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When the bar is depressed, a chord within the vertical rod gets pulled, which lowers a latch at the top and/or bottom and allows the door to open. The Pullman latch, which attaches to a Pullman keeper, is the locking mechanism usually used at the ends of the vertical rods. [8] More expensive products may feature vertical rods and latches ...
This design of door can be lighter than a plug door of the same dimensions due to the need for reinforcing the opening around a plug door. A door plug, not to be confused with a plug door, is used in some of Boeing's 737-900ER [2] and MAX 9s instead of an actual emergency exit door. It can be removed outwards for maintenance and requires stop ...
A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems. [2]
An electric strike is an access control device used for door frames. It replaces the fixed strike faceplate often used with a latch (also known as a keeper). Like a fixed strike plate, it normally presents a ramped or beveled surface to the locking latch allowing the door to close and latch just like a fixed strike would.
To prevent this, a special latching system was used that locked shut under pressure when properly closed. To ensure the latches were properly positioned, a handle on the outside of the door pressed small metal pins into the latches; if the latches were in an improper location the pins would not align and the handle would not close. [4]
An investigation into latch issues began on March 25, 2024, according to a recall report from Tesla to the NHTSA, In April, it was discovered it was a latch issue. Tesla made the recall on July 17.
A spring applies force to close the door, which the dashpot offsets by forcing fluid to flow through an orifice, often adjustable, between reservoirs, which slows the motion of the door. Consumer electronics often use dashpots where it is undesirable for a media access door or control panel to suddenly pop open when the door latch is released ...
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