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    • 7. 发明授权
    • Convertible bicycle hub
    • 可转换自行车轮毂
    • US4154327A
    • 1979-05-15
    • US846773
    • 1977-10-31
    • John D. Haeussinger
    • John D. Haeussinger
    • B62K25/02F16D41/30F16D41/12
    • B62K25/02F16D41/30
    • A doubly convertible bicycle wheel hub assembly has an axle housing containing sealed dustproof precision bearings with the axle journalled therein, the ends of the axle housing having annular retainers thereon either one of which can be replaced by a specialized retainer-freewheel mount element which, when the freewheel mechanism is mounted thereto, converts the hub assembly for use on the rear wheel of a bicycle. The freewheel assembly itself utilizes an annular sprocket element for the bicycle chain drive which is very simply removable and replaceable by removing a threaded retainer ring such that the chain drive ratio can be altered without replacing the entire freewheel mechanism.
    • 双重敞篷式自行车轮毂组件具有轴壳体,其包含密封的防尘精密轴承,轴颈轴颈安装在其中,车轴壳体的端部具有环形保持器,其中任一个可由专门的保持器自由轮安装元件代替, 自由轮机构安装到其上,转换轮毂组件以用于自行车的后轮上。 飞轮组件本身利用用于自行车链条驱动器的环形链轮元件,其通过移除螺纹保持环非常简单地可移除和更换,使得可以在不更换整个自由轮机构的情况下改变链传动比。