Squeezable Handle Blow Gun for Rapid Multi-BB Firing
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Solution Overview
Problem
Contemporary toy guns capable of rapidly firing hard plastic BB projectiles are often complex, costly, and unreliable, with most blow guns designed to fire only one projectile at a time or with low firing rates, necessitating a simpler, smaller, cheaper, and more reliable design for rapid multi-projectile firing.
Innovation Solution
A blow gun design featuring a hollow ammunition chamber with a breath receiving orifice and a cylindrical barrel that allows for rapid firing of multiple hard plastic BBs using exhaled breath, with a lid to prevent ammunition loss and improve muzzle velocity, and optional features like a tubular mouthpiece and sight alignment for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If contemporary toy guns are designed to rapidly fire multiple BB projectiles, then the firing rate and productivity are improved, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The toy gun is divided into distinct functional modules: a magazine for holding multiple BBs, a trigger mechanism for sequential firing, and a barrel assembly. This segmentation allows each component to perform its specific function independently, enabling rapid multi-projectile firing while keeping the overall design manageable and not excessively complex
Solution Approach 2:
The trigger mechanism is designed to automatically cycle through multiple shots after a single trigger pull, using the energy from one pulling action to sequentially fire multiple BBs. This self-service mechanism eliminates the need for the user to manually operate the firing mechanism multiple times, thereby increasing productivity without proportionally increasing device complexity
2Productivity
If contemporary toy guns are designed to rapidly fire multiple BB projectiles, then the productivity is improved, but the manufacturing cost increases
Solution Approach 1:
The design uses standard, readily available components with common dimensions and materials (such as standard BB sizes, conventional plastic materials, and typical spring mechanisms). By selecting components with standard parameters rather than custom specifications, the manufacturing cost is kept lower while still achieving the desired rapid firing capability
Solution Approach 2:
The design employs inexpensive materials such as plastic for the BBs and body components, and simple metal or plastic springs for the firing mechanism. These materials are chosen for their low cost and ease of replacement, allowing the toy gun to achieve rapid firing functionality without requiring expensive durable materials that would increase manufacturing cost
3Productivity
If blow guns are designed to fire multiple projectiles, then the productivity is improved, but the design complexity increases substantially
Solution Approach 1:
The magazine and firing mechanism are integrated into a unified assembly where the BB storage and firing functions are combined in a single compact unit. This merging eliminates the need for separate mechanisms for holding and firing BBs, thereby enabling multi-projectile capability while minimizing the increase in design complexity
Solution Approach 2:
The trigger mechanism serves multiple functions: it initiates the firing sequence, controls the timing of successive shots, and manages the ejection of spent BBs. This multi-functionality allows the toy gun to fire multiple projectiles without requiring separate dedicated mechanisms for each function, thus improving productivity without substantially increasing design complexity
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 enables rapid and reliable firing of multiple BBs with improved concealability and reduced material costs, while maintaining reliability and ease of use, addressing the complexity and cost issues of existing toy guns.
Implementation Method 1
capable of rapidly firing multiple BB projectiles... using exhaled breath
Data Source
AI summary
A blow gun includes an ammunition chamber having an internal volume that is large enough to hold at least 30 spherical projectiles, for example plastic BBs. The ammunition chamber has a breath receiving orifice for receiving exhaled breath into the ammunition chamber. A barrel obtrudes from the ammunition chamber. The barrel has a cylindrical bore therethrough, that defines an internal diameter that is greater than the spherical projectile diameter but no greater than 1.7 times the spherical projectile diameter. The ammunition chamber includes a resilient handle portion that is squeezable to displace spherical projectiles within the ammunition chamber.