| 摘要 |
<p>A safety device for the emergency evacuation of a cabin at a safe floor in an elevator shaft includes a main motor, a three-phase current cable, a conveyor, an electric brake, an inertia flywheel, wheels positioned around the outer periphery of the inertia flywheel for driving/stopping such flywheel, a gripper frame positioned around the outer periphery of the inertia flywheel for pushing the driving/stopping wheels against such outer periphery, an electromagnet for actuating the gripper frame, and an auxiliary motor for supplying electrical energy to the driving/stopping wheels.</p> |
