公开(公告)号：US12232451B2

公开(公告)日：2025-02-25

申请号：US17461658

申请日：2021-08-30

Applicant: Briggs & Stratton, LLC

Inventor： Robert S. Laurin ,  E. Mark Lynch ,  Derrick R. Camenga

IPC: A01D69/03 ,  A01D34/64 ,  A01D34/68 ,  A01D34/82 ,  B60T7/12 ,  A01D101/00

Abstract: A standing ride on mower includes a frame, a right drive wheel, a left drive wheel, a prime mover, a right side integrated transaxle operating under influence of the prime mover to drive rotation of the right drive wheel and having a housing, hydraulic pump, and hydraulic motor, a left side integrated transaxle operating under influence of the prime mover to drive rotation of the left drive wheel, having a housing, hydraulic pump, and hydraulic motor, and an operator platform to support a standing operator of the mower extending beneath the left housing and beneath the right housing such that a distance between an innermost portion of the right side integrated transaxle and an innermost portion of the left side integrated transaxle is less than a width of the operator platform.

公开(公告)号：US20250048960A1

公开(公告)日：2025-02-13

申请号：US18799035

申请日：2024-08-09

Applicant: STIGA S.P.A. IN BREVE ANCHE ST. S.P.A.

Inventor： ALBERTO PAVAN ,  STEFANO GRAZIOTTO

IPC: A01D34/66 ,  A01D34/82 ,  A01D43/063 ,  A01D101/00

Abstract: The present invention relates to a cutting plate for a mobile device. The cutting plate comprises a body defining a cutting cavity and an unloading channel. The cutting cavity comprises a first cutting chamber and a second cutting chamber in communication with each other with an unloading channel. A first blade and a second blade are rotatably housed, respectively, in the first cutting chamber and in the second cutting chamber. A deflector and/or separator element is installed in the cutting cavity so as to be interposed between the first cutting chamber and the second cutting chamber. The cutting cavity is externally delimited by an edge surface. The edge surface comprises a first portion and a second portion defining an inlet chamber in communication with the cutting cavity. Protection elements extend from the second portion and are configured to intercept, in use, any solid bodies expelled at high speed.

公开(公告)号：US12185665B1

公开(公告)日：2025-01-07

申请号：US18402331

申请日：2024-01-02

Applicant: DIMAAG-AI, Inc.

Inventor： Ian Wright ,  David Beard ,  David Kieke

IPC: A01D34/82 ,  A01D34/73 ,  A01D34/78 ,  A01D101/00

Abstract: Low-noise electric lawnmowers comprise curved cutting blades. In some examples, a lawnmower comprises a driving unit and a mowing unit with a mowing-unit deck. The mowing-unit deck comprises a set of blade units (e.g., 3 units) and a discharge conduit. Each blade unit comprises a blade enclosure and a cutting blade with a cutting edge having a curved shape. For example, the cutting edge, at a point furthest away from the blade center axis, may form an approach angle of greater than 90° but be less than 90° closer to the blade center. This curving aspect allows operating the blade at lower rotating speeds (e.g., less than 3,000 RPM), which reduces the turbulence and noise. In some examples, the blade enclosure forms an enclosure tunnel such that the tunnel's cross-sectional area increases from the tunnel's inlet to the outlet.

公开(公告)号：US20240415052A1

公开(公告)日：2024-12-19

申请号：US18816137

申请日：2024-08-27

Applicant: THE TORO COMPANY

Inventor： Chadwick A. Shaffer ,  Todd A. Porter ,  Steven J. Svoboda

IPC: A01D34/69 ,  A01D34/68 ,  A01D34/76 ,  A01D34/82 ,  A01D101/00 ,  B62B5/00 ,  B62D51/04

Abstract: A walk power mower having a cutting deck supported upon the ground by a front and rear wheel(s). The mower includes a traction drive system incorporating a bidirectional transmission adapted to propel the mower alternatively in both forward and reverse directions. In some embodiments, the mower may include a single bidirectional transmission (e.g., powering only rear wheel(s) or only front wheel(s) of the mower), while in other embodiments, two bidirectional transmissions may be provided to power both the front and the rear wheel(s). In other embodiments, the mower may include a bidirectional transmission powering the rear wheel(s), while the front wheel(s) may be attached to the deck via a caster assembly.

公开(公告)号：US12161062B2

公开(公告)日：2024-12-10

申请号：US18685659

申请日：2022-08-22

Applicant: Ariens Company

Inventor： Eric Otto Freienmuth ,  Ross Michael Seefeldt

IPC: A01D34/82 ,  B62D1/12 ,  G05G1/06 ,  A01D101/00

Abstract: A multiple Hirth joint for permitting linear and angular adjustment of an upper control arm with respect to a lower control arm. The joint includes a multiple Hirth interface having a slot through it, a confronting single Hirth interface, and an actuator. The actuator permits manual loosening and tightening of the multiple Hirth interface and single Hirth interface to permit linear and angular adjustment. Loosening of the actuator simultaneously permits linear and angular adjustment and tightening of the actuator simultaneously lock the joint into the selected linear and angular position.

