| 摘要 |
<p>A device and a method for opening and closing a wing (18) in the form of a smoke-vent, a comfort vent, a skylight or a hatch hingedly attached to a first fastening means (2) including at least one rotational actuator (10) connected to a suspension rod (8) which is connected to a second fastening means (4) and an actuation arm (12) wherein the rotational actuator (10) is mounted between the suspension rod (8) and the actuation arm (12) that is pivotally attached to the wing (18), where the rotational actuator (10) provides a relatively angular displacement of the actuation arm (12) relative to the suspension rod (8) causing rotation of the wing (18).
</p> |
