Windlass Line Spooling Mechanism for Directional Force Control
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Solution Overview
Problem
Conventional windlass systems experience instability and safety issues due to varying force direction as the line is spooled onto or off a horizontal drum, limiting versatility and installation sites, and often result in undesirable twisting and jerking of the line.
Innovation Solution
A compact windlass design with a drum oriented along a longitudinal axis and a line spooling mechanism that allows for smooth and accurate force application in any selected direction, using a drive mechanism and line spooling mechanism to ensure consistent line direction and reduce twisting, enabling installation in limited spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the line is spooled onto or off of a horizontal drum, then the line length can be extended, but the direction of the applied force varies relative to the load causing instability and tipping
Solution Approach 1:
A guide pulley is introduced as an intermediary component between the drum and the load. The guide pulley redirects the line so that it leaves the drum tangentially and approaches the load at a consistent angle, mediating the force transmission to eliminate directional variation and prevent windlass tipping while maintaining extended line length capability
2Ease of manufacture
If the drum is mounted in horizontal orientation to spool the line, then the line can be distributed along the drum length, but the line direction varies causing twisting and jerking
Solution Approach 1:
The guide pulley serves as a mediator that ensures the line leaves the drum tangentially and follows a controlled path to the load. This intermediary component prevents the line from twisting and jerking by maintaining consistent alignment throughout the spooling operation, while preserving the horizontal drum mounting configuration
3Area of stationary object
If the drum length is limited by installation space, then the windlass can be installed in limited spaces, but the available line length is restricted
Solution Approach 1:
The guide pulley introduces a dimensional change by redirecting the line through a different spatial path. Instead of the line extending directly from the drum in a straight line, it is routed through the pulley, effectively increasing the usable line length within the same installation footprint and allowing greater operational reach without requiring more installation space
Data Source
AI summary
A compact windlass and a method of operating the windlass are disclosed for exerting a force upon a load along a selected direction of force. A drum is extended along a longitudinal axis of rotation and a line is engaged with a surface on the drum. The line is aligned with a line spooling direction transverse to the longitudinal axis of rotation for being spooled onto the drum by a line spooling mechanism located in close proximity with the surface of the drum and engaging the line at a line engagement location juxtaposed with the drum, in response to rotation of the drum in a spooling direction of rotation, and off of the drum in response to rotation of the drum in an unspooling direction of rotation. A load is coupled with the line, and the line is directed between the line spooling direction and a selected direction of force aligned along a load path extending essentially parallel with the longitudinal axis of rotation and placed closely adjacent the drum, as the line is spooled onto and off of the drum, so as to exert a force upon the load along the selected direction of force. The windlass can be oriented in substantially any selected direction so as to orient the direction of force in a corresponding direction, for exerting a force along the corresponding direction, such as a lifting force or a pulling force, upon the load.