Patent ID: 7877971

Claim:
A trimming system for a user-operated ground vehicle capable of performing mowing and trimming operations, said system comprising: drive means operatively coupled to a drive system of the vehicle having said trimming system mounted thereon; a trimming unit operatively coupled to said drive means for performing edge trimming operations, a guide wheel mounted to a vehicle frame adjacent said trimming unit for maintaining said trimming unit at a predetermined distance from a stationary object during performance of said edge trimming operations, said guide wheel being mounted to a first end of a resiliently biased bracket dimensioned to materially deflect, said bracket being rigidly mounted at a second, distal end to the vehicle frame and resiliently biased by a spring mounted between the vehicle frame and said bracket for allowing material and spring biased deflection of said bracket by a predetermined distance under the bias of said spring relative to said trimming unit and the vehicle frame upon contact of said guide wheel with the stationary object; and wherein said trimming unit including a spindle having at least one trimming wire for enabling performance of said edge trimming operations during rotation of said spindle, said spindle being coupled to said trimming unit by a threaded shaft to enable height adjustment of said spindle by rotation of said spindle relative to said shaft.