Knife drive
AssigneeCanadian CoOperative Implements Limited
InventorsWilliam Rempel, Bouko J. Kor
Life of this patent
Estimating the term…
Abstract
Hinged tables for swathers usually are provided with individual knife sections and the center section of this knife is difficult to drive. This invention eliminates the necessity for a center section drive by using a two section knife on a three section table with each knife section extending through one wing section and part of the center section. The knives are driven from the outer ends and are allowed to flex over the hinge area. The wing sections are provided with rigid guard bars and a flexible section of guard bars secured to the inner end of the rigid guard bar and is secured by the other end to the center of the center section by means of a swivel or sliding connection.
Claims28
In a three section table-type swather header assembly including a center section and a wing section hingedly secured for limited movement one to each end of the center section;
- knife means for said sections, said knife means comprising in combination a pair of knife assemblies, each of said knife assemblies including a rigid guard bar secured to the front of each wing section, guards and hold-downs secured to said guard bar along the length thereof, a flexible guard bar section secured by one end thereof to the inner end of said rigid guard bar, means to mount the other end of said flexible guard bar section substantially centrally along the front of said center section, guards and hold-downs secured to said flexible guard bar sections, a flexible knife for each knife assembly each mounted for reciprocation through each said knife assembly and extending along said rigid guard bar and said flexible guard bar to adjacent said other end thereof and drive means operatively connected to each of said knives to reciprocate same between said guards and hold-downs on said wing section and said center section, each of said knives spanning the hinged securement of the respective wing section with the center section.
A swather assembly comprising in combination a center section and a wing section hingedly secured for limited movement one to each end of said center section, knife means for said sections, said knife means including a pair of knife assemblies, each of said knife assemblies including a rigid guard bar secured to the front of each wing section, guards and hold-downs secured to said guard bar along the length thereof, a flexible guard bar section secured by one end thereof to the inner end of said rigid guard bar, meams to mount the other end of said flexible guard bar section substantially centrally along the front of said center section, guards and hold-downs secured to said flexible guard bar sections, a flexible knife for each knife assembly each mounted for reciprocation through each said knife assembly and extending along said rigid bar and said flexible guard bar to adjacent said other end thereof and drive means operatively connected to each of said knives to reciprocate same between said guards and hold-downs on said wing section and said center section, each of said knives spanning the hinged securement of the respective wing section with the center section.
Dependencies are inferred from the claim text.