公开(公告)号：US20250057077A1

公开(公告)日：2025-02-20

申请号：US18233918

申请日：2023-08-15

Applicant: Mark Lee Thompson

Inventor： Mark Lee Thompson

IPC: A01D34/73

Abstract: A lawnmower blade stamped or laser cut from a single metal sheet arranged as four blade arms of equal length on a single cutting plane that can resemble a cruciform shape. This design yields a uniform strength and reliability and does not rely on nuts, bolts, and multipart construction, and with minimal effect on overall weight. Each blade extends outward from a center mounting, possesses an offset, a sharpened leading edge and oppositely a deflection portion that is curved upward to produce a consistent suction force and circulating air flow useful during high moisture conditions. The leading edges all rotate in a single cutting plane to produce a level grass cut. The blade is capable of easy installation on a wide range of lawnmowers, but with a focus on commercial models and applications.

公开(公告)号：US20250048961A1

公开(公告)日：2025-02-13

申请号：US18794251

申请日：2024-08-05

Applicant: Milwaukee Electric Tool Corporation

Inventor： Nicholas Dobernig ,  Beth E. Cholst

IPC: A01D34/685 ,  A01D34/73 ,  A01D34/84 ,  A01D101/00

Abstract: A reciprocating power tool comprising a first blade and a second blade, wherein the first blade is driven by a first shaft assembly, wherein the second blade is driven by a second shaft assembly, wherein the first and second blade assemblies are reciprocally driven by a cam shaft, wherein the first shaft assembly defines a first moment of inertia, wherein the second shaft assembly defines a second moment of inertia, and wherein the first and second moments of inertia are within 5% of one another.

公开(公告)号：US12219896B2

公开(公告)日：2025-02-11

申请号：US17885804

申请日：2022-08-11

Applicant: Aero-Flex Technologies, Inc.

Inventor： Vincent D. Morabit

IPC: A01D34/73

Abstract: A reversible line blade for a rotating trimmer includes a loading section configured to be securable for rotation with a head of the rotating trimmer, a living hinge extending from the loading section, a transition section extending from the living hinge, and a cutting segment extending from the transition section. At least one of the transition section and the cutting segment has a cross-sectional shape that is configured to generate an updraft when the line blade is rotated clockwise and when the line blade is rotated counter-clockwise.

公开(公告)号：US20250031614A1

公开(公告)日：2025-01-30

申请号：US18917034

申请日：2024-10-16

Applicant: Changyao Innovation Technology (Shenzhen) Co., Ltd

Inventor： Yue Hu ,  Cong Zhou ,  Fei Xie

IPC: A01D34/73 ,  A01D101/00

Abstract: Provided in the present disclosure are a cutter head, a grass chopping structure, and a lawn mower. The cutter head includes a cutter head body and blades; the cutter head body surface A is provided with a central part connected to a rotary driving component; the cutter head body edge part can be connected to a mowing cutter; and the blades are disposed on the cutter head body surface A. The grass chopping structure includes the cutter head and a protective cover sleeved on the cutter head body surface A and edge part, where the protective cover is provided with air guide holes along a circumferential direction of the cutter head. The lawn mower has the above cutter head or the above grass chopping structure. When the cutter head rotates, the blades also rotate together to generate airflow to implement grass chopping, thereby reducing the formation of grass clumps.

公开(公告)号：US12171160B2

公开(公告)日：2024-12-24

申请号：US18217883

申请日：2023-07-03

Applicant: Alamo Group Inc.

Inventor： Daniel C. Samet ,  Andrew L. Bane

IPC: A01D34/66 ,  A01D34/73 ,  A01D34/74 ,  A01D34/76

Abstract: A mowing machine may include a central cutting deck generally disposed in a neutral mowing plane and a wing cutting deck pivotable with respect to the central cutting deck. A main gearbox may be connected to a wing gearbox by a wing driveline. The main gearbox may be disposed a sufficient distance forward of the central cutting deck and the wing cutting deck to permit the wing cutting deck to pivot about a hinge in a range of motion without disconnecting the wing driveline from either the main gearbox or the wing gearbox.

公开(公告)号：US12096720B2

公开(公告)日：2024-09-24

申请号：US18349334

申请日：2023-07-10

Applicant: The Toro Company

Inventor： Jason J. Henry ,  Chris A. Wadzinski

IPC: A01D42/00 ,  A01D34/66 ,  A01D34/73 ,  A01D34/76

CPC classification number: A01D42/005 ,  A01D34/667 ,  A01D34/73 ,  A01D34/76

Abstract: 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.

公开(公告)号：US20240292781A1

公开(公告)日：2024-09-05

申请号：US18662302

申请日：2024-05-13

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Haishen Xu ,  Toshinari Yamaoka ,  Jian Yang

IPC: A01D34/73 ,  A01D34/68 ,  A01D34/685 ,  A01D34/71 ,  A01D34/78 ,  A01D34/82 ,  A01D101/00

CPC classification number: A01D34/733 ,  A01D34/6806 ,  A01D34/685 ,  A01D34/73 ,  A01D34/78 ,  A01D34/71 ,  A01D34/82 ,  A01D2101/00

Abstract: 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.

公开(公告)号：US20240276911A1

公开(公告)日：2024-08-22

申请号：US18572003

申请日：2022-06-24

Applicant: SandCo StriMower Limited

Inventor： Samuel COOGAN

IPC: A01D34/416 ,  A01D34/73 ,  A01D34/78 ,  A01D101/00

CPC classification number: A01D34/4167 ,  A01D34/73 ,  A01D34/78 ,  A01D2101/00

Abstract: 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.

公开(公告)号：US12055522B2

公开(公告)日：2024-08-06

申请号：US17054579

申请日：2019-05-30

Applicant: Monsanto Technology LLC

Inventor： Jen Marzu ,  Jonathan N. Nordby ,  Jerald K. Pataky ,  Boyan N. Peshlov ,  Roger A. Weyhrich

IPC: G01N3/06 ,  G01N33/00 ,  G06T7/00 ,  A01D34/68 ,  A01D34/73 ,  A01D45/02 ,  G01S19/13

CPC classification number: G01N3/068 ,  G01N33/0098 ,  G06T7/0012 ,  A01D34/68 ,  A01D34/73 ,  A01D45/028 ,  G01N2203/0053 ,  G01S19/13 ,  G06T2207/30188 ,  G06T2207/30252

Abstract: 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.

公开(公告)号：US20240188491A1

公开(公告)日：2024-06-13

申请号：US18554905

申请日：2022-02-25

Applicant: HUSQVARNA AB

Inventor： Mats Svensson ,  Rickard Bergh

IPC: A01D34/81 ,  A01D34/00 ,  A01D34/71 ,  A01D34/73 ,  A01D101/00

CPC classification number: A01D34/81 ,  A01D34/008 ,  A01D34/71 ,  A01D34/73 ,  A01D2101/00

Abstract: 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).