JP6531971B2 - Panel member - Google Patents

Panel member Download PDF

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JP6531971B2
JP6531971B2 JP2014068111A JP2014068111A JP6531971B2 JP 6531971 B2 JP6531971 B2 JP 6531971B2 JP 2014068111 A JP2014068111 A JP 2014068111A JP 2014068111 A JP2014068111 A JP 2014068111A JP 6531971 B2 JP6531971 B2 JP 6531971B2
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layer member
panel member
base material
middle layer
stampable
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JP2015189092A (en
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宏樹 若林
宏樹 若林
舘山　勝
勝 舘山
橋本　貴史
貴史 橋本
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Toray Industries Inc
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Description

本発明は、面状のパネル部材に関し、とくに、高い強度、剛性と優れた生産性を有する、複数の層状部材を組み合わせたパネル部材に関する。   The present invention relates to a planar panel member, and more particularly to a panel member combining a plurality of layered members having high strength, rigidity and excellent productivity.

各種分野における面状のパネル部材の要求に対し、従来から、樹脂製のパネル部材が広く適用されており、とくに高い強度、剛性が要求される場合には、繊維強化樹脂製のパネル部材の使用が適していることが知られている。しかし、従来の繊維強化樹脂製の部材の多くは射出成形により成形されるため(例えば、特許文献１)、使用されている強化繊維の繊維長が比較的短く、例えば車両用のパネル部材として採用するには、強度、剛性が不足するおそれがある。   In response to the demand for planar panel members in various fields, conventionally, resin panel members have been widely applied, and particularly when high strength and rigidity are required, use of fiber reinforced resin panel members Is known to be suitable. However, since many conventional fiber reinforced resin members are molded by injection molding (for example, Patent Document 1), the fiber length of reinforcing fibers being used is relatively short, for example, adopted as a panel member for vehicles In order to achieve this, the strength and rigidity may be insufficient.

そこで、本発明者らは、上記のような強度、剛性の不足を解消するために、強化繊維の繊維長が比較的長く、成形品の高い強度、剛性を発現できる、スタンパブル基材の使用の検討を開始した。ただし、スタンパブル基材はプレス成形によって成形されるため、その成形においては面内流れが前提となる。しかし、スタンパブル基材を用いたプレス成形では、面状体の面に補強用リブを立てる等の成形（つまり、面外流れが要求される成形）は難しく、そのため、実質的に面状の構造にしか成形できず、形状的に高い剛性を発揮することが困難であった。したがって、スタンパブル基材を構成する繊維強化樹脂材料が本来もつ高い強度、剛性を有効に利用できていなかった。   Therefore, in order to eliminate the above-mentioned lack of strength and rigidity, the present inventors have used a stampable base material having a relatively long fiber length of reinforcing fiber and capable of expressing high strength and rigidity of a molded article. We started the examination. However, since the stampable base material is formed by press forming, in-plane flow is premised in the formation. However, in press molding using a stampable base material, it is difficult to form reinforcement ribs on the surface of a planar body (that is, molding requiring an out-of-plane flow), and therefore a substantially planar structure It was difficult to achieve high rigidity in shape. Therefore, the high strength and rigidity inherent in the fiber-reinforced resin material constituting the stampable base material can not be effectively utilized.

特開２０１２−９４４７６号公報JP 2012-94476 A

そこで本発明の課題は、上記のような現状に鑑み、スタンパブル基材が有する高い強度、剛性を発現可能な優れた特性に着目しつつ、プレス成形可能な形状と層状部材構造の組み合わせを適用することにより優れた生産性も実現可能な、各種分野に用いて好適なパネル部材を提供することにある。   Then, the subject of the present invention applies the combination of the shape which can be press-formed, and a layered member structure, paying attention to the outstanding characteristic which can express the high intensity and rigidity which stampable base material has in view of the above present conditions. An object of the present invention is to provide a panel member suitable for use in various fields, which can realize excellent productivity.

