Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Reexamination Certificate
2000-03-14
2001-06-19
Bidwell, James R. (Department: 3651)
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
Reexamination Certificate
active
06247574
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an escalator installation method for installing an escalator at a position where a stairway is provided in a station and the like.
2. Description of the Prior Art
Conventionally, as a technique for providing an escalator at a stairway portion forming a pedestrian passage in an architectural structure, those disclosed in, for example, Japanese Patent Application Laid-Open No. Hei7-179282, Japanese Patent Application Laid-Open No. Hei7-179283, and Japanese Patent Application Laid-Open No. Hei7-179284 are known.
These prior arts do not clearly disclose how to install an escalator at a position where a stairway is provided.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an escalator installation method which ensures an installation operation with the high working efficiency and which is capable of stably installing an escalator.
To this end, according to the present invention, a first drilled portion is formed by drilling an upper floor positioned on an upper side of a stairway; a second drilled portion is formed by drilling a lower floor positioned on a lower side of the stairway; an upper flat portion of the escalator is housed in the first drilled portion of the upper floor; a lower flat portion of the escalator is housed in the second drilled portion of the lower floor; and an inclined portion of the escalator is arranged on the stairway portion positioned between the first drilled portion and the second drilled portion.
Drilling only the first drilled portion accommodating the upper flat portion of the escalator and the second drilled portion for accommodating the lower flat portion of the escalator suffices for the installation method, and the escalator can be installed without the drilling operation over the entire length of the escalator.
REFERENCES:
patent: 4811829 (1989-03-01), Nakazawa et al.
patent: 6129198 (2000-10-01), Nusime
Japanese Patent Unexamined Publication No. 7-179282.
Japanese Patent Unexamined Publication No. 7-179283.
Japanese Patent Unexamined Publication No. 7-179284.
Saito Chuichi
Yamaguchi Yukihiro
Yamaki Masamitsu
Antonelli Terry Stout & Kraus LLP
Bidwell James R.
Hitachi , Ltd.
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