| 摘要 |
<p>Holding devices, rotatably supported in frame members for movement to and fro in the head of the blind, provide mountings for ribs or lamellae. The activating device for moving these incorporates a bar-shaped device rotating in the head, and a device to turn this. There is a set of sprocket wheels revolving in the frame members, turned by the bar and a second set, firmly connected to the holders and engaging the first set. This results in a turn of the bar-shaped device effecting a turn results in a turn of the bar-shaped device effecting mechanism for sloping slats of a vertical blind, and for opening and closing, are improved.</p> |
