Collapsible storage box

Abstract

The collapsible storage box contains two rigid lateral plates, two flexible longitudinal plates, a flexible first base plate connecting the longitudinal and lateral plates' bottom rims, and a rigid second base plate stitched or adhered to a top side of the first base plate along a longitudinal middle section of the second base plate. A rigid support plate is connected to the top rim of each longitudinal plate. To put the storage box to use, the lateral and longitudinal plates are raised and the two support plates are flipped downward so that their bottom rims are pressed against the second base plate. When the storage box is not in use, the support plates are flipped outward and, by the flexibility of the two longitudinal plates, the lateral plates are folded inward. The storage box then turns into a flat shape for easy storage and transportation.

1 . A collapsible storage box, comprising:
 two rigid lateral plates where one of said lateral plates has an opening and a side cover plate connecting said lateral plate along the top edge of said opening;   two flexible longitudinal plates;   a flexible first base plate connecting the bottom rims of said longitudinal and lateral plates;   a flexible top cover plate connecting the top rims of said longitudinal and lateral plates;   a rigid second base plate on top of said first base plate partially fixed to said first base plate along a longitudinal middle section of said second base plate, leaving the circumference of said second base plate freely detachable from said first base plate; and   two rigid support plates connected to the top rims of said longitudinal plates, respectively, where two flexible extensions are extended from the top rims of said support plates, respectively;   wherein, to use said collapsible storage box, said lateral and longitudinal plates are raised and said support plates are flipped downward so that the bottom rims of said lateral plates and said support plates are pressed against said second base plate, and said extensions are inserted beneath said second base plate; and, as such, a storage room for various objects is formed; and,   when said collapsible storage box is not in use, said support plates are flipped outward and, by the flexibility of said two longitudinal plates, said lateral plates are folded inward and said support plates are flipped inward and stacked so that said collapsible storage box turns into a flat shape for easy storage and transportation.   
     
     
         2 . The collapsible storage box according to  claim 1 , wherein corresponding fastening elements are provided on said lateral plate along the bottom edge of said opening and said side cover plate, respectively, so as to fix said side cover plate when it seals said opening. 
     
     
         3 . A collapsible storage box, comprising:
 two rigid lateral plates where one of said lateral plates has an opening and a side cover plate connecting said lateral plate along the top edge of said opening;   two flexible longitudinal plates;   a rigid first base plate connecting the bottom rims of said longitudinal and lateral plates;   a rigid top cover plate connecting the top rims of said longitudinal and lateral plates;   a second base plate having a lateral edge connected to the top rim of a lateral plate opposite to said opening, said second base plate bendable along a lateral line; and   two rigid support plates connected to the top rims of said longitudinal plates, respectively;   wherein, to use said collapsible storage box, said lateral and longitudinal plates are raised and said support plates are flipped downward and said second base plate is pushed inward into an L shape supporting a lateral plate and said first base plate, thereby forming a stable storage room where objects could be placed inside through said opening and sealed by said side cover plate;   when said storage box is not in use, said side cover plate is opened and said support plates are flipped upward and said second base plate is pulled outward; and, as said longitudinal plates are flexible and folded inward, said support plates are then closed and stacked, turning said storage box into a flat shape.