US 12,235,058 B2
Bolt for a firearm
Elmar Bilgeri, Klagenfurt (AT); and Michael Kriz, Vienna (AT)
Assigned to GLOCK TECHNOLOGY GMBH, Ferlach (AT)
Appl. No. 18/431,685
Filed by GLOCK TECHNOLOGY GMBH, Ferlach (AT)
PCT Filed Jul. 20, 2022, PCT No. PCT/EP2022/070325
§ 371(c)(1), (2) Date Feb. 2, 2024,
PCT Pub. No. WO2023/011921, PCT Pub. Date Feb. 9, 2023.
Claims priority of application No. 21189286 (EP), filed on Aug. 3, 2021.
Prior Publication US 2024/0337455 A1, Oct. 10, 2024
Int. Cl. F41A 15/14 (2006.01)
CPC F41A 15/14 (2013.01) 17 Claims
OG exemplary drawing
 
1. A bolt for a firearm, including an extractor for cartridge cases, comprising:
a cylindrical body, wherein on a side of the cylindrical body nearest a barrel of the firearm is formed a locking portion having a breech face, at least two radially outwardly projecting locking lugs, and a groove-shaped recess extending rearwardly from the breech face;
wherein the groove-shaped recess defines an undercut that is configured to receive the extractor and a leaf spring; the groove-shaped recess is laterally open at least partially on one side tangentially to a circumferential direction, via an insertion portion, and merges laterally and/or rearwardly into the undercut;
the extractor, which when installed with the cylindrical body has a first lever arm on a barrel side of the cylindrical body, the first lever arm including an inwardly protruding, hook-shaped extractor claw; and, in a central portion of the extractor, has an inwardly-projecting bearing protrusion and a second lever arm including a rearwardly-projecting spring bearing portion that is configured to be mounted on the cylindrical body so as to be pivotable about an extractor axis, and to interact with the leaf spring to pretension the extractor;
wherein the bearing protrusion is designed to be hook-shaped so as to abut against the extractor axis when installed, and defines a rearwardly-opening bearing opening, and includes a contacting surface on a barrel side of the bearing protrusion; and
the cylindrical body further defines a cavity for receiving the bearing protrusion relative to an imaginary plane of the recess in a region of the extractor axis.