Abstract: An elevator system includes at least one drive with at least one drive pulley, an elevator car and at least one counterweight as well as flat-belt-like support for the car and the counterweight. The elevator car and the counterweight have at least one support roller. The flat-belt-like support means together with the drive pulley and the support rollers form at least one 2:1 suspension system for the car and the counterweight. The flat-belt-like support can be a wedge-ribbed belt or a cogged belt.

Abstract: An elevator has a car traveling along guide rails within a hoistway and a main drive propelling the car. A sensor mounted on the car measures a vertical travel parameter of the car, a comparator compares the sensed car travel parameter with a reference value derived from the main drive, and an auxiliary motor mounted on the car exerts a vertical force on at least one of the guide rails in response to an error signal output from the comparator.

Abstract: An elevator installation has at least three vertical elevator shafts arranged adjacent to one another, at least one boarding zone and a plurality of individually movable elevator cars. At least two directly adjacent changeover zones are provided in the region of the boarding zone and enable horizontal displacement of the elevator cars between the elevator shafts.

Abstract: A system for security checking or transport of persons by an elevator installation and to a method of operating this system wherein in a person is authenticated by at least one authentication signal. At least one mobile authentication device carried by the person detects an authentication signal of the person and checks it with at least one person reference. In the case of correspondence of the authentication signal and the person reference, at least one identification code is provided. The identification code is detected by a stationary recognition device and assigned to a predefined travel destination or to an input travel destination input at the recognition device by the person.

Abstract: A method of operating an elevator system with a drum for taking up a suspension device, a drive unit for driving the drum, and a control unit for controlling the drive unit, includes operating the control unit of the drive unit to prescribe a rotational speed that depends on a length of the suspension device that is rolled onto the drum. Also included is an elevator system in which the method can be used.

Abstract: An elevator door system includes a motor rotating a vertical reel, and an elevator door. The door can be formed of a plurality of vertically aligned rigid panels or can be a sheet of material which is rigid or reinforced in the vertical direction or can have any other appropriate form making it suitable for being wound upon and unwound from the reel. The door is mounted to a flexible force transmission member provided along an entire width of the door and interconnected to the reel. Accordingly, the forces generated by the motor for opening and closing the door are substantially transmitted through the transmission member rather than being imparted onto the door itself. Hence, in use the strain on the door is greatly reduced and therefore the quantity of material used for the door and consequently its cost and mass can be reduced without deteriorating performance.

Abstract: A belt end connection and method for fastening a belt end in an elevator installation includes a housing having a wedge pocket for holding the support belt end and a wedge. At least one wedge pocket surface facing the wedge is provided with a roughness that is different from a roughness of another surface of the wedge pocket. Advantageously, a wedge pocket adhesion surface lying closer to a loose run of the support belt is provided with a roughness greater than the roughness of the another surface, or a wedge pocket slide surface lying closer to a supporting run of the support belt is provided with a roughness less than the roughness of the another surface.

Abstract: The invention relates to an escalator with steps or a moving walk with pallets that has a step comb or pallet comb respectively with comb teeth, wherein comb brushes on the step comb or pallet comb are arranged in approximately parallel direction to the comb teeth.

Abstract: An escalator or moving walk has a drive arranged in a reversing area. The drive drives chain wheels that move the step band or pallet band and include a motor, an axial gear, a first hollow shaft and a second hollow shaft. The motor drives a belt to drive a gear input shaft that runs coaxial to the first hollow shaft. Arranged at one end of the gear input shaft is an operating brake; the other end of the gear input shaft is connected to the axial gear. A first flange connects a first chain wheel to a truss. A second chain wheel is arranged at one end of the second hollow shaft; the other end of the second hollow shaft is connected to the housing of the axial gear. A second flange connected to a side plate serves as a torque converter bearing for the axial gear.

Abstract: A self-centering brake for a lift provides for the same braking moment in the case of normal operation and in the case of failure of a brake half. The brake consists of a housing which is U-shaped in cross-section, wherein a limb of the U corresponds with a brake half. The brake halves are of identical construction. An active brake lining and a passive brake lining are provided for each brake half. The active brake lining is loaded by a spring force of a compression spring. In the case of failure of a brake half the passive brake lining takes over the function of the active brake lining.

