Patent ID: 8925980
Filing Date: 2015-01-06
Classification: B66B,E04B,Y10S,Y10T

Abstract:
1. A method for opening and closing a suspended ceiling of an elevator car, the suspended ceiling being at least partially supported by one or more locking devices, the method comprising: pre-tuning the one or more locking devices from a locking state, in which at least a part of the suspended ceiling is locked in a first position, to an unlocked state, in which at least the part of the suspended ceiling is releasable from, but held in, the first position by the one or more locking devices; holding, after the one or more locking devices are pre-tuned to the unlocked state, at least the part of the suspended ceiling in the first position until at least the part of the suspended ceiling is released from the first position by being lifted upwards in a first direction and then lowered in a second direction; releasing at least the part of the suspended ceiling from the first position by lifting at least the part of the suspended ceiling upwards in the first direction; and lowering at least the part of the suspended ceiling in the second direction to a second unlocked position.