Abstract: An elevator installation with at least one shaft having a plurality of shaft doors is provided. At least two cars disposed one above the other travel up and down in the shaft. Each car has at least one car door. A safety device is provided for blocking the travel of the cars when the shaft doors or car doors are open. The safety device has at least two independent safety circuits, each having at least one shaft door and/or car door associated with it. Travel of at least one car can be blocked by means of the safety circuits.

Abstract: The invention relates to an elevator installation with at least one shaft, in which at least two cars disposed one above the other can be made to travel up and down, the shaft having a plurality of shaft doors and the cars respectively comprising at least one car door, and with a safety device for blocking the travel of the cars when the shaft doors or car doors are open. In order to develop the elevator installation in such a way that its transporting capacity can be increased and the cars hinder one another as little as possible, it is proposed according to the invention that the safety device has at least two independent safety circuits, each having at least one shaft door and/or car door associated with it, it being possible for the travel of at least one car to be blocked by means of the safety circuits. A method for controlling an elevator installation is also proposed.

Abstract: The invention relates to a rope brake for an elevator installation for braking a rope coupled to a car, with a stop that is immovable in the longitudinal direction of the rope and at least one brake shoe, it being possible for the rope to be led through between the stop and the brake shoe, and it being possible for the brake shoe to be moved back and forth between a braking position, pressing the rope against the stop, and a release position, releasing the rope, and with a drive coupled to the brake shoe for releasing the rope. In order to configure the rope brake in such a way that it has a simpler construction and with it the rope can be braked within a short time, it is proposed according to the invention that the drive is formed as a linear drive and the at least one brake shoe can be transferred by means of the linear drive into its release position against the action of a braking force acting on it in the braking position. A method for testing a rope brake of this type is also proposed.

Abstract: The invention relates to a method for controlling an elevator installation with at least one shaft and a number of cars, it being possible to make at least two cars travel separately up and down along a common traveling path and a passenger being able to enter a destination call by means of an input unit disposed outside the shaft and the destination call being allocated to a car in dependence on an allocation assessment. To develop the method in such a way that the transporting capacity can be increased, with the cars which can be made to travel along a common traveling path hindering one another as little as possible, it is proposed according to the invention that, in the case of allocation of the destination call to one of the cars which can be made to travel along the common traveling path, the portion of the traveling path required for serving the destination call is assigned to this car and blocked for the time of the assignment for the other cars.

Abstract: The invention relates to an elevator system with at least one shaft, in which at least two cars can be made to travel along a common traveling path, and also with a shaft information system for determining the positions and speeds of the cars, which is connected to an electrical safety device.

Abstract: The invention relates to a method for controlling an elevator installation with at least one shaft and a number of cars, it being possible to make at least two cars travel separately up and down along a common traveling path and a passenger being able to enter a destination call by means of an input unit disposed outside the shaft and the destination call being allocated to a car in dependence on an allocation assessment. To develop the method in such a way that the transporting capacity can be increased, with the cars which can be made to travel along a common traveling path hindering one another as little as possible, it is proposed according to the invention that, in the case of allocation of the destination call to one of the cars which can be made to travel along the common traveling path, the portion of the traveling path required for serving the destination call is assigned to this car and blocked for the time of the assignment for the other cars.

Abstract: An elevator system is provided for the transport of loads and/or persons in an elevator shaft. At least two elevator cars can be moved in the elevator shaft and are connected to a counterweight. A drive is associated with each car. At least one common track section and, in addition, separate track sections arranged next to one another are associated with at least two cars. The common track section and the separate track sections are arranged in sections along the elevator shaft. The cars can be moved not only in the same direction but also in directions opposite to one another.