Brush cutting breakaway system

Abstract

Multi-part improvements to brush cutting technology including a breakaway system. A single horizontal pin attaches the cutter head of a brush cutting machine to the boom and a swing tower, so that a single vertical pin can attach the tractor to the boom, the vertical pin and swing tower allowing the cutter head to have a forward and aft movement for flexibility around immovable objects. A breakaway cylinder holds the cutter head at a ninety degree angle relative to the tractor of a brush cutting machine. A control, in the form of a joystick, remotely raises and lowers the cutter head portion using a single control within the cab. A first relief valve bypasses when higher than normal hydraulic pressure is created in the breakaway cylinder and a second relief valve removes excess oil from the breakaway cylinder. A switch, in the form of a toggle switch, remotely operates the breakaway cylinder and moves the cutter head from within the cab. A method for brush cutting with a brush cutting machine having a breakaway system is also disclosed.

Dependencies are inferred from the claim text.