| 摘要 |
A chair base includes a hub having a longitudinally extending interior bore and an exterior surface. The bore includes an upper portion having a first interior wall and a lower portion having a second interior wall. The lower portion is positioned below the upper first portion. A stop feature is positioned between the upper and lower portions. The stop feature extends radially inwardly from at least the first interior wall. In various embodiments, the stop feature is curved. Methods of manufacturing a chair base are also provided. |
