Structure for attaching a tool to a frame tube
US8322454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B61/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Gang tube rail structure is attached to the lower front and rear corners of the implement gang tube to provide a lower clamp support. Two pivoting clamp jaws are attached to the clamp support and secured against the support by tightening a single clamp bolt extending between the lowermost portions of the jaws. A locator shoe is secured between the tube and the c-spring and includes a protrusion that projects into a hole in the c-spring. The ends of the locator shoe include short legs that wrap around the gang tube rail. The single clamp bolt provides a vertical clamp force that is approximately twice the tension generated in the bolt when the nut is tightened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.