Offset Middle Wall Layout for Compact Aircraft Lavatory
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Solution Overview
Problem
Compact sanitary units on aircraft restrict user movement and leave limited space for other purposes, as they are designed to be as space-saving as possible.
Innovation Solution
A sanitary unit design featuring a middle wall with offset sections allows for differently dimensioned lavatory facilities, enabling space-saving arrangement of functional elements while maintaining a smooth user movement sequence by varying the spatial depth between adjacent facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sanitary units are designed to be compact and space-saving, then space utilization is improved, but user freedom of movement is restricted
Solution Approach 1:
The patent applies asymmetry by designing the middle wall with offsets that create non-uniform spatial distribution between adjacent lavatory facilities. Instead of symmetric partitioning, the middle wall includes first and second offsets at different positions, creating differently dimensioned space regions that optimize both compactness and movement freedom for each facility based on its specific functional requirements
Solution Approach 2:
The patent utilizes the third dimension (depth) by introducing offsets in the middle wall that create variations in spatial depth between adjacent facilities. This dimensional approach allows one lavatory facility to have extended depth in certain regions while the adjacent facility has reduced depth, enabling efficient space utilization without compromising user movement in either facility
2Area of stationary object
If sanitary units are designed to be compact, then space for other purposes is increased, but user movement sequence becomes restricted
Solution Approach 1:
The patent applies local quality by creating differently dimensioned space regions within adjacent lavatory facilities through middle wall offsets. Each facility receives tailored spatial configuration - one facility may have extended depth near the entrance while the other has extended depth near the toilet area, ensuring that compactness is achieved globally while local movement requirements are satisfied
3Area of stationary object
If lavatory facilities are arranged adjacently with shared middle wall, then space efficiency is improved, but design flexibility is reduced
Solution Approach 1:
The patent applies segmentation by dividing the shared middle wall into multiple sections with distinct offsets - a first offset region and a second offset region at different positions. This segmented approach allows each adjacent lavatory facility to have access to differently dimensioned space regions, providing design flexibility while maintaining the space-efficient adjacent arrangement and shared wall structure
Data Source
Figure 1a~1c
Figure 2a~2b
Figure 3
AI summary
The present invention relates to sanitary units on board a vehicle. In order to provide as compact a sanitary area as possible on board a vehicle, with which sanitary area nevertheless a smooth movement sequence is possible for users, a sanitary unit (10) for a cabin region on board a vehicle is provided with a first lavatory facility (12) and a second lavatory facility (14). The first and the second lavatory facilities in each case form a longitudinally-directed interior space (16) comprising two longitudinal sides (18) and two narrow sides (20). In each case a narrow side comprises an access door (22). The first and the second lavatory facilities adjoin each other by their longitudinal sides and are separated from each other by a shared middle wall (24). The shared middle wall extends between lateral connection regions (26) on the narrow sides and comprises at least one offset (30) at least in a middle region (28) between the two lateral connection regions in the horizontal direction.