Firearm Movable Cheek Riser with Telescopic Stock
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional adjustable cheek risers for firearms require removal or height adjustment when adjusting the length of pull, affecting the cheek riser's position.
Innovation Solution
A movable cheek riser system where the butt portion is telescopically connected to the rifle stock, allowing independent adjustment of the length of pull without altering the cheek riser's height, facilitated by a pivoting mechanism with curved posts and a release button for height adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cheek riser is made adjustable to accommodate different sight heights and user preferences, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The cheek riser is designed with a dynamic adjustment mechanism that allows it to pivot between elevated and lowered positions. The pivoting connection between the cheek riser and butt portion enables height adjustment while maintaining structural integrity, resolving the contradiction between adaptability and complexity through controlled mobility rather than fixed alternatives
Solution Approach 2:
The stock is divided into separate functional segments: the butt portion with telescopic adjustment for length of pull, and the cheek riser with pivoting adjustment for height. This segmentation allows independent adjustment of each function without interfering with the other, reducing overall system complexity while maintaining both adaptabilities
2Adaptability or versatility
If the length of pull is adjusted using telescopic butt portion, then the adaptability is improved, but the cheek riser position is affected and requires removal or re-adjustment
Solution Approach 1:
The stock assembly is segmented into independent functional zones: the telescopic butt portion for length of pull adjustment and the pivoting cheek riser for height adjustment. This segmentation isolates the adjustment mechanisms so that changing the length of pull does not disrupt the cheek riser position, eliminating the need for re-adjustment or removal
Solution Approach 2:
The pivoting connection acts as an intermediary mechanism between the telescopic butt portion and the cheek riser. This intermediary allows the cheek riser to maintain its height setting while accommodating the length changes from butt portion telescoping, decoupling the two adjustment functions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables seamless adjustment of the length of pull without affecting the cheek riser's height, providing a versatile and compact firearm design with multiple height settings.
Implementation Method 1
The cheek riser may include a downwardly-depending post received in a post bore defined in the stock body, wherein the post is curved such that a pivoting motion of the stock is facilitated.
Implementation Method 2
a stock butt portion telescopically connected to the rear extending portion, the butt portion being movable between a retracted position and an extended position
Data Source
AI summary
A firearm with movable cheek riser is a rifle stock having a stock body having a facility for receiving a rifle action and a rear extending portion, a stock butt portion telescopically connected to the rear extending portion, the butt portion being movable between a retracted position and an extended position, a cheek riser having a rear portion connected to the butt portion and a front portion connected to the stock body, and the cheek riser being movable between an elevated position and a lower position. The cheek riser may be pivotally connected to the butt portion. The cheek riser may include a downwardly-depending post received in a post bore defined in the stock body, wherein the post is curved such that a pivoting motion of the stock is facilitated. The invention may be a rifle including the rifle stock receiving a barreled rifle action.