发明名称 Rotatable soil engaging attachments
摘要 An attachment for a cultivator includes an elongated soil engaging roller with longitudinal elements held around the circumference of the roller by supports. The supports are spaced apart profiled plates or pairs of plates having anchorages and apertured lugs alternatively positioned around their peripheries to affix and loosely retain the elements respectively. The elements are helically wound about a central tubular support which forms the axis of rotation for the roller. Alternative elements can be of different cross sections from one another and the elements can be tubes, rods and/or hollow oblong elements. The attachment is mounted to the rear of a cultivator on arms pivoted to the cultivator frame for vertical movements and/or adjustments with respect to rotary soil-working members of the cultivator.
申请公布号 US3910356(A) 申请公布日期 1975.10.07
申请号 US19740524883 申请日期 1974.11.18
申请人 VAN DER LELY, CORNELIS 发明人 VAN DER LELY, CORNELIS
分类号 A01B29/04;(IPC1-7):A01B21/00 主分类号 A01B29/04
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