JP3426745B2 - Resin honeycomb core and method of manufacturing the same - Google Patents
Resin honeycomb core and method of manufacturing the sameInfo
- Publication number
- JP3426745B2 JP3426745B2 JP28536794A JP28536794A JP3426745B2 JP 3426745 B2 JP3426745 B2 JP 3426745B2 JP 28536794 A JP28536794 A JP 28536794A JP 28536794 A JP28536794 A JP 28536794A JP 3426745 B2 JP3426745 B2 JP 3426745B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb core
- sub
- plate portion
- resin
- main plate
- 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 - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、樹脂製ハニカムコア及
びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin honeycomb core and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】ハニカム構造は軽量で剛性及び強度に優
れることから、フラッシュパネルや航空機の機体、鉄道
車両の車体等をはじめとする、様々な製品ないし構造体
の用途に広く用いられている。また、ハニカム構造は、
圧壊に際して大きなエネルギを吸収するため、自動車用
バンパーの芯材等をはじめとする様々な緩衝材の用途に
も用いられている。2. Description of the Related Art Since a honeycomb structure is lightweight and excellent in rigidity and strength, it is widely used for various products or structures such as flash panels, airframes of automobiles, and car bodies of railway vehicles. In addition, the honeycomb structure is
Since it absorbs a large amount of energy during crushing, it is also used in various cushioning materials such as core materials for automobile bumpers.
【０００３】[0003]
【発明が解決しようとする課題】従来、折畳式ハニカム
コアと展張固形式ハニカムコアのいずれも、紙、金属、
或いは樹脂製のリボン（一定幅のシート）を、接着条を
交互に設けながら多数積層してホーブを形成し、このホ
ーブをスライスして形成する方法が一般的であった。こ
のようなハニカムコアの形成方法では、リボンの幅がホ
ーブの高さ（コアの高さ）となるため、取り寸法によっ
ては５０％近いロスが生じる。また、樹脂製のリボンを
使用する場合には、強度等の材料特性が好適であっても
接着性に劣る樹脂は使用することができず、また、樹脂
製のリボンを用いた折畳式ハニカムコアを加熱展張した
ものには、６０℃位で元の折畳状態に戻って収縮すると
いう問題もあった。Conventionally, both folding type honeycomb cores and expanded solid type honeycomb cores are made of paper, metal,
Alternatively, a method has been generally used in which a large number of resin ribbons (sheets having a constant width) are laminated while alternately providing adhesive strips to form a hove, and the hove is sliced to form. In such a honeycomb core forming method, since the width of the ribbon becomes the height of the hove (the height of the core), a loss of nearly 50% occurs depending on the take-up dimension. Further, when a resin ribbon is used, a resin having poor adhesiveness cannot be used even if material properties such as strength are suitable, and a foldable honeycomb using the resin ribbon is used. The heat-expanded core also had a problem of returning to the original folded state at about 60 ° C. and shrinking.
【０００４】ハニカム構造は、ハニカムコアの両側に面
材を貼着したサンドイッチ構造のパネルとして利用する
のが一般的であるが、そのパネルは多くの場合平板形状
であり、それは、ハニカム構造が曲面パネルの製作には
不向きだったからである。曲面の形状が単純で曲率半径
が十分に大きなパネルであれば、ハニカムコアの可撓性
によって対応することもできるが、複雑な曲面形状を有
する製品ないし構造体や曲率半径の小さな部分を含む製
品ないし構造体では、ハニカム構造を利用できなかった
り、ハニカム構造を利用するためには製作コストがかか
り過ぎた。例えば自動車用のバンパーには、左右の端部
の近くに曲率半径の小さな屈曲部が存在するため、バン
パーの外殻部材の内部の全体にハニカムコアを充填する
ことは困難であった。The honeycomb structure is generally used as a panel having a sandwich structure in which face materials are attached to both sides of a honeycomb core, but the panel is often a flat plate shape, and the honeycomb structure has a curved surface. It was not suitable for panel production. A panel with a simple curved surface and a sufficiently large radius of curvature can be handled by the flexibility of the honeycomb core, but a product or structure that has a complicated curved surface shape or a product that includes a part with a small radius of curvature. In the structure, the honeycomb structure cannot be used, or the manufacturing cost is too high to use the honeycomb structure. For example, a bumper for an automobile has bent portions with a small radius of curvature near the left and right ends, so that it is difficult to fill the entire inside of the outer shell member of the bumper with the honeycomb core.
【０００５】本発明は以上の問題を解決すべく案出され
たものであり、本発明の目的は、上述した従来のハニカ
ムコアの欠点を克服し得る優れたハニカムコアを提供す
ることにある。また、本発明の更なる目的は、上述した
従来のハニカムコアの欠点を克服し得る優れたハニカム
コアの製造方法を提供することにある。The present invention has been devised to solve the above problems, and an object of the present invention is to provide an excellent honeycomb core which can overcome the above-mentioned drawbacks of the conventional honeycomb core. A further object of the present invention is to provide an excellent method for manufacturing a honeycomb core which can overcome the above-mentioned drawbacks of the conventional honeycomb core.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明は、次のような樹脂製ハニカムコアを提供す
るものであり、この樹脂製ハニカムコアは、可撓性を有
する樹脂を材料として一体成形してあり、各々が略々平
板形状で互いに略々平行に延展している複数の主板部
と、各々が略々平板形状で隣り合う主板部どうしを連結
している複数の副板部とを備え、隣り合う一対の主板部
と隣り合う一対の副板部とでセル壁が画成された断面形
状が略々四角形のセルが多数配列した構造を有し、前記
副板部の屈曲性を前記主板部の屈曲性より十分に大きく
してあることを特徴とする樹脂製ハニカムコアである。To achieve the above object, the present invention provides the following resin honeycomb core, which is made of a flexible resin material. As a single plate, each of which has a substantially flat plate shape and extends substantially in parallel with each other, and a plurality of sub plates which connect adjacent main plate parts each having a substantially flat plate shape. Section, the cross-sectional shape of the cell wall is defined by a pair of adjacent sub-plate portion and a pair of adjacent sub-plate portion has a structure in which a large number of substantially square cells are arranged, the sub-plate portion The resin honeycomb core is characterized in that its flexibility is made sufficiently larger than that of the main plate portion.
