【発明の詳細な説明】
本発明は複合材料の補強材となる新規な中間体に係るも
のであり、その製造方法は補強材となるフィラメント糸
条なまず平行に並ぶ如く添糸で編成することによって一
目を介して配列せしめ、然る后に成形加工する複合材料
成形物（以下コン〆ジットと称する）の形に応じてフィ
ラメント糸条の配列を変更せしめることを特徴とするも
のである◎
本発明者等は上記発明の基本構造については先に特許出
願したが１本発明ては更に中間体とし、ての配列蛮形度
の自由度を大きくせんとする方法について検討した結果
完成したものであり１前記出願の内容に於て添糸として
弾性糸を以って補強材フィラメント糸条を編目群によっ
て抱含せしめて配列せしめる点に特徴があるものである
。即ち、その形成方法は一般衣料でよく使用されている
這常の糸で伸縮性７アプリツタを得る編成操作により行
なう。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel intermediate that serves as a reinforcing material for composite materials, and the method for producing the intermediate is to knit the filament threads that serve as the reinforcing material with plating threads so that they are arranged in parallel. The present invention is characterized in that the arrangement of the filament threads is changed in accordance with the shape of the composite material molded product (hereinafter referred to as a conduit) that is arranged at a glance and then molded. The authors had previously filed a patent application for the basic structure of the above invention, but the present invention was completed as a result of further study on a method of creating an intermediate and increasing the degree of freedom in the degree of freedom in the arrangement. 1. The content of the above-mentioned application is characterized in that reinforcing filament threads are enclosed and arranged in stitch groups using elastic threads as plating threads. That is, the formation method is carried out by a knitting operation to obtain a stretchable 7-ply vine using a common thread that is often used in general clothing.
かかる操作により補強材フィラメント糸条を添糸によっ
て編成される編目群に包み込み得られたフィラメント糸
条集合体は編目の伸縮によってフィラメント糸条間隔が
編目の伸縮し得る範囲角に於てあらゆる方向に拡がり１
又１縮むことによって変形する。かかるＩｌ形によって
所望のｌ１ｌＩＩ１１立体を形成することが可能となる
０次に如何なる方法により添糸で補強材フィラメント糸
条の配列を形成させるかであるが、要は添糸自体が纏Ｉ
Ｉ形成し１その一目間に補強材フィラメント糸条を抱含
させればよく、そのための添糸の編目作成方法としては
１最、低−針宋を有する編機を必要とする０蒙纒機を使
用し・最低一針床の夫々の編針により交互に編目を形成
する如く添糸を繻威し、かかる操作によって得られる交
互の、或いは相対する編目の間に補強材フィラメント糸
条を挿入させながら逐次添糸の一目形成を進行せしめる
。この場合、コ針床編針による一目形成は両針床の編針
が必らずしも交互に配列する必要はなく１相対する針が
同時に一目な層成してもよく（両面組織）％又、交互に
形成してもよ〈（リプ組織）、要は両針床の一針によっ
てできた編目の間に補強材フィラメント糸条が挿入され
れば１それにて配列形成は成立する０又−一目の大きさ
は挿入する補強材フイラメン）糸条、添糸の太さ及び后
で成形加工する成形物の形態によってフィラメント糸条
束の変形度を計算して設定しなければならない。即ち１
編目の大きいもの程変形度は大き（なる・
かくして得られｔＩｌ糸を介した補強用中間体ｆ）形態
例を閣によって説明するａ ｍＦ ／ Ｗ：Ｊは相対す
る一針床編機を使用し１添糸でリプ組織の編目を形成す
る如（繻或し補強材用フィラメント糸条を纏ＨＭ成直前
に両針床の中間に供給せしめ添糸の纒Ｉｌｌ成によって
両針床繻目の間に挿入されて得られた編地構成状態を示
すａｍに於て（１）は添糸による一方の側の針床針によ
って編成された編目であり、（８は他方の側の針床針に
よって―ｌＩＫされた編目を夫々示す。Ｑ）は補強材と
なるフィラメント糸条を示すが図で明らかの如く該糸条
（Ｊ）は両針床針によって編成された編目＜ｉ＞ ＊
ｃコ）の間に挿入される。かくして得られた編地は第Ｊ
ｌｌに示す如（添糸の編目群Ｖ＞ ＊ ＜ユ）の間に挿
入された補強材フィラメント糸条（、？）の束が平行に
配列されたシート状Ｉｌｌ或する。かかるシートは添糸
で形成された編地の性質からシート全体が伸縮性に富み
容易に変形する◎第３図は第−園に示すシーＦをその一
端をフイラメン）糸条束に対して直角方向に拡げた形態
を示すものであり、結果的に扇状の形態を呈する０但し
、この一端の拡がりの程度はＳ１述の如くフィラメント
糸条を抱含せる一目の大きさによってその最大拡がりは
決定され、それ以上の拡がりは不可能となる・このため
１編目をなるべく大きく編成することによって大きい変
形が得られるが、無暗に大きい編目を形成させることは
、１成性の問題があり、又１一方１遂に縮める個所に訃
では編目が大きいため・フィラメント糸条束の配列が不
安走となる懸念がある・そこで本発明者等は、種々検討
を加えた結果特に編目を伸ばすことによって補強材フィ
ラメント糸条束を拡げる場合の編目長から来る限定拘束
条件を解除させるため１編目を形成する添糸に弾性糸を
供給することによって編目長自体な引張り、緊張操作を
加え、かかる操作により添糸を伸長せしめ、結果的に編
目長を長くし、フィラメント糸条束の拡がりを大きくす
ることを得た。Through this operation, the reinforcing material filament threads are wrapped in the stitch group knitted by the plating threads, and the obtained filament thread aggregate is such that the filament thread spacing changes in all directions within the range angle in which the stitches can expand and contract due to the expansion and contraction of the stitches. Expansion 1
It also deforms by shrinking by 1. It is possible to form the desired I1III11 three-dimensional shape by using such an Il shape.The next question is what method is used to form an array of reinforcing material filament yarns with plating threads, but the point is that the plating threads themselves are
