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    • 1. 发明授权
    • Hybrid spring for bicycle derailleurs
    • 混合弹簧用于自行车拨链器
    • US6093122A
    • 2000-07-25
    • US5214
    • 1998-01-09
    • Scott A. McLaughlinBrian T. JordanKevin F. WeslingJohn D. Cheever
    • Scott A. McLaughlinBrian T. JordanKevin F. WeslingJohn D. Cheever
    • B62M9/1242B62M9/1248B62M9/127F16H63/00F16H7/00
    • B62M9/1248B62M9/1242
    • A parallelogram link mechanism of a bicycle derailleur has a coil spring tensioned from a first axis of the parallelogram to another axis thereof that is diametrically opposed to the first axis. The coil spring exerts a primary spring force against the rider-supplied derailleur actuation force throughout the actuation range of the derailleur. A secondary member exerts a secondary force throughout a portion of the actuation range of the derailleur, producing a substantially constant resultant actuation force experienced by the rider. The secondary member can take various forms, including an abutment member which selectively abuts the coil spring at an angle to the spring axis; a second spring internal to the first; a member which is attached to spaced-apart coils of the coil spring to limit their linear expansion; and an internal member which limits constriction of a segment of the coil spring inwardly toward the spring axis.
    • 自行车拨链器的平行四边形连杆机构具有从平行四边形的第一轴线向与第一轴线径向相对的另一轴线张紧的螺旋弹簧。 螺旋弹簧在拨链器的整个致动范围内施加抵抗骑车人提供的拨链器致动力的主弹簧力。 辅助构件在拨链器的致动范围的整个部分中施加次级力,从而产生驾驶员经历的基本恒定的结果致动力。 辅助构件可以采取各种形式,包括以与弹簧轴成一定角度选择性地邻接螺旋弹簧的邻接构件; 第一个弹簧内部的第二个弹簧; 连接到螺旋弹簧的间隔开的线圈以限制其线性膨胀的构件; 以及内部构件,其限制螺旋弹簧的段的向内朝向弹簧轴线的收缩。