Abstract: A wheel chair lift device includes a base, a lift car, and a lift mechanism for raising and lowering the lift car relative to the base. A maximum height system includes a light source, optical sensor, magnetic-backed reflector, and a placement tool for engaging a reference port on the lift car. Operation of the light source and optical sensor are confirmed before the lift car is elevated.

Abstract: In order to be able to increase safety in elevator systems, a connecting device for connecting a transmission device for transmitting information is provided, wherein the transmission device is attached to a measurement tape for determining the position of a cab in an elevator shaft and wherein the connecting device is designed as a guide bracket for guiding and/or supporting the measurement tape, so that the guide bracket at least partially surrounds the measurement tape, and wherein the guide bracket has at least one opening for reading out the marking unit, and wherein the connecting device has two connection contacts for connecting to one of the communication lines and/or supply lines and an interruption device for interrupting one of the communication lines and/or supply lines, wherein the interruption device is situated in such a way that the interruption occurs between the two connection contacts.

Abstract: An elevator apparatus including a position determination apparatus for determining the position of an elevator car inside an elevator shaft, the position determining apparatus including a marking unit for marking a position of the elevator car, and a detection unit for detecting the marking unit, the marking unit being arranged on one of the shaft doors and the detection unit being arranged on the associated car door or vice versa for the purpose of improved installation.

Abstract: A method and control device for monitoring travel movements of an elevator car utilize an electronic control device positioned at the car. Travel movements of the elevator car are travels, speeds or accelerations of the car. At least individual travel movements are subject to redundant detection for the purpose of monitoring. Either the travels or the speeds are redundantly detected and the accelerations singularly detected, or alternatively the accelerations are redundantly detected and the travels or the speeds are singularly detected, or preferably the travels or the speeds and the accelerations are redundantly detected. The electronic control device is preferably arranged at the support rollers of the elevator car.

Abstract: A device for detecting the position of an elevator car (40) by a sensor and evaluation unit (20, 22, 24), accommodated in a sensor housing (10), which can be arranged on the elevator car, is designed for interaction with a strip (14) having a length and/or position coding and which is connected via a cable connection (26) to a switching unit that is accommodated separately from the sensor housing in a switching housing (12). The switching unit has a safety switch (30) and/or an interrupter contact for an emergency function, especially an emergency stop, of the elevator car. A switching device is associated with the position detecting device for inputting and storing a speed threshold value, the safety switch or interrupter contact being activated when said threshold value is reached or exceeded.

Abstract: The invention relates to a safety arrangement of an elevator system and to a method for ensuring safety in an elevator system. The safety arrangement comprises at least one mechanical stopping appliance and the control of the safety arrangement comprises at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car. In the method for ensuring safety in an elevator system at least one mechanical stopping appliance is fitted to the safety arrangement of the elevator system and at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car is set for the control of the safety arrangement.

Abstract: An elevator device for transporting persons and/or objects within an elevator shaft of a three-dimensional formation including at least two levels, in particular a building or the like. The elevator device includes an elevator car, in which the persons and/or objects to be transported can be accommodated, a running framework for mounting and guiding the elevator car, a position determining device for determining the position of the elevator car within the elevator shaft and/or with respect to the running framework. The position determining device includes marking units for marking the position of the elevator car relative to the running framework and the elevator shaft, a detection unit for detecting and/or reading out the marking units and also an evaluation unit for evaluating the measured values of the detection unit. The marking units are formed as carriers of a barcode, in particular a 2-D code, and the detection unit is formed as an image sensor, in particular as a camera.

Abstract: The invention relates to a method and arrangement for monitoring the operating condition of a transport system. In the method a reader device is fitted to the transport system, which reader device is configured to read an identifier that is separate from the reader device and is provided with a readable marking when the identifier is situated within range of the reading signal of the reader device, measuring means are fitted in connection with the reader device for measuring the operation of the reader device, the operation of the reader device is measured in connection with a reading procedure being performed, and also a functional nonconformance of the reader device is determined on the basis of the measurement of the operation of the reader device.

Abstract: An elevator installation includes at least one car door 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: A measuring arrangement for the measurement of the position and/or movement of a rotor of an electric machine, an electric drive including the measuring arrangement, and an elevator system including the electric drive are provided. The measuring arrangement includes a magnetic band whose magnetic property is so implemented that it varies in the longitudinal direction of the band.

