PROBLEM TO BE SOLVED: To provide conformal clearance fit fasteners, fastener systems, methods that provide electrical contact and conductivity with composite structures, such as CFRP structures.SOLUTION: A fastener 10 includes an elongated shaft 14 having a first end 16, a second end 18, and a shaft body 20, a head portion 22, and a threaded portion 42. At least one inner feed channel extends through the head portion and the shaft body and terminates proximal to the threaded portion. The fastener has a plurality of flutes 80 formed along and circumferentially spaced around an outer surface 64 of the shaft body and an outer surface 32 of the head portion. Each flute has a first end 82 and extends from a first location 84 proximal to the threaded portion, along the outer surface of the shaft body, and radially outward along the outer surface of the head portion. The fastener further has one or more lateral feed channels formed laterally through the shaft body and connecting the inner feed channel to at least two opposing flutes on the outer surface of the shaft body.SELECTED DRAWING: Figure 1A

    【課題】CFRP構造体などとの電気的接触及び伝導性をもたらす、隙間嵌め留め具、留め具システム、及び方法を提供する。【解決手段】留め具10は、第1端部16、第2端部18、及び、シャフト本体部20を有する長状シャフト14と、ヘッド部22と、ネジ部42とを含む。少なくとも1つの内部供給路が、ヘッド部及びシャフト本体部を通って延び、ネジ部に隣接する位置で終結する。留め具は、シャフト本体部の外面64及びヘッド部の外面32に周方向に互いに離間して形成された複数の溝80を有する。各溝は、第1端部82を有し、ネジ部に隣接する第1位置84から、シャフト本体部の外面に沿って延びるとともに、ヘッド部の外面に沿って径方向外方に延びる。留め具は、シャフト本体部を横切って形成されるとともに、其々が、内部供給路を、シャフト本体部の外面の少なくとも2つの対向する溝に接続している、1つ又は複数の横供給路をさらに有する。【選択図】図1A


    Access

    Download


    Export, share and cite



    Title :

    CONFORMAL CLEARANCE FIT FASTENER, FASTENER SYSTEM, AND METHOD FOR COMPOSITE STRUCTURES


    Additional title:

    複合構造体のためのコンフォーマル隙間嵌め留め具、留め具システム、及び、方法


    Contributors:

    Publication date :

    2017-10-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



    CONFORMAL CLEARANCE FIT FASTENER, FASTENER SYSTEM, AND METHOD FOR COMPOSITE STRUCTURES

    GREEGOR ROBERT B / LE QUYNHGIAO N / WHITING BRENT A et al. | European Patent Office | 2020

    Free access

    Conformal clearance fit fastener, fastener system, and method for composite structures

    GREEGOR ROBERT B / LE QUYNHGIAO N / WHITING BRENT A et al. | European Patent Office | 2019

    Free access

    CONFORMAL CLEARANCE FIT FASTENER, FASTENER SYSTEM, AND METHOD FOR COMPOSITE STRUCTURES

    GREEGOR ROBERT B / LE QUYNHGIAO N / WHITING BRENT A et al. | European Patent Office | 2017

    Free access

    Expandable, resin filled fastener, fastener system, and method for composite structures

    LE QUYNHGIAO N / GREEGOR ROBERT B / WHITING BRENT A | European Patent Office | 2018

    Free access

    EXPANDABLE, RESIN FILLED FASTENER, FASTENER SYSTEM, AND METHOD FOR COMPOSITE STRUCTURES

    LE QUYNHGIAO N / GREEGOR ROBERT B / WHITING BRENT A | European Patent Office | 2017

    Free access