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Pulse-free escalator system

An escalator, pulsation-free technology used in escalators, transportation and packaging to solve problems such as unacceptable ride quality

Inactive Publication Date: 2008-04-09
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As part of this experience, the rollers are periodically lifted off the track or joint and subjected to excessive loads that alternately squeeze and stretch, this "polygon effect" vibration can result in an unacceptable ride quality

Method used

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  • Pulse-free escalator system
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Examples

Experimental program
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Embodiment Construction

[0016] As stated above, the present invention relates to an escalator system having pulsation-free turns and / or transitions. The term "pulsation free" is used here to mean that if the link in the straight line moves at a constant rate, the link in the return area also moves at the same constant rate, since no pulsation allows both sides to move at a constant rate. have the same constant rate. The escalator system 10 includes a pair of spaced apart guide rails 12, and a pair of spaced apart linkage assemblies 14 for supporting a plurality of steps (not shown). Each linkage assembly 14 includes a plurality of linkages 16 connected together by pins or the like. Each link 16 has at least one roller 18 for engaging with an associated rail 12 and for following the path formed by the associated rail. A typical guide path 20 for each roller 18 is as figure 1 shown. The guide path 20 includes first and second spaced apart turns 22 and 24 and four transition regions 26 , 28 , 30 and...

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PUM

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Abstract

The present invention relates to a pulse free escalator system having two spaced apart pulse free turnaround sections and at least one pulse-free transition zone and to a method of designing the turnaround sections and the at least one transition zone. The escalator system has a pair of guide tracks and a pair of linkage assemblies, each comprising a plurality of links joined together. Each linkage assembly has a plurality of rollers for supporting the linkage assembly which travel in a respective one of the guide tracks. Each guide track has two spaced apart turnaround portions with each turnaround portion defining a travel path for each roller having a linear entry section, a linear exit section, and a pulse-free section intermediate said two sections.

Description

technical field [0001] The present invention relates to an escalator system with pulsation-free turns and transitions and a method of design thereof. Background technique [0002] The step assemblies of the escalator form a rigid chain of links. The connecting rod is supported by rollers which move around a smooth and closed track. At the top and bottom of the escalator, the track "turns", ie reverses its direction of travel. It is often the case that the speed at which the steps enter the turn is different from the speed at which the steps exit the turn. This phenomenon is experienced as pulsating at a periodic velocity of the connecting rod passing frequency. As part of this experience, the rollers are periodically lifted off the track or joint and subjected to excessive loads that alternately squeeze and stretch, this "polygon effect" vibration can result in an unacceptable ride quality . The same effect can occur to a lesser extent in the transition zone between the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B23/14B66B23/02
CPCB66B23/022
Inventor G·S·科普兰T·P·加兰特R·N·法戈R·M·哈梅尔
Owner OTIS ELEVATOR CO