Abstract: The invention relates to a method for inspecting quality and/or condition of an elongated composite member, which is a load bearing member of a rope of a hoisting apparatus, such as an elevator, or a precursor of such a load bearing member, the method comprising providing an elongated composite member; and changing the temperature of said elongated composite member by heating or cooling said elongated composite member via a flank thereof; and scanning said elongated composite member from a lateral side thereof with a thermal imaging device after said changing of the temperature; and creating thermographic images of said elongated composite member.

Abstract: The invention relates to an arrangement for condition monitoring of a rope of a hoisting apparatus.

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: A hoisting device rope has a width larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material, the composite material including non-metallic reinforcing fibers, which include carbon fiber or glass fiber, in a polymer matrix. An elevator includes a drive sheave, an elevator car and a rope system for moving the elevator car by means of the drive sheave. The rope system includes at least one rope that has a width that is larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material. The composite material includes reinforcing fibers in a polymer matrix.

Abstract: 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.

Abstract: The invention relates to a belt-shaped rope of an elevator having opposite lateral sides facing in thickness direction of the rope, at least one of the lateral sides being shaped to have elongated ribs that are disposed adjacent each other in width direction of the rope and extend parallel with the longitudinal direction of the rope. Each said rib has a first flank face for contacting a flank face of a rib of a rope wheel, and a second flank face for contacting a flank face of a rib of a rope wheel. Each said first and second flank face is shaped to have an arcuate cross-sectional profile, and said first and second flank face are shaped to arc to such steepness that the angle defined between their tangents is acute, and the surface material of said flank faces has shore A hardness more than 85 and less than 100. The invention also relates to an elevator arrangement as well as to an elevator, implementing the aforementioned belt-shaped rope.

Abstract: An arrangement for monitoring an elevator, including at least one elevator rope and an entity along which the at least one elevator rope is arranged to travel at least in part, includes at least one inductive sensor positioned so that a magnetic field generable by the at least one inductive sensor extends at least in part over the at least one elevator rope; and a control device for obtaining measurement data from the inductive sensor. A method for monitoring the elevator, a computer program product and an elevator system are also disclosed.

Abstract: An elevator rope monitoring device includes at least one source of electromagnetic radiation for emitting a radiation beam, at least one sensor for receiving at least part of an emitted radiation beam, a control unit for detecting an abnormality of an elevator rope arranged to travel between the at least one source of electromagnetic radiation and the at least one sensor by analyzing measurement data received from the at least one sensor. A method, a computer program product and an elevator system are also disclosed.

Abstract: A method for generating a representation of an elevator rope includes determining a first edge and a second edge of the elevator rope from measurement data obtained from consecutive measurement instances; and generating a representation of the elevator rope by combining the measurement data of the consecutive measurement instances in accordance with the determined first edge of the elevator rope and the determined second edge of the elevator rope. Some aspects relate to a control unit and a computer program product.

Abstract: The invention relates to a belt-shaped rope of an elevator having opposite lateral sides facing in thickness direction of the rope, at least one of the lateral sides being shaped to have elongated wedge-shaped ribs that are disposed adjacent each other in width direction of the rope and extend parallel with the longitudinal direction of the rope, each said wedge-shaped rib having a first flank face and a second flank face that are at an acute angle relative to each other, and the surface material of said flank faces has shore A hardness more than 85 and less than 100. The invention also relates to an elevator arrangement as well as to an elevator, implementing the aforementioned belt-shaped rope.

Abstract: A hoisting device rope has a width larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material, the composite material including non-metallic reinforcing fibers, which include carbon fiber or glass fiber, in a polymer matrix. An elevator includes a drive sheave, an elevator car and a rope system for moving the elevator car by means of the drive sheave. The rope system includes at least one rope that has a width that is larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material. The composite material includes reinforcing fibers in a polymer matrix.

Abstract: A hoisting device rope has a width larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material, the composite material including non-metallic reinforcing fibers, which include carbon fiber or glass fiber, in a polymer matrix. An elevator includes a drive sheave, an elevator car and a rope system for moving the elevator car by means of the drive sheave. The rope system includes at least one rope that has a width that is larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material. The composite material includes reinforcing fibers in a polymer matrix.

