Aircraft Cargo Restraint with Quick-Release Bracket
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Solution Overview
Problem
Existing cargo restraining systems in aircraft are heavy and costly due to their massive construction, which is necessary to withstand high loads during operation, and they require complex tools and manpower for assembly and disassembly.
Innovation Solution
A cargo restraining assembly with parallel guidance and restraint bars, featuring a quick-release mechanism for easy mounting and dismounting on existing seat track profiles, and lateral brackets for additional stability, allowing for quick assembly and disassembly without complex tools, and designed to be lightweight for single-person handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If buffer stop assemblies are designed with massive construction to withstand high loads, then load-bearing capability is improved, but weight and cost increase
Solution Approach 1:
The buffer stop assembly is divided into multiple functional segments: a collapsible buffer element that absorbs energy through controlled deformation, a ratchet mechanism that provides one-way locking, and a mounting structure. This segmentation allows each component to be optimized for its specific function rather than over-designing the entire assembly for maximum load capacity.
Solution Approach 2:
The buffer element utilizes material parameter changes through controlled plastic deformation to absorb impact energy. The collapsible design allows the buffer to change its structural parameters dynamically during impact, transitioning from a rigid state to a deformed state that absorbs energy, thereby reducing the need for massive construction.
2Strength
If buffer stop assemblies are designed with massive construction to withstand high loads, then load-bearing capability is improved, but device complexity and cost increase
Solution Approach 1:
The assembly is segmented into standardized components (buffer element, ratchet mechanism, mounting brackets) that can be manufactured independently and assembled together. This modular approach simplifies manufacturing and maintenance while achieving the required load-bearing capability through proper component design rather than monolithic construction.
Solution Approach 2:
The ratchet mechanism provides automatic one-way locking without requiring external actuation or complex control systems. Once the buffer absorbs energy and decelerates the cargo, the ratchet automatically engages to prevent reverse movement, eliminating the need for additional locking mechanisms or manual intervention.
3Ease of operation
If quick-release mechanisms are used for easy assembly and disassembly, then ease of operation is improved, but reliability may worsen
Solution Approach 1:
The quick-release mechanism extracts the complex multi-step fastening process and replaces it with a single-action release system. The bracket design incorporates a quick-release feature that allows the mounting brackets to be rapidly attached to and detached from the cargo, significantly improving ease of operation while maintaining connection integrity through proper mechanical engagement.
Data Source
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AI summary
The present disclosure pertains to a cargo restraining assembly configured to be mounted to a cargo deck surface of an aircraft, the cargo restraining assembly comprising two guidance and restraint bars running in parallel to each other, and at least one lateral bracket spanning between the two guidance and restraint bars and being fixedly connected to each of two guidance and restraint bars. The lateral bracket includes a bracket foot formed integrally with the lateral bracket and a quick release mechanism configured to quick-releasably couple the bracket foot to a seat track profile of the cargo deck surface of the aircraft.