Junction Box Cover Plate Mount for Warning Bells
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Grade crossing warning equipment, particularly warning bells mounted high on masts, pose challenges for maintenance and retrofitting due to the difficulty in accessing wiring and potential damage during installation or repair.
Innovation Solution
A mount system integrated into a cover plate for junction boxes allows for the installation and retrofitting of warning bells lower on the mast without drilling into the mast, utilizing a removable cover plate that can be coupled to the junction box during manufacturing or as a retrofit, enabling easier access and reducing the risk of damaging existing wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If warning bells are mounted at the top of masts (16 feet or more above ground), then visibility and warning effectiveness are improved, but maintenance and repair become challenging and unsafe
Solution Approach 1:
The system is divided into separate functional components: the mast structure, the junction box with cover plate, and the warning bell. The cover plate acts as an independent access point that can be removed to reach the bell, allowing maintenance personnel to service the bell at a lower, safer position while maintaining its elevated mounting for visibility.
Solution Approach 2:
The removable cover plate serves as an intermediary element between the mast structure and the warning bell. It provides a controlled access point that allows personnel to reach the bell without needing to work at the top of the mast, thus mediating between the need for high mounting and the need for safe maintenance access.
2Ease of operation
If warning bells are mounted lower on the mast, then maintenance accessibility is improved, but visibility and warning effectiveness may be reduced
Solution Approach 1:
The solution moves the maintenance access point to a different spatial dimension - the cover plate is positioned on the front face of the junction box at a lower, accessible height, while the warning bell itself remains mounted at the top of the mast for visibility. This separates the maintenance access location from the operational mounting location in different spatial dimensions.
3Adaptability or versatility
If masts are drilled to retrofit lower bell mounting, then bell mounting flexibility is improved, but risk of damaging internal wiring and systems increases
Solution Approach 1:
The invention extracts the mounting function from the mast structure itself and relocates it to the cover plate of the junction box. This separation allows the bell to be mounted through the removable cover plate without any drilling or modification to the mast, thereby preserving the integrity of the mast and its internal wiring while still achieving flexible bell mounting.
Solution Approach 2:
The cover plate is designed with integrated bell mounting features built-in during manufacturing. This preliminary preparation eliminates the need for field drilling or modification when installing the bell, allowing installers to simply remove the cover plate and mount the bell without risking damage to internal systems.
Data Source
AI summary
A cover plate for a junction box may include a plate portion configured to cover an opening of the junction box. The cover plate may include a mast portion configured to couple with equipment configured to be mounted on a mast. The cover plate may include an offset portion coupling the mast portion with a front side of the plate portion.