Abstract: An exemplary mounting arrangement for components of an elevator system comprises a machine support that is configured to support a load associated with an elevator machine. A support for control electronics that operate the elevator machine is connected to the machine support.

Abstract: A method for wireless destination entry in an elevator dispatching system, the elevator dispatching system including a wireless transmitter/receiver (T/R) includes receiving a request to join a network of the T/R from a wireless device; pushing a web page from the T/R to the wireless device; receiving a service request by the T/R from the wireless device via the web page; communicating the service request from the T/R to a group controller; and dispatching an elevator car by the group controller to service the service request is provided. An elevator dispatching system and a computer program product including a computer readable storage medium contain computer code that, when executed by a computer, implements a method for wireless destination entry in an elevator dispatching system, the elevator dispatching system including a wireless transmitter/receiver, are also provided.

Abstract: A brake (26) for an elevator system (10) and method of using the brake (26) is disclosed. The brake (26) may comprise first and second brake linings (38) configured to be frictionally engageable with a rail (14) of the elevator system (10), a first biasing member (34) configured to urge the first brake lining (38) to engage the rail (14), and a first actuator (30) configured to move the first brake lining (38) to disengage the rail (14) when the first actuator (30) is energized. The brake (26) may be configured to be mounted on an elevator car (16) of the elevator system (10).

Abstract: A brake for machine and method of using the brake is disclosed. The brake may comprise first and second brake linings configured to be frictionally engageable with a rail, a first biasing member configured to urge the first brake lining to engage the rail, and a first actuator configured to move the first brake lining to disengage the rail when the first actuator is energized. The brake may be configured to be mounted on a machine, floor or the like.

Abstract: A pair of elevator cars (10, 11) traveling in the same hoistway have their positions sensed (20-23, 29-32) to provide for each a position signal (35, 37) from which velocity signals (64, 65) are derived; lookup tables (66, 61) of safe stopping distance (B, S) for braking and safeties are formed as a function of all possible combinations of velocity (V(U), V(L)) of said cars. Comparison of safe stopping distances for contemporaneous velocities of said cars with actual distance between said cars provides signals (85, 98, 99) to drop the brakes (49, 50) of one or more of the cars, and provides signals (82) to engage the safeties (18, 18a, 19, 19a) of all cars if the cars become closer or if acceleration detectors (117, 118) determine a car to be in freefall.

Abstract: An elevator system includes an electronic system capable of triggering a machine room brake and an electromagnetic safety trigger with low hysteresis and with minimal power requirements that can be released to engage safeties, when car over-speed and/or over-acceleration is detected. The electromagnetic trigger may be reset automatically and may be released to engage the safeties, during the reset procedure. The system includes a processing system that is configured to decrease response time and to reduce the occurrence of false triggers caused by conditions unrelated to passenger safety, such as passengers jumping inside the elevator car.

Abstract: An elevator system 40 includes an over-acceleration and over-speed protection system capable of triggering a machine room brake and a safety trigger when over-speed or over-acceleration conditions are detected. The system includes a speed detector 42 and an acceleration detector 44. Based upon sensed speed and sensed acceleration, the controller 48 calculates a filtered speed of an elevator mass such as an elevator car 16 or counterweight, and compares the filtered speed to the threshold speed to determine whether an over-speed condition has been reached. The controller 48 activates a machine room brake when an over-speed condition exists, and engages an elevator safety 70A, 70B when it determines that the elevator mass is still in an over-speed condition after the machine room brake has been activated.

Abstract: An exemplary elevator system comprises a machine support (30) including a first portion (32) situated in a generally horizontal position at least partially within a hoistway (24). A second portion (34) is oriented generally perpendicular to the first portion. The second portion has one end supported by a support surface (52) adjacent the hoistway such that a portion of a load of the machine support is transferred to the support surface. One end of the first portion (32) is supported by the second portion (34) and another end of the first portion is supported by a structural member at least partially in the hoistway such that a remainder of the load of the machine support is transferred to the structural member.

Abstract: An exemplary mounting arrangement for an elevator machine comprises a first portion (32) and a second portion (34). The first portion and the second portion are moveable relative to each other between a shipping position and a deployed position in which the first portion and the second portion are generally perpendicular to each other.

Abstract: An electromagnetic safety trigger 46 includes a link 72 kinematically connected to a safety 70A, 70B of an elevator system mass, such as an elevator car or counterweight. An electromagnet 76 mounted on a linear actuator 74 is magnetically coupled to the link 72, and a spring 78 is connected between the link 72 and the elevator mass. The electromagnet 76 can be triggered to release the link 72, which allows the spring 78 to move the link 72 to engage the safety 70A, 70B.

