Safe operation-stop method for escalator
AssigneeMijuhitec Co., Ltd.
InventorHo Yeon Lee
Life of this patent
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Abstract
The present invention relates to a safe operation-stop method for an escalator for safely operating and stopping an escalator that senses an abnormal speed of the escalator so as to prevent passengers from falling. A safe operation-stop method for an escalator is provided, the method including sensing an abnormal speed of the escalator and stopping the escalator before it is reversely rotated, and being capable of reliable braking when an abnormal speed of the escalator occurs, thereby preventing passengers from falling by adjusting the inertial stopping distance when braking.
Claims10
A method for safely stopping operation of an escalator comprising a driving motor, a main control panel for controlling the driving motor, an emergency brake apparatus configured to perform emergency braking on the escalator, and a brake unit configured to control the emergency brake apparatus, wherein the main control panel and the brake unit are configured to communicate with each other, the driving motor and a driving sprocket of a driving shaft are connected by a driving chain, and a step sprocket is configured to rotate when the driving shaft is rotated by a motive power of the driving motor that is configured to drive a step connected on an endless track through step chains, the method comprising:
- a characteristic storage step for storing, by the brake unit, start-up, normal moving, braking, and deceleration characteristics of the escalator while the escalator is configured and started up;
- a braking step for dividing, by the brake unit, a moving speed of the escalator into multiple stages that are respectively based upon the stored characteristics of the escalator, determining an abnormality, and performing braking based on the determination;
- and
- a test braking step for performing, by the brake unit, test braking in order to test the emergency brake apparatus when the operation of the escalator is normally terminated.
Dependencies are inferred from the claim text.