JPS6123371Y2 - - Google Patents
Info
- Publication number
- JPS6123371Y2 JPS6123371Y2 JP1975024013U JP2401375U JPS6123371Y2 JP S6123371 Y2 JPS6123371 Y2 JP S6123371Y2 JP 1975024013 U JP1975024013 U JP 1975024013U JP 2401375 U JP2401375 U JP 2401375U JP S6123371 Y2 JPS6123371 Y2 JP S6123371Y2
- Authority
- JP
- Japan
- Prior art keywords
- foaming
- jig
- door
- heat insulating
- box
- 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.)
- Expired
Links
- 238000005187 foaming Methods 0.000 claims description 29
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 6
- 239000011496 polyurethane foam Substances 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
Landscapes
- Refrigerator Housings (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は、冷蔵庫等に装着され、かつ内部にポ
リウレタンフオーム等の発泡性断熱材が充填され
た扉を形成する治具の改良に関するもので、断熱
層に生じる歪み、そり、たわみを防止することを
目的の一つとするものである。[Detailed description of the invention] The present invention relates to an improvement of a jig for forming a door that is attached to a refrigerator or the like and whose interior is filled with a foam insulation material such as polyurethane foam. One of the purposes is to prevent warpage and deflection.
従来、冷蔵庫等に使用される扉は周知の如く、
ほぼ直方体の箱体を上下治具により押圧して前記
箱体内にポリウレタンフオーム等の断熱材を充填
発泡することにより構成されていた。ところが、
この現場発泡の際、ウレタン反応熱および治具の
熱によつてフオーム自体が高温となり、扉を治具
から取出したとき一般に室温に冷却されるため、
この温度差によりポリウレタンの膨張収縮をもた
らして扉にそり、たわみ、あるいは歪等が発生す
る欠点を有していた。 As is well known, doors used for refrigerators etc.
It was constructed by pressing a substantially rectangular parallelepiped box with upper and lower jigs and filling and foaming a heat insulating material such as polyurethane foam inside the box. However,
During this in-situ foaming, the foam itself becomes high temperature due to the heat of the urethane reaction and the heat of the jig, and when the door is removed from the jig, it is generally cooled to room temperature.
This temperature difference causes the polyurethane to expand and contract, resulting in the door being warped, bent, or distorted.
本考案は上記従来の治具にみられる欠点を除去
するものである。 The present invention eliminates the drawbacks of the conventional jigs mentioned above.
以下、本考案をその一実施例を示す添付図面を
参考に説明する。 Hereinafter, the present invention will be described with reference to the accompanying drawings showing one embodiment thereof.
図において、１は冷蔵庫（図示せず）の前面開
口周縁部に開閉自在に枢着される断熱扉の本体
で、長方形の外板２を折曲げて周囲にフランジ
２′を設け一面を開口面とした直方体状の箱体Ａ
を形成し、この箱体Ａを下発泡治具３および上発
泡治具４にて押圧し、内部にポリウレタンフオー
ムを充填発泡することにより断熱層５が形成され
る。６，７はそれぞれ上発泡治具４に断熱層５内
を対角線状に交差するように設けられた突起で、
発泡完了後に断熱層５に対角線状の切欠６′，
７′を形成する。 In the figure, reference numeral 1 denotes the main body of a heat insulating door that is pivotally attached to the periphery of the front opening of a refrigerator (not shown) so as to be openable and closable.A rectangular outer panel 2 is bent, a flange 2' is provided around the periphery, and one side is the opening surface. A rectangular parallelepiped box A
A heat insulating layer 5 is formed by pressing this box A with a lower foaming jig 3 and an upper foaming jig 4, and filling and foaming polyurethane foam inside. 6 and 7 are protrusions provided on the upper foaming jig 4 so as to cross diagonally within the heat insulating layer 5, respectively;
After foaming is completed, diagonal notches 6' are formed in the heat insulating layer 5.
7' is formed.
上記構成において、発泡時に極めて高温となつ
たポリウレタンフオームが両発泡治具３，４から
取出されて室温に冷却されるとき、フオーム自体
に体積の増減があると前記切欠６′，７′によつて
それが吸収される。したがつて、断熱扉本体１の
そり、たわみ、歪が防止でき、また、前記切欠
６′，７′を上発泡治具４に設けるだけで作業工程
に何ら支障をもたらすこともなく、同時にポリウ
レタンの節減にもなる。 In the above structure, when the polyurethane foam, which has become extremely hot during foaming, is taken out from the foaming jigs 3 and 4 and cooled to room temperature, if the foam itself changes in volume, the notches 6' and 7' Then it gets absorbed. Therefore, warping, deflection, and distortion of the heat insulating door body 1 can be prevented, and simply by providing the cutouts 6' and 7' in the upper foaming jig 4, there will be no hindrance to the work process, and at the same time, polyurethane It also saves money.
