Sectional flooring

Abstract

Sectional flooring includes a first flooring unit and a second flooring unit assembled together using connecting structures that are different along long sides and short sides. With respect to the long sides, the first flooring unit includes a first indentation, a catch extension extending away from the first indentation and in a short side direction of the first flooring unit, and a connecting protrusion extending from a distal end of the catch extension. The second flooring unit includes a protuberance that is inserted into the first indentation, a second indentation formed extending further into the second flooring unit starting from the protuberance and for receiving the catch extension of the first flooring unit, and a third indentation formed extending into the second flooring unit from a side surface of the second indentation and into which the connecting protrusion is positioned.

1 . Sectional flooring, comprising: 
 a first flooring unit and a second flooring unit assembled together using connecting structures that are different along long sides and short sides,    wherein with respect to the long sides, the first flooring unit includes a first indentation, a catch extension extending away from the first indentation and in a short side direction of the first flooring unit, and a connecting protrusion extending from a distal end of the catch extension; and    the second flooring unit includes a protuberance that is inserted into the first indentation, a second indentation formed extending further into the second flooring unit starting from the protuberance and for receiving the catch extension of the first flooring unit, and a third indentation formed extending into the second flooring unit from a side surface of the second indentation and into which the connecting protrusion is positioned.    
   
   
       2 . The sectional flooring of  claim 1 , wherein a depression is formed starting from an innermost end of a second opposing surface, which is formed extending a predetermined distance in a short side direction from an edge of one long side of the second flooring unit, the depression resulting in the formation of a first channel between the first and second flooring units.  
   
   
       3 . The sectional flooring of  claim 1 , wherein the first indentation occupies a larger area than the protuberance to thereby form a second channel between the first and second flooring units.  
   
   
       4 . The sectional flooring of  claim 1 , wherein an upper section of the catch extension is extended in a direction toward the first indentation to form a curved area.  
   
   
       5 . The sectional flooring of  claim 1 , wherein a lower section of the second indentation is extended from the protuberance to form a curved area.  
   
   
       6 . The sectional flooring of  claim 1 , wherein the connecting protrusion and the third indentation are substantially identical in shape and are in close contact following assembly of the first and second flooring units.  
   
   
       7 . The sectional flooring of  claim 1 , wherein a first sloped section is formed extending from a long side edge of the first flooring unit closest to the connecting protrusion and reaching the same, and a second sloped section is formed from the third indentation and extending to a long side edge of the second flooring unit closest to the third indentation to thereby form a third channel between the first and second flooring units.  
   
   
       8 . The sectional flooring of  claim 1 , wherein close contact is made between the first and second flooring units at a first contact point between the protuberance and the first indentation, a second contact point between the catch extension and the second indentation, and a contact surface between the connecting protrusion and the third indentation.  
   
   
       9 . The sectional flooring of  claim 1 , wherein a hooking protrusion is formed extending from an end of the protuberance in a direction toward the upper long side of the second flooring unit, and a concavity is formed in the first indentation corresponding to the formation of the hooking protrusion to receive the same.  
   
   
       10 . The sectional flooring of  claim 9 , wherein the hooking protrusion and the concavity are wedge-shaped.  
   
   
       11 . The sectional flooring of  claim 1 , wherein a cutaway section is formed in one of the first flooring unit and the second flooring unit.  
   
   
       12 . The sectional flooring unit of  claim 1 , wherein with respect to the short sides, the first flooring unit includes a protrusion having a catch member extending in one direction, and the second flooring unit includes a cavity section for receiving the protrusion of the first flooring unit.  
   
   
       13 . The sectional flooring unit of  claim 12 , wherein the first flooring unit includes a first facing surface that is extended from a long side of the first flooring unit a predetermined distance into the same, and the second flooring unit includes a second facing surface that is extended from a long side of the second flooring unit a predetermined distance into the same, the first and second facing surfaces being provided at a predetermined distance from each other when the first and second flooring units are assembled to thereby form a fourth channel between the first and second facing surfaces.  
   
   
       14 . The sectional flooring of  claim 12 , wherein a hollow is formed in the first flooring unit to thereby form a fifth channel between the first and second flooring units when the same are assembled, and the cavity section is formed covering a larger area than the protrusion such that a sixth channel is formed between these elements when the first and second flooring units are assembled.  
   
   
       15 . The sectional flooring of  claim 12 , wherein a projection is formed on the first flooring unit on a side of the protrusion opposite the side on which the catch member is formed, and a concave surface is formed in the second flooring unit at an area corresponding to the projection when the first and second flooring units are assembled.  
   
   
       16 . The sectional flooring of  claim 1 , wherein the first and second flooring units include a waterproof lubricant layer formed on a whole surface of at least one of the long sides and short sides.