Knee Saver Harness Junction Box for Standing Electrical Installation
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Solution Overview
Problem
Existing electrical connection systems in junction boxes are inefficient, making it difficult for electricians to determine proper wire connections during inspections, leading to safety concerns and increased installation time due to hidden wire connections and the need for frequent disassembly.
Innovation Solution
A dielectric body with visible side connector ports for black, white, and ground wires, allowing for easy identification and connection outside the junction box, reducing the need for wire nuts and enabling safer, faster installations by allowing electricians to work standing up.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire connections are made inside the junction box using wire nuts, then the connections are contained within the box, but the connections become hidden and difficult to inspect
Solution Approach 1:
The patent introduces a junction box with a removable front panel that acts as an intermediary between the hidden wire connections and the inspector. The front panel can be removed to expose the wire connections inside the box, allowing for easy inspection without requiring complete disassembly of the electrical components. This mediator enables both reliable contained connections and accessible inspection.
Solution Approach 2:
The junction box design incorporates a dynamic front panel that can be in two states: closed (for containment and safety) and open (for inspection). This dynamic characteristic allows the system to adapt between the need for secure wire containment and the need for visual inspection, resolving the contradiction between connection reliability and inspection accessibility.
2Ease of manufacture
If electricians kneel to install receptacles at standard height, then the installation can be completed, but physical strain and injury risk increase
Solution Approach 1:
The patent addresses the physical strain issue by changing the vertical dimension of the workspace. The junction box is designed to be installed at a height that allows electricians to work in a standing position rather than kneeling. This dimensional adjustment eliminates the harmful physical strain while still enabling complete installation of receptacles and inspection of connections.
3Adaptability or versatility
If multiple cables are installed in a junction box, then the electrical circuit requirements are met, but wire management becomes complex and connections may become loose
Solution Approach 1:
The junction box is segmented into distinct compartments and sections that organize different cables and wire connections. This segmentation allows multiple cables to be installed while maintaining clear separation and management of each wire bundle, reducing complexity and preventing loose connections while still accommodating various circuit configurations.
Solution Approach 2:
The patent employs standardized connection points and terminal blocks that provide consistent, repeatable connection methods for each wire. This copying of standardized connection patterns across multiple cables simplifies wire management and reduces the complexity that would otherwise arise from handling multiple different cable configurations.
Data Source
AI summary
THE KNEE SAVER HARNESS WIRED JUNCTION BOX comprises a wiring harness and an enclosure. It provides a work surface to measure, cut, and remove some sheathing from electrical cables, in preparation to install those cables to electrical receptacles and/or switches. The prepared wires are then connected to a HUB and termination devices, forming a wiring harness, outside of an enclosure. This wiring harness is now inserted into an installed electrical PVC or metal box, while the installer is standing up, and on the first day of the installation process. The core termination device and enclosure, can handle more than one power source, with different amperages, at the same time.