发明名称 Soil levelling drag plate for sowing machine - has elements producing small furrows to receive seed
摘要 <p>The soil levelling tool comprises a drag plate (1) and a sowing machine. In or on the plate, protrusions (4) are provided of constant shape to produce soil drills to receive the seed. These protrusions may consists of V-section ridges pressed into or welded on to the plate, and may be independently movable. The protrusions may consist of disc segments mounted above the plate and extending through slots, which segments may be independently supported and/or may be independently vertically movable. Immediately behind the protrusions there may be orifices (5) of seed supply tubes through which the seed drops into the drills. Behind the orifices there may be rakes to cover the seed with soil.</p>
申请公布号 NL7703029(A) 申请公布日期 1978.09.25
申请号 NL19770003029 申请日期 1977.03.21
申请人 RUMPTSTAD B.V., POSTBUS 1 TE 3243ZG STAD AAN 'T HARINGVLIET. 发明人
分类号 A01B49/06;A01C5/06;A01C7/20;(IPC1-7):01C5/06;01B31/00 主分类号 A01B49/06
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