Sequence and timing control for large round baler ejection device
US7472649B1 · kind B1 · utility
23Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2007 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Sep 28, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/3014
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A large round baler is equipped with an ejection ramp which operates such that it moves from a raised home position to a lowered ejection position, only after the discharge gate has moved to a raised discharge position, and moves back to a home position prior to the gate moving back to its lowered baling position. A hydraulic system for actuating a pair of gate cylinders and a single ramp cylinder incorporates a pair of relief valves located between a selective control valve and first chambers of gate and ramp cylinders so as to cause the correct sequence and timing of the movements of the discharge gate and the ejection ramp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.