Lockback

A lockback is a type of locking mechanism commonly found on folding knives. It is designed to prevent the blade from accidentally closing during use, thus enhancing safety. The lockback mechanism works by using a spring-loaded lever, often located at the rear of the handle, that engages a notch on the base of the blade when it is fully opened. To close the knife, the user must manually push this lever forward, disengaging it from the blade's notch.

The primary advantage of a lockback is its inherent security. Unlike slip-joint mechanisms that rely solely on spring tension, a lockback provides a positive lock, significantly reducing the risk of the blade folding unexpectedly. This makes lockback knives suitable for more demanding tasks where consistent blade security is important.

The operation of a lockback mechanism is generally straightforward. When the blade is opened, a spring arm snaps into place, holding the blade open. Releasing this spring arm allows the blade to fold. Various designs exist, but the fundamental principle of a spring-loaded lever securing the blade remains consistent.

Lockback knives are a popular choice for everyday carry, outdoor activities, and tactical applications due to their reliable locking system. They are known for their durability and the secure feeling they provide during use.