Device for restraining the rise of a step roller of an escalator
AssigneeOtis Elevator Company
InventorJeong Rak Kim
Life of this patent
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Abstract
A device for restraining the rise of a step roller of an escalator prevents the step roller from colliding with rails of a track in turn around areas at the top and bottom of the escalator. The device comprises: a supplementary roller, which is disposed between an outer rail and an inner rail of the track; an elastic member for biasing the supplementary roller toward the outer rail to roll thereon; and a supporting block to which the elastic member is fixed.
Claims6
A device for restraining rise of a step roller of an escalator, the escalator including steps circulating a closed loop, a track having inner and outer rails and providing the circulating loop of the steps, and a step roller connected to each step and rolling along the inner rail of the track, the device comprising:
- a supplementary roller disposed between the outer rail and the inner rail of the track;
- and
- an elastic member for connecting the supplementary roller to the step, wherein the elastic member biases the supplementary roller toward the outer rail of the track to roll thereon, such that the rise of the step roller toward the outer rail is restrained.
Dependencies are inferred from the claim text.