Abstract: A method for ensuring elevator safety in an elevator system, an elevator control unit, an elevator system, and a computer program product are disclosed in this document. The method comprises detecting a foreign object in an elevator shaft during normal operation mode, establishing a safe zone of the elevator shaft, wherein the safe zone is associated with a safe zone speed, a safe distance, and a safe direction, switching operational mode of the elevator system to a safe zone mode, determining that the elevator car is in the safe zone, and allowing movement of the elevator car in the safe zone to the safe direction at a speed not exceeding the safe zone speed.

Abstract: A method for detecting an overload condition of an elevator car of an elevator includes obtaining prevailing car-load information from a load weighing device arranged to weigh a prevailing car-load preferably when the elevator car is standing at a landing floor in an elevator shaft; determining if said prevailing car-load information fulfils one or more overload criteria; and generating a signal indicating an overload condition of an elevator car, if said car-load information fulfils one or more of said overload criteria; obtaining information of at least one operational parameter of the elevator; and adjusting one or more of said overload criteria or said car-load information based on said information of the at least one operational parameter of the elevator. An overload monitoring system and an elevator implementing the method are also disclosed.

Abstract: An inductive sensor device for monitoring gap clearance of an elevator door is arranged in association with the elevator door. The inductive sensor device is configured to obtain sensor data representing the gap clearance of the elevator door being in a closed state. The inductive sensor device is further configured to: monitor the gap clearance of the elevator door based on the obtained sensor data, and/or provide the obtained sensor data to a remote monitoring entity for monitoring the gap clearance of the elevator door. A method and a monitoring system for monitoring gap clearance of an elevator door are also disclosed.

Abstract: An apron device, an elevator car and method of protecting falling into an elevator shaft. The apron device comprises a first protective element and a second protective element which are both located under a door sill of an elevator car. The elements form together a bending stiff sleeve structure which can move in relation to the elevator car. The first protective element can lift the second protective element being closer to the elevator car. When the second protective element is lifted, its upper part moves in transversal direction towards a space below a bottom of the elevator car. The first protective element is moved only in vertical direction.

Abstract: The measurement arrangement for measuring the rotation speed of a component of an elevator, escalator, moving walkway or moving ramp comprises an inductive sensor that is arranged stationary in respect of a rotation axis of the component and adjacent to the component or a measurement part that is attached to the component in a rotationally fixed manner, and the component or the measurement part is configured as rotationally unsymmetrical about the rotation axis so that different angular positions of the component about the rotation axis generate different output signals in the inductive sensor.

Abstract: A rope and an elevator. The rope comprises a core, an outer layer of strands, comprising at least four outer strands, and an elastomeric coating creating at least the outer surface of the rope.

Abstract: The elevator arrangement includes an elevator shaft, an elevator car configured to be moveable in a vertical direction along the elevator shaft, an electromechanical safety device to which safety device electrical power is supplied during operation of the elevator, and which safety device is configured to be triggered when power supply to the safety device is cut off, wherein triggering of the safety device is configured to prevent movement of the elevator car above at least one predetermined upper position and/or be-low at least one predetermined lower position, and a reserve power source, wherein the arrangement is configured to allow power supply from the reserve power source to the safety device for allowing moving of the elevator car above the at least one predetermined upper position and/or below the at least one predetermined lower position when normal power supply to the safety device is cut off.

Abstract: An elevator shaft element, an elevator arrangement and a method. The elevator shaft element comprises a frame module arranged for receiving an elevator car therein. The frame module is constructed from a transport and/or storage unit, comprising side walls, a bottom wall and a roof wall. The unit is arranged to be positioned vertically such that said side walls, bottom wall and upper wall of the unit define an inner space of the elevator shaft. Elevator car guides for guiding movement of the elevator car in the elevator shaft element are attached to said bottom wall and/or roof wall.

Abstract: An elevator system includes an elevator car, and a hoisting machine moving the elevator car in a hoistway. To simplify maintenance work of the hoisting machine, the elevator system includes an acceleration sensor connected to the hoisting machine, and a computing unit which is responsive to a signal provided by the acceleration sensor and which sends condition data based on a predetermined processing of the signal.

Abstract: An elevator element manufacturing method, an elevator element and an elevator are disclosed. The manufacturing method includes providing in powder and/or granulate form a material comprising compound comprising silicon and a second divalent metal, filling a mould with a mixture including the material and water, adding CO2 in the mixture in the mould, allowing water and CO2 to react with the material under overpressure, thereby creating bonding structures based on metal carbonates (MCO3).

Abstract: An elevator element manufacturing method, an elevator element and an elevator are disclosed. The manufacturing method includes providing material including aluminium silicate precursor and/or calcium silicate precursor in powder and/or granulate form, filling a mould with a mixture including the material, alkalic reactance, and water for creating a mixture, and allowing the mixture to realize a polycondensation reaction in the mould for forming a polymer structure based on polycondensation bonding structures.

