JPH0442981B2 - - Google Patents
Info
- Publication number
- JPH0442981B2 JPH0442981B2 JP59191720A JP19172084A JPH0442981B2 JP H0442981 B2 JPH0442981 B2 JP H0442981B2 JP 59191720 A JP59191720 A JP 59191720A JP 19172084 A JP19172084 A JP 19172084A JP H0442981 B2 JPH0442981 B2 JP H0442981B2
- Authority
- JP
- Japan
- Prior art keywords
- coil spring
- fiber
- fibers
- composite material
- reinforced composite
- 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 claims description 24
- 238000000034 method Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 18
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 3
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 239000009719 polyimide resin Substances 0.000 claims description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 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
- 239000011159 matrix material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/82—Cores or mandrels
- B29C53/821—Mandrels especially adapted for winding and joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/12—Bending or folding helically, e.g. for making springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2707/00—Use of elements other than metals for preformed parts, e.g. for inserts
- B29K2707/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/774—Springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Moulding By Coating Moulds (AREA)
Description
〔産業上の利用分野〕
本発明は、繊維強化複合材料を用いてコイルば
ねを作製するための方法に関するものである。
〔従来の技術〕
従来、繊維強化複合材料を用いてコイルばねを
製造する方法として下記のものが知られている。
繊維強化複合材料を円筒状に成形した後所望
の形状に切断する方法。
予め樹脂含浸した繊維束を溝付の心金に巻回
成形する方法。
予め樹脂含浸した繊維束を可撓性チユーブ内
に入れ成形後チユーブを取り除く方法。
予め樹脂含浸した繊維束を捩つたものを可撓
性の丸棒に巻回後、更に溝付の心金に巻回して
成形する方法。
〔発明が解決しようとする問題点〕
上記従来の繊維強化複合材料を用いたコイルば
ねの各種製造方法には下記の欠点があつた。各番
号は上記製造方法の各番号に対応する。
引張方向に繊維を配向させることが困難であ
り、またそれ故に所望の形状に切断する際、連
続繊維を部分的に切断してしまう危険性大であ
り、強度的に不充分かつ不安定なものしか得ら
れない。また、材料の損失も大きい。
上記のような連続繊維を切断することは無い
が、脱型が非常に困難であり、この脱型時に製
品の破損を伴う危険性大である。このため生産
性が低い製造方法である。
成形時に形状がくずれるため、安定した製品
が得がたい。
成形が非常に煩雑であり、また繊維束を予め
捩ることから、繊維の母材中への配置が不均一
となり、安定した製品が得がたい。また、設備
投資も多大となる。
それ故、本発明の目的は、上記欠点を解消し、
引張方向に繊維を配向でき、強化繊維の有す
る充分なる強度からコイルばねとしても強度的
に従来の金属性のものと比較して充分な強度が
得られ、
円筒状心金上に巻きつけて所望コイルばね形
状を形成し、かつ脱型を容易にし、
一定の張力にて心金に巻回して成形時に繊維
のくずれを無くし、安定した強度を得られるよ
うにし、
従来のフイラメントワインダ機にて容易に製
造でき、安価な設備で工業的製造を可能にする
繊維強化複合材料コイルばねの製造方法を提供
するためにある。
〔問題点を解決するための手段〕
上記目的を達成するため、本発明に係る繊維強
化複合材料コイルばねの製造方法においては、円
筒状心金に所望のコイルばね形状を与える螺旋状
のスペーサを嵌脱自在に嵌挿し、未硬化の熱硬化
性樹脂含浸繊維束を引張方向に配向させながら一
定の張力下に前記円筒状心金外周に形成される前
記スペーサの間〓に巻回してコイルばね形状を形
成し、これを円筒状心金と共に全体を加熱して前
記熱硬化性樹脂を硬化せしめ、前記円筒状心金よ
りスペーサと共に脱型したのちこのスペーサを順
次離脱することにより所望のコイルばねを得るこ
とを特徴とする。
本発明で使用される円筒状心金は第１図参照符
号１０で示す金属円筒の両端にはフイラメントワ
インダ機に軸着する軸が装着される。円筒径はコ
イルばねの内径に等しく、一般に鋼材にて作製さ
れる。コイルばねの成形性を向上させるため、円
筒外面にシリコンラバーの均一な外層１６を形成
した円筒状心金の別の実施態様が第２図に示さ
れ、この場合コイルばね成形時にシリコンラバー
のもつ高い熱膨張率により、加熱時製品に内側か
ら圧力が加わり、より成形性が良くなる利点が得
られる。
スペーサ１２は目的コイルばねと相似形に、一
般に鋼パイプ材の切削加工により作成され、円筒
状心金に嵌脱自在に嵌挿できるよう構成される。
本発明で使用できる繊維は、炭素繊維、ガラス
繊維、ボロン繊維、アラミド繊維またはセラミツ
ク繊維が挙げられ、使用目的、条件に合わせて適
宜選択して使用されるが、炭素繊維とガラス繊維
が広く一般目的に適応でき重要である。
使用される熱硬化性樹脂としては、エポキシ樹
脂、不飽和ポリエステル樹脂、フエノール樹脂、
ビスマレイミド樹脂またはポリイミド樹脂などが
挙げられ、これら樹脂の未硬化プリポリマ溶液を
上記繊維に含浸せしめる。この場合２つの方法が
あり、繊維を心金に巻回する直前に、繊維を樹脂
槽に含浸した後、余分な樹脂をしごきロールを通
して除去し、そのまま心金に巻回するウエツト型
と、心金に巻回する樹脂含浸繊維を予め別工程で
調製するドライ型で、後者の方法は樹脂槽の必要
なく樹脂量を充分に制御したものを使用でき安定
した製品が得られる利点がある。
〔実施例〕
次に、実施例により本発明に係る繊維強化複合
材料コイルばねの製造方法を説明する。
実施例 １
炭素繊維に予め未硬化のエポキシ樹脂を含浸し
たもの（以下プリプレグと称する）を所望のコイ
ルばねの幅に切断する。鋼製の円筒状心金（第１
図、１０）に別途作製した鋼製スペーサ１２を円
筒状心金１０に嵌脱自在に嵌挿する。10Kgの張力
下にプリプレグテープを心金上にかつスペーサ１
２の空〓を埋めるピッチで巻回して所望のコイル
ばね形状になるよう所望の厚みになるまで巻回す
る。第１図参照符号１４がこの状態を示す、加圧
テープをプリプレグテープの最上層上に巻回した
後、円筒状心金ごと130℃のオーブンに入れ、90
分間保持して樹脂を硬化させた。冷却後コイルば
ねとスペーサを円筒状心金から脱型した後、スペ
ーサをコイルばねからはずし、所望のコイルばね
を得た。
実施例 ２
炭素繊維を所望のコイルばねの幅に配列し、未
硬化エポキシ樹脂溶液に浸漬後しごきロールを通
