Fixed line head for flexible line rotary trimmers
US8973274B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2013 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Aug 19, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/4166
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A trimmer head for use with a plurality of lengths of flexible cutting line in a flexible line rotary trimmer having a plurality of line holders rotatably mounted thereon. Each line holder defines a pair of laterally spaced apertures in an upper surface thereof, a passageway extending longitudinally therethrough, terminating in an extended end thereof and communicating with the laterally spaced apertures. An interior guide surface extends along a curvilinear path from the spaced apertures to the passageway and a web extends between the apertures whereby end portions of lengths of cutting line can be extended into and through the spaced openings, along the guide surfaces into and through the passageway and outwardly therefrom, whereupon lengths of line extend about and are held against the web with portions of the line projecting from the passageways in the line holders for the cutting of vegetation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.