Abstract: A remote triggering device, an overspeed governor assembly and an elevator system are provided. The remote triggering device includes: an actuator seat mounted on a fixed bracket and rotatable between a first position and a second position; an actuator disposed on the actuator seat and having an action end movable between a retracted position and an extended position; and a reset lever extending from the actuator seat; wherein in a case that the centrifugal mechanism of the overspeed governor assembly rotates in a first direction corresponding to ascending of an elevator car, when the action end of the actuator moves to the extended position, the centrifugal mechanism of the overspeed governor assembly contacts the action end of the actuator and drives the actuator seat to rotate from the first position toward the second position, and the reset lever rotates with the actuator seat.

Abstract: A scissor lift with a height sensor system includes a scissors assembly including at least one scissor leg configured to lower and raise a platform, an angle sensor configured to sense the angular position of a pivot pin about which the scissor leg pivots, and a processor configured to calculate a height of the platform from the angular position sensed by the angle sensor. The processor may also be configured to control the lift actuator in response to the height of the platform calculated from the angular position sensed by the angular sensor. The angle sensor may be a magnetic angle sensor configured to sense the angle of a magnetic angular marker attached to the pivot pin.

Abstract: The present invention provides a remote trigger device, a speed limiter assembly having the same and an elevator. The remote trigger device for the speed limiter assembly comprises: an actuator; and a rotating component, the rotating component being capable of rotating around a rotating axis in a rotating plane, the rotating component being actuated by the actuator to rotate from an idle position to a working position. During rotation of the speed limiter assembly, at the idle position, the rotating component is kept separated from an over-speed locking mechanism of the speed limiter assembly, and at the working position, the rotating component toggles a trigger member of the over-speed locking mechanism of the speed limiter assembly to trigger the speed limiter assembly. The structure of the remote trigger device according to the present invention is compact and simple.

Abstract: A fluid sensor including a sensing area configured to receive a fluid. The fluid sensor includes a transducer and a capacitive sensor. The transducer is configured to output an ultrasonic wave through the fluid. The capacitive sensor includes a capacitive plate configured to reflect the ultrasonic wave toward the transducer.

Abstract: A pumping unit for use with a hydraulic elevator system includes a reservoir storing fluid, a first pump, and a second pump. The first pump is coupled with the reservoir and the elevator system to communicate fluid between the reservoir and the elevator system to actuate the elevator system. The second pump is also coupled with the reservoir and the elevator system to communicate fluid between the reservoir and the elevator system to actuate the elevator system. The second pump is selectively actuatable when the first pump is inactivated.

Abstract: A system for managing power in an elevator system, the system including an elevator controller; an elevator car in communication with the controller; a component associated with the elevator car; a power management system in communication with the controller; and a database in communication with the power management system, the database including a power profile; wherein the power management system provides power commands to the elevator controller to enter a power savings mode in response to the power profile, the controller sending a power off signal to the component in response to the power command.

Abstract: An engine control device for a forklift that suppresses an increase in fuel consumption amount and noise by limiting an engine rotation speed when the forklift is driven without the need to increase the engine speed according to the accelerator operation even when the accelerator is depressed hard. Determining means in a controller determines whether all of the following conditions are satisfied: a neutral position of the traveling direction instructing means; a lift raising switch and first, second and third attachment switches are turned off. When all of the above conditions are satisfied, it is determined whether the forklift is driven in any of a plurality of states. An engine control means generates and outputs a control command to obtain the engine speed based on the accelerator pedal depression with the upper limit value of the engine speed set as an upper limit value of the engine speed.

Abstract: The invention relates to a method and an electrical converter of an elevator. In the method a controller of the electrical converter determines a first reactive power produced by a smoothing filter using pre-determined information on impedance of the smoothing filter. The controller may also receive information on a second reactive power from a remote node over a communication channel, the second reactive power being produced to a grid. The controller adds the first reactive power and the second reactive power to yield a total reactive power. The controller requests the electrical converter to make a plurality of compensative connections in the converter matrix to compensate the first reactive power or the total reactive power.

