JP4969401B2 - Thermal insulation panel - Google Patents

Thermal insulation panel Download PDF

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JP4969401B2
JP4969401B2 JP2007274641A JP2007274641A JP4969401B2 JP 4969401 B2 JP4969401 B2 JP 4969401B2 JP 2007274641 A JP2007274641 A JP 2007274641A JP 2007274641 A JP2007274641 A JP 2007274641A JP 4969401 B2 JP4969401 B2 JP 4969401B2
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heat insulating
foam
panel
insulating material
space
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JP2009101561A (en
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彦千 松井
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Nikkei Panel System Co Ltd
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Nikkei Panel System Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/581—Closure devices for pour holes

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

この発明は、断熱パネルに関するもので、更に詳細には、一対の表面板と、両表面板の辺部間に装着される枠材とで形成される空間内に、例えば発泡ウレタンフォーム等の発泡断熱材を注入・充填してなる断熱パネルに関するものである。   The present invention relates to a heat insulating panel, and more specifically, in a space formed by a pair of surface plates and a frame member attached between the side portions of both surface plates, for example, foamed urethane foam or the like. The present invention relates to a heat insulating panel formed by injecting and filling a heat insulating material.

従来、この種の断熱パネルの製造方法においては、枠材に設けられた注入用孔から枠材の空間内に注入される発泡断熱材が発泡して注入用孔から外部への露出を防止するために、注入用孔を閉塞する可撓性を有する膜材を、枠材の空間側に設けると共に、この膜材の下部のみが枠材に接着して設け、空間内に発泡断熱材が発泡・充填された際に、膜材によって孔を閉塞することにより、発泡断熱材の外部への露呈を防止する断熱パネルの製造方法が知られている（例えば、特許文献１参照）。
特開２００６−１２６３号公報（特許請求の範囲、図４） Conventionally, in this type of heat insulation panel manufacturing method, the foamed heat insulating material injected into the space of the frame material from the injection hole provided in the frame material is foamed to prevent exposure from the injection hole to the outside. Therefore, a flexible film material that closes the injection hole is provided on the space side of the frame material, and only the lower part of this film material is adhered to the frame material, and the foam insulation is foamed in the space. -A method of manufacturing a heat insulating panel that prevents the foamed heat insulating material from being exposed to the outside by closing the hole with a membrane material when filled (see, for example, Patent Document 1).
JP 2006-1263 A (Claims, FIG. 4)

しかしながら、上記従来の断熱パネルの製造方法においては、発泡断熱材の充填時に発泡断熱材によって膜材を枠材側に確実に押圧することができない場合があり、注入用孔から発泡断熱材が外部へ露出するというおそれがあった。特に、パネル同士を接合するために凹条部を設けた枠材を有する断熱パネルにおいては、膜材によって注入用孔を閉塞できない不都合があった。   However, in the conventional method for manufacturing a heat insulating panel, there is a case where the foam heat insulating material cannot be reliably pressed against the frame material side by the foam heat insulating material when the foam heat insulating material is filled. There was a risk of exposure. In particular, in a heat insulating panel having a frame member provided with a concave portion to join the panels, there is a disadvantage that the injection hole cannot be closed by the film material.

この発明は、上記事情に鑑みてなされたもので、発泡断熱材の充填に伴い膜材を確実に押圧して枠材に形成された注入用孔を閉塞する断熱パネルを提供することを目的とするものである。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a heat insulating panel that reliably presses the membrane material with the filling of the foam heat insulating material and closes the injection holes formed in the frame material. To do.

上記課題を解決するために、請求項１記載の発明は、 一対の表面板と、上記両表面板の辺部間に装着される枠材と、上記両表面板と枠材とで形成される空間内に、上記枠材に設けられた注入用孔を介して挿入されるノズルにより注入・充填される発泡断熱材とからなる断熱パネルであって、 上記注入用孔を閉塞すべく可撓性を有する薄い膜材を上記枠材の空間側に設けると共に、膜材の下部を枠材に接着して設け、かつ、上記膜材の上端に下方に向かって折り曲げられた折曲片を設けてなり、 上記ノズルにより上記膜材を空間側に変位して発泡断熱材が上記空間内に注入され発泡充填された際に、発泡断熱材が上記折曲片を押圧して上記膜材が上記注入用孔を閉塞する、ことを特徴とする。   In order to solve the above-mentioned problem, the invention according to claim 1 is formed of a pair of surface plates, a frame member mounted between the side portions of the both surface plates, and the both surface plates and the frame member. A heat insulation panel comprising a foam heat insulating material that is injected and filled by a nozzle inserted through an injection hole provided in the frame material in the space, and is flexible so as to close the injection hole A thin film material having a thickness is provided on the space side of the frame material, and a lower part of the film material is bonded to the frame material, and a bent piece bent downward is provided at the upper end of the film material. When the film material is displaced to the space side by the nozzle and the foam heat insulating material is injected into the space and filled with foam, the foam heat insulating material presses the bent piece and the film material is injected into the space. The hole is closed.

