US 2020/0205338 A1 · ZERO TURN RADIUS LAWNMOWER HAVING FRONT AND REAR WHEELS RELATED IN ROTATION ABOUT A SINGLE PIVOT AXIS

Abstract

A ride-on vehicle, such as a zero turn radius lawnmower, includes a main chassis having first and second pivot joints, a in first rocker arm having a caster wheel on a first end portion and a drive wheel on a second end portion, and a second rocker arm having a caster wheel on a first end portion and a drive wheel on a second end portion, wherein the first rocker arm and the second rocker arm are independently pivotally coupled to the respective first and second pivot joints of the main chassis at a location between the caster wheels and the drive wheels. The ride-on vehicle may also include a modular mower deck assembly with a plurality of mower deck modules having a blade assembly, an electric blade motor configured to provide rotation to the blade assembly, and an attachment assembly configured to enable attachment between adjacent mower deck modules.

Claims72

Dependent claims

A modular mower deck for use with a lawnmower, the modular mower deck comprising:

a plurality of mower deck modules, each of the mower deck modules comprising:
a blade assembly, the blade assembly comprising at least one mower blade;
an electric blade motor configured to provide rotation to the blade assembly;
and
an attachment assembly configured to enable attachment between adjacent mower deck modules;
wherein at least one of the plurality of mower deck modules is configured to be removably attachable to another one of the plurality of mower deck modules.

3 more elements

An outdoor power equipment device comprising:

a main chassis, the main chassis having a first pivot joint on a first lateral side and a second pivot joint on a second lateral side opposite the first pivot joint on the first lateral side, wherein the first pivot joint and the second pivot joint share a common axis;
a first rocker arm having a first wheel rotatably coupled at a first end portion and a second wheel rotatably coupled at a second end portion, the first rocker arm pivotally coupled to the first pivot joint of the main chassis at a location between the first wheel and the second wheel;
a second rocker arm having a first wheel rotatably coupled at a first end portion and a second wheel rotatably coupled at a second end portion, the second rocker arm pivotally coupled to the second pivot joint of the main chassis at a location between the first wheel and the second wheel;
and
an operator seat extending from the main chassis at least partially between the second wheel rotatably coupled to the first rocker arm and the second wheel rotatably coupled to the second rocker arm,
wherein an operator is configured to be seated on the operator seat at a position displaced from a centerline radial axis of each of the second wheels such that vertical force imparted on the second wheels is not in line with the operator's seated position.

3 more elements

A ride-on vehicle comprising:

a main chassis, the main chassis having a first pivot joint on a first side and a second pivot joint on a second side opposite the first pivot joint on the first side;
a first sectioned rocker arm assembly having a front end portion and a rear end portion, wherein the rear end portion is separate from the front end portion and the first sectioned rocker arm assembly is pivotally coupled to the first pivot joint of the main chassis;
a second sectioned rocker arm assembly having a front end portion and a rear end portion, wherein the rear end portion is separate from the front end portion and the second sectioned rocker arm assembly is pivotally coupled to the second pivot joint of the main chassis;
a first caster wheel rotatably coupled to the front end portion of the first sectioned rocker arm assembly;
a second caster wheel rotatably coupled to the front end portion of the second sectioned rocker arm assembly;
a first drive wheel rotatably coupled to the rear end portion of the first sectioned rocker arm assembly;
and
a second drive wheel rotatably coupled to the rear end portion of the second sectioned rocker arm assembly.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/639,104Filed 16 Aug 2018

Priority

16 Aug 2017

Published

2 Jul 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification28 codes

A01D 34/66
Mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle: with two or more cutters
A01D 34/661
With two or more cutters: mounting means
A01D 34/008
Control or measuring arrangements: for automated or remotely controlled operation
A01D 34/71
Having cutters rotating about a vertical axis: with means for discharging mown material

Zero turn radius lawnmower having front and rear wheels related in rotation about a single pivot axis

Life of this patent

Zero turn radius lawnmower having front and rear wheels related in rotation about a single pivot axis

Life of this patent

Abstract

Claims72