Abstract: A method of wear detection of a coated belt or rope includes connecting a wear detection unit to one or more monitoring strands and/or cords of a coated belt or rope. The coated belt or rope includes one or more baseline strands and/or cords exhibiting a first change in electrical resistance as a function of bending cycles of the belt or rope and one or more monitoring strands and/or cords exhibiting a second change in electrical resistance as a function of bending cycles of the belt or rope, greater than the first change in electrical resistance. An electrical resistance of the one or more monitoring strands and/or cords is measured via the wear detection unit. Using at least the measured electrical resistance of the one or more monitoring strands and/or cords, a wear condition of the belt or rope is determined.

Abstract: A bedplate assembly is provided. The bedplate assembly may include a support member having a mounting surface for receiving a machine, a compartment internally disposed within the support member, and electronics disposed within the compartment.

Abstract: An elevator installation with an elevator unit, which is connected with a power supply mains, is controllable by an elevator control with consideration of first control information based on local requirements of users. The elevator control receives from the power supply mains second control information containing status data for the power supply mains. The first and second control information is evaluated by the elevator control. The elevator control influences operation, which is determined by the first control information, of the elevator installation in dependence on the second control information so as to enable desired operation in terms of energy. A monitoring unit, which determines status data for the power supply mains and provides information for the consumers, is connectible with the power supply mains. The monitoring unit creates second control information for the elevator control in dependence on loading of the power supply mains.

Abstract: The purpose of the present invention is to provide a hoist that has a simple configuration while being capable of withstanding heavy loads. Accordingly, the hoist (1) is provided with: a sheave (10); a left stand (11) and a right stand (12) that rotatably support the sheave (10) at both ends in the axial direction; a rotor (4) installed on the end of the sheave (10) on the left stand (11) side; a stator (5) installed at a position facing the inner diameter side of the rotor (4); a brake disc (30) installed on the same axis as the sheave (10) on the end of the sheave (10) on the right stand (12) side; and a brake device (31) that is installed on the right stand (12), and that applies pressure to the brake disc (30) to provide braking.

Abstract: A transport system includes a motor for moving the transport appliance and a power supply circuit of the motor. The power supply circuit is connected between the motor and a power source that is limited (Plim) in its dimensioning. An energy storage that is limited (Elim) in its capacity is fitted in connection with the power supply circuit of the motor. The control arrangement includes a determination of the charging status (EQ) of the energy storage; a determination of the movement reference of the transport appliance; and a control of the movement of the transport appliance as a response to the determined movement reference of the transport appliance. The movement reference of the transport appliance is determined on the basis of the amount of energy that can be discharged from the energy storage and/or on the basis of the amount of energy that can be charged into the energy storage as well as on the basis of the travel distance of the transport appliance.

Abstract: There is provided an energy management system for managing a current flow in a machine having a lift element being vertically movable by a motor assembly. The energy management system includes a power supplying bus for supplying the motor assembly, a battery source, an energy storage device and an associated controller, and a main controller for controlling the energy-storage-device controller and thus the powering of the motor assembly, while factoring a height and a movement of the lift element. The system generally seeks to manage the energy flow between the battery, motors and supercapacitors so as to maintain the battery current as low as possible by controlling the motor's speed, to maintain the battery power demand constant over time, and to store the regenerated energy into supercapacitors in order to avoid recharging the battery during operation, as well as to maintain the supercapacitors energy level as high as possible.

Abstract: An elevator brake component used in a friction brake of an elevator includes a metal plate that is frictionally engaged with another brake component when the elevator brake is engaged. The plate includes a non-stick finish on the metal plate on a surface of the plate that is frictionally engaged when the elevator brake is engaged by the other brake component.

Abstract: An elevator system includes an elevator car and also a motor drive for moving the elevator car according to a movement profile to be determined for the movement of the elevator car. The loading of the motor drive is arranged to be limited to the limit value for the maximum permitted loading by changing the value of a movement magnitude of the elevator car in the movement profile of the elevator car when the position of the elevator car changes.

