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公开(公告)号：US12016270B2
公开(公告)日：2024-06-25
申请号：US17954902
申请日：2022-09-28
CPC分类号： A01F12/26 , A01F12/448 , A01D69/06 , A01D75/28 , A01F12/181 , A01F12/28
摘要： A concave section for a harvester includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.
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公开(公告)号：US20240298579A1
公开(公告)日：2024-09-12
申请号：US18666139
申请日：2024-05-16
CPC分类号： A01F12/26 , A01F12/448 , A01D69/06 , A01D75/28 , A01F12/181 , A01F12/28
摘要： A concave section for a harvester includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.
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公开(公告)号：US20190387681A1
公开(公告)日：2019-12-26
申请号：US16413876
申请日：2019-05-16
摘要： A concave section for a harvester is provided. The concave section includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.
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公开(公告)号：US11497171B2
公开(公告)日：2022-11-15
申请号：US16413876
申请日：2019-05-16
摘要： A concave section for a harvester includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.
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