Abstract: The invention relates to a method for resetting a shaft access monitoring system of an elevator system. The method comprises: receiving an input from a user interface arranged in the elevator system, the input is provided with at least one input device of the user interface arranged to control an operation of the elevator system; comparing the received input to a reference value; and setting, in accordance with a comparison between the received input and the reference value, a detection result to express one of the following: (i) the shaft access monitoring system shall be reset, (ii) the shaft access monitoring system shall not be reset. The invention also relates to a control unit, to an elevator system and a computer program product.

Abstract: An elevator shaft element, an elevator arrangement and a method. The elevator shaft element comprises a frame module arranged for receiving an elevator car therein. The frame module is constructed from a transport and/or storage unit, comprising side walls, a bottom wall and a roof wall. The unit is arranged to be positioned vertically such that said side walls, bottom wall and upper wall of the unit define an inner space of the elevator shaft. Elevator car guides for guiding movement of the elevator car in the elevator shaft element are attached to said bottom wall and/or roof wall.

Abstract: A tension member tension monitoring arrangement and method for measuring tension member tension of elevator tension members of a bundle of tension members, the elevator comprising an elevator car suspended by the tension members, such as ropes or belts, of the bundle of tension members, a termination at one end of a tension member and a mounting plate for attaching the termination relative to the hoistway, counterweight and/or the elevator. The tension member tension monitoring arrangement comprises at least one capacitive pressure sensor arranged in connection with a tension member termination. The arrangement further comprises a control unit connected to the at least one sensor.

Abstract: An elevator car (100) defining an interior space (1) for accommodating passengers. The elevator car (100) comprises an openable roof (2), horizontal roof guide rails (13a, 13b) arranged on a top side of the elevator car (100), a support structure (4) pivotably mounted to the guide rails (13a, 13b) by a first joint (5a, 5b), and a working platform (6) pivotably and movably mounted to the support structure (4) by a second joint (7a, 7b) arranged at a distance from the first joint (5a, 5b). The working platform (6) is pivotable between a retracted position, in which said working platform is oriented close to the guide rails (13a, 13b) in the top side of the elevator car, and a deployed position, in which the working platform (6) is in the interior space (1), at a distance from the guide rails (13a, 13b). The first joint (5a, 5b) being arranged movable along the guide rails (13a, 13b).

Abstract: The invention relates to a method for generating an elevator call. The method comprises: obtaining (202) image data representing at least one symbol (310, 310a, 310b) illustrated on a symbol representing device (320) from at least one image sensing device (112), identifying (204) the at least one symbol (310, 310a, 310b) from the obtained image data, and generating (206) the elevator call in accordance with the identified at least one symbol (310, 310a, 310b). The invention relates also to an elevator control unit (108) and an elevator system (100) performing at least partly the method.

Abstract: The method includes loading and/or unloading the car, determining whether the car doors are fully closed or not fully open, measuring a total actual axial mass F?act hanging from the traction sheave, determining a stalling limit total minimum axial mass F?min, checking reopening of the car doors, whereby if the car doors are reopened, then return to beginning, else, continue, permitting starting of elevator, comparing the total actual axial mass with the stalling limit total minimum axial mass, whereby if the total actual axial mass is equal to or greater than the stalling limit total minimum axial mass, then permit normal run of the elevator car to the next landing, else, stop the elevator.

Abstract: An element includes a vibration isolation pad with two opposite substantially planar surfaces, an elastic material layer being permanently attached to a first of the two substantially planar surfaces of the vibration isolation pad, a load sensor arrangement integrated into the combined elevator vibration isolation and load measurement element. A load acting on the combined elevator vibration isolation and load measurement element can be measured with the load sensor arrangement as a function of the compression of the elastic material layer.

Abstract: The measurement arrangement for measuring the rotation speed of a component of an elevator, escalator, moving walkway or moving ramp comprises an inductive sensor that is arranged stationary in respect of a rotation axis of the component and adjacent to the component or a measurement part that is attached to the component in a rotationally fixed manner, and the component or the measurement part is configured as rotationally unsymmetrical about the rotation axis so that different angular positions of the component about the rotation axis generate different output signals in the inductive sensor.

Abstract: The invention concerns a method, system and computer program for monitoring the run of a roping interconnecting a car and a counterweight of an elevator and for detecting an abnormal operation condition during the drive of a traction sheave intending therewith the car and the counterweight to be moved via said roping. Said roping is running on its way from the car to the traction sheave via at least one pulley and on its way from the counterweight to the traction sheave via at least one pulley, wherein the rotation of said at least two pulleys is monitored by sensing their rotation. These rotation data are then analysed in view of a mutual correlation indicating therewith a synchronized run of the roping on either side of the traction sheave, and detecting therewith an abnormal situation when detecting an absence of such correlation.