Abstract: An elevator installation is arranged in a building with at least two elevators, wherein the building is divided into building zones and each elevator has at least one elevator car, each elevator car is independently movable by an associated drive in an associated car zone and each car zone has at least one transfer floor. A first elevator has at least three elevator cars arranged vertically one above the other in a shaft. In addition, at least three car zones are allocated to a building zone.

Abstract: Lift system (10) with a lower lift cage (K1), an upper lift cage (K2), at least one counterweight (12), and support means (TA, TB) for supporting the lower and upper lift cages (K1, K2). The support means (TB) for supporting the lower lift cage (K1) are led downwardly in the lift shaft (11) laterally along the upper lift cage (K2). Drive means for driving the lower and upper lift cages (K1, K2) are present. Arranged at the upper lift cage (K2) is a first incremental transmitter (I1) which interacts with one of the support means (TB) and supplies information about a change in the spacing (D) between the lower and upper lift cages (K1, K2).

Abstract: An elevator installation is arranged in a building with at least two elevators, wherein the building is divided into building zones and each elevator has at least one elevator car, each elevator car is independently movable by an associated drive in an associated car zone and each car zone has at least one transfer floor and at least one further transfer floor. A first elevator has at least three elevator cars, which are arranged vertically one above the other and which comprise a middle and two adjacent elevator cars, wherein the middle elevator car is independently movable in a middle car zone and the two adjacent elevator cars are independently movable in two adjacent car zones. The middle car zone and an adjacent car zone serve at least one common floor. In addition, at least one of these car zones is allocated to two building zones.

Abstract: Evacuation method for a lift with at least three lift bodies which are moved along at least one travel path and are connected together by way of support and traction means, wherein the first and the second lift bodies are suspended 1:1 by means of the support and traction means and the third lift body is suspended 2:1 by means of the support and traction means. The three lift bodies can each be blocked by way of a respective controllable blocking device. If passengers are present in a first one of the three lift bodies a further second or third lift body is blocked. In the case of presence of an imbalance between the weight masses of the two remaining unblocked lift bodies the first lift body is moved to an evacuation storey.

Abstract: An elevator system has two elevator cars arranged one over the other, but that can travel independently of each other. Both elevator cars are suspended on suspension and traction mechanisms and each is coupled to a separate counterweight. Both elevator cars have a lower cable, wherein the two lower cables are tensioned by separate tension devices. The lower cable of the first, lower elevator car is fastened to the first elevator car and the first counterweight, The lower cable of the second, upper elevator car is guided at the second elevator car and at least one of the two lower cable ends thereof is secured by a weighted body secured in place with play and/or free-floating.

Abstract: A method of preventing a collision of two elevator cars of an elevator installation, which cars move substantially independently of one another in a common shaft, and an elevator installation includes a collision protection system that produces a retardation of each moved elevator car by a stopping brake as soon as the effective distance between the elevator cars falls below a critical minimum distance. After retardation of the cars by the stopping brakes, an emergency stop system comes into function. A control system of this emergency stop system ascertains the instantaneous movement state of the elevator cars. With the help of the car brakes, which are associated with the elevator cars, an additional retardation of each moved elevator car is triggered when the movement state thereof fulfils definable emergency stop criteria.

Abstract: An elevator system has a lower elevator car, an upper elevator car and a common counterweight in an elevator shaft. A support device has a first support strand and a second support strand. Each of the elevator cars is connected with the two support strands. In addition, a drive for driving the elevator cars is arranged in the elevator shaft. The drive includes four drive pulleys, wherein a first drive pulley and a second drive pulley are associated with the first support strand and the third drive pulley and the fourth drive pulley are associated with the second support strand.

Abstract: A method of modernizing an elevator installation that comprises a first elevator car movable in a shaft by a first drive includes installing at least one second drive without changing the first drive. In addition, at least one second elevator car is installed in the shaft and connected with the second drive. Moreover, a control unit is installed or configured in such a manner that it controls the first drive and the second drive.

Abstract: An elevator installation with at least one upper elevator car and at least one lower elevator car includes a first electromechanical switching mechanism mounted on the upper car and having a weight fastened at a downwardly extending elongate run, the run being held in a travel setting by the weight force, and a second electromechanical switching mechanism mounted on the lower car vertically below the weight. In the case of undesired approach of the two elevator cars, the weight impinges on the second electromechanical switching mechanism and thereby opens a safety circuit of the lower elevator car. The safety circuit of the upper elevator car is also opened by a diminishing of the weight force.

Abstract: An elevator has at least two elevator cars, which are disposed one above the other in a shaft, which cars are vertically movable and which each have a drive, a counterweight and a traction device, wherein one drive is fixed at a first shaft wall and a second drive is fixed at an opposite second shaft wall and each drive has at least one drive pulley. At least one first deflecting roller is associated with each drive and is positioned the shaft wall that is opposite the drive and above the counterweight associated with the drive. The traction device is led from the counterweight over the deflecting roller to the drive pulley and from there to the elevator car.

