摘要:
A structural system for elevator assemblies includes a horizontal compression member positioned near the top of the elevator hoistway for reacting to inwardly directed tension loads and moment forces applied to the hoistway wall and connection components resulting from the elevator vertical load. The horizontal compression member includes a rigid member positioned in a compression state between mounting structures for elevator ropes and elevator machine components such that the compression member reacts and counters inwardly directed horizontal forces and resultant moment forces caused by a centralized, downward vertical load.
摘要:
A roller guide assembly for an elevator system includes a plurality of rollers and a damping subassembly. The damping subassembly includes a plurality of dampers and a sound isolation mechanism. The sound isolation mechanism interconnects the dampers and provides sound isolation between the rollers and the elevator car. In a particular embodiment, the sound isolation mechanism includes a friction bar that interconnects the rollers and dampers.
摘要:
An elevator system includes an elevator car with a plurality of roller guide assemblies attached thereto. The roller guide assemblies guide the elevator car vertically within a hoistway along a plurality of guide rails. Each roller guide assembly includes a friction damping subassembly to minimize vibration and lateral movement of the elevator car. The friction damping subassembly includes a grounding bar and a friction damper attaching onto a shaft of each roller in the roller guide assembly. The friction damping subassembly dissipates energy and improves the ride quality of the elevator car.
摘要:
An elevator car door system for opening and closing elevator car doors in an elevator car includes a high performance linear induction motor having a pair of movable motor primaries, each attached to a door hanger for each door, and a stationary motor secondary attached to a header bracket which is secured to the elevator car. Each motor primary includes a primary winding and a backiron spaced apart by a plurality of spacers that establish a magnetic gap therebetween. The motor secondary fits between the primary winding and the backiron as the moving motor primaries travel across the motor secondary, generating thrust.
摘要:
A pretensioning system for a relating cable synchronizing movement of elevator car doors includes a compression spring and a spacer disposed on one end of the relating cable. The compression spring is compressed to the length of the spacer disposed internally to the spring to calibrate tension in the relating cable so than a no-slip condition is ensured.
摘要:
A pitless elevator system removes a car buffer and machine, and other components where so equipped from under the elevator car such that the elevator car can be operated to a clearance between it and a floor of a hoistway of about three inches. The machine may be mounted on board the car or may be located elsewhere and the car buffer located in normal side clearance space. The system further provides a retractable toe guard to allow the car to bottom at the indicated distance from the floor. The system facilitates retrofit applications of elevators without the prior art drawback of digging a pit.
摘要:
A pitless elevator system removes a car buffer and machine, and other components where so equipped from under the elevator car such that the elevator car can be operated to a clearance between it and a floor of a hoistway of about three inches. The machine may be mounted on board the car or may be located elsewhere and the car buffer located in normal side clearance space. The system further provides a retractable toe guard to allow the car to bottom at the indicated distance from the floor. The system facilitates retrofit applications of elevators without the prior art drawback of digging a pit.
摘要:
A control or detection arrangement for escalators, moving walks and the like includes a detector, an encoder unit connected to the detector, a wireless transmitter connected to the encoder unit, a wireless receiver, a decoder unit connected to the wireless receiver, and a microprocessor connected to the decoder unit. When an unsafe condition is detected by the detector, the encoder unit generates a trigger signal having at least one unique identifier for the detector. When received, the signal is passed by the decoder to the microprocessor which causes generation of a command signal to, for example, stop motion of the escalator. Alternatively, the inventive arrangement operates according to continuous or periodic transmission modes, which permit the arrangement to monitor operability of the detector, encoder unit, transmitter, receiver and the decoder unit.
摘要:
Escalator steps are attached to their step axles by means of C-shaped clamps which are pivotally mounted on the steps and rotatable thereon to clamping positions where they embrace and clamp the step axles to the steps. One end of the clamp is then bolted to the step so that the clamp pivot pin and bolt will secure the clamps against the step axles. A cam profile is formed on a finger on the clamp, which cam profile guides the step axles into engagement with the step and clamp. A wrench-guiding tube is fixed to the step above the clamp bolt to hold the latter on the step and to ensure engagement between the bolt and an Allen wrench or other tool inserted through the step tread to bolt the clamp in place.
摘要:
The entrance to an elevator cab is provided with wedge gaskets both above and below the cab door opening. The upper gasket is mounted on the door opening header, and the lower gasket is mounted in the door sill. Gasket-engaging brackets are mounted on the top and bottom of each door to snugly engage the gaskets when the cab doors are closed. The closed cab is substantially sealed against penetration by hoistway air so as to provide a quieter smoother ride, especially at high operating speeds. The seal is not established until the doors are completely closed.