JPH03260586A - Method for preparing heat insulating door of refrigerator - Google Patents
Method for preparing heat insulating door of refrigeratorInfo
- Publication number
- JPH03260586A JPH03260586A JP5885490A JP5885490A JPH03260586A JP H03260586 A JPH03260586 A JP H03260586A JP 5885490 A JP5885490 A JP 5885490A JP 5885490 A JP5885490 A JP 5885490A JP H03260586 A JPH03260586 A JP H03260586A
- Authority
- JP
- Japan
- Prior art keywords
- door
- point
- stock solution
- door body
- injected
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000000243 solution Substances 0.000 claims abstract description 23
- 239000011550 stock solution Substances 0.000 claims description 39
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 7
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- 238000005187 foaming Methods 0.000 description 49
- 239000000463 material Substances 0.000 description 3
- 241000219122 Cucurbita Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Refrigerator Housings (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、冷蔵庫等の断熱扉の製造方法に関するもので
あり、特に発泡断熱材の原液を扉本体内部へ注入する方
法に関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a method of manufacturing an insulating door for a refrigerator, etc., and in particular, a method of injecting a stock solution of a foam insulating material into the inside of the door body. It is related to.
（従来の技術）
従来より、平面矩形状の箱体に形成された冷蔵庫等の扉
本体にウレタンフオーム等の発泡断熱材の原液（以下、
発泡原液という。）を注入する方法として、下記のよう
なものがある。(Prior Art) Conventionally, undiluted solution of foam insulation material such as urethane foam (hereinafter referred to as
It is called foaming stock solution. ) can be injected using the following methods.
すなわち、第５図に示すように、発泡原液Ｈの吐出部を
、水平に載置された扉本体１】０の内側面内側上方に配
し、扉本体１１０の内側面内側のＡ地点から他側面内側
のＢ地点へ水平に相対的に移動させつつ、発泡原液Ｈを
注入していた。そして、扉本体１１０内部へ注入された
発泡原液Ｈを平面から見るとほぼ帯状に充填されていた
。That is, as shown in FIG. 5, the discharge part of the foaming stock solution H is arranged above the inner side of the door body 1]0 placed horizontally, and from point A on the inner side of the inner side of the door body 110 to other places. Foaming stock solution H was injected while relatively moving horizontally to point B on the inside of the side surface. When viewed from above, the foaming stock solution H injected into the door main body 110 was filled in a substantially band-like shape.
（発明が解決しようとする課題）
上記従来の注入方法においては、発泡原液Ｈが扉本体１
１０内部で帯状に広がっているため、発泡原液Ｈの端部
から扉コーナ部１２４までの距離Ｃが、扉本体１１０の
中央部にある発泡原液Ｈから側壁までの距離りよりも長
くなっている。(Problems to be Solved by the Invention) In the conventional injection method described above, the foaming stock solution H is applied to the door body 1.
10, the distance C from the end of the foaming solution H to the door corner 124 is longer than the distance from the foaming solution H in the center of the door body 110 to the side wall. .
そのため、４つの扉コーナ部１２４への発泡原ＩＨの注
入量が少なくなり、未充填部が生じるという問題があっ
た。Therefore, there was a problem in that the amount of foaming material IH injected into the four door corner portions 124 was reduced, resulting in unfilled portions.
また、扉コーナ部１２４に発泡原液Ｈを充分に行き渡ら
せるために、発泡原液Ｈの注入量を多くすると、扉本体
１１０の中央部付近での発泡原液Ｈの量が過剰となって
、発泡原液Ｈが扉本体１１０外部に漏れたり、扉本体１
１０が膨れたり、変形したりするという問題があった。In addition, if the injection amount of the foaming solution H is increased in order to sufficiently spread the foaming solution H to the door corner part 124, the amount of the foaming solution H near the center of the door body 110 becomes excessive, and the foaming solution H is If H leaks to the outside of the door body 110 or the door body 1
There was a problem that 10 would swell or deform.
そして、コスト高にもなるという問題があった。There is also the problem of high costs.
そこで、本発明は、発泡原液Ｈの注入量を多くせず、扉
本体内部全面に発泡原液Ｈが充分に行き渡るようにした
冷蔵庫等の断熱扉の製造方法を提供するものである。Therefore, the present invention provides a method for manufacturing a heat insulating door for a refrigerator or the like in which the foaming solution H is sufficiently distributed over the entire inside of the door body without increasing the injection amount of the foaming solution H.