Abstract: 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.

Abstract: A method includes transmitting electromagnetic radiation towards a rope with a transmitter, receiving electromagnetic radiation reflected or emitted from the rope with a detector, performing a mathematical transformation of the output signal of the detector with a processing unit for decomposing the output signal into the frequencies that make it up, and determining the wavelengths of the electromagnetic radiation that have been absorbed by at least one substance on the rope and the amount of the absorption of said wavelengths in order to determine the amount and the content of the substance on the rope.

Abstract: The invention relates to a method for inspecting quality and/or condition of an elongated composite member, which is a load bearing member of a rope of a hoisting apparatus, such as an elevator, or a precursor of such a load bearing member, the method comprising providing an elongated composite member; and changing the temperature of said elongated composite member by heating or cooling said elongated composite member via a flank thereof; and scanning said elongated composite member from a lateral side thereof with a thermal imaging device after said changing of the temperature; and creating thermographic images of said elongated composite member.

Abstract: Elevator components can be equipped with an electronic information plate. The electronic information plates are associated with a particular electronic information plate that can store different properties of the associated component. The content of each electronic information plate is read manually or automatically and transmitted to a controller. The controller analyzes the received content and launches a predetermined action if the content indicates a need for maintenance.

Abstract: The invention relates to a belt-shaped rope of an elevator having opposite lateral sides facing in thickness direction of the rope, at least one of the lateral sides being shaped to have elongated ribs that are disposed adjacent each other in width direction of the rope and extend parallel with the longitudinal direction of the rope. Each said rib has a first flank face for contacting a flank face of a rib of a rope wheel, and a second flank face for contacting a flank face of a rib of a rope wheel. Each said first and second flank face is shaped to have an arcuate cross-sectional profile, and said first and second flank face are shaped to arc to such steepness that the angle defined between their tangents is acute, and the surface material of said flank faces has shore A hardness more than 85 and less than 100. The invention also relates to an elevator arrangement as well as to an elevator, implementing the aforementioned belt-shaped rope.

Abstract: The invention relates to a belt-shaped rope of an elevator having opposite lateral sides facing in thickness direction of the rope, at least one of the lateral sides being shaped to have elongated wedge-shaped ribs that are disposed adjacent each other in width direction of the rope and extend parallel with the longitudinal direction of the rope, each said wedge-shaped rib having a first flank face and a second flank face that are at an acute angle relative to each other, and the surface material of said flank faces has shore A hardness more than 85 and less than 100. The invention also relates to an elevator arrangement as well as to an elevator, implementing the aforementioned belt-shaped rope.

Abstract: A car speed monitoring assembly for an elevator includes an elongated flexible member tensioned to extend in a hoistway of the elevator in a longitudinal direction of the hoistway and first and second rollers mounted rotatably on an elevator car and tensioned against a lateral side of the elongated flexible member. Each roller may roll along a surface of the lateral side of the elongated flexible member based on the elevator car moving relative to the elongated flexible member. The car speed monitoring assembly may detect respective rotation speeds of the first roller and the second roller, trigger one or more particular actions when one or both of these rotation speeds exceeds a limit speed, and trigger the one or more particular actions based on the respective rotation speeds deviating from each other. The one or more particular actions include causing movement of the elevator car to be stopped.

Abstract: An elevator includes an elevator car; a counterweight; a drive wheel mounted stationary, and having a rotational axis; first diverting wheel(s), mounted on the elevator car, and having a rotational axis parallel with the rotational axis of the drive wheel; a second and a third diverting wheel mounted on the counterweight radially side by side, each having a rotational axis, which is at an angle of 60 to 90 degrees relative to the rotational axis of the drive wheel; a roping suspending the elevator car and counterweight and including a first belt-like rope and a second belt-like rope, each having a first end and a second end fixed to a stationary rope fixing, and each comprising one or more load bearing members made of fiber-reinforced composite material; wherein the first rope and the second rope are arranged to pass side by side from the fixing of the first end downwards to the elevator car; and to turn side by side under said first diverting wheel(s); and to pass upwards to the drive wheel; and to turn side