A gate mechanism is a type of mechanical device that is used to control the movement of a gate. It is typically composed of a LATCH, which is a device that holds the gate in place, and a lever or handle that can be used to open and close the gate. The LATCH is usually made of metal and is designed to securely hold the gate in place when it is closed. The lever or handle is used to open and close the gate, allowing for easy access. Gate mechanisms are commonly used in residential and commercial settings to provide security and privacy.