Knife with retractable blade, usable particularly in a hostile environment

Abstract

The knife has a handle (2) attached at the rear of a sheath (1), and a blade (3) sliding in the sheath in a manner to completely retract in the sheath or to exceed to the front of the sheath. A blade actuating system has a trigger (11) that is movable under the handle, and a rod connects the trigger to the blade. A hand grip bar (9) of the system is articulated at the sheath by an axle (10), and the trigger comprises a return spring (13).

Description

technical field

[0001] The subject of the invention is a knife with a telescopic blade ("telescopic cutting knife") adapted to work in special situations, such as working in harsh environments, where a direct grasp of the tool is not possible. Background technique

[0002] Working in harsh environments is accomplished with a glove box, where the operator inserts his (or her) arms into a wall with a master and slave arm that mimics the operator's motion on the other side of the protective wall. remote control machine. The operator cannot achieve complete freedom of movement and does not feel the same sensations as he would feel under normal working conditions, thus reducing dexterity. As a result, many tasks become difficult to perform, wherein, in the application considered here with regard to telescoping knives, the actions of opening and retracting the blade, and locking the blade at a selected position are usually accomplished by manipulating a small mechanism on the kni...

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