It is only necessary to form a stitch and incorporate a reinforcing filament yarn between the stitches, and the method for creating stitches of the plating yarn for this purpose is to use a knitting machine that requires a knitting machine with a low needle length. The plating yarn is threaded so as to form alternating stitches with each knitting needle of at least one stitch bed, and the reinforcing filament yarn is inserted between the alternating or opposing stitches obtained by such operation. At the same time, the formation of stitches of thread plating is progressed one after another. In this case, the stitch formation using the K needle bed knitting needles does not necessarily require that the knitting needles of both needle beds are arranged alternately, and one opposing needle may form a stitch layer at the same time (double-sided structure). They can also be formed alternately (rip stitch), but in short, if the reinforcing filament yarn is inserted between the stitches made by one stitch on both needle beds, the array formation is established. The size of the filament must be determined by calculating the degree of deformation of the filament bundle based on the thickness of the reinforcing filament to be inserted, the thickness of the plating, and the form of the molded product to be formed afterwards. That is, 1
The larger the stitches, the greater the degree of deformation (the thus obtained reinforcing intermediate f via the tIl yarn) is explained by Kaku. The stitches of the rip structure are formed with one plating yarn (a filament yarn for satin or reinforcing material is supplied between the stitches of both needle beds immediately before the binding HM formation, and the stitches of the lip structure are formed between the stitches of both needle beds by the plating of the plating yarn). In am, which shows the knitted fabric configuration state obtained by inserting the stitches into - IK stitches are shown respectively.Q) shows a filament yarn serving as a reinforcing material, but as is clear from the figure, the yarn (J) is a stitch <i> knitted by double bed needles *
It is inserted between c). The knitted fabric thus obtained is No. J
As shown in Ill, there is a sheet-like Ill in which bundles of reinforcing filament threads (,?) inserted between stitch groups of plating threads (V>*<Y) are arranged in parallel. Due to the nature of the knitted fabric formed with plating yarns, the entire sheet is highly stretchable and easily deforms. ◎Figure 3 shows the sheet F shown in Figure 3, with one end of the sheet being a filament) at right angles to the yarn bundle. As a result, it exhibits a fan-like shape.However, as mentioned in S1, the maximum extent of the extent of expansion at one end is determined by the size of the eye that contains the filament yarn.・For this reason, a large deformation can be obtained by knitting the first stitch as large as possible, but forming a large stitch without realizing it has the problem of monomorphism, and 1.On the other hand, since the stitches are large at the point where the stitches are finally shortened, there is a concern that the arrangement of the filament yarn bundle may become unstable.Therefore, after various studies, the present inventors have developed a reinforcing material by elongating the stitches. In order to release the restrictive constraint caused by the stitch length when expanding a filament yarn bundle, elastic yarn is supplied to the plating yarn forming the first stitch, and tension and tension operations are applied to the stitch length itself. As a result, the stitch length was increased, and the spread of the filament yarn bundle was increased.
