| 摘要 |
The invention features, either separately or in combination, a mounting member and an elongated strip of resilient material which strip is secured in and partially surrounds the mounting member, where the resilient strip member has a semi-cylindrical body with a pair of circumferentially facing edge portions. The resilient strip also includes a pair of oppositely disposed, radially-inwardly extending latch members, each extending longitudinally of the latch member and located between one of the edge portions and a point away from the mid-line of the semi-cylindrical body. The mounting member includes a web portion having a pair of oppositely disposed web-latch extensions extending across a chord of the semi-cylindrical body, substantially parallel to a tangent to the circumference of the semi-cylindrical body at its mid-line, and at least one leg member extending from the web portion away from the semi-cylindrical body. A pair of oppositely disposed base members, each extend from a leg member, away from each other and each terminate in a base latch portion. Each of the pair of web latch extensions mates with the semi-cylindrical body adjacent the radial latch member, between the latch member and the mid-line of the semi-cylindrical body and each of the pair of base latch portions mates with the semi-cylindrical body adjacent the radial latch member, between the latch member and the closest edge portion.
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