| 摘要 |
The specification discloses a glide within a glide, and most preferably three glides in one which enables the manufacturer to supply two or three different types of glides with one basic glide unit having common parts. The first glide member is made of hard plastic and has a rounded, bottom shoulder surrounding a downwardly opening cavity therein. A second glide member comprises a soft, plastic member seated within said cavity and projecting a short distance below said rounded shoulder, at least when the glide is unweighted. A third glide member comprises a metal cap which seats over the second glide member and against first glide member to provide a metal bottom surface type of glide.
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