| 摘要 |
Closure for a bottle comprising an inner cap of plastics material having an end wall (9) and a tubular skirt (10) which is provided with an internal thread (12) which engages a corresponding thread (5) provided on the neck of the bottle; an outer cap (14) of sheet metal which covers the said inner cap and which is fixed to the neck of the bottle by fixing means (22), wherein at least one circular weakening line (19) is provided in the said sheet metal outer cap (14); the said outer cap (14) has a tubular shape and is provided with an annular enlargement (24) forming an inner annular channel (25) delimited by corresponding axial end stops (26, 27); said channel (25) faces the tubular skirt (10) of the inner cap which is provided with an annular thickening (28) extending radially and axially,wherein the said thickening (28) is delimited by corresponding axial end stops (29, 30) and is force-fitted into the said channel (25).
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