Firearm Slide-Stock Locking Bolt Mechanism
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Solution Overview
Problem
Existing firearms require complex and risky dismantling and assembly operations, often necessitating synchronized hand use and specific skill, with a risk of accidental injury due to recoil forces.
Innovation Solution
A semi-automatic firearm design featuring a novel bolt structure that allows for simplified and safer dismantling and assembly by locking the slide to the stock through a combination of translation and rotation mechanisms, using inclined surfaces and unique geometries to facilitate controlled movement and automatic locking, reducing user effort and risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional bolt locking system is used to keep the slide connected to the stock, then the firearm remains securely locked during firing, but the dismantling and assembly operations become complex and risky, requiring synchronized hand use and particular skill
Solution Approach 1:
The bolt is designed to change its functional state dynamically: during firing it provides strong lateral locking forces to keep the slide connected to the stock, while during dismantling/assembly it can be rotated 90 degrees to disengage from the slide, allowing safe extraction. This dynamic transformation resolves the contradiction between maintaining secure locking during operation and enabling easy dismantling.
Solution Approach 2:
The bolt transitions from a lateral locking orientation (perpendicular to the slide's longitudinal axis) to a longitudinal orientation (parallel to the slide's axis) by rotating 90 degrees. This dimensional change allows the bolt to switch between providing lateral locking forces and being extractable along the longitudinal axis, simultaneously achieving secure locking during firing and easy dismantling.
2Ease of operation
If the bolt is designed to allow easy extraction, then dismantling becomes simpler, but the locking mechanism may become less reliable during firing
Solution Approach 1:
The bolt's locking reliability is dynamically adjusted through its rotational position. When in the locked position (perpendicular to slide axis), it provides maximum lateral locking force. When rotated 90 degrees to the extraction position (parallel to slide axis), it disengages from the slide's locking surfaces, enabling easy extraction without compromising firing reliability.
Solution Approach 2:
The bolt's function is segmented into two distinct operational modes: a locking mode where it provides lateral restraint forces to keep the slide connected to the stock during firing, and an extraction mode where it can be rotated and removed along the longitudinal axis. This functional segmentation allows easy dismantling without sacrificing locking reliability during operation.
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
The design simplifies and safeguards the dismantling and assembly processes by ensuring the slide is securely locked and automatically released, eliminating the need for precise hand coordination and minimizing the risk of injury, while maintaining the firearm's readiness for firing.
Implementation Method 1
a recoil spring (30) acting on an engagement end (350) of said spring holder (35), said recoil spring (30) being suitable for moving said slide (3) along said longitudinal axis (X-X)
Data Source
Figure 1
Figure 1a~1b
Figure 1c
AI summary
A firearm (1) comprising a stock (2) and a slide (3) and a bolt (50) suitable to reciprocally lock them. Firearm wherein the slide (3) comprises a barrel (31), a spring and a spring-holder (35) suitable to act on the bolt (50). The bolt (50) comprises a spring-holder seat (500) which acts in conjunction with an engagement end (350) of the spring-holder (35). The spring-holder seat (500) comprises a support surface (501), a translation surface (502) which permits the translation of the bolt (50) acting in conjunction with said engagement end (350).