Bicycle Chain Stay Chamber for Unbroken Chain Installation
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Solution Overview
Problem
In traditional bicycle frames, mechanics must break and reassemble the chain to install it through the triangle formed by the seat tube, chain stay, and seat stay, which is time-consuming and inefficient.
Innovation Solution
The introduction of a drive side chain stay chamber, inside chain stay cutout, and outside chain stay cutout in the bicycle frame allows the chain to be inserted without breaking, enabling seamless routing from the outside chain stay cutout to the inside cutout and back, facilitating chain maintenance without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the chain is routed through the traditional triangle formed by seat tube, chain stay, and seat stay, then the chain must be broken to install, but this increases maintenance time and reduces efficiency
Solution Approach 1:
The chain stay is divided into two separate parts: an inner chain stay and an outer chain stay. The inner chain stay contains a chamber that receives the chain, while the outer chain stay has cutouts that allow chain access. This segmentation enables the chain to be installed without breaking by routing it through the chamber and cutouts.
Solution Approach 2:
The inner chain stay chamber acts as an intermediary structure between the inner and outer chain stays. It provides a pathway for the chain to pass through, facilitating chain installation and removal without requiring the chain to be broken, thus reducing maintenance time.
2Strength
If the chain stay is made as a single solid structure, then structural strength is maintained, but chain installation requires breaking the chain
Solution Approach 1:
The chain stay assembly is segmented into inner and outer components. The inner chain stay maintains structural strength while containing the chain chamber. The outer chain stay provides additional support with its cutout design. This segmentation allows both strength preservation and easy chain installation.
Solution Approach 2:
The inner chain stay is nested within the outer chain stay structure. The inner chain stay chamber is positioned inside the overall chain stay assembly, allowing the chain to be routed through the nested structure without compromising the external structural integrity of the chain stay.
Data Source
AI summary
An apparatus including a bicycle frame including a drive side chain stay. The drive side chain stay can include a drive side chain stay chamber, an inside chain stay cutout, an outside chain stay cutout; and a dropout. The drive side chain stay can be configured such that a chain of a bicycle including the bicycle frame can be inserted through the inside chain stay cutout, the drive side chain stay chamber, and the outside chain stay cutout without breaking the chain.