して余分の樹脂を除去し、そのまま心金にかつス
ペーサの間〓に張力１Kg下に巻回し、所望の厚み
になるまで巻回してコイルばね形状を形成した。
次いで心金ごと130℃のオーブン内に入れ、一定
速度で回転させながら90分間保持して樹脂を硬化
させ、実施例１同様にコイルばねを分離した。
実施例 ３
所望のコイルばねの内径より10％小さい外径の
鋼製円筒状心金上にシリコンラバー外層を成形し
て、丁度コイルばねの内径と等しい２重層円筒を
調製した後、実施例１と同様にしてコイルばねを
得た。
実施例 ４
ガラス繊維とエポキシ樹脂のプリプレグにつき
実施例１と同様に処理してコイルばねを得た。
実施例 ５
実施例１〜４の本発明に係るコイルばねと比較
のためチタン製のコイルばねＡと、炭素繊維強化
エポキシ樹脂複合材料を円筒状に成形した後に実
施例１と同じ大きさのコイルばねを切抜いて得た
コイルばねＢにつき捩り試験により強度比較をし
た。結果は第１表の通りである。
[Industrial Field of Application] The present invention relates to a method for manufacturing a coil spring using a fiber-reinforced composite material. [Prior Art] Conventionally, the following methods are known as methods for manufacturing coil springs using fiber-reinforced composite materials. A method in which fiber-reinforced composite material is formed into a cylindrical shape and then cut into the desired shape. A method in which a fiber bundle pre-impregnated with resin is wound around a grooved mandrel. A method in which a fiber bundle pre-impregnated with resin is placed inside a flexible tube and the tube is removed after molding. A method in which a twisted fiber bundle pre-impregnated with resin is wound around a flexible round rod, and then further wound around a grooved mandrel. [Problems to be Solved by the Invention] Various methods for manufacturing coil springs using the conventional fiber-reinforced composite materials described above have the following drawbacks. Each number corresponds to each number of the above manufacturing method. It is difficult to orient the fibers in the tensile direction, and therefore there is a high risk of partially cutting the continuous fibers when cutting them into the desired shape, and the strength is insufficient and unstable. I can only get it. Moreover, the loss of material is also large. Although continuous fibers as described above are not cut, demolding is extremely difficult and there is a high risk of damage to the product during demolding. Therefore, this is a manufacturing method with low productivity. It is difficult to obtain a stable product because the shape collapses during molding. Molding is very complicated, and since the fiber bundles are twisted in advance, the fibers are unevenly arranged in the matrix, making it difficult to obtain a stable product. In addition, the capital investment will be large. Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks, to make it possible to orient the fibers in the tensile direction, and to use the sufficient strength of the reinforcing fibers as a coil spring, which has sufficient strength compared to conventional metallic ones. It provides strength, can be wound around a cylindrical mandrel to form the desired coil spring shape, is easy to demold, and is wound around a mandrel with a constant tension to prevent fibers from collapsing during molding, making it stable. The object of the present invention is to provide a method for manufacturing a fiber-reinforced composite material coil spring that has high strength, can be easily manufactured using a conventional filament winder, and can be manufactured industrially with inexpensive equipment. [Means for Solving the Problems] In order to achieve the above object, in the method for manufacturing a fiber-reinforced composite material coil spring according to the present invention, a spiral spacer is provided to give a desired coil spring shape to a cylindrical mandrel. The uncured thermosetting resin-impregnated fiber bundle is removably inserted and wound under constant tension between the spacers formed on the outer periphery of the cylindrical mandrel while orienting the uncured thermosetting resin-impregnated fiber bundle in the