Box body

Abstract

A container is provided with, as shown in FIG. 1 , an opening 6 , a lid-constituting part 11 that makes a mountain fold on a container-constituting part 1 and has a slit portion 11 a , a lid-constituting part 12 that makes a valley fold on the lid-constituting part 11 and has the same size as that thereof, a lid-closing part 13 that makes a valley fold on the lid-constituting part 12 and has a predetermined shape and a size, an intermediate lid-pushing part 14 that makes a mountain fold on a container-constituting part 2 and has a length extending beyond the opening 6 , and a lid-closing part 15 that makes a mountain fold on the intermediate lid-pushing part 14 and has a predetermined extended length. The lid-closing part 15 and the intermediate lid-pushing part 14 are successively inserted into the slit portion 11 a , the intermediate lid-pushing part 14 covers the lid-constituting part 11 and the lid-constituting part 12 covers the intermediate lid-pushing part 14 . By taking such a configuration, it is possible to close the opening doubly as well as it is possible to open the opening easily.

1 . A container in which one of container-constituting surfaces forms an opening with a predetermined size, characterized in that if two constituting surfaces standing facing each other across the opening are supposed as first and second constituting surfaces, it is provided with:
 a first folding surface that makes a mountain fold on the first constituting surface, the first folding surface having a length extending beyond the opening;   a second folding surface that makes a valley fold on the first folding surface;   a third folding surface that makes a valley fold on the second folding surface;   a fourth folding surface that makes a mountain fold on the second constituting surface, the fourth folding surface having a predetermined length; and   at a predetermined position, a slit portion for allowing the fourth folding surface to be inserted,   wherein when the opening is closed,   the fourth folding surface is inserted into the slit portion for allowing the folding surface to be inserted,   the fourth folding surface covers the first folding surface and the second folding surface covers the fourth folding surface so that the third folding surface is engaged with the first constituting surface.   
   
   
       2 . The container according to  claim 1  characterized in that the slit portion for allowing the fourth folding surface to be inserted is provided on a boundary line between the first folding surface and the second folding surface, on the first folding surface or on the second folding surface. 
   
   
       3 . The container according to  claim 1  characterized in that if the slit portion for allowing the folding surface to be inserted is provided at a predetermined position on the first folding surface, it is provided with a fifth folding surface that makes a mountain fold on the fourth folding surface, the fifth folding surface having a predetermined extended length,
 Wherein when the opening is closed,   the fifth folding surface and the fourth folding surface are inserted into the slit portion for allowing the folding surface to be inserted,   the fourth folding surface covers the first folding surface and the second folding surface covers the fourth folding surface so that the fifth folding surface wraps the first constituting surface, and the third folding surface is engaged with the first constituting surface with the third folding surface wrapping the fifth folding surface.   
   
   
       4 . The container according to  claim 1  characterized in that the first constituting surface has a pair of slit portions for engaging folding pieces at predetermined positions;
 the third folding surface has first and second folding pieces that make mountain folds; and   when the third folding surface is engaged with the first constituting surface, the first folding piece is engaged with one slit portion for engaging a folding piece in the first constituting surface and the second folding piece is engaged with the other slit portion for engaging the folding piece in the first constituting surface.   
   
   
       5 . The container according to  claim 3  characterized in that when the opening is opened,
 the third folding surface is disengaged with the first constituting surface and the third folding surface is pulled from the first constituting surface and the fourth folding surface and the fifth folding surface are pulled out of the slit portions of the first folding surface.   
   
   
       6 . The container according to  claim 1  characterized in that it is provided with a sixth folding surface that makes a mountain fold on a third constituting surface that is adjacent to the first constituting surface and a seventh folding surface that makes a mountain fold on a fourth constituting surface that is adjacent to the second constituting surface.