Abstract: The invention relates to an electromagnetic brake and a method for making an electomagnetic brake. The electromagnetic brake comprises a frame part, an armature part movably mounted on the frame part and having a magnetic core, one or more spring elements for activating the brake by moving the said armature part forwards, an electromagnet fitted to the frame part and arranged to release the brake by pulling the said armature part backwards by resisting the said one or more spring elements, and a planar, elastically bendable damping plate fitted to be bent when the armature part is moving and, while being bent, to produce a damping force resisting the bending to dampen brake noise.

Abstract: A backup circuit for supplying electricity to an electronic overspeed governor in connection with a malfunction of a main electricity supply is disclosed. The backup circuit includes an energy storage. The backup circuit is configured to disconnect the supply of electricity from the energy storage to the electronic overspeed governor with a delay when the malfunction of the main electricity supply is detected, and when the malfunction of the main electricity supply continues for a predetermined amount of time, restarting the supply of electricity from the energy storage to the electronic overspeed governor.

Abstract: An elevator comprising an elevator car; a plurality of belt-shaped ropes connected to the car, each having a width larger than thickness as measured in transverse direction of the rope; and at least one rope wheel, around which the belt-shaped ropes pass; wherein the rope wheel comprises a plurality of circumferential rope contact areas distributed in axial direction thereof, one of said ropes passing against each circumferential rope contact area, the elevator further comprising a sensing arrangement for sensing displacement of one or more of said ropes, comprising a sensing member for sensing displacement of one or more of said ropes radially outwards from the rope wheel, extending in axial direction of the rope wheel along its surface at a radial distance therefrom, whereby a gap is formed between the sensing member and each rope contact area, the height of the gap being more than thickness of the belt-shaped ropes and less than 2.

Abstract: An electromagnetic brake and a method for manufacturing an electromagnetic brake are disclosed. The electromagnetic brake includes a coil former, a coil, which is fitted on the coil former, and also an electrically connecting part, which is equipped to make an electrically conductive contact between the coil and the power supply cable supplying current to the electromagnetic brake.

Abstract: Elevator, which includes a guide rail line, which includes a plurality of consecutive guide rails, which are supported on the building with guide rail brackets fixed to the building, which guide rail brackets comprise a frame, a mounting base and structure for pressing the guide rail against the mounting base, which guide rail bracket essentially prevents at its point lateral movement of the guide rail in relation to the fixing point of the guide rail bracket and permits longitudinal movement of the guide rail in relation to the fixing point of the guide rail bracket. The aforementioned mounting base is fixed to the frame of the guide rail bracket movably in the longitudinal direction of the guide rail.

Abstract: The invention relates to a method and an arrangement for adjusting a brake. The arrangement comprises: a frame part of the brake; a counterpart to be pressed against the frame part; an elastic damping member for damping the noise of the brake, which damping member is configured to form a damping force resisting contact between the countersurfaces of the frame part and of the counterpart, said damping force increasing when the distance between the countersurfaces decreases; and also an adjustment means, for adjusting the damping force formed by the damping member and resisting contact between the countersurfaces of the frame part and of the counterpart.

Abstract: A brake assembly for an elevator includes a brake, a brake operating device and a first brake wire connected to the brake operating device and to the brake, the brake operating device being configured to release the brake by moving the brake operating device and the first brake wire to a first direction. A second brake wire is connected to the brake operating device and to the brake, and the brake operating device is configured to engage the brake by moving the brake operating device and the second brake wire to a second direction.

Abstract: A damping arrangement for damping the opening noise between the frame part and armature part of a machinery brake of an elevator hoisting machine, the machinery brake being opened with an electromagnet, includes a number of channels machined around a magnetizing coil in the frame part of the machinery brake and channels corresponding to them machined in the armature part, into which channels at least one damping element is fixed by means of fixings. The machinery brake of an elevator hoisting machine includes a frame part, an armature part that is movable with respect to the frame part and is installed at the end of the air gap from the frame part, the armature part being moved by means of an electromagnet that is in the frame part towards the frame part for opening the machinery brake and by means of one or more work springs acting between the frame part and the armature part for closing the machinery brake, and a damping arrangement for damping the opening noise between the frame part and armature part.

Abstract: Diverting pulley arrangement of an elevator, which includes an axle, at least one diverting pulley that rotates while supported on the axle, a faceplate structure, in relation to which and supported by which the diverting pulley is arranged to rotate on the first side of the faceplate structure, which axle is locked so that it does not rotate in relation to the faceplate structure by the aid of a locking element, which locking element is on the second side of the faceplate structure and supported so that it does not move in relation to the faceplate structure. The locking element is placed against the locking surface included in the axle so that the contact point of the locking element and the locking surface of the axle is at least partly visible.

