Repeating Rifle Locking Element for Easy Bolt Removal
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Solution Overview
Problem
Existing locking elements for repeating rifles are not conveniently removable from the receiver, necessitating improvements for easier handling.
Innovation Solution
A locking element with a bolt carrier, bolt handle, and locking lever design that allows for easy operation with the thumb, featuring a groove-shaped recess and ergonomic actuating surface for simplified bolt removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional locking element design is used, then the locking mechanism functions reliably, but the bolt assembly is difficult to remove from the receiver
Solution Approach 1:
The locking element is divided into functionally independent components: a locking lever for unlocking, a bolt handle for manual operation, and a spring element for automatic return. This segmentation allows each component to be optimized for its specific function while maintaining overall system reliability.
Solution Approach 2:
A spring element acts as an intermediary between the locking lever and the bolt handle, providing automatic return motion and reducing the manual effort required. The spring element mediates the interaction between components, enabling reliable locking while facilitating easy removal.
2Reliability
If the bolt assembly is designed for secure locking, then reliability is improved, but the structure becomes more complex
Solution Approach 1:
The locking lever and bolt handle are merged into a single integrated component structure, reducing the number of separate parts while maintaining functional independence. This merging simplifies the overall structure without compromising locking reliability.
Solution Approach 2:
The spring element provides self-service by automatically returning the locking lever to its locked position without requiring manual intervention. This self-service mechanism reduces structural complexity by eliminating the need for additional return-spring mechanisms or manual reset procedures.
3Ease of operation
If manual operation requires two hands, then operational control is improved, but ease of operation deteriorates
Solution Approach 1:
The locking lever is designed with an actuating surface that can be operated in a different dimensional plane than traditional bolt handles. This allows thumb operation from the side rather than requiring hand placement in a conventional manner, enabling single-hand operation while maintaining control.
Solution Approach 2:
The actuating surface is specifically designed with localized ergonomic features optimized for thumb operation. The surface geometry and positioning are tailored to match the anatomy and dexterity of a thumb, enabling precise control with minimal effort while maintaining operational speed.
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 convenient and efficient removal of the bolt assembly from the rifle receiver, enhancing user experience and operational ease.
Implementation Method 1
a spring element by means of which the locking lever can be automatically returned to its starting position
Implementation Method 2
The locking lever is pivotably mounted at the rear end of the sleeve and is pivotally mounted about an axis that is eccentric to the longitudinal axis of the chamber
Data Source
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AI summary
The present invention relates to a locking element (1) for a repeating rifle (2) comprising a bolt carrier (3) having a hollow cylindrical element (12) by means of which the bolt carrier (3) can be inserted into a sleeve (13) of the repeating rifle (2), and a bolt carrier head (11) with a stop surface (15) by means of which the bolt carrier (3) contacts an end face (14) of the sleeve (13) in the locked state of the locking element (1); a locking handle (4) by means of which a locking head (5) of the locking element (1) provided with locking lugs (23) can be unlocked, wherein the locking head (5) and the locking handle (4) are rotatably connected to a control piece (6) arranged in the bolt carrier (3) and which can be pre-tensioned;and a locking lever (7) by means of which a bolt (8) can be actuated, which in the unlocked state of the locking element (1) sits in a bore (20) of the control piece (6), wherein the locking lever (7) is pre-tensioned and comprises a distal end region (35) having an actuating surface (36), which sits in a recess (33) arranged on the outside of the locking carrier head (11).