Lawn mower
US-10813285-B2 · Oct 27, 2020 · US
Lawn mower having a maintenance tool for maintaining a cutting blade
US11503768B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11503768-B2 |
| Application number | US-202016800693-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2020 |
| Priority date | Mar 28, 2019 |
| Publication date | Nov 22, 2022 |
| Grant date | Nov 22, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A lawn mower includes: a rotation shaft coupled to a power source and extending in an approximately vertical direction; a blade configured to rotate integrally with the rotation shaft; and a housing having a downward opening and accommodating the blade such that the blade is rotatable; and a maintenance tool provided on the housing, the maintenance tool being contactable with the blade from the above. A cutting portion of the blade is capable of moving between a maintenance position at which the cutting portion is contactable with the maintenance tool and an operating position at which the cutting portion mows a lawn.
First claim
Opening claim text (preview).
What is claimed is: 1. A lawn mower comprising: a rotation shaft coupled to a power source and extending in an approximately vertical direction; a blade configured to rotate integrally with the rotation shaft; a housing having a downward opening and accommodating the blade during the blades rotation; a maintenance tool provided on the housing, the maintenance tool being contactable with the blade from above; and a cutting portion position changing mechanism configured to change a position of a cutting portion of the blade such that the cutting portion has contact with the maintenance tool, wherein the cutting portion of the blade is capable of moving between a maintenance position at which the cutting portion is contactable with the maintenance tool and an operating position at which the cutting portion mows a lawn, wherein the cutting portion position changing mechanism includes a conversion mechanism having a pin and a cam portion, and wherein the conversion mechanism changes the position of the cutting portion between the maintenance position and the operating position by rotating the cam portion with a sliding movement of the pin. 2. The lawn mower according to claim 1 , wherein the blade comprises: a blade body configured to rotate integrally with the rotation shaft; and the cutting portion rotatably provided on the blade body, and wherein the cutting portion is movable between the maintenance position and the operating position by rotating relative to the blade body. 3. The lawn mower according to claim 1 , wherein the maintenance tool is supported on the housing via an elastic member and is capable of adjusting contact pressure to the blade. 4. The lawn mower according to claim 1 , wherein the maintenance tool is a grindstone and the maintenance position is a polishing position. 5. The lawn mower according to claim 1 , wherein the maintenance tool contacts the blade obliquely relative to a rotation direction of the blade during polishing.
Assignees
Inventors
Classifications
Cutting apparatus · CPC title
- A01D75/08Primary
Sharpening apparatus fixed to the harvester or mower · CPC title
Other details · CPC title
mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle · CPC title
Accessories not otherwise provided for · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11503768B2 cover?
- A lawn mower includes: a rotation shaft coupled to a power source and extending in an approximately vertical direction; a blade configured to rotate integrally with the rotation shaft; and a housing having a downward opening and accommodating the blade such that the blade is rotatable; and a maintenance tool provided on the housing, the maintenance tool being contactable with the blade from the…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A01D75/08. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 22 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).