Patent · US Expired

Cluster of molded gears with helical teeth

US5012691A · kind A · utility

11Cited by
8References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 15, 1986
Grant dateMay 7, 1991
Priority date
Expiry dateOct 15, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19953
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

This cluster of moulded gears with the helical teeth, comprising a group of coaxial pinions of which the teeth have the same helical sense and the same pitch, is characterized in that, Mrn and Mri designating the real moduli of any pinions respectively of rank n and of rank i of the group, Zn and Zi designating the numbers of teeth of the said pinions, and .beta.n and .beta.i designating their helical angles, the following relationship exists between these different parameters: EQU sin .beta.n=sin .beta.i Mri Zn/Mrn Zi

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