Abstract: An elevator installation with an elevator cab in an elevator shaft and a measurement tape for determining the position of the elevator cab within the elevator shaft, which measurement tape is arranged vertically in the elevator shaft and has a code along the measurement tape, and at least one marking element which is attached in the elevator shaft and has a reference marking, and a sensor apparatus which is attached to the elevator cab and comprises an illumination source and a sensor, which form a detection field for detecting the measurement tape and with an evaluation apparatus. The reference marking is arranged such that it can be captured by the detection field and the sensor apparatus is also provided for detecting the reference marking and the evaluation apparatus aligns the position determined by the measurement tape with the reference marking.

Abstract: An elevator associated within a hoistway and having a speed and position detection system is disclosed. The elevator may include an elevator component associated within the hoistway, an optical sensor associated within the hoistway, an object associated within the hoistway in such a manner to be aligned in a path of the optical sensor, and a processor operatively coupled to the optical sensor. The optical sensor may be capable of emitting a signal and receiving a reflected signal of the emitted signal. The object may have surface features that may reflect the signal. The processor may be capable of processing the reflected signal to provide an output indicative of a speed and position of the elevator component.

Abstract: A gate below an elevator car which prevents access to an elevator hoistway. The gate slidably mounts behind a toe guard and retracts upwardly if the bottom of the gate encounters a person, object or the floor of the elevator pit during downward travel of the elevator. The gate latches when fully retracted so that it may be out of the way during maintenance. A microswitch is wired into the emergency stop circuit that engages when the gate is latched. A trip wire defining the bottom edge of the gate is also wired into the emergency stop circuit, so that the elevator will stop its downward travel if it encounters an obstruction. Rubber bumpers on the bottom edge of the gate cushion impact to people or objects who happen to be below the elevator car and are struck by the gate during downward elevator movement.

Abstract: A system for monitoring elevator car travel includes a plurality of bi-stable sensors (12) traveling with an elevator car (10); a plurality of sense elements (20) positioned along a path of the sensors (12); the sense elements (20) causing the sensors (12) to assume one of a first state and a second state; wherein states of the sensors (12) define a zone code (30) identifying a zone corresponding to the elevator car (10) position, the zone code (30) being a gray code.

Abstract: A device and a method for measuring an elevator hoistway, includes at least one or more laser aligners and a measuring element. The measuring element is provided with an essentially long handle for extending the measuring element into the laser beams transmitted by the laser aligners.

Abstract: A measuring arrangement for the measurement of the position and/or movement of a rotor of an electricmachine, an electric drive including the measuring arrangement, and an elevator system including the electric drive are provided. The measuring arrangement includes a magnetic band whose magnetic property is so implemented that it varies in the longitudinal direction of the band.

Abstract: Information equipment arranged in an elevator shaft generates shaft information with respect to movement of an elevator cage in the elevator shaft, wherein a code arranged at a hanging cable and readable by means of a reader provides information for generation of the shaft information. The hanging cable conducts energy and signals to the elevator cage and signals from the elevator cage to an elevator control and at the same time serves as a carrier for the code for generation of the information.

Abstract: An elevator device for transporting persons and/or objects within an elevator shaft of a three-dimensional formation including at least two levels, in particular a building or the like. The elevator device includes an elevator car, in which the persons and/or objects to be transported can be accommodated, a running framework for mounting and guiding the elevator car, a position determining device for determining the position of the elevator car within the elevator shaft and/or with respect to the running framework. The position determining device includes a marking unit for marking the position, a detection unit for detecting and/or reading out the marking unit and also an evaluation unit for evaluating the measured values of the detection unit. The marking unit is formed as a carrier of a barcode, in particular a 2-D code, and the detection unit is formed as an image sensor, in particular as a camera.

Abstract: A floor position detection device of an elevator system includes a first sensor unit having a first Hall sensor and which is provided to detect at least one floor position characteristic, and an evaluation unit which is provided to evaluate the floor position characteristic for generating a floor signal. The sensor unit includes a second Hall sensor and the evaluation unit evaluates at least two floor position characteristics for generating the floor signal.

Abstract: The invention relates to a device and a method for determining the vertical spacing of objects while carrying out positioning tasks with a vertical travel portion.

Abstract: Elevator cabin position detection system comprising an activation device mounted on an elevator car, a sensor stripe mounted on a sidewall of an elevator shaft and control electronics. The activation device, preferably a light emitting device, activates a portion of the sensor stripe which comprises a feed line, a resistor line and sensors positioned between these. The sensors, preferably optical sensors, when activated by the activation device, conduct electricity to create electrical connection between the feed line and resistor line and thus modify the resulting resistance between an end (A) of the resistor line and an end (B) of the feed line. The control electronics determines the exact position of the elevator cabin based on the resulting resistance between the end (A) of the resistor line and the end (B) of the feed line.

