Device for producing square beams from tree trunks
OwnerJohann Wolf, Dale Sanborninventors
Life of this patent
Estimating the term…
Abstract
To produce square beams from tree trunks (13), a device is proposed in which a tree trunk (13) is first positioned by a centering device (4) such that the lengthwise axis (14) of the tree trunk (13) assumes essentially always the same stipulated position. The tree trunk (13) is then grasped by holders (11, 12) of a carriage (8) concentrically to the lengthwise axis (14), whereupon the centering device (4) is opened. Then the tree trunk (13) is guided through a band saw (5) and trimmed on the opposite sides, whereupon it is turned by 90° and the two other sides of the tree trunk (13) are trimmed.
Claims12
Device for producing square beams from tree trunks, which comprises:
- two tools which trim the trunks on two opposite sides;
- a holding device structured and arranged to grasp a tree trunk having a lengthwise axis on an end face while said trunk is being worked;
- said holding device and said tools being movable relative to one another during working;
- means for positioning the tree trunk;
- said means being opened during working before the trunk is grasped by the holding device;
- and
- said means for positioning comprising a centering device which positions the tree trunk automatically in essentially always the same stipulated position of the lengthwise axis of the tree trunk parallel to the direction of movement.
Dependencies are inferred from the claim text.