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    • 9. 发明申请
    • EXTENSION BRACKET FOR BICYCLE REAR DERAILLEUR
    • BICYCLE REAR DERAILLEUR的扩展支架
    • WO1982000274A1
    • 1982-02-04
    • PCT/US1981000960
    • 1981-07-17
    • BYTHEWAY R
    • B61L13/00
    • B62M9/125
    • Extension bracket for lowering the rear derailleur assembly of a bicycle so that an oversized, high torque gear can be added to the rear gear cluster of the bicycle. With reference to Fig. 3 of the drawing, said bracket includes a plate (10) provided with a pair of elongated, parallel slots (14 and 16). The bicycle's rear axle stud (36) and nut (38) adjustably engage an upper portion of the wider slot (14), and a nut and bolt (18) adjustably attach the bicycle's rear derailleur assembly (40) to a lower portion of the wider slot (14). Narrow slot (16) provides supplemental adjustable attachment of the plate (10) to the bicycle's frame (32) and rear derailleur assembly (40) by means of a pair of fasteners (20 and 22). When the extension bracket is in place an oversized gear (46) can be accommodated by the extended derailleur assembly. The gear (46) greatly increases the torque that can be developed at the rear wheel and thus enhances the hill climbing capabilities of the bicycle.
    • 用于降低自行车的后拨链器组件的延伸支架,使得可以将大尺寸的高扭矩齿轮添加到自行车的后齿轮组。 参考图1。 如图3所示,所述支架包括设置有一对细长的平行槽(14和16)的板(10)。 自行车的后轴螺栓(36)和螺母(38)可调节地接合较宽的槽(14)的上部,并且螺母和螺栓(18)可调节地将自行车的后拨链器组件(40)附接到 较宽的槽(14)。 窄槽(16)通过一对紧固件(20和22)提供板(10)与自行车框架(32)和后拨链器组件(40)的补充可调节附接。 当延伸支架就位时,扩大的拨链器组件可容纳超大齿轮(46)。 齿轮(46)大大地增加了可以在后轮处产生的扭矩,从而提高了自行车的爬坡能力。