Variable Rate Throttle with Interchangeable Reels
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Solution Overview
Problem
Existing motorcycle hand throttles have a fixed throttle rate, which is not easily adjustable, limiting the rider's ability to change sensitivity and control according to different riding conditions.
Innovation Solution
A variable rate throttle assembly with interchangeable throttle reels and flared elbows, allowing for different track radii and capture notch angles, enabling easy modification of throttle sensitivity without needing cable adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed throttle rate is used, then the device structure is simple, but the adaptability to different riding conditions is poor
Solution Approach 1:
The throttle reel is divided into multiple segments that can be independently rotated and locked into different positions. Each segment position corresponds to a different effective radius, allowing the throttle sensitivity to be adjusted in discrete steps without changing the overall structure of the throttle assembly.
Solution Approach 2:
The throttle reel transitions from a fixed static structure to a dynamic adjustable structure. The reel can be rotated to different angular positions and locked, changing the effective radius dynamically to adapt to different riding conditions such as flat terrain versus hilly terrain.
2Measurement precision
If the throttle rate is made variable, then the control precision is improved, but the ease of operation is reduced
Solution Approach 1:
The throttle reel incorporates a self-locking mechanism with detent positions that automatically maintain the selected throttle rate setting. Once the rider rotates the reel to the desired position, the mechanism locks it in place without requiring additional adjustment actions or tools, making the operation simple and intuitive.
3Adaptability or versatility
If interchangeable throttle reels are used, then the adaptability is improved, but the device complexity is increased
Solution Approach 1:
A single throttle reel component performs multiple functions: it serves as the rotational element for throttle control, contains the adjustable segmentation mechanism for varying the throttle rate, and incorporates the self-locking detent system. This multi-functionality eliminates the need for separate adjustment mechanisms and reduces the overall number of parts.
Data Source
AI summary
A variable rate throttle for controlling a vehicle carburetor having control cables. The variable rate throttle includes a housing surrounding a cavity, a plurality of interchangeable throttle reels, each throttle reel having a different track radius, where a particular one of the throttle reels is positioned at a time in the cavity of the housing and which engages the control cables. A throttle handle engages the interchangeable throttle reel so that rotation of the handle causes rotation of the throttle reel and thus moves the control cables of the vehicle carburetor.