Abstract: The invention relates to an elevator system and also to a method for detaching an elevator car and/or a counterweight from a safety gear. In the method torque pulses are produced with the hoisting machine of an elevator, for detaching a gripped stuck elevator car and/or a gripped stuck counterweight.

Abstract: The invention describes an over-speed governor (21) for a stairlift (10) which not only triggers upon the carriage (12) exceeding a pre-determined speed, but also triggers in the event the chair (11) departs from the horizontal by more than a predetermined angle. The speed determining function is preferably electronic and the governor operates in both directions without adaptation. Other aspects are described including a trip speed check facility.

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: Platforms for detecting, identifying and/or designating objects. Platforms according to one embodiment of the invention include an extendable mast connected to a skid via a linkage that allows pivoting of the mast with respect to the skid, and preferably does not permit rotation of the mast; at least two actuators connected to the mast; at least one inclination sensor; at least one detection sensor connected to the mast for detecting presence of an object; and circuitry that receives information from the inclination sensors and plumbs the mast. Coupling and actuator mechanisms are disclosed for connecting the mast to the skid in a manner that allows the mast to be stable for accurate use of the sensors, yet easily and quickly deployable for such use, whether the platform is deployed from the bed of a truck or when the skid is on the ground and the mast is fully extended.

Abstract: Power distribution is managed in an elevator system including an elevator hoist motor (12), a primary power supply (20), and—an energy storage system (32). A predicted usage pattern for the hoist motor is established based on past hoist motor power demand in the elevator system or in similar elevator systems in similar buildings. A target storage state for the energy storage system is then set based on the predicted usage pattern. Power exchanged between the hoist motor, the primary power supply, and the energy storage system is controlled to address power demand of the hoist motor and to maintain the storage state of the energy storage system at about the target storage state.

Abstract: An elevator brake assembly includes a braking fluid for providing a braking force. A first magnet provides a first magnetic field that influences the braking fluid to provide the braking force. The second magnet selectively provides a second magnetic field that controls how the first magnetic field influences the braking fluid to control the braking force.

Abstract: In an elevator device, a drive unit has a drive sheave, a motor for rotating the drive sheave, and a motor driving portion for driving the motor. The motor driving portion is controlled by a control unit. When a car is running, the control unit monitors a load on at least one component within the drive unit, and generates a control command regarding a running speed of the car in accordance with a state of the load, and outputs the control command to the motor driving portion.

Abstract: The invention relates to an arrangement and a method for limiting the input power of a power supply appliance (1) fitted between a power source (2) and a load (3). The arrangement according to the invention comprises a power supply appliance (1) fitted between a power source (2) and the load to be supplied (3), which power supply appliance (1) is fitted to limit its input power on the basis of the status of the aforementioned power source (2).

Abstract: A traveling operation detecting portion detects traveling operation and non-traveling operation selectively. The traveling operation corresponds to operator operation that involves traveling of an industrial vehicle. The non-traveling operation corresponds to operator operation that does not involve the traveling of the industrial vehicle. An upper setting portion selectively sets a first engine speed upper limit and a second engine speed upper limit, which are different from each other, as an upper limit of an acceptable speed range of an engine in correspondence with a detection result of the traveling operation detecting portion. Thus, maximum advantage of the performance of the engine is ensured in correspondence with operation of the industrial vehicle.

Abstract: A height control mechanism for a lift device includes an elongated rail and an actuator slidingly mounted thereto. The actuator is biased toward a first end of the rail, and a proximity sensor is mounted proximate the second end of the rail. A cable pulls the actuator toward the second end of the rail as the lift device is elevated. When the proximity sensor detects the presence of the actuator, a signal is generated to halt further elevation. The position of the proximity sensor along the rail can be adjusted to set the maximum height of the lift device. A second proximity sensor, responsive to the presence of the actuator, can also be secured to the rail to generate a signal indicating that the lift device has been elevated off of the ground by a short distance.