上記課題を解決するために、本発明に係るパネル部材は、面状のパネル部材であって、上面を形成する上層部材、下面を形成する下層部材、上層部材と下層部材の間に介在される中層部材の３種の部材、または、上面を形成する中層部材、下面を形成する下層部材の２種の部材の接合構造に構成され、前記上層部材、下層部材が、平坦面を有する面構造体からなり、前記中層部材が、連続的な凹凸形状を有する構造を面状基材からなるスタンパブル基材のプレス成形により形成した凹凸プレス構造体からなることを特徴とするものからなる。   In order to solve the above problems, the panel member according to the present invention is a planar panel member and is interposed between an upper layer member forming the upper surface, a lower layer member forming the lower surface, and the upper layer member and the lower layer member. A planar structure comprising a joining structure of three members of the middle layer member, or a middle layer member forming the upper surface and a lower layer member forming the lower surface, wherein the upper layer member and the lower layer member have flat surfaces It consists of a concavo-convex press structure which consists of a press formation of the structure which has the above-mentioned middle class member which has a continuous concavo-convex shape by press molding of a stampable base material which consists of a planar substrate.

このような本発明に係るパネル部材においては、複数の層状部材の積層接合構造に構成されるので、パネル部材を、構造的に、平坦面を有する外面を形成する上層部材、下層部材と、主として強度、剛性を担う中層部材とに、容易に機能を分離して構成することが可能になる。これらのうち中層部材は、連続的な凹凸形状を有する凹凸プレス構造体からなるので、構造的に高い強度、剛性を発現可能である。この高い強度、剛性を発現可能な連続的な凹凸形状を有する構造が、面状基材からなるスタンパブル基材のプレス成形により形成されるので、換言すれば、スタンパブル基材のプレス成形により形成可能な凹凸形状が中層部材の凹凸形状として採用され、スタンパブル基材のプレス成形では形成困難なリブ等の立設は不要とされるので、所望の形状への成形を問題なく容易に行うことが可能になり、優れた生産性が確保される。その結果、優れた生産性をもって製造可能で、高い強度、剛性を発現可能なパネル部材が実現される。   In such a panel member according to the present invention, since it is configured in a laminated bonding structure of a plurality of layer members, the panel member is mainly composed of an upper layer member and a lower layer member forming an outer surface having a flat surface. It is possible to easily separate the functions into an intermediate layer member that bears strength and rigidity. Among these, since the middle layer member is formed of a concavo-convex press structure having a continuous concavo-convex shape, it can express structurally high strength and rigidity. Since a structure having a continuous uneven shape capable of expressing high strength and rigidity is formed by press-forming a stampable base made of a planar base, in other words, it can be formed by press-forming a stampable base The concave and convex shape is adopted as the concave and convex shape of the middle layer member, and the erecting of a rib or the like which is difficult to form in press forming of the stampable base material is not necessary. To ensure excellent productivity. As a result, a panel member that can be manufactured with excellent productivity and can exhibit high strength and rigidity can be realized.

上記本発明に係るパネル部材においては、少なくとも上記中層部材が繊維強化樹脂からなることが好ましい。繊維強化樹脂は、軽量でありながら高い強度、剛性を発現可能な材料であるから、少なくとも中層部材を繊維強化樹脂から構成することにより、パネル部材全体の軽量化をはかりつつ、所望の強度、剛性を発現可能となる。   In the panel member according to the present invention, preferably, at least the middle layer member is made of a fiber reinforced resin. Since fiber reinforced resin is a material that is light in weight and capable of expressing high strength and rigidity, by configuring at least the middle layer member from fiber reinforced resin, desired strength and rigidity can be achieved while achieving weight reduction of the entire panel member. Can be expressed.

また、少なくとも上記中層部材が繊維強化樹脂からなる場合、該繊維強化樹脂を構成する強化繊維が、不連続に切断された強化繊維を混綿したマットからなる形態を採用することができる。このようなマットを含むことにより、中層部材成形用のスタンパブル基材をプレス成形する際、強化繊維の適切な分布状態を維持しつつ、強化繊維を樹脂とともに良好に流動させることが可能になり、プレス成形後の中層部材、ひいてはパネル部材全体の強度、剛性の均一化を促進することが可能になる。   Further, when at least the middle layer member is made of a fiber reinforced resin, it is possible to adopt a form in which reinforcing fibers constituting the fiber reinforced resin are made of a mat in which reinforcing fibers cut discontinuously are mixed. By including such a mat, when press-forming a stampable base material for forming an intermediate layer member, it becomes possible to flow the reinforcing fibers well with the resin while maintaining an appropriate distribution state of the reinforcing fibers, It becomes possible to promote the equalization of strength and rigidity of the middle layer member after press molding, and hence the entire panel member.

