String trimmer head

Details String trimmer head String trimmer head

1997-08-29

1999-05-11

Payer, Hwei-Siu

Cutlery

Cutting tools

With blade moving means

30347, 56295, A01D34/73;55/00

Patent

active

059014482

ABSTRACT:
A string cutter head for weed trimmers comprises a solid seamless hub having an upper disk and a lower disk. The lower disk comprises at least two pairs of vertically drilled holes for installation of a monofilament cutting string. The upper disk acts as a spacer from the trimmer housing to allow installation and removal of cutting string without removal of the cutting head from the weed trimmer. Several holes of different diameters may be used for different diameter strings. The hub comprises a threaded connection for attachment to the shaft end of the trimmer. In the preferred embodiment, the hub is machined from aluminum alloy.

REFERENCES:
patent: 4062114 (1977-12-01), Luick
patent: 4905465 (1990-03-01), Jones et al.
patent: 5048278 (1991-09-01), Jones et al.
patent: 5197264 (1993-03-01), Lacey
patent: 5313770 (1994-05-01), Smothers
patent: 5398416 (1995-03-01), Mackey
patent: 5615543 (1997-04-01), Caffey et al.
patent: 5713191 (1998-02-01), Welton

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