Abstract: A monitoring device for a suspension-and-traction apparatus of an elevator system that includes at least one electrically conductive cord contains a measurement apparatus for determining a resulting resistance. The measurement apparatus is connected to the cord with contacting elements contacting opposite ends of cord. Damage to the suspension-and-traction apparatus is detected by a contact point that can register protruding conductive parts of the cord and, in another embodiment, the contacting elements each contain a plurality of mutually differing resistance elements such that each of at least two electrically conductive cords of the suspension-and-traction apparatus is connected to the monitoring device through two of the resistance elements.

Abstract: A system for management of access rights to operating data and/or control data of buildings or building complexes can include a communications release service running on a first server. This release service releases a communication of a user, who is registered with an identity, with the buildings or building complexes filed for him or her in a list when his or her identity corresponds with an identity filed in the list. Also, after release of the communication has taken place by the communications release service, a building authorization service running on a second server releases specific access rights for the user to operating data and/or control data of the building or building complex on the basis of access rights filed in an authorization databank.

Abstract: Using a position detection device, a position of a person in a building area outside of an elevator system is detected. It is determined that the person has not actuated a destination call for the elevator system within a preset period of time. As a result of the determination, a security measure is activated.

Abstract: An elevator installation includes at least one car or floor door and at least one acceleration sensor mounted on the door. The sensor generates measurements that are transmitted wirelessly to a communications module for determining maintenance data.

Abstract: The elevator has, when the elevator car is in its lowermost access level, no elevator shaft pit or one with absolute minimal depth but complies with regulations with respect to protective spaces against the risk of being crushed. The elevator car is movable in an elevator shaft with shaft doors to several access levels. Maintenance operations can be carried out both on the elevator car or from the interior of the elevator car. Access to the region below the elevator car is possible in that at least the lowermost shaft door is permanently locked, whilst all upper shaft doors can have emergency unlocking means. The at least lowermost shaft door is thus permanently locked, with the exception of the state in which the elevator car is in a stopped state, or is stopped, opposite it. The required permanent protective space consists of the entire interior of the elevator car.

Abstract: An elevator car can be moved in service mode by a control unit in the interior of the car. The control unit can be accommodated behind a part, which is removable, pivotable out or displaceable, in the ceiling or light in the car, or behind a wall part, which is removable, pivotable open or displaceable, of the car. The control unit can hang at a cable and be removable from a storage niche to be actuable from any location in the interior of the car. The control unit can be a wireless transmitter which co-operates with a wireless interface at the car. Since car is movable, controlled from the interior, to any desired point of the travel path and can be stopped at any desired point all maintenance operations can be performed from the car.

Abstract: An elevator load receiving apparatus or a compensating weight connected thereto by a suspension device is released from a safety device in a stopping position after downward travel, the load receiving apparatus and the compensating weight being moved by a drive unit including a reversible electric motor and a traction sheave engaging the suspension device. Many safety devices, after stopping must be moved counter to the travelling direction of the load receiving apparatus before stopping in order to release (moved upwards in the case of stopping after downward travel). The safety device is easily released by activating the drive unit for a time (tmax1) or a certain distance (smax) with a predetermined torque (Mmax) counter to the direction of release and subsequently activated as abruptly as possible with the predetermined torque in the direction of release. This method can be used to release the compensating weight from its stopped position.

Abstract: An elevator installation includes at least one elevator car and at least one counterweight, wherein the at least one elevator car is capable of being moved on guide rails in an elevator shaft by a drive with a driving pulley and with a supporting and propulsion apparatus. The at least one counterweight is formed with a hollow body enclosing a filling. In the event of a freefall, the hollow body is destroyed allowing the filling to emerge.

Abstract: A catch device, for example in a safety device of an elevator mechanism, includes at least one first force store element and one second force store element having different force storage rates, and a displacement limit for the first force store element.

Abstract: A handrail (2) for an escalator or a moving sidewalk is designed such that the same consists only of a handle rail (3a) and a fitted tractive means (9a, 9b) and has guiding surfaces (11h-11n) which are complementary to guiding surfaces (5f-5m) on a top side (7) of a balustrade.

