Device for emergency deployment of a post office
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Solution Overview
Problem
Current temporary post office structures, such as double-wide trailers, are inefficient due to their size, requiring multiple trucks for transport, extensive setup time, and labor for accessibility structures, and are prone to damage, leading to costly repairs and delays in deployment.
Innovation Solution
A portable post office housed within a single intermodal container with corrugated steel doors and a track-based rack system for p.o. boxes, allowing rapid deployment and minimizing setup time, with a durable corrugated steel exterior and integrated accessibility ramp, and optional power system for electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a double-wide trailer is used for temporary post office deployment, then postal services can be provided in disaster areas, but the structure requires two trucks for transport and extensive assembly time
Solution Approach 1:
The post office structure is divided into modular units that can be independently transported and quickly assembled. The container-based design allows the structure to be segmented into standard shipping container modules that can be stacked and configured flexibly at the deployment site, eliminating the need for complex on-site assembly of large single-unit structures.
Solution Approach 2:
The post office facilities are nested within standardized intermodal containers, which themselves can be nested or stacked during transport. This nesting approach allows multiple functional units (mail sorting, customer service, storage) to be contained within compact container modules that fit together efficiently, reducing both transport requirements and assembly complexity.
2Adaptability or versatility
If a double-wide trailer is used, then postal services can be provided, but flooring 2-3 feet off ground requires construction of landing, stairs, and accessibility ramp
Solution Approach 1:
The container-based design positions the container floor at or near ground level, eliminating the height differential that requires stairs and ramps. The container sits directly on the deployment site surface or on minimal leveling blocks, creating an equipotential surface that provides universal accessibility without additional structural elements.
Solution Approach 2:
The accessibility requirements are extracted from the main structure by using containers that naturally provide ground-level access. The need for separate stairs, landings, and ramps is removed entirely, as the container design inherently satisfies accessibility requirements through its placement strategy.
3Adaptability or versatility
If double-wide trailer is used, then temporary post office can be deployed, but structure requires breaking down into two units for transportation away
Solution Approach 1:
The post office is segmented into standard container modules that are self-contained and can be independently handled. This segmentation allows the entire structure to be loaded onto standard shipping containers or flatbed trailers as complete units, enabling rapid deployment and retrieval without complex disassembly operations.
Solution Approach 2:
The container modules are designed with universal interfaces and standardized dimensions that allow them to be transported by multiple modalities (truck, rail, barge) without modification. This universality enables the same modular units to be rapidly deployed to any location and equally rapidly retrieved and relocated, maximizing deployment productivity.
4Ease of manufacture
If vinyl or aluminum siding is used on double-wide trailer, then construction cost is reduced, but exterior is prone to damage requiring costly repairs
Solution Approach 1:
The container exterior utilizes composite construction with corrugated metal outer skin providing structural strength and durability, combined with insulated paneling that provides thermal performance and impact resistance. This composite material system maintains lower overall cost compared to traditional building construction while significantly improving exterior durability and damage resistance.
Solution Approach 2:
The container design incorporates protective features such as reinforced corners, impact-absorbing materials, and protective coatings applied during manufacturing. These beforehand protective measures cushion the exterior against damage during transport and deployment, reducing the need for costly repairs while maintaining cost-effectiveness.
5Adaptability or versatility
If double-wide trailer is used, then postal services can be provided, but structure is subject to termite damage during storage
Solution Approach 1:
The container structure uses metal framing and composite paneling that are inherently resistant to termite infestation. By replacing traditional wood-based construction materials with termite-resistant composite and metal materials, the structure maintains its integrity during extended storage periods without chemical treatments or special protective measures.
Solution Approach 2:
The container design accepts the temporary nature of disaster relief deployments and uses materials that are durable enough for the intended service life but can be easily replaced or relocated. The termite-resistant construction ensures the structure remains reliable throughout its deployment cycle without requiring long-term durability investments.
Data Source
AI summary
A portable post office contained within an intermodal container is disclosed. Such a structure may include a rack movably secured to a track mounted in the ceiling of said container via a trolley. The rack may be configured to hold a plurality of post office boxes, each box having a lockable door facing the center aisle of the container, and an open end facing the rear of the rack. The rack may be positioned against an interior side wall of the container and secured in place via a locking mechanism to prevent access to the open ends of the post office boxes. An individual may release the locking mechanism and move the rack into the center aisle along the track to access the open ends of the post office boxes. The rack member may then be moved back along the track and re-secured against the side wall.