Aircraft Monument Frame Fastening for Flush Fixture Access
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Solution Overview
Problem
Existing fastening systems for attaching fixtures to aircraft monuments are laborious to install and maintain, as they protrude unevenly, expose screws, and require complex unscrewing processes for maintenance.
Innovation Solution
A fastening system comprising a wall portion with a first fastening element and a frame with a second fastening element, where the elements engage and move relative to each other in a pre-assembled state to fix in a fastened state, allowing for easy maintenance and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional frames are screwed to the wall portions from the front, then the fixture can be attached to the monument, but the frames protrude beyond the monument to a considerable extent and do not finish flush therewith, leading to an uneven visual appearance and producing corners and edges on which people can get caught
Solution Approach 1:
The fastening system is divided into separate modular components: a frame with fastening elements and a monument with corresponding engagement features. This segmentation allows the frame to be designed to finish flush with the monument while using hidden fastening mechanisms, resolving the contradiction between achieving a flush appearance and maintaining ease of installation.
Solution Approach 2:
The patent introduces intermediary fastening elements that are concealed within the monument structure or frame design. These hidden fastening mechanisms enable secure attachment without visible screws or protruding components, achieving both the flush finish requirement and simplified installation through standardized fastening interfaces.
2Reliability
If conventional frames with visible screws are used, then the fixture can be fastened to the monument, but the screws are visible and thus not protected against access by unauthorized persons
Solution Approach 1:
The visible screw fastening mechanism is extracted and replaced with concealed fastening elements integrated into the monument or frame structure. This extraction of the visible component while retaining the fastening function protects against unauthorized access and reduces device complexity by eliminating the need for separate visible fasteners.
Solution Approach 2:
Concealed intermediary fastening elements are introduced as the mediating mechanism between the frame and monument. These hidden fasteners provide secure attachment and protection against unauthorized access while maintaining a clean appearance and reducing overall system complexity compared to visible screw systems.
3Ease of operation
If conventional frames are used for fastening, then the fixture can be attached to the monument, but during fastening the frame must be positioned correctly and supported in the process, making installation relatively laborious
Solution Approach 1:
The frame is pre-equipped with fastening elements during manufacturing, and the monument contains corresponding engagement features. This preliminary preparation eliminates the need for complex positioning and support operations during installation, allowing for quick and easy attachment by simply engaging the pre-configured fastening mechanisms.
Solution Approach 2:
Standardized intermediary fastening elements serve as the mediating interface between frame and monument, enabling simple engagement without complex positioning requirements. These pre-designed fastening mechanisms reduce installation time and effort by providing intuitive, tool-free or minimal-tool assembly procedures.
4Ease of repair
If conventional frames are used, then the fixture can be fastened to the monument, but if maintenance work is to be carried out on a fixture once installed, or the fixture is to be replaced, the frame has to be unscrewed and fastenings of the fixture have to be released, making maintenance very time-consuming and labor-intensive
Solution Approach 1:
The fastening system is segmented into independently removable components: the frame can be detached from the monument, and the fixture can be separated from the frame. This modular segmentation enables quick maintenance access by simply disengaging the concealed fastening elements without complex unscrewing operations, significantly reducing maintenance time and effort.
Solution Approach 2:
The concealed fastening elements act as intermediary mechanisms that enable quick release and reattachment during maintenance. These same fasteners that provide secure installation also facilitate easy maintenance by allowing simple engagement and disengagement without requiring multiple fastening operations or specialized tools.
Data Source
AI summary
A fastening system to attach a fixture to a monument installed in a passenger cabin including a wall portion of the monument having at least one first fastening element; and a frame having at least one second fastening element and which is configured to cover the fixture, at least in part, in a fastened state. The first and second fastening elements are configured to engage with one another and be movable relative to one another in a pre-assembled state, and to fix one another in the fastened state. The fastened state can be produced in that, in the pre-assembled state, the frame is moved relative to the wall portion in a fastening direction extending at least substantially parallel to a main extension plane of the wall portion. A method for attaching a fixture to a monument provided for installation in a passenger cabin via a fastening system is provided.