JP2831710B2 - Helmet made of fiber reinforced resin - Google Patents
Helmet made of fiber reinforced resinInfo
- Publication number
- JP2831710B2 JP2831710B2 JP1203134A JP20313489A JP2831710B2 JP 2831710 B2 JP2831710 B2 JP 2831710B2 JP 1203134 A JP1203134 A JP 1203134A JP 20313489 A JP20313489 A JP 20313489A JP 2831710 B2 JP2831710 B2 JP 2831710B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- fiber
- helmet
- strength
- glass fiber
- 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 - Lifetime
Links
- 239000000835 fiber Substances 0.000 title claims description 47
- 229920005989 resin Polymers 0.000 title claims description 16
- 239000011347 resin Substances 0.000 title claims description 16
- 239000004744 fabric Substances 0.000 claims description 31
- 239000003365 glass fiber Substances 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 230000035939 shock Effects 0.000 claims description 15
- 229920001187 thermosetting polymer Polymers 0.000 claims description 9
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 46
- 239000004698 Polyethylene Substances 0.000 description 14
- 230000035515 penetration Effects 0.000 description 12
- 239000002759 woven fabric Substances 0.000 description 8
- 229920002978 Vinylon Polymers 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000009966 trimming Methods 0.000 description 5
- 229920006231 aramid fiber Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012783 reinforcing fiber Substances 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 2
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 2
- 229920000271 Kevlar® Polymers 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000004761 kevlar Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007589 penetration resistance test Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/06—Impact-absorbing shells, e.g. of crash helmets
- A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
- A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
Landscapes
- Helmets And Other Head Coverings (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、人体の頭部に与えられる衝撃を緩和して傷
害から保護するヘルメットに関し、特に耐貫通性及び衝
撃吸収性が優れ、軽量且つ安価で優れた防護性能を発揮
する繊維強化樹脂製のヘルメットに関するものである。Description: TECHNICAL FIELD The present invention relates to a helmet that reduces impact given to a human head and protects it from injury, and in particular, has excellent penetration resistance and shock absorption, is lightweight, The present invention relates to a helmet made of fiber-reinforced resin which is inexpensive and exhibits excellent protection performance.
［従来の技術］ 安全ヘルメット、殊に単車用ヘルメットとしてはガラ
ス繊維強化熱硬化性樹脂製（以下、GFRP製という）のも
のが汎用されているが、最近、ライダー装備のファッシ
ョン化が進むにつれて単車用ヘルメットも高級化してき
ており、且つ安全性向上の期待もあって徐々に大型化す
る傾向が見られる。ところがGFRPは比較的高重量である
ため大型化には限界がある。そこで軽量化を目的として
高強力，高弾性率のアラミド繊維及び汎用有機繊維（ビ
ニロン繊維等）等を強化材として併用し、ガラス繊維の
使用量を少なくすることにより軽量大型化を図ったFRP
製ヘルメットが既に市販されている。[Prior art] As a safety helmet, especially a helmet for a motorcycle, a helmet made of glass fiber reinforced thermosetting resin (hereinafter, referred to as GFRP) is widely used. Helmets have also been upgraded, and there is a tendency to gradually increase in size due to expectations for improved safety. However, since GFRP is relatively heavy, there is a limit to its size. Therefore, for the purpose of weight reduction, high strength and high elasticity aramid fiber and general-purpose organic fiber (vinylon fiber etc.) are used together as a reinforcing material, and the amount of glass fiber used is reduced to reduce the weight and size of the FRP.
Helmets are already on the market.
