Monolithic Foam Pouch for Firearm Magazine Retention
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Solution Overview
Problem
Existing pouch designs for carrying firearm magazines are labor-intensive to manufacture and heavy, reducing the payload capacity due to the need for numerous individual parts and excessive weight.
Innovation Solution
A pouch design featuring longitudinal and transverse walls and a bottom made from a single piece of waterproof material, with elements for attachment that can be partially arranged in the inner cavity, using polymeric materials and elastic pads for secure fastening, reducing the number of sewing operations and weight by up to −2.5 times compared to previous designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple separate parts are used to form the pouch housing, then the structural strength and reliability are improved, but the device complexity and manufacturing labor increase significantly
Solution Approach 1:
The patent merges multiple separate parts (front wall, rear wall, two side walls, and bottom) into a single integrated housing formed from one piece of rigid foam material. This eliminates the need for assembling multiple components while maintaining structural integrity through the monolithic construction, directly resolving the contradiction between structural strength and device complexity.
2Reliability
If multiple separate parts are used to form the pouch housing, then the structural reliability is improved, but the manufacturing time and labor intensity increase
Solution Approach 1:
The housing is formed as a single integrated piece from rigid foam material, eliminating multiple assembly steps and connections. This monolithic construction approach maintains structural reliability while dramatically improving manufacturing productivity by reducing the number of operations required to produce the pouch.
Solution Approach 2:
The patent changes the material state from assembled components to a monolithic foam structure. By utilizing the inherent properties of rigid foam material that can be molded into complex three-dimensional shapes, the design achieves high structural reliability through material homogeneity and eliminates assembly-related reliability issues while speeding up production.
3Strength
If heavy metal parts are used in the pouch design, then the strength and durability are improved, but the weight increases reducing payload capacity
Solution Approach 1:
The patent changes the material parameter from heavy metal to lightweight rigid foam. The foam material provides sufficient structural strength for magazine containment while dramatically reducing weight, thereby increasing payload capacity. The strength requirement is met through the monolithic construction and appropriate foam density selection rather than heavy materials.
Solution Approach 2:
The housing is constructed from composite rigid foam material that combines strength and lightweight properties. This composite material approach replaces traditional heavy metal components while maintaining structural integrity, resolving the contradiction between strength and weight.
4Reliability
If numerous individual parts are used in the pouch construction, then the reliability and security of magazine retention are improved, but the weight increases and payload capacity decreases
Solution Approach 1:
The patent combines multiple retention elements (front wall, rear wall, side walls, bottom) into a single integrated housing structure. The magazine retention reliability is maintained through the geometric configuration and surface features of the monolithic foam housing rather than through multiple separate fastening parts, thereby reducing weight while preserving reliability.
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 simplifies manufacturing, reduces weight, and enhances payload capacity, allowing for more reliable and efficient carrying of firearm magazines, with the automatic weapon pouch weighing 34g and the pistol pouch weighing 18g, while providing a non-slip layer for secure fixation.
Implementation Method 1
All-around the housing, there is a round elastic rubber band made with the possibility of tightening/stretching. The above said band is inserted and pulled through the front and rear spatial slots... so that the round elastic rubber band tightens the front wall, the rear wall, and the two side walls together
Data Source
AI summary
The invention relates to the field of weapons, especially a device for wearing or carrying ammunition (magazines with cartridges or empty magazines) for small arms such as pistols, rifles, automatic rifles, automatic weapon, light machine guns, etc., and to design pouches formed open-faced to dispose magazines for cartridges. The pouch includes longitudinal and transverse walls and a waterproof material bottom and configured to form the open-faced pouch housing. Also, elements for attaching the housing to ammunition, the elements including at least one band fixed in the openings of the housing and ammunition. At least one of the longitudinal walls, the transverse walls and the bottom of the housing are formed solid-drawn (from a single piece of material), while the elements for attaching the firearm magazines pouch housing to the ammunition and also the elements for fastening a pistol magazine pouch housing on the above said firearm magazines pouch housing are made with the possibility of being partially arranged in the inner cavity of the above said firearm magazines pouch housing or the above said pistol magazine pouch housing.