| 摘要 |
The invention relates to a plastic bottle cap in two parts. The first part (1) of said cap is annular-shaped and exhibits on its external lateral surface a plurality of projections (5), while the second part comprises a screw-up (2) inferiorly to which is connected a breakable seal (4) by means of easy-breaking webs (6); the cap exhibits a plurality of teeth (7), arranged parallel to the webs (6), which, on first screwing-on of the cap on to the bottle, are inserted between the projections (5) of the first part (1) and bear the forces which are generated during the screwing-on; since the teeth (7) are not connected to the breakable seal, the teeth (7) do not obstruct the detachment between the bottle-top and the breakable seal (4) when the cap is first unscrewed.
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