GRATE FOR AXIAL FLOW COMBINE

• US 3,568,682 A
• Filed: 09/17/1969
• Issued: 03/09/1971
• Est. Priority Date: 09/17/1969
• Status: Expired due to Term

• Current Assignee: JI Case Company
• Original Assignee: Richard E. Benson, William H. Knapp
• Inventors: Knapp, William H., Benson, Richard E.
• Application Number:
  US04/858,694
• Time in Patent Office: 538 Days
• US Class Current: 460/108
• CPC Class Codes: A01F 12/24 One-part threshing concaves

Abstract

A removable grate for an axial flow combine made up of a plurality of independent sections each of which are of a weight and size that can be readily handled by the combine operator. An access opening is formed in the combine sidewall through which sections of the grate can pass and be slid into a shelflike retainer. The last section is secured into place by locking means and serves to hold the other sections in place.

Claims

1. In a combine having an elongated threshing and separating cylinder formed about an axis through which material flows axially:

the bottom portion of said elongated threshing and separating cylinder formed of grain permeable material, said bottom including a removable bottom grate made up of a plurality of independent sections, each of said sections having a generally trough-shape defined by a pair of parallel grate side edges and a pair of arcuate grate fore and aft edges, flanges secured to said grate side edges and extending radially outwardly therefrom;

said elongated cylinder having an opening formed therein corresponding in shape to said removable bottom grate, said opening defined by a first cylinder side edge, a second cylinder side edge and a pair a of arcuate cylinder fore and aft edges;

an inwardly opening shelf secured to said elongated cylinder along the entire length of said first cylinder side edge;

an inwardly opening shelf secured to said elongated cylinder along a poRtion of said second cylinder side edge, a generally radially directed and outwardly extending abutment occupying the remaining portion of said cylindrical side edge; and

means for securing the flange of one section to said abutment.

2. The invention as set forth in claim 1 wherein said combine includes sidewalls enclosing said elongated cylinder, an access opening formed in the sidewall adjacent said abutment through which said independent sections can pass.

3. The invention as set forth in claim 1 wherein each of said independent sections is equal in length to said outwardly extending abutment.

4. The invention as set forth in claim 2 wherein each of said independent sections is equal in length to said outwardly extending abutment.

5. The invention as set forth in claim 1 wherein said means for securing the flange of one section to said abutment comprises apertures formed in said flanges and said abutment and locking means passing through said apertures when they are aligned.

6. The invention as set forth in claim 2 wherein said means for securing the flange of one section to said abutment comprises apertures formed in said flanges and said abutment and locking means passing through said apertures when they are aligned.

7. The invention as set forth in claim 3 wherein said means for securing the flange of one section to said abutment comprises apertures formed in said flanges and said abutment and locking means passing through said apertures when they are aligned.