| 摘要 |
<p>In accordance with the present invention an inner straw component has an outer diameter smaller than an inner diameter of a tapered portion (11) formed adjacent the forward end of the outer straw component to facilitate a telescopical movement of the inner and outer straw components so that even the powerless users such as children or women easily handle the extensible straw assembly consisting of said inner straw component and said outer straw component. Additionally, at the final stage of extension, an intermediate diameter-enlarged portion (5) of the inner straw component presses against the inner wall of the tapered portion (11) formed on the outer straw component in tightly engaged relationship and, accordingly, the inner and outer straw components are coupled to each other firmly enough to overcome a reaction encountered by the extended straw assembly during piercing the container of beverage. Furthermore, the tightly engaged relationship established between said both portions contributes also to assure a desired air-tightness.</p> |
