶着層を相互に溶着することにより袋状とし、そ
の状態でシリカ、パーライトなどの微粉末、及び、グラ
スファイバ、或いは、連続気泡の発泡ポリウレタン断熱
材から成るコア材を挿入し、所定の真空排気装置内にお
いて袋内部のガスを排気して真空状態とした後、残りの
一辺の前記熱溶着層を相互に溶着させて密封することに
より、製造されている。Each of the vacuum heat insulating materials 71, 72 and 73 is formed by folding a gas barrier film in which a heat-welding layer made of, for example, polyethylene or polypropylene, an aluminum layer and a surface protective layer are laminated from the inside, and bringing two sides into close contact with each other. Are welded to each other to form a bag, and in that state, a fine powder such as silica or pearlite, and a core material made of glass fiber or open-cell foamed polyurethane heat insulating material are inserted, and a predetermined vacuum exhaust device is inserted. After the gas in the bag is evacuated to a vacuum state, the heat-welding layers on the other side are mutually welded and sealed.
【0033】このうち、冷凍室18の両側方に位置する
真空断熱材71、71の上部は図5に示す如く野菜室1
7を経て冷蔵室8の下部まで延在すると共に、真空断熱
材71、71の下端縁71Aはその後部が前部よりも所
定の角度で徐々に立ち上がる傾斜形状とされている。こ
れにより、真空断熱材71の下端縁71Aは底壁6Aの
形状に近似した形状となり、真空断熱材71、71は機
械室56を避けて冷凍室18底部の前部から後部に渡る
略全域をカバーするようになる。Of these, the upper portions of the vacuum heat insulating materials 71, 71 located on both sides of the freezing compartment 18 are provided with the vegetable compartment 1 as shown in FIG.
7, the lower end edge 71A of the vacuum heat insulating material 71, 71 has an inclined shape in which the rear portion gradually rises at a predetermined angle from the front portion. Thereby, the lower end edge 71A of the vacuum heat insulating material 71 has a shape similar to the shape of the bottom wall 6A, and the vacuum heat insulating materials 71, 71 cover substantially the entire area from the front part to the rear part of the bottom of the freezing chamber 18 avoiding the machine room 56. Will come to cover.
【0034】これによって、機械室56による断熱箱体
6の底壁6Aの形状に係わらず、真空断熱材71、71
を断熱箱体6の底部に広い面積で貼り付け、その断熱効
果を向上させることができるようになる。特に、最も断
熱したい冷凍室18の側方略全域に真空断熱材71、7
1を設けることができるようになるので、断熱箱体6の
壁厚を薄くして冷蔵庫1の設置スペースをより一層縮小
し、若しくは、有効容積を拡大し、或いは、冷却装置の
消費電力の一層の削減を図ることができるようになる。Thus, regardless of the shape of the bottom wall 6A of the heat insulating box 6 formed by the machine room 56, the vacuum heat insulating materials 71, 71 are provided.
Is attached to the bottom of the heat insulation box 6 with a large area, and the heat insulation effect can be improved. In particular, the vacuum heat insulating materials 71 and 7 are provided almost all over the side of the freezing room 18 where heat insulation is most desired.
1 can be provided, so that the wall thickness of the heat insulating box 6 is reduced to further reduce the installation space of the refrigerator 1, or to increase the effective volume, or to further increase the power consumption of the cooling device. Can be reduced.
【0035】また、真空断熱材71を係る形状とするた
めに、真空断熱材71を構成するコア材も先細り形状と
なるので、ガスバリアフィルム内に挿入する作業も容易
となり、真空断熱材71自体の組立作業性も向上する。
尚、この場合コア材が細くなる先端側となるガスバリア
フィルムの熱溶着部分は略三角形状に余る状態となる
が、この余り部分はコア材の形状に沿って切除するもの
とする。In order to form the vacuum heat insulating material 71, the core material constituting the vacuum heat insulating material 71 also has a tapered shape, so that the work of inserting the vacuum heat insulating material 71 into the gas barrier film becomes easy, and the vacuum heat insulating material 71 itself is formed. Assembly workability is also improved.
