| 摘要 |
The present invention relates to a cap comprising a body (32), an opening (34) passing through the cap (30) and adapted in turn to be passed through by at least one product transfer member (20), and a membrane (40) which, at rest, covers the opening (34). The membrane (40) has a main portion that extends through the opening (34) and defines two inclined faces (45A, 45B), each inclined face having a distal edge (46A, 46B). The two inclined faces (45A, 45B) form a dihedron when the membrane (40) is at rest, the distal edges (46A, 46B) of the two inclined faces coming together at the apex (47) of the dihedron. The cap comprises at least two flaps (35A, 35B) that extend through the opening (34), above the membrane (40), the two inclined faces (45A, 45B) of the membrane being respectively covered by two flaps (35A, 35B), each flap having a free edge (36A, 36B) that extends along the distal edge of the corresponding inclined face. |
