Adjustable-Depth Ring Assembly for Variable Wall Thickness
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Solution Overview
Problem
Conventional methods for installing electrical devices in junction boxes are inefficient due to the need for early installation, potential for device damage, and adjustments being time-consuming and costly, especially when drywall thickness changes or design modifications occur after initial installation.
Innovation Solution
An adjustable-depth ring assembly with a movable extension ring and spring clips allows for easy adjustment and secure mounting of electrical devices, eliminating the need for multiple screws and providing a visual guide for precise wall cutting, accommodating varying wall thicknesses without requiring adjustments during drywall installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If electrical devices are installed early in the process, then the installation timeline is established, but the devices are exposed to damage risk and design changes for extended periods
Solution Approach 1:
The mud ring is designed with adjustable depth capability, allowing it to adapt to different wall thicknesses and installation stages. This dynamic adjustment feature enables the electrical device to be installed early while maintaining proper positioning and protection throughout the construction process, reducing damage risk from exposure and design changes.
2Adaptability or versatility
If adjustable-depth mud rings are used, then accommodation of different wall thicknesses is achieved, but multiple threaded screws are required making adjustment inconvenient and time-consuming
Solution Approach 1:
The adjustment mechanism is extracted from complex threaded screw systems and simplified to a single set screw that engages with a slotted opening. This allows the mud ring depth to be adjusted by simply moving the set screw along the slot, eliminating the need for multiple threaded screws and making the adjustment process quick and convenient.
Solution Approach 2:
The design changes the adjustment parameter from rotational threading to linear sliding movement along a slot. The set screw moves along the slotted opening to change the effective depth of the mud ring, transforming a complex rotational adjustment into a simple linear displacement that requires minimal effort and time.
3Stability of the object's composition
If drywall thickness changes after electrical device installation, then design flexibility is reduced, but replacing mud rings becomes necessary
Solution Approach 1:
The mud ring incorporates adjustable depth capability that allows it to adapt to different wall and drywall thickness configurations. This dynamic adjustment feature maintains installation stability while providing the flexibility to accommodate design changes, eliminating the need to replace the entire mud ring assembly.
4Loss of energy
If electrical devices are installed before drywall completion, then cash flow is improved by delayed material purchase, but the devices remain exposed and vulnerable during extended periods
Solution Approach 1:
The adjustable mud ring provides protective cushioning for the electrical device from the moment of installation. By enabling proper positioning and secure mounting early in the process, it cushions the device against damage from exposure, handling, and construction activities throughout the extended period before drywall completion.
Data Source
AI summary
The present disclosure is directed to an adjustable-depth ring assembly for connection to an electrical box that is accessible through a wall opening in a wall member disposed forward of the electrical box. The assembly generally comprises a cover plate having a planar rigid plate and a raised portion, and an extension ring. A method of installing the assembly is also provided herein.