Abstract: An elevator system has an elevator car suspended on at least one synchronous belt, a drive driving the belt with a drive pulley in a non-slip manner, a distance measurement device measuring a travel distance of the belt at the drive pulley for determining an elevator car position, a controller actuating the drive based on stop location position values stored in the controller and a determined elevator car position to stop the elevator car at two or more stop locations, at least one position sensor disposed from the drive pulley and signaling the controller when the elevator car passes a reference position, and a compensation device making a correction of the stored stop location position values with a correction factor based on the difference between the elevator car position determined by the distance measurement device and the reference position as the car passes the reference position.

Abstract: An arrangement and a method are provided for determining the position of an elevator car in the elevator hoistway. The arrangement includes a measuring apparatus fitted in connection with the elevator car. The measuring apparatus is arranged to form an electromagnetic radio-frequency measuring signal, for determining the position of the elevator car. The arrangement also includes a position identifier fitted in a selected location in relation to the elevator hoistway. The position identifier is arranged to connect inductively to the electromagnetic radio-frequency measuring signal, and also after it has connected to send a determined pulse pattern using the electromagnetic radio-frequency measuring signal.

Abstract: A load weight measuring device for a multi-stage mast forklift truck has a mast assembly, an oil passage, a flow regulator valve, a pressure sensor, a detecting device, a memory, a selector, and a calculator. The mast assembly has a lift bracket for receiving a load weight, a multi-stage mast unit having masts, and a multi-stage lift cylinder unit having lift cylinders each having an oil chamber for raising the lift bracket along the masts. Hydraulic oil flows in the oil passage. The pressure sensor detects a pressure of hydraulic oil and outputs a pressure signal. The detecting device detects a state which stage of the lift cylinder raises the lift bracket and outputs a detection signal. The memory stores predetermined parameters from which the selector selects the parameter based on the detection signal. The calculator calculates the load weight based on the selected parameter and the pressure signal.

Abstract: A device for surveying an enclosed structure (10) includes a platform (24) configured to longitudinally traverse the structure (10), at least one first distance) sensor (48) connected to the platform (24) and configured to measure a lateral distance between a point on the platform (24) and a wall of the structure (10), at least one second distance sensor (50) connected to the platform (24) and configured to measure a longitudinal distance between a point on the platform (24) and a first end of the structure (10), and a transport machine (22) configured to move the platform (24) substantially longitudinally within the structure (10).

Abstract: A platform includes main transverse beams (“MTBs”), each supported by at least one hoist. It is determined whether a load on any MTB is different from the load on any other MTB by more than a predetermined amount. An MTB which has a load different from the load on any other MTB by more than a predetermined amount is selected and then vertically moved with respect to the other MTBs within a predetermined safety limit to transfer load between the selected MTB and the other MTBs while monitoring the loads on each MTB and the position of the selected MTB as vertical movement of the selected MTB proceeds. The monitored loads and position are compared with the safety limit; and the movement of the selected MTB stopped when either the desired load transfer is completed or the safety limit has been met.

Abstract: A platform includes main transverse beams (“MTBs”), each supported by at least one hoist. It is determined whether a load on any MTB is different from the load on any other MTB by more than a predetermined amount. An MTB which has a load different from the load on any other MTB by more than a predetermined amount is selected and then vertically moved with respect to the other MTBs within a predetermined safety limit to transfer load between the selected MTB and the other MTBs while monitoring the loads on each MTB and the position of the selected MTB as vertical movement of the selected MTB proceeds. The monitored loads and position are compared with the safety limit; and the movement of the selected MTB stopped when either the desired load transfer is completed or the safety limit has been met.

Abstract: Elevator car position information can be determined based at least in part on readings from a sensor attached to the elevator car. The sensor readings provide movement information for the car. Some elevator installations are also configured with additional sensors for calibrating the sensor attached to the elevator car. The disclosed technologies can be used with, for example, an elevator installation that is being modernized.

Abstract: The invention relates to a measuring arrangement, an elevator system and also a monitoring arrangement for measuring the movement of an elevator car. The measuring arrangement includes identifiers disposed at set points in the elevator hoistway, each of which identifiers contains at least one property to be measured, which property to be measured is made to be variable in the direction of movement of the elevator car. The measuring arrangement includes at least one measuring apparatus, fitted in connection with the elevator car and arranged to move along with the elevator car in the elevator hoistway. The measuring apparatus is arranged to separately read the property to be measured of each aforementioned identifier after the measuring apparatus has moved in the elevator hoistway to the reading point individual for the identifier to be read.

