Collapsible Self-Supporting Cargo Frame for Enclosed Rotorcraft Transport

Solution Overview

Problem

Existing cargo transport devices for rotorcraft lack a self-supporting inner cargo storage area that is easily accessible for loading and unloading, and do not provide a closed internal space for safe transport of human cargo without prior instruction or special safety equipment.

Innovation Solution

A collapsible self-supporting cargo transport device with a skeletal frame, collapsible platform support structure, and collapsible spreading structure, equipped with a telescopic rod and tensioning cables, allowing easy attachment to a rotorcraft and providing a secure, enclosed space for cargo transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing cargo transport devices are used, then they can be attached to rotorcraft, but they lack a self-supporting inner cargo storage area that is easily accessible for loading and unloading

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The device is divided into distinct functional segments: a self-supporting skeletal frame forming an enclosed cargo storage area, collapsible platform support structures for access, and separate cargo securing means. This segmentation allows the cargo storage area to be self-supporting and accessible while keeping each component's complexity manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The platform support structures are designed to be collapsible, allowing the device to transition between an operational state with accessible platforms for loading/unloading and a collapsed state for compact storage. This dynamic feature provides ease of operation during cargo operations while reducing complexity in storage mode.

Inventive Principle:
Principle #15Dynamics

2Reliability

If existing cargo transport devices are used, then they can transport cargo, but they do not provide a closed internal space for safe transport of human cargo without prior instruction or special safety equipment

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The skeletal frame is designed as a self-supporting enclosed structure that forms a closed internal space, separating the cargo storage function from the support functions. This enclosed space provides inherent safety for human cargo without requiring additional complex safety equipment or extensive training.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The self-supporting skeletal frame inherently provides structural integrity and safety without requiring external support structures or complex safety mechanisms. The device serves its own safety needs through its enclosed design, eliminating the need for additional safety equipment that would increase complexity.

Inventive Principle:
Principle #25Self-service

3Volume of moving object

If the transport device is designed to be collapsible for storage, then it can accommodate storage constraints, but it must maintain structural integrity during operation

Engineering Contradiction:
Core Design Contradiction:
Volume of moving objectVSStrength

Solution Approach 1:

The platform support structures are designed to be collapsible, allowing the device to transition between an operational state with extended platforms and a collapsed state for compact storage. During operation, the platforms extend to provide access while maintaining structural integrity through the self-supporting skeletal frame that preserves strength regardless of platform configuration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The collapsible platform support structures are separated from the self-supporting skeletal frame, allowing the platforms to be collapsed for storage without compromising the structural integrity of the enclosed cargo storage area. The skeletal frame maintains its strength independently while the platforms can be reconfigured or collapsed.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4393550B1A collapsible self-supporting human and/or non-human cargo transport device
Publication Date: 2025.07.23
  • EP4393550B1 patent drawingFigure 1
  • EP4393550B1 patent drawingFigure 2
  • EP4393550B1 patent drawingFigure 3

AI summary

The invention relates to a collapsible self-supporting human and/or non-human cargo transport device (10) for use with a rotorcraft, comprising: an inner cargo storage area (10c) for accommodating human and/or non-human cargo for transportation; a self-supporting skeletal frame (11), and collapsible cargo securing means (12) mounted to the self-supporting skeletal frame (11) for delimiting the inner cargo storage area (10c). The self-supporting skeletal frame (11) comprises a collapsible platform support structure (15), a collapsible spreading structure (16), a telescopic rod (17) connecting the collapsible platform support structure (15) to the collapsible spreading structure (16), an attachment (9) connected to the telescopic rod (17) to enable attachment of the self-supporting skeletal frame (11) to a rotorcraft, and a plurality of tensioning cables (13) connecting the attachment (9) to the collapsible spreading structure (16) and the collapsible platform support structure (15).