Bicycle Saddle Bag Fixing Device with Segmented Rods
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Solution Overview
Problem
Conventional bicycle saddle bags with protrusions for rigid abutting often wobble laterally during cycling, especially when long, due to their edge-mounted design.
Innovation Solution
A bicycle auxiliary fixing device featuring a body with a supporting rod unit, including non-rotatable supporting rods and a sliding groove system, which secures the saddle bag by clamping it to the bicycle frame, preventing lateral movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the saddle bag uses protrusions for rigid abutting, then the saddle bag can be securely positioned, but the saddle bag wobbles laterally during cycling when it is relatively long
Solution Approach 1:
The invention transitions from edge-mounted protrusions (one-dimensional positioning) to a multi-point clamping system with supporting rods extending along the length of the saddle bag. This distributes the fixing points across multiple dimensions, preventing lateral wobble while maintaining positioning security.
Solution Approach 2:
The saddle bag is divided into multiple sections with supporting rods at different locations (front, middle, and rear sections). Each section has its own clamping mechanism, breaking the single rigid structure into segmented flexible fixing points that can independently stabilize different parts of the bag.
2Volume of moving object
If the saddle bag is made relatively long to increase capacity, then more storage space is available, but the saddle bag becomes more prone to lateral wobble
Solution Approach 1:
The long saddle bag is divided into multiple sections with supporting rods positioned at front, middle, and rear locations. Each section is independently clamped to the bicycle frame, preventing the entire long structure from wobbling as a single unit.
Solution Approach 2:
Different sections of the saddle bag have different fixing characteristics. The front section uses protrusion abutting for positioning, while intermediate and rear sections use supporting rods for lateral stabilization, creating localized fixing qualities throughout the length of the bag.
Data Source
AI summary
An auxiliary fixing device for a bicycle includes a body and a supporting rod unit. The supporting rod unit includes first and second supporting rods coupled to the body. Each of the first and second supporting rods includes a connecting portion, a supporting portion, and an extension portion between the connecting portion and the supporting portion. The extension portion of the first supporting rod has an end adjacent to the connecting portion of the first supporting rod and another end extending away from the second supporting rod. The extension portion of the second supporting rod has an end adjacent to the connecting portion of the second supporting rod and another end extending away from the first supporting rod.