JP5393359B2 - Manufacturing method of dimpleless honeycomb sandwich panel - Google Patents

Manufacturing method of dimpleless honeycomb sandwich panel Download PDF

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JP5393359B2
JP5393359B2 JP2009207439A JP2009207439A JP5393359B2 JP 5393359 B2 JP5393359 B2 JP 5393359B2 JP 2009207439 A JP2009207439 A JP 2009207439A JP 2009207439 A JP2009207439 A JP 2009207439A JP 5393359 B2 JP5393359 B2 JP 5393359B2
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裕司 一瀬
是典 藤岡
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Nippi Corp
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本発明はディンプルレスハニカムサンドイッチパネルの製造方法に関するものであり、特に、太陽電池セルなどが固着される軽量構造のディンプルレスハニカムサンドイッチパネルの製造方法に関するものである。   The present invention relates to a method for manufacturing a dimpleless honeycomb sandwich panel, and more particularly, to a method for manufacturing a dimpleless honeycomb sandwich panel having a lightweight structure to which solar cells or the like are fixed.

従来、ディンプルレスハニカムサンドイッチパネルは、中空状のハニカムコアの表裏両側に一対の表皮材（パネルスキンともいう。）を接着剤で貼着して形成され、主に人工衛星用の太陽電池セルを設置するために多用されている。この場合、ディンプルレスハニカムサンドイッチパネルの性能としては、太陽電池セルを安定的に支持できれば、強度や剛性はそれ程要求されず、むしろ、ディンプルレスハニカムサンドイッチパネル自体を軽量に構成することが最も重要となる。そのため、ディンプルレスハニカムサンドイッチパネルの表皮材としては可能な限り薄いものが使用される。   Conventionally, a dimple-less honeycomb sandwich panel is formed by sticking a pair of skin materials (also called panel skins) with adhesives on both sides of a hollow honeycomb core, and mainly used for solar cells for artificial satellites. Widely used for installation. In this case, as for the performance of the dimple-less honeycomb sandwich panel, if the solar cell can be stably supported, strength and rigidity are not so much required. Become. Therefore, the thinnest possible skin material is used for the dimpleless honeycomb sandwich panel.

図５は極薄の表皮材を用いて製造したディンプルレスハニカムサンドイッチパネルを示す。同図に示すように、ディンプルレスハニカムサンドイッチパネル１は、断面正六角形状に形成された中空状のコアセル２，２…を平面状に多数配列して成るハニカムコア３と、該ハニカムコア３を上下両側から挟むよう設けられた上下一対の表皮材４，５と、該表皮材４，５をハニカムコア３に貼着する接着剤６，６とから構成されている。   FIG. 5 shows a dimple-less honeycomb sandwich panel manufactured using an extremely thin skin material. As shown in the figure, a dimple-less honeycomb sandwich panel 1 includes a honeycomb core 3 in which a large number of hollow core cells 2, 2... A pair of upper and lower skin materials 4 and 5 provided so as to be sandwiched from both upper and lower sides, and adhesives 6 and 6 for sticking the skin materials 4 and 5 to the honeycomb core 3.

ハニカムコア３は、アルミニウム合金等の金属材から構成されている。又、表皮材４，５は、高強度で熱膨張率がハニカムコア３よりも小さいＣＦＲＰ（炭素繊維強化プラスチック）等の繊維強化複合材料から構成されている。   The honeycomb core 3 is made of a metal material such as an aluminum alloy. The skin materials 4 and 5 are made of a fiber reinforced composite material such as CFRP (carbon fiber reinforced plastic) having a high strength and a thermal expansion coefficient smaller than that of the honeycomb core 3.

特に、軽量化のために表皮材４，５の厚みは可能な限り薄く設定されている。又、表皮材４，５をハニカムコア３に貼着する接着剤６，６としては、一般に熱硬化型エポキシ樹脂系のものが採択されている。   In particular, the thickness of the skin materials 4 and 5 is set as thin as possible for weight reduction. Further, as the adhesives 6 and 6 for attaching the skin materials 4 and 5 to the honeycomb core 3, a thermosetting epoxy resin-based material is generally adopted.

