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.

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.

Elevator overrun systems having a first body arranged to be fixedly mounted to a portion of an elevator system or elevator shaft, a second body positioned within the first body and moveable from a deployed state to a retracted state relative to the first body, and a limit switch located at a distal end of the second body, the limit switch configured to interact with a component of an elevator system to prevent movement of an elevator car.

Elevator lintel door lock safety devices having a frame mountable to a lintel, a lintel door lock fixed to the frame and having a first lock element rotatable relative to a second lock element, a contact plate fixed to the first lock element and moveable therewith, the contact plate having at least one contact attached thereto, a contact receiver attached to the frame and part of a safety chain, the contact receiver having at least one contact receiver aperture arranged to receive a respective contact of the contact plate, and a blocking element pivotably mounted to the frame wherein a portion of the blocking element is moveable between (i) a first position to prevent the at least one contact from engaging with a respective contact receiver aperture and (ii) a second position that allows the at least one contact to engage with the respective contact receiver aperture.

A hoistway access system for an elevator includes an access switch positioned at a selected landing floor 34 of an elevator and operably connected to a controller 46. A remote controlled lock 48 is located at landing doors of a landing floor providing access to a hoistway pit 36, and is operably connected to the controller. A safety actuation system is operably connected to an elevator car and operably connected to the controller. The controller is configured to command a drive system to drive the elevator car to an upper location when the access switch is activated, to define a selected safety volume in the hoistway defined by the hoistway pit and the elevator car, command engagement of the safety actuation system to stop and hold the elevator car, and command the lock to unlock when the safety actuation system is engaged, thereby allowing access to the hoistway via the landing doors.

An elevator car roof system is provided for monitoring safety of a service access located on an elevator car roof. The elevator car roof system may monitor a change in an opening state of the elevator car roof. Positions of a plurality of roof panels may indicate when the elevator car roof is partially open, fully open or fully closed. The positions of the roof panels may cause at least one sensor of the elevator car roof system to provide a signal to a control system of the elevator. Further, the elevator car roof system may detect if there is an object on the roof. Based on the detected object on the roof, the elevator car roof system may provide at least one signal to enable controlling operation of the elevator.

A system for controlling service access associated with an elevator car includes a divider configured to divide an elevator shaft into a plurality of service access zones; and a controller configured to control a locking state of at least one service access from inside the elevator car to the elevator shaft based on a service access zone of the plurality of service access zones at which the elevator car is located.

An elevator system, including at least one elevator cab, which can be moved at least in the vertical direction in an elevator shaft. A first drive device is provided for moving the at least one elevator cab. A platform device is provided, said platform device including a platform and a second drive device for moving the platform, wherein the platform is movable in the vertical direction and in at least one horizontal direction in the elevator shaft, wherein the second drive device is independent of the first drive device.

An elevator system (1, 1′) includes a portable emergency stop switch (2, 2′), arranged to transmit a signal (4) when activated, a signal receiver (6, 6′), arranged to receive the signal (4, 4′) transmitted by the portable emergency stop switch (2, 2′); and an elevator safety actuator (8, 8′) and an elevator safety brake (10, 10′). In response to receipt of the signal (4, 4′), the signal receiver (6, 6′) is arranged to trigger the elevator safety actuator (8, 8′) to deploy the elevator safety brake (10, 10′).

An elevator system inspection control system and method for switching between normal and inspection operating modes includes a safety chain series circuit having at least one shaft or door contact switch and an operating device in an elevator shaft. The operating device includes a changeover switch for switching between modes. The safety chain is closed to drive an elevator car by establishing a current path between an electrical power source and a motor. When interrupted, the safety chain interrupts the current path thereby stopping the car. The control system includes a manual switch outside the shaft and a control element. The safety chain is closed or interrupted by activating or deactivating the control element while the current path to the motor remains permanently interrupted until the manual switch is actuated when the changeover switch switches the elevator system from the inspection operating mode to the normal operating mode.