Veneer cutting machine for tree trunks with improved antibending device
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United States of America Patent
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-
May 21, 1991
Grant Date -
N/A
app pub date -
May 2, 1990
filing date -
May 5, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary veneer-cutting machine for tree trunks including a blade holder unit (15, 16, 17, 18) that laterally approaches the axis of a trunk (12) to be cut and top rollers (25) and side rollers (31) counteracting the bending of the trunk (12) caused by the shearing stresses of the blade. The side rollers (31) are positioned diametrically opposite the blade (17) and are motor driven. A piston (39) supplies thrust action for the rollers (31) against the trunk so as to insure adherence thereto even with low bending stresses of the trunk.
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