An elevator end termination for an elevator belt includes a wedge housing, a segmented wedge disposed axially within the wedge housing. The segmented wedge includes at least two wedge members spaced apart from one another to define a space therebetween. At least one pressure sensor is disposed in the space defined between the at least two wedge members. The at least one pressure sensor registers compressive pressure exerted between the at least two wedge members. The at least two wedge members may include a pair of adjacent longitudinally-extending wedge members, and a wedge crown adjacent a first end of each of the longitudinally-extending wedge members and separated therefrom by a transversely-extending space. The space is a longitudinal slot between the adjacent wedge members.

Provided is a wire rope flaw detector, which is capable of improving detection accuracy for a wire rope breakage by keeping an interval between a wire rope to be subjected to a measurement and an adjacent wire rope. The wire rope flaw detector includes: a magnetizer, which is configured to form a main magnetic path in a predetermined set interval of a wire rope in an axial direction of the wire rope; a detection coil, which is arranged in the predetermined set interval so as to be magnetically insulated from the magnetizer and is configured to detect a leakage magnetic flux generated by a damage portion of the wire rope; and position restricting mechanisms, which are configured to keep an interval between the wire rope passing through the detection coil and a wire rope adjacent to the wire rope passing through the detection coil.

The invention relates to a method for defining a condition of an elevator car suspension means. The method includes detecting a rate of change of elongation of the elevator car suspension means in order to define the condition of the elevator car suspension means. The invention relates also to an elevator safety control unit and an elevator system performing at least partly the method.

A belt for suspending and/or driving an elevator car extending longitudinally along a length of the belt. An inner belt layer formed from a first material is bonded to the plurality of tension elements at a first side of the belt. The inner belt layer forms an inner belt surface interactive with a traction sheave of an elevator system. An outer belt layer formed from a second material is bonded to the plurality of tension elements at a second side of the belt. The plurality of tension elements are located between the first side and the second side.

The invention relates to a method for defining elongation of an elevator car suspension means. The method comprises: obtaining periodically a value representing an overtravel distance of the elevator car, and defining the elongation of the elevator car suspension means on a basis of the periodically obtained values representing the overtravel distance of the elevator car. The invention relates also to an elevator system performing at least partly the method.

An elevator system includes a travelling cable connected to an elevator car and to a hoistway wall. The travelling cable includes an electric conductor and/or a data carrier operatively connected at a first end to a feed source and at a second end to service appliances of the elevator car. A protective layer includes an outer diameter and surrounds the electric conductor and/or data carrier. A duct is connected at a first open end to a fluid source and at a second openable end to the elevator car. A sensor system is configured for detecting swaying amplitude of the travelling cable. A microprocessor is associated to the sensor system and to the fluid source. The microprocessor is configured for receiving swaying amplitude data from the sensor system and for operating the fluid source when the swaying amplitude exceeds a predetermined threshold.

A break detection device includes a sensor, an abnormal variation detection unit (22), a storage unit (20), an arithmetic unit (23), and a break determination unit (24). The arithmetic unit (23) increases a determination score when the abnormal variation detection unit (22) detects occurrence of an abnormal variation when a car (1) passes a position stored in the storage unit (20). The arithmetic unit (23) decreases the determination score when the abnormal variation detection unit (22) does not detect the occurrence of the abnormal variation when the car (1) passes the position. The break determination unit (24) determines whether or not a broken portion is present in a rope on the basis of the determination score.

A tension member verification system of an elevator system includes one or more identifier elements located at the tension member. The one or more identifier elements include one or more configuration parameters of the tension member. A detector is positioned and configured to verify presence of the one or more identifier elements, and is configured to read the one or more configuration parameters of the tension member. An elevator system controller is operably connected to the detector and is configured to compare the detected one or more configuration parameters to stored configuration parameters stored at the elevator system controller, and take one or more actions in operation of the elevator system based on the result of the comparison.

An elevator includes a shaft, a car movable in the shaft, a drive operatively connected to the car and by which the car can be moved, a brake, a plurality of shaft doors and a safety control system. The safety control system has a secure safety control unit of a first type and at least one secure safety control unit of a second type. The safety control unit of the first type and the at least one safety control unit of the second type are interconnected. The at least one safety control unit of the second type collects a state of any of the shaft doors. The safety control system is adapted such that the state of each of the shaft doors can be collected directly only by one of the safety control unit of the second type.

A health monitoring system for an electrically-conductive tension member of an elevator system belt includes a transmitter including a transmitter coil configured for placement at the tension member, a receiver configured to be positioned at the tension member, and a controller operably connected to the transmitter and the receiver. The controller is configured to direct an alternating current through the transmitter coil resulting in the generation of a magnetic field and eddy currents at the transmitter coil, evaluate fluctuations in the magnetic field detected at the receiver. The fluctuations are indicative of wear or damage to the tension member.