CLOSURE ARRANGEMENT FOR EASY OPEN TYPE CONTAINER

摘要

A closure arrangement adaptable for an easy open type container including a score line wherein a crossing position of the score line portion lying on the longitudinal axis of a pulling tab passing through the center of a rivet is a minimum distant point from the center of the rivet. The score line portion extends from the minimum distant point right and left and projects outwardly in the region between a first subsidiary line crossing at right angles to the longitudinal axis at the minimum distant point and a third subsidiary line passing through the center of the rivet and extending in parallel with the first subsidiary line, so as to form a pair of swelling score line sections on both sides of the rivet. In this manner, the initial opening force can be decreased, and an easy opening closure can be made even if the score residual is made thicker than that in a conventional closure.