| 摘要 |
<p>An accident-preventing safety device for automatic moving closure barriers, such as gates, main doors, overhead doors, and the like, including a first part (2) which is pivoted to a second part (4) which can be anchored to a closing edge (C) of a barrier (A) and elastic contrast means are interposed between the first and second parts (2, 4) to keep them usually mutually spaced. Electrical switching means (10) which are suitable to stop and/or reverse the motion of the barrier (A) in the presence of external forces (F) which act on the first part (2) and contrast the elastic means (5) are provided. The switching means can be constituted by at least one electrical microswitch (10), anchored to one (4) of the first and second parts and having a button (11) adapted to interact with a protrusion (12) formed in a facing position on the other part (2). <IMAGE></p> |