In this case, the heat-welded portion of the gas barrier film on the tip end side where the core material becomes thinner is left in a substantially triangular shape, and this surplus portion is cut off along the shape of the core material.
【0036】更に、冷凍室18の下方に位置する真空断
熱材72は底壁6Aの形状に沿って階段状に成形されて
いる。Further, the vacuum heat insulating material 72 located below the freezing compartment 18 is formed stepwise along the shape of the bottom wall 6A.
【0037】一方、冷凍室18の背方に位置する真空断
熱材73は全体としては矩形状を呈している。また、そ
のコア材は図6に示す如く冷却器38と送風機39を含
む領域の背方投影面積よりも大成る寸法とされている。On the other hand, the vacuum heat insulating material 73 located behind the freezing compartment 18 has a rectangular shape as a whole. As shown in FIG. 6, the core material has a size larger than the rear projection area of the area including the cooler 38 and the blower 39.
【0038】ここで、これら真空断熱材の周縁部にはコ
ア材は存在しておらず、ガスバリアフィルムのみとなっ
ているため、真空断熱材の周縁部における熱移動は大き
くなり断熱性能は悪化する(これをヒートブリッジと云
う)。Here, since the core material does not exist at the peripheral portion of the vacuum heat insulating material, and only the gas barrier film is provided, heat transfer at the peripheral portion of the vacuum heat insulating material increases, and the heat insulating performance deteriorates. (This is called a heat bridge.)
【0039】これに対して、前述の如く真空断熱材73
のコア材を冷却器38と送風機39を含む領域の背方投
影面積よりも大成る寸法とすれば、係るヒートブリッジ
による悪影響を受けること無く、−30℃〜−35℃な
どの最も低温となる冷却器38の背方を効果的に断熱す
ることができるようになる。On the other hand, as described above, the vacuum heat insulating material 73 is used.
If the size of the core material is larger than the rear projection area of the region including the cooler 38 and the blower 39, the temperature is the lowest such as -30 ° C to -35 ° C without being affected by the heat bridge. The heat behind the cooler 38 can be effectively insulated.
【0040】特に、送風機39の背方もモータなどを設
置する関係から断熱箱体6の壁厚が薄くなるが、真空断
熱材73を設置することによって、断熱性能の低下を防
止することができようになる。In particular, the wall thickness of the heat-insulating box 6 is reduced due to the installation of a motor and the like behind the blower 39. However, by installing the vacuum heat-insulating material 73, it is possible to prevent the heat-insulating performance from lowering. Become like
【0041】他方、前記高温冷媒配管61は図9に示す
如く、向かって左側の真空断熱材71の後方の側板2A
内面を下方から上方に立ち上がり、前方にクランク状に
折れ曲がった後、上方に回って天板2D内面を右方に延
在する。そして、下方に回った後、後方にクランク状に
折れ曲がり、右側の真空断熱材71の後方の側板2A内
面を降下する。On the other hand, as shown in FIG. 9, the high-temperature refrigerant pipe 61 is provided on the left side plate 2A of the vacuum heat insulating material 71 on the left side.
The inner surface rises upward from below, bends forward in a crank shape, and then turns upward to extend rightward on the inner surface of the top plate 2D. Then, after turning downward, it is bent rearward in the shape of a crank, and descends on the inner surface of the side plate 2A behind the right vacuum insulating material 71.
【0042】高温冷媒配管61はそこから更に真空断熱
材73の側方の背板2C内面を立ち上がり、真空断熱材
73の上方に位置する背板2Cの内面において蛇行状に
屈曲した後、再び真空断熱材73の側方を降下する形状
とされている。The high-temperature refrigerant pipe 61 further rises from the inner surface of the back plate 2C on the side of the vacuum heat insulating material 73, bends in a meandering shape on the inner surface of the back plate 2C located above the vacuum heat insulating material 73, and then re-evacuates. The heat insulating material 73 has a shape that descends to the side.
