Patent · US Active

Plate-link chain

US7937925B2 · kind B2 · utility

1Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 21, 2008
Grant dateMay 10, 2011
Priority date
Expiry dateJul 28, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49874
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A drive chain suitable for use in a continuously variable transmission of a motor vehicle, the transmission having two pairs of spaced drive members about which the chain passes to transfer torque from one drive member to the other. The chain includes a plurality of link elements that include spaced, side-by-side plate links. The plate links include openings in which pairs of parallel rocker members are disposed for relative rocking movement of at least one rocker member about its longitudinal axis. A method for stretching the chain is also disclosed, in which areas of some of the plate links are plastically deformed by stretching the chain before the chain is put to use.

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