また、少なくとも上記中層部材が繊維強化樹脂からなる場合、該繊維強化樹脂を構成する強化繊維としては、炭素繊維やガラス繊維、アラミド繊維等、あるいはこれらの組み合わせを使用可能であるが、とくに高い強度、剛性を発現可能で、それらの特性の設計も行いやすい炭素繊維を含むことが好ましい。   In addition, when at least the middle layer member is made of fiber reinforced resin, carbon fiber, glass fiber, aramid fiber, etc., or a combination thereof can be used as a reinforcing fiber constituting the fiber reinforced resin, but particularly high strength It is preferable to include carbon fibers that can exhibit rigidity and that are easy to design their characteristics.

また、本発明に係るパネル部材において、上記スタンパブル基材としては、プレス成形により上述したような凹凸プレス構造体からなる中層部材を形成可能なスタンパブル基材であれば特に限定されないが、成形の容易性等の観点から、熱可塑性樹脂と強化繊維で構成されたスタンパブル基材からなることが好ましい。   Further, in the panel member according to the present invention, the stampable substrate is not particularly limited as long as it is a stampable substrate capable of forming an intermediate layer member composed of a concavo-convex press structure as described above by press molding. From the viewpoint of properties and the like, it is preferable to be made of a stampable base material composed of a thermoplastic resin and reinforcing fibers.

また、上記中層部材を構成する凹凸プレス構造体としては、凹凸形状が縦横両方向に連接された構造、または、凹凸形状が縦横のいずれか一方向に連接された構造のいずれの形態も採り得る。さらに、面状基材からなるスタンパブル基材のプレス成形により形成可能な連続的な凹凸形状であれば、任意の凹凸形状を採り得る。   Moreover, as a concavo-convex press structure which constitutes the above-mentioned middle layer member, any form of a structure in which concavo-convex shape is connected in both vertical and horizontal directions or a structure in which concavo-convex shape is connected in either vertical or horizontal direction can be adopted. Furthermore, as long as it is a continuous concavo-convex shape that can be formed by press molding of a stampable substrate made of a planar substrate, any concavo-convex shape can be adopted.

また、本発明に係るパネル部材においては、上記中層部材は、１層のみ設けることもできるし、複数層設けることもできる。上記の如く中層部材を構成する凹凸プレス構造体の凹凸形状が縦横両方向に連接された構造の場合には、１層のみの中層部材であっても、縦横両方向に高い強度、剛性を発現可能である。また、中層部材を構成する凹凸プレス構造体の凹凸形状が縦横のいずれか一方向に連接された構造の場合には、凹凸形状が異なる方向となるように２層以上の中層部材の積層構成とすることにより、異なる方向のすべてについて高い強度、剛性を発現可能となる。ここで後者のような形態の場合では、前者の場合に比べ、各中層部材のプレス成形の容易化をはかることが可能である。   In the panel member according to the present invention, the middle layer member may be provided only in one layer or in plural layers. As described above, in the case where the concavo-convex shape of the concavo-convex press structure constituting the middle layer member is connected in both the vertical and horizontal directions, high strength and rigidity can be exhibited in both the vertical and horizontal directions even with only one layer. is there. Further, in the case of a structure in which the concavo-convex shape of the concavo-convex press structure constituting the middle layer member is continuous in one of the vertical and horizontal directions, the lamination structure of two or more middle layer members is made so that the concavo-convex shape becomes different. By doing this, it is possible to develop high strength and rigidity in all of the different directions. Here, in the case of the latter mode, it is possible to facilitate the press forming of each intermediate layer member as compared with the former case.

また、本発明に係るパネル部材においては、上記上層部材および下層部材についても、上記のようなスタンパブル基材をプレス成形した部材から構成することができる。上層部材や下層部材は、少なくとも一部に平坦面を有する面構造体からなるが、上層部材や下層部材の周縁部まで考慮すると、必ずしも、全体にわたって平坦面を有する面構造体に構成されるとは限らない。したがって、そのような場合においても、スタンパブル基材をプレス成形した部材から上層部材や下層部材を構成すると、上層部材や下層部材の成形まで容易化され、パネル部材全体としての生産性が大幅に高められる。   Further, in the panel member according to the present invention, the upper layer member and the lower layer member can also be constituted by members obtained by press forming the above-described stampable base material. The upper layer member and the lower layer member are formed of a planar structure having a flat surface at least in part, but in consideration of the peripheral portions of the upper layer member and the lower layer member, they are necessarily configured as a planar structure having a flat surface over the whole. There is no limit. Therefore, even in such a case, when the upper layer member and the lower layer member are configured from the member obtained by press-forming the stampable base material, the formation of the upper layer member and the lower layer member is facilitated, and the productivity as the entire panel member is greatly enhanced. Be