【0043】このように、下方の冷却器38背方に取り
付けた真空断熱材73の上方の背板2C内面に図4、図
9の如く高温冷媒配管61を貼り付けているので、真空
断熱材71や73の存在に係わらず、高温冷媒配管61
の放熱能力(配管長)を確保して、冷却能力を維持する
ことができるようになる。As described above, since the high-temperature refrigerant pipe 61 is attached to the inner surface of the back plate 2C above the vacuum heat insulating material 73 attached behind the lower cooler 38 as shown in FIGS. Regardless of the presence of 71 or 73, the high-temperature refrigerant pipe 61
, The cooling capacity can be maintained by securing the heat radiation capacity (pipe length).
【0044】次に、上述の如き冷蔵庫1の断熱箱体6の
組立手順を説明する。先ず、外箱2の内面の上記各位置
に各真空断熱材71、71、72、73をそれぞれ貼り
付けると共に、各高温冷媒配管61、62もこの時点で
外箱2の内面に取り付ける。Next, the procedure for assembling the heat insulating box 6 of the refrigerator 1 as described above will be described. First, the vacuum heat insulators 71, 71, 72, 73 are respectively attached to the respective positions on the inner surface of the outer box 2, and the high-temperature refrigerant pipes 61, 62 are also attached to the inner surface of the outer box 2 at this time.
【0045】このとき、外箱2の背板2Cの上下方向の
略中央部左右(真空断熱材71の側方に位置する箇所)
には、図4、図10に示す如くウレタン注入口75、7
5が形成されており、更に、真空断熱材73を避けた位
置には複数の空気抜き孔76・・・が穿設されている。
尚、これら空気抜き孔76・・・は内側から空気が流通
可能な不織布テープなどで塞がれる。そして、前記高温
冷媒配管61はこれら注入口75、75、空気抜き孔7
6・・を避けて取り付けられる。At this time, a substantially central left and right portion of the back plate 2C of the outer box 2 in the vertical direction (a portion located on the side of the vacuum heat insulating material 71).
As shown in FIG. 4 and FIG.
5 are formed, and a plurality of air vent holes 76 are formed at positions avoiding the vacuum heat insulating material 73.
The air vent holes 76 are closed with a nonwoven tape or the like through which air can flow from the inside. The high-temperature refrigerant pipe 61 is connected to the inlets 75 and 75 and the air vent holes 7.
It can be installed avoiding 6 ...
【0046】また、内箱3の冷却器38後側に対応する
位置、即ち、真空断熱材73の前方に対応することにな
る位置には、図10に示す如く複数の空気抜き孔77・
・が穿設されており、この空気抜き孔77・・の外面
(外箱2側の面)も前述同様に空気が流通可能な不織布
テープなどで塞がれる。Further, at a position corresponding to the rear side of the cooler 38 of the inner box 3, that is, a position corresponding to the front of the vacuum heat insulating material 73, as shown in FIG.
Are formed, and the outer surface (the surface on the side of the outer box 2) of the air vent holes 77 is also closed with a nonwoven fabric tape or the like through which air can flow as described above.
【0047】一方、発泡断熱材を充填する際に用いられ
る発泡内治具78と発泡外治具(図示せず)の内、発泡
内治具78の前記内箱3の空気抜き孔77・・に対応す
ることになる位置には、図11、図12に示す如く碁盤
目状の空気抜き溝79が上記空気抜き孔77・・をカバ
ーできる範囲で形成されており、更に、この空気抜き溝
79内には発泡内治具78外に連通する空気抜き孔81
・・が複数穿設されている。これら空気抜き溝79と空
気抜き孔81・・とで空気抜き通路を構成する。On the other hand, of the inner foaming jig 78 and the outer foaming jig (not shown) used for filling the foamed heat insulating material, the air vent holes 77 of the inner box 3 of the inner foaming jig 78 are formed. As shown in FIGS. 11 and 12, a checkerboard-shaped air vent groove 79 is formed at a position where the air vent hole 77 can be covered, as shown in FIGS. Air vent hole 81 communicating with the outside of the foaming jig 78
・ ・ A plurality of holes are drilled. The air vent groove 79 and the air vent holes 81 constitute an air vent passage.