上記ディンプルレスハニカムサンドイッチパネル１を製造する際は、ハニカムコア３の上下両側に接着剤６，６を介して表皮材４，５を積層し、該積層体を所定の加圧下にて加熱処理することにより、表皮材４，５をハニカムコア３に接合している（例えば、特許文献１参照）。   When the dimpleless honeycomb sandwich panel 1 is manufactured, the skin materials 4 and 5 are laminated on the upper and lower sides of the honeycomb core 3 via the adhesives 6 and 6, and the laminate is heat-treated under a predetermined pressure. Thus, the skin materials 4 and 5 are joined to the honeycomb core 3 (see, for example, Patent Document 1).

特開２０００−１２８０９３号公報JP 2000-128093 A

上記ディンプルレスハニカムサンドイッチパネル１は、通常のパネルに比べて軽量であるため、宇宙空間にて太陽電池セル（被固着物）７を固着する基盤として最適である。しかし、表皮材４，５の厚みが極薄であるために、図６に示すように、表皮材４，５の表面に略６角形状の窪み、所謂ディンプル８が生じ易い。   Since the dimpleless honeycomb sandwich panel 1 is lighter than a normal panel, the dimpleless honeycomb sandwich panel 1 is optimal as a base for fixing a solar cell (fixed object) 7 in a space. However, since the thicknesses of the skin materials 4 and 5 are extremely thin, as shown in FIG.

これは、接着剤６，６を加熱処理してハニカムコア３に表皮材４，５を接合した直後に、接着剤６，６が収縮すること、並びに、ハニカムコア３の熱膨張率が表皮材４，５の熱膨張率よりも大きいことにより、表皮材４，５におけるコアセル２の開口部と対応する部分に圧縮力が作用して、当該表皮材４，５の表面にディンプル８が発生し易くなると考えられる。尚、図６中の符号９は、太陽電池セル７と表皮材４の間に介装した絶縁フィルムである。   This is because the adhesives 6 and 6 contract immediately after the adhesives 6 and 6 are heat-treated and the skin materials 4 and 5 are joined to the honeycomb core 3, and the thermal expansion coefficient of the honeycomb core 3 is the skin material. When the coefficient of thermal expansion is greater than 4 and 5, a compressive force acts on a portion of the skin material 4 and 5 corresponding to the opening of the core cell 2, and dimple 8 is generated on the surface of the skin material 4 and 5. It will be easier. Note that reference numeral 9 in FIG. 6 denotes an insulating film interposed between the solar battery cell 7 and the skin material 4.

上記表皮材に例えば、深さ０．０７８ミリ以上のディンプルが生じた場合は、ディンプルレスハニカムサンドイッチパネルの外観を損ねるのみならず、脆性材料から成る太陽電池セルが割れやすくなる。また、表皮材に対する太陽電池セルの固着強度が小さくなる。さらに、太陽電池セルを固着するための接着剤の使用量が多くなり、材料費のコストアップを招く等の問題があった。   For example, when dimples having a depth of 0.078 mm or more are generated in the skin material, not only the appearance of the dimple-less honeycomb sandwich panel is impaired, but also a solar battery cell made of a brittle material is easily broken. Further, the fixing strength of the solar battery cell to the skin material is reduced. Furthermore, there is a problem that the amount of adhesive used for fixing the solar battery cell increases, leading to an increase in material costs.

そこで、表皮材にディンプルが発生することを抑制し、且つ、太陽電池セル等の被固着物の割れを防止するとともに、接着剤の使用量を増やすことなく被固着物の固着強度を向上させるために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。   Therefore, in order to suppress the occurrence of dimples in the skin material, prevent cracking of the adherend such as solar cells, and improve the fixing strength of the adherend without increasing the amount of adhesive used. Therefore, a technical problem to be solved arises, and the present invention aims to solve this problem.