また、本発明において、上記スタンパブル基材としては、等方性の物性(例えば、等方性の機械特性)を示す基材からなることが好ましい。このようなスタンパブル基材を用いて上記中層部材を形成すれば、さらには、このようなスタンパブル基材を用いて上記上層部材および下層部材も形成すれば、パネル部材全体の強度、剛性の均一化を一層促進することが可能になる。   Further, in the present invention, the stampable substrate is preferably made of a substrate exhibiting isotropic physical properties (for example, isotropic mechanical properties). If the middle layer member is formed using such a stampable base material, and if the upper layer member and the lower layer member are also formed using such a stampable base material, then the strength and rigidity of the entire panel member are uniformed. It is possible to further promote

また、上記スタンパブル基材を、シート状基材を複数枚積層した積層体として構成すれば、該スタンパブル基材を用いて形成する中層部材、さらには上層部材および下層部材の物性を所望の物性により容易に制御しやすくなり、ひいては、パネル部材全体の物性を所望の物性に一層容易に制御しやすくなる。このような積層体を構成するためのシート状基材を用いる場合にも、該シート状基材としては、等方性の物性を示す基材からなることが好ましい。このようなシート状基材を用いて上記積層体からなるスタンパブル基材を構成すれば、そのスタンパブル基材を用いて形成される上記中層部材、さらには上記上層部材および下層部材の強度、剛性の均一化を一層促進することが可能になり、ひいては、パネル部材全体の強度、剛性の均一化を一層促進することが可能になる。   In addition, when the stampable base material is configured as a laminated body in which a plurality of sheet-like base materials are laminated, the physical properties of the middle layer member, and the upper layer member and the lower layer member formed using the stampable base material are desired. It becomes easy to control easily, and it becomes easier to control the physical property of the whole panel member to a desired physical property by extension. Even when using a sheet-like base material for constituting such a laminate, the sheet-like base material is preferably made of a base material that exhibits isotropic physical properties. If a stampable base made of the above laminate is constructed using such a sheet-like base, the strength and rigidity of the middle layer member, further, the upper layer member and the lower layer member, which are formed using the stampable base material It becomes possible to further promote the equalization, and in turn, it is possible to further promote the equalization of strength and rigidity of the whole panel member.

このような本発明に係るパネル部材は、実質的にあらゆる用途に適用可能であり、とくに、軽量化や高強度化，高剛性化の要求の強い車両用パネル部材として好適なものである。   Such a panel member according to the present invention is applicable to virtually all applications, and is particularly suitable as a vehicle panel member that is strongly required to be reduced in weight, in strength, and in rigidity.

このように、本発明に係るパネル部材によれば、軽量化等をはかりつつ、スタンパブル基材のプレス成形により形成できる凹凸プレス構造体からなる中層部材を設けることにより、高い強度、剛性を発現可能なパネル部材を実現でき、しかもそのパネル部材を優れた生産性をもって製造することができる。   As described above, according to the panel member of the present invention, high strength and rigidity can be exhibited by providing the middle layer member composed of the concavo-convex press structure which can be formed by press forming of the stampable base while reducing the weight and the like. Can be realized, and the panel member can be manufactured with excellent productivity.

とくに大量生産が要求される用途に対しても、確実にかつ容易に要求に応えることができるようになる。   In particular, for applications requiring mass production, the requirements can be met with certainty and ease.

本発明の一実施態様に係るパネル部材を適用した車両の概略構成図である。It is a schematic block diagram of the vehicle to which the panel member concerning one embodiment of the present invention is applied. 本発明の一実施態様に係るパネル部材の分解斜視図（Ａ）および組立後の斜視図（Ｂ）である。It is an exploded perspective view (A) and a perspective view (B) after assembling of a panel member concerning one embodiment of the present invention. 本発明の別の実施態様に係るパネル部材の分解斜視図（Ａ）および組立後の斜視図（Ｂ）である。It is an exploded perspective view (A) and a perspective view (B) after assembling of a panel member concerning another embodiment of the present invention. 本発明のさらに別の実施態様に係るパネル部材の分解斜視図（Ａ）および組立後の斜視図（Ｂ）である。It is an exploded perspective view (A) and a perspective view (B) after an assembly concerning a panel member concerning another embodiment of the present invention. 本発明の一実施態様に係るパネル部材への入力荷重の例を示す概略構成図である。It is a schematic block diagram which shows the example of the input load to the panel member which concerns on one embodiment of this invention.

