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JP2001208120A5 - - Google Patents

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Publication number
JP2001208120A5
JP2001208120A5 JP2000334479A JP2000334479A JP2001208120A5 JP 2001208120 A5 JP2001208120 A5 JP 2001208120A5 JP 2000334479 A JP2000334479 A JP 2000334479A JP 2000334479 A JP2000334479 A JP 2000334479A JP 2001208120 A5 JP2001208120 A5 JP 2001208120A5
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JP
Japan
Prior art keywords
energy absorbing
fiber
lattice
reinforced plastic
absorbing member
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Application number
JP2000334479A
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Japanese (ja)
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JP4491955B2 (en
JP2001208120A (en
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Priority to JP2000334479A priority Critical patent/JP4491955B2/en
Priority claimed from JP2000334479A external-priority patent/JP4491955B2/en
Publication of JP2001208120A publication Critical patent/JP2001208120A/en
Publication of JP2001208120A5 publication Critical patent/JP2001208120A5/ja
Application granted granted Critical
Publication of JP4491955B2 publication Critical patent/JP4491955B2/en
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Expired - Lifetime legal-status Critical Current

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Description

【特許請求の範囲】
【請求項】吸収部材の表面に、少なくとも3つの格子点から形成される格子形状平面を有するエネルギー吸収部を備えてなり、格子点の繊維含有率が、格子点以外の部位の繊維含有率と異なることを特徴とする繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】格子点の繊維含有率は、格子点以外の部位の繊維含有率よりも1.2〜3.0倍の範囲内で高い、請求項1に記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】3つの格子点で形成される格子形状平面の面積は、1〜1000cm2の範囲内にある、請求項1または2に記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】エネルギー吸収部の衝突方向の厚さは、0.1〜50mmの範囲内である、請求項1〜3のいずれかに記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】エネルギー吸収部は、格子点における高さ(t)と格子点の隣接辺の幅(L)との比(H/L)が、1/2以上のボード状のものである、請求項1〜4のいずれかに記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】格子内の一部またはすべてに、発泡フォームまたは発泡モルタルが充填されている、請求項1〜5のいずれかに記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】エネルギー吸収部の軸方向の上部、下部、または上下部に、有機または無機材料のボードを貼り合わせてなる、請求項1〜6のいずれかに記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項】強化繊維は、炭素繊維であって、その含有率が10〜70w%の範囲内である、請求項1〜7のいずれかに記載の繊維強化プラスチック製衝撃エネルギー撃吸収部材。
【請求項】エネルギー吸収部のボイド量は、2〜6vol%の範囲内である、請求項1〜8のいずれかに記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
【請求項10】エネルギー吸収量は、40J/g以上である、請求項1〜9のいずれかに記載の繊維強化プラスチック製衝撃エネルギー吸収部材。
[Claims]
On the surface of the 1. A absorbing member, it comprises an energy absorbing portion having a lattice shape plane formed from at least three lattice points, the fiber content of the grid points, the fiber content of a site other than the lattice points And a shock energy absorbing member made of fiber reinforced plastic.
2. A fiber content of grid points have high within content by the remote 1.2 to 3.0 times the fiber parts position other than the lattice points, fiber reinforced plastic according to claim 1 Impact energy absorbing material.
Area wherein three grid pattern plane formed by the grid points, Ru near the range of 1~1000Cm 2, fiber-reinforced plastic impact energy absorbing member according to claim 1 or 2.
4. A direction of collision energy absorbing portion thickness, Ru der range of 0.1 to 50 mm, fiber-reinforced plastic impact energy absorbing member according to claim 1.
5. The energy absorbing portion is a board-shaped one having a ratio (H / L) of a height (t) at a lattice point to a width (L) of an adjacent side of the lattice point is 1/2 or more. The impact energy absorbing member made of fiber reinforced plastic according to any one of claims 1 to 4 .
6. A portion of the lattice, or all, expanded foam or foam mortar that is filled, the fiber-reinforced plastic impact energy absorbing member according to any one of claims 1 to 5.
7. axial upper portion of the energy absorbing portion, the lower or the upper and lower portions, bonding a board of organic or inorganic materials ing, fiber-reinforced plastic impact according to claim 1, Energy absorbing member.
8. reinforcing fibers, a carbon fiber, the content of Ru der range of 10~70W%, fiber-reinforced plastic impact energy hammer absorbing member according to claim 1 .
Void of 9. The energy absorbing portion, Ru der range of 2~6Vol%, fiber-reinforced plastic impact energy absorbing member according to claim 1.
10. The energy absorption is Ru der 40 J / g or more, a fiber-reinforced plastic impact energy absorbing member according to any one of claims 1 to 9.

