Set of assembly units for prefabricated bag and prefabricated bag using the same

Abstract

A set of assembly units for a prefabricated bag is disclosed. The set of assembly units for a prefabricated bag, according to the present invention, comprises a plurality of main assembly units, wherein each main assembly unit has a polygonal sheet shape having a predetermined area and having an outer surface and an inner surface separated from each other, and is provided with, at each side portion, insertion holes punctured through both sides and connecting pieces extending outwardly, wherein each main assembly unit is connected to adjacent main assembly units so as to be fixed to each other in such a manner that the connecting pieces are inserted through into the insertion holes of the adjacent main assembly units, and wherein a plurality of main assembly units are continuously connected to each other in the vertical direction and the horizontal direction so as to form the bottom surface and side surfaces of the bag such that an accommodating space is formed.

What is claimed is: 
     
         1 . A set of assembly units for a prefabricated bag, being organically connected to each other to form a prefabricated bag ( 100 ) having a storage space ( 110 ) therein, the set of assembly units comprising:
 a plurality of main assembly units ( 200 ) formed of a polygonal sheet shape having a certain area and divided into an outer surface ( 211 ) and an inner surface ( 212 ) and having an insertion hole ( 214 ) opened in both surface directions or a connection piece ( 220 ) extending outwardly formed at side portions ( 213   a  to  213   d ) thereof, respectively, wherein:   the main assembly units ( 200 ) are connected to each other while the connection piece ( 220 ) is inserted and fixed in the insertion hole ( 214 ) of an adjacent main assembly unit ( 200 );   the plurality of main assembly units ( 200 ) are continuously connected in vertical and horizontal directions to form a bottom surface ( 120 ) and a side surface ( 130 ) of the bag and thus form the storage space ( 110 );   the main assembly unit ( 200 ) has a rectangular sheet shape having four side portions ( 213   a  to  213   d );   the insertion hole ( 214 ) is formed at adjacent two side portions ( 213   a  and  213   b ) of the four side portions ( 213   a  to  213   d );   the connection piece ( 220 ) is formed to extend outwardly from the other two side portions ( 213   c  and  213   d ) of the four side portions ( 213   a  to  213   d );   a first fastening portion ( 231 ) is formed on inner surfaces of the side portions ( 213   c  and  213   d ) from which the connection piece ( 220 ) extends;   a second fastening portion ( 232 ) coupled to the first fastening portion ( 231 ) is formed on an inner surface of the connection piece ( 220 ); and   the connection piece ( 220 ) is formed of a flexible material or has a structure that is folded inward and thus the second fastening portion ( 232 ) is coupled to and fixed to the first fastening portion ( 231 ) while the connection piece ( 220 ) is folded inward in a state of being inserted into the insertion hole ( 214 ) of an adjacent main assembly unit ( 200 ).   
     
     
         2 . The set of assembly units of  claim 1 , wherein one of the first fastening portion ( 231 ) and the second fastening portion ( 232 ) is formed of a female Velcro, and the other fastening portion is formed of a male Velcro. 
     
     
         3 . The set of assembly units of  claim 2 , wherein on the inner surface of the main assembly unit ( 200 ), a third fastening portion ( 233 ) is formed between an outer end of the insertion hole ( 214 ) and end portions of the side portions ( 213   a  and  213   b ) at which the insertion hole ( 214 ) is formed, and is formed of the same Velcro as the first fastening portion ( 231 ) to be coupled to the second fastening portion ( 232 ), and the first fastening portion ( 231 ) is disposed to have an area capable of being simultaneously coupled to the second fastening portion ( 232 ) and the third fastening portion ( 233 ) on an inner surface of the connection piece ( 220 ). 
     
     
         4 . The set of assembly units of  claim 1 , further comprising a sub-assembly unit ( 300 ) having a triangular sheet shape having a certain area and having an outer surface ( 311 ) and an inner surface ( 312 ),
 wherein a sub-insertion hole ( 314 ) opened in both surface directions or a sub-connection piece ( 320 ) extending outward is formed at three side portions ( 313 ) of the sub-assembly unit ( 300 ), and the connection piece ( 220 ) of the main assembly unit ( 200 ) is inserted into the sub-insertion hole ( 314 ), or the sub-connection piece ( 320 ) is inserted into the insertion hole ( 214 ) of the main assembly unit ( 200 ), thereby interconnecting with the main assembly unit ( 200 ).   
     
     
         5 . The set of assembly units of  claim 1 , further comprising a strap assembly unit ( 400 ) forming a shoulder strap or a handle of the bag while being formed in a strip shape extending to a certain length and both side portions thereof are inserted into and fixed to the insertion holes ( 214 ) of different assembly units ( 200 ). 
     
     
         6 . A prefabricated bag manufactured using a set of assembly units for a prefabricated bag, being organically connected to each other to form a prefabricated bag ( 100 ) having a storage space ( 110 ) therein, the set of assembly units comprising:
 a plurality of main assembly units ( 200 ) formed of a polygonal sheet shape having a certain area and divided into an outer surface ( 211 ) and an inner surface ( 212 ) and having an insertion hole ( 214 ) opened in both surface directions or a connection piece ( 220 ) extending outwardly formed at side portions ( 213   a  to  213   d ) thereof, respectively,   wherein:   the main assembly units ( 200 ) are connected to each other while the connection piece ( 220 ) is inserted and fixed in the insertion hole ( 214 ) of an adjacent main assembly unit ( 200 );   the plurality of main assembly units ( 200 ) are continuously connected in vertical and horizontal directions to form a bottom surface ( 120 ) and a side surface ( 130 ) of the bag and thus form the storage space ( 110 );   the main assembly unit ( 200 ) has a rectangular sheet shape having four side portions ( 213   a  to  213   d );   the insertion hole ( 214 ) is formed at adjacent two side portions ( 213   a  and  213   b ) of the four side portions ( 213   a  to  213   d );   the connection piece ( 220 ) is formed to extend outwardly from the other two side portions ( 213   c  and  213   d ) of the four side portions ( 213   a  to  213   d );   a first fastening portion ( 231 ) is formed on inner surfaces of the side portions ( 213   c  and  213   d ) from which the connection piece ( 220 ) extends;   a second fastening portion ( 232 ) coupled to the first fastening portion ( 231 ) is formed on an inner surface of the connection piece ( 220 ); and   the connection piece ( 220 ) is formed of a flexible material or has a structure that is folded inward and thus the second fastening portion ( 232 ) is coupled to and fixed to the first fastening portion ( 231 ) while the connection piece ( 220 ) is folded inward in a state of being inserted into the insertion hole ( 214 ) of an adjacent main assembly unit ( 200 ).