本発明は上記目的を達成するために提案されたものであり、請求項１記載の発明は、ハニカムコアの表裏両側に接着剤を介して表皮材を貼着して成るディンプルレスハニカムサンドイッチパネルの製造方法であって、
該ハニカムコアを枠体内に圧縮状態で装入するコア装入工程たる第１工程と、
該ハニカムコアの表裏両側に前記接着剤を介して前記表皮材を積層して、該積層体を加圧・加熱して該表皮材をハニカムコアに貼着する表皮材貼着工程たる第２工程と、
該表皮材の貼着後に前記枠体を前記ハニカムコアから取り外す枠体脱着工程たる第３工程とを備え、
該枠体の脱着時に前記ハニカムコアに生ずる形状復元力により、前記表皮材を伸展状態に張設するディンプルレスハニカムサンドイッチパネルの製造方法に
おいて、
前記ハニカムコアを枠体内に圧縮状態で装入するコア装入工程たる第１工程は、前記枠体内外周縁部全周形状に倣う環状にコアセルを装入配列し、次いで前記環状領域内側に沿って順次コアセルを装入して枠体内の中心領域に未装入部分を確保し、最後に、該未装入部分にコアセルを強制的に装入することでハニカムコア全体が略均等な圧縮応力を有して保持される工程であるディンプルレスハニカムサンドイッチパネルの製造方法を提供する。 The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a dimple-less honeycomb sandwich panel in which a skin material is bonded to both sides of a honeycomb core via an adhesive. It met the production method,
A first step which is a core charging step of charging the honeycomb core in a compressed state into the frame;
A second step which is a skin material adhering step in which the skin material is laminated on both the front and back sides of the honeycomb core via the adhesive, and the laminate is pressurized and heated to adhere the skin material to the honeycomb core. When,
A third step which is a frame body detaching step for removing the frame body from the honeycomb core after the skin material is attached;
The shape restoring force generated on the honeycomb core during desorption of the frame body, the manufacturing method of the dimple-less honeycomb sandwich panels which stretched the skin material in the extended state
Leave
The first step, which is a core loading step of loading the honeycomb core in a compressed state in the frame body, is to arrange the core cells in an annular shape following the entire outer peripheral edge shape of the frame body, and then along the inside of the annular region The core cells are sequentially inserted to secure a non-charged portion in the central region of the frame, and finally, the core cells are forcedly inserted into the non-charged portion so that the entire honeycomb core has a substantially uniform compressive stress. A dimple-less honeycomb sandwich panel manufacturing method is provided.

この製造方法によれば、まず、ハニカムコアを枠体内に圧縮状態で装入する。次に、ハニカムコアの表裏両側に接着剤を介して表皮材を配設し、加圧下にて加熱処理して表皮材をハニカムコアに貼着する。この後、ハニカムコアから枠体を取り外すことで、ディンプルレスハニカムサンドイッチパネルが製造される。   According to this manufacturing method, first, the honeycomb core is charged into the frame body in a compressed state. Next, a skin material is disposed on both the front and back sides of the honeycomb core via an adhesive, and heat treatment is performed under pressure to adhere the skin material to the honeycomb core. Then, a dimple-less honeycomb sandwich panel is manufactured by removing the frame from the honeycomb core.

斯くして、枠体をハニカムコアから取り外した際に、該ハニカムコアは圧縮状態が解放されて元の状態に戻ろうとする形状復元力が、ハニカムコアの内部から外周部に向かう放射方向に作用する。その結果、ハニカムコアの形状復元力により、表皮材も放射方向に引っ張られるため、該表皮材が伸展状態でハニカムコアに貼設される。   Thus, when the frame body is removed from the honeycomb core, the shape restoring force to release the compressed state of the honeycomb core to return to the original state acts in the radial direction from the inside of the honeycomb core toward the outer peripheral portion. To do. As a result, the skin material is also pulled in the radial direction by the shape restoring force of the honeycomb core, so that the skin material is stuck to the honeycomb core in an extended state.

請求項１記載の発明は、表皮材は伸展状態でハニカムコアに貼着することにより、表皮材にディンプルが生じることを抑制できるので、太陽電池セル等の被固着物の割れを防止することができる。   In the first aspect of the invention, since the skin material is stuck to the honeycomb core in an extended state, it is possible to suppress the occurrence of dimples on the skin material. it can.

また、表皮材の平面精度が向上するので、被固着物の固着強度が増大するとともに、接着剤の使用量が減少して材料費のコストダウンを図ることができる。   Further, since the planar accuracy of the skin material is improved, the fixing strength of the object to be fixed is increased, and the amount of adhesive used is reduced, thereby reducing the material cost.

本発明の一実施例を示し、ディンプルレスハニカムサンドイッチパネルを説明する斜視図。The perspective view which shows one Example of this invention and demonstrates a dimple-less honeycomb sandwich panel. 本実施例に係る枠体を示す斜視図。The perspective view which shows the frame which concerns on a present Example. 図２の枠体内にハニカムコアを装入したときの状態を説明する斜視図。FIG. 3 is a perspective view for explaining a state when a honeycomb core is inserted into the frame body of FIG. 2. 本発明に係るディンプルレスハニカムサンドイッチパネルを示す断面図。Sectional drawing which shows the dimple-less honeycomb sandwich panel which concerns on this invention. 従来例を示し、ディンプルレスハニカムサンドイッチパネルの斜視図。The perspective view of the dimple-less honeycomb sandwich panel which shows a conventional example. 従来例を示し、ディンプルレスハニカムサンドイッチパネルの断面図。Sectional drawing of a dimple-less honeycomb sandwich panel which shows a conventional example.