【０００７】前記副板部の屈曲性を前記主板部の屈曲性
より十分に大きくするためには、前記副板部の厚さを前
記主板部の厚さの２分の１以下にしたり、前記副板部が
画成しているセル壁の略々中央部に前記セルの延在方向
に沿って延在する凹溝を形成するのが良い。また、この
樹脂製ハニカムコアは、熱可塑性樹脂を材料とし、押出
成形ないし射出成形によって一体成形したものとするこ
とが好ましい。In order to make the flexibility of the sub-plate portion sufficiently larger than the flexibility of the main plate portion, the thickness of the sub-plate portion is set to 1/2 or less of the thickness of the main plate portion, or It is preferable to form a concave groove extending along the extending direction of the cell substantially in the center of the cell wall defined by the sub-plate portion. Further, it is preferable that the resin honeycomb core is made of a thermoplastic resin and integrally formed by extrusion molding or injection molding.
【０００８】本発明は更に、次のような樹脂製ハニカム
コアの製造方法を提供するものであり、この樹脂製ハニ
カムコアの製造方法は、ハニカムコアの断面形状に対応
した形状の吐出口を有する押出用金型を用意する工程
と、前記押出用金型を取付けた押出機から熱溶融した熱
可塑性樹脂を押出して冷却することによって長尺の多胞
体を成形する工程と、前記長尺の多胞体を所要寸法に切
断し、もって、各々が略々平板形状で互いに略々平行に
延展している複数の主板部と、各々が略々平板形状で隣
り合う主板部どうしを連結している複数の副板部とを備
え、隣り合う一対の主板部と隣り合う一対の副板部とで
セル壁が画成された断面形状が略々四角形のセルが多数
配列した構造を有し、前記副板部の屈曲性を前記主板部
の屈曲性より十分に大きくした一体成形樹脂製ハニカム
コアを得る工程と、を含んでいることを特徴とする樹脂
製ハニカムコアの製造方法である。The present invention further provides the following method for manufacturing a resin honeycomb core, which has a discharge port having a shape corresponding to the cross-sectional shape of the honeycomb core. A step of preparing an extrusion die, a step of extruding a heat-melted thermoplastic resin from an extruder equipped with the extrusion die and cooling to form a long multicellular body; A plurality of main plate parts, each of which has a substantially flat plate shape and extends substantially parallel to each other, and a plurality of main plate parts, which are substantially flat plate shapes and are adjacent to each other, are connected to each other And a sub-plate portion having a structure in which a large number of cells each having a substantially rectangular cross section in which a cell wall is defined by a pair of adjacent main plate portions and a pair of adjacent sub-plate portions are arranged, The flexibility of the plate part is more than that of the main plate part. A method for producing a resin-made honeycomb core, characterized in that it includes the steps of obtaining a listening the integrally molded resin honeycomb core, the.
【０００９】本発明は更に、次のような樹脂製ハニカム
コアの製造方法を提供するものであり、この樹脂製ハニ
カムコアの製造方法は、ハニカムコアの形状に対応した
形状の成形品キャビティを有する射出成形用金型を用意
する工程と、前記射出成形用金型を取付けた射出成形機
で、各々が略々平板形状で互いに略々平行に延展してい
る複数の主板部と、各々が略々平板形状で隣り合う主板
部どうしを連結している複数の副板部とを備え、隣り合
う一対の主板部と隣り合う一対の副板部とでセル壁が画
成された断面形状が略々四角形のセルが多数配列した構
造を有し、前記副板部の屈曲性を前記主板部の屈曲性よ
り十分に大きくした樹脂製ハニカムコアを一体成形する
工程と、を含んでいることを特徴とする樹脂製ハニカム
コアの製造方法である。The present invention further provides the following method for manufacturing a resin honeycomb core, which has a molded product cavity having a shape corresponding to the shape of the honeycomb core. A step of preparing an injection molding die; a plurality of main plate portions each having a substantially flat plate shape and extending substantially parallel to each other in an injection molding machine to which the injection molding die is attached; Each having a plurality of sub-plate parts that connect adjacent main plate parts in a flat plate shape, and a cross-sectional shape in which a cell wall is defined by a pair of adjacent main plate parts and a pair of adjacent sub-plate parts is substantially Each has a structure in which a large number of square cells are arranged, and a step of integrally molding a resin honeycomb core in which the flexibility of the sub-plate portion is sufficiently larger than the flexibility of the main plate portion. In the manufacturing method of resin honeycomb core That.
【００１０】[0010]
【実施例】以下、図面を参照しつつ本発明の実施例につ
いて説明して行く。図１のＡ〜Ｃは、本発明の実施例に
係るハニカムコア１０の断面図（ハニカムコア１０のセ
ルの延在方向に対して垂直な平面で切断した断面図）で
ある。ハニカムコア１０は図面の紙面に対して垂直な方
向に厚さを有するため、図中に直線棒状に描かれている
部分はいずれも実際には平板形状である。Embodiments of the present invention will be described below with reference to the drawings. 1A to 1C are cross-sectional views of a honeycomb core 10 according to an example of the present invention (cross-sectional views cut along a plane perpendicular to the cell extending direction of the honeycomb core 10). Since the honeycomb core 10 has a thickness in the direction perpendicular to the paper surface of the drawing, all the portions drawn as straight rods in the drawing are actually flat plates.
【００１１】ハニカムコア１０は、可撓性を有する熱可
塑性樹脂を材料とし、後述するように押出成形ないし射
出成形によって一体成形したものである。図１のＡに示
すように、この樹脂性ハニカムコア１０は、各々が略々
平板形状で互いに略々平行に延展している複数の主板部
Ｍ１、Ｍ２、Ｍ３、Ｍ４... と、各々が略々平板形状で
隣り合う主板部どうしを連結している複数の副板部Ｓ１
１、Ｓ１２、Ｓ１３、Ｓ２１、Ｓ２２、Ｓ２３、Ｓ３
１、Ｓ３２、Ｓ３３... とを備えており、それら主板部
と副板部とで格子状の構造が形成されている。また更に
これによって、縦横に行列状に配列した断面が略々四角
形の多数のセルＣ１１、Ｃ１２、Ｃ１３、Ｃ２１、Ｃ２
２、Ｃ２３... が画成されている。The honeycomb core 10 is made of a thermoplastic resin having flexibility and is integrally molded by extrusion molding or injection molding as described later. As shown in FIG. 1A, this resinous honeycomb core 10 includes a plurality of main plate portions M1, M2, M3, M4 ... Each of which has a substantially flat plate shape and extends substantially parallel to each other. A plurality of sub-plate portions S1 having a substantially flat plate shape and connecting adjacent main plate portions.
1, S12, S13, S21, S22, S23, S3
1, S32, S33 ... And the main plate portion and the sub plate portion form a lattice-like structure. Furthermore, by this, a large number of cells C11, C12, C13, C21, C2 arranged in a matrix in the vertical and horizontal directions and having a substantially rectangular cross section are provided.
