Deformable Guide Wire Hinge for Warping-Resistant Stow Box Doors
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Solution Overview
Problem
Conventional stow box door hinge systems lack flexibility, leading to excessive load transmission to latching and mounting points, which can result in deformation and failure during dynamic stress conditions such as pitch and roll warping, and are cumbersome due to multiple parts, increasing cost, weight, and assembly time.
Innovation Solution
A deformable guide wire hinge system with a unitary guide wire and anchoring structures, including a blind retention hole and undercut retention structure, allows the hinge to absorb stress and maintain functionality during warping, reducing load on latching points and eliminating the need for additional fastening hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional piano hinge system is used, then the door can hold loads for normal operation, but the system transmits excessive loads to the latching and mounting points and lacks flexibility during warping
Solution Approach 1:
The hinge system changes the physical state of the guide wire from rigid to deformable under stress. The guide wire is designed to yield and deform plastically when subjected to excessive loads during warping, thereby absorbing energy and preventing transmission of these loads to the latching and mounting points while maintaining door operability
Solution Approach 2:
The guide wire is pre-configured with specific geometric features (angled portions, varying cross-sections) that create controlled deformation zones. These features act as beforehand cushioning elements that will deform in anticipation of warping loads, protecting the critical latching and mounting points from excessive forces
2Strength
If multiple hinge halves and pins are used, then the door can be securely attached, but the system becomes cumbersome with increased cost, weight, and assembly time
Solution Approach 1:
The invention merges multiple separate hinge components (hinge halves, pins, fasteners) into a single integrated guide wire structure. The guide wire incorporates all necessary functional elements - pivoting capability, load bearing, and attachment features - into one continuous piece, eliminating the need for multiple discrete parts and reducing assembly complexity
Solution Approach 2:
The guide wire serves multiple functions simultaneously: it acts as the hinge pivot, the structural connector, the load-bearing element, and the deformable safety feature. This multi-functionality eliminates the need for separate specialized components, reducing both part count and overall system weight
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 guide wire hinge system effectively absorbs stress during warping, maintaining the stow box door's operability and reducing weight, cost, and part count, while ensuring the door remains closed under FAA-certified dynamic loads.
Implementation Method 1
The hinge system may be configured to be deformable in response to experiencing a warping
Implementation Method 2
the guide wire hinge is configured to be deformable in response to experiencing a warping
Data Source
AI summary
As described herein, a hinge system may comprise one or more a guide wire hinges. In general, the guide wire hinges may be unitary members having a generally constant diameter. A pair of guide wire hinges may be utilized to hingeably couple a stow box door to the stow box housing. The hinge system may be configured to be deformable in response to experiencing a warping.