Closure cap with snap hinge and retaining ring

Abstract

The present invention concerns a closure (10) consisting of a cap portion (1), a retaining ring (3), a tear strip and a snap hinge (20), the snap hinge connecting the cap portion and the retaining ring in a single piece along a first circumferential section, wherein the cap portion (1) has a top plate (14) and the closure having overall a substantially cylindrical or slightly tapered closure skirt which, inter alia, comprises a substantially cylindrical cap skirt and the retaining ring (3), wherein the snap hinge (20) is integrated into the skirt and wherein the retaining ring (3) and the cap portion (1), in addition to being connected via the snap hinge (20), are also connected together along a second circumferential section (30) via the tear strip (4) which is also integrated into the skirt. To produce such a closure but at low cost and preferably using only a little material, and in particular to provide improved protection of the inside of the closure against environmental influences, the invention proposes that the cap skirt, tear strip, snap hinge and retaining ring together define an essentially closed closure skirt wherein the tear strip and the ends of the snap hinge (20) in the circumferential direction are connected with the cap skirt and/or the retaining ring and optionally with one another via film-like, easily tearable lines of weakness.

Dependencies are inferred from the claim text.