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公开(公告)号：US12096720B2
公开(公告)日：2024-09-24
申请号：US18349334
申请日：2023-07-10
申请人： The Toro Company
发明人： Jason J. Henry , Chris A. Wadzinski
CPC分类号： A01D42/005 , A01D34/667 , A01D34/73 , A01D34/76
摘要： A rotary lawn mower has one or more grass cutting blades that are rotatable in opposite directions about a vertical axis or axes. Each blade is double edged having front and rear cutting edges on each end of the blade. Each blade end has a front sloped face inboard of the front cutting edge and a rear sloped face inboard of the rear cutting edge. These faces create air flow within the cutting chamber when cutting grass regardless of the direction of rotation of the blade. The direction of rotation of each blade is reversed to switch between discharge and mulching modes of operation. A flow director has a curved vertical guide wall that guides the grass clippings through a discharge opening in the discharge mode and that guides the flow of grass clippings away from the discharge opening in the mulching mode.
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公开(公告)号：US20240292781A1
公开(公告)日：2024-09-05
申请号：US18662302
申请日：2024-05-13
发明人： Haishen Xu , Toshinari Yamaoka , Jian Yang
IPC分类号： A01D34/73 , A01D34/68 , A01D34/685 , A01D34/71 , A01D34/78 , A01D34/82 , A01D101/00
CPC分类号： A01D34/733 , A01D34/6806 , A01D34/685 , A01D34/73 , A01D34/78 , A01D34/71 , A01D34/82 , A01D2101/00
摘要： A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.
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公开(公告)号：US20240276911A1
公开(公告)日：2024-08-22
申请号：US18572003
申请日：2022-06-24
发明人： Samuel COOGAN
IPC分类号： A01D34/416 , A01D34/73 , A01D34/78 , A01D101/00
CPC分类号： A01D34/4167 , A01D34/73 , A01D34/78 , A01D2101/00
摘要： A lawn trimmer (100) comprising: a powered cutting tool (112) comprising a motor operably coupled to a rotatable cutter holder (120), the rotatable cutter holder (120) being operably coupled to a cutting piece (122). The rotatable cutter holder (120) has a forward side and first and second lateral sides. A guard (116) is configured to extend substantially from the first lateral side to the second lateral side around the front side of the rotatable cutter holder (120). The guard (116) is configured to provide space for the cutting piece (122) to rotate freely within the guard (116) and is an apertured barrier that provides a protective buffer between the cutting piece (122) and a ground surface, thereby preventing engagement of the rotatable cutter holder (120) with the ground surface when the powered cutting tool (112) is translated over the ground surface.
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公开(公告)号：US12055522B2
公开(公告)日：2024-08-06
申请号：US17054579
申请日：2019-05-30
CPC分类号： G01N3/068 , G01N33/0098 , G06T7/0012 , A01D34/68 , A01D34/73 , A01D45/028 , G01N2203/0053 , G01S19/13 , G06T2207/30188 , G06T2207/30252
摘要： A system for post-harvest or at-harvest determination of pre-harvest strength of a corn stalk wherein the system comprises a stalk stump cutter structured and operable to cut a discarded post-harvest stalk stump to provide a substantially flat and even cross-sectional surface of the stalk stump, an imaging device structured and operable to acquire image data of the stalk stump cross-section, and a computer based data processing system structured and operable to analyze the image data and determine a pre-harvest stalk strength of the corresponding stalk.
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公开(公告)号：US20240188491A1
公开(公告)日：2024-06-13
申请号：US18554905
申请日：2022-02-25
申请人： HUSQVARNA AB
发明人： Mats Svensson , Rickard Bergh
IPC分类号： A01D34/81 , A01D34/00 , A01D34/71 , A01D34/73 , A01D101/00
CPC分类号： A01D34/81 , A01D34/008 , A01D34/71 , A01D34/73 , A01D2101/00
摘要： A cutting arrangement (2) configured to be attached to a lawnmower (1) to cut vegetation is disclosed. The cutting arrangement (2) comprises a cutting unit (4) configured to rotate in a first rotational direction (R) around a rotation axis (Ax) during operation, a cutting guard (3) comprising a top surface (13) and side walls (34), and a centre body (8) protruding from the 5 top surface (13). The centre body (8) is arranged such that the distance (d11, d12, d13) from the rotation axis (Ax) to radially outer delimiting surfaces (8.1, 8.2, 8.3) of the centre body (8) decreases continuously, seen in the first rotational direction (R), within a first angle (a1) having its vertex (v) at the rotation axis (Ax). The first angle (a1) exceeds 90 degrees or exceeds 180 degrees. The present disclosure further relates to a lawnmower (1) comprising 10 a cutting arrangement (2).
