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 guide having a base attached to an elevator component, a guide riding along a portion of a rail and a spring biasing the guide in contact with the rail. The guide includes one or more of the following: (i) a guide support member operably associated with the guide for movably supporting the guide so that the guide can move toward and away from a corresponding surface of the rail member wherein the guide support member has a plurality of spring engagement sections configured to vary a system effective spring rate; (ii) a roller including a non-metallic rim molded about a bearing; (iii) two independently adjustable stops and, (iv) an opening adjustment member mounted about a notch in the base to vary the distance between the base and the rail. The opening adjustment member has a width and/or depth greater than a width and/or depth of the notch.

Disclosed is a car mover, configured for autonomously moving an elevator car along a track beam in a hoistway lane, having: a car mover body; a drive wheel operationally connected a lateral side of the car mover body, and configured to rotate about a drive wheel axis; a first guide wheel operationally connected to the lateral side of the car mover body, wherein the first guide wheel is offset from the drive wheel so that, in operation: the first guide wheel engages a lateral sidewall of the track beam when the drive wheel laterally moves on the track beam, to thereby restrict lateral motion of the drive wheel on the track beam.

A system for transferring elevator cars from a first elevator shaft to a second elevator shaft including: a propulsion system configured to move an elevator car through the first elevator shaft and the second elevator shaft; a transfer carriage configured to move the elevator car from the first elevator shaft to the second elevator shaft through a transfer station, the transfer carriage including: an elevator car containment slot to receive the elevator car; and a car retention mechanism configured to secure the elevator car and the propulsion system within the transfer carriage while the transfer carriage moves from the first elevator shaft to the second elevator shaft, wherein the propulsion system is configured to move the elevator car from an elevator system within the first elevator shaft onto the transfer carriage and off the transfer carriage to an elevator system within the second elevator shaft.

A robotic transporter system for elevator cars including: a propulsion system configured to move an elevator car through an elevator shaft; and a robotic transporter configured to move the elevator car within a parking area, the robotic transporter including: an elevator containment slot to receive the elevator car and the propulsion system of the elevator car when the elevator containment slot is aligned with the elevator shaft.

A roller system, a roller brake device and an elevator system. The roller brake device is used for the roller system. The elevator system includes the roller system. The roller system comprises a roller assembly and a roller brake device, the roller brake device includes: a body, the roller brake device is mounted to the roller assembly by the body; an actuation device mounted to the body; and a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position.

An adjustable roller-guide shoe for guiding an elevator car or a counterweight of an elevator installation contains a roller carrier, which can be fastened on the car or the counterweight, a guide roller and a roller spindle, which is arranged in the roller carrier and accommodates the guide roller. The roller spindle is positioned in the roller carrier by an adapter having an installation contour which matches a corresponding accommodating contour of the roller carrier. The adapter is configured to be fixed in different installation positions in relation to the roller carrier, and thus the roller spindle can be placed in different positions in the roller carrier, depending on the installation position of the adapter. It is thus possible for the roller-guide shoe to be operated with different roller diameters or to be adapted to different rail-web dimensions.

An elevator system including: an elevator car configured to travel through an elevator shaft; a first guide beam extending vertically through the elevator shaft, the first guide beam including a first surface and a second surface opposite the first surface; a beam climber system configured to move the elevator car through the elevator shaft, the beam climber system including: a first wheel in contact with the first surface; and a first electric motor configured to rotate the first wheel; a first motor brake mechanically connected to the first electric motor, the first motor brake configured to slow the elevator car; and a brake condition based monitoring system configured to detect when the first motor brake is dragging.

An elevator system including: an elevator car configured to travel through an elevator shaft; a first guide beam extending vertically through the elevator shaft, the first guide beam including a first surface and a second surface opposite the first surface; a beam climber system configured to move the elevator car through the elevator shaft, the beam climber system including: a first wheel in contact with the first surface; and a first electric motor configured to rotate the first wheel; and a controller configured to determine wheel slippage in a low friction area along the first guide beam.

An exemplary vertically moveable elevator system component includes a top portion, a bottom portion and a plurality of vertically oriented side portions between the top and bottom portions. At least one of the side portions includes a roller guide support sheet. A first roller guide roller is supported by the sheet such that the first roller is at least partially disposed on a first side of the sheet and an axis of the first roller is generally parallel with the sheet. Second and third rollers are supported by the sheet such that the second and third rollers are on a second, oppositely facing side of the sheet. An axis of each of the second and third rollers is generally perpendicular to the axis of the first roller. The axis of each of the second and third roller remains in a fixed position relative to the sheet.