Solid puzzle block

Abstract

Provided is a solid puzzle block ( 1 ). The solid puzzle block has a connecting groove ( 13 and 33 ) open from the top to the bottom of a side surface ( 11 and 31 ) of its main body to allow cross-connecting of two blocks, and a connecting peg ( 14 ) and connecting hole ( 15 ) formed at either end of the connecting groove ( 13 ) on the side surface ( 11 and 31 ) to allow side-connecting of two blocks. In order to impart a firm cross-connection, a plurality of embossings ( 12 ) are formed on the left and right surfaces of the connecting groove ( 13 and 33 ) and the contact portions ( 42 ) of the upper and lower surfaces ( 40 and 41 ) contacting the connecting groove ( 13 and 33 ). At an end surface ( 16 and 36 ) between the left and right surfaces of the connecting groove ( 13 and 33 ) is fixed a connector ( 17 ), to which an operating unit ( 21 ) located inside the main body is connected electrically. Although the firmly connecting block is not of an assorted variety, it can arouse enjoyment and curiosity in users of all ages.

1 . A polyhedral solid puzzle block ( 1 ) comprising: 
 a main body ( 10 ) upwardly open;    a cap ( 30 ) downwardly open and coupled with the main body ( 10 );    a connecting groove ( 13  and  33 ) formed at a center of a side surface ( 11  and  31 ) of the main body ( 10 ) and the cap ( 30 ), for allowing another solid puzzle block ( 1 ) to be perpendicularly connected thereto; and    a connecting peg ( 14 ) and a connecting hole ( 15 ) respectively formed on either end of a side surface ( 11 ), for connecting respective side surfaces ( 11  and  31 ) of two solid puzzle blocks ( 1 ).    
   
   
       2 . The solid puzzle block of  claim 1 , further comprising: 
 a plurality of supports ( 20 ) spaced a predetermined distance from an end surface ( 16  and  36 ) of the connecting groove ( 13  and  33 ) inside the main body ( 10 ), for enabling the main body ( 10 ) to be coupled with the cap ( 30 ), and having a tab hole ( 19 ) defined on a top surface thereof;    a screw hole ( 39 ) formed on a portion of the cap ( 30 ) opposite the support ( 20 ), and a screw ( 22 ) for fastening to the support ( 20 ) through the screw hole ( 39 );    an operating unit ( 21 ) installed inside the solid puzzle block ( 1 ) for emitting light or sound; and    a connector ( 17 ) connected by a wire to the operating unit ( 21 ) for electrically connecting to another solid puzzle block ( 1 ).    
   
   
       3 . The solid puzzle block of  claim 1 , wherein the end surface ( 16  and  36 ) between left and right surfaces of the connecting groove ( 13  and  33 ) has a receiving groove ( 18  and  38 ) formed thereon for securing the connector ( 17 ) to the solid puzzle block ( 1 ), an insulator ( 17 - 1 ) is fitted around the connector ( 17 ) and disposed between the receiving groove ( 18 ) and the support ( 20 ) of the main body ( 10 ) for securing the connector ( 17 ) to the receiving groove ( 18  and  38 ).  
   
   
       4 . The solid puzzle block of  claim 1 , further comprising an embossing ( 12 ) formed on the left and right surfaces of the connecting groove ( 13  and  33 ) and the upper and lower surfaces ( 40  and  41 ) contacting the connecting groove ( 13  and  33 ) for increasing coupling strength.  
   
   
       5 . The solid puzzle block of  claim 1 , wherein the side surface ( 11  and  31 ) of the solid puzzle block ( 1 ) includes a T-connection groove ( 51 ) formed at a center for side-connecting and cross-connecting two solid puzzle blocks ( 1 ), and including an I-connection block ( 52 ) for inserting into and connecting two adjoining T-connection grooves ( 51 ).  
   
   
       6 . The solid puzzle block of  claim 1 , wherein the connecting groove ( 61 ) on the side surface ( 11  and  31 ) of the solid puzzle block ( 1 ) includes a pin hole ( 62 ) formed in a cross section ( 61 - 1 ) at an end thereof, and has a fixing pin ( 63 ) inserted in the pin hole ( 62 ) for connecting two solid puzzle blocks ( 1 ).  
   
   
       7 . The solid puzzle block of  claim 1 , wherein the connecting groove ( 71 ) formed on the side surface ( 11  and  31 ) of the solid puzzle block ( 1 ) includes an insertion guide ( 72 ) extending horizontally along the lengths of the left and right surfaces thereof, and the upper and lower surfaces ( 40  and  41 ) have an insertion groove ( 75 ) formed at a right angle thereon to run parallel to the insertion guide ( 72 ).  
   
   
       8 . The solid puzzle block of  claim 1 , wherein one of its several side surfaces ( 11  and  31 ) has a connecting groove ( 81 ) formed thereon opening from the top to the bottom, and the remaining side surfaces ( 11  and  31 ) have a slide groove ( 82 ) respectively formed on the upper and lower surfaces ( 40  and  41 ).