公开(公告)号：US11477939B2

公开(公告)日：2022-10-25

申请号：US16798272

申请日：2020-02-21

申请人： Briggs & Stratton, LLC

发明人： Jeffrey M. Zeiler ,  Kenneth W. Derra ,  Scott A. Funke ,  David W. Procknow ,  Rodney J. Balzar

IPC分类号： A01D34/81 ,  A01D34/00 ,  A01D34/66 ,  A01D34/71 ,  A01D34/82 ,  A01D34/73 ,  A01D101/00

摘要： A mower deck insert includes a first cutting chamber, a second cutting chamber, and a discharge passage extending adjacent to the first cutting chamber and the second cutting chamber. The first cutting chamber includes a first axial scroll extending about a first vertical axis. The first axial scroll includes a first upper surface having a first start region and a first end region. The second cutting chamber includes a second axial scroll extending about a second vertical axis. The second axial scroll includes a second upper surface having a second start region and a second end region. The first start region is vertically lower than the first end region, and the second start region is vertically lower than the second end region.