公开(公告)号：US20240336087A1

公开(公告)日：2024-10-10

申请号：US18631770

申请日：2024-04-10

Applicant: MTD PRODUCTS INC

Inventor： Jay Maggard ,  Zachary A. Lyzen

IPC: B60B33/00 ,  A01D34/00 ,  A01D34/68 ,  A01D34/69 ,  A01D69/03

CPC classification number: B60B33/0068 ,  A01D34/006 ,  A01D34/69 ,  A01D69/03 ,  B60B33/0076 ,  A01D2034/6831

Abstract: Presented is a selective active caster steering apparatus for a maintenance apparatus having a first drive unit and a second drive unit. The selective active caster steering apparatus may comprise a caster wheel frame defining a caster swivel axis and a caster spin axis; a caster wheel operationally engaged with the caster wheel frame such that the caster wheel is adapted to be steered about the caster swivel axis; and a first caster steering unit adapted to selectably apply an amount of active torque to the caster wheel about the caster swivel axis as indicated by a first formula. The first formula may determine the amount of active torque to output as a first function of one or more measured parameters.

公开(公告)号：US12048267B2

公开(公告)日：2024-07-30

申请号：US17261406

申请日：2019-08-07

Applicant: THE TORO COMPANY

Inventor： Alexander Steven Frick ,  Jason Thomas Kraft ,  Aaron Yarrow Curtis ,  Kevin Dale Docken ,  Khari Sekou Clarke

IPC: A01D34/00 ,  A01D34/82 ,  G01C21/00 ,  G05D1/00 ,  G06V10/46 ,  G06V10/75 ,  G06V20/10 ,  G06V20/64 ,  A01D34/69 ,  A01D34/78 ,  A01D101/00

CPC classification number: A01D34/008 ,  A01D34/824 ,  G01C21/3848 ,  G01C21/3867 ,  G05D1/0061 ,  G05D1/0088 ,  G05D1/0221 ,  G05D1/0246 ,  G05D1/027 ,  G05D1/0274 ,  G06V10/462 ,  G06V10/757 ,  G06V20/10 ,  G06V20/64 ,  A01D34/69 ,  A01D34/78 ,  A01D2101/00

Abstract: A handle assembly for an autonomous vehicle such as a lawn mower is provided and may include a cradle adapted to receive a mobile computer. The handle assembly may be configured in both an autonomous mode position and a manual mode position. The vehicle may operate autonomously when the handle assembly is in the autonomous mode position, and be adapted to move under manual operator control, e.g., for perimeter training, when the handle assembly is in the manual mode position.

公开(公告)号：US20240206384A1

公开(公告)日：2024-06-27

申请号：US18602062

申请日：2024-03-12

Applicant: Greenworks (Jiangsu) Co., Ltd

Inventor： Feng Jiang ,  Wen Tao

IPC: A01D34/68 ,  A01D34/69 ,  A01D101/00 ,  B62D51/04

CPC classification number: A01D34/6806 ,  A01D34/69 ,  B62D51/04 ,  A01D2034/6843 ,  A01D2101/00

Abstract: The invention provides a garden tool, which comprises a traveling assembly, a travel-driven assembly and a control assembly. The traveling assembly comprises front wheel and rear wheel.
The travel-driven assembly comprises a front-drive mechanism for driving the front wheel and a rear-drive mechanism for driving the rear wheels. The control assembly controls the work of the front-drive mechanism and the rear-drive mechanism, so as to enable the front wheel and the rear wheel to respectively move forward or backward. Compared with the prior art, the garden tool drives the front wheels and the rear wheels to move forward or backward respectively through the front-drive mechanism and the rear-drive mechanism, and thus not only the garden tool automatically walks backward, but also the traveling assembly can be ensured to obtain sufficient power, thereby the garden tool is prevented from slipping when climbing and retreating.

