Bicycle Hydraulic Operating Device Compact Handlebar Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bicycle hydraulic operating devices lack a compact design that efficiently integrates with bicycle handlebars, often occupying excessive space and not providing a secure mounting mechanism for banjos and shift units.
Innovation Solution
A bicycle hydraulic operating device featuring a bracket with a curved mounting surface and a hydraulic unit that protrudes from the handlebar, incorporating a banjo attachment bolt for secure attachment and a dual-operating mechanism for hydraulic and shift unit control, allowing for a more compact design while maintaining functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the hydraulic unit is integrated into the bracket mounted on the handlebar, then the device occupies less space and has a more compact design, but the mounting mechanism must be sufficiently secure to hold the banjo and shift unit
Solution Approach 1:
The patent combines the hydraulic unit, banjo attachment, and shift unit mounting into a single integrated bracket assembly that mounts to the handlebar. The bracket serves multiple functions: mounting the hydraulic unit, securing the banjo via a banjo attachment bolt, and providing a mounting surface for the shift unit. This merging of functions into one compact structure reduces overall space occupation while maintaining secure mounting capabilities through the integrated design.
2Volume of moving object
If the hydraulic unit protrudes from the mounting surface toward the handlebar, then the design is more compact, but the banjo attachment portion must be positioned on the opposite side of the bracket
Solution Approach 1:
The patent positions the banjo attachment portion on the opposite side of the bracket from the hydraulic unit protrusion. The hydraulic unit protrudes toward the handlebar from one side of the bracket, while the banjo attachment portion is located on the opposite side, allowing the banjo to be secured from behind the bracket. This spatial arrangement in different dimensions enables compact integration without interfering with each other's functionality.
3Ease of operation
If the bracket includes a gripping portion for rider operation, then the shift unit can be operated by the rider, but the first operating member must pivot in multiple directions to operate both hydraulic unit and shift unit
Solution Approach 1:
The first operating member is designed with multi-functionality to operate both the hydraulic unit and the shift unit. It can pivot in a first direction to operate the hydraulic unit and in a second direction to operate the shift unit. This universal operating member consolidates control functions into a single component that the rider operates from the gripping portion, reducing the number of separate controls needed.
4Reliability
If the mounting surface has a curved shape to fit the handlebar, then the bracket secures better to the handlebar, but the hydraulic unit must protrude through the curved surface
Solution Approach 1:
The bracket features a curved mounting surface specifically at the contact area with the handlebar to match the handlebar's curvature and ensure secure mounting. The hydraulic unit protrudes through this curved mounting surface from the interior side toward the exterior side. The curved shape is localized to the mounting interface, while the rest of the bracket maintains its structural integrity to support the hydraulic unit and other components.
Data Source
AI summary
A bicycle hydraulic operating device comprises a bracket and a hydraulic unit. The bracket is configured to be mounted to a bicycle handlebar and includes a mounting surface contactable with the bicycle handlebar. The hydraulic unit is provided at the bracket to at least partially protrude from the mounting surface toward the bicycle handlebar in a state where the bracket is mounted to the bicycle handlebar.