TAMPER-PROOF CLOSURE

摘要

Tamper-proof closure (1) consisting of a closure cap (2) with an internal thread and capable of being screwed on to a receptacle neck designed with a complementarily arranged matching thread and with an annular projection, particularly a transfer ring, provided under the matching thread, and consisting of a safety ring (10) which with its upper edge is joined via connection points and/or fracture points to the lower edge of the closure cap (2) in which closure at least two possibly mutually linked locking catches (17), which have ribs on their outer surfaces according to especially preferred designs, are extended, in the manufacturing position, downwards over the lower side of the safety ring (10) and whereby each locking catch (17) is connected individually with the lower side of the safety ring (10) by means of a hinge or film hinge (27). According to a preferred design the hinges or film hinges (27) are characterized in that the inner diameter of the locking catches (17) is slightly smaller than the outer diameter of the safety ring (10). The locking catches (17) are oriented inwards in order to engage the annular projection, in particular the transfer ring, said orienting being effected in particular by a specially-designed punch preferably between two defined end positions, whilst producing a pivoting resistance past a dead point; The locking catches, in this relative position, have, as a result of especially preferred designs, means which ensure the inward opening-out of the locking catches (17).