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: An elevator installation comprises an elevator cage movable along guide rails and a counterweight movable along guide rails, wherein provided for braking the elevator cage and the counterweight is at least one brake device in which at least one gearwheel is disposed in mechanically positive connection with the guide rail and the gearwheel can be braked by a brake, wherein a first gearwheel is provided, which when the brake is triggered is disposed in mechanically positive connection with the guide rail, and wherein a second gearwheel is provided, which when the brake is activated is disposed in mechanically positive connection with the guide rail.

Abstract: An elevator installation has at least one terminal and at least one call control. The terminal communicates data with respect to an input floor and a destination floor to the call control by way of at least one signal bus. The call control is arranged on a first plug-in card. At least one signal-bus adapter for the signal bus is arranged on a second plug-in card. The first plug-in card and the second plug-in card are directly connected together to form a circuit board.

Abstract: An access-monitoring device of an elevator installation includes at least one video unit, wherein the video unit is connected to a control unit via a communications network. The video unit records at least one image of a defined monitoring space of the access-monitoring device. The video unit filters out a non-changing part of the at least one image and evaluates the remaining image part as to whether there is an object in the monitoring space. In the case of there being an object in the monitoring space, the video unit communicates data to the control unit. The control unit checks, in dependence on the data communicated, the authorization of the object in the monitoring space and determines either the direction of movement or the location of the object within the monitoring space.

Abstract: A supporting belt for a transport device, such as an elevator system, includes at least one stranded wire made of an electrically conducting material for absorbing the forces absorbed by the supporting belt and an electrically insulating jacket that encloses the wire. In order to determine the state of the wire, the wire can be contacted by a contact element securely and reliably and in an exact manner. To achieve this, the jacket is at least partially removed in the area of an opening of the supporting belt and the wire is at least partially exposed in the area of the opening. The wire thus does not include a jacket substantially perpendicularly to a longitudinal axis formed by a center point of a cross-section of the wire. The wire can be contacted by a contact element without the jacket being pierced.

Abstract: A supporting and drive belt including a belt body or sheathing which encloses tensile carriers. The running surface of the belt can be flat and parallel to the belt back or have trapezium-shaped or semicircular ribs and grooves, wherein the profile of a drive pulley or of a deflecting pulley is approximately complementary to the running surface of the belt. One or more tensile carriers are provided for each rib, wherein the tensile carriers are laid or stranded alternately in the “Z” direction and the “S” direction.

Abstract: An elevator installation includes a sensor by which vibrations generated during operation of the elevator installation are detectable and an evaluating circuit, which is connected with the sensor and by which the vibrations detected by the sensor can be evaluated. The detected vibrations can be compared by means of the evaluating circuit with a predeterminable operating value and a predeterminable threshold value.

Abstract: An elevator includes an elevator car that has a horizontally movable car door leaf, a horizontally movable shaft door leaf, a car door locking mechanism encompassing a car door bolt and a bolt stop, and a coupling device that is connected to the car door leaf in order to transmit an opening movement or a closing movement from the car door leaf to the shaft door leaf. The coupling device has at least one movable entraining element which is brought in contact with an opposite element located on the shaft door leaf. A locking action of the car door locking mechanism depends on the cooperation of the coupling device with the opposite element. In each situation, the position of the car door bolt relative to the bolt stop exclusively depends on the position of the entraining element.

Abstract: An escalator with a step belt or a moving walkway with a plate belt, which step belt or plate belt comprises at least one transport chain that is arranged to circulate between a first and second deflecting region of the escalator or moving walkway. Steps or plates are arranged at the transport chain and connected with the transport chain. In addition, at least one blocking device is arranged in stationary position and has at least one blocking arm. The blocking arm can be brought into a release position or into an engagement position, wherein this blocking arm in the engagement position engages in at least one link intermediate space of the transport chain and the blocking arm is fixable in the respective release position or engagement position.

Abstract: An elevator drive for driving and holding an elevator car includes a traction wheel providing a driving and a holding force to the elevator car, a motor driving the traction wheel, a braking arrangement for holding the traction wheel, and a drive shaft connecting the traction wheel, the motor and the braking arrangement together. The braking arrangement includes at least two braking devices arranged, on opposite sides of the traction wheel on the drive shaft. A monitoring logic system ascertains whether an activated one of the braking devices alone can maintain the elevator car at standstill during a brief time the other of the one of the braking devices is released for issuing fault information to an elevator control.