Firing pin
1st closure, 2nd cardboard closure, 3rd clamp, 4th impact axis, 5th spring, 6th firing pin, 7th washer made of leather, 8th thread, 9th detonator, 10th wick, 11th. Ignition paste, 12. Detonator, 13. Ignition paste 1, 14. Release latch, 15. Safety pin, 16. Shift lever, 17. General view
The firing pin is part of the trigger system of cartridges - firearms . It usually consists of a metal pin which, when the weapon is fired, hits the part of the cartridge in which the primer is housed. With center fire cartridges this is the primer , with rimfire cartridges the edge of the case base, with Flobert cartridges the entire case base.
The trigger mechanism of a hand grenade or mine is also known as a firing pin.
function
The firing pin is either driven by the mainspring , which is tensioned when the bolt or trigger is operated, or it is hit by the impact of a hammer (hammer, hammer) or by the forward movement of the bolt on the primer.
Many firing weapon systems do not have a separate firing pin, but rather this is a structural part of the breech or hammer.
When the firing pin hits the primer, the pressure sets in motion a chemical reaction which leads to the explosion of the primer, which in turn serves as the initial ignition of the propellant.
In modern weapons, the firing pin is usually guided through the breech block or the butt plate to the primer.
history
An early form of the firing pin is the firing pin , which was introduced by Dreyse for the first military breech- loader .
Web links
- Youtube: Luger P08, animation of a firing pin