この場合、上記折曲片は、上端が下方に向かって折り曲げられていれば、任意でよいが、折曲片を複数回折曲して形成する方が好ましい（請求項２）。   In this case, the bent piece may be arbitrary as long as the upper end is bent downward, but it is preferable that the bent piece is formed by bending a plurality of pieces (Claim 2).

（１）請求項１記載の発明によれば、空間内に発泡断熱材が注入され発泡充填された際に、発泡断熱材がその膨張時に折曲片に接触してこの折曲片を確実に押圧する。これにより膜材が注入用孔を確実に閉塞することができるので、発泡断熱材の外部への露呈を防止することができると共に、パネルの美観の向上を図ることができる。   (1) According to the first aspect of the present invention, when the foam heat insulating material is injected into the space and filled with foam, the foam heat insulating material comes into contact with the bent piece during its expansion to ensure the bent piece. Press. As a result, the film material can surely block the injection hole, so that the foamed heat insulating material can be prevented from being exposed to the outside, and the appearance of the panel can be improved.

（２）請求項２記載の発明によれば、膜材の折曲片を複数回折曲して形成することで、折曲片と発泡断熱材との接触面積を広くすることができるので、上記（１）に加えて更に、膜材を枠材側へ確実に変位させて注入用孔を閉塞することができる。この場合、１つの折曲部が発泡断熱材の膨張による押圧で伸びきったとしても、残りの折曲部により押圧を受けることができる。   (2) According to the invention described in claim 2, the contact area between the bent piece and the foamed heat insulating material can be widened by forming a plurality of bent pieces of the membrane material, so that the above-mentioned In addition to (1), the injection hole can be closed by reliably displacing the membrane material to the frame material side. In this case, even if one bent portion is fully extended by the pressure due to the expansion of the foam heat insulating material, the remaining bent portion can receive the pressure.

以下に、この発明に係る断熱パネルの最良の実施形態を添付図面に基づいて詳細に説明する。   Hereinafter, the best embodiment of a heat insulation panel according to the present invention will be described in detail with reference to the accompanying drawings.

図１は、この発明に係る断熱パネルの平積み状態の一例を示す概略断面図、図２は、図１の要部拡大断面図、図３は、この発明に係る断熱パネルの一例を示す斜視図、図４は、図３のＩ−Ｉ線に沿う拡大断面図（ａ）及び（ａ）のII矢視図（ｂ）、図５は、断熱パネルの要部拡大断面図である。   1 is a schematic cross-sectional view showing an example of a stacked state of heat insulation panels according to the present invention, FIG. 2 is an enlarged cross-sectional view of a main part of FIG. 1, and FIG. 3 is a perspective view showing an example of a heat insulation panel according to the present invention. FIGS. 4 and 4 are enlarged cross-sectional views (a) and II (b) of FIG. 3 taken along line II, and FIG. 5 is an enlarged cross-sectional view of the main part of the heat insulating panel.

上記断熱パネルＰは、図３ないし図６に示すように、一対の鋼板製の表面板１０と、両表面板１０の辺部間に装着されるプラスチック製例えば塩化ビニル製の直状枠材２０及びコーナー枠材２１と、両表面板１０と枠材２０，２１とで形成される空間３０内に注入・充填される発泡断熱材４０とで主に構成されている。   As shown in FIGS. 3 to 6, the heat insulating panel P includes a pair of surface plates 10 made of steel plates and a straight frame member 20 made of plastic, for example, made of vinyl chloride, which is mounted between the side portions of both surface plates 10. And the corner frame member 21 and the foam heat insulating material 40 injected and filled in the space 30 formed by the both surface plates 10 and the frame members 20 and 21.

この場合、上記表面板１０の辺部に折曲された折片１１が、直状枠材２０及びコーナー枠材２１の上下端部にそれぞれ設けられた嵌合溝２２内に僅かな隙間をおいて嵌挿されて表面板１０と枠材２０，２１とが固定されている。   In this case, the folded pieces 11 bent at the side portions of the surface plate 10 have a slight gap in the fitting grooves 22 provided at the upper and lower ends of the straight frame member 20 and the corner frame member 21, respectively. The surface plate 10 and the frame members 20 and 21 are fixed by being inserted.

また、直状枠材２０の側面には、断熱パネルＰ同士を接合するために設けられる凹条部又は凸条部（図面では凹条部２３を示す）が設けられている。この凹条部２３は、開口側が拡開するテーパ状に形成されている。なお、凸条部を設ける場合は、先端が狭小なテーパ状に形成される。   Further, the side surface of the straight frame member 20 is provided with a concave portion or a convex portion (indicated in the drawing, the concave portion 23) provided for joining the heat insulating panels P to each other. The concave line portion 23 is formed in a tapered shape in which the opening side is expanded. In addition, when providing a protruding item | line part, the front-end | tip is formed in a narrow taper shape.