Abstract: A measuring arrangement, an electric drive and an elevator system are provided for determining the position and/or movement of the rotor of an electric machine. The measuring arrangement includes a magnetic band whose magnetic property is so implemented that it varies in the longitudinal direction of the band.

Abstract: A device for surveying an enclosed structure (10) includes a platform (24) configured to longitudinally traverse the structure (10), at least one first distance) sensor (48) connected to the platform (24) and configured to measure a lateral distance between a point on the platform (24) and a wall of the structure (10), at least one second distance sensor (50) connected to the platform (24) and configured to measure a longitudinal distance between a point on the platform (24) and a first end of the structure (10), and a transport machine (22) configured to move the platform (24) substantially longitudinally within the structure (10).

Abstract: A platform includes main transverse beams (“MTBs”), each supported by at least one hoist. It is determined whether a load on any MTB is different from the load on any other MTB by more than a predetermined amount. An MTB which has a load different from the load on any other MTB by more than a predetermined amount is selected and then vertically moved with respect to the other MTBs within a predetermined safety limit to transfer load between the selected MTB and the other MTBs while monitoring the loads on each MTB and the position of the selected MTB as vertical movement of the selected MTB proceeds. The monitored loads and position are compared with the safety limit; and the movement of the selected MTB stopped when either the desired load transfer is completed or the safety limit has been met.

Abstract: A code strip has per meter a specific number of grid positions, which are provided in alternating sequence with openings and webs. A sensor can detect, for example, the travel direction of an elevator cage from the alternating sequence of the openings and webs. The code strip can be produced at, for example, the factory with alternating openings and webs per meter and adapted on site to the specific requirements of an elevator installation by breaking off the webs. Through breaking off the webs over a length a door zone, for example, is represented on the code strip.

Abstract: An industrial vehicle having a hybrid system controls a distribution of power generated by an engine and power generated by an electric motor. The vehicle includes an engine for supplying power to one of a running unit and a loading-and-unloading unit; a first motor for supplying power to one of the running unit and the loading-and-unloading unit; a second motor for supplying power to the running unit; a required-power calculating unit for calculating running power, and loading-and-unloading power; a clutch unit for controlling the power transmitted from the engine to the running unit; and a power-distribution calculating unit for selecting a destination to be supplied with power from the engine and the first motor based on the control status of the clutch unit, and for calculating a distribution of power which the engine, the first motor, and the second motor supply based on the calculating running power and loading-and-unloading power.

Abstract: The elevator has a car movable vertically within a shaft between lower and upper end positions and a drive system coupled to a traction system for controlling movement of the car. A limit switch which is open when the car is in a selected distance range from one of the end positions. The limit switch forms part of a power line supplying power to the drive system for controlling movement of the car in a direction towards that end position in an inspection operation. Thus movement of the car is prevented only in that direction when the car is in the selected distance range in an inspection operation.

Abstract: An arrangement and a method are provided for determining the position of an elevator car in the elevator hoistway. The arrangement includes a measuring apparatus fitted in connection with the elevator car. The measuring apparatus is arranged to form an electromagnetic radio-frequency measuring signal, for determining the position of the elevator car. The arrangement also includes a position identifier fitted in a selected location in relation to the elevator hoistway. The position identifier is arranged to connect inductively to the electromagnetic radio-frequency measuring signal, and also after it has connected to send a determined pulse pattern using the electromagnetic radio-frequency measuring signal.

Abstract: An arrangement and a method are provided for determining the position of an elevator car in the elevator hoistway. The arrangement includes a measuring apparatus fitted in connection with the elevator car. The measuring apparatus is arranged to form an electromagnetic radio-frequency measuring signal, for determining the position of the elevator car. The arrangement also includes a position identifier fitted in a selected location in relation to the elevator hoistway. The position identifier is arranged to connect inductively to the electromagnetic radio-frequency measuring signal, and also after it has connected to send a determined pulse pattern using the electromagnetic radio-frequency measuring signal.

Abstract: An elevator system includes at least one elevator car and at least one counterweight, which can be moved in opposite directions from each other on at least one guide track in an elevator shaft by a support apparatus guided over a traction sheave of a drive. At least one monitoring device detects a slackening of the support apparatus, wherein the monitoring device is disposed at a deflection roller for the support apparatus.

