Tractor-supported lawnmower having mowers movable up and down
US6412258B1 · kind B1 · utility
18Cited by
8References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D75/306
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lawnmower with a tractor and a gang of mowers pivotally supported by the tractor for up and down motion when moving on the ground. A mower support arm is pivoted on the tractor and has a pivot axis for each of the mowers, and a camming action is created by the up and down mower movement and that causes the pivot axis to move horizontally relative to the tractor to thereby avoid having the mowers move horizontally, and it maintains a constant spacing between the mowers and avoids having the mowers collide when moving up and down. Shorter length mowers can thus be used in the gang and they follow the ground contour more closely.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.