公开(公告)号：US20240204629A1

公开(公告)日：2024-06-20

申请号：US18595639

申请日：2024-03-05

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Yanqing Xu ,  Yufei Ren

IPC: H02K11/35 ,  A01D34/00 ,  A01D34/68 ,  A01D34/69 ,  A01D34/78 ,  H02K7/14

CPC classification number: H02K11/35 ,  A01D34/006 ,  A01D34/6806 ,  A01D34/69 ,  A01D34/78 ,  H02K7/145

Abstract: A power tool includes transmission lines capable of transmitting power or communication data; and multiple function modules electrically connected to the transmission lines and capable of selectively receiving the communication data from the transmission lines or transmitting the communication data to the transmission lines. A transmission frequency at which the transmission lines transmit the communication data is greater than or equal to 1 kHz.

公开(公告)号：US11997945B2

公开(公告)日：2024-06-04

申请号：US17134670

申请日：2020-12-28

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Fangjie Nie ,  Toshinari Yamaoka ,  Haishen Xu ,  Qingsong Sun ,  Dezhong Yang ,  Chao Xian

IPC: A01D34/74 ,  A01D34/69 ,  A01D34/68 ,  A01D34/78 ,  A01D69/02 ,  A01D101/00

CPC classification number: A01D34/74 ,  A01D34/69 ,  A01D2034/6843 ,  A01D34/78 ,  A01D69/02 ,  A01D2101/00

Abstract: A hand push lawn mower includes a body including a cutting blade and an operating device for a user to operate and connected to the body. The body includes a deck, a motor, a height adjustment assembly and a grass baffle. The motor is configured to drive the cutting blade to rotate. The height adjustment assembly is used to adjust the deck to move up and down. The grass baffle is configured to prevent grass clippings from splashing towards the back of the hand push lawn mower. When the height adjustment assembly adjusts the height of the deck, a displacement of the grass baffle in a vertical direction is less than a displacement of the deck in the vertical direction.

公开(公告)号：US11737389B2

公开(公告)日：2023-08-29

申请号：US17036677

申请日：2020-09-29

Applicant: Honda Motor Co., Ltd.

Inventor： Christopher W. Vaughn ,  Nathaniel A. Lenfert

IPC: A01D34/74 ,  A01D34/81 ,  A01D34/69 ,  A01D69/06 ,  A01D34/68 ,  B60B7/08

CPC classification number: A01D34/74 ,  A01D34/81 ,  B60B7/08 ,  A01D34/69 ,  A01D69/06 ,  A01D2034/6837

Abstract: A lawn mower includes a blade housing and a height adjusting mechanism for adjusting a height of the blade housing with respect to the associated ground. The height adjusting mechanism includes rear wheel support members for supporting rear drive wheels. Each rear drive wheel includes a cover having an exterior cover part and an interior cover part. The interior cover part is directly connected to one of the support members without the use of separate associated mechanical fasteners.

公开(公告)号：US11641794B2

公开(公告)日：2023-05-09

申请号：US16662317

申请日：2019-10-24

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Gongyuan Fan ,  Zhen Wang

IPC: A01D34/69 ,  A01D34/68 ,  A01D69/08 ,  F16H3/10 ,  A01D69/06 ,  A01D101/00

CPC classification number: A01D34/69 ,  A01D34/6812 ,  A01D34/6818 ,  A01D69/06 ,  A01D69/08 ,  F16H3/10 ,  A01D2101/00

Abstract: A walk-behind machine includes a clutch having a driving state where a motor drives wheels to rotate and an unlocked state where the wheels freely rotate relative to the motor. The clutch includes a movable member and a driving member. The movable member is capable of moving between a locked position where the clutch is in the driving state and an unlocked position where the clutch is in the unlocked state. The driving member transfers power to the wheels by means of friction. When the clutch is in the driving state, the motor drives the wheels to rotate in a first direction, when the motor stops rotating, the wheels rotate in a second direction opposite to the first direction and can drive the driving member to move by frictional force so that the driving member pushes the movable member to move from the locked position to the unlocked position.