［発明が解決しようとする課題］ ところがアラミド繊維等の高弾性率繊維はビニロン繊
維の如き汎用の有機繊維に比べて非常に高価であり、し
かも有機繊維の中では比重が大きい方であるため、軽量
化には自ずと限界がある。加えてアラミド繊維のカット
性は非常に悪いので、ヘルメット製造時のトリミングあ
るいは打抜き作業性が悪いという問題もあり、強化材と
しての使用量は著しく制限される。そのため満足のいく
耐貫通性や衝撃吸収性を得るには、強化効果の劣るビニ
ロン繊維等を多量併用せざるを得ず、結果的にヘルメッ
ト構成材はかなり厚肉となって軽量化の目的も果たせな
くなる。[Problems to be Solved by the Invention] However, high modulus fibers such as aramid fibers are very expensive compared to general-purpose organic fibers such as vinylon fibers, and have a higher specific gravity among organic fibers. There is naturally a limit to weight reduction. In addition, since the cutting properties of aramid fibers are very poor, there is a problem that the trimming or punching workability during helmet manufacturing is poor, and the amount of the reinforcing material used is extremely limited. Therefore, in order to obtain satisfactory penetration resistance and shock absorption, it is necessary to use a large amount of vinylon fiber etc. with inferior reinforcing effect, and as a result, the helmet constituent material becomes considerably thicker and the purpose of weight reduction is also I can't do it.
本発明はこの様な事情に着目してなされたものであっ
て、その目的は、優れた耐貫通性及び衝撃吸収性を有し
且つ軽量、大型でしかも安価なヘルメットを提供しよう
とするものである。The present invention has been made in view of such circumstances, and an object thereof is to provide a lightweight, large, and inexpensive helmet having excellent penetration resistance and shock absorbing properties. is there.
［課題を解決するための手段］ 上記課題を解決することのできた本発明ヘルメットの
構成は、ガラス繊維層及び有機繊維布帛層を有する繊維
強化熱硬化性樹脂を主たる構成成分とするヘルメットに
おいて、該ヘルメットにおける少なくともJIS T 8133
（1982）で規定される衝撃吸収性試験の試験実施範囲
は、外層にガラス繊維層、中層に汎用有機繊維布帛層、
内層にガラス繊維層を積層して構成され、且つ上記外層
と中層間及び中層と内層間の少なくともいずれかの層間
に、高強力，高弾性率ポリエチレン繊維布帛が配設され
ているところに要旨を有するものである。[Means for Solving the Problems] The configuration of the helmet of the present invention that can solve the above-mentioned problems includes a helmet mainly composed of a fiber-reinforced thermosetting resin having a glass fiber layer and an organic fiber fabric layer. At least JIS T 8133 for helmets
The test execution range of the impact absorption test specified in (1982) is as follows: the outer layer is a glass fiber layer, the middle layer is a general-purpose organic fiber fabric layer,
The gist is that a glass fiber layer is laminated on an inner layer, and a high-strength, high-modulus polyethylene fiber fabric is disposed between at least one of the outer layer and the middle layer and / or the middle layer and the inner layer. Have
［作用］ 上記の様に本発明のヘルメットは、ガラス繊維層と有
機繊維布帛層を主たる構成々分としてヘルメット本体を
構成し、該ヘルメットにおいて最も優れた衝撃吸収性及
び耐貫通性が要求される領域、即ち少なくともJIS T 81
33（1982）で規定される衝撃吸収性試験の試験実施範囲
（以下、JIS規格範囲という）を、外層にガラス繊維
層、中層に汎用有機繊維布帛層、内層にガラス繊維層を
積層して構成すると共に、上記外層と中層間及び中層と
内層間の少なくともいずれかの層間に高強力・高弾性率
ポリエチレン繊維布帛を配設して強化したものであり、
これら各構成材の積層効果と上記高強力・高弾性率ポリ
エチレン繊維布帛の強化効果により衝撃吸収性及び耐貫
通性は著しく改善され、比較的軽量で且つ防護効果の優
れたヘルメットを得ることができる。[Function] As described above, the helmet of the present invention constitutes a helmet body mainly composed of a glass fiber layer and an organic fiber fabric layer, and the helmet is required to have the most excellent shock absorption and penetration resistance. Domain, ie at least JIS T 81
The test execution range of the shock absorption test specified in 33 (1982) (hereinafter referred to as the JIS standard range) consists of a glass fiber layer in the outer layer, a general-purpose organic fiber fabric layer in the middle layer, and a glass fiber layer in the inner layer. And a high-strength, high-modulus polyethylene fiber fabric disposed between at least one of the outer and middle layers and the middle and inner layers, and reinforced,
Due to the laminating effect of each of these components and the reinforcing effect of the high-strength and high-modulus polyethylene fiber cloth, shock absorption and penetration resistance are remarkably improved, and a helmet that is relatively lightweight and has excellent protective effect can be obtained. .
