Escalator system with wheel chair steps and an operating method

Details Escalator system with wheel chair steps and an operating method Escalator system with wheel chair steps and an operating method

1997-07-21

1999-11-30

Valenza, Joseph E.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

B66B 2312

Patent

active

059926058

ABSTRACT:
An escalator system with wheel chair steps comprising a main frame having an upper end and a lower end, a plurality of steps connected in an endless conveyor loop and capable of circulating along the main frame, and an operating mechanism disposed at a position close to the ends of the main frame. The escalator system further comprises a first wheel chair step disposed between the steps and having a connection arm capable of being displaced toward the lower end of the main frame by a shifter mechanism engageable with the operating mechanism when necessary. The escalator system also comprises a second wheel chair step disposed between the steps and having a rising tread board capable of being raised by a raising mechanism engageable with the operating mechanisms when necessary and a boarding plate capable of being displaced toward the lower end of the main frame by a shifter mechanism engageable with the operating mechanism when necessary. The rising tread board, when raised, is supported by the connection arm displaced in a projected position and defines a combined and enlarged horizontal surface together with the tread board of the first wheel chair step.

REFERENCES:
patent: 4681207 (1987-07-01), Goto et al.
patent: 5024314 (1991-06-01), Kitamura et al.
patent: 5062519 (1991-11-01), Haruta

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