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公开(公告)号：US20240206389A1
公开(公告)日：2024-06-27
申请号：US18547065
申请日：2022-02-21
发明人： Steven Lawn
CPC分类号： A01D34/733 , A01D34/66
摘要： A harvester cutter 1 including a rotating cutter 10, the rotating cutter 10 including a blade 20, wherein; a leading edge 21 of the blade 20 is located further up a rotational 11 axis of the rotating cutter 10 than a trailing edge 22 of the blade 20 at any radial location on a cutting portion 23 of the blade 20 relative to the rotational axis 11 of the rotating cutter 10.
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公开(公告)号：US10986779B2
公开(公告)日：2021-04-27
申请号：US15577753
申请日：2016-05-30
发明人： Steven Lawn
摘要： An apparatus comprising a pair of associated chopper drums, including a top chopper drum and a lower chopper drum. The chopper drum defines an axial cylindrical bore having a rotational axis into which is mounted a drive shaft (not shown) that is keyed radially to drive the chopper drum. Radially spaced from the rotational axis are a plurality of outwardly facing recesses defined by walls of a body of the chopper drum. Each recess extends longitudinally along the periphery of the chopper drum end-end to provide a recess for mounting a corresponding plurality of cutting blades. Each recess is defined by a longitudinally extending lower wall and an opposed and circumferentially spaced. The cross sectional profile of the chopper drum is generally consistent throughout its length and includes a plurality of ridges and troughs with the ridges built up to define therein the recesses, the ridges being interposed by the troughs. A higher side wall provides support for the cutting blade and is inclined relative to a plane extending radially outwardly from the rotational axis. The opposed smaller side wall supports a wedge clamp.
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公开(公告)号：US20180125005A1
公开(公告)日：2018-05-10
申请号：US15577753
申请日：2016-05-30
发明人： Steven Lawn
摘要： An apparatus comprising a pair of associated chopper drums, including a top chopper drum and a lower chopper drum. The chopper drum defines an axial cylindrical bore having a rotational axis into which is mounted a drive shaft (not shown) that is keyed radially to drive the chopper drum. Radially spaced from the rotational axis are a plurality of outwardly facing recesses defined by walls of a body of the chopper drum. Each recess extends longitudinally along the periphery of the chopper drum end-end to provide a recess for mounting a corresponding plurality of cutting blades. Each recess is defined by a longitudinally extending lower wall and an opposed and circumferentially spaced. The cross sectional profile of the chopper drum is generally consistent throughout its length and includes a plurality of ridges and troughs with the ridges built up to define therein the recesses, the ridges being interposed by the troughs. A higher side wall provides support for the cutting blade and is inclined relative to a plane extending radially outwardly from the rotational axis. The opposed smaller side wall supports a wedge clamp.
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