| 摘要 |
A tamperproof closure (1), effective to make any opening attempt irreversibly evident, comprises a cylindrical body (3) adapted for association with a bottle (2), a cap (7), a thread connection (10) between the cap (7) and the cylindrical body (3), a tamperproofing band (12) made unitary with the cap (7) through a weakening line (11), a plurality of teeth (14) distributed around the cylindrical body (3) and a corresponding plurality of cams (15) distributed around the band (12), each cam (15) being located before a respective tooth (14) in the unscrewing direction of the cap (7) and interfering with the tooth (14) during the unscrewing operation so as to be displaced outwardly and distort the band (12) locally into a projection (16). <IMAGE> |
