Parquet block with woodwork joints

Abstract

A parquet block with a woodwork joint has two parallel abutting sides, a longitudinal notch, a longitudinal tongue, two transverse grooves and two transverse tongues. The longitudinal notch, the longitudinal tongue, the transverse grooves and the transverse tongues on adjacent parquet blocks interlock to hold the parquet blocks securely in the longitudinal and transverse directions.

1 . A parquet block with a woodwork joints having four sides; 
 a longitudinal notch having a short upper side and a long lower side with a distal edge and defined at one of the sides near the upper side edge of the parquet block;    a longitudinal tongue having a short upper side and a long lower side with a proximal edge and defined on a side opposite to the longitudinal notch of the parquet block to be inserted into the longitudinal notch in an adjacent parquet block;    two transverse tongues having a width and defined respectively on the sides different from the longitudinal notch and the longitudinal tongue; and    two transverse grooves having a width equal to the width of the transverse tongues and defined respectively beside the transverse tongues so that a transverse tongue on an adjacent parquet block can be mounted inside the adjacent transverse groove.    
   
   
       2 . The parquet block with the woodwork joint as claimed in  claim 1 , wherein 
 the longitudinal notch further comprises an upward protrusion formed on the distal edge of the longitudinal notch, and    the longitudinal tongue further comprises a longitudinal detent defined on the proximal edge of the long lower side of the longitudinal tongue.