Modular Projectile Arresting Device With V-Shaped Deflector
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Solution Overview
Problem
Existing projectile arresting devices for outdoor shooting ranges are either too heavy and immobile or unsuitable for outdoor use due to deformation under projectile penetration, and they lack flexibility in design and installation.
Innovation Solution
A modular projectile arresting device with a foundation frame, partition walls, and a pressure-resistant wall comprising hollow sections made of polymeric material, which allows for easy replacement and maintenance, and a V-shaped profile to deflect projectiles, ensuring they are captured between the sections without deforming the material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a massive rubber front layer is used in outdoor projectile arresting devices, then the device can resist projectile penetration, but the rubber material breaks and deforms during penetration
Solution Approach 1:
The front layer is divided into multiple horizontal segments that can move independently relative to each other. This segmentation allows the layer to accommodate projectile penetration without breaking, as each segment can deform locally while maintaining overall structural integrity. The segments are connected by vertical webbing that provides tension strength while allowing horizontal movement.
Solution Approach 2:
The front layer transitions from a static massive rubber structure to a dynamic multi-segment system that can move and deform during penetration. The horizontal segments can shift position and the vertical webbing can stretch, allowing the structure to adapt to the penetrating projectile without failing. This dynamic behavior maintains reliability while providing the necessary penetration resistance.
2Reliability
If outdoor projectile arresting devices are made large and heavy to ensure security, then they can effectively stop projectiles, but they cannot be moved to another area
Solution Approach 1:
The arresting device is divided into modular components including the front layer with horizontal segments, vertical webbing, and supporting structures that can be independently assembled and disassembled. This modularity allows the device to be taken apart and relocated to different areas while maintaining its projectile stopping capability when assembled.
Solution Approach 2:
The device allows for adjustment of key parameters such as the number of horizontal segments, the spacing between segments, the height of vertical webbing, and the dimensions of supporting structures. These parameters can be modified to optimize the device for different shooting ranges and security requirements, and the adjustable nature facilitates both performance and mobility.
3Device complexity
If existing projectile arresting devices are designed for indoor use with low height, then they can be compact, but they are not suitable for outdoor use due to longer firing distances
Solution Approach 1:
The front layer uses a dynamic multi-segment design that can extend and deform during outdoor penetration events. The horizontal segments can move apart and the vertical webbing can stretch, allowing the effective stopping distance to increase for outdoor shooting while maintaining a compact form when not in use. This dynamic expansion capability adapts the device to outdoor distances without permanently increasing its compact size.
Solution Approach 2:
The device allows for adjustment of critical parameters including the number of horizontal segments, segment spacing, webbing height, and supporting structure dimensions. These parameters can be optimized for outdoor use by increasing values to provide sufficient stopping distance, while the modular nature allows the same basic structure to remain relatively compact compared to traditional outdoor arresting devices.
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 device is flexible, easy to rearrange, and maintain, with reduced material consumption and cost, effectively capturing projectiles while maintaining structural integrity and preventing environmental contamination from moisture and harmful substances.
Implementation Method 1
a pressure resistant wall (19) comprising a number of closely situated hollow sections (15) connected to the front edges (10b) of the partition walls (9)... effectively capturing projects while maintaining structural integrity
Implementation Method 2
The front portion of the partition walls (9) further comprises a V-shaped profile (12) of ballistic material, wherein the tip of the profile (12a) is adjacent to the pressure resistant wall (19)
Data Source
Figure 1A
Figure 1B~1C
Figure 2
AI summary
The present invention relates to a projectile arresting device (1) comprising a foundation (3) constituting a floor (7) and a rear wall (5) of the projectile arresting device. It further comprises partition walls (9) extending in a direction substantially perpendicular to the rear wall (5), wherein the partition walls comprises a rear edge (10a) connected to the foundation (3), and a front edge (10b). Stopping materials (1 1 ) is arranged between the partition walls (9). A stopping material retaining layer (S) is arranged between the partition walls, and a pressure resistant wall (19) comprising a number of closely situated hollow sections (15) are connected to the front edges (10b) of the partition walls. The pressure resistant wall (19) further comprises a rear surface connected to the stopping material retaining layer (S) and a front surface. The front edge (10b) of each partition wall comprises a V-shaped profile of ballistic material, wherein a tip (12a) of the profile is adjacent to the pressure resistant wall. The invention also relates to a projectile arresting arrangement.