Rotary cutting assembly with mechanical line feed
US4136446A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Jan 24, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/4161
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vegetation cutter and method employing a revolving flexible non-metallic line as a cutting member is provided with means for mechanically feeding out additional line to replace lengths broken during operation of the cutter. A rotatable spool is provided for storing extra line in a coiled configuration, with the unwound portion being extended from the rotatable head of the cutter to an exit aperture at its periphery. A control mechanism provides for moving angularly the spool an incremental distance within the rotating head to feed out an increment of line only when desired. Means secure the spool in the head to prevent inadvertent unreeling of cutting line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.