US 11,026,366 B2Granted

Power equipment

AssigneeHonda Motor Co., Ltd.

InventorsJun Fukano, Masato Takeda, Keisuke Muraoka

Life of this patent

Estimating the term…

Loading patent…

Abstract

Walk-behind power equipment includes: a main body provided with at least one front wheel and left and right rear wheels and a work unit; travel motors provided for the respective rear wheels; a handle extending from the main body rearward and upward; at least one of a tilt angle detector that detects a tilt angle of the main body and a load detector that detects a downward load applied to the handle; a yaw rate detector that detects a yaw rate; and a control unit that drive-controls the travel motors. The control unit determines whether the main body is in a rearward tilted state based on the tilt angle or the downward load, and if it is determined that the main body is not in the rearward tilted state, performs straight-line travel control to set a rotational speed difference between the travel motors to reduce the yaw rate.

Claims6

Dependent claims

Walk-behind power equipment, comprising:

a main body provided with at least one front wheel and a pair of left and right rear wheels;
a work unit provided on the main body;
a pair of left and right travel motors provided for the respective rear wheels;
a handle connected to the main body and extending rearward and upward;
a tilt angle detector that detects a tilt angle of the main body;
a yaw rate detector that detects a yaw rate generated on the main body;
and
a control unit that drive-controls the travel motors,
wherein the control unit determines whether the main body is in a rearward tilted state based on the tilt angle, and if it is determined that the main body is not in the rearward tilted state, the control unit performs straight-line travel control to set a rotational speed difference between the left and right travel motors to reduce the yaw rate, and if it is determined that the main body is in the rearward tilted state, the control unit does not perform the straight-line travel control.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/342,483Filed 16 Nov 2017
Priority: JP JP2016-22954825 Nov 2016
Published: US 2019/0269068 A15 Sep 2019
Granted: 8 Jun 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A01D 34/006
Mowers ; Mowing apparatus of harvesters: control or measuring arrangements
A01D 34/6806
With motor driven cutters or wheels: driving mechanisms
A01B 33/02
Tilling implements with rotary driven tools , e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping…:…
A01B 33/028
With tools on horizontal shaft transverse to direction of travel: of the walk-behind type

Family

US 2019/0269068 A1Pre-grant publication · published 5 Sep 2019
US 11,026,366 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key