Patent ID: 6684614
Filing Date: 2004-02-03
Classification: A01D

Abstract:
A trimmer unit, attachable to the free end of a vehicle mounted boom, comprising:a rigid frame having means for glidingly supporting said trimmer unit on the surface of the ground; a cutter head having a power driven vegetation cutter; linkage means connected to said rigid frame and said cutter head permitting said cutter head to move relative to the rigid frame against means for biasing the cutter head in a direction outwardly away from said rigid frame; means carried by said rigid frame and connected to said cutter head for controlling movement of said cutter head relative to said rigid frame; said power driven vegetation cutter, during use, rotates in a generally horizontal plane and said means for controlling movement of the cutter head relative to said rigid frame comprises remotely actuated power means to controllably pivot the cutter head with respect to said horizontal plane, said power driven vegetation cutter including a power driven shaft, a reel mounted on said shaft and a string line wound said reel and having a free end portion extending therefrom, and said reel having a width approximately the same as but slightly greater than the diameter of said string line limiting said diameter of said string line to a single layer spiral winding on said reel.