本発明は、表皮材にディンプルが発生することを抑制し、且つ、太陽電池セル等の被固着物の割れを防止するとともに、接着剤の使用量を増やすことなく被固着物の固着強度を向上させるという目的を達成するために、ハニカムコアの表裏両側に接着剤を介して表皮材を貼着して成るディンプルレスハニカムサンドイッチパネルの製造方法であって、該ハニカムコアを枠体内に圧縮状態で装入するコア装入工程たる第１工程と、該ハニカムコアの表裏両側に前記接着剤を介して前記表皮材を積層して、該積層体を加圧・加熱して該表皮材をハニカムコアに貼着する表皮材貼着工程たる第２工程と、該表皮材の貼着後に前記枠体を前記ハニカムコアから取り外す枠体脱着工程たる第３工程とを備え、
該枠体の脱着時に前記ハニカムコアに生ずる形状復元力により、前記表皮材を伸展状態に張設するディンプルレスハニカムサンドイッチパネルの製造方法に
おいて、
前記ハニカムコアを枠体内に圧縮状態で装入するコア装入工程たる第１工程は、前記枠体内外周縁部全周形状に倣う環状にコアセルを装入配列し、次いで前記環状領域内側に沿って順次コアセルを装入して枠体内の中心領域に未装入部分を確保し、最後に、該未装入部分にコアセルを強制的に装入することでハニカムコア全体が略均等な圧縮応力を有して保持される工程であるディンプルレスハニカムサンドイッチパネルの製造方法とすることを通じて実現した。

The present invention suppresses the occurrence of dimples in the skin material, prevents cracking of the adherend such as solar cells, and improves the adherence strength of the adherend without increasing the amount of adhesive used. In order to achieve the object, a method for manufacturing a dimple-less honeycomb sandwich panel in which a skin material is attached to both sides of a honeycomb core via an adhesive, the honeycomb core being compressed in a frame body. A first step which is a core charging step for charging, and the skin material is laminated on both the front and back sides of the honeycomb core via the adhesive, and the laminate is pressurized and heated so that the skin material becomes the honeycomb core. A second step which is a skin material sticking step to be attached to, and a third step which is a frame body detaching step for removing the frame body from the honeycomb core after the skin material is stuck,
The shape restoring force generated on the honeycomb core during desorption of the frame body, the manufacturing method of the dimple-less honeycomb sandwich panels which stretched the skin material in the extended state
Leave
The first step, which is a core loading step of loading the honeycomb core in a compressed state in the frame body, is to arrange the core cells in an annular shape following the entire outer peripheral edge shape of the frame body, and then along the inside of the annular region The core cells are sequentially inserted to secure a non-charged portion in the central region of the frame, and finally, the core cells are forcedly inserted into the non-charged portion so that the entire honeycomb core has a substantially uniform compressive stress. This is realized through a method for manufacturing a dimple-less honeycomb sandwich panel, which is a process of holding and holding .

以下、本発明の好適な一実施例を図１乃至図４に従って説明する。本実施例は、主として人工衛星用の太陽電池セルを設置する基盤として利用される軽量構造のディンプルレスハニカムサンドイッチパネルに適用したものである。   A preferred embodiment of the present invention will be described below with reference to FIGS. The present embodiment is applied to a dimple-less honeycomb sandwich panel having a lightweight structure that is mainly used as a base for installing solar cells for artificial satellites.

