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    • 1. 发明授权
    • Automatic derailleur
    • 自动拨链器
    • US06692389B2
    • 2004-02-17
    • US10154216
    • 2002-05-22
    • Hwa-Yung Yin
    • Hwa-Yung Yin
    • F16H6130
    • B62M9/122B62M25/08F16H7/06F16H61/30
    • An automatic derailleur device comprises an arm, a sprocket roller meshed with one of a set of different-sized sprocket wheels on, a control member, a tension wheel meshed with a sprocket chain and secured to the arm, a cylinder including a shaft secured to the arm, an intermediate collar on the shaft, an elastic member on the shaft and biased between the collar and the cylinder, and a hollow cylindrical block with the shaft passed through, and a pump in the cylinder and including a piston rod rotatably coupled to the sprocket roller, a plurality of blades extended from the piston rod, and a cylindrical passage formed between the cylinder and the block. The sprocket chain is shiftable from a meshing with a largest sprocket wheel to a smallest sprocket wheel automatically as the bicycle is accelerating from a stop or low speed to a high speed and vice versa.
    • 一种自动拨链器装置,包括一个臂,一个与一组不同大小的链轮中的一个啮合的链轮,控制构件,与链轮链啮合并固定到臂的张力轮,包括固定到 所述臂,所述轴上的中间套环,所述轴上的弹性构件并且在所述套环和所述气缸之间被偏置,以及具有所述轴穿过的中空圆柱形块,以及所述缸中的泵,并且包括可旋转地联接到 链轮,从活塞杆延伸的多个叶片,以及形成在缸体和块体之间的圆柱形通道。 当自行车从停止或低速加速到高速时,链轮链可以自动从最大链轮啮合到最小的链轮,反之亦然。