Patent ID: 6336522
Filing Date: 2002-01-08
Classification: B66B,Y10S

Abstract:
A double-deck elevator car, comprising:a hoist configured to raise and lower a cage frame on which are mounted two vertically arranged cage chambers; a hoist control device configured to control said hoist and a speed of raising and lowering of said cage frame to cause the cage frame to accelerate at a set rate of acceleration, to then maintain a constant speed, and to then decelerate at a set rate of deceleration to a stop; a cage chamber drive device configured to drive at least one of the vertically arranged cage chambers so as to alter the relative distance between said two cage chambers; and a cage chamber position control device configured to control said cage chamber drive device to cause the relative distance between said two cage chambers to change during movement of said cage frame by the hoist controlled by the hoist control device so as to produce a combined movement by the hoist and the cage chamber drive device like a movement of a standard elevator car with a set rate of acceleration followed by movement at a constant speed and a set rate of deceleration to a stop at a selected floor.