Escalator with high speed inclined section
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsManabu Ogura, Takashi Yumura, Joichi Nakamura
Life of this patent
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Abstract
In an escalator with a high speed inclined section, steps are coupled in an endless manner and circulate. Driving roller shafts of the steps adjacent to each other are coupled with each other by a link mechanism. An interval between the driving roller shafts is changed as the link mechanism is transformed. An outer peripheral length change absorbing mechanism is provided in a reversing section of a circulation path of the steps. The outer peripheral length change absorbing mechanism absorbs a change in an outer peripheral length of a polygon, formed by connecting axes of the driving rollers with straight lines, while guiding movement of the driving rollers in the reversing section.
Claims7
An escalator with a high speed inclined section comprising:
- a main frame;
- a plurality of steps located in the main frame and coupled in an endless manner to move and circulate;
- a driving roller shaft and a trailing roller shaft on each of the steps;
- driving rollers on each of the steps and rotatable about the driving roller shaft;
- trailing rollers on each of the steps and rotatable about the trailing roller shaft;
- a plurality of link mechanisms which couple the driving roller shafts of adjacent steps and which transform for changing an interval between the driving roller shafts;
- rotatable auxiliary rollers on each of the link mechanisms;
- drive rails on the main frame for guiding movement of the driving rollers;
- trail rails on the main frame for guiding movement of the trailing rollers;
- auxiliary rails on the main frame for guiding movement of the auxiliary rollers for transforming the link mechanisms;
- and
- an outer peripheral length change absorbing mechanism, in a reversing section of a circulation path of the steps, for absorbing a change in an outer peripheral length of a polygon, formed by connecting axes of the driving rollers with straight lines, while guiding the movement of the driving rollers in the reversing section.
Dependencies are inferred from the claim text.