Bicycle Simulator Roller with Dynamic Protrusions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional bicycle simulators face challenges in providing a realistic and dynamic riding experience due to complex structures, safety concerns, and excessive pedaling load, which lead to boredom and discomfort for riders.
Innovation Solution
A virtual road surface implementation-type bicycle simulator that uses a single rear wheel support with protruding uneven portions and a drive unit to simulate various road surfaces, including a front wheel support with similar features, simplifying the structure and ensuring rider safety through natural surface changes and dynamic pedaling experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If three or more roller portions rotate back and forth to implement various road surfaces, then a rider may experience various road surface states, but the structure becomes complicated and manufacturing or maintenance difficulties are expected
Solution Approach 1:
The roller surface is segmented into multiple independent protrusion elements that can individually adjust their height. This allows the creation of various road surface patterns (flat, uneven, cobblestone, etc.) by controlling the position of individual segments rather than rotating entire roller portions, thereby simplifying the overall structure while maintaining road surface variety.
Solution Approach 2:
The protrusions on the roller surface can dynamically adjust their height positions during operation. This dynamic adjustment capability allows a single roller to simulate multiple road surface types without requiring multiple physical rollers, resolving the contradiction between structure simplicity and road surface versatility.
2Adaptability or versatility
If roller portions rotate to change road surfaces, then various road surfaces are implemented, but the bicycle largely moves up and down, impairing rider safety
Solution Approach 1:
The roller maintains a fixed rotational position while the protrusions on its surface dynamically adjust their heights to simulate different road surfaces. This eliminates the up-and-down movement of the entire bicycle that occurs when rollers rotate, thereby ensuring rider safety while still providing realistic road surface simulation.
Solution Approach 2:
The road surface simulation function is extracted from the roller's rotational movement and transferred to the vertical adjustment of protrusion elements. This separation allows the roller to remain stationary, preventing bicycle instability, while still achieving the desired road surface effect through localized protrusion height changes.
3Adaptability or versatility
If three or more roller portions and the fixed shaft all rotate together, then road surfaces are implemented, but an excessive pedaling load is applied to the rider
Solution Approach 1:
The system uses dynamic height adjustment of protrusions on a single rotating roller instead of rotating multiple rollers. This reduces the moment of inertia and rotational mass that the rider must overcome, thereby reducing excessive pedaling load while still providing realistic road surface simulation through the adjustable protrusion heights.
4Device complexity
If a single roller is used to implement various road surfaces, then structure is simplified, but realistic road surface sensation may be compromised
Solution Approach 1:
The single roller is equipped with multiple independently adjustable protrusion segments that can be positioned at different heights. This segmentation allows the creation of complex road surface patterns (flat, uneven, cobblestone, etc.) on a single roller, maintaining structure simplicity while achieving realistic road surface sensation through varied protrusion configurations.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
Provided is a virtual road surface implementation-type bicycle simulator. The virtual road surface implementation-type bicycle simulator according to the present disclosure includes a rear wheel support portion that supports a rear wheel of a mounted bicycle and rotates together with rotation of the rear wheel; and a road surface implementation portion including a plurality of uneven portions that perform a protrusion operation at various heights on an outer peripheral surface of the rear wheel support portion in contact with the rear wheel, thereby providing a rider riding the bicycle with various road surface states which are virtually set.