【0007】
【課題を解決するための手段】
上記課題を達成するために、本発明は以下の構成からなる。
[0007]
[Means for Solving the Problems]
To achieve the above object, the present invention provides the following configurations or Ranaru.

すなわち、吸収部材の表面に、少なくとも3つの格子点から形成される格子形状平面を有するエネルギー吸収部を備えてなり、格子点の繊維含有率が、格子点以外の部位の繊維含有率と異なる繊維強化プラスチック製衝撃エネルギー吸収部材である。 That is, the surface of the absorption member, it comprises an energy absorbing portion having a lattice shape plane formed from at least three lattice points, the fiber content of the lattice points is different from the fiber content of a site other than the lattice points It is an impact energy absorbing member made of fiber reinforced plastic.

上記繊維含有率が異なる部位としては、部材の形状にもよるが柱状体の断面において、厚みが変化する部分、すなわち、格子状の場合交差部と非交差部(図2参照)とが該当し、この部分で1.2倍から3.0倍の範囲内で異ならせるのが好ましい。吸収部材内に繊維を交差させる部位を設けることで、破壊が安定的に進行してエネルギー吸収量も大きくなる。具体的には、表面に少なくとも3つの格子点から形成される格子形状平面のエネルギー吸収部を設けることである。ここで、少なくとも3つの格子点を必要とする理由は、3つの格子点により一つの格子形状平面のエネルギー吸収部を備えたエネルギー吸収部材が形成されるからである。このような構成にすると、格子点の一つ一つが従来技術の柱状、円筒状などの衝撃吸収体と同様の衝撃エネルギー低減の作用効果を果たし、しかもそれぞれの格子における格子点は、マトリクス樹脂中の補強繊維が交差して積層構成をしているために、繊維含有率が他の部位より高くなり、その結果剛性が高くエネルギー吸収効率が高い作用効果を有する。また、それぞれのエネルギー吸収部における格子点は、立体的形状をしており、かつ複数存在するので、幅広い方向からの衝撃に対して衝撃エネルギーを効果的に吸収することができる。また、独立したもう一つの有効手段として、部材中に逐次破壊のトリガーとなるボイドを有することで、斜め方向からの衝撃に対しても良好にエネルギー吸収させることが可能となる。 The portions having different fiber contents correspond to portions where the thickness changes in the cross section of the columnar body depending on the shape of the member , that is, crossed portions and non-crossed portions (see FIG. 2) in a lattice shape. It is preferable that the difference be made within a range of 1.2 times to 3.0 times in this portion. By providing a portion where the fibers intersect in the absorbing member, the destruction proceeds stably and the amount of energy absorption increases. Specifically, it is to provide an energy absorbing portion in a lattice shape plane formed from at least three lattice points on the surface. Here, the reason why at least three lattice points are required is that the three lattice points form an energy absorbing member having an energy absorbing portion of one lattice shape plane. With such a configuration, each of the grid points has the same effect of reducing the impact energy as the conventional columnar and cylindrical shock absorbers, and the grid points in each grid are located in the matrix resin. Since the reinforcing fibers of (1) and (2) intersect to form a laminated structure, the fiber content is higher than that of other parts, and as a result, the rigidity is high and the energy absorption efficiency is high. In addition, since the lattice points in each energy absorbing portion have a three-dimensional shape and a plurality of lattice points, it is possible to effectively absorb impact energy with respect to impacts from a wide range of directions. In addition, as another independent effective means, by having a void in the member as a trigger for sequential destruction, energy can be favorably absorbed even in the event of an oblique impact.

