FI980030A - Firearm Launcher - Google Patents

Abstract

The present publication describes a firing mechanism for firearms, which comprises a body part 1, by means of which the firing mechanism is fixed to the weapon by easily tightened and slackened screws or a quick-locking device, in this case to a rifle breech body 8, linear guides 2 having been fixed to the body part, which with their shoulders are fixed in the body 14 of the linear guide together with a permanent magnet 3, which moves on guides in the body and can be adjusted with an adjusting screw 15, and a locking disk, which is fixed in the linear guide body 14 and together with the magnet 3 forms a trigger detent B, and a firing lever 5, which serves as catch for a striker pin 10 and together with the linear guide 2 forms a detent A releasing the striker pin, a trigger 12, which is fixed to a trigger body 13, the trigger body 13 being articulated to the linear guide body 14 in a depressor firing mechanism, the stiffness of the depressor being adjusted by an adjusting screw 16 and the length of the depressor by an adjusting screw 17, and a safety catch pin 11, which is fixed to the body part, and a balance 18, which is articulated to the body part 1 and the shaft of the linear guide 2. According to the invention the detent A releasing the striker pin and the trigger detent B are separate and function simultaneously and their movements are controlled by the linear guide 2, the trigger detent B has been constructed with a permanent magnet 3 and a locking disk 4, which is released from the magnet 3 when pressure is exerted on the trigger, the trigger pull resistance is adjusted by moving the magnet 3, the contact surface between the magnet 3 and the locking disk 4 being modified, the detent A releasing the striker pin comprises a firing lever 5 and the shaft of the linear guide 2, the force of the tip of the firing lever 5 against the shaft of the linear guide 2 is adjusted as little as possible by way of the length of the moment arm of the firing lever 5 and an auxiliary spring 6, an auxiliary spring 7 pushes the trigger 12 with associated parts to such an extent that the magnet 3 is capable of drawing the locking disk 4 tight against the magnet 3, when the trigger is released, a balance 18 balances the trigger 12 with associated parts, since the mass of the balance 18 produces a force in a direction other than that of the trigger 12 and the mass of the associated parts. <IMAGE>