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    • 2. 发明申请
    • RIGHT CRANK ARM ASSEMBLY FOR A BICYCLE AND CRANK ARM THEREOF
    • 用于自行车和起重臂的右起重臂组件
    • US20080028887A1
    • 2008-02-07
    • US11832215
    • 2007-08-01
    • Maurizio VALLEPaolo PASQUA
    • Maurizio VALLEPaolo PASQUA
    • G05G1/14B62K23/08
    • B62M3/00B62M9/105Y10T74/2164Y10T74/2165
    • A right crank arm assembly for a bicycle, comprises a right crank arm, a first annular element directly coupled with said crank arm at least one first coupling portion of said first annular element and at least one second annular element coupled with said crank arm and of a smaller size than said first annular element. The first annular element comprises a toothing that extends radially towards the outside along a primitive circumference having a predetermined diameter. Said at least one first coupling portion is entirely contained in a first area extending radially towards the outside starting from an ideal circumference having a diameter at least equal to ⅔ of said predetermined diameter. Such an annular element constitutes the front sprocket of the crank arm assembly of the present invention and consists of a simple toothed band. Such a front sprocket is particularly light in weight.
    • 用于自行车的右曲柄臂组件包括右曲柄臂,与所述曲柄臂直接联接的第一环形元件,所述第一环形元件的至少一个第一联接部分和与所述曲柄臂连接的至少一个第二环形元件 比所述第一环形元件小的尺寸。 第一环形元件包括沿着具有预定直径的原始圆周径向向外延伸的齿。 所述至少一个第一联接部分完全包含在从具有至少等于所述预定直径的2/3的直径的理想圆周开始的径向向外延伸的第一区域中。 这种环形元件构成本发明的曲柄臂组件的前链轮,并且由简单的带齿组成。 这样的前链轮重量特别轻。
    • 3. 发明申请
    • RIGHT CRANK ARM ASSEMBLY FOR A BICYCLE AND CRANK ARM AND FRONT SPROCKET
    • 用于自行车和起重机臂和前端口的右起重臂组件
    • US20080202284A1
    • 2008-08-28
    • US11832205
    • 2007-08-01
    • Maurizio VALLEPaolo PASQUA
    • Maurizio VALLEPaolo PASQUA
    • B62M3/00F16H55/30
    • B62M3/00B62M9/105F16H55/30Y10T74/2164Y10T74/2165
    • A right crank arm assembly for a bicycle, comprises a right crank arm and at least one front sprocket coupled with the crank arm at at least one coupling portion of the crank arm. The front sprocket has an inner side adapted, in use, to face towards the frame of the bicycle and an outer side opposite the inner side. The assembly comprises at least one first crank arm element which acts in contact with the front sprocket on one of said sides and at least one second crank arm element which acts in contact with the front sprocket on the other of said sides. The contact action of the crank arm elements on the two opposite sides of the front sprocket prevents the twisting deformation of the front sprocket during pedaling. Such a deformation would cause a reduction in the transmission efficiency of the right crank arm assembly.
    • 用于自行车的右曲柄臂组件包括右曲柄臂和在曲柄臂的至少一个联接部分处与曲柄臂联接的至少一个前链轮。 前链轮具有在使用中适于面向自行车的框架的内侧和与内侧相对的外侧。 所述组件包括至少一个第一曲柄臂元件,所述至少一个第一曲柄臂元件在所述侧边中的一个上与所述前链轮接触,以及至少一个第二曲柄臂元件,所述至少一个第二曲柄臂元件在所述侧面中的另一个上与前链轮接触。 曲柄臂元件在前链轮的两个相对侧上的接触动作防止了前链轮在蹬踏时的扭转变形。 这种变形将导致右曲柄臂组件的传动效率降低。