Abstract: An elevator may include a hoisting machine, a set of hoisting ropes, a traction sheave, an elevator car, elevator car guide rails, and a brake. The hoisting machine may engage the set of hoisting ropes via the traction sheave in order to move the elevator car along the elevator car guide rails. The brake may be configured to affect rotational movement of the traction sheave. The brake may include a brake shoe and a braking surface. In an emergency braking situation in which the elevator car is moving upward, the brake shoe may be configured to move in a direction of rotation of the braking surface. An elevator brake may include a brake frame, a brake plate, a wedge piece, a brake shoe, at least one spring element, and at least one electromagnet.

Abstract: A load bearing assembly (30) of an elevator system (20) includes a plurality of load bearing members (34) that each have a selected strength. The number of load bearing members (34) and their associated strengths provide an initial factor of safety for the load bearing assembly (30). The initial factor of safety is selected based upon a relationship between a determined desired life of the load bearing assembly (30) and a desired retirement strength of the load bearing assembly (30) at the end of the desired life.

Abstract: The invention relates to an elevator car which is suitable for elevators in which all of the elements which are to be maintained and checked are arranged outside the elevator car, opposite only one side of the elevator car. Said elevator car comprises, on said side, one part (3) that is arranged more than 85 cm above the elevator base (1) on the elevator wall (2) and that can be removed from inside the elevator. Said part (3) is as least 95 cm high and, after being removed, can rest vertically on the base of the elevator (1), against said elevator wall (2), in order to form a balustrade (4). At least one spacer (5) is arranged between said removable part (3) and the lower part (6) of the elevator wall (2) so that the distance from the inner side of the side wall part (3) that is placed on the base (1), facing the elevator, to the elements (7, 8) of the elevator drive moving past the travelling elevator car is at least 10 cm.

Abstract: An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.

Abstract: An elevator in which a driving apparatus, a traction sheave, and a counterweight-side rope hitching portion are arranged above one rail of the right and left cage-side guide rails, while a cage-side rope hitching portion and a speed governor are arranged above the other rail of the right and left cage-side guide rails. Since a control panel is arranged along a rear inner wall surface of the machine room, a large operation space can be secured in a center part of the floor of the machine room. Further, since a machine beam can be extended at full length in the back and forth direction in the machine room, no additional building-side receiving beam is needed.

Abstract: The present invention discloses an arrangement and a method for controlling the power supply of the load of an elevator system. The arrangement comprises at least a monitoring unit (40) and at least one controllable power source (41), which controllable power source (41) is fitted between the load (2, 12, 13) of the elevator system and the monitoring unit (40) such that the power supply of the load (2, 12, 13) of the elevator system can be controlled by means of a control signal transmitted to the controllable power source (41) by the monitoring unit (40). The monitoring unit (40) according to the invention contains at least one input for determining the status of at least one safety switch (11) of the elevator system. On the basis of the status of the safety switch a control signal (47) either comprised of pulses or in a static state is sent with the monitoring unit (40) to at least one controllable power source (41).

Abstract: In a goods presentation arrangement with a base part (15) that can be placed on the ground by means of legs (14) and features a lifting device (16) with a lifting bottom (33) that can be raised with the aid of lifting means and carries the goods and also features a control device (40) that is assigned to the lifting device (16) and serves for controlling the lifting means, the control device (40) forms part of an exchangeable plug-in module (31) that can be inserted into a receptacle shaft (30) on the base part (15) and is arranged above the legs (14).

Abstract: In a method for monitoring a stationary condition of a drive device, a monitoring device provides the drive device with a temporally varying monitoring signal which, when a sensor device connected to the drive device functions properly, modulates a sensor output signal of the sensor device in accordance with the monitoring input signal. The monitoring device receives the sensor signal and monitors it for the presence of a corresponding signal component. In the absence of such a signal component, the monitoring device controls a safety device which converts the drive device into a safe state. When the drive device is controlled by means of at least two phase-shifted current regulators, it is possible for the monitoring device to monitor an output signal of at least one of the current regulators for constancy and to control the safety device when the output signal of the at least one current regulator changes.

