Earth working – Tool – standard or connection – Subsoilers
Patent
1990-09-18
1992-04-14
Reese, Randolph A.
Earth working
Tool, standard or connection
Subsoilers
172724, 172739, 172773, A01B 1310
Patent
active
051039184
ABSTRACT:
A tillage unit 1 reducing soil surface and soil surface crop residue disturbance is provded, including a thin vertical support shank 13 with a generally V-shaped horizontal blade support assembly 2 mounted to its lowest forward-shaped tip by bolts 8. The blade support assembly 2 is fabricated from the blade backup support 3, primary reinforcing plates 4, secondary reinforcing plates 5, main vertical mounts 6, and load block 7 attached together to form a generally V-shaped inclined structure with the front marginal apex portion forward and lowermost and the widest rear marginal portion opposite the apex and uppermost. The tillage unit's lower bottom-most edges are shaped and positioned to allow incresing clearance proceeding from front to back between the tillage unit 1 and the uncut soil below to allow for adjustment of the operating incline of the soil-contacting blade surface attached to the face of the blade support assembly 2 where the tillage unit 1 is fastened to the carrier frame 18. The V-shaped blade support assembly 2 has the primary blades 11, the secondary blade 12, and rip tooth 10 attached to its forward soil-contacting side by bolts 14, providing a protective, replaceable wear surface. The primary blade 12 and rip tooth 10 overlap the lowest forwardmost leading edges of the blade support assembly 2, forming a slightly larger V-shaped structure with the forward lowest tip of rip tooth 10 at the apex of the V-shape and the forward leading edges of the primary blades 11 raising vertically upward as they incline outward away from the center to their rear outside marginal edges forming at that point the widest horizontal cutting area of the V-shaped portion of the tillage unit 1.
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Reese Randolph A.
Thompson Jeffrey L.
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