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The original LAWKS mechanism consists of a switch on the handle of the knife, connected to the liner lock. When pulled back, the liner lock can easily be pushed back to close the knife. But when the safety switch is pushed forward, it acts as an extra lock ensuring the linerlock can not be used to close the knife, making the folding knife a ...
With the "frame lock," the frame rather than the liner acts like the leaf spring/lock bar. Another variation, known as the inset Linerlock has the leaf spring embedded into the plastic scales of the handle, technically forgoing a metal liner. Kershaw Knives uses "a pin-and-dimple lock" on a knife designed by custom knifemaker RJ Martin called ...
An assisted-opening knife is a type of folding knife which uses an internal mechanism to finish the opening of the blade once the user has partially opened it using a flipper or thumbstud attached to the blade. [1] When the knife is in the closed position, the blade is held in place by means of torsion springs and an additional blade lock ...
Most notably, Walker is known for the invention of the Walker Linerlock in 1981, which has since become the industry standard in folding knife mechanisms. [2] [5] What sets Walker's design apart is a long split in one of the liners which acts as a leaf-spring in the liner of the knife accompanied. This feature cuts down on mechanical stress.
The gravity knife uses a button, trigger, or fulcrum lever to release the blade from both the open and the closed positions, and may use a side-folding or telescoping (out-the-front, or OTF) blade. While most military gravity knives utilize a locking blade design, other types may not mechanically lock open but rely instead upon friction to ...
It is intended for attaching a bayonet, which is typically a short-bladed multipurpose knife bayonet. The bayonet lug is the metal mount that either locks the bayonet onto the weapon or provides a base for the bayonet to rest against, so that when a bayonet cut or thrust is made, the bayonet does not move or slip backwards.
Locks that have master keys have a second set of the mechanism used to operate them that is identical to all of the others in the set of locks. For example, master keyed pin tumbler locks often have two shear points at each pin position, one for the change key and one for the master key. A far more secure (and more expensive) system has two ...
The Chubb detector lock is a variation of the lever lock which was designed to detect and prevent picking attempts. Lever locks can be drilled, but usually a template or stencil is required to mark the drilling point, as the lock mechanism is commonly mortised into the door and so it is harder to determine the point at which to drill.