図１は、本実施例に係るディンプルレスハニカムサンドイッチパネルを示す。同図に示すように、ディンプルレスハニカムサンドイッチパネル１１は蜂の巣構造のハニカムコア１３を具備し、該ハニカムコア１３は、中空状の断面正六角形に形成した多数のコアセル１２，１２…を互いに隣接させて平面状に配列して構成されている。
そして、ハニカムコア１３の上下両端側には表皮材１４，１５がフィルム状の接着剤（以下、「接着剤シート」という。）１６，１６を介して強固に貼着され、該表皮材１４，１５はハニカムコア１３の開口部全体を閉鎖するように張設されている。依って、ハニカムコア１３は表皮材１４，１５によりサンドイッチ状に挟装された軽量構造を呈している。 FIG. 1 shows a dimple-less honeycomb sandwich panel according to this example. As shown in the figure, a dimple-less honeycomb sandwich panel 11 includes a honeycomb core 13 having a honeycomb structure, and the honeycomb core 13 has a large number of core cells 12, 12. Are arranged in a plane.
The skin materials 14 and 15 are firmly attached to the upper and lower ends of the honeycomb core 13 through film-like adhesives (hereinafter referred to as “adhesive sheets”) 16 and 16, respectively. 15 is stretched so as to close the entire opening of the honeycomb core 13. Therefore, the honeycomb core 13 has a lightweight structure sandwiched between the skin materials 14 and 15.

更に、ハニカムコア１３は、熱膨張率が比較的大きい金属材料、例えば、アルミニウム合金から構成されている。又、表皮材１４，１５は、高強度で熱膨張率の小さいＣＦＲＣから構成されている。特に、表皮材１４，１５の厚みは可能な限り薄く、例えば、０．１ｍｍ前後に設定されている。そして、表皮材１４，１５とハニカムコア１３とを接合するシート状接着剤１６，１６としては、熱硬化型エポキシ樹脂系のものが採択されている。   Furthermore, the honeycomb core 13 is made of a metal material having a relatively high coefficient of thermal expansion, such as an aluminum alloy. The skin materials 14 and 15 are made of CFRC having high strength and a low coefficient of thermal expansion. In particular, the thickness of the skin materials 14 and 15 is as thin as possible, for example, set to around 0.1 mm. And as the sheet-like adhesives 16 and 16 which join the skin materials 14 and 15 and the honeycomb core 13, the thermosetting epoxy resin type thing is employ | adopted.

次に、上記ディンプルレスハニカムサンドイッチパネル１１の製造方法（コアプリストレスによる薄板表面材貼着型ディンプルレスハニカムサンドイッチパネルディンプルレス製造方法）について詳述する。まず、図２に示すように、一対の縦部材１７，１７と横部材１８，１８とをビス等の止着具（図示せず）にて分離可能に結合して成る枠体１９を用意し、そして、図３に示すように、該枠体１９内にハニカムコア１３を圧縮状態で装入する。この場合、枠体１９はハニカムコア１３よりもやや小さい形状寸法のものを使用する。そして、枠体１９にハニカムコア１３を装入する際は、最初に、枠体１９内の外周縁部に沿う部分のみにハニカムコア１３のコアセル１２，１２…を装入していく。   Next, a method for manufacturing the above dimpleless honeycomb sandwich panel 11 (a method for manufacturing a thin plate surface material adhering type dimpleless honeycomb sandwich panel dimpleless due to co-appli stress) will be described in detail. First, as shown in FIG. 2, a frame body 19 is prepared, which is formed by detachably connecting a pair of vertical members 17 and 17 and horizontal members 18 and 18 with a fastener (not shown) such as a screw. And as shown in FIG. 3, the honeycomb core 13 is inserted into the frame 19 in a compressed state. In this case, a frame 19 having a shape dimension slightly smaller than that of the honeycomb core 13 is used. When the honeycomb core 13 is inserted into the frame 19, first, the core cells 12, 12... Of the honeycomb core 13 are inserted into only the portion along the outer peripheral edge in the frame 19.

而して、枠体１９内の外周縁部に沿ってコアセル１２，１２…を装入することで、コアセル１２，１２…は枠体１９全周形状に倣う環状に配列される。このあと、前記環状領域の内側に沿って順次コアセル１２，１２…を装入して、枠体１９内の中心領域のみを未装入部分（空きスペース）として確保しておく。
そして、最後に枠体１９内に空けられた中心領域にコアセル１２，１２…を強制的に装入することで、図３に示すように、枠体１９内にコアセル１２，１２…から成るハニカムコア１３全体がほぼ均等な圧縮応力を有して保持される。この場合、ハニカムコア１３の圧縮力は、該ハニカムコア１３の中心部から外周部に向かう放射方向に作用する。 Thus, by inserting the core cells 12, 12... Along the outer peripheral edge in the frame 19, the core cells 12, 12,. Thereafter, the core cells 12, 12... Are sequentially inserted along the inside of the annular region, and only the central region in the frame body 19 is secured as an unloaded portion (empty space).
3. Finally, the core cells 12, 12,... Are forcibly inserted into the center region vacated in the frame body 19, so that the honeycomb cell composed of the core cells 12, 12,. The entire core 13 is held with a substantially uniform compressive stress. In this case, the compressive force of the honeycomb core 13 acts in a radial direction from the center portion of the honeycomb core 13 toward the outer peripheral portion.

