Snap-Fit Electrical Box Spacer for Flush Outlet Alignment
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Solution Overview
Problem
Existing spacers for electrical boxes are cumbersome, require trial-and-error installation, lack lateral stability, and fail to ensure flush alignment of switches or outlets with the wall surface, leading to aesthetically displeasing results.
Innovation Solution
A spacer with a snap-fit design that secures to the electrical box perimeter, providing both longitudinal and lateral support, and is available in various sizes with a self-measuring feature to ensure quick and reliable alignment without additional fasteners or tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If stacked spacers are used to compensate for recessed electrical boxes, then alignment with wall surface is improved, but installation time and complexity increase due to trial-and-error stacking
Solution Approach 1:
The spacer is pre-configured with a specific thickness and snap-fit attachment mechanism before installation. The electrician simply attaches the pre-made spacer to the electrical box, eliminating the need to stack and adjust multiple individual spacers during installation.
Solution Approach 2:
The spacer is divided into functional segments: a snap-fit attachment portion that secures to the electrical box perimeter, a body portion with predetermined thickness, and a mounting hole for the screw. This segmentation allows each part to perform its specific function efficiently.
2Length of moving object
If traditional spacers are used without lateral support structure, then longitudinal spacing is achieved, but lateral stability and anti-rotation support are insufficient
Solution Approach 1:
The spacer extends not only in the longitudinal direction (thickness) but also in the lateral direction (width greater than thickness). This two-dimensional extension provides both the necessary spacing and the lateral stability to prevent rotation and movement of the outlet or switch.
3Ease of manufacture
If electrical box is recessed too far into the wall, then box installation is simplified, but switch or outlet alignment with wall surface deteriorates
Solution Approach 1:
The spacer acts as an intermediary element between the recessed electrical box and the outlet or switch. It compensates for the excessive recess depth by providing a predetermined thickness that pushes the outlet or switch forward to align with the wall surface.
4Reliability
If multiple fasteners and tools are used for spacer installation, then secure mounting is achieved, but installation complexity and time increase
Solution Approach 1:
The snap-fit attachment mechanism and the mounting hole are integrated into a single spacer component. The snap-fit provides initial secure attachment to the electrical box, while the mounting hole accommodates the screw for final securement. This merging eliminates the need for separate fasteners and reduces installation steps.
Data Source
AI summary
The electrical box spacer is an improved spacer for mounting an outlet or switch within an electrical box at the proper depth relative to the corresponding wall in which the electrical box is placed. The spacer includes a bore for receiving the mounting screw used to fasten the outlet or switch to the electrical box and a fastener on the proximal edge that releasably fastens to the perimeter edge of the electrical box. In operation, the perimeter edge of the electrical box snaps into a groove along the proximal edge of the spacer body and the bore aligns with the threaded anchor portion of the electrical box which threadingly receives the mounting screw. When an extended spacer is needed, multiple bodies can be stacked together with depressions within one body connecting to the snap fastener of an adjacent body.