Patent ID: 8800795

Claim:
An icebox comprising: an icebox body ( 100 ) having a bottom ( 101 ) and side walls ( 103 ), which are filled with insulating material ( 10 ), and a storing part ( 107 ) opened at one side for storing foods within the storing part; a cover ( 300 ) for selectively opening and closing the opened side of the icebox body ( 100 ), the cover ( 300 ) having a receiving part ( 310 ); a capacity varying part ( 400 ) interposed between the icebox body ( 100 ) and the cover ( 300 ) and slidably joined to the storing part ( 107 ) so as to vary the capacity of the storing part ( 107 ), the capacity varying part ( 400 ) having an inside communicating with the storing part ( 107 ) of the icebox body ( 100 ) and including: a seating portion ( 410 ) seated on an upper face of the side walls ( 103 ) of the icebox body ( 100 ); and lifting frames ( 420 ) bent and extending from the seating portion ( 410 ) toward the storing part ( 107 ) and having side wall receiving portions ( 423 ) for receiving the side walls ( 103 ) when they are slidably joined to the icebox body ( 100 ); and at least one fastener ( 430 ) disposed on an outer circumferential surface of the lifting frames ( 420 ) of the capacity varying part ( 400 ), the at least one fastener protruding outwardly and having a plurality of fastening slots ( 433 ), wherein separation portions ( 109 ) are formed along the upper faces of the side walls ( 103 ) of the icebox body ( 100 ), and have a predetermined depth toward the bottom ( 101 ) so that the lifting frames ( 420 ) of the capacity varying part ( 400 ) can be slidably joined to the side walls, wherein a guide groove ( 120 ) is formed on the side walls ( 103 ) at a position corresponding to each at least one fastener ( 430 ), and communicates with the separation portions ( 109 ) so that the at least one fastener ( 430 ) is slidably inserted when the lifting frames ( 420 ) is joined, and wherein a position determining pin ( 130 ) is slidably arranged in the guide groove ( 120 ) and fit into the fastening slots ( 433 ) of the fastener ( 430 ), the position determining pin sliding along the guide groove ( 120 ) to maintain a position of the lifting frames ( 420 ).