In an active guide roller and an elevator device according to the present invention, one of an actuator movable portion and an actuator fixed portion includes: a yoke, and a pair of magnets, which are configured to generate a magnetic field intersecting a pivot plane of the guide lever, and another one of the actuator movable portion and the actuator fixed portion includes: a bobbin; and a coil. Contact between the coil and the magnet is avoidable by allowing the bobbin and the magnet to be brought into contact with each other or allowing the bobbin and the yoke to be brought into contact with each other when the actuator movable portion is displaced in a direction perpendicular to the pivot plane.

A roller guide for an elevator car includes at least one roller rotatably mounted on an axis. The roller guide further includes a support element for supporting the axis, and at least one braking element for the roller for damping vertical oscillations of the elevator car. The brake element is a magneto-rheological fluid.

A suspension device has at least one brake for braking an elevator car relative to a stationary component of an elevator system, a brake holding assembly holding the brake on the elevator car, and a support means holding assembly holding a support means on the elevator car. The support means connects the elevator car to a counterweight of the elevator system. The brake holding assembly holds the brake against the elevator car such that the brake moves relative to the elevator car in a force direction produced by the brake. The support means holding assembly holds the support means against the elevator car such that the support means moves relative to the elevator car substantially in a force direction produced by the support means. A load measuring device measures an exerted force produced by relative movement of the support means and/or the brake.

A damper unit for an elevator, for the purpose of reducing vertical vibration of a stopping elevator car, has at least one roller that, in an active position, is in contact with a guide rail for the elevator car and can be rotated about an axis of rotation. For damping rotary movements during vertical vibration of the stopping elevator car, the roller is connected to a rotation damper.

The disclosure relates to a lift installation having a lift car which can be moved along a guide rail. The lift installation here comprises at least a first pair of rollers and a second pair of rollers. The guide rail runs between the two rollers of the first pair of rollers and between the two rollers of the second pair of rollers. The lift installation also has an apparatus for subjecting the lift car to a retaining force, wherein there is a horizontal offset between the point at which the retaining force takes effect and the center of gravity of the lift car, and therefore the lift car is subjected to a first torque.

An elevator system may include a guide rail and a car that is movable along the guide rail in a driving direction. A first guide element may be connected to the car. Furthermore, the guide rail may comprise a first guide section that has a first guide groove. The first guide element may engage positively in the first guide groove, and the first guide element may be guided in the first guide groove as the car moves. The elevator system may also include a second guide element that is connected to the car and is disposed adjacent to the first guide element. The second guide element may also engage positively in the first guide groove and be guided in the first guide groove as the car moves.

An elevator car rolling suppression device capable of suppressing rolling of an elevator car includes a drive unit configured to press a guide unit against a guide rail. The device also includes a position detecting unit configured to detect a position of an elevator car within a shaft, a storage unit configured to store the position of the elevator car within the shaft and an acceleration of the elevator car in association with each other. The device also includes a control unit configured to extract the acceleration in the lateral direction of the elevator car detected by the position detecting unit from the storage unit. The control unit also controls the drive unit so as to adjust the pressing force of the guide unit against the guide rail to a pressing force that is derived from at least the extracted acceleration in the lateral direction of the elevator car.

The present invention provides a damper of an elevator car, a control method of the damper, and an elevator system, belonging to the technical field of elevators. The damper of the present invention includes a base, a clamping mechanism mainly including two clamp arm components, a solenoid drive part, and a link transmission component, wherein the link transmission component is configured to be movable in a direction approximately perpendicular to a guide surface and drive at least one of the two clamp arm components connected thereto to move towards a guide rail. The control method of the present invention can enable the damper to work in a disengaged state, a slight contact state or a damping output state.

A method and apparatus for dampening oscillations of an elevator car retains the active control of an elevator system in the presence of displacement. This active control may be maintained via the use of an actuator that tailors Lorentz force relative to the level of displacement along a non-linear continuum.

The invention relates to an elevator having a car and guide rails along which the car is guided along a hoistway between landings of the elevator, the car comprising: a frame, upper and lower guide elements, which are mounted to said frame at a vertical distance from each other, and exactly one elevator cabin with a cabin floor, in which elevator the cabin isin travel direction of the carmovably connected to the frame between an uppermost and a lowermost position. By this means a high travel comfort can be obtained with economic space usage at the top and bottom of the hoistway.