| 摘要 |
<p>The present invention is directed to a modular roll-up partition assembly (10), such as a rolling protective shutter, implementing an improved mechanism for raising the partition (30) in an emergency by disengaging a motor (42) from a rolling shutter (30). The mechanism includes a cable (78) that passes through an axial passage in a torsion spring (68). When the cable (78) is pulled, the coupling mechanism is separated from the motor drive shaft (44), thereby disengaging the motor drive shaft (44) from the shutter support member (22) and permitting the torsion spring (68) to quickly raise the rolling shutter (30). The motor drive shaft (44) may also be disengaged to allow the partition (30), such as a fire door, to be unrolled to cover the opening.</p> |
