Curved escalator with fixed center constant radius path of trave

Details Curved escalator with fixed center constant radius path of trave Curved escalator with fixed center constant radius path of trave

1989-03-27

1989-12-05

Spar, Robert J.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

198778, 198845, B66B 2102

Patent

active

048846732

ABSTRACT:
An escalator is provided with a curved path of travel from its entry to its exit landings. The path of travel of the escalator steps as seen in plan is a curve having a fixed center and a constant radius from landing to landing. In elevation, each landing portion will be disposed in vertically spaced horizontal planes, and there will be a medial constant slope ascending or descending portion. Interconnecting each landing portion with the constant slope portion will be entry and exit transitional curved portions of varying slope as seen in the elevational view. To enable the steps to traverse the curved path successfully, the effective length of at least one of the step chains is varied at different points along the path of travel of the escalator.

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