Patent · US Expired

Stepless speed change device

US4697469A · kind A · utility

14Cited by
23References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 26, 1986
Grant dateOct 6, 1987
Priority date
Expiry dateMar 26, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/2164
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A stepless speed change device comprising an internally toothed ratchet formed in an inner circumference of a driving rotary body, a floating ring having an inner diameter smaller than a root diameter of teeth of the internally toothed ratchet and arranged in floating condition in side-by-side relation to the internally toothed ratchet, and a plurality of pawls whose distal ends engage the teeth of the internally toothed ratchet and inscribe the floating ring. Bottoms of the pawls are pivotally connectd to a driven rotary body rotatably provided on an eccentric cam assembly whose eccentricity is adjustable.

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