tensile direction to form a coil spring. A desired coil spring is formed by forming a shape, heating the whole together with a cylindrical mandrel to harden the thermosetting resin, demolding the cylindrical mandrel together with the spacers, and then sequentially removing the spacers. It is characterized by obtaining. The cylindrical mandrel used in the present invention is a metal cylinder indicated by reference numeral 10 in FIG. 1, and at both ends thereof a shaft is attached to a filament winder. The cylinder diameter is equal to the inner diameter of the coil spring, and is generally made of steel. Another embodiment of a cylindrical mandrel having a uniform outer layer 16 of silicone rubber formed on the outer surface of the cylinder to improve the formability of the coil spring is shown in FIG. The high coefficient of thermal expansion applies pressure to the product from the inside when heated, giving it the advantage of better moldability. The spacer 12 is generally made by cutting a steel pipe material to have a similar shape to the intended coil spring, and is configured to be removably inserted into the cylindrical mandrel. Fibers that can be used in the present invention include carbon fibers, glass fibers, boron fibers, aramid fibers, and ceramic fibers, and are appropriately selected and used depending on the purpose and conditions of use, but carbon fibers and glass fibers are widely used. It is important to be adaptable to the purpose. Thermosetting resins used include epoxy resins, unsaturated polyester resins, phenolic resins,
Examples include bismaleimide resin or polyimide resin, and the fibers are impregnated with uncured prepolymer solutions of these resins. In this case, there are two methods. Immediately before winding the fibers around the mandrel, the fibers are impregnated in a resin bath, the excess resin is removed through ironing rolls, and the fibers are then wound around the mandrel as is, the wet method. The latter method is a dry method in which the resin-impregnated fibers to be wound around the gold are prepared in advance in a separate process.The latter method has the advantage of not requiring a resin bath and allowing the use of well-controlled resin amounts, resulting in a stable product. [Example] Next, a method for manufacturing a fiber-reinforced composite material coil spring according to the present invention will be explained with reference to an example. Example 1 Carbon fibers impregnated with an uncured epoxy resin (hereinafter referred to as prepreg) are cut into the desired width of a coil spring. Steel cylindrical mandrel (first
As shown in FIG. 10), a separately produced steel spacer 12 is removably fitted into the cylindrical mandrel 10. Place the prepreg tape on the mandrel and spacer 1 under a tension of 10Kg.
The coil is wound at a pitch that fills the void in step 2 until it reaches the desired thickness to form the desired coil spring shape. After winding the pressure tape (reference numeral 14 in FIG. 1 indicates this state) on the top layer of the prepreg tape, the cylindrical mandrel was placed in an oven at 130°C and heated to 90°C.
Hold for a minute to cure the resin. After cooling, the coil spring and spacer were demolded from the cylindrical mandrel, and then the spacer was removed from the coil spring to obtain a desired coil spring. Example 2 Carbon fibers were arranged in the desired width of a coil spring, dipped in an uncured epoxy resin solution, passed through an ironing roll to remove excess resin, and then wound around a core metal and between spacers under a tension of 1 kg. , and was wound to a desired thickness to form a coiled spring shape.
