Patent ID: 6978591

Claim:
A method for constraining and coupling a TTS (Tree-Trunk Shaker) by a rear of a linking portion to a vehicle, the TTS comprising: tree-trunk jaws which perpendicularly clamp a tree trunk on diametrically opposite sides of the trunk, a linear vibration generator coupled to the tree-trunk jaws for shaking the trunk laterally perpendicular to both the trunk and the tree-trunk jaws, the linking portion being disposed in longitudinal coextension with the tree-trunk jaws, the linking portion comprising a front end and rear end, the front end and rear end being defined as, respectively, the side nearer the trunk and the side nearer the vehicle, and a coupling portion comprising a front attachment and a rear attachment, the front attachment being coupled to the rear end of the linking portion and the rear attachment being fixedly attached to the vehicle, the method comprising the steps of: constraining the TTS to shake the trunk in one single lateral degree of freedom of motion in operative association with at least one vertical pivot coupling the rear of the linking portion to the vehicle, coupling the front portion to the front end of the linking portion by a first vertical pivot coupling, and coupling the rear end of the linking portion to the front attachment of the coupling portion by a second vertical pivot coupling, thereby constraining the TTS to a single lateral degree of freedom of motion about a first and a second vertical pivot.