| 主权项 |
1. A trimmer head for use with a plurality of fixed lengths of flexible cutting line in a flexible line rotary trimmer, said head comprising:
a housing defining a mounting hub, an annular upper surface extending about said mounting hub, a depending skirt extending about the perimeter of said annular surface and means associated with said mounting hub for securing said head to a rotary trimmer; and a plurality of line holders rotatably mounted on and equiangularly disposed about said upper annular surface of said housing, each of said line holders defining a pair of laterally spaced openings in the upper surface thereof, a passageway extending longitudinally through a portion of said line holder and terminating in an extended end thereof, each of said apertures communicating with said passageway, a guide surface disposed within said line holder, said guide surface extending along a curvilinear path from said apertures to said passageway, and a web disposed between said apertures whereby upon urging opposed end portions of a length of cutting line into and through said openings, said end portions are directed by said guide surface into and through said passageway and outwardly therefrom through said extended end of said line holder such that upon said end portions being pulled longitudinally from said line holder, said line is caused to extend about and against said web and along said curvilinear path, thereby securing said line to said line holder such that first and second portions of said line project from said passageway in said line holder for the cutting of vegetation and a third portion of said line is positioned exteriorly adjacent to said web for access thereto whereby said third portion can be gripped and pulled from said line holder to effect removal and replacement of the line as necessary. |
