Plastic paper clip has rounded edges and tips curved inwards to prevent it picking up unwanted sheets of paper

摘要

The paper clip, made from injection-moulded plastic of adequate elasticity and in various colours, consists of two concave jaws (1, 2) of different lengths joined at the top (3). The jaws have rounded outer edges and tips (4, 5) that curve inwards and lie in the same plane; the plane also passes through the top of the clip. The clip can be made in various sizes and iis capable of holding together a substantial number of sheets.