2, C23 ... is defined.
【００１２】より詳しくは、隣り合う一対の主板部（例
えばＭ１とＭ２）と、隣り合う一対の副板部（例えばＳ
１１とＳ２１）とで、個々のセル（この場合はＣ１１）
の四方のセル壁が画成されている。More specifically, a pair of adjacent main plate portions (for example, M1 and M2) and a pair of adjacent sub plate portions (for example, S).
11 and S21), an individual cell (C11 in this case)
The cell walls on four sides are defined.
【００１３】ハニカムコア１０の材料として用いる、可
撓性を有する熱可塑性樹脂の具体例としては、ポリプロ
ピレン（ＰＰ）やポリエチレン（ＰＥ）があり、これら
の材料は廃棄処分やリサイクルの点から望ましいもので
あるが、ただし、これら以外にも、押出成形または射出
成形が可能な様々な樹脂をハニカムコア１０の材料とし
て用いることができる。Specific examples of the flexible thermoplastic resin used as the material of the honeycomb core 10 include polypropylene (PP) and polyethylene (PE), and these materials are desirable from the viewpoint of disposal and recycling. However, in addition to these, various resins that can be extrusion-molded or injection-molded can be used as the material of the honeycomb core 10.
【００１４】実施例のハニカムコア１０の各部の寸法
は、主板部の厚さＴm が０．３mm、副板部の厚さＴs が
０．１mm、主板部が画成しているセル壁の長さＬm が１
０mm、そして副板部が画成しているセル壁の長さＬs が
８mmである。これらの寸法がハニカムコアの具体的な用
途に応じて様々な値に設定されることは言うまでもない
が、ただし、好ましい値の範囲を例示するならば、例え
ば、主板部の厚さＴm は０．２mm〜１０mm、副板部の厚
さＴs は０．１mm〜５mm、主板部が画成しているセル壁
の長さＬm は５mm〜１００mm、そして副板部が画成して
いるセル壁の長さＬs は４mm〜９５mmとするのが良い。The dimensions of each portion of the honeycomb core 10 of the embodiment are as follows: the thickness Tm of the main plate portion is 0.3 mm, the thickness Ts of the sub plate portion is 0.1 mm, and the length of the cell wall defined by the main plate portion is long. Lm is 1
0 mm, and the length Ls of the cell wall defined by the sub-plate portion is 8 mm. It goes without saying that these dimensions are set to various values depending on the specific application of the honeycomb core, but if the preferred value range is illustrated, for example, the thickness Tm of the main plate portion is 0. 2 mm to 10 mm, the thickness Ts of the sub-plate portion is 0.1 mm to 5 mm, the length Lm of the cell wall defined by the main plate portion is 5 mm to 100 mm, and the cell wall defined by the sub-plate portion is The length Ls is preferably 4 mm to 95 mm.
【００１５】図示例のハニカムコア１０において、主板
部の厚さＴm を副板部の厚さＴs の３倍にしてあるの
は、副板部の屈曲性を前記主板部の屈曲性より十分に大
きくするためであり、これによって、図１のＢないしＣ
に示したように、副板部の延在方向への圧縮力（矢印Ｆ
で示した）が加わったときに主板部が殆ど屈曲すること
なく副板部だけが大きく屈曲するようにしている。一般
的に、副板部の厚さＴsを主板部の厚さＴm の２分の１
以下にすれば、両者の屈曲性に十分な差をつけられるこ
とが多い。尚、図１のＢは、ハニカムコア１０を圧縮力
Ｆによって７５％まで圧縮した状態を示しており、図１
のＣは、４０％まで圧縮した状態を示している。In the honeycomb core 10 of the illustrated example, the thickness Tm of the main plate portion is set to be three times the thickness Ts of the sub plate portion because the flexibility of the sub plate portion is sufficiently larger than that of the main plate portion. This is to increase the size, and as a result, B to C in FIG.
As shown in, the compressive force (arrow F
(Indicated by (4)), the main plate portion is hardly bent, and only the sub plate portion is largely bent. Generally, the thickness Ts of the sub-plate portion is half the thickness Tm of the main plate portion.
In the following cases, it is often possible to make a sufficient difference in flexibility between the two. 1B shows a state in which the honeycomb core 10 is compressed by the compression force F to 75%.
C shows the state compressed to 40%.
【００１６】ハニカムコア１０には更に、副板部が画成
しているセル壁の略々中央部にセルの延在方向に沿って
延在する断面Ｖ字形の溝Ｖ１１、Ｖ１２、Ｖ１３、Ｖ２
１、Ｖ２２、Ｖ３３、Ｖ３１、Ｖ３２、Ｖ３３... を形
成してある。このように溝を形成したのは、１つには副
板部の屈曲性を更に高めるためであり、もう１つには図
１のＢないしＣのように圧縮したときに、副板部が丁度
その中央部で屈曲するようにするためである。尚、この
効果を得るための溝の断面形状は必ずしもＶ字形に限ら
れず、Ｕ字形、台形、それに凹レンズ状のなだらかなカ
ーブをしたもの等、様々な形状にすることができる。更
には、溝の深さや幅も様々なものとすることができる
が、ただし溝の深さは、副板部の厚さの３分の２程度と
すると良好な結果が得られることが多い。The honeycomb core 10 is further provided with grooves V11, V12, V13, V2 having a V-shaped cross section which extends along the extending direction of the cell in the substantially central portion of the cell wall defining the sub-plate portion.
1, V22, V33, V31, V32, V33 ... The reason for forming the groove in this way is to further increase the flexibility of the sub-plate portion, and the other is to form the sub-plate portion when compressed as shown in FIGS. This is so that it bends exactly at the center. The cross-sectional shape of the groove for obtaining this effect is not necessarily limited to the V-shape, but can be various shapes such as a U-shape, a trapezoid, and a concave lens-like gentle curve. Further, the depth and width of the groove can be varied, but a good result is often obtained when the depth of the groove is about two-thirds of the thickness of the sub plate portion.
