Firearm Chamber Check Aid with Reference Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current firearms lack a reliable and safe method for checking the chamber loading status without risking accidental ejection or double loading, which can lead to operational failures and safety hazards, especially in high-pressure situations.
Innovation Solution
The implementation of a retractable through-loading system with reference elements that allow for unhindered movement and secure chamber checks, ensuring the weapon is not in a dismantling position during inspection, and providing visual and tactile feedback without requiring the weapon to be secured.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the bolt is opened wide to check the chamber, then the cartridge becomes visible for direct inspection, but the cartridge may be completely ejected or jammed, causing operational failure
Solution Approach 1:
The patent applies preliminary action by providing reference elements that indicate the correct position for chamber inspection before the inspection is performed. The reference elements guide the shooter to open the bolt to the precise degree needed to see the cartridge without opening it so wide that the cartridge is ejected or jammed.
2Reliability
If the bolt is opened only slightly to avoid ejection, then the cartridge remains in place, but the cartridge may not be fully visible for accurate inspection
Solution Approach 1:
The reference elements serve as an intermediary between the bolt opening mechanism and the cartridge. They provide visual feedback that mediates the relationship between bolt opening distance and cartridge visibility, allowing the shooter to achieve the precise degree of opening needed without guessing or risking cartridge ejection.
3Reliability
If a safety lever is used to limit bolt recoil distance, then the chamber check can be performed safely, but additional mechanisms are required increasing device complexity
Solution Approach 1:
The reference elements enable the chamber check mechanism to be self-regulating. The shooter can visually determine the correct bolt opening position using the reference elements as guides, eliminating the need for external safety levers or limiting mechanisms. The system serves itself through visual feedback rather than requiring additional mechanical constraints.
4Reliability
If the weapon is secured with a safety lever engaged during chamber check, then accidental discharge is prevented, but the loading lever cannot be moved back fully to check loading status
Solution Approach 1:
The reference elements provide preliminary visual guidance that allows the shooter to determine loading status without needing to move the loading lever to its extreme position. By using the reference elements to gauge bolt opening distance, the shooter can perform chamber checks while the safety remains engaged, avoiding the need to disengage safety to check loading status.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a firearm with one or more retractable loading system elements, namely at least one from a loading device, a bolt carrier, or a slide. These elements each follow a trajectory during retraction. Furthermore, the firearm comprises one or more reference elements that indicate a predetermined position of the loading system element(s) along their respective trajectories, at which the chamber is opened such that a cartridge, if present in the chamber, can be seen and/or felt, but is not ejected.The predetermined position of the loading system element(s) is spaced away from possible positions for disassembling the firearm, and the one or more reference elements are designed in such a way that they ensure unrestricted movement of the one or more loading system elements along their respective trajectories in both the secured and unsecured states of the firearm.