Roller-Guided Suspension Fork for Low-Friction Shock Absorption
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Solution Overview
Problem
Existing suspension systems in wheeled vehicles, such as bicycles and motor vehicles, lack effective shock absorption, particularly when forks are rigidly mounted, leading to inadequate comfort and handling on uneven terrain.
Innovation Solution
A pair of elongated housings with a plurality of rollers and spring biasing, where the elongated members traverse the housings to reduce friction and absorb shocks, allowing for improved suspension by limiting travel with a stop mechanism and adjustable biasing pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If forks are rigidly mounted to the frame, then structural strength and stability are improved, but shock absorption capability deteriorates
Solution Approach 1:
The rigid fork is segmented into movable components including an elongated member with rollers that can traverse within the housing. This segmentation allows the fork to maintain overall structural integrity while enabling relative movement between components to absorb shocks from uneven terrain.
Solution Approach 2:
The fork transitions from a static rigid structure to a dynamic system where the elongated member can move within the housing. The spring biasing mechanism provides dynamic response to shocks, allowing the fork to adapt to varying terrain conditions while maintaining strength.
2Reliability
If traditional shock absorbing mechanisms are used, then shock absorption is improved, but friction between components increases
Solution Approach 1:
Rollers are introduced as intermediary elements between the elongated member and the housing. These rollers mediate the interaction between moving and stationary components, enabling shock absorption through controlled movement while significantly reducing friction compared to direct sliding contact.
Solution Approach 2:
The traditional sliding friction-based shock absorption is replaced with a roller-based system. This substitution transforms the mechanical interaction from high-friction sliding to low-friction rolling, maintaining shock absorption capability while minimizing harmful friction forces.
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 provides a more efficient shock absorption system that reduces friction and enhances vehicle comfort and handling by distributing forces effectively, capable of replacing traditional MacPherson strut suspensions in motor vehicles.
Implementation Method 1
Biasing, such as spring biasing, urges the elongated members downwardly, with the biasing absorbing shocks received at the wheel and conveyed to the elongated members
Implementation Method 2
The series of rollers on each of the elongated members traverse the housing to reduce friction between the housing and the elongated member as the elongated members traverse the housing
Data Source
AI summary
A pair of elongated housings are positioned generally parallel to each other for connection of a wheel to a vehicle. An elongated member comprising a plurality of rollers is positioned within each of the housings. Spring biasing urges the elongated members downwardly, with the spring biasing absorbing shocks received at the wheel and conveyed to the elongated members, causing movement of the elongated members within the housing. The series of rollers on each of the elongated members traverse the housing to reduce friction between the housing and the elongated member as the elongated members traverse the housing. At least one vehicle wheel is mounted to the elongated members.