发明名称 |
GRAIN DRILL UNIT HAVING SEED FIRMING WHEEL |
摘要 |
A seed firming wheel assembly (66) is supported in close-coupled relationship with the rear portion of the paired discs (36, 38) of an opener (30) to gently press deposited seeds down into the bottom of a V-shaped trench formed by the discs (36, 38). The mounting arm (94) of the assembly (66) is configured in a manner to minimize the accumulation of mud and trash residue, while the wheel (130) itself may take the form of a solid, circular block of ultra-high-molecular-weight polyethylene with slick sides (218) to reduce soil adherence or a spoked, molded plastic wheel (118) having open spaces (134) between the spokes to permit soil pass-through. |
申请公布号 |
WO9317545(A1) |
申请公布日期 |
1993.09.16 |
申请号 |
WO1992US09680 |
申请日期 |
1992.11.09 |
申请人 |
GREAT PLAINS MANUFACTURING, INC. |
发明人 |
JOHNSON, ERIC;MCCLURE, J., MICHAEL;VAN BLARICON, JAMES, I. |
分类号 |
A01C5/06 |
主分类号 |
A01C5/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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