【００１７】図示例のハニカムコア１０において、副板
部が画成しているセル壁の長さＬsを主板部が画成して
いるセル壁の長さＬm より僅かに短くしてあるのは、ハ
ニカムコア１０を図１のＢやＣのように圧縮する際に、
それらの図の副板部Ｓ２３及びＳ３３の如く、隣り合っ
た２つの副板部が互いに逆向きに屈曲した場合にも、そ
れら屈曲部どうしがぶつかりあったり重なり合ったりす
ることを防止し、ハニカムコア１０を最大限に圧縮し得
るようにするためである。ハニカムコア１０を最大限に
圧縮すると、後に説明するホーブの切断加工が容易にな
る。In the honeycomb core 10 of the illustrated example, the length Ls of the cell wall defined by the sub-plate portion is slightly shorter than the length Lm of the cell wall defined by the main plate portion. When compressing the honeycomb core 10 as shown in B and C of FIG. 1,
Even when two adjacent sub-plate portions are bent in opposite directions like the sub-plate portions S23 and S33 in these figures, the bent portions are prevented from colliding with each other or overlapping each other. This is so that 10 can be compressed to the maximum. When the honeycomb core 10 is compressed to the maximum extent, the cutting process of the hobe described later becomes easy.
【００１８】ハニカムコア１０の大きな利点の１つに、
副板部の大きな屈曲性を利用して、副板部を屈曲させる
ことで主板部どうしの相対位置を変化させることができ
るため、ハニカムコア１０の全体として可撓性が大きい
ということがある。副板部を屈曲させてハニカムコア１
０の全体を所望の形状に撓めた状態を図２に斜視図で示
した。ハニカムコア１０の全体としてのこの大きな可撓
性のために、複雑な曲面を有する製品ないし構造体や曲
率半径の小さな部分を含んでいる製品ないし構造体にも
ハニカム構造を容易に採用できるようになっており、し
かも副板部を屈曲させても主板部が殆ど撓まないことか
ら、ハニカム構造に求められる強度を、主板部によって
維持することができる。これについては、図１に示した
ハニカムコア１０を、自動車用バンパーの外殻部材の内
部に緩衝材として充填する場合を例に取って、後に図６
のＡ〜Ｄを参照しつつ更に詳細に説明する。One of the great advantages of the honeycomb core 10 is that
Since the relative position of the main plate portions can be changed by bending the sub plate portion by utilizing the great flexibility of the sub plate portion, the flexibility of the honeycomb core 10 as a whole may be large. Bending the sub plate part to make the honeycomb core 1
FIG. 2 is a perspective view showing a state in which the entire 0 is bent into a desired shape. Because of the large flexibility of the honeycomb core 10 as a whole, the honeycomb structure can be easily adopted for a product or a structure having a complicated curved surface or a product or a structure including a portion having a small radius of curvature. Since the main plate portion hardly bends even when the sub plate portion is bent, the strength required for the honeycomb structure can be maintained by the main plate portion. For this, the case where the honeycomb core 10 shown in FIG. 1 is filled as a cushioning material inside the outer shell member of an automobile bumper will be described as an example.
A to D will be described in more detail.
【００１９】これより、図１に示したハニカムコア１０
の製造方法について説明する。ハニカムコア１０は、可
撓性を有する熱可塑性樹脂を材料とし、一体成形によっ
て形成するものであることから、押出成形ないし射出成
形によって製造することが望ましい。From this, the honeycomb core 10 shown in FIG.
The manufacturing method of will be described. Since the honeycomb core 10 is made of a thermoplastic resin having flexibility and is formed by integral molding, it is desirable to manufacture it by extrusion molding or injection molding.
【００２０】押出成形法を用いる場合には、先ず、ハニ
カムコア１０の断面形状に対応した形状の吐出口を有す
る押出用金型を用意する。そして、この押出用金型を取
付けた押出機から熱溶融した熱可塑性樹脂を押出して冷
却することによって、長尺のホーブ（多胞体）を成形す
る。更に、その長尺のホーブ（多胞体）を所要寸法に切
断して、図１に示した形状の一体成形樹脂製ハニカムコ
アを得る。この方法によれば長尺のホーブが連続して得
られるため生産性が高く、また、断面形状が同一でセル
の高さが様々に異なるハニカムコアを製造するのにも有
利である。When the extrusion molding method is used, first, an extrusion die having a discharge port having a shape corresponding to the sectional shape of the honeycomb core 10 is prepared. Then, a thermoplastic resin that has been melted by heat is extruded from an extruder equipped with this extrusion die and cooled to form a long hove (multicellular body). Further, the long hobe (multicellular body) is cut into a required size to obtain an integrally molded resin honeycomb core having the shape shown in FIG. According to this method, long hoves can be continuously obtained, so that productivity is high, and it is also advantageous for manufacturing honeycomb cores having the same sectional shape but different cell heights.
【００２１】図３〜図５には、本発明に係るハニカムコ
アの製造方法のうち、押出成形法に基づいた製造方法に
用いる具体例の押出用金型２０を示した。図３は金型２
０の斜視図、図４は金型２０の吐出口の拡大図、図５は
金型２０を図３の５−５線で切断して上部を除去した切
断斜視図である。図３に示すように、金型２０の上部に
は図１のハニカムコア１０の断面形状に対応した格子形
状の吐出口３０が形成されている。図４に示すように、
この吐出口３０は、主板部に対応した形状の幅の広い溝
部Ｍ’と、副板部に対応した形状の幅の狭い溝部Ｓ’と
を備えており、幅の狭い溝部Ｓ’の中へは、副板部の断
面Ｖ字形の溝に対応した位置に、この断面Ｖ字形の溝に
対応した断面山形の突条部Ｖ’が突出している。金型２
０の底部には、複数本の導入溝Ｉ１、Ｉ２、Ｉ３... を
形成してあり、それら導入溝は、夫々が溝部Ｍ’の真下
を延在している。図５に示すように、溝部Ｍ’とＳ’と
の各交点ごとに、垂直に延在するランナＲを穿設してあ
り、それらランナＲによって、導入溝Ｉ１、Ｉ２、Ｉ
３... と吐出口３０とを連通させている。3 to 5 show an extrusion die 20 of a specific example used in the manufacturing method based on the extrusion molding method in the manufacturing method of the honeycomb core according to the present invention. Figure 3 shows mold 2
0 is a perspective view, FIG. 4 is an enlarged view of the discharge port of the mold 20, and FIG. 5 is a cut perspective view in which the mold 20 is cut along the line 5-5 in FIG. As shown in FIG. 3, on the upper part of the die 20, there are formed ejection openings 30 having a lattice shape corresponding to the cross-sectional shape of the honeycomb core 10 of FIG. As shown in FIG.
