| 摘要 |
<p>Device for preventing the transfer of fire and/or smoke comprises a gearing system (5) with a driving crank (9) and a driven crank (11). The driving crank is arranged on the adjusting part of a triggering unit and the driven crank is arranged on the pivoting axle of a blocking device. The cranks are connected to each other via a coupling rod (13). Preferred Features: The coupling rod is arranged on the driving crank and the driven crank so that a rotary movement of the cranks working in opposite directions is produced during actuation of the gearing system.</p> |