［発明の構成コ
（課題を解決するための手段）
本発明の冷蔵庫等の断熱扉の製造方法は、平面矩形状の
箱体に形成された冷蔵庫等の扉本体に対し発泡原液Ｈの
吐出部を相対的に移動させつつ、発泡断熱材の原液Ｈを
扉本体内部へ注入する方法であって、水平に載置された
扉本体の一側面内側に吐出部を位置させこの位置で原液
Ｈを所要時間注入し、吐出部を前記一側面内側から相対
向する他側面内側へ相対的に移動させつつ扉本体内部へ
原液Ｈを注入し、吐出部が他側面内側に位置した際にこ
の位置で原液Ｈを所要時間注入するものである。[Structure of the Invention (Means for Solving the Problems) The method for manufacturing a heat insulating door for a refrigerator or the like according to the present invention includes a method of manufacturing a heat insulating door for a refrigerator or the like according to the present invention, in which a foaming stock solution H is discharged from a door body of a refrigerator or the like formed in a planar rectangular box shape. In this method, the undiluted solution H of the foam insulation material is injected into the inside of the door body while moving the foam insulation material relatively.The dispensing part is located inside one side of the horizontally placed door body, and the undiluted solution H is injected at this position. Inject for the required time, inject the stock solution H into the door body while relatively moving the discharge part from the inside of the one side to the inside of the opposite side, and when the discharge part is located inside the other side, at this position. The stock solution H is injected for the required time.
（作 用）
上記構成の冷蔵庫等の断熱扉の製造方法であると、発泡
原液Ｈの吐出部を扉本体の一側面内側に位置させて停止
した状態で発泡原液Ｈを所要時間注入する。そして、吐
出部から発泡原液Ｈを噴射した状態で、扉本体の一側面
内側から他側面内側へ相対的に移動させる。この後、吐
出部が他側面内側に位置した時に吐出部を停止させ、こ
の停止状態で所要時間発泡原液Ｈを噴射させる。(Function) In the method for manufacturing a heat insulating door for a refrigerator or the like having the above configuration, the foaming stock solution H is injected for a required period of time while the discharge part of the foaming stock solution H is positioned inside one side of the door body and stopped. Then, with the foaming stock solution H being injected from the discharge part, the door body is relatively moved from the inside of one side to the inside of the other side. Thereafter, when the discharge part is located inside the other side, the discharge part is stopped, and the foaming stock solution H is injected for a required period of time in this stopped state.
以上の発泡原液Ｈの注入方法であると、扉本体の一側面
内側及び他側面内側の近傍付近の発泡原液Ｈの注入量が
、扉本体の中央部の注入量より多くなる。従って、注入
された発泡原液Ｈの端部から扉本体のコーナ部への距離
が扉本体の中央部にある発泡原ＩＨから側面までの距離
とほぼ等しくなる。扉本体内部にバランスよく発泡原液
Ｈを注入することができる。With the above injection method of foaming stock solution H, the amount of foaming stock solution H injected near the inside of one side of the door body and the inside of the other side is larger than the amount of injection at the center of the door body. Therefore, the distance from the end of the injected foaming stock H to the corner of the door body is approximately equal to the distance from the foaming material IH in the center of the door body to the side surface. The foaming stock solution H can be injected into the door body in a well-balanced manner.
（実施例）
本発明の一実施例を第１図〜第４図に基づいて説明する
。(Example) An example of the present invention will be described based on FIGS. 1 to 4.
符号１０は、冷蔵庫に使用される冷蔵庫室の扉である。Reference numeral 10 is a door of a refrigerator compartment used in a refrigerator.
この扉１０は、平面矩形状であって、４つの側壁１２，
１４．１６．１８より囲まれ、底面２０を有し、上面が
開口している。この底面２０が、冷蔵庫に取付けた場合
の前面に当る。This door 10 has a rectangular planar shape and has four side walls 12,
14, 16, and 18, has a bottom surface 20, and has an open top surface. This bottom surface 20 corresponds to the front surface when attached to a refrigerator.
符号２２は、発泡原液Ｈを注入するためのノズル型の吐
出部である。この吐出部２２は、発泡原液Ｈの吐出口を
下方に向けて直線移動できるようにしている。また、こ
の吐出部２２は、発泡原液Ｈの吐出するタイミング及び
移動速度を制御装置によって制御できる。Reference numeral 22 denotes a nozzle-shaped discharge section for injecting the foaming stock solution H. This discharge part 22 is configured to be able to move in a straight line with its discharge port for the foaming stock solution H directed downward. Moreover, the timing and movement speed at which the foaming stock solution H is discharged from the discharge section 22 can be controlled by a control device.