This discharge port 30 is provided with a wide groove portion M ′ having a shape corresponding to the main plate portion and a narrow groove portion S ′ having a shape corresponding to the sub plate portion. Has a projecting ridge portion V'having a mountain-shaped cross section corresponding to the groove having the V-shaped cross section at a position corresponding to the groove having the V-shaped cross section. Mold 2
A plurality of introduction grooves I1, I2, I3 ... Are formed in the bottom portion of 0, and each of the introduction grooves extends directly below the groove portion M ′. As shown in FIG. 5, a vertically extending runner R is bored at each intersection of the groove portions M ′ and S ′, and the runners R allow introduction grooves I1, I2, I
3 ... and the discharge port 30 are connected.
【００２２】金型２０は不図示の押出機に取付けられ、
押出機は熱溶融した樹脂を金型２０の底部の導入溝Ｉ
１、Ｉ２、Ｉ３... へ送り込む。樹脂はそれら導入溝か
らランナＲを介して吐出口３０へ流動し、この吐出口３
０から図１に示したハニカムコア１０の断面形状となっ
て押し出され、冷却され、これによって長尺のホーブの
成形が完了する。この後、この長尺のホーブを所要寸法
に切断して、一体成形樹脂製ハニカムコアを得る。尚、
先に触れたように、長尺のホーブを所要寸法に切断する
際には、ホーブを図１のＢないしＣに示した矢印Ｆの方
向に最大限に圧縮した状態で切断加工すれば、小型の切
断機械で迅速に切断が行なえるため非常に有利である。
勿論、熱線等を用いて拡張した状態で切断することも可
能である。The mold 20 is attached to an extruder (not shown),
The extruder uses a heat-melted resin for introducing a groove I at the bottom of the mold 20.
Send to 1, I2, I3 ... The resin flows from these introduction grooves to the discharge port 30 through the runner R, and the discharge port 3
The honeycomb core 10 shown in FIG. 1 has a cross-sectional shape shown in FIG. 1 and is extruded and cooled, thereby completing the molding of the long hobe. After this, this long hobe is cut into a required size to obtain an integrally molded resin honeycomb core. still,
As mentioned above, when cutting a long hove to the required size, if the hob is compressed in the direction of arrow F shown in FIGS. It is very advantageous because it can be cut quickly by the cutting machine of.
Of course, it is also possible to cut in an expanded state using a hot wire or the like.
【００２３】射出成形法を用いる場合には、先ず、ハニ
カムコア１０の形状に対応した形状の成形品キャビティ
を有する射出成形用金型を用意する。そして、この射出
成形用金型を取付けた射出成形機で、図１に示した形状
の樹脂製ハニカムコアを一体成形する。この方法は、断
面形状が同一でセルの高さも同一のハニカムコアを大量
に製造するのに有利である。When using the injection molding method, first, an injection molding die having a molded product cavity having a shape corresponding to the shape of the honeycomb core 10 is prepared. Then, the resin-made honeycomb core having the shape shown in FIG. 1 is integrally molded by an injection molding machine equipped with this injection molding die. This method is advantageous for mass-producing honeycomb cores having the same sectional shape and the same cell height.
【００２４】次に図６のＡ〜Ｄを参照して、図１のハニ
カムコア１０を自動車用バンパーの外殻部材の内部に緩
衝材として充填する工程について説明する。Next, with reference to FIGS. 6A to 6D, a process of filling the honeycomb core 10 of FIG. 1 into the outer shell member of the automobile bumper as a cushioning material will be described.
【００２５】図６のＡは自動車用のフロントパンバーの
外殻部材４０である。外殻部材４０は、ポリウレタンや
ポリプロピレン等の材料で形成されており、左右両端部
が後方へ向かって小さな曲率半径で屈曲している。図６
のＢは外殻部材４０の中に充填するハニカムコア部材５
０を示している。このハニカムコア部材５０は、押出成
形したホーブから削り出しても良く（その場合は、ホー
ブを圧縮した状態で切削すると良い。ただし、圧縮した
状態の形状と圧縮から復元した状態の形状との対応を予
め計算しておく必要がある。又、その削り出しや切削に
は熱線や熱盤を併用した熔融変形の方法をとることもで
きる）、或いは、射出成形によって必要な形状のハニカ
ムコア部材５０を成形するようにしても良い。ハニカム
コア部材５０には、プレート取付部の窪みや、ランプ取
付口の切欠部分を形成しておく。また、ハニカムコア部
材５０の材料取りは、図示の如く、主板部が垂直前後方
向に延展し、副板部が水平方向に延展するように（従っ
てセルが前後方向に延在するように）材料取りしてお
く。このハニカムコア部材５０を、図６のＣに示したよ
うに外殻部材４０の内部空洞の形状に屈曲させ、その内
部空洞に充填して、必要に応じて熱融着させたり、接着
剤等を用いて固定する。特に、図６のＤに拡大して示し
たように、ハニカムコア部材５０を屈曲させたとき、そ
の屈曲部分では、副板部が屈曲するだけであり、強度を
担いエネルギを吸収する機能を果たす主板部は屈曲しな
い。又、図６のＢ，Ｃにはセルを一列で示してあるが、
実際には数列になることもある。FIG. 6A shows an outer shell member 40 of a front pan bar for an automobile. The outer shell member 40 is made of a material such as polyurethane or polypropylene, and its left and right ends are bent rearward with a small radius of curvature. Figure 6
B is a honeycomb core member 5 filled in the outer shell member 40.
0 is shown. The honeycomb core member 50 may be cut out from an extrusion-molded hobe (in that case, the hobe may be cut in a compressed state. However, the correspondence between the shape in the compressed state and the shape in the state restored from the compression) In addition, the shaving and cutting can be performed by a melt deformation method using a hot wire or a heating plate), or the honeycomb core member 50 having a required shape by injection molding. May be molded. In the honeycomb core member 50, a recess of the plate mounting portion and a cutout portion of the lamp mounting port are formed. Further, as shown in the drawing, the material of the honeycomb core member 50 is made so that the main plate portion extends vertically in the front-rear direction and the sub-plate portion extends horizontally (hence, the cells extend in the front-rear direction). Set aside. As shown in FIG. 6C, the honeycomb core member 50 is bent into the shape of the inner cavity of the outer shell member 40, and the inner cavity is filled with the honeycomb core member 50 and heat-sealed as necessary. Use to fix. In particular, as enlargedly shown in FIG. 6D, when the honeycomb core member 50 is bent, only the sub-plate portion bends at the bent portion, and the strength is absorbed and the function of absorbing energy is fulfilled. The main plate does not bend. Further, although cells are shown in a line in B and C of FIG. 6,
It may actually be a sequence of numbers.