上記のように構成される直状枠材２０の中間部における凹条部２３の底部２４には、不活性ガス例えば窒素（Ｎ２）ガス及び発泡断熱材４０の注入用孔２５が設けられている。また、直状枠材２０の空間３０側すなわち内方側には、注入用孔２５を閉塞すべく可撓性を有する薄い膜材５０が配設されている。 An insulative gas, for example, nitrogen (N 2 ) gas and an injection hole 25 for the foam heat insulating material 40 are provided in the bottom 24 of the recess 23 in the middle of the straight frame member 20 configured as described above. Yes. Further, on the space 30 side, that is, the inner side of the straight frame member 20, a flexible thin film member 50 is disposed so as to close the injection hole 25.

なお、この実施形態では、上記注入用孔２５を、図１及び図２に示すように、対向する両方の直状枠材２０に設けた場合について説明してあるが、必ずしも両方の直状枠材２０に設ける必要はなく、少なくとも一方の直状枠材２０に設けられていればよい。   In this embodiment, the case where the injection hole 25 is provided in both of the opposing straight frame members 20 as shown in FIGS. 1 and 2 is described. However, both the straight frames are not necessarily provided. It is not necessary to provide in the material 20, and it should just be provided in the at least one straight frame material 20. FIG.

上記膜材５０は、図４及び図５に示すように、注入用孔２５及びその周辺を覆う長さのピース状の例えば紙製材料にて形成されており、直状枠材２０の凹条部２３の内面側に沿って断面略コ字状に形成される基部５１と、この基部５１の一辺すなわち下方に位置する辺から直状枠材２０に沿って延在する下部５２と、基部５１の他辺すなわち上方に位置する辺から断熱パネルＰの空間３０側に向かって複数回（この場合３回）折曲される折曲片５３とで形成されている。   As shown in FIGS. 4 and 5, the film material 50 is formed of, for example, a paper material having a length covering the injection hole 25 and the periphery thereof, and the concave shape of the straight frame material 20. A base 51 formed in a substantially U-shaped cross section along the inner surface side of the portion 23, a lower portion 52 extending along the straight frame member 20 from one side of the base 51, that is, a side located below, and a base 51 It is formed of a bent piece 53 that is bent a plurality of times (in this case, three times) toward the space 30 side of the heat insulating panel P from the other side, that is, the upper side.

このように形成される膜材５０は、下部５２のみが例えば接着剤５４によって直状枠材２０に接着され、基部５１及び折曲片５３が自由に変位し得るようになっており、上記空間３０内に不活性ガスであるＮ２ガスを注入する場合や発泡断熱材４０を注入する場合に、注入用孔２５を介して断熱パネルＰの空間３０内に、Ｎ２ガス供給用ノズル６０又は発泡断熱材供給用ノズル７０が挿入されると、膜材５０は、図４（ａ）の二点鎖線及び図６（ａ）に示すように、空間３０の内方側に変位してＮ２ガス又は発泡断熱材４０の注入を可能にする。そして、発泡断熱材４０が注入されて発泡・充填された際に、図６（ｂ）に示すように、発泡断熱材４０は下部から充填されるので、膜材５０の基部５１及び折曲片５３は発泡断熱材４０によって下方側及び内方側から押されて枠材側へ変位し注入用孔２５を閉塞する（図６（ｃ）参照）。これにより、発泡断熱材４０の外部への露呈が防止される。なお、この場合、膜材５０に折曲片５３を設けることにより、充填された発泡断熱材４０が膨張する際に折曲片５３と接触し、これを枠材２０側に押圧するので、膜材５０を枠材側へ確実に変位させることができる。 In the film material 50 formed in this way, only the lower part 52 is bonded to the straight frame member 20 by, for example, an adhesive 54 so that the base 51 and the bent piece 53 can be freely displaced, and the space When injecting N 2 gas, which is an inert gas, or injecting the foam heat insulating material 40, the N 2 gas supply nozzle 60 or the inside of the space 30 of the heat insulating panel P through the injection hole 25 is used. When foam insulation supply nozzle 70 is inserted, film material 50, as shown in two-dot chain line and the diagram of FIG 4 (a) 6 (a) , displaced inward side of the space 30 N 2 Allows injection of gas or foam insulation 40. When the foam heat insulating material 40 is injected and foamed and filled, as shown in FIG. 6B, the foam heat insulating material 40 is filled from below, so that the base 51 and the bent piece of the film material 50 53 is pushed from the lower side and the inner side by the foam heat insulating material 40 and is displaced to the frame material side to close the injection hole 25 (see FIG. 6C). Thereby, exposure to the exterior of the foam heat insulating material 40 is prevented. In this case, by providing the folded piece 53 on the membrane material 50, the filled foam heat insulating material 40 comes into contact with the folded piece 53 when it expands and presses it toward the frame member 20 side. The material 50 can be reliably displaced to the frame material side.

