Detachable Cheek Riser With Snap-Fit Retention Tabs
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Solution Overview
Problem
Existing detachable cheek risers for firearms require tools for installation and removal, which is impractical in combat situations and does not allow for easy adjustment or removal.
Innovation Solution
A detachable cheek riser with an inverted 'U' or 'V' shape body featuring retention tabs that fit into recesses on the firearm stock or brace, allowing tool-free attachment and removal, and accommodating the charging handle's movement without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a detachable cheek riser is used, then ease of removal is improved, but installation complexity worsens due to requiring tools
Solution Approach 1:
The cheek riser is designed with retention tabs that automatically engage with recesses in the stock when the riser is placed on the stock. The tabs have a geometry that allows them to snap into the recesses without requiring any tools, making the installation process as simple as the removal process. This self-service mechanism eliminates the tool requirement while maintaining secure attachment.
Solution Approach 2:
The retention system is segmented into discrete retention tabs on the cheek riser and corresponding recesses in the stock. This segmentation allows the cheek riser to be composed of independent attachment points that can engage separately, enabling tool-free installation through a simple snap-fit mechanism while maintaining secure attachment.
2Reliability
If retention tabs are added to the cheek riser, then reliability of attachment is improved, but device complexity worsens
Solution Approach 1:
The retention system is divided into multiple discrete tabs positioned at different locations on the cheek riser. This segmentation provides multiple independent attachment points that engage with corresponding recesses in the stock, distributing the attachment load and improving overall reliability without requiring a complex single-piece retention mechanism.
Solution Approach 2:
The retention function is extracted as separate tab elements from the main body of the cheek riser. These tabs are designed as distinct features that can be optimized for their specific retention function while keeping the rest of the cheek riser simple. This extraction allows the retention mechanism to be added without significantly increasing the overall device complexity.
Data Source
AI summary
A detachable monolithic cheek riser for a firearm stock or brace comprises a top portion having an inside surface that is shaped to match the shape of the top of the stock or brace, and includes side portions that extend downward from the top such that each side portion rests on opposite sides of the stock or brace. At the bottom of the sides of the cheek riser there are retention tabs that extend inward, toward the opposite side, and which are configured to fit into recesses on the sides of the stock or brace when the check riser is attached to the stock or brace. No tool is required to install or remove the cheek riser, as a result.