Weed and grass trimmer

Details Weed and grass trimmer Weed and grass trimmer

A - Human Necessities

01

G

A01G 3/06 (2006.01) A01D 34/416 (2006.01) A01D 34/84 (2006.01) B26B 27/00 (2006.01)

Patent

CA 2346536

A weed and grass trimmer (10) has a cutting line (24) which is fed as the weed trimmer (10) is in use. The weed trimmer's cutting head (16) includes a spool (22) for cutting line (24), and a housing (26). The spool (22) has flanges, (30), around its circumference, which may engage a corresponding upper (32) or lower (34) set of flanges in the housing (26). Actuation of a control located near the handle (14) operates either a cable (54) or a solenoid (76), causing the spool (22) to reciprocate between the upper (32) and lower (34) flanges. The difference in centrifugal force and angular velocity during this reciprocation causes additional cutting line (24) to be fed.

L'invention concerne un coupe-bordures à fil (10) comportant un fil de coupe (24) qui est chargé lorsque le coupe-bordures à fil (10) est en marche. La tête de coupe (16) de du coupe-bordures à fil comporte une bobine (22) de fil de coupe (24) et un corps (26). La bobine (22) présente, sur son pourtour, des flasques (30) qui peuvent se mettre en prise avec un ensemble correspondant de flasques supérieurs (32) ou inférieurs (34) du corps (26). Le déclenchement d'une commande située à proximité de la poignée (14) actionne un câble (54) ou un solénoïde (76), provoquant un mouvement de va-et-vient de la bobine (22) entre les flasques supérieurs (32) et inférieurs (34). La différence de force centrifuge et de vitesse angulaire au cours de ce mouvement de va-et-vient provoque un apport supplémentaire de fil de coupe (24).

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