Escalator of type in which intermediate section thereof is accelerated

Abstract

A chain link (12) of a step chain (10) for endlessly connecting steps (3) has a fixed link (12a) and a movable link (12b). The fixed link (12a) connects a rear section fixation position (13a) near a rear wheel (5) and an intermediate section fixation position (13b) between a front wheel (4) and the rear wheel. The movable link (12b) connects a rear section fixation position of a preceding step of adjacent two steps and an intermediate section fixation section of the following step. Near an entry landing or exit landing, the intermediate section fixation position of each step moves along a circular-arc locus about a fulcrum that is the rear section fixation position of the preceding step, thereby a difference in height between the adjacent steps is reduced.

Description

technical field [0001] The invention relates to an intermediate acceleration type escalator, the moving speed of the steps at the intermediate slope is faster than the moving speed of the steps near the entrance and the descending entrance. Background technique [0002] In recent years, in the case of escalators with long travel distances, attempts have been made to improve conveyance efficiency and improve passenger convenience by increasing the travel speed of steps. When the moving speed of the steps is increased in this way, it is particularly important to sufficiently ensure the safety of passengers getting on and off. From such a point of view, there is a proposal to make the moving speed of the steps relatively slow in the vicinity of the landing and landing, and to move the steps at a high speed only in the middle inclined portion. [0003] This kind of escalator that makes the moving speed of the steps at the middle inclined portion faster than the moving speed of ...

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned prior art, not only is the mechanism for reducing the moving speed of the steps near the entrance of the landing and the exit of the stairs complicated, but also the distance between adjacent steps, that is, the distance between the driving roller of the leading step and the driving roller of the following step The accuracy of the distance between them largely depends on the shape of the first link and the second link, and the shape and installation state of the guide rail for auxiliary rollers. When there is an error in these aspects, it may There is a large gap between adjacent steps, or the situation where adjacent steps interfere with each other

[0008] Therefore, for example, by deepening the groove of the starting riser called the cleat on the comb-shaped tread where the adjacent steps mesh with each other, by making the meshing part have a margin, so-called absorption of the distance error between the adjacent steps can be realized. Although the above studies have been carried out, it is difficult to ensure strength if the design groove is too deep, which may lead to damage

[0009] Furthermore, generally, anxious passengers walk and move on one side of the steps in order to reach the upper floor quickly, and in the above-mentioned prior art, at the intermediate inclined portion where the steps move at high speed, the step difference between adjacent steps becomes large, and The end face of the step leading to the front of the next step will be inclined greatly, so it will be difficult for passengers to walk and move on the step safely

Therefore, to anxious passengers, although the steps are moving at high speed, they cannot walk and move on them, so there will be dissatisfaction

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