以下に、本発明の実施の形態について、図面を参照しながら説明する。
図１は、本発明に係るパネル部材の適用例を示しており、本例では、車両１の車体下部に設けられるパネル部材２が例示されている。このようなパネル部材２は、例えば図２〜図４に示すように構成される。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an application example of a panel member according to the present invention, and in this example, a panel member 2 provided in the lower part of a vehicle body of a vehicle 1 is illustrated. Such a panel member 2 is configured, for example, as shown in FIGS.

図２にパネル部材の分解斜視図（Ａ）および組立後の斜視図（Ｂ）として示す実施態様においては、面状のパネル部材３は、上面を形成する上層部材４、下面を形成する下層部材５、上層部材４と下層部材５の間に介在される中層部材６の３種の部材の積層、接合構造に構成されている。上層部材４と下層部材５は、平坦面７、８を有する面構造体から構成されている。中層部材６は、連続的な凹凸形状を有する構造を面状基材からなるスタンパブル基材（シート状のスタンパブル基材）のプレス成形により形成した凹凸プレス構造体９から構成されており、本実施態様においては、凹凸プレス構造体９が、凹凸形状が縦横両方向に連接された構造に構成されている。各凹凸形状部分は、ハット形の断面形状を有している。また、本実施態様においては、中層部材６と、上層部材４および下層部材５は、すべて、炭素繊維を含む繊維強化樹脂からなり、上層部材４および下層部材５もスタンパブル基材のプレス成形により形成されている。強化繊維としての炭素繊維は、不連続に切断された炭素繊維を混綿したマットに構成されており、繊維長は例えば１〜５０ｍｍの範囲と、スタンパブル基材の段階にて、従来の射出成形品における繊維長よりも長く設定されている。   In the embodiment shown in FIG. 2 as an exploded perspective view (A) of the panel member and a perspective view (B) after assembly, the planar panel member 3 is the upper layer member 4 forming the upper surface and the lower layer member forming the lower surface. A laminated structure of three kinds of members of the middle layer member 6 interposed between the upper layer member 4 and the lower layer member 5 is formed. The upper layer member 4 and the lower layer member 5 are formed of a planar structure having flat surfaces 7 and 8. The middle layer member 6 is composed of a concavo-convex press structure 9 formed by press forming a stampable substrate (a sheet-like stampable substrate) made of a planar substrate and having a structure having a continuous concavo-convex shape. In the aspect, the concavo-convex press structure 9 is configured in a structure in which the concavo-convex shape is connected in both the longitudinal and lateral directions. Each uneven portion has a hat-shaped cross-sectional shape. Further, in the present embodiment, the middle layer member 6, the upper layer member 4 and the lower layer member 5 are all made of a fiber reinforced resin containing carbon fiber, and the upper layer member 4 and the lower layer member 5 are also formed by press forming the stampable base material. It is done. Carbon fibers as reinforcing fibers are constituted by a mat in which discontinuously cut carbon fibers are mixed, and the fiber length is, for example, in the range of 1 to 50 mm and at the stage of stampable base material, a conventional injection molded article It is set longer than the fiber length in.

