Angled Full-Height Slide Serrations for Firearm Grip and Stress Reduction
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Solution Overview
Problem
Conventional pistol slide serrations do not maximize gripping surface area while maintaining the structural integrity and operational life of the slide, leading to potential stress fractures and reduced usability.
Innovation Solution
Optimized slide serrations are cut along the full height of the slide at an angle, maximizing thickness in the rail portion, reducing stress concentrations, and providing a larger gripping surface area, which also serves as a weight reduction feature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If slide serrations are made as deep as possible to maximize gripping surface area, then ease of operation is improved, but structural integrity and reliability deteriorate due to stress concentrations and potential fractures
Solution Approach 1:
The serrations are designed with varying depths and angles at different locations along the slide. The cuts are deeper in non-critical areas while maintaining shallower depths near high-stress regions, creating localized quality variations that optimize both grip surface area and structural integrity
Solution Approach 2:
The serration design creates a composite structure where the remaining material between cuts forms strengthening ribs that distribute stress, while the cut portions provide grip surface. This composite arrangement of material and voids optimizes the balance between gripping effectiveness and structural strength
2Ease of operation
If more material is removed to increase gripping surface area, then ease of operation is improved, but weight increases and structural strength deteriorates
Solution Approach 1:
The slide surface is segmented into multiple discrete serration cuts rather than a single large removal. This segmentation allows the remaining material to form multiple strengthening ribs that distribute structural loads, maintaining strength while providing adequate grip surface area through the cumulative effect of multiple cut surfaces
3Ease of operation
If serration cuts are made deeper to maximize purchase area, then ease of operation is improved, but stress concentrations increase leading to fatigue and shock fractures
Solution Approach 1:
The serration design varies multiple parameters including cut depth, cut angle, and spacing between cuts along the slide length. These parameter variations create a gradient structure that optimizes grip surface area in low-stress regions while maintaining material integrity in high-stress regions, thereby reducing overall stress concentrations
Solution Approach 2:
The serrations are cut at angles rather than purely vertically, introducing a dimensional variation that increases gripping surface area without proportionally increasing material removal. The angled cuts create additional grip surfaces while preserving more material thickness compared to perpendicular cuts of the same depth
Data Source
AI summary
A firearm slide and a firearm having a slide has a rail portion along which a slide moves translationally, the slide provides a plurality of serrations. The slide has a height and each serration of the plurality of serrations is cut into the slide along the entire height of the slide. The slide defines a horizontal axis and the plurality of serrations are angled relative to the horizontal axis. The serrations are in groups of serrations separated by one or more unserrated portions of the slide. The serrations being configured to maximize the thickness of the slide portion in the rail portion.