| 摘要 |
<p>The device (100) has a proximity detector (110) detecting a presence of plate or person at a front of an opening (O). An electric jack (120) operates a shutter (V), where the electric jack and the detector are connected to a control unit that controls the operation of the jack for opening the shutter. The control unit is locked in a sealed case, and an articulated mechanism (150) has an arm mounted around an articulation (162).</p> |