また、コーナー枠材２１の側面には、直状枠材２０に設けられた凹条部又は凸条部に連なる凹条部又は凸条部（図面では凹条部２３Ａを示す）が設けられている。この凹条部２３Ａも直状枠材２０の凹条部２３と同様に開口側が拡開するテーパ状に形成されている。また、各コーナー枠材２１には、ガス抜き孔２６が設けられている。このようにコーナー枠材２１にガス抜き孔２６を設けることによって、断熱パネルＰの空間３０内に注入されるＮ２ガスを空間３０内に満遍なく均一に供給して空間３０内をＮ２ガスで置換した後、置換に供されたＮ２ガスをガス抜き孔２６から外部に排出することができると共に、発泡断熱材４０を空間３０内に注入した際に発生するガスを外部へ排出することができる。したがって、パネル内圧による表面板１０の膨れや外れを防止することができる。 Further, the side surface of the corner frame member 21 is provided with a concave strip portion or a convex strip portion (showing the concave strip portion 23 </ b> A in the drawing) connected to the concave strip portion or the convex strip portion provided in the straight frame member 20. Yes. Similarly to the concave strip portion 23 of the straight frame member 20, the concave strip portion 23A is also formed in a tapered shape in which the opening side is expanded. Each corner frame member 21 is provided with a gas vent hole 26. By providing the vent holes 26 in the corner frame member 21 in this way, the N 2 gas injected into the space 30 of the heat insulation panel P is uniformly supplied into the space 30 and the space 30 is filled with N 2 gas. After the replacement, the N 2 gas used for the replacement can be discharged to the outside through the gas vent hole 26, and the gas generated when the foam heat insulating material 40 is injected into the space 30 can be discharged to the outside. it can. Therefore, the swelling and detachment of the surface plate 10 due to the panel internal pressure can be prevented.

一方、上記発泡断熱材４０は、例えば水を有するポリオール系原液と、ポリイソシアネート系原液と、発泡剤として炭素数５の飽和系炭化水素例えばシクロペンタンとの混合組成物にて形成されている。このように形成される発泡断熱材４０は、図示しないミキシング装置に接続する発泡断熱材供給用ノズル７０から断熱パネルＰの空間３０内に注入・充填される。   On the other hand, the foam heat insulating material 40 is formed of a mixed composition of, for example, a polyol-based stock solution containing water, a polyisocyanate-based stock solution, and a saturated hydrocarbon having 5 carbon atoms such as cyclopentane as a foaming agent. The foam heat insulating material 40 formed in this way is injected and filled into the space 30 of the heat insulating panel P from the foam heat insulating material supply nozzle 70 connected to a mixing device (not shown).

なお、ポリオール系原液は、ポリオール（多価アルコール），整泡剤，難燃剤及び他助剤等を混合・調製したものである。このうち、ポリオールはポリウレタンフォームの性質に最も大きな影響を及ぼす原料である。また、整泡剤は気泡を均一あるいは安定させるもので例えばシリコン系界面活性剤にて形成される。触媒はポリウレタンフォームの生成時の諸反応を促進し、樹脂化と発泡のバランスをとりながら目的にあったフォームを生成するために使用される助剤で、例えば第３級アミン，有機錫化合物あるいは有機酸の金属塩等が使用される。また、難燃剤はフォームを難燃化するためのもので、添加型の難燃剤としてリン酸エステル，ハロゲン化リン酸エステルが使用され、更に難燃性を高めるために水酸化アルミニウム等の無機化合物が併用される。その他必要に応じて使用される他助剤には、例えば架橋剤，着色剤，充填剤，安定剤あるいは可塑剤等が使用される。   The polyol stock solution is prepared by mixing and preparing a polyol (polyhydric alcohol), a foam stabilizer, a flame retardant, and other auxiliary agents. Of these, polyol is a raw material that has the greatest influence on the properties of polyurethane foam. Further, the foam stabilizer makes the bubbles uniform or stable and is formed of, for example, a silicon-based surfactant. The catalyst is an auxiliary agent used to promote various reactions during the formation of polyurethane foam, and to produce a foam suitable for the purpose while balancing resination and foaming. For example, a tertiary amine, an organic tin compound or Metal salts of organic acids are used. In addition, flame retardants are used to make foams flame retardant. Phosphoric acid esters and halogenated phosphoric acid esters are used as additive-type flame retardants, and inorganic compounds such as aluminum hydroxide are used to further increase flame retardancy. Are used together. In addition, for example, a crosslinking agent, a colorant, a filler, a stabilizer, or a plasticizer is used as another auxiliary agent used as necessary.

また、発泡剤は成形時のガス源となるもので、代替フロンであるシクロペンタンと水を有する。このシクロペンタンと、水とイソシアネートが反応して生成される炭酸ガス（ＣＯ2）との比を適宜選択することにより、発泡圧を調整することができる。   The foaming agent is a gas source at the time of molding, and has cyclopentane and water, which are alternative chlorofluorocarbons. The foaming pressure can be adjusted by appropriately selecting the ratio of this cyclopentane and the carbon dioxide (CO2) produced by the reaction of water and isocyanate.