このようなパネル部材３においては、平坦面７、８を有する上層部材４と下層部材５により、周囲や載置部品に対して所望の外面が形成され、それらの間に介在された凹凸プレス構造体９からなる中層部材６により主として、パネル部材３に求められる強度、剛性が発現される。したがって、パネル部材３として必要な外面形状と強度、剛性の両方がこれら部材の積層構成によって満たされる。また、本実施態様では、中層部材６、上層部材４および下層部材５は、すべて、炭素繊維を含む繊維強化樹脂から構成されているので、パネル部材３全体としての強度、剛性が高く確保されつつ軽量性も確保される。そして、構造的に高い強度、剛性を発現する中層部材６は、全体として面状の形状を保ったままハット形断面形状部が連接された凹凸プレス構造体９に形成されるので、リブ等を立設する必要はなく、シート状の面状基材からなるスタンパブル基材を材料として使用し、それをプレス成形することによって問題なく容易に形成される。換言すれば、スタンパブル基材のプレス成形により問題なく形成され得る凹凸形状の構造体として成形されている。したがって、優れた生産性が確保されつつ、高い強度、剛性を発現可能なパネル部材３が実現される。   In such a panel member 3, the upper surface member 4 having the flat surfaces 7 and 8 and the lower surface member 5 form a desired outer surface with respect to the periphery and the mounting part, and the concavo-convex press structure interposed therebetween The strength and rigidity required for the panel member 3 are mainly expressed by the middle layer member 6 composed of the body 9. Therefore, both the outer surface shape, strength, and rigidity necessary for the panel member 3 are satisfied by the laminated configuration of these members. Further, in the present embodiment, since all of the middle layer member 6, the upper layer member 4 and the lower layer member 5 are made of a fiber reinforced resin containing carbon fibers, the strength and rigidity of the panel member 3 as a whole are secured high. Lightweight is also secured. And since the middle layer member 6 which expresses structurally high strength and rigidity is formed in the concavo-convex press structure 9 in which the hat-shaped cross-sectional shape part is connected while maintaining the planar shape as a whole, It is not necessary to set up, and it can be easily formed without problems by using a stampable base made of a sheet-like planar base as a material and pressing it. In other words, it is formed as a concavo-convex structure that can be formed without problems by press molding of the stampable base material. Therefore, the panel member 3 which can express high strength and rigidity is realized while securing excellent productivity.

そして前述したように、上記スタンパブル基材として、等方性の物性を示す基材を用いて上記中層部材６、さらには、上記上層部材４および下層部材５を形成すれば、パネル部材３全体の強度、剛性の均一化を促進することが可能である。また、スタンパブル基材として、シート状基材を複数枚積層した積層体を用いれば、上記中層部材６、さらには、上記上層部材４および下層部材５を所望の物性に容易に制御しやすくなり、ひいては、パネル部材３全体の物性を所望の物性に容易に制御しやすくなる。さらに、このような積層体を構成するためのシート状基材として等方性の物性を示す基材を用いれば、そのスタンパブル基材を用いて形成される上記中層部材６、さらには上記上層部材４および下層部材５の強度、剛性の均一化を一層促進することが可能になり、ひいては、パネル部材３全体の強度、剛性の均一化を一層促進することが可能になる。   As described above, when the middle layer member 6, and further, the upper layer member 4 and the lower layer member 5 are formed using a base material exhibiting isotropic physical properties as the stampable base material, the entire panel member 3 can be obtained. It is possible to promote equalization of strength and rigidity. In addition, if a laminated body in which a plurality of sheet-like substrates are laminated is used as the stampable substrate, the middle layer member 6, and further, the upper layer member 4 and the lower layer member 5 can be easily controlled to desired physical properties. As a result, physical properties of the entire panel member 3 can be easily controlled to desired physical properties. Furthermore, if a base material exhibiting isotropic physical properties is used as a sheet-like base material for forming such a laminate, the middle layer member 6 formed using the stampable base material, and further, the upper layer member It becomes possible to further promote the equalization of strength and rigidity of the lower layer member 5 and the lower layer member 5 and, in turn, it is possible to further promote the equalization of strength and rigidity of the entire panel member 3.

図３は、本発明の別の実施態様に係るパネル部材１１を、パネル部材の分解斜視図（Ａ）および組立後の斜視図（Ｂ）として示している。本実施態様においては、中層部材は、凹凸形状が縦横のいずれか一方向に連接された構造を有する凹凸プレス構造体１４、１５に形成された２枚の中層部材１２、１３からなる。中層部材１２、１３を構成する凹凸プレス構造体１４、１５の凸条および凹条の延在方向は、互いに交差、とくに直交する方向に設定されている。その他の構成は図２に示した実施態様に準じるので、図２で付したのと同一の符号を付すことにより説明を省略する。   FIG. 3 shows a panel member 11 according to another embodiment of the present invention as an exploded perspective view (A) of the panel member and a perspective view (B) after assembly. In the present embodiment, the middle layer member is composed of two middle layer members 12 and 13 formed on the concavo-convex press structures 14 and 15 having a structure in which the concavo-convex shape is connected in any one of vertical and horizontal directions. The extending directions of the ridges and grooves of the concavo-convex press structures 14 and 15 constituting the middle layer members 12 and 13 are set to intersect, in particular, to be orthogonal to each other. The other configuration conforms to the embodiment shown in FIG. 2, and thus the description will be omitted by giving the same reference numerals as in FIG.

