Driving mechanism for driving moving handrail

Details Driving mechanism for driving moving handrail Driving mechanism for driving moving handrail

1977-10-05

1980-04-29

Reeves, Robert B.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

Moving hand-support structure

198835, 226186, B65G 1500

Patent

active

042001773

ABSTRACT:
A driving mechanism for driving a moving handrail of an escalator and the like. The driving mechanism include driving rollers and guiding rollers which are disposed to confront with each other through the moving handrail interposed therebetween. The driving rollers are secured to a movable plate, while the guiding rollers are attached to fixed plates. The movable plate is adapted to be moved in the direction perpendicular to the moving handrail, while the fixed plates are firmly secured to a part of a truss frame which supports the escalator. The movable plate carries a sprocket by means of which the driving rollers are rotated to drive the moving handrail. The sprocket itself is adapted to be driven by a chain going therearound. The vertical component of the tensile force residing in the chain acts to press the driving rollers onto the moving handrail.

REFERENCES:
patent: 3331488 (1967-07-01), Wellman
patent: 3666075 (1972-05-01), Iwata
patent: 3779360 (1973-12-01), Taher et al.

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