Motorized Cable Reel With Automated Retraction And Signal Isolation
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Solution Overview
Problem
Existing cable reel assemblies in industrial settings, particularly in automotive assembly plants, face inefficiencies in unwinding and retracting mechanisms, leading to safety hazards, operational disruptions, and potential damage due to loose cables, and they often require cumbersome manual operation and are prone to interference from contaminants.
Innovation Solution
A cable reel assembly with a supporting frame, slip ring capsule for signal transfer, a rotatable reel driven by an electric motor, and an electronic control system that allows for automated retraction and payout of cables, featuring separate pathways for power and signal transmission, and a pivoting guiding mechanism to absorb impact and control motor operation based on position sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cables are left unreeled on the factory floor, then operational flexibility is maintained, but safety risks increase and operational efficiency decreases
Solution Approach 1:
The cable reel assembly automatically retracts cables using a motor-driven spool mechanism. The system self-regulates cable deployment and retraction without requiring manual intervention, thereby maintaining operational flexibility while eliminating safety hazards associated with loose cables on the factory floor.
2Reliability
If manual cable retraction is implemented, then safety is improved, but productivity decreases and human error increases
Solution Approach 1:
The patent replaces manual mechanical cable retraction with an automated motor-driven system. The motorized spool mechanism electronically controls cable deployment and retraction, eliminating the need for operators to manually handle cables, thereby improving productivity while maintaining safety through automated control.
3Reliability
If separate pathways for power and signal transmission are implemented, then electromagnetic interference is reduced, but device complexity increases
Solution Approach 1:
The cable assembly is segmented into separate conductive pathways for power transmission and signal transmission. This segmentation physically isolates high-current power conductors from low-voltage signal conductors, reducing electromagnetic interference and crosstalk while maintaining a manageable cable structure through organized internal routing.
4Reliability
If shielded conductive paths are implemented, then protection against contaminants is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs flexible shielding layers and protective coatings on conductive paths within the cable assembly. These thin-film shields provide protection against electromagnetic interference and environmental contaminants while maintaining cable flexibility and avoiding complex manufacturing processes, achieving reliable protection at reasonable manufacturing complexity.
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
The solution enhances safety by automating cable management, reducing the risk of tripping accidents, minimizing manual effort, and protecting against contaminants, while maintaining efficient operation and reducing electromagnetic interference.
Implementation Method 1
a set of contact brushes; a set of contact slip rings for electrical contact with the set of contact brushes
Implementation Method 2
an electric motor for alternately rotating said drum around said shaft in a first direction to pay out a cable attached to said drum, and for rotating said drum around said shaft in a second opposite direction to retrieve paid out cable
Implementation Method 3
a contact brush holder comprising at least one contact brush for continuous electrical contact and transferring electric power, for the portable electronic tool, with the at least one contact ring on the shaft
Data Source
AI summary
The current invention concerns an improved motorized cable reel, specifically for a more stable and safer winding of the cables therearound.