Abstract: A drive, a method of operating the drive and an elevator operated by the drive for the movement of persons or goods by at least one car utilize a linear motor. The drive includes at least one linear motor with a secondary part positioned between a first primary part and a second primary part. The drive also includes at least one compensation device that acts by a compensating normal force against an attractive normal force between each of the primary parts and the secondary part.

Abstract: The machine room according to the invention with a flat rope or thin rope drive machine is, characterized in that the elevator controller device (19) is placed near the machine frame (17) equipped with the return pulleys and is higher than the floor (11) of the machine room by at least the same height as that of the machine frame (17), and in that a work platform (29) is arranged in front of the controller device (19), over or on the machine frame (17), at least on part of its upper part, so as to allow operator access to the controller device (19) from said platform (29)

Abstract: An elevator monitoring unit and a procedure for maintenance of an elevator monitoring unit include arranging the elevator monitoring unit on at least one door post element which is integrated into the door post, and the door post element is parallel-shifted, to a large extent horizontally, for the purpose of maintenance, repair and diagnostics or is tiltable around a horizontal axis.

Abstract: An elevator installation includes a car and with a counterweight in an elevator shaft, the car and the counterweight being guided by two guide rails. The elevator shaft is bounded by shaft walls and shaft doors, which define a cross-section of the elevator installation. The invention the cross-section of the elevator installation is constructed in such a manner that it substantially corresponds with a sum of the cross-sectional area of the car, the cross-sectional area of the counterweight and the safety areas between the car and the wall, the counterweight and the wall, as well as the counterweight and the car. The cross-sectional area of the car is accordingly maximized and a transport area available for transport of persons or goods is correspondingly enlarged.

Abstract: An elevator installation includes an elevator car located in a hoistway and having a floor, and a rear wall extending upward from the floor. A counterweight is located in the hoistway adjacent to the rear wall of the elevator car. An underslung sheave assembly is located generally below the floor and preferably forms a V-shaped configuration that operatively engages the elevator car. A drive machine is mounted in the upper portion of the hoistway, and a drive sheave operatively engages the drive machine and is located above the counterweight, with the drive sheave having a front edge. A deflector sheave is also mounted in the upper part of the hoistway generally below the drive sheave and has a rear edge that vertically overlaps with the front edge of the drive sheave.

Abstract: A dampening device for a compensating cable operably engaged with an elevator car is provided, wherein the compensating cable includes two linear portions connected by an arcuate portion. A first guide including at least one roller member is disposed within the arcuate portion and is configured to dampen oscillation of the compensating cable. At least one sensor device is disposed within the arcuate portion and is capable of operably engaging at least one of the compensating cable and the at least one roller member to sense an entanglement condition of the compensating cable. In some instances, at least one sensor device is disposed outside the arcuate portion, in addition to or instead of the at least one sensor within the arcuate portion, and capable of operably engaging the compensating cable to sense a suspension rope stretch condition. An associated system and method are also provided.

Abstract: An elevator shaft door frame incorporates a control arrangement for an elevator installation including a control unit. The control unit is fixed in a chamber of a frame element of the door frame. The chamber communicates with an outside opening in the door frame, which opens at a floor, and is closed with a cover. The cover can be moved from the closed position by demounting to a service position in which access to the chamber is free. In addition, the door frame has an inside opening to the chamber which is accessible from the elevator shaft.

Abstract: A secondary part of a linear motor, for use in an elevator installation, includes a frame having a plurality of free spaces formed therein, each of the free spaces being surrounded by an inner surface of the frame, at least one magnet positioned in an associated one of each of the free spaces, each magnet having at least one end face spaced from the inner surface, and an adhesive material filling a space between the end surface and the inner surface wherein the magnet is selectively positionable in the associated free space prior to gluing of the magnet to the frame by the adhesive material. The secondary part can be used in a linear motor having: a first primary part, a further part being one of a secondary primary part and an iron element, and the secondary part disposed between the first primary part and the further part.

