Patent · US Expired

Intermittent motion drive assembly including speed reduction

US5221237A · kind A · utility

4Cited by
6References
18Claims
0Family size

Inventor

Key dates

Filing dateAug 27, 1992
Grant dateJun 22, 1993
Priority date
Expiry dateAug 27, 2012

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19555
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A cylindrical member driven by a planetary gear arrangement traverses an epitrochoid path to periodically enter a radial slot in an arm or disc rotating the arm or disc through 180.degree.. By selecting the parameters appropriately the cylindrical member is caused to enter and leave the radial slot along a tangential path such that no first or second derivative discontinuities are present in the motion of the arm or disc. Several embodiments are disclosed for achieving either one or two incremental rotations of an output shaft for a single revolution of an input shaft with various speed reducing gear trains.

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