Agricultural apparatus with an automatic positioning mechanism and method
US4607716A · kind A · utility
Inventor
Key dates
| Filing date | Oct 14, 1983 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Oct 14, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B69/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Automatic steering mechanism for use on apparatus for forming raised beds or ridges and furrows and lowered beds with uniform spacing with the apparatus being of a type comprising a self-propelled vehicle having a steering apparatus for steering the vehicle and a ground engaging implement carried by the vehicle for forming a guiding surface, such as provided by a ridge or furrow in the ground along the path of travel of the vehicle as the vehicle moves. The steering mechanism comprises a framework adapted to be secured to the vehicle. In one form, it also comprises a boom structure mounted on the framework for pivotal movement about a horizontal axis extending longitudinally of the vehicle; and an arm, pivotally mounted on the outer extremity of the boom structure for pivotal movement. A follower carried by the arm follows the guide surface formed in the ground. An electrical circuit is provided responsive to movement of said arm from its generally vertical position to control the movement of a steering assembly whereby movement of said arm causes operation of the steering assembly to automatically steer the vehicle in accordance with the movement of the follower. In another arrang…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.