Extendable Pistol Slide Member Leverage Mechanism
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Solution Overview
Problem
Many users, including those with weak hand strength, age-related issues, or medical conditions, find it difficult to properly rack the slide on semi-automatic pistols, leading to inefficient operation and sometimes resorting to using revolvers for concealed carry.
Innovation Solution
A pistol slide with an extendable and retractable slide member that provides leverage and a gripping base, allowing users to easily pull the slide back by rotating it laterally or vertically for enhanced grip and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional pistol slide is used, then the structure is simple and compact, but users with weak hand strength or age-related issues find it difficult to rack the slide
Solution Approach 1:
The slide member is designed to be movable between extended and retracted positions, allowing the gripping surface to dynamically adjust to user needs. When extended, it provides additional leverage for racking; when retracted, it maintains a compact profile. This dynamic configuration resolves the contradiction by providing enhanced operability only when needed.
Solution Approach 2:
The slide member extends laterally outward from the slide in a direction perpendicular to the racking motion, adding a new dimensional element to the gripping surface. This lateral extension provides additional leverage points without increasing the length of the slide in the direction of racking motion, thus improving ease of operation without proportionally increasing overall complexity.
2Ease of operation
If the slide member is always extended, then gripping and racking is easier, but the pistol profile becomes larger and less concealable
Solution Approach 1:
The slide member transitions between extended and retracted states based on operational needs. During racking operations, it extends to provide leverage; during normal carry, it retracts to minimize profile. This dynamic behavior allows the pistol to adapt its volume characteristics rather than maintaining a permanently enlarged configuration.
Solution Approach 2:
The slide member can be nested within or alongside the slide body when retracted, similar to a nested doll structure. This allows the extended portion to be stored within the overall pistol envelope when not in use, effectively reducing the volume increase to minimal clearance space rather than full extension dimensions.
3Force
If an extendable slide member is added, then leverage and gripping base are improved, but the device complexity increases
Solution Approach 1:
The slide assembly is segmented into the main slide and the separate slide member that can move independently. This segmentation allows the slide member to be optimized specifically for gripping and leverage functions without complicating the main slide's firing mechanism. Each segment performs its dedicated function with minimal interference from the other.
Solution Approach 2:
The slide member acts as an intermediary element between the user's hand and the slide's racking motion. It provides a specialized gripping interface that translates user input into effective racking force without requiring direct modification of the slide's core mechanical systems, thus adding leverage capability with relatively low complexity increase.
Data Source
AI summary
An extendable slide member on a pistol slide action, providing leverage and a gripping base for a user to pull back or “rack” the slide along guides on a pistol frame, in a longitudinal motion relative to the pistol frame. The slide member facilitating racking the slide when in an extended position the slide member rotates either laterally outwards from a side surface of the slide or vertically upwards from a top surface of the slide, and presents a gripping segment for the user to pull the slide towards the breech end of the pistol.