Method and device for cutting off tree trunks
AssigneeExplosiv Utveckling AB
InventorsBerthold Johansson, Ola Fristrom
Life of this patent
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Abstract
The invention relates to a method and a device for cutting off the trunk of a tree by detonation of an explosive charge in contact with the trunk. The invention solves the problem of providing a safe and convenient way of cutting off the trunk of a tree which has fallen to an inclined position where it rests against another tree or against an electric overhead line. To the trunk there is, at the desired level above ground, attached a holder which carries an explosive charge and can from the ground be mounted on the trunk, whereupon the charge is detonated and the trunk section above the cut-off level severed from the section below. In this way the top section is either directly released from its support or can conveniently be so released.
Claims5
A method for cutting off the trunk of and felling to gorund a tree which has fallen to an inclined position resting against an electric overhead line or against another tree, comprising the steps of:
- mounting, using an implement handled from ground, an explosive charge below a part of the trunk resting against said line or other tree, and
- subsequently detonating said charge.
A device for cutting off the trunk of and felling to ground a tree which has fallen to an inclined position resting against an electric overhead line or against another tree, comprising:
- a holder supporting an explosive charge,
- elongate rod means, operable from the ground, for mounting said holder on the trunk below a part thereof resting against said line or other tree, and
- means for initiating a detonation of said explosive charge from the ground.
Dependencies are inferred from the claim text.