Bicycle Wheel Mounting Member Damping Structure
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Solution Overview
Problem
Current bicycle frame manufacturing methods, especially those involving welding and complex suspension systems, face challenges such as increased weight, cost, and issues like bobbing, kickback, brake jack, and squatting due to complexity and weight, which affect productivity and durability.
Innovation Solution
A wheel mounting member with a damping structure is introduced, featuring a dropout with an axle insertion groove, a guide slot, a bracket with a protrusion, and elastic members that absorb impact, minimizing weight increase and simplifying the frame structure while addressing bobbing and brake jack phenomena.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full suspension frame is manufactured by separately forming front and rear triangular frames and adding suspension therebetween, then shock absorbing ability is improved, but structure complexity increases, productivity deteriorates, and weight increases
Solution Approach 1:
The patent combines the front and rear triangular frames into a single integrated frame structure, eliminating the need for separate frame formations and suspension addition. The wheel mounting member with damping structure is integrated directly into the unified frame, reducing structural complexity while maintaining shock absorbing ability through the elastic member mechanism.
2Reliability
If a full suspension frame is manufactured by separately forming front and rear triangular frames and adding suspension therebetween, then shock absorbing ability is improved, but productivity deteriorates
Solution Approach 1:
The integrated frame structure allows for simplified manufacturing where the frame is formed as a single unit rather than requiring separate formation of front and rear triangular frames followed by assembly. The damping structure is incorporated during the frame forming process itself, improving productivity while maintaining shock absorbing functionality.
3Reliability
If a full suspension frame is manufactured by separately forming front and rear triangular frames and adding suspension therebetween, then shock absorbing ability is improved, but weight increases
Solution Approach 1:
The patent integrates the damping function directly into the wheel mounting member of the unified frame structure, eliminating the need for separate suspension components. The elastic member provides shock absorbing ability within the frame itself, reducing overall weight compared to adding dedicated suspension systems to separate frames.
4Ease of manufacture
If traditional welding manufacturing method is used for bicycle frame, then manufacturing flexibility is maintained, but productivity deteriorates and manufacturing cost increases
Solution Approach 1:
The patent transitions from traditional welding manufacturing to a stamping-based manufacturing process. The frame is formed by stamping a plate member and bonding left and right portions, changing the manufacturing parameters from thermal/mechanical welding to forming and bonding operations. This improves productivity while the modular wheel mounting member design maintains manufacturing flexibility.
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 damping structure effectively reduces impact transmission to the rider, enhances durability, and minimizes weight and cost by integrating a shock-absorbing mechanism into the wheel mounting member, improving the overall performance of the bicycle frame.
Implementation Method 1
an elastic member that is inserted into the guide slot and elastically supports the protrusion, wherein the elastic member may absorb impact transmitted to the dropout
Data Source
AI summary
A wheel mounting member having a damping structure may include a dropout in which an axle insertion groove is formed at one side of a lower portion thereof, wherein a guide slot may be formed in a predetermined direction at a predetermined distance from the axle insertion groove; a bracket in which a protrusion inserted into the guide slot is formed at a lateral surface thereof; and an elastic member that is inserted into the guide slot and elastically supports the protrusion, wherein the elastic member may absorb impact transmitted to the dropout.