Hydraulic Pressure Control Unit for Bicycle Braking
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Solution Overview
Problem
Conventional bicycle braking systems with hydraulic pressure control units face challenges in connecting the unit to the bicycle while maintaining protection and design integrity, often resulting in increased protrusion due to the use of adapters.
Innovation Solution
The hydraulic pressure control unit incorporates a base body with internal flow paths, inlet and outlet valves driven by coils, a coil casing, and a fixing member that forms a columnar space for secure attachment, reducing protrusion by integrating the unit seamlessly with the bicycle's structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an adapter is used to connect the hydraulic pressure control unit to the bicycle, then the connection flexibility is improved, but the protruding amount of the hydraulic pressure control unit increases
Solution Approach 1:
The fixing member integrates multiple functions into a single component: it serves as both the mounting structure for the hydraulic pressure control unit and the connection interface with the bicycle. The columnar space is formed by the combination of the fixing member's outer surface and the coil casing's inner surface, eliminating the need for separate adapters and reducing overall protrusion.
Solution Approach 2:
The coil casing is positioned within or alongside the fixing member structure, with the columnar space formed between their surfaces. This nested arrangement allows the hydraulic pressure control unit to be compactly integrated into the bicycle's brake system while minimizing protrusion.
2Adaptability or versatility
If an adapter is used to connect the hydraulic pressure control unit to the bicycle, then the connection flexibility is improved, but the design and protection are compromised
Solution Approach 1:
The fixing member serves as both the mounting structure and the protective interface with the bicycle. By integrating the connection function directly into the hydraulic pressure control unit's structure rather than using a separate adapter, the design maintains integrity and provides adequate protection while achieving connection flexibility.
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
This configuration enhances the freedom of connection and reduces protrusion of the hydraulic pressure control unit, improving the integration and aesthetics of the braking system on bicycles, particularly when executing antilock braking control.
Implementation Method 1
an inlet valve which is attached to the base body, is opened and closed when the antilock braking control is executed, and is driven by a first coil; an outlet valve which is attached to the base body, is opened and closed when the antilock braking control is executed, and is driven by a second coil
Data Source
AI summary
A hydraulic pressure control unit where a degree of freedom in connection to a bicycle is improved is provided. A braking system including such a hydraulic pressure control unit is also provided. A bicycle including such a braking system is also provided.A hydraulic pressure control unit (110) of a braking system mounted on a bicycle and capable of executing an antilock braking control includes a base body (120), a coil casing (136) in which an inlet valve and an outlet valve are accommodated, and a fixing member (139). The fixing member (139) is joined to the coil casing (136) or the base body (120) in a state where a columnar space (155) with both ends opened is formed between a partial region of an outer surface of the coil casing (136) or the base body (120) and a partial region of an outer surface of the fixing member (139).