Integrated Wash Basin Handle for Aircraft Lavatory Stabilization
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Solution Overview
Problem
In aircraft lavatories, individuals face difficulty stabilizing and positioning themselves due to limited space, and existing handle solutions are obtrusive, ergonomically unsuitable, and often impractical, leading to discomfort and safety issues during turbulence.
Innovation Solution
An ergonomic handle assembly is integrated into the outer rim of the wash basin, providing a comfortable and secure grip without protruding into the limited space, designed to be easily grasped and minimizing additional structural loads on the lavatory components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate handle is mounted to walls or doors within an aircraft lavatory, then individuals can grasp it for stabilization, but it protrudes into valuable space and may prevent door from being fully opened
Solution Approach 1:
The handle is merged with the wash basin by being integrally formed as part of the basin structure, eliminating the need for separate mounted handles while providing stabilization support
Solution Approach 2:
The wash basin serves dual functions: as a washing surface and as a structural support element with an integrated handle, allowing it to provide both hygiene function and stabilization function
2Ease of operation
If the handle is made to protrude for easy grasping, then individuals can stabilize themselves, but it obstructs movement and prevents efficient ingress and egress
Solution Approach 1:
The handle is combined with the wash basin structure, using the basin's existing form to provide both the washing function and the grasping surface without adding protruding elements
3Reliability
If separate handles are mounted to provide stabilization, then individuals can brace themselves during turbulence, but mounting structure requires reinforcement adding extra weight
Solution Approach 1:
The handle function is merged into the wash basin structure, eliminating separate handle components and their mounting hardware, thereby reducing overall weight while maintaining stabilization capability
Solution Approach 2:
The wash basin structure serves multiple functions including washing, support, and stabilization, eliminating the need for additional specialized components and reducing total system weight
4Volume of moving object
If the outer edge of wash basin is used for grasping, then no additional space is consumed, but the thin flat surface is not easily grasped and causes finger slippage
Solution Approach 1:
The wash basin structure is modified locally at the outer edge to provide enhanced grasping features with appropriate thickness and surface characteristics while maintaining the overall compact design
Solution Approach 2:
The handle portion of the wash basin features curved surfaces that conform to hand geometry, providing ergonomic grasping surfaces that prevent finger slippage
Data Source
Figure 1
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AI summary
A lavatory (108) may include a vanity (106) including a wash basin (104), and a handle assembly (100) connected to a portion of the wash basin (104). The handle assembly (100) provides an ergonomic shape that is configured to be grasped by an individual.