PROTECTING FENCE SAFE DOOR CONTROL DEVICE OF HOIST CAR

摘要

PURPOSE: A safe door control device is provided to stop a hoist car by blocking the power for transmitting power inside the hoist car if the door is opened while the hoist car is working. CONSTITUTION: The door of the hoist car is installed with a first transmission device connected with two contacting points of a door opening and closing relay for interlocking with a switch for opening and closing the door and a second receiving device for controlling a door lock relay for operating a door locker. Herein, a first receiving device to control a power transmission relay for operating a power transmission opening and closing auxiliary circuit and a second transmission device connected to a lift and a drop switch of the hoist car are installed inside the hoist car.