Composite engineered floor board having an oriented strand board (OSB) stabilizing base

Abstract

An engineered floor board or wood panel for the fabrication thereof is comprised of a thin top wood layer fabricated from a quality wood material. The top wood layer is glued to a core layer wood product having a grain orientation disposed transverse to the longitudinal axis of the top wood layer. A base wood layer is fabricated from oriented strand board (OSB) which is glued to the bottom of the core layer. The base wood layer is fabricated from a single sheet having wood particles and fibers oriented in at least two layers with at least a top layer having its wood particles and fibers generally oriented along the longitudinal axis of the top wood layer and transverse to use core layer to substantially prevent displacement and deformation of the core layer caused by expansion and retraction thereof and thereby preventing deformations in the top wood layer.

Description

TECHNICAL FIELD[0001]The present invention relates to a composite engineered floor board having an oriented strand board (OSB) stabilizing base.BACKGROUND OF THE INVENTION[0002]Engineered wood floors are generally comprised of a thin quality top wood layer which is glued to a substrate layer generally known as a core. The substrate layer is fabricated from an inferior wood product and it has its grain generally oriented transverse to the longitudinal axis of the top wood layer to prevent cupping or crowning and longitudinal distortion in the top wood layer. However, because the core material is fabricated from unstable wood material it is also subject to expansion and retraction and distortion. Such displacement in the core material is generally transmitted to the top surface of the thin top wood layer and produces distortions therein which are visible to the eye, particularly when viewed under light, and this is known as telegraphy. Telegraphy is due to distortion of the core mater...

AI Technical Summary

Benefits of technology

The present invention provides an engineered floor board comprised of a thin top wood layer glued to a flexible core layer and a base wood layer glued to a bottom surface of the core layer. The top wood layer is made from a quality wood piece and is oriented in a way that prevents telegraphy (distortion) in the top surface. The core layer is made from oriented strand board (OSB) which resists to deformation and displacement. The wood panel has a flexible core layer and a base layer that prevents displacement and telegraphy on the top surface. This invention offers improved strength and stability for engineered floor boards.

Problems solved by technology

However, because the core material is fabricated from unstable wood material it is also subject to expansion and retraction and distortion.

For example, one slat may be have a knot therein and this causes distortion of the slats as well as displacement thereof making the spaces between the slats irregular.

However, such core material is expensive and still provides distortion as the plywood sheet has defects depending on the quality of its laminated wood sheets.

However, there is often a long time laps between the fabrication of the engineered floor boards and their use i.e. their securement to a prepared sub floor.

During that time period, the floor boards are shipped under different climatic conditions and also stored under different climatic conditions and the substrate is subjected to expansion and retraction often resulting in distortion of the floor boards and when finally ready to be installed a deformation is already present in the top wood layer.

Images