図2〜図5は、いずれも本発明に係る衝撃エネルギー吸収部材の一実施例の斜視図であり、図2は外形が井桁状の格子点を有するエネルギー吸収部4を示しており、格子点6が4個の例である。これら格子点では補強繊維の量が他の部位より多く強度が不均一となっている。このため、斜め方向からの衝撃力に対して部材は全体破壊せず、逐次破壊して高いエネルギー吸収特性を呈する。すなわち、補強繊維の少ない箇所が破壊のトリガーとなり、補強繊維の多い箇所が逐次破壊してエネルギー吸収するというメカニズムを有する。本発明では、エネルギー吸収の高い後述の連続繊維を使用して部材を製造したいという観点から、格子点で補強繊維を交差させて格子点の繊維含有率を大きくすることを必要とする。 2 to 5 are perspective views of one embodiment of the impact energy absorbing member according to the present invention, and FIG. 6 is an example of four. At these lattice points, the amount of reinforcing fibers is greater than at other sites, and the strength is non-uniform. For this reason, the member is not entirely destroyed by the impact force from the oblique direction, but is sequentially destroyed, and exhibits high energy absorption characteristics. That is, there is a mechanism in which a portion having a small number of reinforcing fibers serves as a trigger for destruction, and a portion having a large number of reinforcing fibers is sequentially broken and energy is absorbed . In the present invention requires that the terms of desired to produce the member by using the continuous fibers described high energy absorption, crossed reinforcing fibers in lattice points to increase the fiber content of the lattice points.

JP2000334479A 1999-11-02 2000-11-01 Impact energy absorbing member made of fiber reinforced plastic Expired - Lifetime JP4491955B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000334479A JP4491955B2 (en) 1999-11-02 2000-11-01 Impact energy absorbing member made of fiber reinforced plastic

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP31219099 1999-11-02
JP11-312190 1999-11-02
JP2000334479A JP4491955B2 (en) 1999-11-02 2000-11-01 Impact energy absorbing member made of fiber reinforced plastic

Publications (3)

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JP2001208120A JP2001208120A (en) 2001-08-03
JP2001208120A5 true JP2001208120A5 (en) 2007-09-06
JP4491955B2 JP4491955B2 (en) 2010-06-30

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US7842378B2 (en) 2004-01-06 2010-11-30 Kabushiki Kaisha Toyota Jidoshokki Energy absorber and method for manufacturing the same
DE102004046240B3 (en) 2004-09-22 2006-01-12 Faurecia Innenraum Systeme Gmbh Shock absorber made of a fiber material, in particular for a motor vehicle door
JP5092444B2 (en) * 2007-02-21 2012-12-05 トヨタ自動車株式会社 Manufacturing method of fiber reinforced composite material
JP5240556B2 (en) * 2008-06-27 2013-07-17 東レ株式会社 Impact energy absorber
JP5298910B2 (en) 2009-02-10 2013-09-25 トヨタ自動車株式会社 Shock absorption structure
FR2967740B1 (en) * 2010-11-22 2012-12-28 Faurecia Bloc Avant DEVICE FOR ENERGY ABSORPTION WITH FIBERS BORNE IN A PLASTIC MATERIAL, AND FRONT PANEL ASSOCIATED
CN103009640B (en) * 2012-12-28 2014-08-06 东南大学 Mould for preparing space lattices made of fiber reinforced composite materials and application method of mould
WO2014200015A1 (en) * 2013-06-12 2014-12-18 本田技研工業株式会社 Fiber-reinforced resin member
EP3513958B1 (en) 2014-06-16 2024-09-25 SABIC Global Technologies B.V. Method of making a laminate
EP3224106B1 (en) * 2014-11-28 2020-07-08 HITACHI RAIL S.p.A. Rail vehicle, particularly a tram comprising a bumper
JP2020504691A (en) 2016-12-30 2020-02-13 サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ Hybrid structure and manufacturing method thereof
CN113040462B (en) 2019-12-27 2023-01-03 株式会社爱世克私 Sole and shoe
JP7396892B2 (en) * 2019-12-27 2023-12-12 株式会社アシックス soles and shoes
JP7411410B2 (en) * 2019-12-27 2024-01-11 株式会社アシックス Cushioning materials, soles and shoes

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JP2567400Y2 (en) * 1993-01-09 1998-04-02 サカエ理研工業株式会社 Energy absorbing plastic bumper
JPH11173356A (en) * 1997-12-11 1999-06-29 Toray Ind Inc Shock absorbing member made of aluminum/fiber reinforced resin
JP3656395B2 (en) * 1998-03-17 2005-06-08 株式会社豊田自動織機 3D fiber structure
JPH11351306A (en) * 1998-06-12 1999-12-24 Toyobo Co Ltd Resinous shock absorber and shock absorbing method using the same
JP3300670B2 (en) * 1998-09-10 2002-07-08 西川化成株式会社 Vehicle bumper and molding die thereof

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