Cultivator with improved disc positioning means
US4928774A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1987 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Aug 4, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B21/086
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An adjustment means for a cultivator disc which provides lateral, vertical and angular adjustment means. A plurality of discs are mounted in parallel on a gang frame, and may be individually adjusted in the field to exact, predetermined positions established by a positive positioning means, and then firmly held in place by a clamping means. In the presently preferred embodiment, the individual support shafts of each cultivator disc are supported by the angle adjustment brackets, which are supported by the lateral adjustment brackets, which are slidably supported in predetermined fixed positions in lateral housings attached to the main towing bar of the cultivator assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.