一方、ポリイソシアネート系原液は、ポリイソシアネートと界面活性剤等他助剤とを混合・調製したものである。   On the other hand, the polyisocyanate-based stock solution is prepared by mixing and preparing polyisocyanate and other auxiliary agents such as a surfactant.

次に、上記断熱パネルを製造する手順の一例を、図１、図２、図４、図６、図７及び図８に示すフローチャートを参照して説明する。   Next, an example of a procedure for manufacturing the heat insulation panel will be described with reference to the flowcharts shown in FIGS. 1, 2, 4, 6, 7, and 8.

まず、図１、図２及び図４に示すように、膜材５０を直状枠材２０の空間３０側の注入用孔２５を閉塞する位置に配置し、膜材５０の下部５２を枠材２０に予め接着しておく。   First, as shown in FIGS. 1, 2, and 4, the film material 50 is disposed at a position that closes the injection hole 25 on the space 30 side of the straight frame material 20, and the lower part 52 of the film material 50 is a frame material. Adhere to 20 in advance.

次に、図１に示すように、一対の表面板１０の辺部間に直状枠材２０及びコーナー枠材２１を装着した仮組パネルＰ０を、下ベース盤８０と上ベース盤８１との間に、塩化ビニルを被覆したアルミニウム製の定盤８２（以下に平盤８２という）及びアルミニウム製のスペーサ８３を介して多段に平積みし、下ベース盤８０と上ベース盤８１に突設されたフランジ８４，８５を連結ボルト８６とナット８７によって固定する（ステップ８−１）。なお、平盤８２の表面に塩化ビニルを被覆した理由は、仮組パネルＰ０との接触によって傷が付くのを防止するためである。このようにして仮組パネルＰ０を平積みした後、多段に平積みされた仮組パネルＰ０を処理室１００内に搬入する。この処理室１００内の処理温度雰囲気は約３５℃に設定される。この際、製造する断熱パネルＰの厚さ寸法に合わせてスペーサ８３の高さ寸法を適宜変更する。この場合、平盤８２を仮組パネルＰ０の表面板１０よりも大きくすると共に、各平盤８２間に配置されるスペーサ８３の高さを仮組パネルＰ０の厚さより若干高くして、その差分の隙間Ｓが設けられている。この場合、隙間Ｓは、０．１ｍｍ以上１．０ｍｍ以下に設定する方がよい。なお、ここでは、下ベース盤８０と上ベース盤８１とを連結ボルト８６とナット８７によって固定しているが、上ベース盤８１によって最上段の仮組パネルＰ０を押さえない状態で複数の仮組パネルＰ０を平積みするようにしてもよい。   Next, as shown in FIG. 1, the temporary assembly panel P0 in which the straight frame member 20 and the corner frame member 21 are mounted between the side portions of the pair of surface plates 10 is connected to the lower base plate 80 and the upper base plate 81. Between them, the aluminum base plate 82 covered with vinyl chloride (hereinafter referred to as the flat plate 82) and the aluminum spacer 83 are stacked in multiple stages, and are projected from the lower base plate 80 and the upper base plate 81. The flanges 84 and 85 are fixed by the connecting bolt 86 and the nut 87 (step 8-1). The reason why the surface of the flat plate 82 is coated with vinyl chloride is to prevent the surface of the flat plate 82 from being damaged by contact with the temporary assembly panel P0. After the temporary assembly panels P0 are stacked in this manner, the temporary assembly panels P0 stacked in multiple stages are loaded into the processing chamber 100. The processing temperature atmosphere in the processing chamber 100 is set to about 35 ° C. At this time, the height dimension of the spacer 83 is appropriately changed according to the thickness dimension of the heat insulating panel P to be manufactured. In this case, the flat plate 82 is made larger than the surface plate 10 of the temporary assembly panel P0, and the height of the spacers 83 arranged between the flat plates 82 is slightly higher than the thickness of the temporary assembly panel P0, and the difference between them. Gap S is provided. In this case, the gap S is preferably set to 0.1 mm or more and 1.0 mm or less. Here, the lower base board 80 and the upper base board 81 are fixed by connecting bolts 86 and nuts 87. However, the upper base board 81 does not hold down the uppermost temporary assembly panel P0, and a plurality of temporary assemblies. The panels P0 may be stacked.