【００２６】こうして完成した自動車用バンパーでは、
ハニカムコア部材５０の全ての主板部が外殻部材の表面
に対して垂直に（従って、バンパーにものが衝突したと
きに作用する衝撃力の方向に）延展しているため、主板
部によって大きな強度が得られていると共に、衝突時に
は主板部の屈曲ないし圧壊によって大きなエネルギが吸
収される。ハニカムコア部材５０の前後方向の厚さは衝
突時の減速度を大きく左右する要因であるため、特にバ
ンパーの試作時には、長尺のホーブからハニカムコア部
材を削り出すようにすれば、ハニカムコア部材５０の前
後方向の厚さの調節が容易であるという利点が得られ
る。量産バンパーには射出成形法で製造したハニカムコ
ア部材５０を用いる方が有利であろう。In the automobile bumper thus completed,
Since all the main plate portions of the honeycomb core member 50 extend perpendicularly to the surface of the outer shell member (thus, in the direction of the impact force that acts when the bumper hits the object), the main plate portion has a greater strength. In addition, a large amount of energy is absorbed by the bending or crushing of the main plate during a collision. The thickness of the honeycomb core member 50 in the front-rear direction has a great influence on the deceleration at the time of a collision. The advantage is that the thickness of 50 in the front-back direction can be easily adjusted. It may be advantageous to use the honeycomb core member 50 manufactured by the injection molding method for the mass production bumper.
【００２７】本発明に係るハニカムコアは、外力（図１
のＢ，ＣのＦ参照）を加えると副板部が容易に屈曲する
ため、ハニカムコアを所期の形状に帰属させることがで
きる一方で、外力を除くと副板部が元の形に復帰するた
めハニカムコアが元の形状に戻る。したがって、本発明
のハニカムコアは形状記憶性を有する。そのため、ハニ
カムコア部材５０をバンパーの外殻部材４０の内部に装
填する際に、細心の注意を払って作業をせずともハニカ
ムコア部材５０を損傷させるおそれがないことから作業
性が向上し、しかも必要とあらば何度でも装填作業をや
り直すことができるため、作業の仕損じによる不良品の
発生も回避される。更に、本発明に係るハニカムコア
は、従来のペーパー製ハニカムコアのように、高湿、及
び水濡れに弱いという欠点を持たず、また、従来の金属
製ハニカムコアのように、排気ガス、海水、それに融雪
剤等に弱いという欠点も持たないことからも、自動車用
バンパーの緩衝材として用いるのに非常に適したもので
ある。The honeycomb core according to the present invention has an external force (see FIG.
(Refer to F of B and C), the sub-plate part bends easily, so that the honeycomb core can be attributed to the desired shape, but when external force is removed, the sub-plate part returns to its original shape. Therefore, the honeycomb core returns to its original shape. Therefore, the honeycomb core of the present invention has a shape memory property. Therefore, when the honeycomb core member 50 is loaded inside the outer shell member 40 of the bumper, the workability is improved because there is no possibility of damaging the honeycomb core member 50 without careful work. In addition, since the loading work can be redone as many times as necessary, the occurrence of defective products due to work failure can be avoided. Furthermore, the honeycomb core according to the present invention does not have the drawback of being vulnerable to high humidity and water wetting, unlike conventional paper honeycomb cores, and, like conventional metal honeycomb cores, exhaust gas, seawater. In addition, it is also very suitable for use as a cushioning material for automobile bumpers because it does not have the drawback that it is weak against snow melting agents.
【００２８】本発明のハニカムコアは、更にその他の多
くの用途にも適したものである。例えば、ハニカム構造
の床板パネルに本発明のハニカムコアを用いると、消音
効果の高い床板パネルが得られる。またその場合に、ハ
ニカムコアの材料樹脂として弾性係数の大きな樹脂を選
択したり、ハニカムコアと面材とを熱融着によって接合
した構造にしたりすれば、打撃波の伝搬特性の改善が期
待できる。The honeycomb core of the present invention is also suitable for many other applications. For example, when the honeycomb core of the present invention is used in a floorboard panel having a honeycomb structure, a floorboard panel having a high sound deadening effect can be obtained. In that case, if a resin having a large elastic coefficient is selected as the material resin of the honeycomb core, or if the honeycomb core and the face material are joined by heat fusion, the propagation characteristics of the impact wave can be expected to be improved. .
【００２９】本発明のハニカムコアは魚礁用ブロックの
製造にも適している。現在魚礁用ブロックとしては大型
のコンクリートブロック等が沈設されているが、本発明
のハニカムコアをポリエチレンで製作し、それを同材質
の面板と熱融着したパネルを用いて魚礁用ブロックを製
造すれば、海水によって劣化することもなく、そのパネ
ルの内部に海水を導入することも可能である。又、軽量
であるから運搬や現地組立作業も容易である上、海底に
汚泥が堆積している場所でも、汚泥に埋れてしまうのを
防止することができる。更に又、浴室の流し場の床上に
併設して湯水を含ませる蓄熱マットとしての使用も可能
である。The honeycomb core of the present invention is also suitable for manufacturing fish reef blocks. Although large concrete blocks are currently being sunk as fish reef blocks, it is recommended that the honeycomb core of the present invention be made of polyethylene and the fish reef blocks be manufactured using a face plate of the same material and a heat-sealed panel. For example, it is possible to introduce seawater into the panel without deterioration by seawater. Further, since it is lightweight, it can be easily transported and assembled on site, and it can be prevented from being buried in sludge even in a place where sludge is accumulated on the seabed. Furthermore, it can also be used as a heat storage mat that is placed on the floor of a bathroom sink to contain hot water.
【００３０】本発明のハニカムコアの構造は、本来のハ
ニカムコア以外の用途にも利用し得るものであり、例え
ば種苗育成ポットとして利用することができる。即ち、
セルの高さを２０mm〜３０mm程度にスライスしたもの
を、透水性を有する例えば網板等から成る底板の上に載
置して、個々のセルの中に土壌を充填すれば、このスラ
イスした「ハニカムコア」が種苗育成ポットの枠体にな
る。苗が成育した後に、その枠体を図１のＡの状態から
Ｂの状態へ近付けるように数％程度圧縮して復元する
と、土壌が簡単に枠体から分離するため、苗の取出しが
容易である。また、この枠体は反復利用することができ
る。The structure of the honeycomb core of the present invention can be used for purposes other than the original honeycomb core, and can be used, for example, as a seedling growing pot. That is,
A sliced cell having a height of about 20 mm to 30 mm is placed on a water-permeable bottom plate made of, for example, a mesh plate, and the individual cells are filled with soil to obtain this sliced " The "honeycomb core" becomes the frame for the seedling growing pot. After the seedlings have grown up, if the frame is compressed by about a few percent so that it approaches the state B in Fig. 1 and restored, the soil is easily separated from the frame, making it easy to take out the seedlings. is there. Moreover, this frame can be repeatedly used.
