Spoked Bicycle Wheel Lighting With Balanced Modular Mounting
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Solution Overview
Problem
Existing bicycle wheel illumination devices are costly, cumbersome, and offset the wheel's center of mass, requiring additional weight to counteract centripetal forces.
Innovation Solution
A compact illumination device comprising a power pack, adaptor bodies, and attachment portions that can be attached to bicycle wheels using holders, allowing for flexible placement on hubs or spokes, utilizing LEDs with adjustable straps for secure attachment and customizable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If existing illumination devices are used, then the bicycle wheel can be illuminated, but the center of mass is offset and additional weight is required to counteract centripetal forces
Solution Approach 1:
The illumination device is divided into separate modular components: a power pack containing batteries, an adaptor body with light sources, and attachment portions. This segmentation allows the illumination function to be added without requiring a complete wheel replacement, and the modular design enables easy installation and removal without permanently altering the wheel's mass distribution.
Solution Approach 2:
The adaptor body is designed as a thin, flexible component that can be attached to the wheel rim without adding significant mass. The flexible design allows it to conform to the wheel's curvature and be securely mounted using elastic bands or straps, providing illumination while minimizing impact on the wheel's center of mass.
2Illumination intensity
If large power sources are used, then sufficient illumination is achieved, but the device becomes large and cumbersome
Solution Approach 1:
Traditional mechanical illumination systems (bulbs, sockets, wiring harnesses) are replaced with LED technology and a simplified power delivery system. The LEDs provide high illumination intensity in a compact form factor, and the power pack uses simple electrical connections rather than complex mechanical switching mechanisms, reducing overall device size.
Solution Approach 2:
The power pack is designed with flexible mounting options using elastic bands or straps that can adapt to different wheel sizes and configurations. This dynamic mounting system allows the same power pack to be securely attached to various wheel dimensions without requiring a large, rigid housing, thus reducing device volume while maintaining secure attachment.
3Use of energy by moving object
If regular sized batteries are used, then sufficient power is provided, but the weight significantly offsets the center of mass
Solution Approach 1:
The power system transitions from large-capacity batteries to high-energy-density lithium batteries or rechargeable cell packs. This parameter change in battery technology provides sufficient power for LED illumination while dramatically reducing weight. The compact power pack design further optimizes the weight-to-power ratio by using efficient electrical components and minimal housing material.
4Illumination intensity
If pre-existing wheels are replaced, then illumination is achieved, but costs increase significantly
Solution Approach 1:
The adaptor body and attachment portion are designed as universal components that can be installed on various bicycle wheel sizes and configurations. The modular design with standardized mounting mechanisms allows a single product to serve multiple wheel types, reducing manufacturing costs through economies of scale and eliminating the need for custom wheel replacements.
Solution Approach 2:
The illumination components are nested within a compact adaptor body that attaches to the existing wheel structure. The light sources are housed within the adaptor, which in turn is mounted on the wheel rim, creating a nested arrangement that utilizes the existing wheel space without requiring complete wheel replacement, thereby reducing costs.
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
Provides effective illumination without increasing the wheel's mass, maintaining balance, and reducing costs by allowing easy installation and battery replacement.
Implementation Method 1
The plurality of light sources are placed inside the adaptor body
Implementation Method 2
The at least one tubular body providing for the diffusion of light of the plurality of light sources inside the at least one adaptor body
Data Source
AI summary
Disclosed is an illumination device for use with spoked wheels, such as bicycle wheels, wherein the wheel includes a hub portion, a plurality of spokes, and a rim portion. The illumination device includes a power pack, at least one adaptor body, and at least one attachment portion. The power pack having at least one wire, a flexible button cap, a body housing, and circuit board with a switch. The at least one wire including a plurality of light sources. The at least one attachment portion including a clip portion providing for the installation of the at least one adaptor body to the bicycle spokes. The illumination device also includes a holder for the installation of the power pack to the bicycle wheel. Further, the illumination device may include a tubular body located in the internal cavity of the at least one adaptor body.