Abstract: In an elevator installation, an apparatus and a method use a support end connection for fastening a support device to an elevator car, a counterweight and/or a building. The support device has at least one cable or cable strand enclosed by a cable casing and is held in a wedge pocket by a wedge. The cable casing is formed of thermoplastic material or an elastomer and the cable or the cable strand is glued to, fused together with or mechanically connected with the cable casing in the region of the support end connection. A friction force transmitted from the support end connection to the cable casing can then be directly passed on to the load-bearing core of the support device, to the cables or to the cable strands. The tolerable tension force in the support device is increased. The support device is preferably a multiple cable.

Abstract: A passenger transportation system, such as an escalator or moving walk, contains a circulating band, a driving station, and a reversing station. The driving station is arranged in the area of a first end of the passenger transportation system and has a slave control unit. The reversing station in the area of a second end of the passenger transportation system has a master control unit. For the purpose of exchanging data, the master control unit and the slave control unit are connected together by a data bus. The slave control unit has a first printed circuit board on which is mounted a first set of electronic components and which serves to transmit to the master control unit data concerning the functioning of the passenger transportation system. The master control unit has a second printed circuit board on which is mounted a second set of electronic components and which serves to analyze the data and control of the passenger transportation system.

Abstract: A portion of an elevator car electrical system, such as car computer, terminals, communication apparatus, etc., is mounted in an apparatus space integrated into a car roof. The apparatus space is arranged along a car roof edge and utilizes a constructional height required for stiffening the car roof. The portion of the car electrical system is accessible by a moveable cover for service. When closed, the cover forms a standing surface which can be used for servicing in the elevator shaft.

Abstract: An elevator installation with at least one car includes at least one device for determining a position of the car and a method of operating such an elevator installation. The position determining device has a code mark pattern and a sensor device. The code mark pattern is arranged along the length of travel of the car and consists of a multiplicity of code marks. The sensor device is mounted on the car and has sensors contactlessly scanning the code marks. The code marks are arranged in a single line and the sensor device comprises at least two sensor groups which are separated from each other perpendicular to the line of the code marks, which makes reading the code marks possible even if there are lateral displacements between the sensor device and the line of the code marks.

Abstract: An elevator installation is provided that includes an elevator cage, a drive pulley, at least one support means formed as a flat belt, and a drive engine which drives the at least one support means, which carries the elevator cage, by way of the drive pulley. In the elevator installation, the support means has, at least on a running surface facing the drive pulley, several ribs of wedge-shaped or trapezium-shaped cross-section which extend parallel in a longitudinal direction of the support means and further has several tensile carriers oriented in the longitudinal direction of the support means. The tensile carriers are sized so that a total cross-sectional area of all the tensile carriers amounts to 30%-40% of a cross-sectional area of the support means. The tensile carriers may be distributed in a transverse direction of the support means so that exactly two tensile carriers are associated with each of the ribs, the tensile carriers having an outer diameter equal to 35%-40% of a rib spacing (T).

Abstract: An elevator with a 4:1 cable guidance includes a drive unit and a first deflecting roller arranged at a carrier supported at one end on a first car guide rail and a first counterweight guide rail and at the other end on a second counterweight guide rail. The guide rails are connected with the shaft wall by means of yokes, whereby the vertical rail forces are conducted into the shaft pit. A drive bracket arranged at the carrier carries the drive unit and the drive pulley. A roller bracket arranged at the carrier carries the first deflecting roller. In addition, a first cable fixing point and a second cable fixing point for opposite ends of a cable are arranged at the carrier. The second deflecting roller is supported on a second car guide rail.

Abstract: A method for the operation of an elevator installation, wherein the operating parameters for achieving a desired performance are determined by simulation of the operation of the elevator installation, the operating parameter and the desired performance are included in a protocol, the elevator installation is operated with the operating parameter, the actual performance produced by the elevator installation is measured and the actual performance is compared with, the desired performance.

Abstract: A safety closing system for a shaft door panel of an elevator installation brings the shaft door panel into a closed setting in the absence of an opening force. The safety closing system includes a spring which is stressed in the open setting of the shaft door panel and a drive mass which is subject to gravitational force, the spring and mass being coupled by a flexible tension element with the shaft door panel.

Abstract: An elevator has a mechanical linear drive arranged laterally at an elevator shaft head to drive at least one belt that moves a car and a counterweight in the shaft. The belt is fixed in the shaft at opposite ends and extends about a drive wheel of the elevator drive. Deflection rollers of the drive determine the angle of encirclement of the belt on the drive wheel.