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US 12,464,984 B2Granted
Pruning machine
AssigneeF & T Spagnolo Pty Ltd.
InventorFred Spagnolo
Life of this patent
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AssigneeF & T Spagnolo Pty Ltd.
InventorFred Spagnolo
Estimating the term…
A pruning machine (12) for pruning vegetation growing on generally horizontal support wires. The pruning machine (12) includes a vertical shaft (22) mounted for rotation and at least one blade assembly (26) mounted on the shaft (22). The blade assembly (26) includes a plurality of blades (30) mounted to rotate with the shaft (22). The shaft (22) is threaded at least in the region where the blade assembly (26) is mounted. The vertical position of the blade assembly (26) on the shaft (22) is adjustable by an adjustment nut (56) which threadably engages the shaft (22) below the blade assembly (26) and which during adjustment, bears against the underneath of the blade assembly (26) so that rotation of the nut (56) upwardly of the shaft (22) raises the blade assembly (26) and rotation of the nut (56) downwardly allows the blade assembly to lower.
A pruning machine for pruning vegetation growing on generally horizontal support wires, the machine including a vertical shaft mounted for rotation and at least one blade assembly mounted on the shaft, the blade assembly including a plurality of blades mounted to rotate with the shaft, the vertical shaft being threaded at least in the region where the blade assembly is mounted, the vertical position of the blade assembly on the shaft being adjusted between two pruning positions by a respective one of one or more adjustment nuts which threadably engages the threaded shaft below the blade assembly and which during adjustment, bears against the underneath of the blade assembly so that rotation of the nut upwardly of the shaft raises the blade assembly and rotation of the nut downwardly allows the blade assembly to lower.
A pruning machine for pruning vegetation growing on generally horizontal support wires, the machine including a pair of vertical shafts which are spaced apart laterally for positioning on either side of the vegetation to be pruned, each of the shafts being mounted for rotation and each of the shafts including at least two blade assemblies mounted on the shaft in vertically spaced relationship, each blade assembly including a plurality of blades mounted to rotate with the shaft, the vertical shafts being threaded at least in the region where the blade assemblies are mounted, and an adjustment nut being threadably mounted to the threaded region beneath each blade assembly, the vertical position of the blade assemblies on the shaft being adjusted by rotating the adjustment nut against the underneath of the blade assembly so that rotation of the nut upwardly of the shaft raises the blade assembly and rotation of the nut downwardly allows the blade assembly to lower.
Dependencies are inferred from the claim text.