Next, the core was placed in an oven at 130° C. and held for 90 minutes while rotating at a constant speed to harden the resin, and the coil spring was separated in the same manner as in Example 1. Example 3 After forming a silicon rubber outer layer on a steel cylindrical mandrel with an outer diameter 10% smaller than the inner diameter of the desired coil spring to prepare a double-layer cylinder exactly equal to the inner diameter of the coil spring, Example 1 was carried out. A coil spring was obtained in the same manner. Example 4 A prepreg of glass fiber and epoxy resin was treated in the same manner as in Example 1 to obtain a coil spring. Example 5 For comparison with the coil springs according to the present invention in Examples 1 to 4, a titanium coil spring A and a coil of the same size as in Example 1 were prepared after molding a carbon fiber reinforced epoxy resin composite material into a cylindrical shape. A coil spring B obtained by cutting out a spring was subjected to a torsion test to compare its strength. The results are shown in Table 1.
【表】【table】
本発明に係る繊維強化複合材料コイルばねの製
造方法によると、従来のフイラメントワインダ機
による安価な設備で工業的に品質が安定し、かつ
円筒状心金に巻き付けて所望のコイルばねを形成
することにより、脱型を容易にした繊維強化複合
材料コイルばねを提供することができ、特に、炭
素繊維強化エポキシ樹脂複合材料コイルばねによ
ると同じ機能下でチタン製コイルばね約1/3重量
ですみ、かつ静的及び疲労強度向上、すなわち耐
久性向上が達成される。
According to the method for manufacturing a fiber-reinforced composite material coil spring according to the present invention, the quality is industrially stable using inexpensive equipment using a conventional filament winder machine, and the desired coil spring can be formed by winding it around a cylindrical core metal. As a result, it is possible to provide a fiber-reinforced composite coil spring that is easy to demold, and in particular, a carbon fiber-reinforced epoxy resin composite coil spring has the same function as a titanium coil spring with a weight that is approximately 1/3 that of a carbon fiber-reinforced epoxy resin composite coil spring. Furthermore, improvement in static and fatigue strength, that is, improvement in durability is achieved.
第１図は本発明に係る繊維強化複合材料コイル
ばねの製造に使用される円筒状心金にコイルばね
形状が形成された状態を示す概略縦断面図、第２
図は第１図とは別の円筒状心金を使用する実施態
様を示す概略縦断面図である。
１０……円筒状心金、１２……スペーサ、１４
……繊維強化複合材料、１６……シリコンラバー
外層。
FIG. 1 is a schematic longitudinal cross-sectional view showing a state in which a coil spring shape is formed on a cylindrical mandrel used for manufacturing a fiber-reinforced composite material coil spring according to the present invention, and FIG.
The figure is a schematic longitudinal sectional view showing an embodiment using a cylindrical mandrel different from that shown in FIG. 1. 10... Cylindrical mandrel, 12... Spacer, 14
...Fiber-reinforced composite material, 16...Silicone rubber outer layer.
Claims (1)
螺旋状のスペーサを嵌脱自在に嵌挿し、未硬化の
熱硬化性樹脂含浸繊維束を引張方向に配向させな
がら一定の張力下に前記円筒状心金外周に形成さ
れる前記スペーサの間〓に巻回してコイルばね形
状を形成し、これを円筒状心金と共に全体を加熱
して前記熱硬化性樹脂を硬化せしめ、前記円筒状
心金よりスペーサと共に脱型したのちこのスペー
サを順次離脱することにより所望のコイルばねを
得ることを特徴とする繊維強化複合材料コイルば
ねの製造方法。 ２ 円筒状心金は金属円筒よりなる特許請求の範
囲第１項記載の繊維強化複合材料コイルばねの製
造方法。 ３ 円筒状心金は金属円筒とシリコンゴム外層と
より構成される特許請求の範囲第１項記載の繊維
強化複合材料コイルばねの製造方法。 ４ 繊維強化複合材料の繊維は、炭素繊維、ガラ
ス繊維、ボロン繊維、アラミド繊維またはセラミ
ツク繊維である特許請求の範囲第１項記載の繊維
強化複合材料コイルばねの製造方法。 ５ 熱硬化性樹脂はエポキシ樹脂、不飽和ポリエ
ステル樹脂、フエノール樹脂、ビスマレイミド樹
脂またはポリイミド樹脂である特許請求の範囲第
１項記載の繊維強化複合材料コイルばねの製造方
法。[Claims] 1. A spiral spacer that gives a desired coil spring shape is removably inserted into a cylindrical mandrel, and the uncured thermosetting resin-impregnated fiber bundle is oriented in the tensile direction while maintaining a certain shape. Winding under tension between the spacers formed on the outer periphery of the cylindrical mandrel to form a coil spring shape, and heating the whole together with the cylindrical mandrel to harden the thermosetting resin; A method for manufacturing a fiber-reinforced composite material coil spring, characterized in that a desired coil spring is obtained by removing the spacer from the cylindrical mandrel and then sequentially removing the spacer. 2. The method for manufacturing a fiber-reinforced composite material coil spring according to claim 1, wherein the cylindrical mandrel is a metal cylinder. 3. The method for manufacturing a fiber-reinforced composite material coil spring according to claim 1, wherein the cylindrical core is comprised of a metal cylinder and a silicone rubber outer layer. 