发明名称 |
Seed planter places seeds at planting point with zero forward velocity |
摘要 |
planter (10) comprises a number of suction cups (30) adapted to be driven around a common horizontal rotation axis in the same sense as any ground wheels present and with zero ground speed at the point of seed-piece ejection from the planter. The variable-length arms (38) carrying the cups at their outer ends result in each cup (30) being displaceable towards and away from the rotation axis to provide a corresponding variation in the peripheral velocity of the cup in dependence on its angular position about the rotation axis.
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申请公布号 |
NZ311118(A) |
申请公布日期 |
2000.01.28 |
申请号 |
NZ19960311118 |
申请日期 |
1996.06.27 |
申请人 |
BRITISH TECHNOLOGY GROUP LTD |
发明人 |
ROSS, DAVID WILLIAM;MCRAE, DOUGLAS CHARLES |
分类号 |
A01C9/06;(IPC1-7):A01C9/00 |
主分类号 |
A01C9/06 |
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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