Trimmer head for use in flexible line rotary trimmers having improved line loading mechanism
US7882642B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jun 2, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A trimmer head for use with a length of flexible cutting line in a rotary trimmer comprising a housing operatively connected to the trimmer to effect rotation of the head and a spool for carrying the cutting line thereon. The spool is operatively connected to the housing for rotation therewith and defines a line receptor channel having opposed open ends and traversing the spool. The channel can be aligned with the eyelets in the housing skirt such that cutting line can be inserted therethrough and wrapped about the spool upon relative rotation of the spool and housing without having to interrupt the operative connection therebetween. A central portion of the channel intermediary its open ends is exposed to provide access to the portion of line therein so that line wound about the spool can be pulled from the head without having to interrupt the operative connection therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.