Bicycle Take-Up Device for Independent Cable Control
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Solution Overview
Problem
Current bicycle operating systems lack an efficient mechanism for independently controlling bicycle components, such as derailleurs, using a separate take-up device that can move control cables in response to operations from multiple operating devices, leading to complex and cumbersome designs.
Innovation Solution
A bicycle operating system that includes a take-up device configured within a tubular part of the bicycle body, operatively coupled to multiple operating devices via mechanical, signal, or fluid control elements, allowing independent or simultaneous movement of control cables to control bicycle components like derailleurs, simplifying the system and enhancing operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a separate take-up device is used to control multiple bicycle components, then the system structure is simplified and operational efficiency is improved, but the device complexity increases due to the need for independent control mechanisms
Solution Approach 1:
The take-up device is designed as a universal control mechanism that can operate multiple bicycle components (derailleurs, brakes, etc.) through a single device. The device includes multiple take-up members that can independently move control cables to different components, allowing one device to perform multiple functions and simplifying the overall system structure while maintaining operational efficiency
2Measurement precision
If multiple operating devices are used to control different bicycle components, then precise control is achieved, but the system becomes cumbersome and complex
Solution Approach 1:
Multiple operating devices are merged into a single take-up device that contains multiple take-up members. Each take-up member can independently control a specific bicycle component while being housed within one integrated device structure. This merging approach maintains precise control over each component while reducing the overall number of separate devices and simplifying the system
3Volume of moving object
If the take-up device is integrated into the bicycle body, then the system becomes more compact, but the ease of maintenance decreases
Solution Approach 1:
The take-up device is designed as a modular, separable component that can be independently removed from the bicycle body. The device includes distinct take-up members that can be accessed and maintained separately. This segmentation allows the device to be compact when installed while enabling easy removal and maintenance of individual components without disassembling the entire bicycle
4Device complexity
If control cables are moved by a centralized take-up device, then mechanical complexity is reduced, but the length of control elements increases
Solution Approach 1:
The control cables are routed through the bicycle frame structure, utilizing existing tubular spaces and pathways. The take-up device is positioned to minimize cable routing distances by leveraging the nested structure of the bicycle frame, allowing control cables to pass through internal channels rather than external routes, thereby reducing the effective length of control elements while maintaining the centralized control architecture
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
The system simplifies the structure of the operating devices and allows for precise control of bicycle components, improving shifting efficiency and reducing mechanical complexity, while allowing for compact and easy maintenance of the take-up device.
Implementation Method 1
The first control element comprises a mechanical control cable configured to transmit an operating force from the first operating device to the take-up device
Data Source
AI summary
A bicycle operating system comprises a first operating device and a take-up device. The take-up device is configured to be provided in a tubular part of a bicycle body. The take-up device is configured to move a control cable configured to be connected to a bicycle component. The take-up device is operatively coupled to the first operating device via a first control element.