Escalator steps having lateral safety devices

Details Escalator steps having lateral safety devices Escalator steps having lateral safety devices

1988-06-30

1989-08-22

Werner, Frank E.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

B66B 2312

Patent

active

048587451

ABSTRACT:
A safety device for the side edges of every escalator step tread plate and riser is formed of an elastic synthetic material of a very low coefficient of friction. All ribs on the body of the safety device are supported tiltably such that under loading the outermost safety rib touches the handrail base and closes the air gap between the step and the base. The tilting is controlled by a wedge-shaped recess formed in the body. The recess is closed toward the air gap by either an inwardly arched terminating wall or by a flange.

REFERENCES:
patent: 3986595 (1976-10-01), Asano et al.
patent: 4362232 (1982-12-01), Saito et al.
patent: 4374558 (1983-02-01), Saito
patent: 4397383 (1983-08-01), James
patent: 4413719 (1983-11-01), White
patent: 4570781 (1986-02-01), Kappenhagen

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