Packaging box

#1. Field of the Invention

#The present invention relates to a packaging box, from which stored articles can be easily taken out when a lid plate is opened, and which can endure a compressive stress when a multiple number of the boxes are piled up. The packaging box of the present invention is preferably used for, in particular, storing two or more inner boxes containing recording materials.

#2. Description of the Background

#FIG. 1 is a perspective view of an embodiment of the packaging box of the present invention in a state that the lid plate is opened.

#FIG. 2 is a development of an embodiment of the packaging box of the present invention.

#FIG. 3 is a perspective view of an embodiment of a mechanism formed in a side plate and a lid plate connected to the side plate of the packaging box of the present invention.

#Hereafter, the packaging box of the present invention will be explained in detail. In the present specification, the ranges indicated with “to” mean ranges including numerical values before and after “to” as the lower limit values and the upper limit values, respectively. In the present specification, the term “parallel” means that an intersection angle of two straight lines is not more than 15 degrees, preferably not more than 10 degrees. Further, the term “cut line” used in the present specification is used as a concept including both penetrating slits continuously formed in a line and penetrating slits intermittently formed in a line (for example, perforations).

#The packaging box of the present invention has at least one lid plate and at least one side plate connected to the upper end portion of the side plate. So long as the packaging box of the present invention is a box having such a side plate and a lid plate and has a packaging function, structures of bottom plate, side plate, lid plate and so forth are not particularly limited.

#A typical example of the packaging box of the present invention has a rectangular or rectangular parallelepiped storage space constituted by one bottom plate and four side plates, and has a structure enabling storage of stored articles in a lot (for example, see FIG. 1). The shape of the storage space can be suitably designed depending on the shape of articles to be stored such as inner boxes. For example, the storage space of the packaging box of the present invention is designed so that two or more inner boxes can be stored without gaps. The number of inner boxes stored in the packaging box of the present invention is not particularly limited, and it is usually 2 to 20, preferably 4 to 10.