Bicycle Cogset Assembly via Molded Integration
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Solution Overview
Problem
The existing bicycle cogset assembly process is time-consuming and labor-intensive, requiring manual riveting and precise matching of parts, which is costly and inefficient.
Innovation Solution
A modularized bicycle cogset design featuring a sprocket base with connecting arms and teeth, where sprockets are integrated using non-riveting methods, such as ABS material molding, to simplify assembly and reduce material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual riveting is used to assemble sprockets, then the assembly is secure and reliable, but the assembly process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent extracts and eliminates the riveting operation from the assembly process by using a molded integration design where the sprocket is formed as a single piece with the base, removing the need for separate fastening operations while maintaining structural integrity
Solution Approach 2:
The patent merges the sprocket and base into a single integrated component through mold filling, combining what were previously separate parts (sprocket, base, and rivets) into one unified structure that is manufactured as a single piece
2Adaptability or versatility
If multiple separate parts are used for modular assembly, then the design is flexible and adaptable, but the number of parts increases leading to more complex assembly
Solution Approach 1:
The patent combines multiple parts (base, sprocket, and connecting elements) into a single integrated component manufactured through mold filling, reducing the number of discrete parts while preserving the modular functionality through the integrated design
Data Source
AI summary
A bicycle cogset comprises a sprocket base, a first sprocket, and a second sprocket. A periphery of the sprocket base is provided with a plurality of connecting arms, and each of the connecting arms is provided with at least one first and one second connection hole respectively. The first sprocket has a first outer portion and a first inner portion, the first outer portion provided with a plurality of first teeth, the first inner portion provided with a plurality of first insertion members, and the first insertion members disposed in the first connection holes. The second sprocket has a second outer portion and a second inner portion, the second outer portion provided with a plurality of second teeth, the second inner portion provided with a plurality of second insertion members, and the second insertion members disposed in the second connection holes.