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US 5,493,830 AGranted
Timber element and procedure for manufacturing a timber element
AssigneeHonkarakenne Oy
InventorReino Saarelainen
Life of this patent
Estimating the term…
Abstract
The invention concerns a timber element and a procedure for manufacturing such a timber element. The timber element (14b) is composed of at least two heavy wooden blanks (2) fitted one upon the other and glued to each other by their substantially horizontal faces. As taught by the invention, each wooden blank (2) is provided on at least on horizontal face with a guiding recess (6; 6a, 6b) longitudinal to the wooden blank and vertical, for guiding the crackling to occur vertically.
Claims6
A timber element, comprising:
- at least two heavy wooden blanks, each having a substantially horizontal face, said wooden blanks being fitted one upon the other and said substantially horizontal faces being glued together;
- a guiding recess being embossed on at least one of said horizontal faces of the corresponding wooden blanks and disposed between said glued wooden blanks;
- and
- the guiding recess being disposed in a longitudinal direction of the corresponding wooden blank, and a depth of the guiding recess being substantially vertical, for guiding a splitting to occur in a vertical direction, to the corresponding wooden blanks, the guiding recess having a plurality of short recesses disposed in a line with a given spacing.
1 more element
A method for manufacturing a timber element, comprising the steps of:
- cutting at least two heavy wooden blanks from logs, each of the heavy wooden blanks providing a horizontal face;
- embossing a guiding recess in at least one of the horizontal faces in a longitudinal direction of the corresponding wooden blank, a depth of the guiding recess being in a substantially vertical direction of the corresponding wooden blank, the guiding recess guiding a splitting to occur vertically, which is vertical to the horizontal faces, the guiding recess including a serial of short recesses spaced at a given distance;
- planing on the horizontal faces to be glued;
- gluing the horizontal faces of at least two wooden blanks, one upon the other, to form a timber element blank;
- drying the wooden blanks;
- and
- shaping the glued wooden blanks to an ultimate shape by machine, so as to become a desired timber element.
4 more elements
Dependencies are inferred from the claim text.