Reel to bedknife adjustment system
US4335569A · kind A · utility
43Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1980 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Oct 22, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reel type mower (2) has a rotatable cutting reel (4) and a cooperating bedknife (8). A control system (30) automatically positions the bedknife (8) relative to the cutting reel (4). An electrical potential is normally maintained between the bedknife (8) and reel (4). The control system (30) monitors this electrical potential and counts the number of times the electrical potential disappears during a predetermined time interval. If the counted value is different from the reference value, an actuator (32) turns an adjustment shaft (42) to change the position of bedknife (8) relative to reel (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.