公开(公告)号：US3581483A

公开(公告)日：1971-06-01

申请号：US3581483D

申请日：1969-03-26

申请人： VICTOR P KOHL ,  MARION G AMICK

发明人： KOHL VICTOR P ,  AMICK MARION G

IPC分类号： A01D45/00 ,  A01D55/00

CPC分类号： A01D45/007 ,  Y10S56/08

摘要： The asparagus stalks are cut at suitable level or height by diamond or triangular teeth formed on a thin knife blade in which the inclined edges of the teeth are sharpened from beneath the blade only leaving a flat planar upper surface of the blade as a support for the severed stalks as the inclined teeth cut through same, the thin knife blade being affixed for support and substantial rigidity to a rigid bar which is supported only at its end portions by linkages which compel a species of horizontal oscillating movement of the bar and supported blade compounded of a transverse cutting stroke and simultaneous forward and rearward movements of the teeth by which the inclined edges of said teeth are shifted forwardly and rearwardly while being reciprocated laterally, means being provided in connection with one linkage at least to automatically supply such composite motion incident to the movement of the harvester through the field, while a blast of air directed rearward against the forward surfaces of the asparagus stalks holds the stalks to the line for efficient and clean cutting thus preserving the stalks in prime condition for command of highest prices in the commercial market, the air blast serving also to remove the severed stalks to a conveyor or other means by which the stalks are finally evacuated to a suitable destination.