Abstract: An improved hoistway access detection system including three safety chains, one for monitoring door position on the even numbered floors, one for monitoring door position on the odd numbered floors, and one for monitoring the position of the pit door, wherein an elevator car is slowly moved to the alternate floor upon detection and subsequent closure of an open pit door and any landing door.

Abstract: Load cells 35, 56 on antirotation dowel pins 28a or load mounts 49 indicate brake reaction forces in the disk brake 8, 8a of an elevator. Vertical load cells 72, 73 on bending load cell 80 indicate vertical brake reaction loads on a rail 60. A table indicating the load of an empty car at each of the landings served by the car permits subtracting load components relating to ropes, chains and cables to provide a live load indication prior to brake release; this may be used to determine if the load exceeds the maximum permissible load for the car.

Abstract: A hydraulic elevator system having a configuration without a machineroom is disclosed. The hydraulic elevator system includes a valve assembly that is separated and remotely located from the pump and fluid tank. This arrangement permits the valve assembly and an electronic controller to be located in a cabinet outside of the hoistway, and the other hydraulic components, such as a tank and pump, to be located in the hoistway.

Abstract: An elevator in which an elevator-car and a counter weight are hung like a draw well. The elevator includes a receiving unit for receiving an electric power from a feeding unit provided in a hoistway, an inverter for converting the received electric power into ac power, a motor connected to an ac side of the inverter, for driving the counter weight in up and down directions, a sensor for detecting a position of a receiving unit, and a control unit for controlling an inverter on the basis of the position detected by the position sensor. The counter weight has the receiving means, the inverter, and the motor.

Abstract: Apparatus for restricting motion of an elevator car includes bars or other stiff, elongated members, which are extended outwardly from opposing ends of the elevator car, when the car is positioned in a specified zone of vertical displacement, above the lower edge thereof The displacement zone may be on the order of twelve inches. An elevator control, such as an inspection bank mounted on top of the elevator car, is then operated to move the elevator car slightly downward, to the lower edge of the displacement zone, whereupon the elongated members are brought into solid contact with respective complementary supporting members, joined to opposing elevator guide rails. As the elongated members are extended, a switching arrangement, electrically coupled to the control, is simultaneously actuated to prevent movement of the elevator car above the displacement zone while the elongated members are in their extended mode.

Abstract: A method and apparatus is provided whereby several operations are simultaneously performed when transferring an object to a desired destination by controlling the output of a microcomputer using an elevator system. The method includes the steps of: vertically transferring a vertical transfer device to a predetermined position of the object according to a predetermined first control signal output from the microcomputer; starting to horizontally transfer a horizontal transfer device to the position of the object according to a predetermined second control signal output from the microcomputer and completing the operation of the horizontal transfer device according to a first external control signal; and starting to insert or withdraw the object into or from the destination according to a third control signal output from the microcomputer and completing the operation for inserting or withdrawing the object into or from the destination according to a second external control signal.

Abstract: The overspeed governor is provided with a switch to disable the operation of the elevator motor. The apparatus includes a controllable actuator which resets the switch into a state enabling the operation of the elevator motor. The actuator is preferably a geared d.c. motor.

Abstract: An elevator includes a cab supported and guided by guide rails for travel along the guide rails. Emergency stop devices for stopping the travel of the cab are fixed to the cab. Mounted on the cab is a governor for actuating the stop devices when the traveling speed of the cab exceeds a predetermined speed. The governor includes a roller mounted on the cab and in rolling contact with one of the guide rails so that the roller rolls on the guide rail in interlocking engagement upon travel of the cab. A governor pulley is rotatably mounted on the cab and connected to the roller through a belt so as to rotate in interlocking cooperation with the roller. A safety Link mechanism is mounted on the cab and actuates the stop devices when the rotating speed of the governor pulley exceeds a predetermined speed.