以上の構成の吐出部２２を用いて、扉１０へ発泡原液Ｈ
を注入する方法を下記に説明する。Using the discharge unit 22 configured as described above, the foaming stock solution H is delivered to the door 10.
The method of injecting is explained below.
扉１０の開口部を上にして水平に載置する。次に、吐出
部２２を扉１０の側壁１２内側の中央部、すなわち、Ａ
地点に停止させる。この停止状態で発泡原液Ｈを０，２
秒〜０．５秒噴射させる。そして、吐出部２２は、発泡
原液Ｈを噴射しつつ、Ａ地点から他側面ｉ４の内側、す
なわちＢ地点まで側壁Ｉ６と平行に約２秒で移動させる
。そして、吐出部２２がＢ地点まで移動すると、Ｂ地点
に停止した状態で再び発泡原液Ｈを０．２秒〜０．５秒
噴射させ、この後、発泡原液Ｈの噴射を停止させる。以
上の注入方法において、吐出部２２の速度と扉ＩＯでの
吐出部２２の位置をグラフに示すと、第２図のように、
はぼ台形状となる。扉工０での吐出部２２の位置関係と
発泡原液Ｈの吐出量の関係をグラフに示すと、第３図の
ように、Ａ地点近傍とＢ地点近傍での吐出量が、扉本体
の中央部よりも多くなっている。Place the door 10 horizontally with the opening facing upward. Next, the discharge part 22 is connected to the central part inside the side wall 12 of the door 10, that is, the A
Stop at the spot. In this stopped state, add 0.2% of the foaming stock solution H.
Spray for 0.5 seconds. Then, the discharge part 22 moves the foaming stock solution H from the point A to the inside of the other side surface i4, that is, to the point B, in about 2 seconds in parallel to the side wall I6 while injecting the foaming stock solution H. When the discharge unit 22 moves to point B, the foaming stock solution H is again injected for 0.2 to 0.5 seconds while stopped at the B point, and then the injection of the foaming stock solution H is stopped. In the above injection method, when the speed of the discharge part 22 and the position of the discharge part 22 at the door IO are shown in a graph, as shown in FIG.
It becomes a trapezoid shape. When the relationship between the positional relationship of the discharge part 22 and the discharge amount of the foaming solution H at door work 0 is shown in a graph, as shown in Figure 3, the discharge amount near point A and point B is different from the center of the door body. The number is higher than that of the department.
この発泡原ｆｉＨの注入状態を扉ＩＯの平面から眺める
と、第４図に示すように、Ａ地点での発泡原液Ｈの量と
Ｂ地点での発泡原液Ｈの量が多くなっているため、はぼ
瓢箪型となっている。Ａ地点から扉（０のコーナ部２４
までの距離、すなわち、第４図において、距離Ｃと扉本
体の中央部における発泡原液Ｈの側壁１６までの距ＨＤ
の関係はほぼ等しくなる。When looking at the injection state of the foaming material fiH from the plane of the door IO, as shown in Fig. 4, the amount of foaming stock solution H at point A and the amount of foaming stock solution H at point B are large, so It is shaped like a gourd. From point A to the door (corner part 24 of 0
In other words, in FIG. 4, the distance C and the distance HD to the side wall 16 of the foaming solution H at the center of the door body
The relationship between them is almost equal.
これにより、扉本体１０での発泡原液Ｈの注入状態は、
バランスよく配される。従って、発泡原液Ｈを発泡させ
た後の扉ｌＯ内部の状態は、４つのコーナ部２４で未充
填部がなく、また、中央部近傍での異常な膨れ、変形等
の問題は生じず、ボイド等の発生も防止できる。更に、
従来のようにコーナ部２４における未充填部での心配が
なくなるため、発泡原液Ｈの注入量を３％〜５％低減す
ることができ、コストダウンとなる。As a result, the injection state of the foaming stock solution H in the door body 10 is as follows.
Well balanced. Therefore, the condition inside the door 10 after foaming the foaming stock solution H is such that there are no unfilled parts at the four corners 24, and there are no problems such as abnormal swelling or deformation near the center, and there are no voids. It is also possible to prevent the occurrence of such problems. Furthermore,
Since there is no need to worry about unfilled portions in the corner portions 24 as in the prior art, the injection amount of the foaming stock solution H can be reduced by 3% to 5%, resulting in cost reduction.
