Three-function control mechanism employing a single control lever
US5429037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20201
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention provides a three-function control mechanism that employs a single control lever for controlling a first, a second and a third actuator and which may be used in connection with a bulldozer. The control mechanism includes a control bracket, a control lever, and first, second, third, and fourth bellcranks supported by the control bracket. The control mechanism further includes first, second, and third linkage that interconnect the control lever, through the bellcranks, to respective ones of the first, second, and third actuators. Due to the supporting arrangement of the control lever, bellcranks, and linkage, the control lever may be moved forward or backward, twisted clockwise or counterclockwise, or moved side to side either separately or in unison. In doing so the control lever thereby respectively actuates the first, second, and third actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.