Patent ID: 6481135
Filing Date: 2002-11-19
Classification: F41A

Abstract:
A rotatable breech mechanism, in combination with a spring-loaded extractor, bolt handle and barrel chamber sleeve, comprising a bolt rotatable in a chamber housing by said bolt handle, and which is locked in a first position to said barrel chamber sleeve and is unlocked in a second position from said barrel chamber sleeve, said spring-loaded extractor arranged at a front end of said bolt, said extractor gripping in the first position of said bolt in front an edge of a bottom of a sleeve of a cartridge positioned in a cartridge chamber, whereby upon a rotation of said bolt from the first position into the second position, said chamber housing with said bolt automatically carries out a movement away from the cartridge chamber, during which said extractor releases the cartridge from the cartridge chamber, wherein said chamber housing supports axially movably a pin, said pin supported at a front end on said chamber sleeve, in the first position of said bolt a rear end of said pin engages a forwardly open recess of a shoulder surface on said bolt handle, and upon a rotation of said bolt from the first position the rear end of said pin slides out of the recess onto the shoulder surface, and the chamber housing with said bolt is moved to the rear into a rearward position.