Abstract: Provided is an elevator monitoring system capable of preventing the indication of car positions from becoming discontinuous on a monitoring screen in the event of an accident.

Abstract: A hoist positioning system includes an accelerometer attached to a hoist, a control unit for processing signals from the accelerometer and comparing the processed signals with reference data to determine a position of the hoist, a drive system for moving the hoist up and down, and a relay that is switched ON and OFF by a control signal from the control unit. When the relay is switched ON, power is supplied to the drive system from a high-voltage power source and the hoist is driven up or down. When the relay is switched OFF, power from the high-voltage power source to the drive system is cut off and the hoist stops moving up or down.

Abstract: A control apparatus for an elevator has a support device mounted on a car, a detection device for detecting the position of the car, and a control unit for controlling operation of the elevator based on information from the detection device. The support device has a rail holding member, which is displaceable with respect to the car and is guided by a guide rail located in a hoistway in which the car moves. The detection device is located on the rail holding member.

Abstract: An arrangement and a method are provided for determining the position of an elevator car in the elevator hoistway. The arrangement includes a measuring apparatus fitted in connection with the elevator car. The measuring apparatus is arranged to form an electromagnetic radio-frequency measuring signal, for determining the position of the elevator car. The arrangement also includes a position identifier fitted in a selected location in relation to the elevator hoistway. The position identifier is arranged to connect inductively to the electromagnetic radio-frequency measuring signal, and also after it has connected to send a determined pulse pattern using the electromagnetic radio-frequency measuring signal.

Abstract: An elevator system includes a lift cage, which is provided with a belt having markings disposed along the length thereof. A device for detecting at least the position, optionally, also the speed and the acceleration of the elevator cage, which is used to scan the markings, comprises a detector which is secured to the elevator cage and is displaced therewith. The detector is, preferably, arranged in such a manner that it detects the markings in one section of the belt which extend from the underloop of the carrier rollers on the elevator cage directly to a fixed point of the belt.

Abstract: An elevator safety arrangement and a method for implementing safety spaces in an elevator has a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. According to the method of the invention, detectors in the electric safety system are read by an electric safety controller and, when a functional deviation is detected, one or more stopping devices are actuated to bring the elevator system into a safe operating state.

Abstract: Provided is a destination floor indication device of an elevator which is excellent in the viewability of destination floor indications and can rapidly indicate destination floors.

Abstract: A system for detecting the position of an elevator car includes a belt at which the elevator car is suspended and a detector for detecting the position of the belt, wherein the belt has on a first side a toothing in which a gearwheel of the detector mechanically positively engages.

Abstract: Elevator cabin position detection system comprising an activation device mounted on an elevator car, a sensor stripe mounted on a sidewall of an elevator shaft and control electronics. The activation device, preferably a light emitting device, activates a portion of the sensor stripe which comprises a feed line, a resistor line and sensors positioned between these. The sensors, preferably optical sensors, when activated by the activation device, conduct electricity to create electrical connection between the feed line and resistor line and thus modify the resulting resistance between an end (A) of the resistor line and an end (B) of the feed line. The control electronics determines the exact position of the elevator cabin based on the resulting resistance between the end (A) of the resistor line and the end (B) of the feed line.

Abstract: The invention relates to a safety arrangement of an elevator and a method for implementing safety spaces in an elevator shaft. The elevator has an elevator control system, an elevator motor, a power supply circuit of the elevator motor, and at least one mechanical stopping appliance for preventing movement of the elevator car in the elevator shaft. In the method according to the invention information is read with the control unit from the sensors that measure the position of the landing door of the elevator and possibly information is read from the sensors that measure the position of the door of the elevator car. If it is detected that more landing doors than the door of the elevator car are open, the control unit is switched to the person in the elevator shaft mode and information about the person in the elevator shaft mode is sent with the control unit to the elevator control system.

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: A platform includes main transverse beams (“MTBs”), each supported by at least one hoist. It is determined whether a load on any MTB is different from the load on any other MTB by more than a predetermined amount. An MTB which has a load different from the load on any other MTB by more than a predetermined amount is selected and then vertically moved with respect to the other MTBs within a predetermined safety limit to transfer load between the selected MTB and the other MTBs while monitoring the loads on each MTB and the position of the selected MTB as vertical movement of the selected MTB proceeds. The monitored loads and position are compared with the safety limit; and the movement of the selected MTB stopped when either the desired load transfer is completed or the safety limit has been met.