【００３１】[0031]
【発明の効果】以上の説明から明らかなように、本発明
の樹脂製ハニカムコアは、複雑な曲面形状を有する製品
ないし構造体や、曲率半径の小さな部分を含む製品ない
し構造体にも、容易にハニカム構造を採用できるように
するという、優れた利点を提供する。また、本発明の樹
脂製ハニカムコアは形状記憶性を有するため、従来のハ
ニカムコアのように取扱に際して細心の注意を払う必要
がなく、ハニカム構造を利用した製品ないし構造体の生
産性が向上するという利点も得られる。As is apparent from the above description, the resin honeycomb core of the present invention can be easily applied to a product or structure having a complicated curved surface shape or a product or structure including a portion having a small radius of curvature. It provides an excellent advantage that a honeycomb structure can be adopted in the. Further, since the resin honeycomb core of the present invention has a shape memory property, it is not necessary to take the utmost care in handling as in the conventional honeycomb core, and the productivity of the product or structure using the honeycomb structure is improved. There is also an advantage.
【００３２】本発明の樹脂製ハニカムコアの製造方法
は、リボンを積層してホーブを製作するという従来の方
法と比較して、製造コストが大幅に低下するという利点
を提供する上、積層のための接着工程を含まないため、
使用する樹脂材料の選択に際して積層時の接着性を考慮
する必要がなく、樹脂材料の選択の幅が広いという利点
も得られる。The resin honeycomb core manufacturing method of the present invention provides the advantage that the manufacturing cost is significantly reduced as compared with the conventional method of manufacturing ribbons by stacking ribbons. Since it does not include the bonding process of
When selecting the resin material to be used, it is not necessary to consider the adhesiveness at the time of lamination, and there is an advantage that the range of selection of the resin material is wide.
【００３３】押出成形で長尺のホーブを形成するように
した製造方法を採用した場合には、そのホーブの高さを
最終製品の歩留を考慮して任意に設定することができる
という利点が得られる。また、押出成形に基づいた製造
方法と、射出成形に基づいた製造方法との、いずれにお
いても著しい量産効果が期待できる。When a manufacturing method in which a long hove is formed by extrusion molding is adopted, there is an advantage that the height of the hobe can be arbitrarily set in consideration of the yield of the final product. can get. Further, in both the manufacturing method based on extrusion molding and the manufacturing method based on injection molding, a remarkable mass production effect can be expected.
【図１】本発明の実施例に係るハニカムコアの、そのセ
ルの延在方向に対して垂直な平面で切断した断面図であ
り、Ａは圧縮力が作用していないときの断面、Ｂは７５
％まで圧縮したときの断面、そしてＣは４０％まで圧縮
したときの断面を示している。FIG. 1 is a cross-sectional view of a honeycomb core according to an example of the present invention, taken along a plane perpendicular to the cell extending direction, where A is a cross section when no compressive force is applied, and B is a cross section. 75
% Shows the cross section when compressed, and C shows the cross section when compressed to 40%.
【図２】副板部を屈曲させて、図１のハニカムコアの全
体を所望の形状に撓めた状態を示した斜視図である。FIG. 2 is a perspective view showing a state where the sub-plate portion is bent and the entire honeycomb core of FIG. 1 is bent into a desired shape.
【図３】本発明に係るハニカムコアの製造方法のうち、
押出成形法に基づいた製造方法に用いる具体例の押出用
金型の斜視図である。[FIG. 3] Of the method for manufacturing a honeycomb core according to the present invention,
It is a perspective view of the extrusion die of a specific example used for the manufacturing method based on an extrusion molding method.
【図４】図３に示した金型２０の吐出口の拡大図であ
る。4 is an enlarged view of a discharge port of the mold 20 shown in FIG.
【図５】図３に示した金型２０を、図３の５−５線で切
断して上部を除去した切断斜視図である。5 is a cut perspective view of the mold 20 shown in FIG. 3 taken along line 5-5 of FIG. 3 to remove the upper portion.
【図６】図１のハニカムコアを自動車用バンパーの外殻
部材の内部に緩衝材として充填する工程を説明した図で
あり、Ａは自動車用のフロントパンバーの外殻部材、Ｂ
は外殻部材の中に充填するハニカムコア部材、Ｃは外殻
部材の内部空洞の形状に屈曲させたハニカムコア部材、
そしてＤは屈曲させたハニカムコア部材の屈曲部分の拡
大図である。6 is a diagram illustrating a step of filling the honeycomb core of FIG. 1 into the outer shell member of an automobile bumper as a cushioning material, where A is an outer shell member of a front pan bar for an automobile and B
Is a honeycomb core member to be filled in the outer shell member, C is a honeycomb core member bent into the shape of the inner cavity of the outer shell member,
And D is an enlarged view of the bent portion of the bent honeycomb core member.
１０ ハニカムコア Ｍ１、Ｍ２、Ｍ３、Ｍ４ 主板部 Ｓ１１、Ｓ１２、Ｓ１３ 副板部 Ｓ２１、Ｓ２２、Ｓ２３ 副板部 Ｓ３１、Ｓ３２、Ｓ３３ 副板部 Ｃ１１、Ｃ１２、Ｃ１３ セル Ｃ２１、Ｃ２２、Ｃ２３ セル 10 Honeycomb core M1, M2, M3, M4 Main plate part S11, S12, S13 Secondary plate part S21, S22, S23 Secondary plate part S31, S32, S33 Sub-plate part C11, C12, C13 cells C21, C22, C23 cells
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ // Ｂ２９Ｌ 31:60 Ｂ２９Ｌ 31:60 (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 B29C 45/00 - 47/96 B60R 19/02 F16F 7/00 - 7/14 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI // B29L 31:60 B29L 31:60 (58) Fields surveyed (Int.Cl. 7 , DB name) B32B 1/00-35 / 00 B29C 45/00-47/96 B60R 19/02 F16F 7/00-7/14
Claims (7)
々が略々平板形状で互いに略々平行に延展している複数
の主板部と、各々が略々平板形状で隣り合う主板部どう
しを連結している複数の副板部とを備え、隣り合う一対
の主板部と隣り合う一対の副板部とでセル壁が画成され
た断面形状が略々四角形のセルが多数配列した構造を有
し、前記副板部の屈曲性を前記主板部の屈曲性より十分
に大きくしてあることを特徴とする樹脂製ハニカムコ
ア。1. A resin honeycomb core integrally formed of a flexible resin as a material, each of which has a substantially flat plate shape, and a plurality of main plate portions which extend substantially parallel to each other. A plurality of sub-plate portions that connect adjacent main plate portions in a substantially flat plate shape are provided, and a cross-sectional shape in which a cell wall is defined by a pair of adjacent main plate portions and a pair of adjacent sub-plate portions is A resin honeycomb core having a structure in which a large number of substantially rectangular cells are arranged, and the flexibility of the sub-plate portion is sufficiently larger than the flexibility of the main plate portion.
