Patent ID: 6631608
Filing Date: 2003-10-14
Classification: A01D

Abstract:
A vehicle comprising:a vehicle frame, a plurality of elongate rail members mounted in fixed position with respect to the vehicle frame and oriented at an angle to a surface of the ground, a tool frame to which is coupled a tool attachment, said tool frame having a plurality of bars oriented in alignment with the rail members and shiftably supported by respective rails and linearly shiftable in operative engagement with said rails between retracted operating positions whereat the tool attachment is in an operating position in close proximity to the vehicle, and extended maintenance positions whereat the tool attachment is shifted upward and outwardly from the vehicle frame for providing access to the tool attachment, a synchronizer operatively extending between respective bars and which causes said bars to shift in unison relative to the respective rails wherein the synchronizer further comprises a plurality of wheels in engagement with respective bars, and a shaft supported by the vehicle and to which the wheels are fixed, said wheels and shaft rotate in unison to synchronize the shifting of the bars with respect to the rails, and wherein the wheels include gear teeth which engage toothed racks on the respective bars.