Foldable box

Abstract

A foldable box includes a bottom board, two first side boards connecting one pair of opposing side edges of the bottom board, two U-shaped members connecting the other pair of opposing side edges of the bottom board, and two supporting boards respectively connecting the first side boards. The bottom board, the two first side boards, the two U-shaped members and the two supporting boards cooperatively form a rectangular box with an opened end. The foldable box of the present invention is foldable to be in a shape of flat board during storage and transportation for saving the occupied space thereof thereby facilitating to reduce cost of storage and transportation. Furthermore, it does not require to paste through gluewater or adhesive glue thereby facilitating to use and use repeatedly.

1 . A foldable box comprising:
 a bottom board;   two first side boards connecting one pair of opposing side edges of the bottom board;   two U-shaped members connecting the other pair of opposing side edges of the bottom board; and   two supporting boards respectively connecting the first side boards, the bottom board, the two first side boards, the two U-shaped members and the two supporting boards cooperatively forming a rectangular box with an opened end.   
   
   
       2 . The foldable box of  claim 1 , further comprising a cover extending from one of the first side board and a fastening board extending from the free end of the cover. 
   
   
       3 . The foldable box of  claim 1 , further comprising a cover which directly covers the opened end of the rectangular box. 
   
   
       4 . The foldable box of  claim 1 , wherein the bottom board is rectangular, the first side boards are perpendicularly connected to the pair of opposing side edges of the bottom board, and a first folding line is formed at the junction of each first side board and the bottom board. 
   
   
       5 . The foldable box of  claim 1 , wherein each U-shaped member includes a second side board connecting the bottom board and two connecting boards connecting opposing side edges of the second side board, the second side boards are perpendicularly connected to the other pair of opposing side edges of the bottom board, and a second folding line is formed at the junction of each side board and the bottom board. 
   
   
       6 . The foldable box of  claim 5 , wherein the width of the second side board is substantially equal to the length of the side edge of bottom board, the height of the second side board is substantially equal to that of the first side board, and a third folding line is formed at the junction of the connecting board and the second side board. 
   
   
       7 . The foldable box of  claim 1 , wherein each supporting board includes a first abutting member and a second abutting member, the first abutting member is foldably connected to an edge of the first side board apart from the bottom board, and the second abutting member extends from the free end of the first member. 
   
   
       8 . The foldable box of  claim 7 , wherein a fourth folding line is formed at the junction of the first abutting member and the first side board, a fifth folding line is formed at the junction of the first and second abutting members, the height of the first abutting member is substantially equal to that of the first side board, the first abutting member is foldable along the fourth folding line to abut against the inner side of the corresponding connecting board, the width of the second abutting member is substantially equal to that of the bottom board, the second abutting member is foldable along the fifth folding line to abut against the inner side of the bottom board, and the supporting board is slightly interferentially engaged with the bottom board thereby assembling the supporting board on the bottom board. 
   
   
       9 . The foldable box of  claim 8 , wherein the supporting board is interferentially engaged with the inner side of the second side board. 
   
   
       10 . The foldable box of  claim 2 , wherein the cover is foldably connected to one of the first side boards, a sixth folding line is formed at the junction of the first side board and the cover, the cover is foldable along the sixth folding line to cover the opened end of the rectangular box, the fastening board is foldably connected to an edge of the cover corresponding to the other first side board, a seventh folding line is formed at the junction of the fastening board and the cover, the fastening board is foldable along the seventh folding line to abut against the first side board, a pair of magnets are respectively disposed at the fastening board and the first side board thereby fastening the fastening board to the first side board.