次に、平積みされた仮組パネルＰ０を図示しない移動機構によって水平移動して注入用孔２５とＮ２ガス供給ノズル６０とを位置調整する（ステップ８−２）。この際、Ｎ２ガス供給ノズル６０を垂直方向のみに移動してＮ２ガス供給ノズル６０と注入用孔２５とを位置合せすることができる。そして、図７（ａ）に示すように、注入用孔２５にＮ２ガス供給ノズル６０を挿入し、仮組パネルＰ０の空間３０内にＮ２ガスを注入し、空間３０内をＮ２ガスで置換する（ステップ８−３）。なお、このときのＮ２ガスの供給量は１０００Ｌ／ｍｉｎ以上である。そして、置換に供されたＮ２ガスはパネルコーナー部すなわちコーナー枠材２１に設けられたガス抜き孔２６を介して外部に排出される。これにより、パネル内圧による表面板１０の膨れや外れが防止される。なお、この際、最上段の仮組パネルＰ０の上部を押さえない場合では、最上段の仮組パネルＰ０の空間３０内にはＮ２ガスを注入せず、後述する発泡断熱材４０の注入直前に手動によってＮ２ガスを注入する。なお、この仮組パネルＰ０の押さえは、発泡断熱材４０の注入工程を行う場所に仮組パネルＰ０を移動させる際にエアバックによって行う。 Next, the temporarily assembled temporary panel P0 is moved horizontally by a moving mechanism (not shown) to adjust the position of the injection hole 25 and the N 2 gas supply nozzle 60 (step 8-2). In this case, it is possible to align the injection openings 25 and N 2 gas supply nozzle 60 by moving the N 2 gas supply nozzle 60 only in the vertical direction. 7A, an N 2 gas supply nozzle 60 is inserted into the injection hole 25, N 2 gas is injected into the space 30 of the temporary assembly panel P0, and the space 30 is filled with N 2 gas. (Step 8-3). In addition, the supply amount of N 2 gas at this time is 1000 L / min or more. The N 2 gas used for the replacement is discharged to the outside through the gas vent hole 26 provided in the panel corner portion, that is, the corner frame member 21. Thereby, the swelling and detachment of the surface plate 10 due to the panel internal pressure are prevented. At this time, in the case where the upper part of the uppermost temporary assembly panel P0 is not pressed, N 2 gas is not injected into the space 30 of the uppermost temporary assembly panel P0, but immediately before the injection of the foam insulation 40 described later. Inject N 2 gas manually. The pressing of the temporary assembly panel P0 is performed by an air bag when the temporary assembly panel P0 is moved to a place where the foaming heat insulating material 40 is injected.

次に、平積みされ、Ｎ２ガスで置換された仮組パネルＰ０を移動機構（図示せず）によって水平移動して注入用孔２５と発泡断熱材供給ノズル７０とを位置調整する（ステップ８−４）。この際、発泡断熱材供給ノズル７０を垂直方向のみに移動して発泡断熱材供給ノズル７０と注入用孔２５とを位置合せすることができる。そして、図７（ｂ）に示すように、注入用孔に発泡断熱材供給ノズル７０を挿入し、仮組パネルＰ０の空間３０内に、発泡断熱材４０｛具体的には、上記水を有するポリオール系原液、ポリイソシアネート系原液及び発泡剤としてのシクロペンタンの混合組成物｝を注入し、発泡・充填する（ステップ８−５）。この際、上述したように、発泡断熱材４０は下部から充填されるので、膜材５０の基部５１及び折曲片５３は発泡断熱材４０によって下方側及び内方側から押されて枠材側へ変位し注入用孔２５を閉塞する（図６参照）。これにより、発泡断熱材４０の外部への露呈が防止される。この発泡断熱材４０の注入工程において発生するガスは、ガス抜き孔２６から外部に排出される。これにより、パネル内圧による表面板１０の膨れや外れが防止される。 Next, the temporarily assembled panel P0, which is stacked and replaced with N 2 gas, is moved horizontally by a moving mechanism (not shown) to adjust the position of the injection hole 25 and the foam insulation supply nozzle 70 (step 8). -4). At this time, the foam heat insulating material supply nozzle 70 can be moved only in the vertical direction to align the foam heat insulating material supply nozzle 70 with the injection hole 25. And as shown in FIG.7 (b), the foam heat insulating material supply nozzle 70 is inserted in the hole for injection | pouring, and the foam heat insulating material 40 {specifically, it has the said water in the space 30 of temporary assembly panel P0. A polyol-based stock solution, a polyisocyanate-based stock solution, and a mixed composition of cyclopentane as a foaming agent} are injected, foamed and filled (step 8-5). At this time, as described above, since the foam heat insulating material 40 is filled from the lower part, the base 51 and the bent piece 53 of the film material 50 are pushed from the lower side and the inner side by the foam heat insulating material 40 to the frame material side. To close the injection hole 25 (see FIG. 6). Thereby, exposure to the exterior of the foam heat insulating material 40 is prevented. The gas generated in the step of injecting the foam heat insulating material 40 is discharged from the gas vent hole 26 to the outside. Thereby, the swelling and detachment of the surface plate 10 due to the panel internal pressure are prevented.

