Kite Control Bar with Integrated Line Adjustment Reel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current kite control systems face challenges in efficiently and safely trimming control lines, leading to potential over-powering of kites, ergonomic issues, and wear and tear, particularly with central load bearing line trimming and control line length adjustment methods.
Innovation Solution
A kite control bar design featuring a line guide with a fixed pawl and pivotally mounted reel, allowing for simultaneous and secure trimming of control lines with discrete locking positions, and a compact reel with ratchet gear for easy length adjustment, eliminating dangling lines and reducing wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reel with ratchet gear is pivotally mounted on the control bar, then the control line length adjustment is simplified and made more reliable, but the device complexity increases due to additional components
Solution Approach 1:
The reel assembly integrates multiple functions into a single unit: the reel spool for line winding, the ratchet gear for one-way locking, and the pawl for engagement with the control bar. This merging of functions reduces the number of separate components needed while maintaining reliable control line length adjustment.
Solution Approach 2:
The ratchet gear and pawl mechanism automatically locks the reel in place when control line tension is applied, eliminating the need for manual locking operations. The system self-locks upon loading, providing reliable control line length maintenance without additional user intervention.
2Reliability
If the reel is biased into the engaged position, then the control line length is securely maintained, but the ease of operation is reduced due to the constant biasing force required
Solution Approach 1:
The spring biasing mechanism pre-loads the reel toward the engaged position with the pawl, creating a constant readiness to lock. This preliminary anti-action counteracts any tendency of the reel to disengage, ensuring secure control line length maintenance while requiring minimal user force to maintain engagement.
3Reliability
If the ratchet gear prevents rotation of the reel, then the control line length is locked securely, but the ease of operation is reduced when adjustment is needed
Solution Approach 1:
The ratchet gear replaces complex multi-component locking mechanisms with a simple tooth-and-pawl system. This mechanical substitution provides secure one-way locking while allowing easy release by applying force in the opposite direction, maintaining both reliability and ease of operation.
4Ease of operation
If the reel is moved from engaged to disengaged position by pushing the knob, then the control line can be adjusted, but the device complexity increases due to the movable knob mechanism
Solution Approach 1:
The knob serves as an intermediary element between the user's hand and the reel mechanism. It provides a convenient gripping surface and leverage point for disengaging the ratchet gear, while the simple pivot connection to the reel minimizes the overall mechanism 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 enables quick, safe, and ergonomic adjustment of control line length, preventing kite over-powering, reducing wear, and maintaining a compact, lightweight design suitable for demanding conditions.
Implementation Method 1
The reel has a ratchet gear. The reel is pivotally movable from an engaged positioned in which the ratchet gear of the reel is engaged with the pawl on the control bar thereby preventing rotation of the reel
Implementation Method 2
The reel is biased into the engaged position. A spring element is provided to biasing the reel into the engaged position with the pawl
Data Source
AI summary
A kite control bar having a line guide extending with a fixed pawl towards one end. A reel is pivotally mounted towards one end of the control bar and extending into the line receiving channel. The reel has a fixed shaft with a knob on the shaft to enabling manual rotation of the reel. The reel has a ratchet gear. The reel is pivotally movable from an engaged positioned in which the ratchet gear of the reel is engaged with the pawl on the control bar thereby preventing rotation of the reel and a disengaged position in which the ratchet gear of the reel is disengaged from the pawl on the control bar thereby allowing rotation of the reel. The reel is biased into the engaged position. The reel is moved from the engaged position to the disengaged position by pushing the knob away from a center of the control bar.