Firearm actuation system

Inactive Publication Date: 2013-05-16
SCHWEIZ IND GESELLSCHAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes an actuation system for firearms that includes a bolt carrier assembly, a hammer assembly, an auto sear assembly, and a linkage assembly. The bolt carrier assembly is designed to be cyclically longitudinally displaced during operation of the firearm. The linkage assembly connects the bolt carrier assembly to the auto sear assembly and is also designed to be cyclically longitudinally displaced. The linkage assembly can be within an upper receiver assembly or releasably engage a lower receiver assembly. The hammer assembly is designed to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in a cocked position and the cyclical releasing of the hammer assembly during operation of the firearm. The technical effects of this system include improved trigger control, reduced hammer wear, and improved firearm performance.

Problems solved by technology

Unfortunately, the standard AR platform firearm uses a bolt carrier assembly to directly actuate the auto sear, resulting in the bolt carrier assembly cycling into and out of the stock assembly during operation.

Method used

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  • Firearm actuation system
  • Firearm actuation system
  • Firearm actuation system

Examples

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Embodiment Construction

[0022]Referring to FIGS. 1-3, there is shown firearm 10. Firearm 10 may include upper receiver assembly 12 and lower receiver assembly 14. Upper receiver assembly 12 may be configured to releasably engage lower receiver assembly 14. An example of lower receiver assembly 14 may include but is not limited to an AR platform lower receiver assembly.

[0023]Upper receiver assembly 12 may include barrel assembly 16, gas block assembly 18, gas piston system 20, charging handle 22, bolt carrier assembly 24, and spring assembly 26 for biasing bolt carrier assembly 24 in the direction of arrow 28 to chamber a bullet (not shown) within chamber 30.

[0024]Lower receiver assembly 14 may include trigger assembly 32, disconnector assembly 34, grip assembly 36, hammer assembly 38, fire selector switch 40 (e.g., to select between semi-automatic operation, fully-automatic operation, and safety), and auto sear assembly 42.

[0025]Referring also to FIGS. 4R, 4L, 5R &5L and when fire selector switch 40 is pos...

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Abstract

An actuation system includes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round. A hammer assembly is configured for striking the firing pin of the bolt carrier assembly. An auto sear assembly is configured to actuate the hammer assembly during operation of the firearm. A linkage assembly is configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.

Description

RELATED APPLICATION(S)[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 560,435, filed on 16 Nov. 2011, the contents of which are herein incorporated by reference.TECHNICAL FIELD [0002]This disclosure relates to firearms and, more particularly, to fully automatic firearms.BACKGROUND [0003]As is known in the art, firearms are available in various configurations such as semiautomatic fire, fully automatic fire, and select fire. As their name implies, semiautomatic firearms may fire a single round each time the trigger is depressed. Fully automatic firearms may repeatedly fire rounds whenever the trigger is depressed and held in a depressed position. And select fire firearms may fire a defined quantity of rounds (e.g. three rounds) each time the trigger is depressed.[0004]Firearms often employee some form of auto sear to accomplish select fire and fully automatic operation. For example, during select fire and fully automatic operation, an auto sear may be...

Claims

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Application Information

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IPC IPC(8): F41A19/06
CPCF41A19/06F41A19/46F41A19/44F41A3/26
InventorHIRT, ROBERT
OwnerSCHWEIZ IND GESELLSCHAFT