上記発泡断熱材４０の注入工程の際、上記ポリオール系原液と、ポリイソシアネート系原液と、シクロペンタンは、それぞれ計量されて所定の割合例えばシクロペンタン：ポリオール系原液：ポリイソシアネート系原液は、例えば５．５：７５：１００の割合で配合された後、所定の圧力に調整されてミキシング装置へ供給され、ミキシング装置で所定の割合に攪拌・混合された後、その混合組成物は発泡断熱材供給ノズル７０から適宜間隔をおいて配置された一対の表面板１０間に注入されて発泡し、その後硬化して断熱材（フォーム）が成形される。なお、混合組成物の注入時の処理温度雰囲気（処理室１００内の室温）を発泡温度（例えば３５℃）に設定しておく方が好ましい。   In the step of injecting the foam heat insulating material 40, the polyol stock solution, the polyisocyanate stock solution, and the cyclopentane are respectively weighed in a predetermined ratio, for example, cyclopentane: polyol stock solution: polyisocyanate stock solution, for example, 5 After mixing at a ratio of 5: 75: 100, the pressure is adjusted to a predetermined pressure, supplied to the mixing device, stirred and mixed at a predetermined ratio by the mixing device, and then the mixed composition is supplied to the foam insulation. It inject | pours between a pair of surface boards 10 arrange | positioned from the nozzle 70 at appropriate intervals, it foams, and it hardens | cures after that, and a heat insulating material (foam | foam) is shape | molded. In addition, it is more preferable to set the processing temperature atmosphere (room temperature in the processing chamber 100) at the time of injection | pouring of a mixed composition to the foaming temperature (for example, 35 degreeC).

なお、異なる寸法の断熱パネルＰすなわち仮組パネルＰ０の高さ寸法に応じて最適な量の発泡断熱材４０を注入する必要があるので、予め設定された断熱パネルＰの寸法すなわち仮組パネルＰ０の高さ寸法とパネル温度の情報を記憶した制御手段例えば中央演算処理装置（ＣＰＵ）からの制御信号に基づいて発泡断熱材供給ノズル７０から所定量の発泡断熱材４０を空間３０内に注入する。あるいは、仮組パネルＰ０を仮組するときに、例えば仮組パネルＰ０を平積みする各平盤８２あるいは直状枠材２０に断熱パネルＰの寸法（仮組パネルＰ０の高さ寸法）に応じた情報を記憶した記号例えばバーコードを設け、発泡断熱材４０を注入する前に、温度センサによってパネル温度を検出すると共に、上記バーコードの情報を読み取り、その検出信号をＣＰＵに伝達に伝達し、ＣＰＵにおいて、この検出信号と予め記憶された情報とを比較して、その制御信号を発泡機（図示せず）に送り、発泡断熱材供給ノズル７０から所定量の発泡断熱材４０を空間３０内に注入する。   In addition, since it is necessary to inject | pour the optimal quantity of foam heat insulating materials 40 according to the height dimension of the heat insulation panel P which is a different dimension, ie, the temporary assembly panel P0, the dimension of the heat insulation panel P previously set, ie, the temporary assembly panel P0. A predetermined amount of foam heat insulating material 40 is injected into the space 30 from the foam heat insulating material supply nozzle 70 based on a control signal that stores information on the height dimension and panel temperature, for example, a control signal from a central processing unit (CPU). . Or, when temporarily assembling the temporary assembly panel P0, for example, according to the dimension of the heat insulation panel P (the height dimension of the temporary assembly panel P0) on each flat plate 82 or the straight frame member 20 on which the temporary assembly panel P0 is stacked. A bar code is provided, for example, a bar code, and before injecting the foam insulation 40, the panel temperature is detected by a temperature sensor, the bar code information is read, and the detection signal is transmitted to the CPU. The CPU compares the detection signal with information stored in advance, sends the control signal to a foaming machine (not shown), and sends a predetermined amount of foam insulation 40 from the foam insulation supply nozzle 70 to the space 30. Inject into.

上述のようにして仮組パネルＰ０の空間３０内に発泡断熱材４０を注入し、発泡・充填した後、約２〜５分間待機させる（ステップ８−６）。この待機中において、パネル内への発泡断熱材４０の発泡・充填後に生じるシクロペンタンのパネル外への漏出が、注入工程が行われる場所のみに存在することになる。そのため、注入工程が行われる場所に、図示しない排気設備，静電気除去設備及び可燃性気体検出設備等の各種安全設備を備えることで、パネル製造設備全体の高い安全性を保つことができる。そして、発泡・充填した後、約２〜５分間待機させて安全を確認した後、作製された断熱パネルＰを所定の場所に搬出する。   As described above, the foam insulation 40 is injected into the space 30 of the temporary assembly panel P0, foamed and filled, and then waited for about 2 to 5 minutes (step 8-6). During this standby, leakage of cyclopentane to the outside of the panel that occurs after foaming and filling of the foam heat insulating material 40 into the panel exists only at the place where the injection process is performed. Therefore, by providing various safety equipment such as exhaust equipment, static electricity removal equipment, and combustible gas detection equipment (not shown) at the place where the injection process is performed, high safety of the entire panel manufacturing equipment can be maintained. And after foaming and filling, after waiting for about 2-5 minutes and confirming safety, the produced heat insulation panel P is carried out to a predetermined place.

