Method and apparatus for setting and maintaining reel-to-bedknife clearance
US7231757B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2003 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Apr 30, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A control system for a cutting reel unit includes a reel-to-bedknife clearance adjusting system. The reel-to-bedknife clearance adjusting system includes at least one actuator operatively connected between the reel and the bedknife, and a sound detector. A controller is signal-connected to the actuator and the sound detector and coordinates the reel-to-bedknife clearance adjustment. During adjustment, reel-to-bedknife clearance is reduced by the actuator until a contact sound between the reel blades and the bedknife is detected and signaled to the controller, which then reverses the actuator and increases the clearance by a pre-selected precise amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.