本発明において上記強化繊維のマトリックス成分とな
る熱硬化性樹脂としては、汎用のFRP材製造用熱硬化性
樹脂がいずれも支障なく使用できるが、最も一般的なの
は不飽和ポリエステル樹脂、ビニルエステル樹脂、エポ
キシ樹脂、ポリウレタン樹脂等であり、これらは単独で
使用してもよく、あるいは必要により２種以上を併用す
ることもできる。In the present invention, as the thermosetting resin serving as the matrix component of the reinforcing fiber, any thermosetting resin for general-purpose FRP material production can be used without any problem, but the most common is an unsaturated polyester resin, a vinyl ester resin, Epoxy resins, polyurethane resins, etc., which may be used alone or in combination of two or more as necessary.
上記ガラス繊維層は一般にＥ・ガラス（電気絶縁性・
化学耐久性ガラス繊維）が汎用されているがこれに限定
されるものではない。又使用形態としては予めヘルメッ
ト状に賦形化されたプリフォーム・セット及びチョップ
ド・ストランドマットが使用される。The glass fiber layer is generally made of E. glass (electrically insulating
Chemically durable glass fiber) is widely used, but is not limited thereto. As a use form, a preform set and a chopped strand mat preliminarily shaped into a helmet are used.
有機繊維布帛層は主として衝撃吸収性，耐貫通性を保
持しつつ軽量化を図る目的で使用されるものであり、有
機繊維としては通常ナイロン，ポリエステル，ビニロン
等の汎用有機繊維が使用される。The organic fiber fabric layer is mainly used for the purpose of reducing the weight while maintaining shock absorption and penetration resistance, and general organic fibers such as nylon, polyester and vinylon are used as the organic fibers.
ところが汎用有機繊維だけでは必ずしも満足の行く防
護効果は得られにくく、充分な防護効果を得ようとすれ
ば汎用有機繊維層を肉厚にせざるを得ず、結果としてヘ
ルメット全体が重くなり実用にそぐわなくなる。また中
層に衝撃吸収性の高い汎用有機繊維布帛層を形成し、外
層と内層にガラス繊維層を積層して複層構造とし強化す
ることも考えられるが、この様な構成を採用したとして
も、満足のいく防護効果を得る為には全体を肉厚にしな
ければならず、高重量化の問題は解消できない。However, it is difficult to obtain a satisfactory protective effect only with general-purpose organic fibers. Disappears. Also, it is conceivable to form a general-purpose organic fiber fabric layer with high shock absorption in the middle layer and laminate a glass fiber layer on the outer layer and the inner layer to form a multi-layer structure, but even if such a configuration is adopted, In order to obtain a satisfactory protective effect, the entire body must be made thick, and the problem of weight increase cannot be solved.
そこで本発明では、こうした防護効果の不足を補うた
めに、前記外層と中層及び／又は中層と内層の間に高強
力・高弾性率ポリエチレン繊維布帛層（以下、高強力PE
繊維層ということがある）を形成して強化することとし
ている。即ちこの高強力PE繊維はそれ自身高い強度と弾
性率を有しており、しかもガラス繊維に比べると軽量で
あるから、この高強力PE繊維からなる布帛を積層構造の
一部として介在させることにより、衝撃吸収性，耐貫通
性を保持しつつ軽量化を図ることができる。ここで使用
される高強力PE繊維の強力及び弾性率の基準は特に定め
ないが、好ましくは、引張強度が20g/d以上、より好ま
しくは25g/d以上、引張弾性率が500g/d以上、より好ま
しくは1000g/d以上のものである。また布帛の形態も不
織布及び織布の如何を問わないが、織布の方が衝撃吸収
性および耐貫通性は高められる。織布組織にも平織、朱
子織、綾織、バスケット織等様々の種類があり、いずれ
も使用できるが、生地の取扱い性を考慮すると、平織が
最も好ましい。Therefore, in the present invention, in order to make up for the lack of such a protective effect, a high-strength and high-modulus polyethylene fiber cloth layer (hereinafter referred to as a high-strength PE) is provided between the outer layer and the middle layer and / or the middle and inner layers.
