Shifting apparatus for a bicycle

Details Shifting apparatus for a bicycle Shifting apparatus for a bicycle

1995-02-28

1998-09-08

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74489, B60K 2002, B62M 2504

Patent

active

058029230

ABSTRACT:
A shifting apparatus for a bicycle includes a takeup element for winding and unwinding a control cable, a first shift member supported to be rotatable substantially along an outer periphery of a handlebar for rotating the takeup element, a second shift member supported by the handlebar for rotating the takeup element backward, and a positioning mechanism for retaining the takeup element in a selected angular position. An interlock mechanism is provided for interlocking the first shift member and takeup element, such that the takeup element is not always rotatable with the first shift member. This interlock mechanism allows the first shift member to remain still when the takeup element is rotated backward in an unwinding direction. Further, the shifting apparatus is constructed at low cost, with the first shift member having an axis of rotation extending at an angle to a handlebar axis.

REFERENCES:
patent: 4325267 (1982-04-01), Kojima
patent: 5577413 (1996-11-01), Tagawa et al.

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