Patent · US Active

Drive belt montoring for passenger conveyors

US11230460B2 · kind B2 · utility

1Cited by

3References

16Claims

0Family size

Assignee

OTIS ELEVATOR COMPANY · US

Inventors

Alexander Turek · Traiskirchen, AT
Thomas Illedits · Neufeld, AT

Key dates

Filing date	Nov 19, 2020
Grant date	Jan 25, 2022
Priority date	—
Expiry date	Nov 19, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01M13/028
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A drive belt monitoring system for a passenger conveyor (10) is provided having a drive belt (30) having at least one cord (36) extending longitudinally within the drive belt (30). The monitoring system (50) includes: a first sensor (52) configured to measure the pretension of the drive belt (30); a second sensor (54) configured to determine a passenger load on the drive belt (30); a third sensor (56) configured to determine the resonance frequency of the drive belt (30); and a controller (60) configured to evaluate a condition of the drive belt (30) based on: the measured pretension of the drive belt (30), the determined passenger load of the drive belt (30), and the determined resonance frequency of the drive belt (30).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.