Block plank and method for the production thereof

Abstract

A block plank for building wooden walls, formed of a plurality of block planks ( 6, 7 ) located horizontally one above the other, of houses and other buildings is proposed which on its lower bearing face ( 8 ) has a wedge-shaped longitudinal slit ( 3 ) that tapers toward the heart ( 2 ) of the block plank ( 6, 7 ). The method of the invention for producing such block planks ( 6, 7 ) with a low wood moisture provides that the logs ( 1 ) used, before the drying operation, are provided with at least one longitudinal slit ( 3 ) extending as far as the heart ( 2 ) of the respective log ( 1 ); that the logs ( 1 ) are then dried in a drying chamber to a moisture content of less than 15%, preferably to a moisture content of 11%; and that the logs ( 1 ) are then sawn to the desired size of block plank.

1 . A block plank for building wooden walls, formed of a plurality of block planks ( 6 ,  7 ) located horizontally one above the other, of houses and other buildings, characterized in that the block plank ( 6 ,  7 ), on its lower bearing face ( 8 ), has a wedge-shaped longitudinal slit ( 3 ) that tapers toward the heart ( 2 ) of the block plank ( 6 ,  7 ).  
     
     
         2 . The block plank of  claim 1 , characterized in that an elastically compressible insulating material ( 13 ) is inserted into the longitudinal slit ( 3 ) and protrudes slightly from the lower bearing face ( 8 ) of the block plank ( 6 ).  
     
     
         3 . The block plank of one of claims  1  or  2 , characterized in that ribs ( 11 ) extending parallel to and spaced apart from one another are embodied on the top side ( 9 ) of the block plank ( 6 ,  7 ), facing away from the lower bearing face ( 8 ), and these ribs correspond with longitudinal grooves ( 10 ) embodied on the lower bearing face ( 8 ), so that a tongue-and-groove joint ( 12 ) is created between block planks ( 6 ,  7 ) located one above the other.  
     
     
         4 . The block plank of one of the foregoing claims, characterized in that longitudinal notches ( 4 ,  5 ) are embodied on the top side ( 9 ) facing away from the bearing face ( 8 ).  
     
     
         5 . The block plank of  claim 4 , characterized in that longitudinal notches ( 4 ,  5 ) are located in the ribs ( 11 ) embodied on the top side ( 9 ).  
     
     
         6 . The block plank of one of the foregoing claims, characterized in that the free face ends ( 20 ) of a plurality of block planks located one above the other in a block plank wall ( 15 ) are notched preferably in wedge-shaped fashion and are covered by means of a shape-adapted covering ( 14 ).  
     
     
         7 . The block plank of  claim 1 , characterized in that longitudinal grooves ( 21 ) extending parallel to and spaced apart from one another are embodied on the top side ( 9 ), facing away from the lower bearing face ( 8 ), of the block plank ( 6 ,  7 ), and they correspond with longitudinal grooves ( 10 ) embodied on the lower bearing face ( 8 ); and that in each two longitudinal grooves located directly one above the other, a highly predried adjusting tongue ( 22 ) is located, so that press fits are created at the adjusting tongues ( 22 ) between block planks ( 6 ,  7 ) located one above the other.  
     
     
         8 . The block plank of  claim 7 , characterized in that the adjusting tongues ( 22 ), before insertion into the longitudinal grooves, have a degree of dryness of less than 10% moisture, and preferably 8% moisture.  
     
     
         9 . The block plank of one of the foregoing claims, for the corner halving of outside walls of a block plank house, characterized in that the block planks, from their outward-pointing face end to beyond the region of the corner halving, each have one vertical, spreadable longitudinal slit.  
     
     
         10 . The block plank of  claim 9 , characterized in that into each of the block planks in the region of the corner halving, a respective tightening tongue vertically penetrating the block plank is inserted, transversely to the longitudinal direction of the block plank.  
     
     
         11 . The block plank of one of claims  9  or  10 , characterized in that the block plank, from its outward-pointing face end, has, as a longitudinal slit, a spline aligned with the tightening tongue, into which spline a wedge that can be driven farther in is inserted on the face end of the plank.  
     
     
         12 . A method for producing block planks ( 6 ,  7 ) with low wood moisture for building wooden walls, of one of the foregoing claims, characterized in that the logs ( 1 ) used are provided, before the drying operation, with at least one longitudinal slit ( 3 ) extending as far as the heart ( 2 ) of the respective log ( 1 ); that the logs ( 1 ) are then dried in a drying chamber to a moisture content of less than 15%, preferably to a moisture content of 11%; and that the logs ( 1 ) are then sawn to the desired size of block plank.  
     
     
         13 . The method of  claim 12 , characterized in that before the drying operation, the logs ( 1 ) are flattened over their entire length on the side where the longitudinal slit ( 3 ) is made.  
     
     
         14 . The method of  claim 13 , characterized in that further symmetrically disposed longitudinal notches ( 4 ,  5 ) are made, offset by more than 90° relative to the longitudinal slit ( 3 ) extending to the heart ( 2 ).  
     
     
         15 . The method of one of claims  12 - 14 , characterized in that after the drying operation, the longitudinal slit ( 3 ) is milled out to a predetermined final size.