4. The method for manufacturing a fiber-reinforced composite material coil spring according to claim 1, wherein the fibers of the fiber-reinforced composite material are carbon fibers, glass fibers, boron fibers, aramid fibers, or ceramic fibers. 5. The method for manufacturing a fiber-reinforced composite material coil spring according to claim 1, wherein the thermosetting resin is an epoxy resin, an unsaturated polyester resin, a phenolic resin, a bismaleimide resin, or a polyimide resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59191720A JPS6169439A (en) | 1984-09-14 | 1984-09-14 | Manufacture of coiled spring made of fiber reinforced compound material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59191720A JPS6169439A (en) | 1984-09-14 | 1984-09-14 | Manufacture of coiled spring made of fiber reinforced compound material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6169439A JPS6169439A (en) | 1986-04-10 |
| JPH0442981B2 true JPH0442981B2 (en) | 1992-07-15 |
Family
ID=16279354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59191720A Granted JPS6169439A (en) | 1984-09-14 | 1984-09-14 | Manufacture of coiled spring made of fiber reinforced compound material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6169439A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2710870B1 (en) * | 1993-10-08 | 1995-12-08 | Inst Francais Du Petrole | Device and method for mass production of fiber-reinforced resin parts. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55164126A (en) * | 1979-06-06 | 1980-12-20 | Sumitomo Electric Ind Ltd | Manufacture of fiber-reinforced plastic coil spring |
| JPS5664421A (en) * | 1979-10-30 | 1981-06-01 | Mitsubishi Electric Corp | Manufacture of resin-molded coil |
| JPS57165233A (en) * | 1981-04-07 | 1982-10-12 | Hiroshima Plast Kk | Manufacturing device for coil-shaped substance |
-
1984
- 1984-09-14 JP JP59191720A patent/JPS6169439A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55164126A (en) * | 1979-06-06 | 1980-12-20 | Sumitomo Electric Ind Ltd | Manufacture of fiber-reinforced plastic coil spring |
| JPS5664421A (en) * | 1979-10-30 | 1981-06-01 | Mitsubishi Electric Corp | Manufacture of resin-molded coil |
| JPS57165233A (en) * | 1981-04-07 | 1982-10-12 | Hiroshima Plast Kk | Manufacturing device for coil-shaped substance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6169439A (en) | 1986-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3271132B1 (en) | A fiber-reinforced composite sports article and its method of manufacture | |
| US2980158A (en) | Method and mold for producing an archery bow | |
| US4857124A (en) | Fiber-reinforced plastic strut connecting link | |
| US3953637A (en) | Slender rod for fishing rods and method of making the same | |
| JPH10510012A (en) | Improved braided preforms for composites | |
| US5225016A (en) | Method of manufacturing an advanced composite duct having integral ribs | |
| US4770832A (en) | Process for manufacturing of structural reinforcing material | |
| JPH0442981B2 (en) | ||
| JPS6138021B2 (en) | ||
| US4003778A (en) | Method of making slender rod for fishing rods | |
| JPH05168375A (en) | Material for fishing rod and its production | |
| JPH07329196A (en) | Synthetic resin tube reinforced by fiber | |
| JPH07323492A (en) | Production of coil spring made of frp | |
| JP3692691B2 (en) | Fiber reinforced plastic tubular body | |
| KR20020061885A (en) | Tent Pole and Method for Producing Thereof | |
| JPH0320336B2 (en) | ||
| JPH01249326A (en) | Manufacture of fiber-reinforced resin spring | |
| JPH02255323A (en) | Manufacture of substitute material for fiber reinforced resin reinforcing bar | |
| JPS6228232A (en) | Manufacture of polygonal angling rod | |
| JPH0615750A (en) | Method for molding fiber reinforced resin pipe having bent part and fiber reinforced resin pipe | |
| JPS635247B2 (en) | ||
| JPS6120731A (en) | Tubular molded body | |
| JPS61220832A (en) | Manufacture of curved pipe, made of fiber reinforced plastics and having square section | |
| JPH08141121A (en) | Manufacture of golf shaft | |
| JPH0352203B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |