| 摘要 |
<p>A sealing device for a zip fastener, comprising a lock having therethrough a channel, of which a wall portion is resilient and into which can be inserted the shaft of a disposable sealing member comprising a head and a shaft under temporary deformation of the resilient wall portion, and then be retained therein secured against withdrawal and rotation, while the head fixes the pulling lip of the zip fastener and the pulling lip is provided with a rotatable disc having a receiving cavity for the head of the sealing member, all this in such a manner that as a result of rotation of the disc the shaft of the sealing member can be twisted to fracture.</p> |
