Patent ID: 6752061
Filing Date: 2004-06-22
Classification: F41A

Abstract:
A gun having a barrel that is connected to a breech ring and that is seated to be axially displaced in a cradle barrel of a gun cradle, and wherein:the gun barrel is seated at least in a first slide-bushing bearing disposed at the muzzle-side end of the cradle barrel, and in a second slide-bushing bearing disposed at the breech ring-side end of the cradle barrel; at least the first slide-bushing bearing is constructed to be free of any lifting effect, and including a barrel bushing, whose outer surface is seated to slide in the cradle barrel; an inner surface of the first barrel bushing has at least three groove-shaped recesses, that are uniformly spaced over the circumference of the first barrel bushing; a plurality of tab-shaped protrusions corresponding to the number of said recesses is disposed on one of an outer surface of the gun barrel and an outer surface of an inside ring disposed on an outer surface of the gun barrel in a form-fit connection with the barrel gun, with the protrusions extending into respective groove-shaped recesses of the barrel bushing; and a predetermined amount of play is provided between the outer surface of the gun barrel or of the interior ring and the inner surface of the barrel bushing, and between respective end surfaces of the protrusions and respective adjacent inner surfaces of the respective groove-shaped recess of the barrel bushing with an expansion of the gun barrel during firing being within the predetermined amount of play.