| 摘要 |
<p>The scissors lift is operated by a spindle or belt drive (43). This moves a slide (40) in a guide slot (33) in the upper end of one leg (30) of the scissors. A lever (50) is pivoted on the slide and its other end is linked to a second lever. The other end of this slides in a second slot (34) in the lower end of the leg.</p> |