公开(公告)号：US20240399896A1

公开(公告)日：2024-12-05

申请号：US18801976

申请日：2024-08-13

Applicant: Greenworks (Jiangsu) Co., Ltd

Inventor： Qunli Wei ,  Qinghua Shi ,  Dongdong Shi ,  Fei Zhu

IPC: B60L50/60 ,  A01D34/64 ,  A01D34/82 ,  A01D69/02 ,  A01D101/00 ,  B60R11/06

Abstract: A riding mower, which comprises a wheel assembly, a body arranged on the wheel assembly and a battery assembly, the wheel assembly has a front wheel assembly provided with a front shaft and a front wheel and a rear wheel assembly provided with a pair of rear shafts and a pair of rear wheels. The battery assembly is mounted on the body, and a gravity center of the battery assembly is located between the front shaft and the rear shafts along a front to back direction. The riding mower of the present invention can enhance the driving stability of the riding mower and further solve the problems of easy head up and low efficiency of the existing riding mower.

公开(公告)号：US12157443B2

公开(公告)日：2024-12-03

申请号：US16322753

申请日：2017-08-02

Applicant: The Toro Company

Inventor： Matthew J. Decker ,  Luke R. Nahorniak ,  John B. Heckel

IPC: B60T1/093 ,  B60K7/00 ,  B60T8/32 ,  B60T10/04 ,  B60T15/04 ,  F01L9/10 ,  F01L13/06 ,  F02D13/04 ,  A01D34/00 ,  A01D34/66 ,  A01D34/82 ,  A01D101/00 ,  B60T1/02 ,  B60T1/087 ,  B60T13/58 ,  B60T15/22

Abstract: An outdoor grounds maintenance vehicle is self-propelled by a hydrostatic traction drive system that provides dynamic braking to the vehicle without the need for separate service brakes acting on the wheels of the vehicle. An engine kill device can be manually actuated by the operator to access the dynamic braking of the traction drive system by reducing the speed of the prime mover that powers the pump of the traction drive system. This provides an auxiliary braking system that can be used in an emergency or on demand by the operator in the event the accelerator pedal does not properly control the pump swashplates. The operator can control the rate at which the auxiliary brake system reduces the speed of the prime mover to zero.

公开(公告)号：US20240373784A1

公开(公告)日：2024-11-14

申请号：US18654334

申请日：2024-05-03

Applicant: DURQ MACHINERY CORP.

Inventor： Yu-Chia HUANG ,  Fu-Peng CHOU

IPC: A01D34/82 ,  A01D34/00 ,  A01D101/00

Abstract: A lift detection mechanism of a mowing robot includes a wheel set, a movable member, a transmitter, and a receiver. The wheel set has an axle rotatably and movably penetrated into a fixed seat, a wheel connected to the axle and located outside of the fixed seat, and a fixing member disposed to the axle and located in the fixed seat. The movable member is disposed to the axle and located in the fixed seat. One of the transmitter and the receiver is disposed to the movable member, and the other of the transmitter and the receiver is disposed to the fixed seat. As such, when the mowing robot is lifted by a user, the movable member is driven by an elastic member to move downwards until the transmitter and the receiver are staggered. As such, blades are controlled to stop working for preventing the user from being cut.

公开(公告)号：US20240334871A1

公开(公告)日：2024-10-10

申请号：US18622106

申请日：2024-03-29

Applicant: Milwaukee Electric Tool Corporation

Inventor： Brian Lee ,  Tabrez Mahamad

IPC: A01D34/90 ,  A01D34/76 ,  A01D34/82

CPC classification number: A01D34/90 ,  A01D34/76 ,  A01D34/824

Abstract: Brush cutters are provided. A brush cutter includes a handle assembly and a working head assembly. The working head assembly includes a working implement and a bevel pinion extending from a first end to a bevel end, wherein the bevel end is functionally coupled to the working implement, wherein the bevel pinion is supported in a cavity by a first bearing and a second bearing disposed around an outer surface of the bevel pinion, and wherein the first bearing and the second bearing are separated by a gap. The brush cutter further includes a shaft extending at least partly between the handle assembly and the working head assembly; and a motive device operable to rotate the bevel pinion for actuating the working implement.

公开(公告)号：US20240324500A1

公开(公告)日：2024-10-03

申请号：US18685659

申请日：2022-08-22

Applicant: Ariens Company

Inventor： Eric Otto Freienmuth ,  Ross Michael Seefeldt

IPC: A01D34/82 ,  A01D101/00 ,  B62D1/12 ,  G05G1/06

CPC classification number: A01D34/824 ,  B62D1/12 ,  G05G1/06 ,  A01D2101/00 ,  G05G2700/02

Abstract: A multiple Hirth joint for permitting linear and angular adjustment of an upper control arm with respect to a lower control arm. The joint includes a multiple Hirth interface having a slot through it, a confronting single Hirth interface, and an actuator. The actuator permits manual loosening and tightening of the multiple Hirth interface and single Hirth interface to permit linear and angular adjustment. Loosening of the actuator simultaneously permits linear and angular adjustment and tightening of the actuator simultaneously lock the joint into the selected linear and angular position.