ついで、図１に示すように、ハニカムコア１３の上下両端面に熱硬化型エポキシ樹脂系の接着剤シート１６，１６を配置するとともに、該接着剤シート１６，１６外面に表皮材１４，１５を積層する。即ち、上下一対の表皮材１４，１５とハニカムコア１３との間に接着剤シート１６，１６が挟まれるよう、表皮材１４，１５、ハニカムコア１３及び接着剤シート１６，１６を積層する。   Next, as shown in FIG. 1, thermosetting epoxy resin adhesive sheets 16 and 16 are disposed on both upper and lower end faces of the honeycomb core 13, and skin materials 14 and 15 are disposed on the outer surfaces of the adhesive sheets 16 and 16. Laminate. That is, the skin materials 14 and 15, the honeycomb core 13, and the adhesive sheets 16 and 16 are laminated so that the adhesive sheets 16 and 16 are sandwiched between the pair of upper and lower skin materials 14 and 15 and the honeycomb core 13.

然る後、ハニカムコア１３、表皮材１４，１５及び接着剤シート１６，１６から成る積層体を所定の加圧（例えば１．７５気圧）条件下にて所定温度（例えば、８０〜１００℃）に加熱処理して所要時間キープし、接着剤シート１６，１６を熱硬化させる。   Thereafter, the laminated body composed of the honeycomb core 13, the skin materials 14, 15 and the adhesive sheets 16, 16 is subjected to a predetermined temperature (for example, 80 to 100 ° C.) under a predetermined pressure (for example, 1.75 atm). The adhesive sheets 16 and 16 are thermally cured by heat treatment and keeping for a required time.

これによって、接着剤シート１６，１６が均一な厚さの層に熱硬化して、表皮材１４，１５とハニカムコア１３とは互いに強固に接合される。そして、表皮材１４，１５の接合後に、前記枠体１９をハニカムコア１３から取り外して、該ハニカムコア１３を圧縮状態から開放させる。以上により、ディンプルレスハニカムサンドイッチパネル１１の製造が完了する。   As a result, the adhesive sheets 16 and 16 are thermally cured into a layer having a uniform thickness, and the skin materials 14 and 15 and the honeycomb core 13 are firmly bonded to each other. And after joining the skin materials 14 and 15, the said frame 19 is removed from the honeycomb core 13, and this honeycomb core 13 is released from a compression state. Thus, the manufacture of the dimpleless honeycomb sandwich panel 11 is completed.

叙上の如く本発明によると、枠体１９を取り外した際に、ハニカムコア１３の圧縮状態が解放されて、元の形状に戻る復元力がハニカムコア１３の内側中心部から外側周縁部に向かう放射方向に作用する。   As described above, according to the present invention, when the frame body 19 is removed, the compressed state of the honeycomb core 13 is released, and the restoring force to return to the original shape is directed from the inner center portion of the honeycomb core 13 to the outer peripheral edge portion. Acts in the radial direction.

この結果、ハニカムコア１３に生じた形状復元力により、表皮材１４，１５も放射方向に引っ張られるため、図４に示すように、表皮材１４，１５が伸展状態で張設される。このため、表皮材１４，１５の平面精度が向上して、表皮材１４，１５におけるコアセル１２，１２…に対応した部分にディンプルが生じることが可及的に抑制される。実験によると、表皮材１４，１５に深さ０．０７８ミリ以上のディンプルは形成されなかった。   As a result, the skin materials 14 and 15 are also pulled in the radial direction by the shape restoring force generated in the honeycomb core 13, so that the skin materials 14 and 15 are stretched in an extended state as shown in FIG. Therefore, the planar accuracy of the skin materials 14 and 15 is improved, and dimples are suppressed as much as possible in the portions corresponding to the core cells 12, 12. According to experiments, dimples having a depth of 0.078 mm or more were not formed on the skin materials 14 and 15.