このような構成においても、シート状の面状基材からなるスタンパブル基材を材料として使用し、それをプレス成形することによって、凹凸プレス構造体１４、１５からなる中層部材１２、１３がそれぞれ問題なく容易に成形される。本実施態様においては、各凹凸プレス構造体１４、１５は、それぞれ、凹凸形状が一方向に連接された構造に形成されればよいので、ハット形断面構造の図２に示した形態よりも成形は一層容易化されている。そして、２枚の凹凸プレス構造体１４、１５からなる中層部材１２、１３を、凹凸延在方向が異なる方向となるように積層することで、図２に示した形態と同様の強度、剛性を発現可能となっている。その他の作用、効果は図２に示した実施態様に準じる。   Even in such a configuration, by using a stampable base material made of a sheet-like planar base material as a material and pressing it, the middle layer members 12 and 13 consisting of the concavo-convex press structures 14 and 15 have problems. Are easily molded. In the present embodiment, since each of the concavo-convex press structures 14 and 15 may be formed in a structure in which the concavo-convex shape is connected in one direction, it is molded more than the form shown in FIG. Is made easier. Then, by laminating the middle layer members 12 and 13 consisting of the two concavo-convex press structures 14 and 15 so that the concavo-convex extending directions are different from each other, the same strength and rigidity as the embodiment shown in FIG. It can be expressed. Other actions and effects are in accordance with the embodiment shown in FIG.

図４は、本発明のさらに別の実施態様に係るパネル部材２１を、パネル部材の分解斜視図（Ａ）および組立後の斜視図（Ｂ）として示している。本実施態様においては、上層部材は設けられず、図２に示したのと同等の下層部材５と中層部材６の２種の部材の積層、接合構造に構成されている。上面に凹凸構造が露出していてもよい場合には、このような２層構造のパネル部材２１とすることが可能である。その他の構成は図２に示した実施態様に準じるので、図２で付したのと同一の符号を付すことにより説明を省略する。   FIG. 4 shows a panel member 21 according to still another embodiment of the present invention as an exploded perspective view (A) of the panel member and a perspective view (B) after assembly. In the present embodiment, the upper layer member is not provided, and the lower layer member 5 and the middle layer member 6 equivalent to those shown in FIG. When the concavo-convex structure may be exposed on the upper surface, it is possible to use such a panel member 21 having a two-layer structure. The other configuration conforms to the embodiment shown in FIG. 2, and thus the description will be omitted by giving the same reference numerals as in FIG.

このような構成においても、凹凸プレス構造体９からなる中層部材６により、主としてパネル部材２１に求められる強度、剛性が発現されるので、図２に示したパネル部材３と同等の高い強度、剛性が得られる。その他の作用、効果は図２に示した実施態様に準じる。   Even in such a configuration, the strength and rigidity required for the panel member 21 are mainly expressed by the middle layer member 6 formed of the concavo-convex press structure 9, so high strength and rigidity equivalent to the panel member 3 shown in FIG. Is obtained. Other actions and effects are in accordance with the embodiment shown in FIG.

上記のような種々の形態に構成可能な本発明に係るパネル部材においては、例えば図５に示すような外部からの荷重に対して高い強度、剛性を発現できる。図５では、上記各実施態様のうち、図２に示したパネル部材３について例示するが、図３、図４に示した実施態様に係るパネル部材１１、２１でも同様に高い強度、剛性を発現できる。図５において、パネル部材３は、前方からの荷重３１(例えば、車両における前突荷重)や側方からの荷重３２(例えば、車両における側突荷重)、さらには曲げ荷重３３に対して、高い強度、剛性を発現できる。   The panel member according to the present invention, which can be configured in various forms as described above, can exhibit high strength and rigidity against external loads as shown in FIG. 5, for example. Although FIG. 5 exemplifies the panel member 3 shown in FIG. 2 among the above respective embodiments, the panel members 11 and 21 according to the embodiments shown in FIGS. 3 and 4 similarly exhibit high strength and rigidity. it can. In FIG. 5, the panel member 3 is high with respect to the load 31 from the front (for example, front collision load in the vehicle), the load 32 from the side (for example, side collision load in the vehicle), and the bending load 33. It can express strength and rigidity.

本発明に係るパネル部材は、あらゆる分野に適用可能であり、生産性に優れていることから、とくに大量生産が求められる分野のパネル部材(例えば、車両用パネル部材)として好適なものである。   The panel member according to the present invention is applicable to all fields, and is excellent in productivity, and is particularly suitable as a panel member (for example, a panel member for a vehicle) in a field where mass production is required.

