Shredbar apparatus

• US 4,383,652 A
• Filed: 04/20/1981
• Issued: 05/17/1983
• Est. Priority Date: 04/20/1981
• Status: Expired due to Fees

• Current Assignee: Blue Leaf IP Incorporated (CNH Industrial N.V.)
• Original Assignee: Sperry Corporation
• Inventors: Osborne, Donald L., McClure, John R., Shriver, Joe E.
• Primary Examiner(s): Rosenbaum, Mark
• Application Number:
  US06/255,412
• Time in Patent Office: 757 Days
• Field of Search: 241/88.4, 241/89.1, 241/89.2, 241/88.1, 241/89.3, 241/220, 241/221, 241/222, 241/101.7, 241/285 R, 241/285 A, 241/158, 241/285 B, 241/73, 241/88 , 241/189 R, 241/239, 241/241, 241/300.1, 241/291
• US Class Current: 241/88.4
• CPC Class Codes: A01F 29/06 having rotating knives with their cutting edges on a cylinder surface, e.g. of the helical-type
• CPC Class Codes: A01F 29/095 Mounting or adjusting of knives
• CPC Class Codes: B02C 18/144 with axially elongated knives
• CPC Class Codes: B02C 2023/165 Screen denying egress of oversize material

Abstract

A shredbar is used with a forage harvester cutterhead mainly for cracking kernels of corn. The problem of premature wear of the shredbar is avoided by providing a shredbar apparatus with a reversible surface for abrading crop material. The shredbar apparatus includes pivotal members to increase flexibility for quick installation and removal.

Claims

1. A reversible shredbar apparatus comprising:

a pair of spaced endplates;

a face plate interconnecting said end plates;

a plurality of crop material abrading ribs on a first face of said face plate, said abrading ribs extending from a first to a second one of said end plates;

a first pair of pin receiving tubes connected to a second face of said face plate and abutting said first end plate, said first end plate having a pair of apertures formed therein in alignment with said first pair of tubes;

a second pair of pin receiving tubes connected to said second face and abutting said second end plate, said second end plate having a pair of apertures formed therein in alignment with said second pair of tubes;

a pair of arcuate members each having a first and a second end, said end plates connected between said arcuate members adjacent said first end, each of said arcuate members having an aperture therein adjacent said first end;

means for releasably connecting either of said first and second end plates to said first end of either of said arcuate members for aligning said aperture in each of said arcuate members with one of said apertures of said pairs formed in said end plate;

a tubular member fixedly interconnected between a second end of each arcuate member, each of said arcuate members second ends having an aperture formed therein in alignment with said tubular member; and

each of said arcuate members is divided into two arcuate sections, each section being pivotally interconnected between said first and second ends.

2. The apparatus of claim 1 including:

a cutterhead housing of a forage harvester, said housing having first and second spaced frame plates;

first and second crescent members attached to said first and second frame plates, respectively; and

said first and second arcuate members are attached to said first and second frame plates, respectively.

3. The apparatus of claim 2 wherein each of said first and second crescent members is pivotally and adjustably attached to said first and second frame plates, respectively.

4. The apparatus of claim 2 wherein each of said arcuate members is pivotally and adjustably connected to said frame plates.

5. The apparatus of claim 2 wherein each of said crescent members is pivotally and adjustably connected to said frame plates, each of said arcuate members is pivotally and adjustably connected to said frame plates, and said first and second arcuate members are in abutting engagement with said first and second crescent members, respectively.

6. The apparatus of claim 1 wherein said second face of said face plate includes at least one reinforcing rib extending from said first to said second end plates.