Outdoor power machine

Patent metadata

Field	Value
Publication number	US-2025081885-A1
Application number	US-202218564804-A
Country	US
Kind code	A1
Filing date	Sep 6, 2022
Priority date	Sep 6, 2022
Publication date	Mar 13, 2025
Grant date	—

Abstract

An outdoor power machine includes a chassis including first and second main frame rails; two or more drive wheel assemblies physically mounted to the chassis, each drive wheel assembly coupled to an electric motor; an electrical power pack configured to supply electric energy to the electric motors; at least one steer wheel pivotally mounted to the chassis; a mowing deck assembly; and a deck lift connecting the mowing deck assembly to the chassis, the deck lift including: a first lift assembly connected to the first main frame rail of the chassis at a first rotation point; a second lift assembly connected to the second main frame rail of the chassis at a second rotation point; wherein the first and second lift assemblies are separated at the first and second rotation points and the first and second rotation points are not interconnected.

First claim

What is claimed is:

1 . An outdoor power machine, comprising:
a chassis including first and second main frame rails; two or more drive wheel assemblies physically mounted to the chassis, each drive wheel assembly coupled to an electric motor; an electrical power pack configured to supply electric energy to the electric motors; at least one steer wheel pivotally mounted to the chassis; a mowing deck assembly; and a deck lift connecting the mowing deck assembly to the chassis, the deck lift including:
a first lift assembly connected to the first main frame rail of the chassis at a first rotation point;
a second lift assembly connected to the second main frame rail of the chassis at a second rotation point;
wherein the first and second lift assemblies are separated at the first and second rotation points and the first and second rotation points are not interconnected.

2 . The outdoor power machine of claim 1 , wherein the electric power pack is positioned between the first and second main rails.

3 . The outdoor power machine of claim 2 , wherein a portion of the electric power pack is positioned below a lower surface of the first and second main rails.

4 . The outdoor power machine of claim 2 , wherein a portion of the electric power pack is positioned flush with a lower surface of the first and second main rails.

5 . The outdoor power machine of claim 1 , wherein a first end of the first lift assembly is connected to the first main rail of the chassis at the first rotation point and the first end of the second lift assembly is connected to the second main rail of the chassis at the second rotation point.

6 . The outdoor power machine of claim 1 , wherein a second end of the first lift assembly is connected to a second end of the second lift assembly by a connector extending therebetween.

7 . An outdoor power machine, comprising:
a chassis including first and second main frame rails; two or more drive wheel assemblies physically mounted to the chassis, each drive wheel assembly coupled to an electric motor; an electric power pack configured to supply electric energy to the electric motors; at least one steer wheel pivotally mounted to the chassis; a mowing deck assembly; and a deck lift connecting the mowing deck assembly to the chassis, the deck lift including:
a first lift assembly having a first end pivotally connected to the first main frame rail of the chassis at a first rotation point;
a second lift assembly having a first end pivotally connected to the second main frame rail of the chassis at a second rotation point;
a connector extending between a second end of the first lift assembly and a second end of the second lift assembly to interconnect the second end of the first lift assembly and the second end of the second lift assembly;
wherein the first and second lift assemblies are separated at the first and second rotation points.

8 . The outdoor power machine of claim 7 , wherein the electric power pack is positioned between the first and second main rails.

9 . The outdoor power machine of claim 8 , wherein a portion of the electric power pack is positioned below a lower surface of the first and second main rails.

10 . The outdoor power machine of claim 8 , wherein a portion of the electric power pack is positioned flush with a lower surface of the first and second main rails.

11 . The outdoor power machine of claim 7 , wherein the first lift assembly includes:
a first bell crank at the first end of the first lift assembly; a second bell crank at the second end of the first lift assembly; and a central arm extending between and pivotally connecting the first and second bell cranks.

12 . The outdoor power machine of claim 11 , wherein the first bell crank connects the first lift assembly to the first main rail and the second bell crank is connected to a first end of the connector.

13 . The outdoor power machine of claim 7 , wherein the second lift assembly includes:
a third bell crank at the first end of the second lift assembly; a fourth bell crank at the second end of the second lift assembly; and a central arm extending between and pivotally connecting the third and fourth bell cranks.

14 . The outdoor power machine of claim 13 , wherein the third bell crank connects the second lift assembly to the second main rail and the fourth bell crank is connected to a second end of the connector.

15 . The outdoor power machine of claim 13 , further including a hand lever pivotally connected to the chassis and configured to lift the mowing deck assembly, the hand lever being connected to the third bell crank by a hand lever extension member.

16 . An outdoor power machine, comprising:
a chassis including first and second main frame rails; two or more drive wheel assemblies physically mounted to the chassis, each drive wheel assembly coupled to an electric motor; an electric power pack configured to supply electric energy to the electric motors; at least one steer wheel pivotally mounted to the chassis; a mowing deck assembly; an electric power pack positioned between the first and second main rails; and a deck lift connecting the mowing deck assembly to the chassis, the deck lift including:
a first lift assembly having a first end pivotally connected to the first main frame rail of the chassis at a first rotation point;
a second lift assembly having a first end pivotally connected to the second main frame rail of the chassis at a second rotation point;
a connector extending between a second end of the first lift assembly and a second end of the second lift assembly to interconnect the second end of the first lift assembly and the second end of the second lift assembly;
wherein the first and second lift assemblies are separated at the first and second rotation points.

17 . The outdoor power machine of claim 16 , wherein the electric power pack is positioned between the first and second rotation points.

18 . The outdoor power machine of claim 16 , further including a spring configured to assist in the lifting of the mowing deck assembly.

19 . The outdoor power machine of claim 16 , further including a foot pedal connected to the deck lift to lift the mowing deck assembly.

20 . The outdoor power machine of claim 16 , further including a hand lever connected to the deck lift to lift the mowing deck assembly.

Assignees

• Greenworks Jiangsu Co Ltd

Inventors

• Wei Qunli
• Eichel Christopher
• Shi Qinghua
• Shi Dongdong

Classifications

• A01D2101/00

  Lawn-mowers · CPC title

• A01D34/78

  electric · CPC title

• A01D34/66

  with two or more cutters · CPC title

• A01D69/02

  electric · CPC title

• A01D67/00

  Undercarriages or frames specially adapted for harvesters or mowers (coupling arrangements between animal or tractor and harvester or mower A01B59/00); Mechanisms for adjusting the frame (adjusting devices for the cutter-bar A01D34/28); Platforms · CPC title