| 摘要 |
<p>The invention relates to an elevator safety arrangement and a method for its operation. The safety arrangement of the invention comprises a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. The arrangement further comprises a controllable manipulator by means of which the mechanical safety device (10, 18,24) can be set into a working position, said manipulator being controlled by the electric safety controller comprised in the electric safety system. According to the method of the invention, the mechanical safety device is set automatically into the working position by appropriate control of the manipulator when it detects a control situation allowing both manual opening of a landing door and maintenance operation of an elevator maintenance operation unit.</p> |
