Patent · US Expired

Adjustable leaf spring suspension for flexible cutterbar

US4599852A · kind A · utility

55Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 24, 1985
Grant dateJul 15, 1986
Priority date
Expiry dateJul 24, 2005

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA01D41/14
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A header for a combine or the like having a cutterbar assembly which is vertically flexible relative to the main frame of the header. Leaf springs are fixedly connected to the header frame and extend forwardly to a sliding connection with the cutterbar assembly to exert a counterbalancing upward force thereon. Longitudinally reciprocable adjustment bars captive on threaded adjustment bolts are mounted on the main frame in association with each spring for varying the upward force being exerted thereby.

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