下記に、４００１の冷蔵庫に使用される冷蔵庫扉と冷凍
庫扉へ発泡原液Ｈを注入した時の注入量を、従来例と本
実施例と比較しつつ第１表に示す。Table 1 below shows the injection amount when the foaming stock solution H was injected into the refrigerator door and freezer door used in the 4001 refrigerator, comparing the conventional example and this example.
第１表
以上により、本実施例の断熱扉の製造方法であると、扉
１０内部へ発泡原液Ｈを注入する量を従来のものより少
なくでき、コストダウンとなる。As shown in Table 1 and above, in the method for manufacturing the heat insulating door of this embodiment, the amount of foaming solution H to be injected into the inside of the door 10 can be reduced compared to the conventional method, resulting in cost reduction.
なお、上記実施例では、吐出部を移動させたが、これに
代えて扉ＩＯを移動させてもよい。In the above embodiment, the discharge section is moved, but the door IO may be moved instead.
［発明の効果］
本発明の冷蔵庫等の断熱扉の製造方法であると、扉本体
のコーナ部における未充填部がなくなり、扉本体内部に
バランスよく発泡原液を注入できる。また、ボイド等の
発生も防止できる。[Effects of the Invention] According to the method of manufacturing a heat insulating door for a refrigerator or the like of the present invention, there are no unfilled portions at the corners of the door body, and the foaming stock solution can be injected into the door body in a well-balanced manner. Furthermore, the occurrence of voids and the like can also be prevented.
２０・・・・・・底面 ２２・・・・・・吐出部 Ｈ・・・・・・発泡原液20...Bottom surface 22...Discharge part H... Foaming stock solution
第１図は、本発明の一実施例を示すものであって、扉に
吐出部を移動させつつ注入している状態を示す説明図、
第２図は、吐出部の速度と扉での吐出部の位置関係を示
すグラフ、
第３図は、発泡原液の吐出量と扉での吐出部の位置関係
を示すグラフ、
第４図は、発泡原液を注入した状態の扉の平面図、
第５図は、従来の注入方法により発泡原液を注入した状
態の扉の平面図である。Fig. 1 shows an embodiment of the present invention, and is an explanatory diagram showing a state in which injection is performed while moving the dispensing part to the door. Fig. 2 shows the speed of the dispensing part and the discharge at the door. Figure 3 is a graph showing the discharge amount of the foaming stock solution and the positional relationship of the discharge part on the door. Figure 4 is a plan view of the door with the foaming stock solution injected. The figure is a plan view of the door in a state where a foaming stock solution is injected using a conventional injection method.
Claims (1)
対し発泡原液の吐出部を相対的に移動させつつ、発泡断
熱材の原液を扉本体内部へ注入する方法であって、 水平に載置された扉本体の一側面内側に吐出部を位置さ
せこの位置で原液を所要時間注入し、吐出部を前記一側
面内側から相対向する他側面内側へ相対的に移動させつ
つ、扉本体内部へ原液を注入し、 吐出部が他側面内側に位置した際に、この位置で原液を
所要時間注入する ことを特徴とする冷蔵庫等の断熱扉の製造方法。[Scope of Claims] 1. Injecting the stock solution of the foam insulation material into the door body while moving the discharge part of the foam stock solution relative to the door body of a refrigerator or the like formed in a planar rectangular box shape. The method comprises: locating a discharge part on the inside of one side of a door body placed horizontally, injecting the stock solution for a required period of time at this position, and moving the discharge part from the inside of the one side to the inside of the opposite side. A method for manufacturing an insulated door for a refrigerator, etc., characterized in that the undiluted solution is injected into the inside of the door body while moving the undiluted solution to the inside of the door body, and when the discharge part is located on the inside of the other side, the undiluted solution is injected at this position for a required period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2058854A JP2530036B2 (en) | 1990-03-09 | 1990-03-09 | Manufacturing method of heat insulation doors such as refrigerators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2058854A JP2530036B2 (en) | 1990-03-09 | 1990-03-09 | Manufacturing method of heat insulation doors such as refrigerators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03260586A true JPH03260586A (en) | 1991-11-20 |
| JP2530036B2 JP2530036B2 (en) | 1996-09-04 |
Family
ID=13096276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2058854A Expired - Fee Related JP2530036B2 (en) | 1990-03-09 | 1990-03-09 | Manufacturing method of heat insulation doors such as refrigerators |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530036B2 (en) |
-
1990
- 1990-03-09 JP JP2058854A patent/JP2530036B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2530036B2 (en) | 1996-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |