Backless Electrical Box with Integral Mud Ring
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Solution Overview
Problem
The installation of electrical boxes, which involves mounting electrical components and containing wiring connections, is time-consuming due to the use of mud rings and separate installation components like brackets for attaching boxes to wall studs.
Innovation Solution
A backless electrical box made from a single continuous piece of metal, with an integral mud ring and sides formed from sheet steel, featuring seams and flaps or tabs for sealing and mounting, allowing direct attachment to studs without additional brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate mounting brackets and mud rings are used to attach electrical boxes to wall studs, then the installation process becomes more complex and time-consuming, but the structural support and mounting flexibility are improved
Solution Approach 1:
The patent combines the electrical box body, mounting brackets, and mud ring into a single integrated component made from one continuous piece of metal. This merging eliminates the need for separate mounting brackets and mud rings, directly reducing the number of parts and simplifying the installation process while maintaining all necessary functions.
Solution Approach 2:
The single continuous metal piece performs multiple functions simultaneously: it provides the electrical box enclosure, includes integrated mounting brackets for attaching to wall studs, and incorporates a mud ring for finishing. This multi-functionality eliminates the need for separate specialized components for each function.
2Productivity
If multiple separate components are used to construct the electrical box assembly, then each component can be optimized for its specific function, but the overall installation time and labor requirements increase
Solution Approach 1:
By merging all components into one integrated piece, the patent eliminates the time required to handle, position, and fasten multiple separate components. The single-piece construction allows the installer to work with one component throughout the installation process, directly improving installation speed and reducing labor time.
3Strength
If the electrical box is made from a single continuous piece of metal, then structural integrity is improved, but manufacturing complexity and the need for precise forming operations increase
Solution Approach 1:
While the final product is a single continuous piece, the manufacturing process uses segmentation by forming distinct functional zones (box body, mounting brackets, mud ring) from the continuous metal strip. This allows each zone to be precisely formed for its specific function while maintaining the structural integrity of the continuous material.
Solution Approach 2:
The patent transforms a two-dimensional metal sheet into a three-dimensional multi-functional structure through sequential forming operations. The metal strip is bent and shaped in multiple dimensions to create the box enclosure, integrated brackets, and mud ring, adding structural complexity without requiring separate components.
Data Source
AI summary
A backless electrical box is formed out of a single piece of material, with a front and sides of the box being parts of the same single piece of material. The front of the box has an integrally-formed mud ring that extends forward from a front base of the front. The sides are made out of material bent back from two opposite edges of the front base, bent around to form the four sides. Some or all of the sides may have seams in them, which may be secured by portions of material overlapping along some or all of the height of the sides, riveted or otherwise attached together. Mounting flanges may extend from the other two opposite edges of the front base. Tabs bent downward from the mounting flanges may be used to cover holes in the sides that extend rearward from these two other opposite edges.