Front Fork Suspension Stabilizer With Tuned Counterweight Damping
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Solution Overview
Problem
Existing bike suspension systems face challenges in effectively stabilizing front fork suspension over rough off-road terrain, leading to reduced rider comfort and control.
Innovation Solution
A suspension stabilizer system comprising a counterweight, guide assembly, and spring assembly, configured to attach to a bike's front fork suspension. The system includes a counterweight with a weight range of 0.25 to 5 pounds, guided by a linear motion path, and resisted by a spring assembly to maintain a natural motion frequency of 3 to 15 Hertz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a stiffer spring and greater damping force are used for large jumps, then the suspension can handle large impacts, but the ride comfort deteriorates on smaller bumps
Solution Approach 1:
The patent applies dynamics by making the suspension system adjustable rather than fixed. The spring preload and damping force can be dynamically changed based on riding conditions through adjustment mechanisms, allowing the system to adapt between handling large jumps and providing comfort on smaller bumps.
Solution Approach 2:
The patent changes physical parameters of the suspension system - specifically spring preload and damping coefficients - to resolve the contradiction. By adjusting these parameters, the same suspension can provide different characteristics for different terrain types, rather than being locked into a single compromise setting.
2Ease of operation
If a softer spring and smaller damping force are used for small bumps, then the ride comfort improves, but the suspension cannot effectively handle large jumps
Solution Approach 1:
The adjustment mechanisms enable the rider to dynamically change the suspension characteristics. When facing large jumps, the rider can increase spring preload and damping force, while for comfort-oriented riding on smaller bumps, softer settings are used.
Solution Approach 2:
The system allows modification of spring preload and damping parameters to match different terrain requirements, transforming a static compromise into a dynamic solution that can optimize for either comfort or impact resistance as needed.
3Adaptability or versatility
If a fixed compromise spring and damping setup is used, then the suspension works adequately for both large jumps and small bumps, but performance is limited in either extreme condition
Solution Approach 1:
The patent transforms the static compromise setup into a dynamic system with adjustment mechanisms. This allows the suspension to maintain reliable performance across different terrain types by adapting its characteristics, rather than relying on a fixed compromise that performs adequately but not optimally in any condition.
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 suspension stabilizer system enhances rider control and comfort by reducing the impact of bumps and oscillations, thereby improving the overall handling and stability of the bike over rough terrain.
Implementation Method 1
a spring assembly arranged to provide a spring force between the counterweight and the guide assembly to resist linear motion of the counterweight along the guide assembly axis
Implementation Method 2
The counterweight and spring assembly may have a natural motion frequency of 3 to 15 Hertz
Implementation Method 3
a guide assembly having a body defining a guide path along a guide assembly axis. The guide path may be configured to receive the counterweight and to guide the counterweight for movement in a linear motion along the guide assembly axis
Data Source
AI summary
A suspension stabilizer and method are described which may be attached to a bike having front fork suspension to improve handling and reduce rider fatigue. The suspension stabilizer may include a counterweight, a spring assembly and a guide assembly. The spring assembly may be arranged to provide a spring force between the counterweight and the guide assembly to resist linear motion of the counterweight along a guide assembly axis. The counterweight and spring assembly may have a natural motion frequency of 3 to 15 Hertz and may be based on one or more characteristics of the front fork suspension.