Aspects of the present invention provide an approach for controlling energy generation by an airflow originating from a moving elevator cabin. Wing pressure pads are positioned outside the elevator cabin extending to walls of the elevator shaft for preventing an airflow in the elevator shaft from above the elevator cabin to an area in the shaft below the elevator cabin. The elevator shaft is pressure-tight, and the elevator shaft comprises, at one end of the elevator shaft, an air conduit in which a first power generator stage comprising a propeller-driven electrical power generator is positioned. The method comprises further intercepting a floor selection for the cabin and disabling the power generators if a floor difference from a current position of the elevator cabin to a target position of the elevator cabin is below a predefined threshold value.

An elevator counterweight signaling system is provided. The elevator counterweight signaling system includes an actuation assembly configured for contact with an elevator counterweight guide rail. A signaling assembly is configured for electrical communication with the actuation assembly and one or more electrical connectors is configured to electrically connect the actuation assembly with the signaling assembly. The signaling assembly is configured to provide visual and/or audio indications of a moving elevator counterweight assembly.

An elevator counterweight signaling system is provided. The elevator counterweight signaling system includes an actuation assembly configured for contact with an elevator counterweight guide rail. A signaling assembly is configured for electrical communication with the actuation assembly and one or more electrical connectors is configured to electrically connect the actuation assembly with the signaling assembly. The signaling assembly is configured to provide visual and/or audio indications of a moving elevator counterweight assembly.

Provided is an elevator shaft dimensions measurement device including: a plurality of 3-D distance image sensors which are arranged on a circumference of the same circle, facing the direction of the center of the circle and inclined at an elevation angle with respect to a horizontal plane, and which output measurement data by capturing an image of a pattern irradiated onto the inner walls of an elevator shaft that are imaging objects; and a computer which integrates the measurement data output from the plurality of 3-D distance image sensors at a plurality of height positions in the elevator shaft, generates first integrated measurement data covering 360 degrees in the horizontal direction, aligns the first integrated measurement data to create second integrated measurement data after the alignment, and calculates the dimensions of the elevator shaft on the basis of the second integrated measurement data after the alignment.

Provided is an elevator shaft dimensions measurement device including: a plurality of 3-D distance image sensors which are arranged on a circumference of the same circle, facing the direction of the center of the circle and inclined at an elevation angle with respect to a horizontal plane, and which output measurement data by capturing an image of a pattern irradiated onto the inner walls of an elevator shaft that are imaging objects; and a computer which integrates the measurement data output from the plurality of 3-D distance image sensors at a plurality of height positions in the elevator shaft, generates first integrated measurement data covering 360 degrees in the horizontal direction, aligns the first integrated measurement data to create second integrated measurement data after the alignment, and calculates the dimensions of the elevator shaft on the basis of the second integrated measurement data after the alignment.

A suspension and transmission device for use with an elevator system comprises one or more strips that provide load carrying, transmission or traction, and load carrying redundancy or safety functions for the elevator system. In one version a single strip comprised of polymer and composite materials provides these functions. In another version multiple strips comprised of polymer and composite materials provide these functions. In another version, a strip comprises a hollow interior portion. In another version one or more strips incorporate materials that can be detected when using the strip to monitor the condition of the one or more strips.

An elevator system sound reducing assembly includes an elevator car moveably disposed in an elevator shaft. Also included is a counterweight moveably disposed in the elevator shaft, the counterweight operatively coupled to and guided along a counterweight frame. Further included is a barrier located at a height of the elevator shaft that corresponds to passage of the elevator car and the counterweight relative to each other, the barrier disposed between the counterweight and the elevator car upon passage of the elevator car and the counterweight.

An elevator system sound reducing assembly includes an elevator car moveably disposed in an elevator shaft. Also included is a counterweight moveably disposed in the elevator shaft, the counterweight operatively coupled to and guided along a counterweight frame. Further included is a barrier located at a height of the elevator shaft that corresponds to passage of the elevator car and the counterweight relative to each other, the barrier disposed between the counterweight and the elevator car upon passage of the elevator car and the counterweight.

A deck device and a method to access a pit ladder are described. An elevator pit deck device includes a platform configured to move between a stored position and an operational position; the platform installable in a channel; the stored position being a folded or retracted configuration; the platform, when in the operational position, extending between a channel opening and a wall of the channel. In some embodiments, the channel is an elevator hoistway, the channel opening connects the elevator hoistway and an elevator landing sill, the wall of the channel is proximate to a pit ladder, and the pit ladder is extendable towards a pit of the elevator.

A deck device and a method to access a pit ladder are described. An elevator pit deck device includes a platform configured to move between a stored position and an operational position; the platform installable in a channel; the stored position being a folded or retracted configuration; the platform, when in the operational position, extending between a channel opening and a wall of the channel. In some embodiments, the channel is an elevator hoistway, the channel opening connects the elevator hoistway and an elevator landing sill, the wall of the channel is proximate to a pit ladder, and the pit ladder is extendable towards a pit of the elevator.