Panic bar is a type of door hardware designed for emergency exits, enabling swift and unimpeded egress from a building during emergencies. Characterised by its horizontal bar mechanism, this device is mounted on the interior side of exit doors. When the bar is pressed or pushed, it activates a mechanism that unlatches the door, allowing occupants to exit quickly without the need to manipulate knobs or levers. The design of the panic bar complies with life safety and building code regulations, which mandate panic hardware in specific public and commercial buildings to ensure public safety.
This device typically incorporates a spring-loaded metal bar fixed horizontally to the door at hand height, and it extends across the width of the door. In its operation, the depression of the bar releases the latch mechanism through a system of internal springs and levers, effectively unlocking the door from the interior. Panic bars are often integrated with alarm systems that alert security personnel when the door is opened, which is particularly crucial in preventing unauthorised access or detecting emergency situations. The integration of panic bars with fire and safety measures, as well as their adaptability to various types of door materials and sizes, marks their importance in modern architectural safety standards and emergency preparedness.