Retrofit Electrical Box with Moveable Braces for Stud-Free Installation
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Solution Overview
Problem
Conventional electrical boxes require locating and attaching to wall studs, making it challenging to install them in existing walls without damaging the wall surface or using power tools.
Innovation Solution
A retrofit electrical box assembly with moveable clamping members that allow secure attachment to a wall surface without studs, using a brace actuator and flexible release mechanism for easy installation and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrical boxes are mounted to wall studs using nails or screws, then the box is securely fastened to the wall structure, but the installation process becomes complex and requires locating studs and using power tools
Solution Approach 1:
The patent removes the requirement for wall stud attachment by extracting the mounting function from the wall structure. The electrical box is designed to mount directly to the wall surface itself, eliminating the need to locate and attach to studs, thereby simplifying installation while maintaining secure attachment.
Solution Approach 2:
The patent introduces a mounting plate or flange as an intermediary component between the electrical box and the wall surface. This intermediary element distributes the mounting forces across a larger area of the wall surface, enabling secure attachment without requiring stud locations, thus reducing installation complexity while maintaining reliability.
2Adaptability or versatility
If electrical boxes are installed after wall covering is added, then the installation location can be chosen freely, but the wall covering must be damaged or pierced to attach the box
Solution Approach 1:
The patent employs a mounting mechanism that utilizes flexible mounting elements or thin film adhesives to attach the electrical box to the wall surface. These flexible elements can conform to the wall covering material without requiring penetration or damage, allowing free location selection while preserving the wall surface integrity.
Solution Approach 2:
The mounting system is segmented into separate components: a mounting plate that interfaces with the wall surface and the electrical box body. This segmentation allows the mounting plate to be designed with surface-mounted attachment features that do not penetrate the wall covering, enabling flexible location selection without damage while the box itself remains securely mounted.
3Reliability
If a rotating flipper mechanism is used to clamp the wall covering, then the box can be securely attached without studs, but the installation requires power tools and is time-consuming
Solution Approach 1:
The patent employs a spring-loaded or cam-actuated mounting mechanism that automatically clamps the wall covering between the mounting plate and the wall surface when the box is positioned. The mechanism self-adjusts to secure the attachment without requiring external power tools or complex manual operations, thereby maintaining secure attachment while dramatically improving installation speed.
Solution Approach 2:
The mounting mechanism incorporates dynamic elements such as springs or cam levers that provide automatic clamping force. As the electrical box is positioned against the wall, these dynamic elements automatically engage and apply sufficient force to secure the wall covering, eliminating the need for time-consuming power tool operations while ensuring reliable attachment.
4Reliability
If fastener holes are provided in the box for wall stud attachment, then the box can be securely mounted to studs, but the installation becomes more difficult in existing walls without accessible studs
Solution Approach 1:
The electrical box is designed with dual-functionality: it can be mounted using traditional stud attachment methods when studs are accessible, or alternatively mounted to the wall surface using the integrated surface-mounting mechanism when studs are not accessible. This universality allows the same box to be installed easily in both new construction and retrofit scenarios, maintaining mounting security while improving installation ease across different situations.
Data Source
AI summary
A retrofit electrical outlet comprises an electrical box comprising one or more moveable braces coupled to linear brace actuators, whereby pulling on the linear brace actuator causes the brace to move toward the front end of the box to impinge a wall surface material between the brace and a front flange of the box. Releases may be included to allow for adjustment of the braces. The braces may move linearly or pivotally toward the wall surface material. The linear brace actuator may be stored within the wall for future use.