Machine element or mechanism – Control lever and linkage systems – Hand operated
Reexamination Certificate
2005-03-08
2005-03-08
Bucci, David A. (Department: 3682)
Machine element or mechanism
Control lever and linkage systems
Hand operated
C074S501600, C074S489000
Reexamination Certificate
active
06862948
ABSTRACT:
A shift lever for a bicycle having a derailleur, includes a housing including a clamp head for mounting the housing on a handlebar of the bicycle and a cavity therein; a gear connected with the cable, rotatably mounted in the cavity and having first and second sets of teeth; a major pawl element mounted to the housing and biased by a spring into engagement with the first set of teeth; a main lever rotatably mounted to the housing, having a thumb engaging end and a substantially common axis of movement with a person's thumb during a shifting operation, such that the main lever moves in a natural direction of movement of the thumb to tighten a grip of the person on the handlebar on which the shift lever is mounted; and a minor pawl element for engaging the second set of teeth.
REFERENCES:
patent: 4343201 (1982-08-01), Shimano
patent: 5012692 (1991-05-01), Nagano
patent: 5203213 (1993-04-01), Nagano
patent: 5303608 (1994-04-01), Iwasaki
patent: 5768945 (1998-06-01), Ose
patent: 6095010 (2000-08-01), Arbeiter et al.
patent: 6155132 (2000-12-01), Yamane
patent: 6305237 (2001-10-01), Ichida
patent: 20010023621 (2001-09-01), Blaschke et al.
Bucci David A.
Goldberg Richard M.
Van Pelt Bradley J.
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