２分の１以下にすることによって、前記副板部の屈曲性
を前記主板部の屈曲性より十分に大きくしたことを特徴
とする請求項１記載の樹脂製ハニカムコア。2. The flexibility of the sub plate portion is made sufficiently larger than that of the main plate portion by setting the thickness of the sub plate portion to be half or less of the thickness of the main plate portion. The resin honeycomb core according to claim 1.
中央部に前記セルの延在方向に沿って延在する凹溝を形
成することによって、前記副板部の屈曲性を前記主板部
の屈曲性より十分に大きくしたことを特徴とする請求項
１または２記載の樹脂製ハニカムコア。3. The bendability of the sub plate portion is formed by forming a concave groove extending along the extending direction of the cell in a substantially central portion of a cell wall defining the sub plate portion. The resin honeycomb core according to claim 1 or 2, wherein the resin plate is made sufficiently larger than the flexibility of the main plate portion.
って一体成形したことを特徴とする請求項１、２、また
は３記載の樹脂製ハニカムコア。4. The resin honeycomb core according to claim 1, wherein the resin honeycomb core is made of a thermoplastic resin and integrally molded by extrusion molding.
って一体成形したことを特徴とする請求項１、２、また
は３記載の樹脂製ハニカムコア。5. The resin honeycomb core according to claim 1, wherein the resin honeycomb core is integrally formed by injection molding using a thermoplastic resin as a material.
て、 ハニカムコアの断面形状に対応した形状の吐出口を有す
る押出用金型を用意する工程と、 前記押出用金型を取付けた押出機から熱溶融した熱可塑
性樹脂を押出して冷却することによって長尺の多胞体を
成形する工程と、 前記長尺の多胞体を所要寸法に切断し、もって、各々が
略々平板形状で互いに略々平行に延展している複数の主
板部と、各々が略々平板形状で隣り合う主板部どうしを
連結している複数の副板部とを備え、隣り合う一対の主
板部と隣り合う一対の副板部とでセル壁が画成された断
面形状が略々四角形のセルが多数配列した構造を有し、
前記副板部の屈曲性を前記主板部の屈曲性より十分に大
きくした一体成形樹脂製ハニカムコアを得る工程と、を
含んでいることを特徴とする樹脂製ハニカムコアの製造
方法。6. A resin honeycomb core manufacturing method, the step of preparing an extrusion die having a discharge port having a shape corresponding to the cross-sectional shape of the honeycomb core, and heat from an extruder equipped with the extrusion die. A step of molding a long multicellular body by extruding and cooling the molten thermoplastic resin, and cutting the long multicellular body to a required size, so that each is approximately flat plate-shaped and substantially parallel to each other. A plurality of extending main plate portions and a plurality of sub-plate portions each having a substantially flat plate shape and connecting adjacent main plate portions, and a pair of sub-plate portions adjacent to each other And has a structure in which a large number of cells each having a substantially rectangular cross section in which the cell walls are defined by
And a step of obtaining an integrally molded resin honeycomb core in which the flexibility of the sub plate portion is sufficiently larger than the flexibility of the main plate portion.
て、 ハニカムコアの形状に対応した形状の成形品キャビティ
を有する射出成形用金型を用意する工程と、 前記射出成形用金型を取付けた射出成形機で、各々が略
々平板形状で互いに略々平行に延展している複数の主板
部と、各々が略々平板形状で隣り合う主板部どうしを連
結している複数の副板部とを備え、隣り合う一対の主板
部と隣り合う一対の副板部とでセル壁が画成された断面
形状が略々四角形のセルが多数配列した構造を有し、前
記副板部の屈曲性を前記主板部の屈曲性より十分に大き
くした樹脂製ハニカムコアを一体成形する工程と、を含
んでいることを特徴とする樹脂製ハニカムコアの製造方
法。7. A method of manufacturing a resin honeycomb core, the step of preparing an injection molding mold having a molded product cavity having a shape corresponding to the shape of the honeycomb core, and injection molding with the injection molding mold attached. The machine includes a plurality of main plate portions each having a substantially flat plate shape and extending substantially parallel to each other, and a plurality of sub plate portions each having a substantially flat plate shape and connecting adjacent main plate portions. The cross-sectional shape of the cell wall defined by a pair of adjacent main plate portions and a pair of adjacent sub-plate portions has a structure in which a large number of substantially square cells are arranged, and the flexibility of the sub-plate portion is And a step of integrally molding a resin honeycomb core sufficiently larger than the flexibility of the main plate portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28536794A JP3426745B2 (en) | 1994-11-18 | 1994-11-18 | Resin honeycomb core and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28536794A JP3426745B2 (en) | 1994-11-18 | 1994-11-18 | Resin honeycomb core and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08142237A JPH08142237A (en) | 1996-06-04 |
| JP3426745B2 true JP3426745B2 (en) | 2003-07-14 |
Family
ID=17690637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28536794A Expired - Fee Related JP3426745B2 (en) | 1994-11-18 | 1994-11-18 | Resin honeycomb core and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3426745B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4865907B1 (en) * | 2010-12-29 | 2012-02-01 | ジェイ・バス株式会社 | Honeycomb panel with combined honeycomb piece structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5238450B2 (en) * | 2008-10-21 | 2013-07-17 | 日東電工株式会社 | Reinforcing sheet |
| CN112278294A (en) * | 2020-10-30 | 2021-01-29 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Noise elimination structure of airplane nacelle |
| CN115783117A (en) * | 2022-11-21 | 2023-03-14 | 中国船舶集团有限公司第七0三研究所 | Composite material isolation and flushing device based on multi-cell chiral periodic structure |
-
1994
- 1994-11-18 JP JP28536794A patent/JP3426745B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4865907B1 (en) * | 2010-12-29 | 2012-02-01 | ジェイ・バス株式会社 | Honeycomb panel with combined honeycomb piece structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08142237A (en) | 1996-06-04 |
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