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QUICK DEPTH ADJUSTMENT FOR PARALLEL ARM OPENERS
专利权人:
Bourgault Industries Ltd.
发明人:
Jagow Scot
申请号:
US201715706836
公开号:
US2018338411(A1)
申请日:
2017.09.18
申请国别(地区):
美国
年份:
2018
代理人:
摘要:
A parallel arm furrow opener assembly defines upper and lower front pivot axes and upper and lower rear pivot axes oriented horizontally and perpendicular to a travel direction. A furrow opener and a packer wheel are attached to a rear link of the assembly. In operation the furrow opener and the packer wheel are in fixed positions with respect to the rear link member, and a bias element is operative to exert a downward bias force on the furrow opener assembly. A front pivot line connecting the upper and lower front pivot axes is parallel to a rear pivot line connecting the upper and lower rear pivot axes, and the front and rear pivot lines are oriented at a pivot angle with respect to a vertical orientation, and the pivot angle is adjustable to vary a furrow depth of the furrow.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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