Trigger Housing Mounting System for Firearm Safety
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Solution Overview
Problem
Bolt-action rifles with pistol grips face inconvenience due to the inaccessible location of the safety selector, which is typically positioned alongside the bolt or on top of the buttstock, making it difficult to access when holding the rifle with a pistol grip, and complicating disassembly of the firearm's components.
Innovation Solution
A trigger housing mounting system that allows for the detachable and lockable attachment of the trigger housing to the receiver, incorporating a safety selector mechanism that can be strategically positioned for easier access and reduced component disassembly, utilizing a sliding T-slot arrangement and secondary retention features to prevent unintentional dismounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the safety selector is positioned alongside the bolt or on top of the buttstock, then the firearm maintains its traditional structure, but the safety selector becomes inaccessible when holding the rifle with a pistol grip
Solution Approach 1:
The trigger housing is separated from the receiver assembly, allowing independent positioning of the safety selector on the trigger housing. This segmentation enables the safety selector to be placed in an accessible location on the pistol grip side without requiring modifications to the traditional receiver-mounted safety selector position.
Solution Approach 2:
The trigger housing serves as an intermediary component between the receiver and the external environment. By mounting the safety selector on the trigger housing rather than directly on the receiver, the system achieves improved accessibility while maintaining a relatively simple mounting structure through the use of mounting slots and retention features.
2Ease of repair
If the trigger housing is permanently attached to the receiver, then the firearm structure is simplified, but disassembly and maintenance of the firing mechanism become difficult
Solution Approach 1:
The mounting system transitions from a static permanent attachment to a dynamic removable connection. The trigger housing can be easily detached from the receiver through the mounting slots and retention features, allowing quick access to the firing mechanism for maintenance while maintaining structural integrity during normal operation.
Solution Approach 2:
The firearm is divided into separable modules with the trigger housing as an independent component. This segmentation allows the trigger housing containing the firing mechanism to be removed from the receiver for maintenance without requiring disassembly of the entire firearm, significantly improving ease of repair.
3Reliability
If the safety selector cross shaft intersects the fire-control group, then the safety mechanism functions correctly, but additional components must be disassembled to access the firing mechanism
Solution Approach 1:
The safety selector cross shaft is extracted from the fire-control group and relocated to the trigger housing. This separation allows the safety mechanism to maintain its blocking function on the trigger while enabling independent removal of the trigger housing for firing mechanism access, eliminating the need to disassemble additional components.
Solution Approach 2:
The trigger housing acts as an intermediary that houses both the safety selector cross shaft and the trigger mechanism. This intermediate structure allows the safety mechanism to function reliably by blocking trigger movement while enabling easy access to the firing mechanism through simple removal of the entire trigger housing assembly.
Data Source
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AI summary
A trigger housing mounting system for a firearm includes a receiver having a mounting slot and cutouts which receive mounting tabs on the trigger housing. The trigger housing is slidable forward and rearward in the receiver between locked and unlocked positions. A spring-biased locking block is movably mounted on the trigger housing. During the mounting process, the locking block is movable between a non-blocking position and a blocking position which prevents removal of the trigger housing from the receiver. A related mounting method is disclosed.