A folding knife having a blade pivotably connected to a handle. The blade has a tang including a contoured peripheral surface and an open block engagement tang surface, and an axis of rotation. The handle has a slot having at least one top surface. The knife has a locking block translatable on a plane orthogonal to the axis of rotation of the blade. The locking block has an engagement surface positioned to contact at least one of the contoured peripheral surface and the open block engagement tang surface when the blade is in an open position. The locking block has at least two bearing surfaces engaging the at least one top surface along two lines, with the at least two bearing surfaces positioned so that a force applied by the blade to the engagement surface is directed along a line between the at least two bearing surfaces.

Folding knife embodiments are disclosed herein comprising a blade operable to pivot relative to a handle, between an open position and a closed position, a blade-locking member disposed in the handle and being moveable in a first direction between an unlocked position and a locked position to retain the blade in at least one of the open or closed positions. The folding knife may further comprise a safety member mounted on the blade-locking member and being moveable relative thereto in a second direction between a release position and a safety position. Wherein when the safety member is in the safety position, the safety member and the blade-locking member are blocked from moving in the first direction, and wherein when the safety member is in the release position, the safety member and the blade-locking member can be moved in the first direction to move the blade-locking member to the unlocked position.

The present invention is to provide a folding knife with a locking function comprising a handle, a blade pivotally connected to an end of handle through a pivot pin, a poke member and a first elastic component; wherein blade includes a locking pin protruded adjacent to pivot pin; e poke member includes a poke part at an end thereof and exposed out of handle. The other end of poke member is pivotally connected between pivot pin and the other end of handle. Poke member includes a locking slot recessed adjacent to a middle section thereof and facing pivot pin. first elastic component includes an end abutted against the middle section, and the other end fixed between poke member and the other end of handle, for applying an elastic force on poke member, so as to ensure locking pin to be engaged into locking slot, when blade is received inside handle.

An automatic opening tool with sliding scale release, including a modular body; a tool; a gear assembly attachable to the tool; a first resilient member for rotating the tool; a sear configured to mate with the gear assembly; a second resilient member for imparting a resilient force to the sear; and cover plates.

The invention discloses a folding knife, comprising: a blade, whose upper part is configured with a lockup switch mounting hole; a handle, whose lower part is configured with a stopping slot; a lockup switch provided in the lockup switch mounting hole and having a lockup part located on the first side of the blade, the lockup part has a lockup position at which it is clapped in the stopping slot when the blade and the handle are buckled up and an unlock position at which it is released from the stopping slot when the blade is separated from the handle. The folding knife of the invention enables safe locking after the blade is folded in the handle by making use of the lockup switch having a lockup part, the structure of the folding knife is simple and easy to implement, and safety performance of the folding knife is improved.

The present invention is to provide a folding knife with a locking function comprising a handle, a blade pivotally connected to an end of handle through a pivot pin, a poke member and a first elastic component; wherein blade includes a locking pin protruded adjacent to pivot pin; e poke member includes a poke part at an end thereof and exposed out of handle. The other end of poke member is pivotally connected between pivot pin and the other end of handle. Poke member includes a locking slot recessed adjacent to a middle section thereof and facing pivot pin. first elastic component includes an end abutted against the middle section, and the other end fixed between poke member and the other end of handle, for applying an elastic force on poke member, so as to ensure locking pin to be engaged into locking slot, when blade is received inside handle.

A locking mechanism for a folding knife is provided. More specifically, the locking mechanism is a rotational wedge locking mechanism that maintains the folding knife's blade in an extended position and prevents the blade from inadvertently closing when the knife is in use in the extended position. The rotational wedge locking mechanism also impedes the folding knife from inadvertently opening when the blade is in a closed position of storage. The rotational wedge locking mechanism generally comprises a lock pin, a means for moving the lock pin, and a biasing member, which work in conjunction with the tang of the blade and the back spacer to securely retain the folding knife in an open or closed position.

A folding knife, including a handle, with at least two parts connected to form a cavity therebetween, and a blade having a sharpened edge and a tang. The blade is rotatable between an open position and a closed position. The blade defines a first plane inside the cavity. The tang includes a step protrusion and a rounded protrusion. A stop pin restricts movement of the blade in an opening direction. The folding knife also includes a locking member rotatable from a first position, allowing the blade to rotate, to a second position blocking rotation of the blade by engaging one of the tang's protrusions. The engagement of the locking member with the step protrusion of the tang locks the blade in its open position, and the engagement of the locking member with the rounded protrusion of the tang locks the blade in its closed position.

A folding knife assembly includes a blade system which is disposable between an open configuration and a closed configuration using a single hand. The blade system includes a fixed blade portion and a movable blade portion, wherein the fixed blade portion and moveable blade portion are cooperatively structured to engage one another in an interlocked configuration when the blade system is disposed in an open configuration. The folding knife assembly also includes a positioning assembly structured to facilitate disposition of the blade system between an open configuration and a closed configuration. A locking assembly is provided and is structured to operatively engage at least a portion of the positioning assembly to releasably secure the blade system in the open configuration, and to operatively disengage the positioning assembly to permit disposition of the blade system into a closed configuration.

The present invention is to provide a knife configured to receive a blade securely and safely in a handle thereof. The handle is assembled at least from first to third plates. The blade has one end pivotally connected between the second and third plates. The first plate has a switch groove extending in a front-rear direction and configured to position a locking switch. The second plate has a positioning hole corresponding to the switch groove. A positioning member (e.g., a steel ball) is engaged in the positioning hole. When the blade is received in the handle, an engaging hole in the blade corresponds precisely to the positioning hole so that a user can push the locking switch against a top portion of the positioning member, and consequentially for enabling a bottom portion of the positioning member to extend into the engaging hole, thereby fixing the blade and preventing the blade from exposure.