Patent ID: 6533115
Filing Date: 2003-03-18
Classification: B65D

Abstract:
A packaging box for a spark plug, said spark plug including a center electrode, a terminal portion, a metallic shell having a large diameter portion at a center thereof and an engine engagement portion, an outer side electrode having one end coupled to said metallic shell, and an insulation member placed between said center electrode and said metallic shell for holding said center electrode at one end thereof and also holding said terminal portion at the other end thereof, said packaging box comprising:an inner box body made of paper for holding said spark plug, said inner box body including a protection box portion that is configured by a front side protection wall, a rear side protection wall, a top side protection wall and a bottom side protection wall for protecting said outer side electrode and said engine engagement portion of said spark plug; and an outer box body made of paper and having an inner box body housing space that is formed into a rectangular parallelepiped shape, wherein said top side protection wall has a bendable tab that is bent into an inner side of said protection box portion, said bendable tab in its bent state forms an engine engagement portion insertion part capable of inserting therein said engine engagement portion of said spark plug, wherein a bent edge of said bendable tab in its bent state supports a lower surface of said large diameter portion when said engine engagement portion of said spark plug is inserted into said engine engagement portion insertion part; and wherein said front and rear side protection walls have at least two bent edges that are formed by the bendable tabs, so that said bent edges are abutted against the lower surface of the large diameter portion of the metallic shell of the spark plug so as to support the spark plugs.