Magnetic Trunk Cable Alignment Tool for Bond Line Stress Prevention
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Solution Overview
Problem
Current methods for aligning trunk cables in maritime applications lack precision, requiring extensive manual effort and increasing the risk of improper installation, which can lead to electronic component failure and electrical power issues due to misalignment of cable identification lines.
Innovation Solution
A trunk cable installation verification tool featuring a body that attaches to a fitting tube, a magnet for secure attachment, and a tolerance indicator to ensure proper cable alignment, using a V-shaped protrusion or notch to align the cable centerline with the fitting tube's centerline.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current manual alignment methods are used, then installation flexibility is maintained, but alignment precision deteriorates leading to cable misalignment
Solution Approach 1:
The verification tool serves as an intermediary device between the cable and the fitting tube, providing a physical reference framework. The tool includes a reference plane, reference line, and tolerance indicator that mediate the alignment process by translating the abstract alignment requirement into concrete visual indicators that workers can easily interpret and follow.
Solution Approach 2:
The patent replaces the subjective human judgment system ('eyeballing') with an objective mechanical measurement system. The tool uses physical geometric references (reference plane, reference line, tolerance indicator) that provide quantifiable alignment verification, substituting manual estimation with a structured mechanical reference system.
2Productivity
If extensive manual effort is applied, then cable installation can be completed, but installation time increases
Solution Approach 1:
The verification tool is attached to the fitting tube before cable installation begins, establishing the alignment reference framework in advance. This preliminary action allows workers to immediately verify cable alignment as it is being installed, rather than having to perform separate alignment checks afterward, thereby reducing total installation time.
Solution Approach 2:
The tolerance indicator provides real-time visual feedback during the cable installation process. As the cable is being positioned, the worker can immediately see whether the cable identification line falls within the acceptable tolerance range, allowing for instant correction if misalignment is detected, thus preventing rework and reducing overall installation time.
3Reliability
If cable alignment is not verified, then installation process is simplified, but stress on bond line increases causing premature failure
Solution Approach 1:
The tolerance indicator uses visual differentiation (such as color-coded zones or contrasting colors for acceptable vs. unacceptable alignment) to make alignment status immediately apparent. This visual signaling system simplifies the verification process by transforming precise measurement into intuitive visual cues that are easy to interpret at a glance.
Solution Approach 2:
The verification tool segments the alignment verification process into distinct visual components: the reference plane establishes the baseline, the reference line provides the alignment axis, and the tolerance indicator divides the alignment space into acceptable and unacceptable zones. This segmentation makes the complex alignment requirement into manageable, visually distinct elements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate cable alignment, reducing stress on the bond line between the cable jacket and epoxy, preventing premature failure, and decreasing the need for costly rework and maintenance.
Implementation Method 1
A magnet secures the body to the fitting tube for quick and non-permanent attachment
Data Source
AI summary
Provided is a trunk cable installation verification tool. The device comprises a body that attaches to a stuffing or fitting tube, a level tube, a magnet, and a tolerance indicator for aligning a cable. The body is shaped to fit the contours of the fitting tube for ease of attachment thereto. A magnet secures the body to the fitting tube for quick and non-permanent attachment. The tolerance indicator is preferably a V-shaped protrusion or a notch that is aligned with the centreline of the fitting tube and is used to ensure proper alignment of the cable, which is confirmed with a cable identification line. The verification tool ensures proper cable alignment and reduces/prevents stress on the bond line between cable outer jacket and the epoxy, thereby preventing premature cable failure and extending the maintenance intervals required to replace damaged cables.