Foldable Rear Carrier Luggage Box With Stable Fabric Side Walls
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Solution Overview
Problem
Conventional luggage boxes attached to rear load carriers occupy significant space when not in use, making them cumbersome for transportation and storage.
Innovation Solution
A foldable luggage box design featuring deformable fabric side walls that can be folded between a rigid bottom and cover element, with support yokes and beam arrangements for stability, and attachment mechanisms for secure fastening to a rear load carrier, allowing for space-saving transport and storage configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the luggage box is designed with rigid structure and closed form to protect luggage, then the protection function is improved, but the space occupation when not in use increases
Solution Approach 1:
The luggage box employs dynamic side walls made of fabric that can be folded and collapsed when not in use, transforming the structure from a static enclosed form to a compact configuration. The side walls are connected to the rigid bottom and cover elements through flexible joints, allowing the box to transition between an expanded protective state and a collapsed space-saving state.
Solution Approach 2:
The side walls are constructed from fabric material instead of rigid panels, creating a flexible shell that can deform and fold. This flexible membrane structure maintains the enclosed protective function when extended but allows compact folding when collapsed, directly addressing the contradiction between protection and space occupation.
2Volume of stationary object
If the side walls are made of fabric to enable folding, then the space-saving transport configuration is improved, but the mechanical stability decreases
Solution Approach 1:
The luggage box employs different material qualities in different regions: rigid bottom and cover elements provide structural stability and shape, while flexible fabric side walls enable folding and space-saving configuration. This local differentiation of material properties allows the structure to simultaneously achieve mechanical stability where needed and flexibility where folding is required.
Solution Approach 2:
The luggage box combines rigid materials (for bottom and cover elements) with flexible fabric materials (for side walls) to create a composite structure. This composite design integrates the advantages of both material types: the rigid parts maintain structural integrity and stability, while the fabric parts enable folding and compact storage.
3Stability of the object's composition
If the side walls are connected over the entire circumference to ensure stability, then the mechanical stability is improved, but the ease of folding decreases
Solution Approach 1:
The side walls are divided into multiple segments or panels that can fold independently relative to each other. This segmentation allows the side walls to maintain circumferential connection for stability while enabling progressive folding through the segmented joints, reducing the complexity of folding the entire structure.
Data Source
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AI summary
The present invention relates to a luggage box (1), in particular for releasable attachment to a rear load carrier (36) to be mounted to a vehicle, the luggage box (1) comprising a rigid bottom element (2), a rigid cover element (3), and side walls (8) made of fabric, wherein the luggage box (1) is foldable between a use configuration, in which the bottom element (2) and the cover element (3) are spaced apart from one another and the side walls (8) connect the bottom element (2) and the cover element (3), thus forming a luggage receiving space inside, and a transport configuration, in which the cover element (3) lies on the bottom element (2) and the side walls (8) are folded in between the cover element (3) and the bottom element (2) and a rear load carrier (36) for mounting to a vehicle.