| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening and closing door device eliminating the need for preparation of a portable controller for door opening and closing operation in a plant, formed at a low cost, and allowing a labor and a cost for installation operation to be reduced remarkably by eliminating the need for wiring operation connecting the drive part of a door to the detection part of the opening and closing operation when the door device is installed. SOLUTION: This opening and closing door device comprises a radio transmitting part 6 transmitting signals when a suspended cord 5 installed at a specified position apart from a door 2 is pulled, a radio receiving part 11 receiving signals transmitted from the radio transmitting part, and a drive part driving the door 2 based on the signals received by the radio receiving part 11. |
