Line trimmer for cutting vegetation

Details Line trimmer for cutting vegetation Line trimmer for cutting vegetation

A - Human Necessities

01

D

56/36

A01D 34/84 (2006.01) A01D 34/416 (2006.01) A01D 34/73 (2006.01) A01G 3/06 (2006.01)

Patent

CA 1265934

-1- ABSTRACT A line trimmer for cutting vegetation has features to enable automatic advancement of line increments while rotating. The trimmer has a housing with an aperture on its periphery. A spool coiled with a flexible cutting line is located in the housing. The free end of the line extends out of the aperture into a cutting plane. A set of stop members is located in the housing near the centre in a circular array. A link is carried in the housing radially outward from the stop members. When the link is in contact with one of the members the spool and housing are locked together for rotation. Increased centrifugal force urges the drive link outwardly, allowing the spool and housing to slip relative to each other to feed out additional line. Cam members are located on the inner side of the housing outer wall. These cam members stop further slippage by forcing the link back into engagement with the stop members.

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