【0048】次ぎに、発泡断熱材4の充填を行う際に
は、内箱3を外箱2内に組み込む。このとき、真空断熱
材71、71の厚さ寸法は15mm、真空断熱材73の
厚さ寸法は20mmとされ、断熱箱体6の冷凍室18部
分(図8)の断熱厚さ寸法は側壁で45mm、背壁で4
0mm〜50mmとされている。他方、断熱箱体6の冷
蔵室8部分(図7)の断熱厚さ寸法は側壁で33mm、
背壁で30mm〜40mmとされているので、各真空断
熱材71、73の厚さ分を差し引いた断熱材4の厚さ寸
法は、冷凍室18部分と冷蔵室8部分とで略同等若しく
は近似した値となっている。Next, when filling the foamed heat insulating material 4, the inner box 3 is incorporated into the outer box 2. At this time, the thickness of the vacuum heat insulators 71, 71 is 15 mm, the thickness of the vacuum heat insulator 73 is 20 mm, and the heat insulation thickness of the freezing compartment 18 of the heat insulation box 6 (FIG. 8) 45mm, 4 on the back wall
It is 0 mm to 50 mm. On the other hand, the heat insulation thickness of the refrigerator compartment 8 (FIG. 7) of the heat insulation box 6 is 33 mm on the side wall,
Since the thickness of the back wall is set to 30 mm to 40 mm, the thickness of the heat insulating material 4 obtained by subtracting the thickness of each vacuum heat insulating material 71 and 73 is substantially the same or similar between the freezing compartment 18 and the refrigerator compartment 8. Value.
【0049】係る状態のものを図11に矢印で示す如く
開口を下側として発泡内治具78に被せ、外箱2の外側
から図示しない発泡外治具を宛う。この状態で、前記ウ
レタン注入口75、75からポリウレタン原液を注入
し、両箱2、3間に充填すると、原液は両箱2、3間の
下端部に一旦流下した後、或いは、流下しながら反応を
開始し、両箱2、3間を上方に向けて成長して行く。In this state, as shown by the arrow in FIG. 11, the opening is placed on the lower side of the foam inner jig 78 with the opening facing downward, and a foam outer jig (not shown) is addressed from the outside of the outer box 2. In this state, the polyurethane stock solution is injected from the urethane inlets 75, 75 and filled between the two boxes 2, 3, and the stock solution once flows down to the lower end between the two boxes 2, 3, or while flowing down. The reaction is started and the two boxes 2 and 3 grow upward.
【0050】この成長により追い立てられた両箱2、3
間の空気は外箱2の空気抜き孔76・・から図示しない
発泡外治具を経て排気されると共に、真空断熱材73の
下方(治具にセットされた状態で下方)に位置する部分
においては、内箱3に形成された空気抜き孔77・・か
ら発泡内治具78側に出て、前記空気抜き溝79−空気
抜き孔81の経路で外部に排気される。Both boxes 2, 3 driven by this growth
The air in between is exhausted from the air vent holes 76 of the outer box 2 via a foaming outer jig (not shown), and at a portion located below the vacuum heat insulating material 73 (below the jig set). The air exits from the air vent holes 77 formed in the inner box 3 to the foaming jig 78 side, and is exhausted to the outside through the path of the air vent groove 79 and the air vent hole 81.
【0051】このように本発明では、内箱3に空気抜き
孔77・・を形成しているので、外箱2の内面に真空断
熱材73が取り付けられているにも拘わらず、内箱3側
の空気抜き孔77・・から発泡断熱材4の反応成長時の
空気抜きを行うことができるようになり、発泡断熱材4
の未充填部や低密度箇所の発生を効果的に解消し、均一
な密度の発泡充填を実現することができるようになる。As described above, according to the present invention, since the air vent holes 77 are formed in the inner box 3, the inner box 3 side is formed despite the vacuum heat insulating material 73 being attached to the inner surface of the outer box 2. Of the foamed heat insulating material 4 during the reactive growth of the foamed heat insulating material 4 can be performed from the air vent holes 77.
This effectively eliminates the occurrence of unfilled portions and low-density portions, and makes it possible to achieve foam filling with uniform density.
