Recessed Lighting Casing With Adjustable Positioning Support
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Solution Overview
Problem
Existing recessed lighting appliances face challenges in achieving perfect coplanarity with uneven support surfaces and alignment difficulties when multiple units are installed in a continuous line due to the empirical and laborious method of using shims for leveling and the small contact surface area.
Innovation Solution
The design incorporates a casing with a U-shaped cross-section and adjustable positioning support with feet for precise leveling and alignment, featuring snap engagement for easy assembly and alignment of adjacent units, eliminating the need for screws and ensuring perfect parallelism and coaxiality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If shims are used under the casing for leveling, then the casing can be positioned on uneven surfaces, but the method is laborious, approximative and the shims and casing may move during cement pouring
Solution Approach 1:
The positioning support includes adjustable feet that can be dynamically adjusted during installation to achieve precise leveling. The feet can be moved independently to compensate for surface unevenness, allowing the casing to be precisely positioned without empirical shim placement. This dynamic adjustment capability eliminates the movement issues associated with static shims.
Solution Approach 2:
The invention replaces the empirical mechanical shim placement system with a structured positioning support system that has built-in adjustment mechanisms. Instead of manually placing and adjusting shims, the positioning support provides a systematic approach with adjustable feet that can be precisely positioned and locked, substituting the trial-and-error mechanical process with a controlled adjustment system.
2Length of moving object
If multiple appliances are placed in contact along their main axis to form a long line of light, then continuous lighting is achieved, but alignment becomes difficult due to small contact surface area and uneven support surfaces
Solution Approach 1:
The positioning support merges multiple functions into a single component: it provides leveling adjustment, longitudinal positioning, and alignment guidance. By combining these functions, the system ensures that when multiple appliances are installed, they are automatically aligned through the continuous positioning support structure, eliminating alignment difficulties that would arise from small contact surfaces between appliances.
Solution Approach 2:
The positioning support acts as an intermediary element between the uneven support surface and the lighting appliances. It mediates the alignment and positioning requirements by providing a stable reference structure that ensures precise placement of each appliance relative to others, regardless of surface unevenness or small contact areas between units.
3Reliability
If a removable lid is provided to prevent cement entry during casting, then the casing is protected, but additional assembly and removal steps are required
Solution Approach 1:
The removable lid enables preliminary protection of the casing interior during the cement pouring process. By placing the lid on the casing before casting, the interior is protected from cement contamination. The lid is then removed after the cement has set, allowing the lighting appliance to be installed without dealing with cement residue. This preliminary protective action simplifies the overall installation process despite the additional component.
Data Source
Figure 1
Figure 2
Figure 3~3a
AI summary
A recessed lighting appliance, comprises a casing (10) extending mainly along a longitudinal appliance axis (X) and which is suitable to be embedded in a floor, wall or ceiling, and a lighting body (20) suitable to be housed in said casing (10) so as to be substantially aligned with the outer surface of said floor, wall or ceiling. The lighting appliance further comprises a positioning support (30) suitable to be anchored to a support surface (2) for the appliance and to couple to said casing (10) so as to block the appliance in a correct position in relation to said support surface.