Light Fixture Mounting Ledge Tab Aperture Mechanism
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Solution Overview
Problem
Existing wall-mounted sconce light fixtures face challenges in efficient assembly and disassembly, and accommodating various lighting elements without altering the connection principle to the supporting structure.
Innovation Solution
A light fixture design featuring a backplate that fixedly connects to a supporting structure via a mounting plate with a cage that is releasably connected using integrated tabs and apertures, eliminating the need for additional fasteners, and allowing for easy access to the lighting assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional wall sconce fixtures use hooks or interlocking channels to attach to wall plates, then the fixture can be securely mounted to the supporting structure, but the assembly and disassembly process becomes complex and time-consuming
Solution Approach 1:
The fixture is divided into separate components: a backplate that attaches to the wall plate and a cage portion that houses the lighting assembly. The backplate and cage portion are connected through a simple aperture-received-tab mechanism rather than complex interlocking channels, allowing easy separation and assembly while maintaining secure mounting to the supporting structure
Solution Approach 2:
The complex interlocking channel mechanism is extracted and replaced with a simpler connection system. The backplate is extracted as a separate component that handles the wall mounting function, while the cage portion handles the lighting assembly housing, connected through simple tabs and apertures rather than complex channels
2Strength
If additional fasteners are used to connect the cage to the backplate, then the connection strength is improved, but the number of parts and assembly complexity increases
Solution Approach 1:
The connection function between the cage and backplate is merged into the structural design of the components themselves. Tabs are integrated into the cage portion and received within apertures in the backplate, eliminating the need for separate fasteners. The structural elements serve both their primary function and the connection function
Solution Approach 2:
The cage and backplate are designed to self-connect through their integrated tabs and apertures without requiring additional fasteners or complex assembly procedures. The tabs naturally engage with the apertures when the components are brought together, providing automatic alignment and connection
Data Source
AI summary
The light fixture connects a separable cage to a that may directly mount to the wall of a structure or which may mount to the structure through a wall plate. The cage has a frame with a roof and an open rear side that receives the backplate. A lighting assembly is connected to the front face of the backplate and is thereby housed within the interior of the cage when the unit is assembled and which can be accessed when the cage is removed. To removably attach the cage to the backplate, an aperture is provided within a ledge in the backplate that receives a tab to suspend the cage from the backplate fixedly connected to the supporting structure. Thus, the lighting assembly can be accessed by separating the cage from the backplate.