Hedge clipper
US6178642A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G3/053
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The motor-driven hedge clipper has a machine housing; a main handle provided with one switch button; a hollow U-shaped auxiliary handle and a single deadman switch operating mechanism for turning off the hedge clipper when not activated by an operator. The single deadman switch operating mechanism includes one and only one U-shaped button element movably mounted in the auxiliary handle and extending around the inner contour of the U-shaped auxiliary handle, so as to be movable radially outward and inward relative to the auxiliary handle in all directions; a mechanical biasing device for urging the button element radially outward, whereby the button element moves radially outward when not being pressed radially inward into the auxiliary handle; and a cable line arranged in the auxiliary handle and connected to the button element, so that it moves exclusively longitudinally when the button element is moved radially inward in any direction so that the deadman switch operating mechanism is activated and the hedge clipper is turned on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.