Collapsible Bicycle Travel Case with Rigid Inner Framework
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Solution Overview
Problem
Current bicycle travel cases require extensive disassembly, offer inadequate protection, and are cumbersome, leading to damage and inconvenience during airline travel, as they need to be opened for inspection, violating weight limits and increasing the risk of damage.
Innovation Solution
A lightweight, collapsible bicycle transport case with a rigid inner framework and mesh panels providing high impact protection, allowing minimal disassembly and easy inspection without opening, featuring self-latching mechanisms and shock absorption to secure the bicycle during transit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a hard-shell travel case is used, then impact protection is improved, but device complexity and storage volume increase
Solution Approach 1:
The case uses a composite structure combining a rigid inner framework (aluminum or steel tubing) with a flexible outer shell (fabric or plastic). This composite design provides hard-shell level protection without the bulk and complexity of a fully rigid case, allowing the bicycle to be securely restrained while maintaining a more compact and manageable structure.
Solution Approach 2:
The case divides the bicycle into separate compartments and uses an inner framework that segments the structure into modular sections. The framework includes crossbars and diagonal supports that create distinct zones for protecting different bicycle components, enabling targeted protection without requiring a monolithic hard shell.
2Strength
If extensive disassembly is required for packing, then protection is improved, but loss of time increases
Solution Approach 1:
The case includes pre-configured mounting points, attachment slots, and a framework structure that is prepared in advance to accommodate a minimally disassembled bicycle. Users simply need to attach the bicycle to the pre-positioned attachment points rather than performing extensive disassembly and reassembly procedures.
Solution Approach 2:
The case features adjustable and movable components within the inner framework that can be dynamically configured to fit different bicycle sizes and configurations. The adjustable crossbars and repositionable mounting points allow the case to adapt to various bicycle setups without requiring complete disassembly.
3Volume of moving object
If a soft-sided bag is used, then storage volume is reduced, but strength and protection deteriorate
Solution Approach 1:
The case combines a flexible outer shell (fabric or plastic) with a rigid inner framework to achieve the best of both soft-sided compactness and hard-shell protection. The outer shell provides a compact form factor and flexibility for storage, while the inner aluminum or steel framework delivers the necessary impact protection and structural integrity.
Solution Approach 2:
The protective structure is segmented into multiple components: the flexible outer shell, the rigid inner framework with crossbars, and the attachment mounting points. This segmentation allows the case to maintain a compact soft-sided appearance while incorporating hard protective elements at critical locations.
4Adaptability or versatility
If the case must be opened for inspection, then compliance with airline regulations is improved, but object-affected harmful factors increase
Solution Approach 1:
The case includes a removable cover that can be detached in advance, allowing TSA officers to inspect the bicycle through the open framework without removing the bicycle from its protective position. The removable cover is designed to be easily removed and reattached, facilitating inspection while maintaining protection during transit.
Solution Approach 2:
The removable cover acts as an intermediary element between the bicycle and the inspection process. It can be removed to allow inspection by TSA officers while the inner framework and attachment points remain in place to protect the bicycle. The cover serves as a temporary barrier that can be selectively removed for inspection purposes.
5Weight of moving object
If the case is made lightweight, then weight is reduced, but strength and protection deteriorate
Solution Approach 1:
The case uses lightweight materials such as aluminum tubing for the inner framework instead of heavier steel or metal alloys. The aluminum provides sufficient strength and rigidity for protection while being significantly lighter than traditional metal construction. The flexible outer shell is also designed to be lightweight while providing necessary durability.
Solution Approach 2:
The protective structure is divided into lightweight segments including the inner framework, crossbars, and attachment points, each optimized for maximum strength-to-weight ratio. The modular segmented design allows for lightweight construction while maintaining overall structural integrity through strategic placement of support elements.
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 case offers superior protection, minimizes disassembly requirements, complies with airline weight limits, and facilitates intuitive inspection, reducing the risk of damage and injury while ensuring the bicycle remains secure and protected throughout travel.
Implementation Method 1
The mesh panels are tensioned so that they provide impact resistant surfaces surrounding the inner contents of the travel case
Implementation Method 2
an inner framework of a substantially rectangular shape of a predetermined size to encompass a range of bicycle frame sizes, with bicycle wheels removed, and handlebars still installed. This provides a rigid skeletal structure
Implementation Method 3
featuring self-latching mechanisms and shock absorption to secure the bicycle during transit
Data Source
AI summary
An improved bicycle travel case for protecting a partially disassembled bicycle during storage and travel. A skeletal tubular inner framework forms a rigid perimeter defining a shape of the case and is foldable for storage. The framework has an upper and lower section, joined with a hinged connection and a self-latching connection. Mesh panels are installed within planar surfaces defined by the framework, creating impact resistant surfaces encircling the case. A removable fabric cover encloses the inner framework and mesh panel assemblage. Upon removal of the fabric cover for inspection during airline travel, the bicycle is on prominent visual display beneath its protective framework and mesh case, nullifying the need to open the case and physically handle it. The bicycle is releasably locked in the case by two fork mounts that isolate the bicycle from damaging forces. A releasably lockable mount also secures bicycle wheels inside the case.