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公开(公告)号：US11684010B2
公开(公告)日：2023-06-27
申请号：US17030819
申请日：2020-09-24
申请人： Ping-Tzu Ho
发明人： Ping-Tzu Ho
IPC分类号： A01D34/73 , A01D34/67 , A01D101/00
CPC分类号： A01D34/73 , A01D34/67 , A01D2101/00
摘要： A blade and a lawn mower including the same is provided. The blade includes a main body, the main body includes a body portion and an assembling portion which is connected to the body portion, the assembling portion is configured for being disposed on a mowing disk of a lawn mower, the mowing disk is rotatable about an axial direction, the body portion includes two side faces opposite to each other, each said side face has a curved section and a plane section, the two side faces define a midline therebetween, and the midline and a vertical plane which is lateral to the axial direction define an angle therebetween.
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公开(公告)号：US20190069479A1
公开(公告)日：2019-03-07
申请号：US15925147
申请日：2018-03-19
申请人： Drew Robb
发明人： Drew Robb
CPC分类号： A01D34/73 , A01D34/736 , A01D34/82 , A01D34/835 , A01D41/00 , A01F7/04 , A01F7/70 , A01F12/18 , A01K39/00 , A01K2227/30
摘要： A cutting and threshing blade for a bush hog, wherein the blade has a trailing edge and a leading edge. At least a third of the leading edge of the upper-side of an elongate distal portion of the blade has a knife edge with a knife length that thickens toward the trailing edge. The trailing edge can have an upward air deflector. The bottom-side of the elongate distal portion has a threshing element, which includes a threshing block, which is a steel block having a block length that is comparable to the knife length and projects downward and substantially parallel to the knife edge. The rotating blades pummel growth carriers (i.e.; cob, husk) bearing seeds, grains, and kernels with enough force that they are released. The synergistic rotating knife edge and threshing block transform the bush hogging process from a cutting process to a cutting and threshing process.
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公开(公告)号：US20180184584A1
公开(公告)日：2018-07-05
申请号：US15856330
申请日：2017-12-28
申请人： LG ELECTRONICS INC.
发明人： Hyunsup Song , Jaehoon Jeong
CPC分类号： A01D34/008 , A01D34/58 , A01D34/64 , A01D34/73 , A01D34/733 , A01D34/74 , A01D34/78 , A01D34/81 , A01D34/828 , A01D2101/00
摘要： The present disclosure relates to a lawn mower robot, including an inner body; an outer cover configured to surround an outer side of the inner body; a plurality of blades rotatably provided on a bottom surface of the inner body to cut grass; casters pivotably installed at both front sides of the inner body, respectively, to be pivotable about a rotation shaft; wheels rotatably mounted at both rear sides of the inner body, respectively; a driving unit configured to drive the wheels; and a sensor unit configured to sense whether or not the caster is lifted from the ground, wherein the sensor unit comprises a drop switch configured to sense the lowering of the caster when the caster is lowered in a state of being floated in the air.
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公开(公告)号：US09955627B2
公开(公告)日：2018-05-01
申请号：US14378734
申请日：2013-02-15
发明人： Yasushi Nakano , Yuki Horie , Kazuhiko Funabashi , Yuuichi Toyoshima , Hiromi Ozawa , Hirohisa Tomita
CPC分类号： A01D34/828 , A01D34/73 , A01D34/90 , A01D34/902 , A01G3/062 , B25F3/00 , B25F5/02 , Y10T83/541 , Y10T83/855
摘要： An electric working machine including: a motor; a control unit configured to control rotation of the motor; a fixed part provided with a handle having a grip portion; a movable part held by the fixed part and is configured to be extendible by sliding relative to the fixed part; and a cutting blade provided to a end portion of the movable pipe and is configured to be driven by the motor; characterized in that the electric working machine further includes a detection unit which is connected to the control unit and is configured to detect whether or not the movable part is positioned at a predetermined extended position relative to the fixed part.
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公开(公告)号：US09867332B2
公开(公告)日：2018-01-16
申请号：US14674942
申请日：2015-03-31
申请人： Kai S. Lee , Esther W. Lee
发明人： Kai S. Lee , Esther W. Lee
CPC分类号： A01D34/73 , A01D34/662 , A01D34/71 , A01D34/76
摘要： A mower deck is provided herein. The mower deck includes a housing having a top plate and a downwardly extending wall that depends from a substantial portion of a perimeter of the top plate. The housing includes an attachment member configured to hingedly couple the housing to equipment such that the housing may rotate through a plurality of positions. First and second blades are disposed within the housing configured to rotate in respective first and second directions. A driving unit is operatively connected to the first and second blades. A flexible transmission is coupled to the power source of the equipment and configured to power the drive unit, wherein the transmission is operable at each of the plurality of positions of the housing.
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