Lawn mower with rear cover for selectively driving a baffle

Patent metadata

Field	Value
Publication number	US-12178159-B2
Application number	US-202318143054-A
Country	US
Kind code	B2
Filing date	May 3, 2023
Priority date	Dec 10, 2019
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A lawn mower comprises a power assembly, a cutting blade driven by the power assembly, and a cover, wherein the cover comprises a main body, a rear cover pivotally connected to the rear of the main body, and a partition portion dividing the main body into a cutting cavity and a grass-collecting cavity, the partition portion comprising a baffle, the rear cover is selectively pivotal between an open position and a closed position. The baffle is driven by the rear cover.

First claim

What is claimed is:

1. A lawn mower comprising:
a power assembly;
a cutting blade driven by the power assembly;
a limiting assembly; and
a cover,
wherein the cover comprises a main body, a rear cover pivotally connected to the rear of the main body, and a partition portion dividing the main body into a cutting cavity and a grass-collecting cavity, the partition portion comprising a baffle,
the rear cover is selectively pivotal between an open position and a closed position,
the baffle is driven by the rear cover,
the limiting assembly comprising a groove provided below the baffle and a hook provided in the grass-collecting cavity and cooperating with the groove,
when the hook is locked in the groove, the flip of the rear cover cannot move the baffle,
when the hook is separated from the groove without being locked, the flip of the rear cover can drive the movement of baffle.

2. The lawn mower according to claim 1 , wherein the rear cover is rotated between the open position and the closed position, and a rear opening is provided at the rear of the grass-collecting cavity, when the rear cover being flipped up to the open position, the rear opening being opened, when the rear cover being flipped down to the closed position, the rear opening being closed.

3. The lawn mower according to claim 2 , wherein when the rear cover is flipped to the open position, the baffle is moved to a connected position, and the cutting cavity is in communication with the grass-collecting cavity, when the rear cover being flipped to the closed position, the baffle moving to a separated position, and the cutting cavity being separated from the grass-collecting cavity.

4. The lawn mower according to claim 1 , wherein a side opening is provided on one side of the cutting cavity, and a reversible side cover and a side detachable pipe are provided at the side opening.

5. The lawn mower according to claim 1 , wherein the baffle is connected to the rear cover through a transmission assembly, and the transmission assembly includes a rotating shaft provided on the rear cover, a gear bar arranged on the baffle and a transmission member arranged in the grass-collecting cavity.

6. The lawn mower according to claim 5 , wherein the transmission member comprises a housing, an input gear, an output gear, and an intermediate gear located between the input gear and the output gear, the input gear, the output gear and the intermediate gear are received in the housing, and the input gear is sleeved on the rotating shaft, the output gear being coupled with the gear bar, and the rotating shaft and the longitudinal axis of the output gear being arranged perpendicular to each other.

7. The lawn mower according to claim 6 , wherein the input gear and the intermediate gear are a pair of matched bevel gears, and the intermediate gear and the output gear have two opposed friction surfaces, a cushion ring and a spring being provided below the output gear, the cushion ring being located between the output gear and the spring, and the spring being located between the housing and the cushion ring.

8. The lawn mower according to claim 5 , wherein the rear cover is pivotally connected to the main body through the rotating shaft, a spring is sleeved on the rotating shaft, and the spring is located between the rear cover and the main body.

9. The lawn mower according to claim 2 , further comprising a grass collecting bag, and when the rear cover is in the open position, the grass collecting bag is assembled to the rear opening of the grass-collecting cavity.

10. The lawn mower according to claim 3 , wherein the main body comprises a fixing portion and a partition plate, and the partition plate and the baffle form the partition portion, when the baffle being moved to the connected position, the partition plate overlaps the baffle, when the baffle being moved to the separated position, the partition plate and the baffle being staggered.

11. The lawn mower according to claim 10 , wherein the fixing portion is provided with a slide, the upper and lower ends of the baffle are provided with sliders, and the sliders are installed in the slide and move along the slide.

Assignees

• Greenworks Jiangsu Co Ltd

Inventors

• Wei Lv

Classifications

• A01D34/71

  with means for discharging mown material (A01D57/26 - A01D57/30 take precedence; combined with means for gathering or loading mown material A01D43/06) · CPC title

• A01D34/81 Primary

  Casings; Housings (A01D34/71 takes precedence) · CPC title

• A01D42/005

  Mulching (shredders or like cutting implements for comminuting plant waste per se A01G3/002) · CPC title

• A01D2101/00

  Lawn-mowers · CPC title

• A01D69/06

  Gearings · CPC title