１ 車両
２、３、１１、２１ パネル部材
４ 上層部材
５ 下層部材
６、１２、１３ 中層部材
７、８ 平坦面
９、１４、１５ 凹凸プレス構造体
３１ 前方からの荷重
３２ 側方からの荷重
３３ 曲げ荷重 1 vehicle 2, 3, 11, 21 panel member 4 upper layer member 5 lower layer member 6, 12, 13 middle layer member 7, 8 flat surface 9, 14, 15 uneven press structure 31 load from the front 32 load from the side 33 Bending load

Claims (10)

面状のパネル部材であって、上面を形成する上層部材、下面を形成する下層部材、上層部材と下層部材の間に介在される中層部材の３種の部材の接合構造に構成され、前記上層部材および下層部材が、スタンパブル基材をプレス成形した平坦面を有する面構造体からなり、前記中層部材が、連続的な凹凸形状を有し該凹凸形状が縦横両方向に連接された構造を面状基材からなるスタンパブル基材のプレス成形により形成した凹凸プレス構造体からなり、前記凹凸プレス構造体の連続的な凹凸形状が、非貫通の四角錐台の形状部分が縦横両方向に配列された形状に形成されていることを特徴とするパネル部材。 The upper layer member is a planar panel member, the upper layer member forming the upper surface, the lower layer member forming the lower surface, and the joining structure of three members of the middle layer member interposed between the upper layer member and the lower layer member, The lower layer member is a planar structure having a flat surface obtained by press-forming a stampable base material, and the middle layer member has a continuous uneven shape and a structure in which the uneven shape is connected in both vertical and horizontal directions. Ri Do concavo-convex press structure formed by press molding the stampable substrate comprising a substrate, a continuous concave-convex shape of the concave-convex press structure, truncated pyramid shape portion of the non-through are arranged in both the longitudinal and transverse directions A panel member characterized in that it is formed in a shape . 少なくとも前記中層部材が繊維強化樹脂からなる、請求項１に記載のパネル部材。   The panel member according to claim 1, wherein at least the middle layer member is made of fiber reinforced resin. 少なくとも前記中層部材が繊維強化樹脂からなり、該繊維強化樹脂を構成する強化繊維が、不連続に切断された強化繊維を混綿したマットからなる、請求項１または２に記載のパネル部材。   The panel member according to claim 1 or 2, wherein at least the middle layer member is made of a fiber reinforced resin, and the reinforcing fibers constituting the fiber reinforced resin are made of a mat in which reinforcing fibers cut discontinuously are blended. 少なくとも前記中層部材が繊維強化樹脂からなり、該繊維強化樹脂を構成する強化繊維として炭素繊維を含む、請求項１〜３のいずれかに記載のパネル部材。   The panel member according to any one of claims 1 to 3, wherein at least the middle layer member is made of a fiber reinforced resin, and carbon fibers are contained as reinforcing fibers constituting the fiber reinforced resin. 前記スタンパブル基材が、熱可塑性樹脂と強化繊維で構成された基材からなる、請求項１〜４のいずれかに記載のパネル部材。   The panel member according to any one of claims 1 to 4, wherein the stampable base material comprises a base material composed of a thermoplastic resin and a reinforcing fiber. 前記中層部材が、１層のみ、または、複数層設けられている、請求項１〜５のいずれかに記載のパネル部材。 The panel member according to any one of claims 1 to 5 , wherein the middle layer member is provided only in one layer or in a plurality of layers. 前記スタンパブル基材が、等方性の物性を示す基材からなる、請求項１〜６のいずれかに記載のパネル部材。 The panel member according to any one of claims 1 to 6 , wherein the stampable base material is a base material exhibiting isotropic physical properties. 前記スタンパブル基材が、シート状基材を複数枚積層した積層体からなる、請求項１〜７のいずれかに記載のパネル部材。 The panel member according to any one of claims 1 to 7 , wherein the stampable base material is a laminate in which a plurality of sheet-like base materials are laminated. 前記シート状基材が、等方性の物性を示す基材からなる、請求項８に記載のパネル部材。 The panel member according to claim 8 , wherein the sheet-like base material comprises a base material exhibiting isotropic physical properties. 車両用パネル部材からなる、請求項１〜９のいずれかに記載のパネル部材。 Consisting vehicle panel member, the panel member according to any one of claims 1-9.
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