(Also referred to as a fibrous layer). That is, since the high-strength PE fiber itself has high strength and elastic modulus, and is lighter than glass fiber, by interposing a cloth made of this high-strength PE fiber as a part of the laminated structure, In addition, it is possible to reduce the weight while maintaining shock absorption and penetration resistance. The strength and modulus of the high-strength PE fiber used here are not particularly defined, but preferably, the tensile strength is 20 g / d or more, more preferably 25 g / d or more, and the tensile modulus is 500 g / d or more. More preferably, it is 1000 g / d or more. Also, the form of the fabric is not limited to a non-woven fabric or a woven fabric, but the woven fabric has higher shock absorption and penetration resistance. There are various types of woven fabrics such as plain weave, satin weave, twill weave, and basket weave. Any of them can be used, but plain weave is most preferable in consideration of the handleability of the fabric.
上記高強力PE繊維布帛層による強化効果が最も有効に
発揮されるのは、前記外層・中層・内層の各構成繊維層
の間に配設した場合であり、上記三層構造の外面側また
は内面側に高強力PE繊維布帛を積層しても、本発明の目
的にかなう強化効果は得られない。この場合、衝撃を受
けたときの層間剥離を抑えるうえでは、高強力PE繊維布
帛を単層とするのが良く、層間に介装される該高強力PE
繊維布帛の好ましい生地目付量は100〜300g/m2程度であ
る。撚構成は、無撚、撚掛け糸のいずれでもよいが、衝
撃を受けたときの層間剥離を抑えるうえでは、経糸が撚
掛けされ、緯糸は実質的に無撚りのものが好ましい。但
し経糸については撚掛数が大きくなり過ぎると引張強力
が低下する傾向があるので、2.0以下に抑えることが望
まれる。The reinforcing effect by the high-strength PE fiber cloth layer is most effectively exhibited when the outer layer, the middle layer, and the inner layer are disposed between the constituent fiber layers, and the outer surface or the inner surface of the three-layer structure. Even if a high-strength PE fiber fabric is laminated on the side, the reinforcing effect for the purpose of the present invention cannot be obtained. In this case, in order to suppress delamination when subjected to an impact, it is preferable to use a high-strength PE fiber cloth as a single layer, and the high-strength PE interposed between the layers.
The preferred fabric weight of the fiber fabric is about 100 to 300 g / m 2 . The twist configuration may be either a non-twist or a twisted yarn. However, in order to suppress delamination upon impact, a warp is preferably twisted and the weft is preferably substantially twisted. However, if the number of twists of the warp is too large, the tensile strength tends to decrease. Therefore, it is desirable to suppress the warp to 2.0 or less.
