Panel and Use of Such a Panel As A Scaffolding Board or a Building Panel

Abstract

The present invention relates to a panel comprising two parallel skin plates made of wood or a wood material, between which ribs extend for stiffening the panel, wherein the ribs are at least substantially made of wood or a wood material. The present invention further relates to the use of such a panel as a scaffolding board or a construction element and to scaffolding provided with such panels.

What is claimed is: 
     
         1 . A panel comprising two parallel skin plates having perimeters made of a wood material substantially made of MDF, between which ribs extend in a width direction at least substantially a width between the skin plates for stiffening the panel without extending into the skin plates, characterized in that the ribs are at least substantially made of a wood material substantially made of MDF; wherein the ribs are planar strip-shaped slats and extend orthogonally crosswise from one of the two skin plates to but not into the other skin plate, said panel having a density of less than 300 kg/m3 and a modulus of elasticity not exceeding 5 GPa. 
     
     
         2 . The panel according to  claim 1 , characterized in that at least some of the ribs extend parallel to each other in their a longitudinal direction, as defined in a direction perpendicular to the width. 
     
     
         3 . The panel according to  claim 2 , characterized in that a spacing between two adjacent ribs extending parallel to each other ranges between 1 and 10 cm, and the panel has up to 70% less wood than the solid wood plank. 
     
     
         4 . The panel according to  claim 2  characterized in that the ribs are arranged in at least one of a diamond-shaped and a rectangular pattern in an interlocking manner with the ribs extending continuously in at least the longitudinal direction. 
     
     
         5 . The panel according to  claim 4 , characterized in that the ribs intersect and are each provided with a respective notch located on each rib where the ribs intersect with the respective notches engaging one another internal to perimeters of the skin plates. 
     
     
         6 . The panel according to  claim 4 , characterized in that the ribs have a thickness, defined in a direction perpendicular to the width, of 0.5 to 2 mm. 
     
     
         7 . The panel according to  claim 6 , characterized in that the ribs have a width of 20 to 70 mm. 
     
     
         8 . The panel according to  claim 7 , characterized in that the ribs are attached to the skin plates. 
     
     
         9 . The panel according to  claim 8 , characterized in that the ribs are adhered to the skin plates. 
     
     
         10 . The panel according to  claim 1 , characterized in that fibre mats are provided between the ribs and the skin plates in contact with the skin plates and adjacent to the ribs for stiffening purposes and the ribs connect directly to the fibre mats. 
     
     
         11 . The panel according to  claim 10 , characterized in that said fibre mats are glass fibre mats. 
     
     
         12 . The panel according to  claim 6 , characterized in that the skin plates are connected at and around their perimeters to a framework. 
     
     
         13 . The panel according to  claim 12 , characterized in that the framework is made of wood. 
     
     
         14 . The panel according to  claim 12 , characterized in that the ribs are spaced from the framework. 
     
     
         15 . The panel according to  claim 1 , characterized in that at least a part of the panels is water-repellent and the ribs connect to the panel with a water repellent glue. 
     
     
         16 . The panel according to  claim 14 , characterized in that the panel has a panel length, defined in a direction perpendicular to the width, of at least 4 m and a panel width, defined in a direction perpendicular to the width and the panel length, of at least 25 cm.