| 摘要 |
<p>The mechanism slides flexible strips of material, folding partitions etc. along supporting guide rails. IT uses a coil spring or screwed spindle working in bearings. The spring etc. (2) is driven by any suitable motor etc. (1) via a shaft (1') in either direction, and works in a cylindrical or prismatic housing with a guide slot through which the driving dogs (7) for the strip etc. pass. It turns freely in the housing, but is prevented from deflection at three or more peripheral support points.</p> |
