Portable trimmer
US6065214A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A braking device of a portable trimmer according the present invention comprises a cylindrical brake drum portion provided around a cutter blade retainer, an anti-rotation device, and a brake shoe provided inwardly of the brake drum portion and supported by a support shaft. The brake shoe extends along an inner surface of the brake drum portion so that the distance between the support shaft and the line tangent to the middle portion of the brake shoe exceeds the radius of the inner wall surface of the brake drum portion. An anti-rotation device is installed in a vacant space within a gear case and inwardly of the brake drum portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.