Dual motor drive system for electrically powered mower
US6253534A · kind A · utility
18Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Apr 27, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A motor for powering a cutting unit in an electric mower. The motor is mounted above the cutting unit. A second motor is provided to drive one or more accessories and is also mounted above the cutting unit. The motors are symmetrically placed toward opposite ends of the cutting unit. The second motor acts as a counterbalance to the first, so the cutting unit has similar weight on both of its ends. This eliminates the need for a torsion spring counterbalance system, allows increased mobility of the cutting unit, and facilitates servicing of the cutting unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.