Recoil Spring Mounting Simplifies Handgun Assembly
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Solution Overview
Problem
Prior recoil-spring devices for handguns are complicated and expensive to produce due to the complexity of the recoil-spring eyelet required for mounting the front end of the recoil spring, making them difficult to insert and remove.
Innovation Solution
The recoil-spring device features a front end that abuts a rear contact surface of a contact element on a recoil-spring slide, which is mounted for movement along the recoil-spring rod, allowing for a simple geometric shape that can be easily inserted into a corresponding cylindrical bore in the breech device without an elaborate eyelet, using a contact ring and guiding elements for alignment and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional recoil-spring eyelet is used for mounting the front end of the recoil spring, then the recoil spring can be securely mounted, but the structure becomes complicated and expensive to produce
Solution Approach 1:
The invention extracts the complex recoil-spring eyelet structure from the breech device and replaces it with a simplified mounting solution. The recoil spring is mounted directly on the recoil-spring rod with a simple geometric shape that fits into a corresponding simple bore in the breech device, eliminating the need for an elaborate eyelet structure while maintaining secure mounting.
Solution Approach 2:
Instead of creating a complex eyelet structure to mount the recoil spring, the invention inverts the approach by designing a simple geometric mounting structure on the recoil-spring rod that interfaces with a correspondingly simple bore in the breech device. This reverses the traditional design paradigm and achieves secure mounting through simplicity rather than complexity.
2Reliability
If a complex recoil-spring eyelet is designed, then the recoil spring can be firmly secured, but the installation and removal process becomes difficult
Solution Approach 1:
The invention removes the complex eyelet structure that hindered easy installation and removal. By using a simple geometric shape on the recoil-spring rod that fits into a simple bore, the design allows for straightforward insertion and removal of the recoil-spring device while maintaining secure mounting through the precision of the simplified interface.
3Reliability
If an elaborate recoil-spring eyelet is used, then secure mounting is achieved, but manufacturing costs increase
Solution Approach 1:
The invention extracts the costly elaborate eyelet structure and replaces it with simple geometric shapes that are much easier and cheaper to manufacture. The simple mounting structure on the recoil-spring rod and corresponding simple bore in the breech device reduce manufacturing complexity and cost while maintaining secure mounting through precise, simplified geometry.
Solution Approach 2:
The invention adopts a simpler, more economical mounting structure that can be easily manufactured and, if necessary, replaced. The simple geometric shape and bore design allow for cost-effective production while maintaining the functional reliability of the recoil spring mounting.
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
This design simplifies the production and installation of the recoil-spring device, enabling it to be easily inserted and removed from a handgun, reducing manufacturing costs and complexity while maintaining effective operation.
Implementation Method 1
a recoil spring which is in the form of a spiral spring and the rear end of which abuts a rear stop member on a recoil-spring rod
Implementation Method 2
it converts the kinetic energy of the breech device into potential spring energy that causes the breech device to move forward
Data Source
AI summary
In a recoil-spring device (100) in a handgun equipped with a breech and a recoil spring (110) in the form of a spiral spring, whose rear end abuts a rear stop member (123) on a recoil spring rod (120) and whose front end is mounted for movement along the recoil-spring rod (120) with contraction of the recoil spring (110), support in an uncomplicated recoil-spring eyelet is achieved in that the front end of the recoil spring (110) abuts, at least indirectly, a rear contact surface (132) of a contact element (131) that is mounted for movement along said contact-spring rod (120), while the front contact surface (133) is in contact with an internal surface of the breech of the handgun.


