Adjustable Locking Lever for Handgun Detent Position
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Solution Overview
Problem
Existing break-open rifles face issues where the breech block or locking mechanism automatically moves into the locking position when the barrel is opened, preventing the weapon from closing properly, and existing locking mechanisms have fixed locking positions that cannot be easily adjusted.
Innovation Solution
A handgun design featuring a locking mechanism with a pivotably mounted locking lever and a detent system that allows the locking position to be easily changed by adjusting the shape of the locking lever, using a latching lever and counter-latch arrangement, enabling the locking position to be adjusted without impairing the locking mechanism's functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed locking pin system is used to hold the locking lever in position, then the locking position is stable, but the locking position cannot be easily changed or adjusted
Solution Approach 1:
The locking mechanism transitions from a fixed locking pin system to a dynamic system where the locking lever can be pivoted to different positions. The latching lever with detent provides stable positioning at selected angles, while allowing easy repositioning by overcoming the spring force and moving to a new detent position, enabling adjustable locking positions without complex mechanisms.
Solution Approach 2:
The locking lever's position parameter (angular orientation) can be changed by pivoting it around its axis. The latching lever provides discrete stable positions through detent engagement, while the compression spring allows continuous adjustment between positions. This enables changing the locking position parameter easily without increasing overall mechanism complexity.
2Adaptability or versatility
If the locking lever is made adjustable to change locking positions, then adaptability improves, but the structural stability and reliability may be compromised
Solution Approach 1:
The locking lever is designed to be dynamically adjustable through pivoting motion while maintaining reliability through the detent-latching mechanism. The compression spring provides controlled movement, and the detent engagement ensures positive, reliable positioning at selected angles, preventing accidental displacement while allowing intentional adjustment.
Solution Approach 2:
The latching lever acts as an intermediary between the adjustable locking lever and the locking housing. It mediates the adjustment process by providing detent positions that ensure reliable engagement, while allowing the locking lever to be repositioned when needed. This intermediary mechanism maintains reliability during adjustment operations.
3Ease of operation
If a simple locking pin system is used, then the device complexity is low, but the locking position is fixed and cannot be adjusted
Solution Approach 1:
The system enhances operational ease by allowing the locking lever to pivot to different positions while the latching lever provides simple detent engagement. The compression spring enables easy movement between positions by simply overcoming the spring force, making adjustment straightforward without complex procedures or tools.
Solution Approach 2:
The locking mechanism is segmented into functional components: the locking lever for position adjustment, the latching lever for stable positioning, the compression spring for controlled movement, and the detent for engagement. This segmentation allows each component to perform its function simply, maintaining ease of operation while enabling adjustability.
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 quick and easy adjustment of the locking position, ensuring the breech block remains in the correct position when the barrel is closed, preventing interference and maintaining the locking mechanism's functionality.
Implementation Method 1
The free front end of the locking lever with the detent can be pressed in a further expedient embodiment by a compression spring in the direction of the counter detent
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a handgun with a receiver (1), a locking lever (4) with a locking lever shaft (8) rotatably mounted in the receiver (1), and a locking mechanism (22, 23, 24) for releasably holding the locking lever (4) in a detent position. To allow for easy adjustment of the detent position of the locking lever, the locking mechanism (22, 23, 24) includes a detent lever (22) pivotally mounted on the locking lever (4) or on the receiver (1) transversely to the axis of rotation of the locking lever shaft (8), with a detent (23) and a corresponding counter-detent (24) for engaging the detent (23).