Cary S. Hubner,Joseph W. Migliorini,Nathan A. Mariman,Dnyanesh Dhobale
申请号：
US15874171
公开号：
US10709054B2
申请日:
2018.01.18
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A work vehicle includes a frame structure and a plurality of row units with a row unit support structure attached to the frame structure. The row units also include a meter housing with a housing member and a removable cover. The housing member is attached to the row unit support structure and houses a metering element. The metering element is configured to singulate a commodity and meter the commodity from the meter housing. The row unit further includes an air pressure device configured to generate an air pressure differential across the metering element to retain the commodity on the metering element. The air pressure device is fixed relative to the row unit support structure. The air pressure device is configured to remain fixed relative to the row unit support structure as the cover is removed and reattached.
