Cutlery – Blades – Rotary
Patent
1983-09-02
1986-02-11
Peters, Jimmy C.
Cutlery
Blades
Rotary
56 127, A01D 3484, A01D 5500
Patent
active
045691347
ABSTRACT:
This invention relates to a trimming cord for a cutter which cuts weeds or the like. In accordance with the invention, rotary discs provided on the output shaft of gearing are shaped like a reel and elongated wire-like trimming cords are wound onto it in the direction opposite to the direction of rotation of the reel-shaped rotary discs. A plurality of guide support rods are positioned equidistantly around an outer circumferential opening of the reel-shaped rotary discs so that the wire-like trimming cords wound onto the reel-shaped rotary disc are thrown outward from the outer circumferential opening of the rotary discs and are rotated by the centrifugal force of the rotation of the rotary discs. During repeated cutting of weeds and the like, the wire-like trimming cords gradually wear out and their ends become shorter so that each trimming cord gradually approaches the guide support rod supporting its base portion. In this case, since centrifugal force is always applied to the wire-like trimming cords, each trimming cord escapes from the guide support rod supporting it and, while supported at a suitable position by another guide support rod adjacent to the previous one in the rotational direction, it can be thrown automatically outward from the circumferential opening of the reel-shaped rotary discs. Hence the cutting can be performed continuously.
REFERENCES:
patent: 3781991 (1974-01-01), Stretton
patent: 4148141 (1979-04-01), Hoff
patent: 4250623 (1981-01-01), Pittinger
patent: 4301642 (1981-11-01), Thurber
patent: 4316325 (1982-02-01), Brucker
Kabushiki Kaisha Marunaka Seisakusho
Peters Jimmy C.
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