Device for working of tree trunks
OwnerJohann Wolf, Dale Sanborninventors
Life of this patent
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Abstract
A device for producing squared timber from tree trunks includes a feed section, a machining center, and a delivery section; the feed section has at least two grippers which can be placed against the tree trunk to be machined and using which the tree trunk is supplied to the machining center; the machining center has several plan cutters and feed rollers in order to advance the tree trunk, while it is machined by cutting at the desired locations. The square beam is transported from the machining center onto the delivery section and then removed for further machining. The grippers may be made such that they hold the tree trunk regardless of its diameter at a height which at least roughly corresponds to the axis of the machining center.
Claims13
A device for producing squared timbers from tree trunks (4), comprising:
- a machining center (2);
- a feed section (1) located in front of the machining center (2) as viewed in the machining direction;
- a delivery section (3) located after the machining center (2) as viewed in the machining direction;
- and
- two grippers (10) located on carriages (11) on the feed section (1), the grippers being movable relative to the machining center (2) and arranged for pushing tree trunks (4) to the machining center (2),
- the two grippers (10) having fork tongs,
- each gripper (10) having two sides (13) with extension arms (15) joined to one another to swivel around a common axis (14) located underneath an axis (20) of the machining center (2), the extension arms (15) pointing downward from the carriages (11) and the axis (20) of the machining center (2), and
- the grippers (10) being arranged to be closed by swivelling their sides (13) concentrically to the axis (20) of the machining center (2),
- wherein the tree trunks (4) are held by the sides (13) of the grippers (10) with an axis which lies essentially in the axis (20) of the machining center (2).
Dependencies are inferred from the claim text.