Abstract: An elevator system with a car or platform to transport passengers and/or goods as well as with a counterweight, which are arranged as traversable or movable along a travel path, and which are coupled and/or with a drive by a suspension element interrelating their motion. The suspension element is guided and/or driven by a traction sheave and/or a drive shaft and/or a deflecting pulley. The suspension element is sheathed and/or belt-type, with a first layer made of a first plasticizable and/or elastomeric material, containing a first exterior surface, and with at least one tension member—rope-type, tissue-type, or comprising a multitude of partial elements—that is embedded in the first layer of the suspension element. A manufacturing procedure for one of the suspension elements is provided.

Abstract: An elevator car with brake equipment, which is arranged in the region of the elevator car, for holding and braking the same, which brake equipment includes: a brake unit which can co-operate with a brake rail, an actuating device which can produce an actuator force FA, and a connecting linkage which connects the actuating device with the brake unit in force-active manner for transmission of the actuator force FA, wherein the brake unit in unloaded setting is in its open setting and the connecting linkage is a pull cable.

Abstract: A lift car with a brake device which is arranged in the region of the lift car for holding and braking the latter; the brake device includes a brake unit which can interact with a brake rail, an actuating device which can generate an actuator force, and a connector which connects the actuating device to the brake unit in a force-active manner in order to transmit the actuator force, wherein the brake unit is in its open position in the unloaded position.

Abstract: An elevator system has a lower elevator car, an upper elevator car and a counterweight. A first drive drives the lower elevator car and a second drive drives the upper elevator car. Two parallelly extending guide rails lying in the region of a vertical center plane guide the elevator cars. A support device for the elevator cars and the counterweight comprises two separate support strands. The lower elevator car is fixed at two substantially diagonally opposite points of a horizontal plane each at a respective end of one of the support strands. The upper elevator car is similarly fixed at two substantially diagonally opposite points of a horizontal plane each at an end of one of the support strands, wherein the two diagonals intersect.

Abstract: In an elevator system that has an elevator hoistway, a plurality of hoistway doors arranged above each other each with at least one horizontally moveable hoistway door panel, and an elevator car with a car door that has at least one horizontally movable car door panel, fastened to the car door panel is a vertically extending barrier rail. In each of the areas lying in the vertical direction between the hoistway door panels of adjacent hoistway doors two locationally fixed stopping dogs that are vertically spaced from each other are arranged so that in each case one of the stopping dogs limits the opening movement of the barrier rail, and thereby of the car door panel, when the position of the elevator car deviates in the upward direction or in the downward direction by a certain minimum distance from the intended stopping position.

Abstract: An elevator installation has an elevator car and a permanent magnet linear drive system with a stationary part and a movable part, which moves along the stationary part when the permanent magnet linear drive system is controlled in a drive mode. The elevator car is arranged in a rucksack configuration. The stationary part has two inclined interaction surfaces which include an angle between 0° and 180°. The movable part comprises two units which are so arranged in common on a rear side of the elevator car and mechanically positively connected with the elevator car that in the case of drive control each of the two units produces a movement along one of the interaction surfaces in order to thus move the elevator car.

Abstract: An elevator has at least two elevator cars, which are disposed one above the other in a shaft, which cars are vertically movable and which each have a drive, a counterweight and a traction device, wherein one drive is fixed at a first shaft wall and a second drive is fixed at an opposite second shaft wall and each drive has at least one drive pulley. At least one first deflecting roller is associated with each drive and is positioned the shaft wall that is opposite the drive and above the counterweight associated with the drive. The traction device is led from the counterweight over the deflecting roller to the drive pulley and from there to the elevator car.

Abstract: A method of preventing a collision of two elevator cars of an elevator installation, which cars move substantially independently of one another in a common shaft, and an elevator installation includes a collision protection system that produces a retardation of each moved elevator car by a stopping brake as soon as the effective distance between the elevator cars falls below a critical minimum distance. After retardation of the cars by the stopping brakes, an emergency stop system comes into function. A control system of this emergency stop system ascertains the instantaneous movement state of the elevator cars. With the help of the car brakes, which are associated with the elevator cars, an additional retardation of each moved elevator car is triggered when the movement state thereof fulfils definable emergency stop criteria.

Abstract: An elevator installation is arranged in a building with at least two elevators, wherein the building is divided into building zones and each elevator has at least one elevator car, each elevator car is independently movable by an associated drive in an associated car zone and each car zone has at least one transfer floor. A first elevator has at least three elevator cars arranged vertically one above the other in a shaft. In addition, at least three car zones are allocated to a building zone.

Abstract: An elevator installation is arranged in a building with at least two elevators, wherein the building is divided into building zones and each elevator has at least one elevator car, each elevator car is independently movable by an associated drive in an associated car zone and each car zone has at least one transfer floor and at least one further transfer floor. A first elevator has at least three elevator cars, which are arranged vertically one above the other and which comprise a middle and two adjacent elevator cars, wherein the middle elevator car is independently movable in a middle car zone and the two adjacent elevator cars are independently movable in two adjacent car zones. The middle car zone and an adjacent car zone serve at least one common floor. In addition, at least one of these car zones is allocated to two building zones.