Aircraft Lavatory Movable Wall Locking for Wheelchair Privacy
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Solution Overview
Problem
Existing lavatory compartment structures in aircrafts are inadequate for wheelchair-bound passengers, either reducing the number of compartments or compromising privacy and convenience due to complex locking mechanisms.
Innovation Solution
A lavatory compartment structure with a movable wall and a main lock mechanism allowing independent operation from either side, ensuring privacy and convenience by connecting adjacent compartments without reducing their number.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large-sized lavatory compartment is installed for wheelchair accessibility, then wheelchair accessibility is improved, but the number of lavatory compartments is reduced
Solution Approach 1:
The intermediate wall is divided into a fixed wall portion and a movable wall portion, allowing the space between compartments to be dynamically segmented or merged based on accessibility needs while maintaining both compartments individually when standard use is required
2Adaptability or versatility
If a sliding door connects two lavatory compartments for wheelchair access, then wheelchair accessibility is improved, but privacy is compromised due to locking mechanism complexity
Solution Approach 1:
Instead of requiring separate locking operations for the door and sliding door, the invention inverts the control logic by using a single operation member that automatically controls both locking mechanisms through engaged and separated states, simplifying user interaction
Solution Approach 2:
The first operation member serves multiple functions: it controls both the door locking mechanism and the sliding door locking mechanism, allowing a single operation to achieve both locking states simultaneously and ensuring coordinated control
Data Source
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AI summary
A lavatory compartment structure of an aircraft capable of realizing convenience of passengers using wheelchairs etc. while ensuring privacy without reducing the number of lavatory compartments is provided. A lavatory compartment structure that may be installed of an aircraft includes a main lock mechanism including a first operation member that is operable from one side of either the first lavatory compartment or the second lavatory compartment, a second operation member that is operable from the other side of the first lavatory compartment or the second lavatory compartment, and a locking portion connected to the second operation member and that is movable between a lock position preventing movement of the movable wall with respect to the lavatory housing, and an unlock position enabling movement of the movable wall with respect to the lavatory housing, wherein, by operating the first operation member, the first operation member may be shifted to either an engaged state in which the first operation member is engaged to the second operation member or a separated state in which the first operation member is separated from the second operation member, and wherein, in the engaged state, the second operation member may not be operated to move the locking portion from the lock position to the unlock position, and in the separated state, the second operation member may be operated to move the locking portion from the lock position to the unlock position.