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METHOD FOR LAMINATING FIBER-REINFORCED THERMOPLASTIC RESIN PREPREG UPDATE_EN meetings

Foreign code F190009878
File No. 2117
Posted date Aug 20, 2019
Country WIPO
International application number 2011JP057579
International publication number WO 2011125596
Date of international filing Mar 28, 2011
Date of international publication Oct 13, 2011
Priority data
  • P2010-080046 (Mar 31, 2010) JP
Title METHOD FOR LAMINATING FIBER-REINFORCED THERMOPLASTIC RESIN PREPREG UPDATE_EN meetings
Abstract Disclosed is a method for achieving lamination of the near net shape of a molded article which has a high yield of material and is strong and rigid. The near net shape of the molded article is sewn using prepreg tapes (1) which are composite materials composed of reinforced fibers and thermoplastic resin. For the strength and rigidity as the molded article, the prepreg tapes (1) the directions of the fiber arrays of which are different are arranged within one layer in consideration of the directions of the fiber arrays and the direction of an external force. Moreover, performed is a stitching method wherein the stitching manner is varied while attaching the prepreg tapes (1), thereby sewing the near net shape of the molded article consisting of a multilayer structure.
Outline of related art and contending technology BACKGROUND ART
Continuous reinforcing fibers impregnated with a thermoplastic resin fiber reinforced thermoplastic of the pre-preg layers in a constant direction of the reinforcing fibers are arranged in layers in a layered direction and, on the stitching to be integral with the multi-axial sheet manufacturing step, the multi-axial cut or laminated sheet and the mold installed in a predetermined shape and a shaping step, the predetermined shape of the intermediate body in the mold and placed in the placing step, the intermediate installation step in the mold in an intermediate installed to press the fiber-reinforced thermoplastic composite material of thermoplastic resin is heated to a temperature above the melting point of after molding, the thermoplastic resin is cooled to a temperature lower than the melting point of the molding step, a method of molding a fiber-reinforced thermoplastic composite material is disclosed (for example see Patent Document 1).
In addition, the invention of the patent document 1, the stitching stacked in a sheet form, or a laminate sheet to provide a predetermined shape is carried out in the state.
Of a predetermined shape in the production of a fiber reinforced plastic composite material, the reinforcing fibers on a substrate to be manufactured using the composite material and the shape of the desired point determined in accordance with the required characteristics of any of a plurality of reinforcing fibers in the direction of the directional material and have any desired amount so that the processing of the embroidery, the embroidery are subjected to the substrate as necessary from the non-embroidery portion is removed and, which is then hand lay-up as a core material such as a general method of fiber-reinforced plastic composite material disclosed in the method (for example see Patent Document 2).
Scope of claims (In Japanese)[請求項1]
 シート状の基材上または既にできている層の上に、繊維強化熱可塑性樹脂プリプレグテープを任意の向き及び任意の位置に着接しながらステッチングをし、任意の長さに裁断して一つの繊維強化熱可塑性樹脂プリプレグテープの縫着を完了させる手順からなる繊維強化熱可塑性樹脂プリプレグテープ縫着手順を、各層における任意の位置から実施し、前記繊維強化熱可塑性樹脂プリプレグテープ縫着手順を繰り返しながら順次繊維強化熱可塑性樹脂プリプレグテープを縫着させて平面状の一つの層を形成し、前記層の上部に更に次の平面状の層を前記繊維強化熱可塑性樹脂プリプレグテープ縫着手順に従って形成して積層し、順次次の平面状の層を形成しながら積層して多層構造体からなる所定形状を有する成形品のニヤーネットシェイプを縫成することを特徴とする繊維強化熱可塑性樹脂プリプレグの積層方法。

[請求項2]
 成形品として必要な強度及び剛性を具備するように繊維強化熱可塑性樹脂プリプレグテープの配置を行う方法として、成形品に対して引張力のかかる方向と繊維強化熱可塑性樹脂プリプレグテープの繊維配列方向とを一致させる部位を設ける配置方法、前記成形品に対して引張力のかかる方向と繊維強化熱可塑性樹脂プリプレグテープの繊維配列方向とが直角な位置関係となる部位を生じさせない配置方法、隣接する2つの異なる繊維配列方向の繊維強化熱可塑性樹脂プリプレグテープの突合せ部位の同一層内の狭間部位や、前記突合せ部位の上層及び/または下層で隣接する前記プリプレグテープを跨設させて繊維強化熱可塑性樹脂プリプレグテープを配置する配置方法などの方法の中から少なくとも一つの方法を一つの層内または複数の層内で織り込むことを特徴とする請求項1に記載の繊維強化熱可塑性樹脂プリプレグの積層方法。

[請求項3]
 成形品として必要な強度及び剛性を具備するようにステッチングを行う方法として、層間剥離を生じやすい部位や変形しやすい部位に縫い糸の間隔を縮めて集中的にステッチングすることを特徴とする請求項1または2に記載の繊維強化熱可塑性樹脂プリプレグの積層方法。

[請求項4]
 シート状の基材が、繊維強化熱可塑性樹脂プリプレグテープを構成する熱可塑性樹脂と同一の材質からなる、プラスチックシート、プラスチックフィルム、織物、編物、組物、マット材、またはステッチングシートのいずれかであることを特徴とする請求項1乃至3のいずれかに記載の繊維強化熱可塑性樹脂プリプレグの積層方法。

[請求項5]
 成形品のニヤーネットシェイプ縫成過程におけるステッチングを、ステッチングの縫いデータ、及びプリプレグテープの配置の位置データ並びに裁断位置データを含む制御データに基づいたプログラムに従って作動する、X方向及びY方向に直線移動する被ステッチング物の移送装置を具備した刺繍用ミシンを使用して行うことを特徴とする請求項1乃至4のいずれかに記載の繊維強化熱可塑性樹脂プリプレグの積層方法。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • HIROSHIMA PREFECTURE
  • TOKAI INDUSTRIAL SEWING MACHINE CO., LTD.
  • Inventor
  • SHIMOHARA Ichiro
  • IKEDA Shin-ya
  • MATSUBA Akira
  • KONO Yosuke
  • NISHIDA Hironori
  • KONDOU Tetsuro
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PE PG PH PL PT RO RS RU SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ MD RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG
Reference ( R and D project ) Hiroshima Prefectural Technology Research Institute

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