| 摘要 |
<p>The support (2) for an article (40) has teeth (16a-e) which engage in the teeth (26) of a toothed rack (4). The depth of the tooth on the support that is furthest from the end of the rack (16a) is less than that of the next tooth (16b) which is less than the depth of the other teeth (16c, d, e).</p> |
