| 摘要 |
Trapped air is used to hold a sleeve onto an elongated member such as a vertical post or pillar. A sleeve is provided having an open end and a closed end, and an inner diameter which is at least slightly greater than the outside diameter of the member being covered. At least one spacer is provided circumferentially around the member, which is positioned proximate to the end over which the open end of the sleeve is placed for installation purposes. As the sleeve is subsequently urged over the member, air trapped between the end of the member including the spacer and the closed end of the sleeve is expelled past the spacer and out the open end of the sleeve between the outside wall of the member, such that when the sleeve is fully installed, a relatively small volume of air remains between the end of the member with the spacer and the closed end of the sleeve. With such a configuration, if one then attempts to pull the sleeve off the member, air movement past the spacer in the opposite direction is again very slow, preventing the sleeve from being pulled off the member without a substantial effort. In the preferred embodiment, two spaced-apart bands of resilient adhesive tape are used to provide the spacer material. In an alternative embodiment the sleeve itself may be formed having one or more circumferential bands with an inside diameter slightly less than the inside diameter of the sleeve overall.
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