Pilfer-proof closure with tear-away holding claws

摘要

The invention concerns an original-seal closure means made of plastic and for threaded mouths at containers, in particular bottles. The closure means includes a screw cap to which a hood is fastened with axial play. Studs are present at both the hood and the screw cap, which can be engaged and disengaged within the said axial play and which act as drive means. To secure the original seal, the screw cap is provided with tear-off elements which engage by means of claws underneath the retainer lip. When the mouth is sealed, the claws are held in this position by the hood. When the closure is opened the first time, the tear-off elements are perforce torn off. In additional child-proof design, a set of studs is designed in such a manner that they shall always act as drive means during the screwing shut process while they shall act thusly during unscrewing only if in addition to the torque an axial force is exerted toward the mouth.