Combination level adjust and self-tensioning belt assembly for mowers
US4102114A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Aug 10, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S56/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An implement for a tractor is provided with a height adjusting mechanism, including a control lever swingable in a horizontal plane about a fixed vertical axis and operably coupled with an articulate linkage for translating the horizontal swinging of the lever to vertical movement of the implement without creating a force moment thereacross. The articulate linkage spans a pivotal coupling between the main frame of the implement and a mounting bracket secured to the tractor such that the linkage operates to swing the bracket and frame toward and away from one another causing the pivotal coupling to move up and down. A belt drive on the implement is maintained in constant, substantially uniform tension by a shiftable idler pulley operably coupled with the control lever for automatic belt-tension adjustment in response to raising and lowering of the implement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.