なお、上記実施形態では、発泡断熱材にノンフロン（シクロペンタン）を用いた場合について説明したが、通常のフロン系発泡断熱材でも適用可能である。   In addition, although the said embodiment demonstrated the case where a non-fluorocarbon (cyclopentane) was used for the foam heat insulating material, it is applicable also to a normal freon-based foam heat insulating material.

また、上記実施形態では、仮組パネルＰ０間にスペーサ８３を用いているが、枠材２０，２１及び表面板１０の配置はこれに限定されるものではなく、スペーサを用いなくてもよい。   Moreover, in the said embodiment, although the spacer 83 is used between temporary assembly panels P0, arrangement | positioning of the frame materials 20 and 21 and the surface board 10 is not limited to this, A spacer does not need to be used.

また、上記実施形態では、平面状の断熱パネルについて説明したが、平面状パネル以外の他の形状、例えば隅部用のＬ字型の断熱パネルにも適用できる。   Moreover, although the planar heat insulation panel was demonstrated in the said embodiment, it is applicable also to shapes other than a planar panel, for example, the L-shaped heat insulation panel for corners.

この発明に係る断熱パネルの平積み状態の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the flat-stacked state of the heat insulation panel which concerns on this invention. 図１の要部拡大断面図である。It is a principal part expanded sectional view of FIG. この発明に係る断熱パネルの一例を示す斜視図である。It is a perspective view which shows an example of the heat insulation panel which concerns on this invention. 図３のＩ−Ｉ線に沿う拡大断面図（ａ）及び（ａ）のII矢視図（ｂ）である。FIG. 4 is an enlarged cross-sectional view (a) taken along line II of FIG. 3 and a view (b) taken along line II in (a). 断熱パネルの要部拡大断面図である。It is a principal part expanded sectional view of a heat insulation panel. 断熱パネルの製造方法における膜材の変位状態を示す断面図（ａ）ないし（ｃ）である。It is sectional drawing (a) thru | or (c) which shows the displacement state of the film | membrane material in the manufacturing method of a heat insulation panel. 断熱パネルの製造工程における不活性ガスの置換状態を示す概略平面断面図（ａ）及び発泡断熱材の注入状態を示す概略平面断面図（ｂ）である。It is a schematic plane sectional view (a) which shows the substitution state of the inert gas in the manufacturing process of a heat insulation panel, and a schematic plane sectional view (b) which shows the injection | pouring state of a foam heat insulating material. 断熱パネルの製造工程を示すフローチャートである。It is a flowchart which shows the manufacturing process of a heat insulation panel.

符号の説明Explanation of symbols

Ｐ 断熱パネル
１０ 表面板
２０ 直状枠材（枠材）
２１ コーナー枠材（枠材）
２５ 注入用孔
３０ 空間
４０ 発泡断熱材
５０ 膜材
５２ 下部
５３ 折曲片
７０ ノズル P Insulation panel 10 Surface plate 20 Straight frame material (frame material)
21 Corner frame material (frame material)
25 Injection hole 30 Space 40 Foam insulation 50 Film material 52 Lower part 53 Folding piece 70 Nozzle

Claims (2)

一対の表面板と、上記両表面板の辺部間に装着される枠材と、上記両表面板と枠材とで形成される空間内に、上記枠材に設けられた注入用孔を介して挿入されるノズルにより注入・充填される発泡断熱材とからなる断熱パネルであって、
上記注入用孔を閉塞すべく可撓性を有する薄い膜材を上記枠材の空間側に設けると共に、膜材の下部を枠材に接着して設け、かつ、上記膜材の上端に下方に向かって折り曲げられた折曲片を設けてなり、
上記ノズルにより上記膜材を空間側に変位して発泡断熱材が上記空間内に注入され発泡充填された際に、発泡断熱材が上記折曲片を押圧して上記膜材が上記注入用孔を閉塞する、ことを特徴とする断熱パネル。 In a space formed by the pair of surface plates, a frame member mounted between the side portions of both surface plates, and the both surface plates and the frame member, through an injection hole provided in the frame member A heat insulating panel made of foam heat insulating material injected and filled by a nozzle inserted
A flexible thin film material is provided on the space side of the frame material so as to close the injection hole, and the lower part of the film material is bonded to the frame material, and the upper end of the film material is downward. A bent piece that is bent toward the
When the film material is displaced to the space side by the nozzle and the foam heat insulating material is injected into the space and filled with foam, the foam heat insulating material presses the bent piece and the film material becomes the injection hole. Insulating panel characterized by closing. 上記折曲片を複数回折曲して形成してなることを特徴とする請求項1記載の断熱パネル。   2. The heat insulating panel according to claim 1, wherein the bent piece is formed by bending a plurality of times.
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