一第ダ図は上記の如く、添糸に弾性糸を使用して補強用
フィラメント糸条束を形成する如く編成し、然る后に得
られたシートの一端を緊張さ鴛て編目長を大吉（するこ
とによってシートの蝋がりを伸ばした状態を示したもの
である口かかる添糸の使用により当初平行に配列して形
成された補強用フィラメント糸条束からなる中間体シー
トは、その変形度が非弾性糸に較べてはるかに大きく、
成形加工物の取り得る形状の自由度が拡大される。As shown in the first diagram, the elastic yarn is used as the plating yarn to form a reinforcing filament yarn bundle, and one end of the obtained sheet is then stretched to determine the stitch length. (This shows the state in which the sheet is stretched out by waxing.) The intermediate sheet consisting of bundles of reinforcing filament yarns, which were initially arranged in parallel by the use of plating threads, has a degree of deformation. is much larger than that of inelastic yarn,
The degree of freedom in the shape of the molded product is expanded.
実施例
ポリウレタン系合成繊維からなるＪＯ４０弾性糸を添糸
に補強材として挿入する糸条に炭素繊維Ｊ０００本（１
本の太さは平＊＃１１ｍ）のフィラメント糸条を撰び、
シリンダーとダイアルとで構成される１針床光編機（針
密度１６本／インチ）を用い編目長（編目をコース方向
に引張り伸した時の長さ、）が＃Ｖ臘となる如く添糸の
編成張力及びカム設定をして添糸をリプ組織に編成、同
時に炭素繊維フィラメント糸条をシリンダー及びダイア
ル針床の間に供給せしめて両針床針によって編成された
Ｓ目の間に挿入させて円装置の編地を得た・次いでこの
編地をタテ方向に切開してシート状となし参枚重ねた后
１第１１ｇに示す如くその一端を編目長が添糸が伸長し
ない時の一倍となる様にシートの両サイドより緊張せし
めて拡げて金量に■定し１然る后にマトリックスとなる
エポキシ系樹脂を流込み／ＪＯＣにて熱硬化処理を施し
た結果１炭素繊維がダｌ容量襲の扇置板状コン〆ジット
が得られた◎Example J040 elastic yarn made of polyurethane synthetic fiber is inserted into the plating as a reinforcing material. J000 carbon fibers (1
Select a filament yarn with a book thickness of 11 m (flat*#11 m),
Using a 1-needle bed optical knitting machine (needle density: 16 needles/inch) consisting of a cylinder and a dial, the stitch length (the length when the stitch is stretched in the course direction) is made with #V thread. The knitting tension and cam settings are set to knit the plating yarn into a lip structure, and at the same time, the carbon fiber filament yarn is fed between the cylinder and the dial needle bed, and is inserted between the S stitches knitted by the needles on both needle beds to create a circle. The knitted fabric of the device was obtained.Then, this knitted fabric was cut in the vertical direction to form a sheet, and after stacking the sheets, as shown in 1. Tighten and spread the sheet from both sides so that the amount of gold is determined. After that, pour in the epoxy resin that will become the matrix. As a result of heat curing at JOC, the carbon fibers become dull. A fan-shaped plate-shaped conduit with increased capacity was obtained◎
【図面の簡単な説明】[Brief explanation of the drawing]
第１図は補強材たるフィラメント糸条を添糸の編目によ
って抱含した状態を示す図、第一図は第１Ｗｉに示す一
目構成によって作成した中間体シートの外観図、第５ｗ
は第ＪＩＩに示す中間体シートの一端を編目長が添糸の
伸長なく最大となる如く拡大せしめた時の中間体シート
の形状を、第＊＊ｔ！同じく添糸が伸長することによっ
て編目長が長くなり、結果的にシートの拡がりが大きく
なった中間体シートの形状を夫々示す。Fig. 1 is a diagram showing a state in which the filament yarn serving as a reinforcing material is included in the stitches of the plating thread, Fig. 1 is an external view of an intermediate sheet made by the one-shot configuration shown in Fig. 1Wi, Fig. 5W
The shape of the intermediate sheet when one end of the intermediate sheet shown in No. JII is expanded so that the stitch length is maximized without elongation of the plating yarn is shown in No. **t! Similarly, the shape of the intermediate sheet is shown in which the stitch length becomes longer due to elongation of the plating yarn, and as a result, the spread of the sheet becomes larger.