Breach Training Door Assembly with Segmented Crush Prop
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Solution Overview
Problem
Existing breach training structures lack the ability to simulate the use of breaching tools on doors of various sizes and types, and do not allow for the realistic training of breaching techniques such as explosive breaching and shotgun breaching, as they are not designed to accommodate wood or metal door sections that can be sacrificed during training.
Innovation Solution
A breach training door apparatus with a heavy metal base plate, upright posts, a horizontal header, and a pivotal door frame that includes a crush prop to receive door sections of varying widths, allowing for training in breaching techniques using tools between the door and jamb, as well as the use of battering rams, and accommodating explosive breaching and shotgun breaching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed door section is used in prior breach training structures, then the structure is simple, but it cannot accommodate doors of various sizes and types
Solution Approach 1:
The door section is segmented from the door frame structure, allowing it to be removed and replaced independently. The crush prop creates a removable insert configuration where the door section can be exchanged while the frame remains intact.
Solution Approach 2:
The door frame structure is made adjustable and reconfigurable rather than fixed. The crush prop and retaining bands create a dynamic system that can accommodate different door widths and configurations.
2Reliability
If a non-reusable door section is used in training, then training realism is improved, but the training structure cannot be reused multiple times
Solution Approach 1:
The system is divided into a reusable door frame structure and a sacrificial door section insert. The crush prop creates a configuration where only the door section needs to be replaced after training, not the entire structure.
Solution Approach 2:
The door section is designed to be sacrificed and discarded after training exercises, while the door frame structure and crush prop are recovered and reused for subsequent training sessions.
3Strength
If a heavy metal base plate and strong upright posts are used, then the structure can withstand breaching tools and battering rams, but the weight and complexity increase
Solution Approach 1:
The heavy base plate and strong upright posts are pre-positioned and secured before training exercises begin. The structure is prepared in advance to withstand the forces of breaching tools and battering rams without needing to be moved or repositioned.
Solution Approach 2:
The base plate and upright posts are designed with excessive strength beyond what is strictly necessary, providing a safety margin that allows the structure to withstand extreme forces from breaching tools and battering rams during training.
Data Source
AI summary
A breach training door apparatus includes a heavy outer frame supporting a door on hinges, preferably lift-out hinges. The door includes a crush prop to receive a section of a door of metal, wood or other material, and is versatile in allowing breach training by battering rams, breach tools or explosives. Accessories can be attached to the frame to facilitate several different training operations. A screen door can be attached to the frame when desired for training.