A - Human Necessities – 01 – G
Patent
A - Human Necessities
01
G
A01G 23/087 (2006.01) A01G 23/095 (2006.01)
Patent
CA 2123594
ABSTRACT The invention relates to a self-propelling branch remover with the aid of which relatively large branches on trees, but even whole trees, can be gripped and capped. For this purpose, either so-called felling saws have previously been used, which were attached to the front end of a hydraulic crane and gripped the trunk with claws and sawed it off using a pivotable capping saw. The other solution was that of a worker who was lifted in a lifting basket up to the relevant place and carried out the work there manually using a saw. In both cases, the sawn-off parts dropped down in an uncontrolled manner since even the felling saws did indeed hold the piece tight, but could not hold it in the original position since they could not be used to transmit a torque to the crane arm. The attachment was effected by means of two universal joints. In the present case, this is prevented in that a connection between the felling saw unit and the machine frame is selected, which can absorb both bending forces and torques. For this purpose, the felling saw unit is attached so as to be rotatable and pivotable in a controlled manner relative to a torsion-resistant, jointless telescopic crane arm such that the entire work can be carried out by remote control from the driver's cab of the self-propelling branch remover. This avoids complex cordoning-off and safeguarding work.
Doll Fahrzeugbau Gmbh
Oyen Wiggs Green & Mutala Llp
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