Drop-in Adjustable Trigger Assembly with Camming Safety Linkage

Abstract

A drop-in adjustable trigger assembly has a camming safety linkage to selectively move and engage a bolt sear to positively prevent movement of the bolt sear. The drop-in trigger assembly housing carries a pivoting bolt sear engagement member which is connected to a sear safety linkage. The housing has a sear safety linkage slot defined therein which guides the pivoting sear safety linkage in response to actuation of an upwardly projecting thumb safety lever's actuation. A trigger bracket preferably carries a removable, reversible trigger shoe and is configured to pivot within the housing about a pivot point within the housing, and the trigger bracket carries an adjustable rocker having (preferably) a first stage movement adjustment and a second stage length adjustment. The pivoting safety mechanism's safety linkage pivots rearwardly to push upon or cam the bolt sear upwardly, thus disengaging the bolt sear from the trigger sear.

Description

[0001]The present application claims the benefit of prior Provisional Application No. 61 / 867,049, filed Aug. 17, 2013, the disclosure of which is hereby incorporated herein in its entirety by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to firearms and more particularly to trigger mechanisms for use in rifles and other manually actuable instruments.[0004]2. Discussion of the Prior Art[0005]Rifle marksmanship has been continuously developing over the last few hundred years, and now refinements in materials and manufacturing processes have made increasingly accurate aimed fire possible. These refinements have made previously ignored ergonomic or human factors more significant as sources of error.[0006]The term “rifle” as used here, means a projectile controlling instrument or weapon configured to aim and propel or shoot a projectile, and triggers or firearm actuator systems are discussed principally with reference to their use...

AI Technical Summary

Benefits of technology

The drop-in adjustable trigger assembly described in this patent can improve the feel and customization options of a rifle's trigger activation. It provides user adjustable controls for weight, movement range, break weight, and engagement length, each optimized for accurate shooting. The trigger assembly is compact and durable, with a sear safety linkage and bolt sear disengaged when the trigger is pulled, ensuring safe and reliable use. The adjustable transverse rocker member and rocker set screw allow for customization of the trigger pull, and the mechanical advantage decreased as the rocker moves down, improving the trigger's weight and movement range.

Problems solved by technology

However, safety mechanisms may interfere with trigger feel, trigger pull or other factors which directly and adversely affect the shooter's ability to precisely control trigger actuation.

Often, a marksman or precision shooter will struggle to adjust the performance on a trigger to maximize that specific shooter's ability to precisely control trigger actuation or “break”.

Product liability lawsuits have exacerbated the shooter's ergonomics problems by forcing most manufacturers to design trigger assemblies which are nearly impossible for the shooter or user to tune or adjust.

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