Breech device for bolt-action firearms

F - Mech Eng,Light,Heat,Weapons – 41 – A

Patent

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Details

F41A 3/18 (2006.01) F41A 3/30 (2006.01)

Patent

CA 2439964

The invention relates to a breech device for bolt-action firearms, the breech device consisting of a breech body (2) reciprocating in the receiver (1) and rotatable into locking position. In its front part, the breech body has locking lugs (3, 4, 5) located in three sectors, the locking lugs (4, 5) in at least two sectors being formed in a breech device equipped with a magazine (6) loaded in parallel so that there are four guide surfaces (7, 8, 9, 10) to limit rotation between the receiver and the breech body, and the breech body (2) has a recessed locking surface (11) for the cartridge at its end. The locking surface of the cartridge has been extended downwardly to form a glide surface (12) passing between the locking lugs (4, 5) so that the rear surface of the cartridge case slides on the glide surface and the locking surface into locking position as the cartridge is ejected from the magazine (6) into the cartridge housing.

L'invention concerne un système de culasse destiné à des armes à feu à verrou. Ce système de culasse comprend un corps de culasse (2) à va-et-vient dans le boîtier (1) et pouvant pivoter en position de verrouillage. Dans sa partie avant, le corps de culasse comprend des tenons de verrouillage (3, 4, 5) situés dans trois secteurs, les tenons de verrouillage (4, 5) dans au moins deux secteurs étant formés dans un système de culasse équipé d'un magasin (6) chargé en parallèle de telle sorte qu'il existe quatre surfaces de guidage (7, 8, 9, 10) pour limiter la rotation entre le boîtier et le corps de culasse, ce dernier comprenant à son extrémité une surface de verrouillage (11) en retrait destinée à la cartouche. La surface de verrouillage de la cartouche est étendue vers le bas pour former une surface de glissement (12) passant entre les tenons de verrouillage (4, 5) de sorte que la surface arrière de la douille de cartouche glisse sur la surface de glissement et la surface de verrouillage jusqu'en position de verrouillage lorsque la cartouche est éjectée du magasin (6) dans le logement de cartouche.

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