Method and apparatus for handling logs to be debarked
AssigneeValmet Woodhandling Oy
InventorsArvo Jonkka, Kari Liljeroos, Tero Aronen
Life of this patent
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Abstract
Methods are disclosed for removing the bark from logs including transporting the logs in a longitudinal direction, cutting the surface of the logs as they move in the longitudinal direction using blades projecting upwardly with respect to a bottom surface on which the logs are supported and which is moving transversely under the logs, and simultaneously causing the logs to move so that the logs alternately contact the blades and are displaced from contact with the blades. Apparatus for removing the bark from logs is also disclosed.
Claims14
A method for removing the bark from logs comprising transporting said logs in a longitudinal direction, cutting the surface of said logs as they move in said longitudinal direction by means of blades projecting upwardly with respect to a bottom surface on which said logs are supported and which is moving in a transverse direction under said logs, and simultaneously causing said logs to move so that said logs alternately contact said blades and are displaced from contact with said blades.
Apparatus for removing the bark from logs comprising transporting means for transporting said logs in a longitudinal direction, a bottom surface for supporting said logs, and blade means projecting upwardly with respect to said bottom surface in a transverse direction for cutting the surface of said logs as they move in said longitudinal direction, said bottom surface including a bottom surface portion, said blade means disposed at a level below said bottom surface portion for at least some of the time that said apparatus is being operated.
Dependencies are inferred from the claim text.