Bicycle Handlebar Operating Device with Detachable Rotating Unit
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Solution Overview
Problem
Conventional bicycle operating devices, such as brake and gear shift devices, require separate attachments to the handlebar, complicating the configuration and making it difficult to create a simple and compact design.
Innovation Solution
A bicycle operating device comprising a first operating unit with a fixing part and a second operating unit that can be detachably attached and adjusted around the handlebar, eliminating the need for additional fixing members and allowing for a more compact design by integrating the second operating unit's rotating input part directly on the handlebar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate fixing members are used for each operating unit, then each unit can be securely fixed, but the handlebar configuration becomes complex
Solution Approach 1:
The patent combines multiple fixing functions into a single integrated fixing member that can simultaneously secure both the first operating unit (brake lever) and the second operating unit (gear shift lever). This merging approach eliminates the need for separate fixing members for each unit, thereby reducing handlebar configuration complexity while maintaining secure fixation of both units.
Solution Approach 2:
The fixing member is designed with multi-functionality to serve multiple purposes: it acts as a mounting structure for the brake lever, provides adjustment mechanisms for the gear shift lever position, and ensures secure fixation for both operating units. This universal design reduces the total number of components needed on the handlebar.
2Ease of operation
If the second operating unit uses a separate rotating shaft, then rotation is enabled, but the device size increases
Solution Approach 1:
The patent merges the rotating shaft function with the handlebar structure itself. The second operating unit (gear shift lever) is designed to rotate directly on the handlebar without requiring a separate, standalone rotating shaft. This integration eliminates the need for additional rotating components, reducing overall device size while maintaining full rotation capability for gear shifting operations.
3Adaptability or versatility
If multiple separate components are used for brake and gear shift functions, then each function can be independently optimized, but the overall structure becomes less compact
Solution Approach 1:
The patent applies a nested arrangement where the second operating unit (gear shift lever) is positioned within or adjacent to the structure of the first operating unit (brake lever assembly). The gear shift lever and its adjusting mechanism are integrated into the space occupied by or near the brake lever, allowing both functions to coexist in a compact configuration while maintaining independent operation and adjustment capabilities.
Data Source
AI summary
An operating device is provided that is configured to be attached to a handlebar of a bicycle. The operating device includes a first operating unit and a second operating unit. The first operating unit includes a first input part and a fixing part configured to be fixed on the handlebar. The second operating unit includes a second input part that is rotationally arranged around an axis of the handlebar. The second operating unit is detachably attached on the first operating unit.