公开(公告)号：US20180320762A1

公开(公告)日：2018-11-08

申请号：US15773353

申请日：2016-11-01

Applicant: HUSQVARNA AB

Inventor： David BAKER

IPC: F16H7/08 ,  A01D34/69 ,  F16H9/26 ,  A01D34/68

CPC classification number: F16H7/0827 ,  A01D34/6806 ,  A01D34/6812 ,  A01D34/69 ,  A01D2034/6837 ,  A01D2034/6843 ,  A01D2101/00 ,  F16H9/26

Abstract: A lawn mower (10) may include a blade housing (20), an engine (30), a mobility assembly (310); and a drive system (300). The engine (30) may be operably coupled to the blade housing (20) and configured to selectively rotate a drive shaft (130). The mobility assembly (310) may include a first set of wheels (40, 42) and be selectively operably coupled to the engine (30) to provide mobility of the lawn mower responsive at least in part to operation of the engine (30). The drive system (300) may include a first transmission (110, 120), a flexible driving member (100), a disengagement assembly (116), and a remote actuator. The a disengagement assembly (116) may include a latching lever (125), where the latching lever (125) is configured to switch the first transmission (110, 120) between a disengaged mode and an engaged mode, and where the latching lever (125) is configured to move between a disengaged position corresponding to the disengaged mode and an engaged position corresponding to the engaged mode. The remote actuator may be operably coupled to the flexible driving member (100), where responsive to actuation of the remote actuator, the flexible driving member (100) engages a) the latching lever (125) to move the latching lever (125) to the engaged position to thereby place the first transmission (110, 120) in the engaged mode; and b) the first transmission (110, 120) to provide drive power from the drive shaft (130) to the first set of wheels (40, 42).

公开(公告)号：US10080327B2

公开(公告)日：2018-09-25

申请号：US15468355

申请日：2017-03-24

Applicant: HUSQVARNA AB

Inventor： John Helgesen ,  Eric Lennings ,  Robert Fancher ,  Matthew Lambert

IPC: A01D34/68 ,  F16H7/02 ,  A01D34/81 ,  F16H7/08 ,  A01D101/00

CPC classification number: A01D34/6812 ,  A01D34/69 ,  A01D34/81 ,  A01D2101/00 ,  F16H7/02 ,  F16H7/0827

Abstract: A drive system includes a first transmission, a second transmission and at least one flexible driving member. The first transmission is operably coupled to a first set of wheels to provide drive power to the first set of wheels responsive to engagement of the first transmission. The second transmission is operably coupled to a second set of wheels to provide drive power to the second set of wheels responsive to engagement of the second transmission. The at least one flexible driving member is operably coupled to a remote actuator and a drive shaft of the walk-behind outdoor power equipment device. The at least one flexible member selectively engages one of the first transmission or the second transmission to switch a walk-behind outdoor power equipment device between all wheel drive operation and another drive mode via the remote actuator.

公开(公告)号：US20170367265A1

公开(公告)日：2017-12-28

申请号：US15195648

申请日：2016-06-28

Applicant: The Toro Company

Inventor： Chris A. Wadzinski ,  Chadwick A. Shaffer ,  Todd A. Porter ,  Jackie R. Gust

IPC: A01D69/00 ,  A01D34/00 ,  A01D34/64 ,  A01D34/71 ,  A01D34/81 ,  A01D101/00

CPC classification number: A01D34/71 ,  A01D34/005 ,  A01D34/64 ,  A01D34/69 ,  A01D34/81 ,  A01D34/824 ,  A01D69/00 ,  A01D2101/00

Abstract: A walk power mower has a traction drive system that includes a front transmission powering a pair of front wheels and a rear transmission powering a pair of rear wheels. A first one of the transmissions provides forward motion of the mower when it is active and a second one of the transmissions provides rearward motion of the mower when it is active. A slidable handle grip on the handle having a cross bar long enough to be gripped by both hands of the user activates the first one of the transmission when it is slid downwardly on a handle out of a neutral position thereof. The slidable handle grip activates the second one of the transmissions when it is slid upwardly on the handle out of the neutral position.