FILLABLE CLOSURE COMPRISING A PUSH BUTTON FOR TRIGGERING

摘要

The fillable closure is used to trigger the emptying of a capsule (2) that belongs to said closure and can be inserted in the closure and filled separately. The closure consists of a closing cap (1) which can be screwed or snapped on the neck (40) of a container and in which a separately fillable capsule (2) can be inserted in the closed state from beneath. The region above the inserted capsule (2) on the closing cap (1) forms a push button (4) having a central pusher surface (6). A downwardly projecting protuberance (9) is molded on the lower face. Said protuberance (9) abuts against the upper face of the inserted capsule (2). Using pressure from above, the push button (4) can be pressed such as to deform the initially convex shape as seen from above into a concave shape, the protuberance (9) pushing the upper face (13) of the capsule (2) and the content thereof downward. The film (15), which forms the lower face of the capsule (2), is thus placed under tensile stress such that it breaks or bursts along weakened lines.