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Elevator regulator

A technology of regulators and elevators, applied in the direction of transportation and packaging, elevators, etc., can solve problems such as interference with the availability of elevator cars

Active Publication Date: 2022-03-15
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stopping the car in this manner interferes with the availability of the elevator car to provide service to other passengers

Method used

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  • Elevator regulator
  • Elevator regulator
  • Elevator regulator

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Experimental program
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Embodiment Construction

[0029] Embodiments of the present invention provide elevator regulators that have a more consistent activation rate and are less sensitive to abnormal movement of the elevator car (e.g., oscillations or vibrations caused by passengers bouncing in the elevator car) .

[0030] figure 1 Selected portions of the elevator system 20 are schematically illustrated. Elevator car 22 is placed in motion along guide rail 24 upon operation of machine 26 and machine brake 28, which occurs in a generally known manner. The regulator 30 is associated with the elevator car, or is otherwise positioned within the hoistway, such that the regulator 30 operates based on the speed at which the elevator car 22 is moving. In the event that the elevator speed exceeds a predefined threshold, the regulator 30 initiates application of the safety brake 32 to bring the elevator car 22 to a stop.

[0031] figure 2 An example embodiment of regulator 30 is illustrated. A plurality of throwing weights 34 ,...

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Abstract

The illustrated example elevator governor includes at least one thrower block configured to move a first distance between an initial position corresponding to a zero speed state and an activated position corresponding to an elevator speed reaching a predefined threshold. A biasing member biases at least one thrower toward an initial position. The biasing member is configured to allow the at least one throwing weight to reach the activated position when the elevator speed reaches a predefined threshold. The thrower position member sets the rest position of the at least one thrower in a zero velocity state between the initial position and the activated position. The range of motion of the at least one throw is limited to a second, shorter distance between the rest position and the activated position.

Description

Background technique [0001] Elevator systems, for example, are widely used to carry passengers between floors in buildings. Various types of elevator systems are known. [0002] One of the features of elevator systems is the provision of protection against over speed conditions. Elevator systems typically include an overspeed governor that operates in response to the elevator car moving at a speed above a predetermined threshold speed. In such cases, the modulator instigates brake application by activating a switch or moving a linkage. [0003] Some low-to-midrise, lightweight elevators are constructed to allow for natural or resonant frequencies associated with system rise, moving masses, suspension terminal stiffness, and ropes supporting the elevator car . In some such systems, passengers in the elevator car bounce or jump in a manner that induces vertical oscillations of the elevator car. When these oscillations are at or near the natural frequency of the system, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/04
CPCB66B5/044B66B5/18
Inventor Y.权R.S.杜布
Owner OTIS ELEVATOR CO