The invention relates to an elevator arrangement comprising an elevator with an elevator a control system, a safety system and an inspection or maintenance mode, which elevator having an elevator car arranged to run up and down in an elevator shaft along guide rails, and which elevator car is equipped with a roof. The roof of the elevator car is arranged to open outwards from the elevator car in order to form a natural safe space inside the elevator car at least during inspection and maintenance tasks.

Elevator access systems and methods including a key extension having a first portion arranged to engage with a key and a second portion and an access mechanism. The access mechanism includes an extension engagement element arranged to receive and fixedly engage with the second portion of the key extension and an opening element operably connected to the extension engagement element such that operation of the extension engagement element causes operation of the opening element.

The invention relates to an elevator arrangement having an elevator comprising an elevator car arranged to run up and down in an elevator shaft along guide rails, an elevator operating system, a control system, a safety system, and an inspection or maintenance mode. The elevator car comprises a roof, a plurality of car walls and a car door. A working connection from inside the elevator car to the elevator shaft is formed via opening a part of or the whole roof of the elevator car and/or a part of or the whole wall of the elevator car and/or the car door. The safety system is arranged to prevent the elevator car from moving if a weight on the roof of the elevator car exceeds a predetermined threshold value.

The invention relates to an elevator arrangement comprising an elevator with a control system, and an inspection or maintenance mode, which elevator further comprises an elevator car arranged to run up and down in an elevator shaft along its guide rails, and which elevator car is equipped with a roof and a car operating panel. The arrangement comprises actuating means to open the roof of the elevator car, which actuating means are operatively connected to the car operating panel of the elevator.

The invention relates to an elevator arrangement comprising an elevator with an inspection or maintenance mode controlled by a maintenance control unit, which elevator further comprises an elevator car and a counterweight or balance weight, and which elevator car is equipped with a roof. The elevator car comprises at least at one upper corner inside the elevator car a sheltered casing inside which at least a part of the electric appliances of the elevator car is situated, and that the roof is arranged to open outwards from the elevator car in order to form a working connection from inside the elevator car to the elevator shaft, and to open an access to the casing.

The invention relates to an elevator arrangement comprising an elevator with an elevator control system, a safety system and an inspection or maintenance mode, which elevator having an elevator car arranged to run up and down in an elevator shaft along guide rails, and which elevator car is equipped with a roof. The roof of the elevator car is arranged to uncover upper part of the elevator car in order to form a natural safe working space inside the elevator car, and that the arrangement comprises a control mechanism in order to control the position of the roof.

An elevator motion alert system is configured to alert a person of an object moving in at least one hoistway of an elevator system. The elevator motion alert system includes a sensor configured to detect object motion. A transmitter of the elevator motion alert system is carried by the object and is configured to transmit a pressure wave at a pre-defined frequency upon movement of the object. An electronic device of the elevator motion alert system is configured to receive and process the pressure wave for alerting the person of object movement.

A method of controlling movement of an elevator car including determining whether the elevator car is present at a specified landing, determining a door lock state, and entering an access detection mode based in part on whether the elevator car is present at the specified landing and the door lock state.

A mechanical hoistway access control device for an elevator landing door includes a first blocking member mounted on a position on a landing door frame above a landing door, and a second blocking member mounted on a position on a car door frame above a car door. The first blocking member is pivotably attached between an upright position and a first horizontal position extending in the door opening direction about a horizontal shaft. The second blocking member is pivotably attached between an upright position and a second horizontal position about a horizontal shaft, the second horizontal position being where the second blocking member protrudes out to the landing door side to block movement of the first blocking member.

A system is provided. The system includes a sensor located within a work area of a facility. The sensor detects events in the work area and outputs sensor signals in accordance the events detected in the work area. The system includes a processor communicatively coupled to the sensor. The processor processes the sensor signals utilizing one or more pattern recognition systems. The system includes an interface communicatively coupled to the processor. The interface generating outputs based on each state of the one or more pattern recognition systems.