A resetting device for resetting an actuator for actuating a safety gear of an elevator includes an actuation spring to be brought into a compressed state by a resetting force, an electric motor for providing the resetting force and a transmission for transmitting the resetting force of the electric motor to the actuation spring. The transmission provides a positive gear ratio.

A traction sheave clamping device for detachably fixing ropes to the traction sheave of a Koepe hoist, having at least one clamp crossbeam, at least two anchoring elements for engaging in wedge-shaped or hook-shaped grooves in the face sides of the traction sheave/cable chuck rim sheets, and stud bolts for connecting the anchoring elements to the clamp crossbeam, wherein the anchoring elements and the traction sheaves have corresponding torque support surfaces extending substantially in the pull direction of the stud bolts, wherein the extension of the torque support surfaces in the pull direction of the stud bolts is a multiple of the distance between the stud bolt center axis and the anchoring point.

A car mounted governor (12) for an elevator system includes an overspeed pulley (38) configured to be secured to an elevator car of an elevator system. The overspeed pulley is configured to detect an overspeed condition of the elevator car via a rate at which a governor cable (42) passes around the overspeed pulley. The car mounted governor further includes a free pulley (40) configured to be secured to the elevator car with the governor cable routed over the free pulley. A tensioning device (64) is located at the free pulley and is operably connected thereto to maintain a select tension on the governor cable.

An illustrative example embodiment of an elevator system includes a cab configured to accommodate at least one passenger or item inside the cab. A motorized module includes a base, a connector supported on the base and at least one drive member supported on the base. The connector is configured to selectively establish a releasable connection between the motorized module and the cab. The drive member is configured to engage a vertical surface, climb along the vertical surface to selectively cause vertical movement of the base, and selectively prevent movement of the base when the drive member remains in a selected position relative to the vertical surface. At least one motor is associated with the drive member to selectively cause the drive member to climb along the vertical surface. The motorized module is vertically movable independent of the cab when the motorized module is released from the cab.

An illustrative example embodiment of a device for controlling movement of an elevator car includes an emergency stopping supervisor, such as a processor and memory associated with the processor. The emergency stopping supervisor is configured to: determine when an indication from an electrical protection device indicates that the elevator car should be stopped, issue a command for the elevator car to move at a reduced speed, monitor continued movement of the elevator car at the reduced speed, and continue to allow the elevator car to move at the reduced speed until a selected condition exists or immediately cause the elevator car to stop if the reduced speed is not within a predetermined range.

An elevator car defining an interior space for accommodating passengers and/or cargo, comprising a support frame positioned above the interior space, a working platform moveable between a stowed position, above the interior space, and an operational position, within the interior space and at least one extendable suspension arrangement arranged to suspend the working platform from the support frame. The extendable suspension arrangement includes a connection plate, a first arm member connected at a first end to the support frame and slidably connected to a first connection point of the connection plate and a second arm member connected at another first end to the working platform and slidably connected to a second connection point of the connection plate.

An elevator alignment tool includes a longitudinal frame having rollers being configured to run along the surface of a guide rail of an elevator construction, which frame includes a bias device for biasing the frame against the guide rail and a connecting part configured to be connected to an elevator car or an installation time platform, which tool further includes a laser mounted to the frame. This alignment tool allows an easy alignment of new guide rails to be installed during elevator installation or an easy verification of the guide rail alignment of a ready built elevator construction.

The invention allows inspection tests for an elevator without additional test weights. An empty elevator car and its counterweight are balanced by filling in weight pieces to the counterweight. 100% load of the elevator car in regard to unbalance is configured by moving unused counterweight pieces inside the elevator car. Inspection tests requiring the 100% load in regard to unbalance are performed. 125% load of the elevator car is simulated with 50% load and 125% speed of the elevator car. Inspection tests requiring the 125% load in regard to unbalance are performed. A final counterweight is configured by moving its weight pieces from the elevator car to the counterweight. Inspection tests requiring the final counterweight are performed.

According to an aspect of the invention there is provided a configuration apparatus for an elevator system. The configuration apparatus comprises a communication interface configured to enable communication with a main safety circuit of the elevator system via a communication channel; at least one memory configured to store safety configuration data of the elevator system; wherein configuration apparatus is configured to provide via the communication interface at least part of the safety configuration data to the main safety circuit in response to a safety configuration data query.

An unlocking device with an actuator releases a safety cover of a maintenance opening for opening. The locking device has a safety circuit for actuating the actuator. The safety circuit includes at least one first switching contact and a second switching contact arranged in series, wherein the actuator in a closed state of the first and the second switching contacts is connected by the safety circuit with a power source, and the first switching contact can be switched by a control unit. One or more of the unlocking device can be used in an elevator system.