Double Stack Magazine Separator Rod Design
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Solution Overview
Problem
Conventional double stack magazines suffer from reduced reliability due to jamming issues, misalignment of cartridges, and slow feeding speeds, especially when exposed to dust or debris, and require additional spring pressure to function effectively.
Innovation Solution
A double stack magazine design featuring a tubular body with a separating rod and a coil spring that maintains two discrete columns of cartridges, preventing rim lock and ensuring proper alignment, along with a follower and spring plate configuration that reduces friction and enhances feeding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a double stack magazine design is used to increase capacity, then the magazine capacity is improved, but the reliability deteriorates due to jamming issues and misalignment
Solution Approach 1:
The magazine is divided into two separate feed lips (left and right) that independently guide cartridges from separate columns. This segmentation allows each column to feed independently, preventing the jamming issues that occur when cartridges from merged columns interfere with each other during the feeding process.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of separated feed lips that act as mediators between the two cartridge columns and the chamber. These feed lips prevent direct contact and interference between cartridges from different columns, eliminating the misalignment and jamming problems while maintaining double-stack capacity.
2Force
If additional spring pressure is applied to feed cartridges through the taper, then the feeding force is improved, but the device complexity and risk of malfunction increase
Solution Approach 1:
The patent extracts and eliminates the problematic magazine taper component that required additional spring pressure. By removing the taper and using parallel feed lips instead, the design reduces the feeding force requirement and eliminates the complexity and malfunction risks associated with high-pressure spring mechanisms.
3Quantity of substance
If a double stack magazine is used to increase capacity, then the magazine capacity is improved, but the susceptibility to misalignment and jamming increases
Solution Approach 1:
The magazine is divided into two separate feed lips (left and right) that independently guide cartridges from separate columns. This segmentation allows each column to feed independently, preventing the jamming issues that occur when cartridges from merged columns interfere with each other during the feeding process.
Solution Approach 2:
Each feed lip is designed with specific local geometry optimized for its designated column, creating localized feeding paths that prevent interference. The left feed lip handles the left column while the right feed lip handles the right column, with each lip's geometry tailored to guide its specific column without affecting the other.
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 significantly increases the magazine's capacity while minimizing jamming risks and maintaining reliability, even when exposed to environmental factors, by ensuring proper cartridge alignment and reducing friction during the feeding process.
Implementation Method 1
a spring within the passage having a first end contacting the floor plate, and having an opposed second end contacting and biasing the follower toward the upper end of the body
Implementation Method 2
an elongated separator element within the passage
Implementation Method 3
a set of feed lips which stops the vertical motion of the cartridges out of the magazine but allows one cartridge at a time to be pushed forward (stripped) out of the feed lips
Data Source
AI summary
Double stack magazines have a tubular body defining an elongated passage and a lower and upper end, a floor plate element connected to the lower end, an elongated separator element within the passage, a follower defining an aperture receiving the separator element and movable within the elongated passage, a spring within the passage having a first end contacting the floor plate, and having an opposed second end contacting and biasing the follower toward the upper end of the body. The separator may be a rod spaced apart from the body surfaces. The spring may be spaced apart from the separator element. The spring may be a coil spring having multiple winds, each encompassing the separator element. The separator element may be medially located in the body. The separator element may be positioned to define first and second stack passages between the left and right side walls and the separator element.