Abstract: The invention relates to a method in rope condition monitoring of an elevator, in which method at least the following steps are performed: electrical resistance between a first point and a second point of elevator suspension and/or transmission ropes is measured first time, a threshold value is determined based on the measurement, the elevator is used for transporting passengers and/or goods, electrical resistance between the first point and the second point of said suspension and/or transmission ropes is measured second time, and results of said second time measurement are compared with said threshold value, and if said second time measurement meets said threshold value, predetermined actions are carried out. The invention also relates to an arrangement in rope condition monitoring of an elevator.

Abstract: The invention relates to a method in rope condition monitoring of an elevator, in which method at least the following steps are performed: electrical resistance between a first point and a second point of elevator suspension and/or transmission ropes is measured first time, a threshold value is determined based on the measurement, the elevator is used for transporting passengers and/or goods, electrical resistance between the first point and the second point of said suspension and/or transmission ropes is measured second time, and results of said second time measurement are compared with said threshold value, and if said second time measurement meets said threshold value, predetermined actions are carried out. The invention also relates to an arrangement in rope condition monitoring of an elevator.

Abstract: The invention relates to a method and an arrangement for adjusting a brake. The arrangement comprises: a frame part of the brake; a counterpart to be pressed against the frame part; an elastic damping member for damping the noise of the brake, which damping member is configured to form a damping force resisting contact between the countersurfaces of the frame part and of the counterpart, said damping force increasing when the distance between the countersurfaces decreases; and also an adjustment means, for adjusting the damping force formed by the damping member and resisting contact between the countersurfaces of the frame part and of the counterpart.

Abstract: The invention relates to an electromagnetic brake and a method for making an electomagnetic brake. The electromagnetic brake comprises a frame part, an armature part movably mounted on the frame part and having a magnetic core, one or more spring elements for activating the brake by moving the said armature part forwards, an electromagnet fitted to the frame part and arranged to release the brake by pulling the said armature part backwards by resisting the said one or more spring elements, and a planar, elastically bendable damping plate fitted to be bent when the armature part is moving and, while being bent, to produce a damping force resisting the bending to dampen brake noise.

Abstract: An electromagnetic brake and a method for manufacturing an electromagnetic brake are disclosed. The electromagnetic brake includes a coil former, a coil, which is fitted on the coil former, and also an electrically connecting part, which is equipped to make an electrically conductive contact between the coil and the power supply cable supplying current to the electromagnetic brake.

Abstract: The invention relates to a backup circuit for electricity supply for ensuring the electricity supply of an electronic overspeed governor in connection with a malfunction of the electricity supply. The backup circuit for electricity supply comprises an energy storage. The backup circuit for electricity supply is configured to disconnect the electricity supply from the energy storage ensuring the electricity supply of the electronic overspeed governor to the overspeed governor when the malfunction of the electricity supply continues.

Abstract: Elevator, which includes a guide rail line, which includes a plurality of consecutive guide rails, which are supported on the building with guide rail brackets fixed to the building, which guide rail brackets comprise a frame, a mounting base and structure for pressing the guide rail against the mounting base, which guide rail bracket essentially prevents at its point lateral movement of the guide rail in relation to the fixing point of the guide rail bracket and permits longitudinal movement of the guide rail in relation to the fixing point of the guide rail bracket. The aforementioned mounting base is fixed to the frame of the guide rail bracket movably in the longitudinal direction of the guide rail.

Abstract: Diverting pulley arrangement, more particularly a diverting pulley arrangement of an elevator, which includes an axle, at least one diverting pulley that rotates while supported on the axle, a faceplate structure, in relation to which and supported by which the diverting pulley is arranged to rotate on the first side of the faceplate structure, which axle is locked so that it does not rotate in relation to the faceplate structure by the aid of a locking element, which locking element is on the second side of the faceplate structure and supported so that it does not move in relation to the faceplate structure. The locking element is placed against the locking surface included in the axle so that the contact point of the locking element and the locking surface of the axle is at least partly visible.

Abstract: A method for arranging the reeving of an elevator is provided, which elevator comprises at least an elevator car provided with a car sling comprising an overhead beam, a traction sheave and hoisting roping that passes over the traction sheave, as well as a counterweight and a plurality of diverting pulleys. At least two diverting pulleys are disposed on the roof of the elevator car such that the centers of rotation of the diverting pulleys are above the bottom surface of the overhead beam of the car sling, and the rims of the diverting pulleys are below the bottom surface of the overhead beam of the car sling.