Safety device for walk-behind rotary mowers
US4003190A · kind A · utility
32Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1975 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Aug 7, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a walk-behind rotary lawn mower powered by a gasoline engine, two pushbutton-type switches are so connected in the engine ignition circuit that at least one must be actuated for the engine to run. One switch comprises a dead-man control actuated by gripping the mower guide handle. The other is actuated by a treadle so located on the mower deck as to be depressed by one foot of a person who has his other foot in a safe position and who is operating the engine rope starter in a natural, convenient manner. Depression of the treadle also actuates a brake that prevents the mower from rolling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.