Traction Wing Control Bar Trim Adjustment Mechanism
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Solution Overview
Problem
Current control systems for traction wings face issues with trim adjustment compromising bar movement and line tangling, particularly in fluctuating wind conditions, where quick power reduction and untangling are essential.
Innovation Solution
A control system featuring a bar with transverse apertures, a central line bifurcating into front lines, and resiliently mounted grips that allow for trim adjustment without hindering bar movement, along with a helical spring that automatically regulates power in varying wind conditions by urging the bar towards the user in low winds and away in high winds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the grip mount is fixed to the central line for ready trim adjustment, then trim accessibility is improved, but bar sliding movement is compromised as the bar abuts the mount
Solution Approach 1:
The grip mount is made movable along the central line rather than fixed, allowing it to dynamically adjust its position. The resilient means (spring) enables the mount to move away from the bar when needed for full extension, while returning to a convenient position for trim adjustment, thus resolving the contradiction between accessibility and movement range.
2Ease of operation
If the trim adjustment strap is pulled to shorten the central line, then trim function is improved, but line tangling occurs with other control lines
Solution Approach 1:
The grip mount is extracted from a fixed position and made independently movable along the central line. This separation allows the trim adjustment function to be performed without the mount interfering with other control lines, eliminating the tangling problem while maintaining trim adjustability.
3Speed
If the bar is quickly moved to fully extended position for power reduction, then safety response time is improved, but the fixed grip mount obstructs this movement
Solution Approach 1:
The resilient means (spring) mounted on the grip mount allows the bar to rapidly extend to the fully extended position by overcoming the spring force, enabling quick power reduction when needed. The spring then returns the mount to a convenient position, thus achieving both fast response and operational convenience.
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
Enables efficient trim adjustment and automatic power regulation, ensuring quick power reduction and preventing line tangling, enhancing user safety and convenience during kite surfing.
Implementation Method 1
resilient means for urging the grip toward the bar
Implementation Method 2
resilient means for urging the grip toward the bar
Implementation Method 3
resilient means for urging the bar toward the fitting
Implementation Method 4
the resilient means keeps the kite powered up by urging the bar towards the user
Data Source
AI summary
A control system for a traction wing or a surfing kite includes a bar that is gripped by a person carried in the wind by the wing or kite. Fixtures on the opposed ends of the bar are connected to respective lines that are attached to the wing. A central line attached to the wing passes through a hole located in the bar and divides into two lines that are connected to the user. A grip slides along the central line and the grip is biased toward the bar.