Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1997-04-03
1999-07-13
Jeffery, John A.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
7447313, 74489, 74527, 474128, B60K 2000, G05G 1100, F16H 722
Patent
active
059211407
ABSTRACT:
An index shifter (1) for a bicycle transmission is placed on a handle bar (3). The index shifter has a housing (2) and a notch element (4) with notches (5), which notch element is connected with a rotatable handgrip and with one of the ends of a control cable (7). The housing has an oblong annular space in which a combination notch spring (20) is placed. This spring supports itself on the housing with two feet (24) and acts in concert with the notch element (4) through a projection (23). The combination notch spring (20), composed of a form spring (21) and a leaf spring (22), permits quiet shifting and supplies sufficiently high pre-tension spring power throughout the service life of the combination notch spring (20).
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patent: 5618241 (1997-04-01), Ose
Charles Marcus
Fichtel & Sachs AG
Jeffery John A.
LandOfFree
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