The invention relates to the technical field of bicycles, in particular to a carbon fiber frame base material which comprises a base material body provided with a reinforcing part. First reinforcing ribs are distributed on the inner surface of the reinforcing part, the first reinforcing ribs extend in the radial direction and/or the circumferential direction of the inner surface of the reinforcing part, the carbon fiber thickness of the base material body is M, and M belongs to [0.8 mm, 5mm]; the thickness of the first reinforcing rib is m, and m belongs to [1.5 mm, 10 mm]; the ratio of the first reinforcing ribs to the inner surface area of the reinforcing part where the first reinforcing ribs are located is reinforcing density Q, Q = X/(M * m), and X is an area ratio coefficient; m * m belongs to [1.2, 20), and X belongs to [0.4, 16]; m * m belongs to [20, 30], and X belongs to [4, 21]; m * m belongs to [30, 50], and X belongs to [9, 30]; the frame applying the base material comprises a seat tube, a head tube, an upper tube and a lower tube, and at least one tube body applies the base material. According to the carbon fiber frame base material provided by the invention, the reinforcing ribs are additionally arranged on the reinforcing parts so as to adapt to the difference requirement of local rigidity, and the difficulty of demolding is prevented from being increased by reasonably selecting the reinforcing density and reducing the complexity of the reinforcing rib structure.

    本发明涉及自行车技术领域,特别涉及一种碳纤维车架基材,包括设有加强部的基材本体;所述加强部内表面布设有第一加强筋,第一加强筋延加强部的内表面径向和/或周向延申,其基材本体碳纤维厚度为M,M∈[0.8mm,5mm];其加第一强筋厚度为m,m∈[1.5mm,10mm];第一加强筋所占其所在加强部的内表面积的比例为加强密度Q,Q=X/(M*m),X为面积占比系数;M*m∈[1.2,20),X∈[0.4,16];M*m∈[20,30),X∈[4,21];M*m∈[30,50],X∈[9,30];应用该基材的车架,包括座管、头管、上管及下管,至少一管体应用该基材。本发明提供的碳纤维车架基材,通过在加强部增设加强筋以适应局部刚度的差异要求,通过合理选择加强密度,降低加强筋结构的复杂程度,避免增加脱模的难度。


    Access

    Download


    Export, share and cite



    Title :

    Carbon fiber frame base material and frame


    Additional title:

    一种碳纤维车架基材及车架


    Contributors:
    CHEN JINSONG (author) / YANG ZHIYI (author) / CAO YUXUAN (author)

    Publication date :

    2024-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES



    Frame forming method, carbon fiber frame and bicycle

    TAN YONGFENG | European Patent Office | 2024

    Free access

    Carbon fiber bicycle frame provided with filling material

    GAO YONGJIAN | European Patent Office | 2015

    Free access

    FIBER-REINFORCED COMPOSITE MATERIAL FRAME

    KAWAMURA TSUTOMU / KODAMA YUKI / SUGIYAMA TETSUYA et al. | European Patent Office | 2022

    Free access

    FIBER-REINFORCED COMPOSITE MATERIAL FRAME

    KAWAMURA TSUTOMU / KODAMA YUKI / NISHIDA KENJI et al. | European Patent Office | 2022

    Free access

    FIBER-REINFORCED COMPOSITE MATERIAL FRAME

    KAWAMURA TSUTOMU / SUGIYAMA TETSUYA | European Patent Office | 2022

    Free access