【0052】各真空断熱材71、73の厚さ分を差し引
いた断熱材4の厚さ寸法は、前述の如く冷凍室18部分
と冷蔵室8部分とで略同等若しくは近似した値とされて
いるので、これによっても反応成長するポリウレタン原
液が両箱2、3間に略均等に回ることができるようにな
り、断熱材4を断熱箱体6の各部に略均一に充填するこ
とができるようになるものである。The thickness of the heat insulating material 4 minus the thickness of the vacuum heat insulating materials 71 and 73 is substantially the same or similar between the freezer compartment 18 and the refrigerator compartment 8 as described above. Therefore, the polyurethane stock solution, which grows by reaction, can be evenly circulated between the two boxes 2 and 3 so that the heat insulating material 4 can be almost uniformly filled in each part of the heat insulating box 6. It becomes.
【0053】尚、内箱3の空気抜き孔77・・の前方に
は断熱箱体6の完成後に冷却器38の図示しない後板
(鋼板製)が取り付けられ、隠蔽されると共に、その前
方には冷却器38が取り付けられることになる。A rear plate (not shown) (not shown) of the cooler 38 is attached to the front of the air vent holes 77 of the inner box 3 after the heat insulating box 6 is completed, and is concealed. A cooler 38 will be attached.
【0054】[0054]
【発明の効果】以上詳述した如く本発明によれば、外箱
と、内箱と、外箱の内箱側の面に取り付けられた真空断
熱材とを備え、両箱間に発泡断熱材を現場発泡方式にて
充填して成る断熱箱体において、前記内箱に発泡断熱材
充填用の空気抜き孔を形成したので、外箱の内箱側の面
に真空断熱材が取り付けられているにも拘わらず、内箱
側の空気抜き孔から発泡断熱材の反応成長時の空気抜き
を行うことができるようになり、発泡断熱材の未充填部
や低密度箇所の発生を効果的に解消し、均一な密度の発
泡充填を実現することができるようになるものである。As described above in detail, according to the present invention, there are provided an outer box, an inner box, and a vacuum heat insulating material attached to the inner box side surface of the outer box, and a foam heat insulating material between the two boxes. In an insulated box body filled with a foam in-situ method, an air vent hole for filling the foamed heat insulating material is formed in the inner box, so that the vacuum heat insulating material is attached to the inner box side surface of the outer box. Nevertheless, it is possible to bleed air during the reactive growth of foam insulation from the air bleed hole on the inner box side, effectively eliminating the occurrence of unfilled parts and low-density parts of foam insulation, uniform This makes it possible to realize foam filling with a high density.
【0055】請求項2の発明によれば、上記発泡断熱材
の充填時に内箱に当接する発泡内治具を備え、この発泡
内治具には、内箱の空気抜き孔に対応する位置に、当該
空気抜き孔に連通する空気抜き通路を形成したので、内
箱に形成した空気抜き孔からの排気を円滑に行い、発泡
断熱材の充填をより一層均一且つ良好に行うことができ
るようになるものである。According to the second aspect of the present invention, there is provided an inner foaming jig which comes into contact with the inner box at the time of filling the foamed heat insulating material, and the inner foaming jig is provided at a position corresponding to the air vent hole of the inner box. Since the air vent passage communicating with the air vent hole is formed, the exhaust from the air vent hole formed in the inner box is smoothly performed, and the filling of the foamed heat insulating material can be performed more uniformly and favorably. .
【図1】本発明を適用した実施例の冷蔵庫の正面図であ
る。FIG. 1 is a front view of a refrigerator according to an embodiment to which the present invention is applied.
【図2】扉を除く図1の冷蔵庫の正面図である。FIG. 2 is a front view of the refrigerator of FIG. 1 excluding a door.
