Draft sensing device including load pin with free end
US4271910A · kind A · utility
13Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Jul 2, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/112
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved draft sensing device for a tractor draft control system, the draft sensing device including a tapered load pin having its large end rigidly attached to the tractor and its free end pivotally carrying the tractor draft link through a load arm which imposes a torsional load on the load pin in proportion to the draft load. A bracket secured to the load arm amplifies and measures the load pin motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.