Patent ID: 6129000
Filing Date: 2000-10-10
Classification: F41A

Abstract:
Firearm comprising:a housing having a front firing position stop and a rear opening position stop;a bolt carriage borne in a displaceable fashion in said housing for motion parallel to a firing direction, said bolt carriage having an impact surface and an opening at a radial side thereof;a yoke member having a guide opening, said yoke member disposed for form fitting displacement with said bolt carriage;a barrel borne in an axially displaceable fashion in said bolt carriage opening, said barrel having a back end stopped by said bolt carriage impact surface;an advancing spring engaging, at a front end thereof, said bolt carriage and, at an other end thereof, said housing; anda guide rod borne at a front end thereof substantially parallel to said barrel, said guide rod connected at a rear side with said barrel to allow displacement play, said guide rod comprising a locking mechanism for locking said barrel and said bolt carriage with respect to each other in a displacement direction at a front firing position and for unlocking said barrel and said bolt carriage after a bullet leaves said barrel subsequent to a common recoil displacement in a direction opposite to a shooting direction such that said bolt carriage continues towards said rear opened position whereas a path of said barrel is stopped, wherein said guide rod can be at least one of rotated and pivoted independent of said barrel for locking and unlocking with unlocking occurring without radial displacement and rotation of said barrel.