Back to results
US 12,752,454 B2Granted
Wood shaping method
AssigneeCreaholic S.A.
InventorsLaurent Torriani, Carole Chapelat
Life of this patent
Estimating the term…
Abstract
The punching flank 303 on the shaping press 30 makes a second angle γ with the grain of the wood fibers. In order to allow a wider variety of shapes to be pressed into the workpiece and facilitate the demolding of the object from the press after pressing, this angle may vary between 0° and 5°. Thus, the profile of the shaping press on its punching flank may be slightly tapered as illustrated in FIG. 6. This second angle γ additionally makes it possible to obtain a higher quality finish on the internal surface of the wood object.
Claims18
A method for shaping an object made of wood, comprising the steps of:
- obtaining a workpiece by cutting a piece of wood in a cross-grain direction transverse to fibers of the wood;
- positioning the workpiece using a die;
- pressing the workpiece using a shaping press brought to bear against a free face of the workpiece, while applying pressure in an along-grain direction parallel to the fibers of the wood;
- wherein the pressure during the pressing exceeds 1.5×106 N/m2,
- wherein the pressing is performed cold,
- wherein the pressing is performed dry,
- and wherein the shaping press comprises a punching flank bearing against the workpiece during the pressing, the punching flank making an angle not exceeding 5° with the fibers of the wood of the workpiece positioned in the die,
- a contact surface between the shaping press and the workpiece comprising a first flat surface perpendicular to the fibers of the wood and a second flat surface, the punching flank of the shaping press connecting the first flat surface with the second flat surface so that during the pressing step, the first flat surface is a first part of the shaping press to come into contact with the workpiece and then penetrate the workpiece under an effect of the pressure.
5 more elements
Dependencies are inferred from the claim text.