| 摘要 |
<p>The self-opening closure comprises a pouring spout (3), a screw cap (1) and a self-openingcylinder (2) which is disposed inside the pouring spout (3) and can be set rotatingby the screw cap (1). The self-opening cylinder (2), on its lower rim and protrudingtherefrom, comprises three combined piercing and cutting elements (5, 6, 7).These elements are disposed on two opposite positions on the periphery and ina position between the two. The interior of the self-opening cylinder (2) is providedwith three nail-type integrally molded elements (9, 10, 11) which are evenlydistributed across the periphery and extend towards the center of the cylinderand have a nail shank (12) and a nail head (13). The nail shank (12) and the bottomside of the nail head of every integrally molded element acts as a guide for oneof the three cylinder wall segments that are located on the interior of the capconcentrically to the axis of rotation of the cap. The screw cap (1), on is lowerrim (25), is connected to a flat retaining element (21) via at least two materialbridges (22, 23, 24) that extend non-radially in relation thereto and that areconfigured as predetermined breaking points. Said retaining element can engagewith the flange (20) of the pouring spout (3) in a horizontal position by meansof pins.</p> |
