PASSENGER OR CARGO CONVEYOR, METHOD FOR DIAGNOSING LOOSENING IN DRIVE CHAIN IN PASSENGER OR CARGO CONVEYOR, AND LOOSENING DIAGNOSIS PROGRAM FOR DRIVE CHAIN IN PASSENGER OR CARGO CONVEYOR

摘要

PROBLEM TO BE SOLVED: To diagnose the loosening quantity of a drive chain in a passenger or cargo conveyor.;SOLUTION: In this passenger or cargo conveyor, the rotation of a drive motor is transmitted by the drive chain to the rotation of a sprocket, and converted into the movement of a stair chain wound around the sprocket for moving stairs installed on the stair chain. For the diagnosis of loosening in the drive chain, DOWN operation is performed first, and stopped properly to gather the loosening to one side of the drive chain. The rotation position of the drive motor at this time is detected as an initial value (S14-S18). Next, UP operation is performed, the elimination of the loosening and the start of the movement of the stairs are detected by an acceleration sensor, and stopped. The rotation position of the drive motor at this time is compared with the initial value, and the loosening quantity in the drive chain is determined (S20-S26). Determination data are sent to a maintenance center or the like for use.;COPYRIGHT: (C)2006,JPO&NCIPI