Fold-Out Car Trunk Extension Frame for Overnight Living Space
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Solution Overview
Problem
The limited interior space in family automobiles, such as sedans and small SUVs, makes them inadequate for overnight sleeping, personal toileting, and bathing, especially in open areas or during long trips, due to the absence of bathroom facilities and insufficient space for such needs.
Innovation Solution
An automobile space extension mechanism is developed, which includes a space extension assembly and an adapter assembly that unfolds from the tail compartment of the vehicle, providing additional interior space through a frame structure when needed, connected via slide rail or guiding slide positioning plates, allowing for increased space for sleeping, toileting, and bathing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a regular family sedan or small SUV is used, then the automobile can smoothly enter the garage and be conveniently parked, but the interior space is limited and cannot meet demands for overnight sleeping, personal toileting, and bathing
Solution Approach 1:
The patent applies the dynamics principle by designing a space extension assembly that can transform from a folded state during normal driving to an unfolded extended state during overnight stops. The assembly includes movable connection structures that allow dynamic reconfiguration of the interior space, enabling the vehicle to adapt its volume based on operational needs without permanently increasing its structural complexity
Solution Approach 2:
The space extension mechanism is divided into multiple independent components including side plates, back plates, bottom plates, and support legs that can be independently positioned and connected. This segmentation allows the extension structure to be compact during normal use and easily deployed when needed, resolving the contradiction between interior volume and structural complexity
2Reliability
If the space extension assembly is unfolded to provide additional interior space, then stability and privacy are provided for overnight accommodations, but the device complexity increases due to multiple connection components
Solution Approach 1:
The connection structure is segmented into multiple independent components (side plates, back plates, bottom plates, support legs) that can be independently positioned and connected through simple connection mechanisms. This segmentation allows each component to contribute to overall stability while keeping individual connection elements simple and manageable
Solution Approach 2:
The space extension assembly is pre-configured with connection structures and support elements in a compact folded state, so that when deployed, the components are already positioned to provide immediate stability. The support legs and connection plates are pre-designed to interlock in a stable configuration, ensuring reliability without requiring complex assembly procedures
Data Source
AI summary
An automobile space extension mechanism is provided. The automobile space extension mechanism includes a space extension assembly and an adapter assembly. The space extension assembly is movably installed at a tail of a compartment of an automobile body through the adapter assembly; and in use, when a rear cover of the compartment is opened, the space extension assembly is unfolded backwards and downwards into a frame structure through pulling and flipping operations, and an opening side of the frame structure faces the compartment of the automobile body and is communicated to interior space of the compartment.