| 摘要 |
<p>The shade has two window shade rail supporting devices (24, 23), through which a roll shaft (22) is rotatably and translationally supported at two ends of a window shade rail (21), respectively. One of the window shade rail supporting devices has a threaded pin and a threaded hole fitted on the threaded pin to translationally move the roll shaft with rotation around its longitudinal axis.</p> |
