Trolling Motor Rotation Control via Cable Management
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Solution Overview
Problem
Existing trolling motors face issues with over-rotation, which can damage wiring and electronic components, and are limited to 360 degrees of rotation, restricting maneuverability and not effectively preventing over-rotation when the motor is off or due to software malfunctions.
Innovation Solution
A trolling motor assembly with a gear assembly and plate mechanism that allows rotation beyond 360 degrees while preventing over-rotation through a rib and tab interaction, using a processor to manage rotation limits and track angular positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the trolling motor allows rotation beyond 360 degrees to improve maneuverability, then the ease of operation is improved, but the wiring and electronic components may become damaged due to over-rotation
Solution Approach 1:
A cable management system acts as an intermediary between the rotating lower housing and the stationary upper housing. The cable routing mechanism includes guides, tensioners, and protective channels that mediate the rotational movement, preventing excessive tension and twisting of the wiring while allowing the lower housing to rotate beyond 360 degrees for improved maneuverability.
Solution Approach 2:
The cable management system is designed to be dynamic rather than rigid. The cable routing includes flexible sections, tensioning mechanisms, and guides that adapt to the rotational position of the lower housing. This dynamic design allows the wiring to accommodate rotations beyond 360 degrees without becoming pinched, stretched, or damaged, thus maintaining reliability while improving maneuverability.
2Reliability
If mechanical cable steering is used to limit rotation to 360 degrees to protect wiring, then the reliability is improved, but the ease of operation deteriorates due to restricted maneuverability
Solution Approach 1:
The patent replaces the traditional mechanical cable steering system that physically limits rotation with an electrically-driven system. An electric motor in the upper housing drives the propeller shaft through a gear assembly, eliminating the need for flexible cables that constrain rotation. This substitution allows the lower housing to rotate freely beyond 360 degrees while the electric motor provides controlled propulsion, thereby improving maneuverability without compromising wiring protection through proper cable management.
3Device complexity
If software control is used to prevent over-rotation, then the device complexity is reduced, but the reliability deteriorates when power is off or during software malfunctions
Solution Approach 1:
The cable management system serves as a passive mechanical intermediary that provides continuous physical protection for the wiring regardless of software state. Even when power is off or software malfunctions occur, the cable routing mechanism with its guides, tensioners, and protective channels continues to prevent wiring damage from over-rotation, thereby maintaining reliability without significantly increasing device complexity.
Data Source
AI summary
Trolling motor assemblies and related methods of operation. A method includes providing an assembly comprising a main housing; a shaft rotatably coupled with the main housing, the shaft having a longitudinal axis; a gear coupled with the shaft; a plate rotatably coupled with one of the shaft and the main housing; and a projecting rib coupled with the other of the shaft and the main housing. The plate is rotated through a first angular displacement about the longitudinal axis. The gear is rotated through a second angular displacement about the longitudinal axis that is greater than the first angular displacement.