Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – Moving hand-support structure
Patent
1994-05-12
1995-06-27
Dayoan, D. Glenn
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
Moving hand-support structure
198835, B66B 2304
Patent
active
054272211
ABSTRACT:
The present invention is an improved escalator handrail drive system. The system includes a drive wheel with an uphill and downhill side, an escalator handrail wrapped around a portion of the drive wheel, and two pressure rollers. One pressure roller is positioned adjacent to the downhill side of the drive wheel and forms a first nip therebetween and the other pressure roller is positioned adjacent to the uphill side of the drive wheel and forms a second nip therebetween. The escalator handrail is driven by the drive wheel with the assistance of the uphill pressure roller and the downhill pressure roller applying pressure to the handrail as it passes through each of the first and second nips so as to ensure sufficient contact area between the drive wheel and the handrail. There are also at least two guide rollers with at least one positioned adjacent to the downhill side of the drive wheel and at least one positioned adjacent to the uphill side of the drive wheel. The guide rollers provide for a smooth transition for the handrail as it travel around the drive wheel.
REFERENCES:
patent: 3049213 (1962-08-01), Fabula
patent: 3321060 (1967-05-01), Mullis et al.
patent: 3666075 (1972-05-01), Iwata
patent: 4134883 (1979-01-01), Mendelsohn et al.
patent: 4535880 (1985-08-01), Boltrek
patent: 4580675 (1986-04-01), Boltrek
patent: 4589539 (1986-05-01), Boltrek
patent: 5072820 (1991-12-01), Steffen et al.
patent: 5125494 (1992-06-01), Nurnberg et al.
Report from U.S. Dept. of Transportation entitled "Overview of Escalator Applications in Rail Transit", dated Jul. 1, 1980.
Evans James F.
Spriggs John P.
Dayoan D. Glenn
Home Elevators, Inc.
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