【図3】図1の冷蔵庫の縦断側面図である。FIG. 3 is a vertical sectional side view of the refrigerator of FIG. 1;
【図4】図1の冷蔵庫の背面図である。FIG. 4 is a rear view of the refrigerator of FIG. 1;
【図5】図1の冷蔵庫のもう一つの縦断側面図である。FIG. 5 is another longitudinal side view of the refrigerator of FIG. 1;
【図6】図5のA−A線断面図である。FIG. 6 is a sectional view taken along line AA of FIG. 5;
【図7】図6のB−B線断面図である。FIG. 7 is a sectional view taken along the line BB of FIG. 6;
【図8】図6のC−C線断面図である。FIG. 8 is a sectional view taken along line CC of FIG. 6;
【図9】図1の冷蔵庫の透視分解斜視図である。FIG. 9 is a perspective exploded perspective view of the refrigerator of FIG. 1;
【図10】本発明の断熱箱体の発泡断熱材充填前の分解
斜視図である。FIG. 10 is an exploded perspective view of the heat insulating box of the present invention before filling with a foamed heat insulating material.
【図11】本発明の断熱箱体の発泡断熱材充填作業を説
明する図である。FIG. 11 is a view for explaining a foam insulation material filling operation of the heat insulation box of the present invention.
【図12】発泡内治具の要部拡大斜視図である。FIG. 12 is an enlarged perspective view of a main part of the inner foam jig.
1 冷蔵庫 2 外箱 3 内箱 4 ポリウレタン断熱材 18 冷凍室 38 冷却器 73 真空断熱材 75 ウレタン注入口 77 空気抜き孔 78 発泡内治具 79 空気抜き溝 81 空気抜き孔 DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Outer box 3 Inner box 4 Polyurethane insulation material 18 Freezer compartment 38 Cooler 73 Vacuum insulation material 75 Urethane inlet 77 Air vent hole 78 Foaming jig 79 Air vent groove 81 Air vent hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤堂 淳一 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 (72)発明者 茂木 秀文 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junichi Todo 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hidefumi Mogi 2-chome Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd.
Claims (2)
の面に取り付けられた真空断熱材とを備え、前記両箱間
に発泡断熱材を現場発泡方式にて充填して成る断熱箱体
において、 前記内箱には前記発泡断熱材充填用の空気抜き孔を形成
したことを特徴とする断熱箱体。1. An outer box, an inner box, and a vacuum heat insulating material attached to a surface of the outer box on the inner box side, wherein a foam heat insulating material is filled between the two boxes by an in-situ foaming method. A heat insulating box, comprising: an inner box formed with an air vent hole for filling the foamed heat insulating material.
泡内治具を備え、この発泡内治具には、前記内箱の空気
抜き孔に対応する位置に、当該空気抜き孔に連通する空
気抜き通路を形成したことを特徴とする請求項1の断熱
箱体の製造装置。2. An inner foaming jig which comes into contact with the inner box when filling the foamed heat insulating material, and the inner foaming jig has an air vent communicating with the air vent at a position corresponding to the air vent of the inner box. The apparatus for manufacturing a heat insulating box according to claim 1, wherein a passage is formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7656897A JPH10253246A (en) | 1997-03-11 | 1997-03-11 | Heat insulating box and its manufacturing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7656897A JPH10253246A (en) | 1997-03-11 | 1997-03-11 | Heat insulating box and its manufacturing apparatus |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004004018A Division JP2004116785A (en) | 2004-01-09 | 2004-01-09 | Manufacturing device for thermal insulation box |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10253246A true JPH10253246A (en) | 1998-09-25 |
Family
ID=13608846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7656897A Pending JPH10253246A (en) | 1997-03-11 | 1997-03-11 | Heat insulating box and its manufacturing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10253246A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002147942A (en) * | 2000-11-06 | 2002-05-22 | Matsushita Refrig Co Ltd | Refrigerator |
US20120052199A1 (en) * | 2011-04-18 | 2012-03-01 | General Electric Company | Method for insulating an appliance with an expanding insulating material |
-
1997
- 1997-03-11 JP JP7656897A patent/JPH10253246A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002147942A (en) * | 2000-11-06 | 2002-05-22 | Matsushita Refrig Co Ltd | Refrigerator |
US20120052199A1 (en) * | 2011-04-18 | 2012-03-01 | General Electric Company | Method for insulating an appliance with an expanding insulating material |
US8128992B1 (en) * | 2011-04-18 | 2012-03-06 | General Electric Company | Method for insulating an appliance with an expanding insulating material |
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A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040109 |