Inside lever always unlocked for immediate egress.
Types of door lock classroom function.
Classroom security function allows control of the outside lever via key cylinders on both the inside and outside of the door.
Ansi f84 classroom lock outside lever locked and unlocked by key.
There are two functions that are most commonly used.
Classroom lock function is defined as a lock where the latch bolt is operated by lever either side except when outside lever is locked from the outside by a key.
When electricity is applied to an electrically locked el mortise lock the outside lever is locked but on most electrified lock functions the inside lever always allows free egress.
This function was originally designed for schools to prevent students from tampering with the lock but most new schools have classroom security locks office function locks or electrified locks.
Inside lever always unlocked for immediate egress.
Just as the name implies this door lock function is for use on openings where privacy is a concern.
The latching mechanism can be retracted by.
The lock can be left in the locked or unlocked state by using the key and there is no means of locking or unlocking the door from the inside.
This particular lock is always locked and requires a key to be used each time you want.
Electrically locked fail safe or electrically unlocked fail secure.
Ansi f86 storeroom lock outside lever fixed.
Classroom security locks allow control of the outside lever via a typical key cylinder on both sides of the door.
A teacher can lock her classroom door during a lock down event without ever opening the door and possibly being exposed to an intruder in the corridor.
The passage function is the most simple of the door locks we will discuss here.
Entrance by key only.
Applies to cylindrical bored pre assembled locks and latches.