CLASP KNIFE Russian patent published in 2008 - IPC B26B1/02 F41B13/00 

FIELD: weapons and ammunition.

SUBSTANCE: knife contains a blade, handle, spring and clamp. The blade is made with a ledge and the rounded off end, and is pivotally fixed on a handle so that to turn at 180° and be fixed in working and non-working positions by means of a clamp. The rounded off end has an aperture displaced from its centre. The spring is executed in the form of a plate of rectangular section. The blade ledge and the displaced aperture are made to maintain a bend of the said plate while turning the blade in the closed position and turn the blade under the operation of a plate while turning it into working position.

EFFECT: simpler design.

2 dwg