Speed-adjustable self-propelled four-wheel-drive walk-behind lawn mower
US11582906B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Sep 26, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A speed-adjustable self-propelled four-wheel-drive walk-behind lawn mower is provided. The lawn mower may include a cutting deck, an engine installed on the cutting deck including an engine shaft, and a cutting blade installed inside the cutting deck. The lawn mower further includes a first transmission box and a second transmission box. The lawn mower includes an engine pulley installed on the engine shaft, a first combined pulley in communication with the first transmission box, and a second combined pulley in communication with the second transmission box. The lawn mower includes a belt connecting the first combined pulley, the second combined pulley, and the engine pulley. The belt is configured to transmit, via the engine pulley, a driving force from the engine to the first combined pulley and the second combined pulley to rotate the first transmission box and the second transmission box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.