Removable Switch Unit for Bicycle Control Device Maintenance
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Solution Overview
Problem
Existing bicycle control devices require complex operations for the inspection or replacement of switches, making maintenance and repair difficult.
Innovation Solution
A self-standing switch unit is incorporated, allowing for easy inspection and replacement of switches, with a removable carrier and elastic actuation elements for improved accessibility and protection, along with a sealing mechanism for secure cable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If switches are integrated into the support body structure, then device integration is improved, but ease of repair deteriorates
Solution Approach 1:
The control device is divided into distinct functional modules: the support body, the switch unit, and the actuation member unit. This segmentation allows the switch unit to be independently accessed and replaced without disassembling the entire device, resolving the contradiction between integration and repairability.
Solution Approach 2:
The switch unit is extracted as a separate removable component from the support body structure. This extraction enables technicians to remove and replace faulty switches without complex operations involving the entire control device, while still maintaining an integrated appearance when assembled.
2Volume of moving object
If multiple components are assembled into a compact unit, then space utilization is improved, but ease of operation deteriorates
Solution Approach 1:
The actuation member is positioned to extend laterally from the compact control device body, utilizing a different spatial dimension. This allows the actuation member to be easily accessible from the side while keeping the main body compact, resolving the contradiction between compactness and operational accessibility.
3Ease of operation
If components are exposed for easy access, then ease of operation is improved, but protection from harmful factors deteriorates
Solution Approach 1:
A flexible sealing membrane covers the internal components including the switch and actuation element, providing protection against dust and contaminants. The membrane is designed to be actuated through by the user, allowing easy operation while maintaining protection. This resolves the contradiction between accessibility and protection.
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
Facilitates easier maintenance and repair by allowing individual switch replacement without replacing the entire unit, while ensuring secure electrical connections and enhanced protection of components.
Implementation Method 1
a respective actuation element is arranged between the switch and the manual actuation member. More preferably, the actuation element is elastic.
Data Source
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AI summary
A control device (1) for a bicycle for imparting at least one electrical-electronic control to at least one bicycle equipment is provided, comprising a support body (2), at least one switch (47, 48), and a respective manual actuation member (34, 35, 70), characterized in that the switch (47, 48) and the manual actuation member (34, 35, 70) are included in a switch unit (30) so as to be integrally removable from the support body (2). By so including said components (47, 48, 34, 35, 70) in a self-standing switch unit (30), in the case of a failure or malfunction of the switch (47, 48), the switch unit (30) can be easily inspected and possibly replaced.