Bicycle Hub Assembly With Protected Wired User Input Layout
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Solution Overview
Problem
Existing hub assemblies for human-powered vehicles lack efficient integration of electric components and user input devices, leading to potential damage from rotational movement and increased manufacturing costs due to the inclusion of wireless communication receivers.
Innovation Solution
A hub assembly with a non-rotatably disposed electric component and a user input device electrically coupled to an electric circuit board, where the user input device is remotely located and does not include a wireless communication receiver, and a cable receiving passageway is provided to connect the electric component to the user input device without interfering with rotating parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless communication receiver is included in the user input device, then the device functionality is enhanced, but the manufacturing cost increases
Solution Approach 1:
A cable with communication lines serves as an intermediary connection between the user input device and the electric component. This wired communication approach replaces expensive wireless receivers while maintaining full device functionality and data transmission capabilities.
2Device complexity
If the user input device is located close to the electric component, then the electrical connection is simplified, but the user input device is difficult to operate and maintain
Solution Approach 1:
The user input device is positioned at the outer periphery of the hub assembly, utilizing the radial dimension, while the electric component remains at the center on the hub axle. This spatial arrangement in different radial positions allows easy user access and device operation while maintaining simplified electrical connection through the cable routed along the hub structure.
3Reliability
If the cable receiving passageway is provided in the hub axle, then the cable connection is protected from interference with rotating parts, but the hub assembly structure becomes more complex
Solution Approach 1:
The cable receiving passageway is formed as a hollow cavity within the hub axle structure. The cable is nested inside this passageway, which is itself nested within the hub axle. This nested configuration protects the cable from rotational interference while integrating the protection feature into the existing hub axle without adding separate external structures.
Data Source
AI summary
A hub assembly is provided for a human-powered vehicle. The hub assembly is basically provided with a hub axle, a hub body, an electric component and a user input device. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The user input device is electrically coupled to the electric component.