Casing structure of compressed wood

Abstract

A casing structure of compressed wood that holds a predetermined object between a plurality of compressed wood pieces, wherein each of the compressed wood pieces has a main surface portion and side surface portions formed integrally around entire peripheral edges of the main surface portion and non-parallel with the main surface portion, and wood fiber directions in the main surface portions of the compressed wood pieces are substantially symmetrical with respect to an opposing surface between the compressed wood pieces.

1 . A casing structure of compressed wood that holds a predetermined object between a plurality of compressed wood pieces, wherein 
 each of the compressed wood pieces has a main surface portion and side surface portions formed integrally around entire peripheral edges of the main surface portion and non-parallel with the main surface portion, and    wood fiber directions in the main surface portions of the compressed wood pieces are substantially symmetrical with respect to an opposing surface between the compressed wood pieces.    
   
   
       2 . A casing structure of compressed wood that holds a predetermined object between a pair of compressed wood pieces, wherein 
 each of the compressed wood pieces has a main surface portion formed in a substantially square shape and side surface portions formed integrally around four peripheral edges of the main surface portion and non-parallel with the main surface portion, and    wood fiber directions in the main surface portions of the pair of compressed wood pieces are substantially symmetrical with respect to an opposing surface between the pair of compressed wood pieces.    
   
   
       3 . The casing structure of compressed wood according to  claim 1 , wherein the wood fiber directions in the main surface portions are substantially parallel with longitudinal directions of the main surface portions.  
   
   
       4 . The casing structure of compressed wood according to  claim 1 , wherein grains of the main surface portions are substantially symmetrical with respect to the opposing surface between the compressed wood pieces.  
   
   
       5 . The casing structure of compressed wood according to  claim 1 , wherein 
 a part of a compressed wood piece is formed as a detachable unit detachably mounted on the compressed wood piece, and    the wood fiber direction of the detachable unit is substantially in coincidence with the wood fiber direction of the compressed wood piece on which the detachable unit is mounted.