| 摘要 |
A molded polymer cap generally including a hollow body defining a central channel, a closed cap end, an open receiving end, and a plurality of resilient internal fins. A first portion of each internal fin runs longitudinally down the body from the closed cap end toward the open receiving end, extending laterally inward from the body into the central channel, and deflecting toward the cap body to contact to the side surfaces of an inserted object. A second portion of each internal fin runs partially longitudinally and partially laterally down the body from the end of the first portion toward the receiving end of the device, extending laterally inward from the body into the central channel, and exposing a broad side of each fin to the advancing end of an inserted object. The first and second portions of each internal fin are connected to each other, so that a deflection will propagate ahead of the advancing end of an inserted object.
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