Passenger conveyor device

Details Passenger conveyor device Passenger conveyor device

2007-01-09

2007-01-09

Crawford, Gene O. (Department: 3651)

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

C198S333000, C198S327000, C198S328000

Reexamination Certificate

active

10415889

ABSTRACT:
A plurality of steps33are connected to a pair of step chains32wound around step chain sprockets30. The step chain sprockets30drives the step chains32to turn the step chains32through a forward path43a, a return path43b, and reversing areas at the opposite ends of the forward path and the return path. Front wheels39are supported on shafts attached to the opposite side surfaces of a front part of the step33and connected to the step chains32, respectively. Rear wheels40are supported on a rear part of the step33. Front wheel guide rails44supporting and guiding the front wheels39and rear wheel guide rails45for supporting and guiding the rear wheels40guides the step33in the forward path. In the reversing area, in which the step is inverted, an auxiliary step guide means including auxiliary rollers41and auxiliary roller guide rails46controls the position of the step33such that the rear wheels approach a connecting shaft30asupporting the step chain sprockets30. The depthwise dimension of a part, corresponding to the reversing unit, of a frame is small.

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