斯くして、表皮材１４，１５として極薄のものを用いた場合でも、ディンプルが殆ど存在しない外観品質に優れたディンプルレスハニカムサンドイッチパネル１１を容易に製造できるのみならず、表皮材１４，１５上に固着される太陽電池セル７の割れや変形を防止することができる。尚、図４中、符号９は絶縁フィルムである。   Thus, even when ultra-thin materials are used as the skin materials 14 and 15, not only the dimple-less honeycomb sandwich panel 11 having excellent appearance quality with almost no dimples can be easily manufactured, but also the skin materials 14 and 15 It is possible to prevent cracking and deformation of the solar cell 7 fixed on the top. In FIG. 4, reference numeral 9 denotes an insulating film.

また、表皮材１４，１５に対する太陽電池セル７の固着強度が増大して製品価値が向上する。さらに、太陽電池セル７を固着する接着剤の使用量が少なくなり、材料コストを節減させることができる。   Further, the fixing strength of the solar battery cell 7 with respect to the skin materials 14 and 15 is increased, and the product value is improved. Further, the amount of adhesive used to fix the solar battery cell 7 is reduced, and the material cost can be reduced.

なお、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。   It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

本発明は、ハニカムコアの表裏両側に表皮材を貼着して成るディンプルレスハニカムサンドイッチパネルの製造方法であれば、太陽電池セル以外の製品を固着するディンプルレスハニカムサンドイッチパネルの製造方法にも全て適用することができる。   The present invention is a method for manufacturing a dimpleless honeycomb sandwich panel in which a skin material is adhered to both the front and back sides of a honeycomb core, as long as it is a method for manufacturing a dimpleless honeycomb sandwich panel for fixing products other than solar cells. Can be applied.

１１ ディンプルレスハニカムサンドイッチパネル
１２ コアセル
１３ ハニカムコア
１４，１５ 表皮材（パネルスキン）
１６ 接着剤
１９ 枠体 11 Dimpleless honeycomb sandwich panel 12 Core cell 13 Honeycomb cores 14 and 15 Skin material (panel skin)
16 Adhesive 19 Frame

Claims (1)

ハニカムコアの表裏両側に接着剤を介して表皮材を貼着して成るディンプルレスハニカムサンドイッチパネルの製造方法であって、
該ハニカムコアを枠体内に圧縮状態で装入するコア装入工程たる第１工程と、
該ハニカムコアの表裏両側に前記接着剤を介して前記表皮材を積層して、該積層体を加圧・加熱して該表皮材をハニカムコアに貼着する表皮材貼着工程たる第２工程と、
該表皮材の貼着後に前記枠体を前記ハニカムコアから取り外す枠体脱着工程たる第３工程とを備え、
該枠体の脱着時に前記ハニカムコアに生ずる形状復元力により、前記表皮材を伸展状態に張設するディンプルレスハニカムサンドイッチパネルの製造方法に
おいて、
前記ハニカムコアを枠体内に圧縮状態で装入するコア装入工程たる第１工程は、前記枠体内外周縁部全周形状に倣う環状にコアセルを装入配列し、次いで前記環状領域内側に沿って順次コアセルを装入して枠体内の中心領域に未装入部分を確保し、最後に、該未装入部分にコアセルを強制的に装入することでハニカムコア全体が略均等な圧縮応力を有して保持される工程であることを特徴とするディンプルレスハニカムサンドイッチパネルの製造方法。 A method for manufacturing a dimple-less honeycomb sandwich panel formed by adhering a skin material on both sides of a honeycomb core via an adhesive,
A first step which is a core charging step of charging the honeycomb core in a compressed state into the frame;
A second step which is a skin material adhering step in which the skin material is laminated on both the front and back sides of the honeycomb core via the adhesive, and the laminate is pressurized and heated to adhere the skin material to the honeycomb core. When,
A third step which is a frame body detaching step for removing the frame body from the honeycomb core after the skin material is attached;
The shape restoring force generated on the honeycomb core during desorption of the frame body, the manufacturing method of the dimple-less honeycomb sandwich panels which stretched the skin material in the extended state
Leave
The first step, which is a core loading step of loading the honeycomb core in a compressed state in the frame body, is to arrange the core cells in an annular shape following the entire outer peripheral edge shape of the frame body, and then along the inside of the annular region The core cells are sequentially inserted to secure a non-charged portion in the central region of the frame, and finally, the core cells are forcedly inserted into the non-charged portion so that the entire honeycomb core has a substantially uniform compressive stress. A dimple-less honeycomb sandwich panel manufacturing method, characterized by being a step of holding and holding.
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