A sill gap monitoring system includes a sensor assembly configured to sense a sill gap between an elevator sill and at least one of a bottom surface of an elevator door and a bottom surface of a gib. The sill gap monitoring system generates an alert when the sill gap is greater than a sill gap limit.

A sill gap monitoring system includes a sensor assembly configured to sense a sill gap between an elevator sill and at least one of a bottom surface of an elevator door and a bottom surface of a gib. The sill gap monitoring system generates an alert when the sill gap is greater than a sill gap limit.

The present invention provides a maintenance safety apparatus for an elevator system and a method for operating the same, and belongs to the technical field of elevators. The maintenance safety apparatus of the present invention comprises a safety switch, a door lock device, a linkage control assembly and a linkage locking assembly. The maintenance safety apparatus of the present invention is very simple to operate and is capable of ensuring the safety of the staff entering a hoistway for performing maintenance operations.

A method is disclosed of operating an automatic door installation comprising door sensor equipment including a door sensor. The automatic door installation is operable in at least a standard mode, in which the door sensor equipment conducts an obstacle check to determine whether an obstacle is present according to a first obstacle check procedure, and a contingency mode, in which the door sensor equipment conducts the obstacle check according to a different second obstacle check procedure. The method includes the steps of evaluating an operating condition of the automatic door installation; determining whether the operating condition lies within a standard operating range; and operating the automatic door installation in the contingency mode when the operating condition lies outside a respective standard operating range.

A method is disclosed of operating an automatic door installation comprising door sensor equipment including a door sensor. The automatic door installation is operable in at least a standard mode, in which the door sensor equipment conducts an obstacle check to determine whether an obstacle is present according to a first obstacle check procedure, and a contingency mode, in which the door sensor equipment conducts the obstacle check according to a different second obstacle check procedure. The method includes the steps of evaluating an operating condition of the automatic door installation; determining whether the operating condition lies within a standard operating range; and operating the automatic door installation in the contingency mode when the operating condition lies outside a respective standard operating range.

An elevator hall door assembly and an elevator system, wherein the elevator hall door assembly includes a hall door header provided with a guide rail, a hall door hanger plate capable of translating in the rail of the hall door header; hall door panels located below the hall door hanger plate; guide shoes at the bottom of the hall door panels; and a hall door sill provided under the hall door panels, the hall door sill having a guide groove extending in a translation direction of the hall door panels, and the guide shoes being accommodated in the guide groove; anti-off members are further provided at the bottom of the hall door panels.

An elevator hall door assembly and an elevator system, wherein the elevator hall door assembly includes a hall door header provided with a guide rail, a hall door hanger plate capable of translating in the rail of the hall door header; hall door panels located below the hall door hanger plate; guide shoes at the bottom of the hall door panels; and a hall door sill provided under the hall door panels, the hall door sill having a guide groove extending in a translation direction of the hall door panels, and the guide shoes being accommodated in the guide groove; anti-off members are further provided at the bottom of the hall door panels.

Embodiments include techniques for operating an elevator safety control system and method. The techniques include charging one or more portions of an elevator system, the elevator system includes an elevator door and elevator frame, and monitoring a charge on the one or more portions of the elevator system. In addition, the techniques include detecting a change in the charge on the one or more portions of the elevator system, and responsive to the detection, controlling an operation of the elevator door.

Embodiments include techniques for operating an elevator safety control system and method. The techniques include charging one or more portions of an elevator system, the elevator system includes an elevator door and elevator frame, and monitoring a charge on the one or more portions of the elevator system. In addition, the techniques include detecting a change in the charge on the one or more portions of the elevator system, and responsive to the detection, controlling an operation of the elevator door.

A device for inhibiting the closing of a door that controls entry of an enclosure includes a first magnet disposed on a driven portion of the device and a second magnet disposed on a fixed portion of the enclosure. The first magnet and the second magnet are configured to be in register with each other as the door moves toward a closed position such that if the first magnet and the second magnet are in register with each other, a pole of the first magnet is in close proximity of a pole of the second magnet such that the first magnet and the second magnet react to each other to inhibit motion of the door towards the closed position.