なお上記の切欠６′，７′は、Ｘ字状をなす突起
によつて断熱層５内に対角状に形成されるので、
断熱扉本体１の広い範囲に亘り、そり・歪みの吸
収を行う効果を奏する。 Note that the above-mentioned notches 6' and 7' are formed diagonally in the heat insulating layer 5 by X-shaped projections, so
This has the effect of absorbing warpage and distortion over a wide range of the heat insulating door body 1.
上記実施例より明らかなように、本考案の扉の
断熱材発泡用治具は、扉を構成する一面を開口面
とした直方体状の箱体を上記開口面を上向きにし
て収納する下発泡治具と、上記箱体内にポリウレ
タンフオーム等の断熱材を充填させるため上記下
発泡治具との間で上記箱体を密封保持する上発泡
治具とより成り、上記上発泡治具の下面に、前記
箱体内でＸ字状に交差する突起を設けたことを特
徴とするものでこれにより形成される扉は、前記
Ｘ字状の突起により断熱層に切欠されるので冷却
時生じるそり、たわみ、ひずみが吸収されるた
め、品質の安定化がはかれ、また発泡治具による
作業工程は何ら支障をきたすことなく、断熱材の
節減にもなる等、種々の利点を有するものであ
る。 As is clear from the above embodiments, the jig for foaming heat insulating material for doors of the present invention is a lower foaming jig for storing a rectangular parallelepiped box with one side of the opening facing upward, constituting the door. and an upper foaming jig that seals and holds the box body between the lower foaming jig and the lower foaming jig in order to fill the box body with a heat insulating material such as polyurethane foam, and on the lower surface of the upper foaming jig, The door is characterized by having protrusions that intersect in an X-shape inside the box body, and the door formed by this is free from warpage and deflection that occur during cooling, since the X-shaped protrusions cut out the heat insulating layer. Since strain is absorbed, the quality is stabilized, and the work process using the foaming jig is not hindered, and the amount of heat insulating material can be saved.
第１図は本考案の一実施例における扉の断熱材
発泡用治具によつて得られる断熱扉の斜視図、第
２図は第１図における断熱扉の−′線による
発泡時の概略断面図である。
Ａ……直方体（箱体）３……下発泡治具、４…
…上発泡治具、５……断熱層、６，７……Ｘ字状
の突起、６′，７′……切欠。
Fig. 1 is a perspective view of an insulating door obtained by a jig for foaming door insulating material in an embodiment of the present invention, and Fig. 2 is a schematic cross-section of the insulating door taken along the -' line in Fig. 1 during foaming. It is a diagram. A... Rectangular parallelepiped (box) 3... Lower foaming jig, 4...
...Top foaming jig, 5...Insulating layer, 6, 7...X-shaped projections, 6', 7'...Notches.
Claims (1)
体を上記開口面を上向きにして収納する下発泡治
具と、上記箱体内にポリウレタンフオーム等の断
熱材を充填発泡させるため上記下発泡治具との間
で上記箱体を密封保持する上発泡治具とより成
り、上記上発泡治具の下面に、上記箱体内でＸ字
状に交差する突起を設けたことを特徴とする扉の
断熱材発泡用治具。 A lower foaming jig for storing a rectangular parallelepiped-shaped box with one side opening facing upward that constitutes the door, and a lower foaming jig for filling and foaming a heat insulating material such as polyurethane foam into the box. A door comprising an upper foaming jig for sealingly holding the box body between the upper foaming jig and the upper foaming jig, the upper foaming jig having protrusions that intersect in an X-shape within the box body on the lower surface thereof. Jig for foaming insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975024013U JPS6123371Y2 (en) | 1975-02-20 | 1975-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975024013U JPS6123371Y2 (en) | 1975-02-20 | 1975-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51105070U JPS51105070U (en) | 1976-08-23 |
| JPS6123371Y2 true JPS6123371Y2 (en) | 1986-07-14 |
Family
ID=28120012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975024013U Expired JPS6123371Y2 (en) | 1975-02-20 | 1975-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6123371Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843057A (en) * | 1971-09-30 | 1973-06-22 |
-
1975
- 1975-02-20 JP JP1975024013U patent/JPS6123371Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843057A (en) * | 1971-09-30 | 1973-06-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51105070U (en) | 1976-08-23 |
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