Patent ID: 6023847
Filing Date: 2000-02-15
Classification: A01D

Abstract:
An apparatus for cutting vegetation along a cutting plane, said apparatus having:a spool rotating around a rotation axis extending substantially perpendicular to the cutting plane, said spool including a spool housing with an inserted spool element onto which at least two cutting threads are wound, each said cutting thread protruding out of the spool housing with an unwound cutting portion able to spin around the rotation axis in the cutting plane; anda gearhead located above the spool housing, the gearhead having a rotating driveshaft directed to the spool and a protective disk that covers the portion of the gearhead adjacent the spool, wherein the driveshaft and the protective disk are fastened together so as to rotate in unison,wherein the spool element is provided with pegs which engage recesses formed in the spool housing and is displaceable away from the spool housing along a driving pin connected coaxially with the driveshaft for adjusting the cutting portions of the cutting threads, a spring is provided which, at one end, abuts a nut which is screwed onto a threaded portion of the driving pin and, at a second end opposed to the first end, presses the spool element against the spool housing and the spool housing is mounted axially displaceably on the driving pin and cooperates with a polygon on the driving pin to rotate in unison with the driving pin, the improvement comprising:a plant deflecting ring is provided which is coaxial with the rotation axis and which has a first face positioned against the protective disk on the gearhead and a second face opposite the first face which is positioned against an adjacent wall of the spool housing.