| 摘要 |
PURPOSE:To prevent the crash of a human body with a door by laminating liquid crystal layers changed into opaque when power to the door consisting of a full transparent body is energized, and keeping the door in a state of closing until the door starts to open after the human body is detected by the door. CONSTITUTION:An automated door is constituted of the first detection device 2 to detect a human body who approaches the door 1 having the entire surface constituted of an transparent body within a specific distance and an opening and closing device to make opening and closing control of the door 1 in response to the detection device 2. It is constituted of a transparent body laminated with liquid crystal layers 15 which are changed into opaque in case power to the door is energized, and the second detection device 16 to detect a human body who approaches the door 1 with a specific speed is provided upward of the door. In addition, when a user approaches the door with a quick speed, the speed is measured by the second detection device 16 and is transmitted to an operation processing device 17. When it is decided that there is a danger of crashing in the door 1, it is transmitted to a power supply controlling device 18 to make the liquid crystal layers 15 in a state of power through a collector 19, it is changed in a state of opaque and is informed to the user. |
