Patent · US Expired

Variable ratio clutch lever

US4793456A · kind A · utility

5Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 1987
Grant dateDec 27, 1988
Priority date
Expiry dateMar 31, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20558
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An apparatus and a method are disclosed for varying the effective length of the levers which actute a collector ring in a clutch. Each of the levers includes a pair of noses which are angled toward the inner end of the levers and toward the collector ring to provide a point contact which moves along the surface of the nose as the levers are rotated by a throw-out bearing. Thus, the force required to actuate the throw-out bearing and/or the force applied to a pressure plate can be varied in accordance with the geometry selected for the noses and the collector ring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.