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发明授权
CN101395064B 一种具有不连续圆形切割环的封口装置 失效 - 权利终止 转让

一种具有不连续圆形切割环的封口装置
摘要：
本发明涉及一种塑料封口装置，所述封口装置包括一个底部部件、封口盖和切割环，该切割环装配在底部部件颈内部，因而可螺旋移动。拨杆(16)在封口盖旋开时，轴向地作用于不连续圆形切割环上，因此切割环以螺旋切割运动刺穿并割透容器。切割环构成了一个排气管口(6)，该排气管口(6)与拨杆(16)相互配合。非圆形切割环底部装有一个沿钝角延伸的锐缘切割刃，所述钝角为锐缘切割刃与所述圆环底边所成的角，该切割刃在封口盖旋开时，以类似于前进中的刀具的形式进行螺旋切割，便可以最小的力量轻易切开容器壁，其原因在于新式的尖端持续切割包装材料，从而避免了碎片的出现。置于非圆形切割环上的凹槽(6)在倾倒内容物时，作排气管口(26)用，从而获得极度稳定、无突涌的倾倒动作。
摘要（英）：

The invention relates to a plastic closing device comprising a bottom part, a closing cap, and a cutting ring which is mounted inside the neck of the bottom part so as to be helically movable. A driving cam (16) which is axially disposed in the closing cap acts upon the non-continuously circular cutting ring when the closing cap is unscrewed such that the cutting ring perforates and cuts through the receptacle in a helical cutting movement. The cutting ring forms a ventilating concavity (6) which cooperates with the driving cam (16). The non-circular cutting ring, the bottom side of which is provided with a sharp cutting edge extending at an obtuse angle relative to the bottom edge of said ring, performs a helical cutting movement similar to an advancing knife when the closing cap is unscrewed such that the receptacle wall is easily cut by applying a minimum amount of force because a new sharp point constantly attacks the packaging material, thus preventing shredding. The recess (6) that is provided on the non-circular cutting ring acts as a ventilation duct (26) when the content is poured, obtaining an extremely steady, non-gushing pouring action.

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