Bicycle Seat Pack Structure for Stable Saddle and Seatpost Mounting
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Solution Overview
Problem
Conventional seat packs for bicycles suffer from issues such as lateral and vertical instability, susceptibility to mud clogging, excessive weight, propensity for breakage, limited compatibility with various seat posts and saddles, time-consuming fitting and removal processes, and vulnerability to damage from the rear wheel and saddle.
Innovation Solution
A seat pack design comprising a bag component with integrated structural support and mounting portions for secure attachment to both the seatpost and saddle, using resilient straps and buckles that accommodate different positions and shapes, and a rigid internal support structure to maintain stability and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a conventional seat pack is used, then it can be attached to the bicycle, but it suffers from lateral and vertical instability
Solution Approach 1:
The seat pack is divided into separate functional components: a bag component for storage and a structural support component for stability. The structural support component includes dedicated mounting portions with straps and buckles that independently secure the bag to both the seatpost and saddle, resolving the instability issue through segmented functional design
Solution Approach 2:
The mounting portions are integrated into the structural support component, combining the attachment function with the support structure. This merging ensures that the bag and support component work together as a unified system that maintains stability through coordinated attachment to both seatpost and saddle
2Object-affected harmful factors
If conventional seat packs are used, then they can be attached to the bicycle, but they are susceptible to mud clogging
Solution Approach 1:
The mounting portions are designed with specific local characteristics - the straps and buckles are positioned and shaped to minimize exposure to mud. The structural support component's geometry and material selection create surfaces that are less susceptible to mud accumulation, addressing the harmful factor at critical locations
3Weight of moving object
If conventional seat packs are used, then they can be attached to the bicycle, but they have excessive weight
Solution Approach 1:
The structural support function is extracted from the bag component and placed in a separate structural support component. This extraction allows the bag to be made from lighter materials while the support structure provides the necessary stability, reducing overall weight by optimizing each component's material selection
Solution Approach 2:
The seat pack utilizes composite construction combining lightweight bag materials with strategically placed structural support elements. The structural support component uses materials optimized for strength-to-weight ratio, creating a composite system that achieves stability without excessive weight
4Adaptability or versatility
If conventional seat packs are used, then they can be attached to the bicycle, but they have limited compatibility with various seat posts and saddles
Solution Approach 1:
The mounting portions are designed with universal attachment capabilities - the straps and buckles can accommodate various seatpost diameters and saddle types. The structural support component's geometry and adjustment mechanisms provide multi-functionality, allowing the same design to work across different bicycle configurations
Solution Approach 2:
The mounting system incorporates adjustable and flexible elements that can adapt to different seatpost and saddle configurations. The dynamic adjustment capabilities of the straps and buckles allow the seat pack to maintain secure attachment across a wide range of bicycle components, enhancing compatibility
5Ease of operation
If conventional seat packs are used, then they can be attached to the bicycle, but the fitting and removal processes are time-consuming and tricky
Solution Approach 1:
The structural support component is pre-formed with integrated mounting portions that are ready for immediate attachment. The bag component is pre-configured to receive the structural support component, so that during installation, the user only needs to attach the pre-prepared assembly to the bicycle, significantly reducing the time required for fitting
6Strength
If conventional seat packs are used, then they can be attached to the bicycle, but they are vulnerable to damage and wear from the rear wheel and saddle
Solution Approach 1:
The structural support component is designed with protective features that cushion against damage from the rear wheel and saddle. The geometry and material selection of the support structure create a protective barrier that absorbs impact and reduces wear on both the seat pack and the bicycle components it contacts
Data Source
AI summary
There is provided a seat pack for a bicycle, the seat pack comprising: a bag component defining an internal volume and having a main opening at one end; and a structural support component received within the internal volume; wherein an outer surface of the structural support component is provided with a first mounting portion for attachment to a seatpost of the bicycle and a second mounting portion for attachment to a saddle of the bicycle; wherein the bag component comprises one or more openings which receive the first mounting portion and the second mounting portion such that the first and second mounting portions project externally from the bag component.