上記積層素材を用いてヘルメットを製造する方法につ
いても格別の制約はないが、最も一般的な方法は、予め
ヘルメット状に賦形化されたガラス繊維プリフォームセ
ットを、120℃程度に加熱された雌金型内に装填し、少
なくとも強化が必要とされるJIS規格範囲内面側に高強
力PE繊維布帛を配設し、次いでビニロン繊維布帛等の汎
用有機繊維布帛を目標強度に応じて所定枚数積層し、更
に高強力PE繊維布帛を配設してから最内層に薄いガラス
繊維マットを当てガラスとして添装し強化繊維層を構成
する。ついで前記した含浸用熱硬化性樹脂液を金型内に
所定量注入し、直ちにゴム膜を雌金型内で膨らませて、
圧力を加えて加圧成形し樹脂を硬化させる方法である。Although there is no particular limitation on the method of manufacturing a helmet using the laminated material, the most common method is to heat a glass fiber preform set preliminarily shaped into a helmet and heated to about 120 ° C. A high-strength PE fiber cloth is placed on the inner side of the JIS standard range where at least reinforcement is required, and then a predetermined number of general-purpose organic fiber cloths such as vinylon fiber cloth are laminated according to the target strength. Then, a high-strength PE fiber fabric is further provided, and a thin glass fiber mat is applied to the innermost layer as a glass to form a reinforcing fiber layer. Next, a predetermined amount of the above-described thermosetting resin liquid for impregnation is injected into the mold, and the rubber film is immediately expanded in the female mold,
In this method, the resin is cured by applying pressure to form the resin under pressure.
［実施例］ 実施例１ 全デニール1200d、引張強度30g/d、引張弾性率1100g/
dの高強PE繊維（ダイニーマ・ジャパン社製商品名「ダ
イニーマSK-60」）を使用し、下記構成の平織物を製織
した。[Example] Example 1 All denier 1200d, tensile strength 30g / d, tensile modulus 1100g /
Using a high-strength PE fiber d (trade name “Dyneema SK-60” manufactured by Dyneema Japan), a plain woven fabric having the following configuration was woven.
上記平織物とガラス繊維プリフォームセット、有機繊
維織布（クラレ社製ビニロン織布「バスケット」目付23
0g/m2）及び内面仕上げ用ガラス繊維マット（日東紡績
社製［目付450g/m2］）を使用し、熱硬化製樹脂として
は昭和高分子社製のビニルエステル樹脂（リポキシR80
2）を用いて、下記第１表に示す構成のヘルメットを作
製した。尚成形には加圧バッグ法を採用し、120℃×15
分で硬化させた。 Plain fabric and glass fiber preform set, organic fiber woven cloth (Kuraray vinylon woven cloth "basket"
0g / m 2 ) and a glass fiber mat for inner surface finish (Nitto Boseki Co., Ltd. [450 g / m 2 ]), and as the thermosetting resin, vinyl ester resin (Lipoxy R80 manufactured by Showa Kogyo KK)
Using 2), helmets having the configurations shown in Table 1 below were produced. In addition, pressurized bag method is adopted for molding, 120 ℃ × 15
Cured in minutes.
加圧成形後のトリミング及び打抜き仕上げにおいてカ
ット性は良好であった。 The cutability was good in the trimming and punching finishing after pressure molding.
また得られたヘルメットの重量は800gと軽量であり、
しかもJIS T 8133規格に基づいて耐貫通性及び衝撃吸収
性試験を行なった結果、いずれの規格にも合格した。The weight of the obtained helmet is as light as 800 g,
In addition, as a result of conducting a penetration resistance and shock absorption test based on JIS T 8133 standard, all the standards were passed.
実施例２ 実施例１で用いたのと同じ高強力PE繊維を使用し、下
記構成の平織物を製織した。Example 2 Using the same high-strength PE fiber as used in Example 1, a plain weave having the following structure was woven.
上記平織物と、実施例１で用いたのと同じガラス繊維
プリフォームセット、有機繊維織布、仕上げ用ガラス繊
維マット及び熱硬化性樹脂を使用し、同様の加圧、加熱
条件で第２表に示す構成のヘルメットを作製した。 Using the above plain woven fabric, the same glass fiber preform set, organic fiber woven fabric, finishing glass fiber mat and thermosetting resin as used in Example 1, Table 2 was obtained under the same pressure and heating conditions. A helmet having the configuration shown in was manufactured.
加圧成形後のトリミング及び打抜き仕上げにおいてカ
ット性は良好であった。 The cutability was good in the trimming and punching finishing after pressure molding.
