Patent ID: 8020302

Claim:
A folding knife, comprising: a handle; a blade, with a first end pivotally coupled to a first end of the handle at a first connecting position, wherein the blade is able to be pivotally moved out from the handle or moved into the handle; a resilient element, with a first end fixed on a place proximate to a second end of the handle, wherein a second end of the resilient element is extended to a position proximate to the first connecting position, such that when the blade is completely moved into the handle, the second end of the resilient element pushes against a pushing portion of the blade and produces a first torque to the blade to keep the blade received in the handle, and when the blade is turned away from the handle to a predetermined angle, the second end of the resilient element pushes against the pushing portion of the blade and produces a second torque in a direction opposite to the first torque to the blade to turn the blade completely out from the handle, wherein when the blade is completely turned out from the handle, the second end of the resilient element is no longer in contact with the pushing portion of the blade; and a poking element, pivotally coupled to the handle at the first connecting position, wherein the poking element has a body portion, a first leg extended out from the handle to a position outside a rotating range of the blade and having a protruding poking portion formed thereon, and a second leg of the poking element has a pressing portion for pressing onto the blade when the blade is completely moved into the handle, wherein the first leg and the second leg join at the body portion to form substantially a “V” shape; thereby, when the protruding poking portion is poked by a user, the pressing portion exerts a force to the blade to turn the blade away from the handle to the predetermined angle, such that in turn the resilient element causes the blade to be completely turned out from the handle automatically.