TOP LID FOR BEVERAGE CANS WITH OPENER INTEGRATED SANITARY COVER

摘要

A top lid for beverage cans (1) with an opener integrated sanitary cover (8) is disclosed. The sanitary cover (8) is designed to cover the area around th e opening piece (3a) defined on the top lid by a depressed seam (3c), thus protecting the lip contact portion of the top lid from atmospheric impuritie s and keeping the can sanitary during storage of the can. The sanitary cover ( 8) also has a reinforced opener part (13) which presses down the opening piece (3a) and breaks the piece along the depressed seam (3c) when the cover is levered up. The opener part has a reinforcing rib (13b) improving the stiffness of the opener part (13) and so the opener part (13) reliably break s the opening piece without failure even though a high pressure acts on the interior surface of the opening piece. The configuration and arrangement of the reinforcing means for the opener part may be freely changed in accordanc e with the designing conditions of the can, or the interior pressure acting on the opening piece and the size of the can. The sanitary cover (8) also has a thumb-operable resilient dome (6) used for elastically raising up the cover when the dome is pressed down by a thumb. Due to the dome, it is easy for a user to grasp and handle the cover (8) while levering up the cover (8) to op en the top lid ofthe can (1).