また得られたヘルメットの重量は780gと軽量であり、
しかもJIS T 8133規格による耐貫通性及び衝撃吸収性試
験を行なったところ、いずれの規格にも合格した。In addition, the weight of the obtained helmet is lightweight as 780 g,
Moreover, when a penetration resistance and impact absorption test according to the JIS T 8133 standard were performed, all the standards were passed.
比較例１ 高強力PE繊維に代わる強化繊維をして市販のケブラー
平織物（旭シュヘーベル社製アラミド繊維織物：目付け
量170g/m2）を使用したほかは実施例１と同様の積層構
成のヘルメットを作製した。Comparative Example 1 A helmet having the same laminated structure as in Example 1 except that a commercially available Kevlar plain fabric (Aramid fiber fabric manufactured by Asahi Schwebel: weight per unit area: 170 g / m 2 ) was used as a reinforcing fiber instead of the high-strength PE fiber. Was prepared.
得られたヘルメットは、JIS T 8133規格による耐貫通
性及び衝撃吸収性試験のいずれにも合格したが、重量は
830gと重く、しかも加圧成形後のトリミング及び打抜き
仕上げ工程におけるカット性が悪く、切り口にはケブラ
ー単繊維のひげ状物が残った。The obtained helmet passed both the penetration resistance test and the shock absorption test according to JIS T 8133 standard, but the weight was
The weight was 830 g, and the cutability in the trimming and punching finishing steps after pressure molding was poor, and Kevlar single fiber whiskers remained at the cut end.
比較例２ 実施例１で用いたのと同じガラス繊維セット、有機繊
維織布、仕上げ用ガラス繊維マット及び熱硬化性樹脂を
使用し、高強力PE繊維布は使用しないで第３表に示す積
層構成のヘルメットを作製した。尚成形条件も実施例１
と同じとした。Comparative Example 2 Using the same glass fiber set, organic fiber woven fabric, finishing glass fiber mat and thermosetting resin as used in Example 1, without using a high-strength PE fiber cloth, the lamination shown in Table 3 A helmet having the configuration was manufactured. The molding conditions were also the same as in Example 1.
And the same.
加圧成形後のトリミング及び打抜き仕上げ加工におい
てカット性は良好であったが、重量は840gと重く、また
JIS T 8133規格の耐貫通性は一応合格したが、衝撃吸収
性は不合格であった。 Cutability was good in trimming and punching finishing after pressure molding, but the weight was heavy as 840 g, and
Although the penetration resistance of the JIS T 8133 standard was passed, the shock absorption was rejected.
［発明の効果］ 本発明は以上の様に構成されており、ガラス繊維層と
有機繊維織布層を基本構成とするヘルメットを高強力・
高弾性率ポリエチレン繊維布帛で強化することによっ
て、軽量でしかも耐貫通性及び衝撃吸収性の優れたヘル
メットを安価に提供し得ることになった。[Effects of the Invention] The present invention is configured as described above, and a helmet having a glass fiber layer and an organic fiber woven fabric layer as a basic structure has a high strength and a high strength.
By reinforcing with a high-modulus polyethylene fiber cloth, a helmet that is lightweight and has excellent penetration resistance and shock absorption can be provided at low cost.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭53−104346（ＪＰ，Ａ) 特開 平３−69603（ＪＰ，Ａ) 特開 平３−69605（ＪＰ，Ａ) 特開 昭58−186603（ＪＰ，Ａ) 実開 昭63−140027（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) A42B 3/00 - 3/06 A42B 3/10 - 3/12──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-104346 (JP, A) JP-A-3-69603 (JP, A) JP-A-3-69605 (JP, A) JP-A 58-104 186603 (JP, A) Japanese Utility Model 63-10027 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) A42B 3/00-3/06 A42B 3/10-3/12
Claims (1)
繊維強化熱硬化性樹脂を主たる構成成分とするヘルメッ
トにおいて、該ヘルメットにおける少なくともJIS T 81
33（1982）で規定される衝撃吸収性試験の試験実施範囲
は、外層にガラス繊維層、中層に汎用有機繊維布帛層、
内層にガラス繊維層を積層して構成され、且つ上記外層
と中層間及び中層と内層間の少なくともいずれかの層間
に、高強力，高弾性率ポリエチレン繊維布帛が配設され
ていることを特徴とする繊維強化樹脂製ヘルメット。1. A helmet mainly comprising a fiber-reinforced thermosetting resin having a glass fiber layer and an organic fiber fabric layer, wherein at least JIS T 81 in the helmet is used.
