Variable speed control systems and methods for walk-behind working machines
US9470305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2014 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Jul 6, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2014
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Variable speed control systems and methods for walk-behind working machines, such as lawnmowers and similar powered machines, can include a control lever with a lever arm that is selectively pivotable with respect to a machine handle between a first angular position at which a grip portion of the control lever is spaced apart from the handle by a first angle and a second angular position at which the control lever is proximate to the handle to control the working machine to be in one of a range of operating states corresponding to the angular position of the control lever. A control lever adjustment system is configured to selectively adjust the first angle to adjust a total possible angular travel of the control lever between the first angular position and the second angular position. In this way, an operator can set a range of operating states of the working machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.