An elevator system includes an elevator car, at least one elevator drive arranged in an elevator shaft and a support strap, wherein the elevator car is arranged in the elevator shaft for movement via the support strap by the elevator drive. A brake system includes a car braking unit associated with the elevator car and a drive braking unit associated with the elevator drive. The car braking unit and the drive braking unit can together be controlled from a common brake control device. The brake system can be used for new elevator system installations and for retrofitting existing elevator systems.

An elevator includes a drive, a car operatively connected to the drive to traverse along a travel path, at least one guide rail positioned along the travel path to guide the car, a safety brake arranged on the car to exert a braking force on the guide rail, and a safety system. The safety system includes a first safety control unit and a second safety control unit that monitor a safety condition of the elevator. The first safety control unit outputs a stop signal to the drive, in particular to a drive brake and/or to a frequency converter of the drive, and the second safety control unit outputs a trigger signal to the safety brake to bring the elevator into a proper safety condition when an impermissible safety condition of the elevator is detected.

An elevator includes a drive, a car operatively connected to the drive to traverse along a travel path, at least one guide rail positioned along the travel path to guide the car, a safety brake arranged on the car to exert a braking force on the guide rail, and a safety system. The safety system includes a first safety control unit and a second safety control unit that monitor a safety condition of the elevator. The first safety control unit outputs a stop signal to the drive, in particular to a drive brake and/or to a frequency converter of the drive, and the second safety control unit outputs a trigger signal to the safety brake to bring the elevator into a proper safety condition when an impermissible safety condition of the elevator is detected.

An elevator includes an elevator car; a counterweight; one or more ropes interconnecting the car and counterweight, one end of each rope being fixed to the counterweight, and each rope comprising one or more electrically conductive load bearing members that extend unbroken throughout the length of the rope embedded in a non-conductive surface material; a monitoring circuit comprising at least two of said electrically conductive load bearing members of the one or more ropes connected in series, and one or more connectors mounted on the counterweight and connecting ends of said at least two electrically conductive load bearing members in series, said one or more connectors comprising a switch that is movable between a conductive and a non-conductive state, whereby the state change of the switch is arranged to change conductivity of the monitoring circuit; a monitoring system connected with the monitoring circuit and arranged to monitor the state of the monitoring circuit; and a counterweight position sensor mounted on the counterweight, and arranged to sense position of the counterweight. The switch and the counterweight position sensor are connected, and the state of the switch is arranged to change in response to position change of the counterweight sensed by the counterweight position sensor. The elevator is arranged to perform one or more predetermined actions in response to a state change of the monitoring circuit.

An elevator includes an elevator car; a counterweight; one or more ropes interconnecting the car and counterweight, one end of each rope being fixed to the counterweight, and each rope comprising one or more electrically conductive load bearing members that extend unbroken throughout the length of the rope embedded in a non-conductive surface material; a monitoring circuit comprising at least two of said electrically conductive load bearing members of the one or more ropes connected in series, and one or more connectors mounted on the counterweight and connecting ends of said at least two electrically conductive load bearing members in series, said one or more connectors comprising a switch that is movable between a conductive and a non-conductive state, whereby the state change of the switch is arranged to change conductivity of the monitoring circuit; a monitoring system connected with the monitoring circuit and arranged to monitor the state of the monitoring circuit; and a counterweight position sensor mounted on the counterweight, and arranged to sense position of the counterweight. The switch and the counterweight position sensor are connected, and the state of the switch is arranged to change in response to position change of the counterweight sensed by the counterweight position sensor. The elevator is arranged to perform one or more predetermined actions in response to a state change of the monitoring circuit.

The utility model relates to a pneumatic brake release apparatus used on an elevator traction machine, which includes an air cabin, an air storage tank, air delivery pipes, air films, a push rod and air control apparatuses, wherein the air films are arranged at two sides in the air cabin, one end of the push rod is connected to the air films, the other end of the push rod penetrates through the outer wall of the air cabin and is connected with the upper end of a locking arm, an intermediate air cabin of the air cabin is provided with an intermediate air inlet end and an intermediate air outlet end, a film-anterior air cabin of the air cabin is provided with a film-anterior air inlet end, the intermediate air inlet end and the film-anterior air inlet end of the air cabin are respectively connected with the air storage tank by virtue of the air delivery pipes, and the intermediate air outlet end is directly communicated with the atmosphere. By means of the technical solution, the air films in the air cabin are pushed by using compressed air to drive the push rod to transfer a thrust force, so that the locking arms are unfolded, and the locking brake and the brake release are implemented in a pneumatic way. Therefore, the problems in the prior art that a great amount of electric energy is consumed and the noise is difficult to eliminate can be solved, no noise is generated during operation, the safety is high, the structure is simple, and the manufacturing cost is greatly reduced.

A smooth braking control method for an elevator, a smooth braking control device for an elevator, and an elevator brake. The elevator is provided with an elevator brake including a fixed part and a moving part, and in a first state, by driving the moving part to move toward an elevator power device so that a friction member in the moving part contacts the elevator power device, the elevator brake provides a braking force to stop an elevator car, and in a second state, by outputting an electromagnetic force from an electromagnetic member in the fixed part, the friction member is disengaged from the contact with the elevator power device.

A smooth braking control method for an elevator, a smooth braking control device for an elevator, and an elevator brake. The elevator is provided with an elevator brake including a fixed part and a moving part, and in a first state, by driving the moving part to move toward an elevator power device so that a friction member in the moving part contacts the elevator power device, the elevator brake provides a braking force to stop an elevator car, and in a second state, by outputting an electromagnetic force from an electromagnetic member in the fixed part, the friction member is disengaged from the contact with the elevator power device.

Disclosed is a ropeless elevator system having a car mover operationally connected to an elevator car, the car mover configured to operate autonomously and move along a hoistway lane, thereby moving the elevator car along the hoistway lane, wherein the car mover is connected to a top or bottom of the elevator car, via a coupling device.

Disclosed is a ropeless elevator system having a car mover operationally connected to an elevator car, the car mover configured to operate autonomously and move along a hoistway lane, thereby moving the elevator car along the hoistway lane, wherein the car mover is connected to a top or bottom of the elevator car, via a coupling device.