Double deck elevator that controls a velocity change during inter-cage distance adjustment

Abstract

A double deck elevator including a winding machine which lifts up/down a cage frame loaded with two cages in a vertical direction, a cage driving unit which changes a relative distance between upper and lower cages, and a cage position controller which starts an inter-cage distance adjustment operation of the cage driving unit almost at the same time when the winding machine is shifted from an acceleration operation to a constant velocity operation, and changes an operating velocity of the inter-cage distance adjustment operation corresponding to a destination floor almost at the same time when the winding machine changes from the constant velocity operation to a deceleration operation after the destination floor is determined, whereby completing the inter-cage distance adjustment operation almost at the same time when the winding machine stops.