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An automatic door, also known as an auto door, is a door that opens automatically, without the need for human intervention or usually upon sensing the approach of a person. A person can be detected by microwave pulses, infrared sensors , or pressure-sensing pads.
It was first used by Homer to describe an automatic door opening, [2] or automatic movement of wheeled tripods. [3] It is more often used to describe non-electronic moving machines, especially those that have been made to resemble human or animal actions, such as the jacks on old public striking clocks , or the cuckoo and any other animated ...
Swing side, door mounted sensor—mounted on the swing side of the door itself, used as the door is opening to detect a user in the way of the opening door. In that case, the operator stops the door. The sensitivity of infrared sensors must be reduced at the end of the opening angle, if it starts seeing a wall next to the door, so it may not ...
To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs. Historically, elevator doors were opened using simple harmonic motion by a set of mechanical linkages; the motor, geared down, would rotate linked arms, which in turn would drive the door.
Optical Triangulation Sensors are commonly used to provide door mounted safety detection on swinging automatic doors. These types of sensors are common in North America . When automatic swinging doors open and close, it is important that they do not come into contact with pedestrians passing through the door .
ADOR1 Automatic Chicken Coop Door. Made in the USA, ADOR has been in the game for a while. It's made of galvanized metal that's industrial-grade and built to last in outdoor conditions.
Alexander Miles (May 18, 1838 – May 7, 1918) was an African American inventor and businessman, known for being awarded a patent for automatically opening and closing elevator doors. He was awarded U.S. patent 371,207 on October 11, 1887.
Terraria (/ t ə ˈ r ɛər i ə / ⓘ tə-RAIR-ee-ə [1]) is a 2011 action-adventure sandbox game developed by Re-Logic. The game was first released for Windows and has since been ported to other PC and console platforms.