The test execution range of the shock absorption test specified in 33 (1982) is that the outer layer is a glass fiber layer, the middle layer is a general-purpose organic fiber fabric layer,
A glass fiber layer is laminated on the inner layer, and a high-strength, high-modulus polyethylene fiber fabric is disposed between at least one of the outer layer and the middle layer and / or the middle layer and the inner layer. Helmet made of fiber reinforced resin.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1203134A JP2831710B2 (en) | 1989-08-05 | 1989-08-05 | Helmet made of fiber reinforced resin |
| US07/560,995 US5075904A (en) | 1989-08-05 | 1990-08-01 | Helmet with reinforcement |
| EP19900114952 EP0412452A3 (en) | 1989-08-05 | 1990-08-03 | Helmet |
| KR1019900011986A KR910004131A (en) | 1989-08-05 | 1990-08-04 | helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1203134A JP2831710B2 (en) | 1989-08-05 | 1989-08-05 | Helmet made of fiber reinforced resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369604A JPH0369604A (en) | 1991-03-26 |
| JP2831710B2 true JP2831710B2 (en) | 1998-12-02 |
Family
ID=16468979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1203134A Expired - Lifetime JP2831710B2 (en) | 1989-08-05 | 1989-08-05 | Helmet made of fiber reinforced resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2831710B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4453071B2 (en) * | 2004-03-09 | 2010-04-21 | 東レ株式会社 | Impact resistant helmet |
| US9163335B2 (en) * | 2011-09-06 | 2015-10-20 | Honeywell International Inc. | High performance ballistic composites and method of making |
-
1989
- 1989-08-05 JP JP1203134A patent/JP2831710B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0369604A (en) | 1991-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5075904A (en) | Helmet with reinforcement | |
| US4550044A (en) | Ballistic resistant armor panel and method of constructing the same | |
| US5635288A (en) | Ballistic resistant composite for hard-armor application | |
| US5935678A (en) | Ballistic laminate structure in sheet form | |
| CA2779040C (en) | Polymer composite structure reinforced with shape memory alloy and method of manufacturing same | |
| JP5241257B2 (en) | Fiber-reinforced composite material and method for producing the same | |
| JPH02173044A (en) | Fiber-reinforced plastics and reinforcing material therefor | |
| JPH08501131A (en) | Safety helmet | |
| CN104669725B (en) | A kind of assorted fibre multidimensional bulletproof composite breast plate and preparation method thereof | |
| JP3737925B2 (en) | Laminated structure of the cap body in the helmet | |
| CN103600536B (en) | A kind of composite for bulletproof halmet and preparation method thereof | |
| JP2831710B2 (en) | Helmet made of fiber reinforced resin | |
| JP2831711B2 (en) | Helmet | |
| JP2923306B2 (en) | Helmet | |
| JP4964092B2 (en) | Fiber reinforced resin composite material and molded product formed by molding the same | |
| JP3048909B2 (en) | Composite molding | |
| JP3651065B2 (en) | helmet | |
| JP3558177B2 (en) | Helmet | |
| JPH0577368A (en) | Impact-resistant permeable laminate | |
| JPS635937A (en) | Member for protection tool and manufacture thereof | |
| JPH08121996A (en) | Light weight impact resistant material | |
| JPH0345334A (en) | Fiber reinforced plastic and reinforcing material therefor | |
| JPH08269809A (en) | Helmet | |
| KR101249157B1 (en) | Protect panel and product mehod of the same | |
| US20040086706A1 (en) | Polymer composite structure reinforced with shape memory alloy and method of manufacturing same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080925 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080925 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090925 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term |