Rubber Pellet Packaging with Sealing Disc for Gas Slip Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current rubber shot packs experience gas slip due to propellant gas escaping between the cup and the film, leading to reduced firing efficiency and increased scattering, which is not effectively addressed by existing technologies.
Innovation Solution
A rubber shot pack design featuring hard rubber elements arranged in a dense packing surrounded by a plastic film, with at least one disc of matching diameter to the shot cup axially connected to the pack, preventing gas slip and enhancing scattering effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the rubber shot pack uses a shrink tube film surrounding the hard rubber projectiles, then the pack is held together and can be fired, but gas slip occurs between the cup and the film allowing propellant gas to escape and penetrate the pack
Solution Approach 1:
The invention divides the sealing function into two separate components: the shrink tube film that holds the pack together and a separate gas-tight foil layer that prevents gas slip. This segmentation allows each component to perform its specific function effectively without compromising the other.
Solution Approach 2:
The packaging structure uses a composite of multiple materials with different properties: the shrink tube film provides structural integrity and holding force, while the additional gas-tight foil layer provides gas barrier properties. This composite structure resolves the contradiction by combining materials that excel at different functions.
2Stability of the object's composition
If the hard rubber projectiles are arranged in a dense pack surrounded by shrink tubing, then the pack maintains structural integrity, but propellant gas penetrates through the lower opening between individual projectiles causing pre-separation
Solution Approach 1:
The invention extracts the gas barrier function from the structural shrink tube and implements it through a separate gas-tight foil layer. This allows the shrink tube to maintain projectile arrangement while the foil layer specifically addresses gas penetration through the lower opening and between projectiles.
Solution Approach 2:
The gas-tight foil acts as an intermediary barrier between the propellant gas and the hard rubber projectiles. It mediates the interaction by providing a gas-impermeable path that prevents gas from penetrating between projectiles while allowing the structural pack to maintain its arrangement.
3Adaptability or versatility
If gas slip occurs allowing propellant gas to escape between cup and film, then scattering effect increases, but firing efficiency is reduced
Solution Approach 1:
The invention applies different sealing qualities to different parts of the pack structure. The gas-tight foil provides complete gas barrier properties where needed (preventing slip), while the shrink tube maintains structural integrity. This localized quality control allows the system to achieve both controlled scattering and high firing efficiency.
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 solution significantly reduces gas slip and enhances the scattering effect while maintaining uniform speed of hard rubber elements, minimizing the risk of injury and improving firing results.
Implementation Method 1
The packs currently in use consist of five layers of hard rubber projectiles with a hexagonal cross-section, each twisted by 30 degrees and held together by a foil. The film is also made from shrink tubing
Data Source
Figure 1~4
AI summary
The rubber pellet packing (10) useful in fire arm, comprises a pre-determined or approximately pre-determined number of hard rubber elements (11) arranged in the sealed packing and surrounded by a plastic foil (13). The rubber elements are intended for firing as active charge loaded with a powder separated by powder loading. A plate (20) is intended for introduction side arranged opposite to the powder loading. The rubber elements are tightly connected with the rubber pellet packing. The plate has outer diameter corresponding to the dimension of firing cup. The rubber pellet packing (10) useful in fire arm, comprises a pre-determined or approximately pre-determined number of hard rubber elements (11) arranged in sealed packing and surrounded by a plastic foil (13). The rubber elements are intended for firing as active charge loaded with a powder separated by a powder loading. A plate (20) is intended for introduction side arranged opposite to the powder loading. The rubber elements are tightly connected with the rubber pellet packing. The plate has outer diameter corresponding to the dimension of firing cup and is intended on each side of the packing. The plastic foil bounds with the plate, which is placed on the foil and/or which is fastened to the hard rubber elements. The plate has a thickness of 3-6 millimeter and is connected with the foil by an adhesive and/or by ultrasonic welding. The plastic foil is a hose, which shrinks during admission of heat.