Abstract: A feedback system for a motor of an elevator system is provided. The feedback system may include a first sensor and a processing circuit. The first sensor may be disposed in proximity to a drive component of the elevator system and configured to detect a change in position of the drive component. The processing circuit may be configured to receive a first data signal from the first sensor corresponding to the change in position of the drive component and generate a feedback signal for controlling the motor based on the first data signal.

Abstract: An elevator system includes one or more rails fixed in a hoistway and an elevator car configured to move through the hoistway along the one or more rails. The system includes one or more braking systems having one more braking surfaces secured to the elevator car and frictionally engageable with one or more rails of the elevator system. One or more actuators are operably connected to the one or more braking surfaces configured to urge engagement and/or disengagement of the one or more braking surfaces with the rail to stop and/or hold the elevator car during operation of the elevator system.

Abstract: An exemplary device for use in an elevator system includes at least one friction member that is selectively moveable into a damping position in which the friction member is useful to damp movement of an elevator car associated with the device. A solenoid actuator has an armature that is situated for vertical movement. The armature moves upward when the solenoid is energized to move the friction member into the damping position. The armature mass urges the armature in a downward vertical direction causing the friction member to move out of the damping position when the solenoid is not energized.

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: An elevator system (20) includes multiple elevator cars (22, 32) within a hoistway (26). Counterweights (24, 34) are associated with the respective elevator cars (22, 32) by load bearing members (40, 50). In some examples, different roping ratios are used for the load bearing members (40, 50). In some examples, the lengths of the load bearing members (40, 50) are selected to allow contact between the counterweights (24, 34) within the hoistway (26) and prevent contact between the elevator cars (22, 32). The difference in car and counterweight separation distances is greater than a stroke of a counterweight buffer plus an expected dynamic jump of the elevator cars. A disclosed example includes passages (80) through a portion of at least one of the elevator cars (22) for accommodating the load bearing member (50) of another elevator car (32) located beneath the elevator car (22) with the passages (80).

Abstract: A method for wireless destination entry in an elevator dispatching system, the elevator dispatching system comprising a wireless transmitter/receiver (T/R) includes receiving a request to join a network of the T/R from a wireless device; pushing a web page from the T/R to the wireless device; receiving a service request by the T/R from the wireless device via the web page; communicating the service request from the T/R to a group controller; and dispatching an elevator car by the group controller to service the service request. A elevator dispatching system and a computer program product comprising a computer readable storage medium contain computer code that, when executed by a computer, implements a method for wireless destination entry in an elevator dispatching system, the elevator dispatching system comprising a wireless transmitter/receiver, are also provided.

Abstract: The device for controlling movement of a plurality of elevator cars in a single hoistway includes a door monitor module (46) that facilitates controlling movement of elevator cars (22, 24). The door monitor module (46) is configured to determine when at least one door (30) along a hoistway (26) is open. The door monitor module (46) places a first relay (52) in a selected operative state if a first elevator car (22) is stopped at a landing corresponding to the at least one open door. The door monitor module (46) places a second relay (56) in a selected operative state if a second elevator car (24) is stopped at a landing corresponding to the at least one open door. The door monitor module (46) is also configured to place both relays (52, 56) into the selected operative state if neither of the elevator cars (22, 24) is stopped at a landing corresponding to an open door (30) along a hoistway (26).

Abstract: An exemplary elevator system includes an elevator car situated for movement along at least one guide rail. A braking device is supported for movement with the elevator car. The braking device includes a plurality of magnet members and a plurality of cooperating members. The cooperating members are selectively movable between first and second positions relative to the magnet members. In the first position the elevator car is allowed to move along the guide rail. In the second position the magnet members and the cooperating members cooperate to cause an electromagnetic interaction between the braking device and the guide rail to resist movement of the elevator car along the guide rail.

Abstract: Controlling the movement of elevator cars (22, 24) within a single hoistway (26) prevents the cars from becoming too close while servicing assigned stops. Example control techniques include controlling door operation of at least one of the elevator cars (22, 24) to effectively slow down a follower car or speed up a leader car for increasing a distance between the cars in an area within the hoistway (26) where the cars would otherwise be too close to each other.

Abstract: An elevator system 40 includes an over-acceleration and over-speed protection system capable of triggering a machine room brake and a safety trigger when over-speed or over-acceleration conditions are detected. The system includes a speed detector 42 and an acceleration detector 44. Based upon sensed speed and sensed acceleration, the controller 48 calculates a filtered speed of an elevator mass such as an elevator car 16 or counterweight, and compares the filtered speed to the threshold speed to determine whether an over-speed condition has been reached. The controller 48 activates a machine room brake when an over-speed condition exists, and engages an elevator safety 70A, 70B when it determines that the elevator mass is still in an over-speed condition after the machine room brake has been activated.