Wad Splaying Tool Mandrel for Shotgun Shell Reloading
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Solution Overview
Problem
During shotgun shell reloading, bent wad fingers often snag and get crushed by the ram, leading to improper seating and compromised shot flight, as existing methods for splaying fingers are time-consuming and imprecise.
Innovation Solution
A wad splaying tool with mandrels that splay wad fingers outwardly before loading, ensuring the fingers do not snag during insertion and maintain the correct shape for proper seating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual finger insertion method is used to splay wad fingers, then finger snagging risk is reduced, but operator fatigue increases and time consumption increases
Solution Approach 1:
The wad fingers splay themselves automatically when the wad is compressed during the seating process. The resilient fingers naturally diverge outward as the wad body is compressed by the ram, eliminating the need for manual intervention to splay the fingers before loading.
Solution Approach 2:
The wad is pre-formed with resilient fingers that are designed to splay outward automatically upon compression. This preliminary design feature ensures that the fingers are properly positioned for seating without requiring separate manual splaying actions.
2Reliability
If manual finger insertion method is used to splay wad fingers, then finger snagging risk is reduced, but operator fatigue increases
Solution Approach 1:
The wad fingers splay themselves automatically when the wad is compressed during the seating process. The resilient fingers naturally diverge outward as the wad body is compressed by the ram, eliminating the need for manual intervention to splay the fingers before loading.
3Productivity
If wad fingers are not splayed, then loading process is simpler, but finger snagging occurs causing improper seating
Solution Approach 1:
The wad fingers splay themselves automatically when the wad is compressed during the seating process. The resilient fingers naturally diverge outward as the wad body is compressed by the ram, eliminating the need for manual intervention to splay the fingers before loading.
Solution Approach 2:
The wad is pre-formed with resilient fingers that are designed to splay outward automatically upon compression. This preliminary design feature ensures that the fingers are properly positioned for seating without requiring separate manual splaying actions.
4Manufacturing precision
If wad fingers are manually splayed, then seating accuracy improves, but operation complexity increases
Solution Approach 1:
The wad fingers splay themselves automatically when the wad is compressed during the seating process. The resilient fingers naturally diverge outward as the wad body is compressed by the ram, eliminating the need for manual intervention to splay the fingers before loading.
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 tool effectively prevents finger snagging and ensures proper seating of wads, enhancing shot loading efficiency and consistency by evenly spreading wad fingers, reducing operator fatigue and improving shot velocity.
Implementation Method 1
As the wad body is compressed, the resilient fingers automatically splay outward
Data Source
AI summary
Fingers of a wad are splayed, prior to loading the wad into a shotgun shell, by sliding the wad on a wad splaying tool. The tool has mandrel with a free end, a shank, a frusto-conical transition extending from the free end to the shank, and a supported end. The diameter of the free end is less than the diameter of the wad. The transition's diameter at the shank (i.e., where the transition meets the shank) exceeds the diameter of the wad.