Patent ID: 6354971
Filing Date: 2002-03-12
Classification: B62M

Abstract:
A derailleur for moving a chain from one location to another while maintaining parallel alignment to a set of gears mounted to a cycle, comprising:a) a first and second rigid segment, parallel to each other, where the first segment is fixed to the cycle and the second segment is free to traverse from a first to a second position; b) first linking means, coupled between the first and second segments, for linking the first and second rigid segments together, and designed to move from the first position to the second positions; and c) second linking means, coupled between the first and second segments and spaced from the first linking means in about a parallel position, for linking the first and second rigid segments together, and designed for resiliently biasing the derailleur into the first position and for resiliently bending into the second position; and d) the first link being rotatably coupled to the first and second rigid segments through a first and second pivot pin respectively.