Bicycle derailleur with rotation resistance

Bicycle derailleur with rotation resistance

CN
  • CN 102,442,403 B
  • Filed: 09/28/2011
  • Issued: 08/27/2014
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
Patent Images

1. a bicycle speed-varying unit, described bicycle speed-varying unit comprises:

  • Base component, described base component is suitable for being mounted to bicycle;

    Movable member, described movable member is attached to base component movably;

    Chain guide, described chain guide is attached to movable member, for rotating around rotation axis;

    Resistance applies element, described resistance applies element and comprises that friction applies member and free-wheel clutch, wherein, described free-wheel clutch applies resistance along predetermined direction to rotatablely moving of chain guide, and described friction applies member by rotatablely moving of free-wheel clutch applied friction drag and rotatablely moving of chain guide applied to friction drag;

    Draught control element, described draught control element moves between primary importance at least and the different second place;

    Wherein, being attached to resistance applies element described draught control element operation, so that in draught control arrangements of elements during in primary importance, resistance applies element rotatablely moving of chain guide is applied to the first resistance, and in draught control arrangements of elements during to the second place, resistance applies element rotatablely moving of chain guide is applied to the second different resistances.

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