CRANK ARM FOR A BICYCLE PEDAL CRANK SYSTEM AND A METHOD FOR ITS PRODUCTION
    1.
    发明申请
    CRANK ARM FOR A BICYCLE PEDAL CRANK SYSTEM AND A METHOD FOR ITS PRODUCTION 审中-公开
    用于自行车踏板系统的起重臂及其制造方法

    公开(公告)号:US20150266541A1

    公开(公告)日:2015-09-24

    申请号:US14661022

    申请日:2015-03-18

    申请人: Holger Faupel

    发明人: Holger Faupel

    摘要: A crank arm for a bicycle crank arm system has an elongated hollow core (30) made of a first fiber-reinforced plastic and having, in the final assembly position of the pedal crank system, a laterally located, exterior front face, a rear face opposed thereto and two side faces (102) that connect the front face and rear face with one another, and having at its axial ends (104, 105) metallic shaft sleeves (20, 22), oriented parallel to one another and to the side faces (102), for accommodating a bottom bracket shaft or a pedal axle. The hollow core (30) is encased by a second fiber-reinforced plastic. A carbon fiber thread (50) is wrapped multiple times axially around the hollow core (30) and is in contact with the axially convex side surfaces. The hollow core (30) is bonded to the carbon fiber thread (50).

    摘要翻译: 用于自行车曲柄臂系统的曲柄臂具有由第一纤维增强塑料制成的细长中空芯(30),并且在踏板曲柄系统的最终组装位置中具有横向定位的外表面,后表面 与前表面和后表面相连并且在其轴向端部(104,105)处具有金属轴套(20,22)的两个侧面(102),金属轴套(20,22)彼此平行且相对于侧面 面(102),用于容纳底托架轴或踏板轴。 中空芯(30)被第二纤维增强塑料包住。 碳纤维线(50)围绕中空芯(30)轴向多次被缠绕并且与轴向凸起的侧表面接触。 中空芯(30)与碳纤维线(50)接合。