Deployable Side Wall Panels for Expandable Cabins Without Gaps
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Solution Overview
Problem
Conventional expandable structures, such as RVs, face limitations in expanding living space without sacrificing sound and weather protection, often requiring enlarged initial vehicle cabins and restricted slide-out areas.
Innovation Solution
An expandable structure with a main structure and a first expansion section, featuring panels that stack with planar faces adjacent in a retracted configuration, utilizing a tightening system to push panels together after deployment, and a sliding track with pins and cables to facilitate smooth expansion and contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the initial vehicle cabin is enlarged to augment slide-out area, then the slide-out area is increased, but the available cabin space is reduced proportionally
Solution Approach 1:
The side wall is divided into multiple deployable panels that can be stacked vertically. This segmentation allows the wall to expand outward to increase slide-out area while maintaining a compact retracted profile that preserves cabin space, resolving the contradiction between expansion area and interior volume.
Solution Approach 2:
The wall panels are arranged in a vertical stack configuration, utilizing the vertical dimension for storage. When retracted, the panels stack upward rather than occupying horizontal cabin space. When deployed, they expand horizontally to provide additional slide-out area, effectively trading vertical space for horizontal expansion capability.
2Device complexity
If traditional RV configurations are used, then the structure is simple, but sound and weather protection is compromised due to gaps between panels
Solution Approach 1:
A tightening system acts as an intermediary mechanism between the wall panels. This system applies compression forces to push adjacent panels together, eliminating gaps that would otherwise compromise sound and weather protection. The tightening system includes components such as cables, turnbuckles, or hydraulic actuators that distribute compression forces across the panel assembly.
Solution Approach 2:
The distance and relative positioning between adjacent wall panels are dynamically adjusted through the tightening system. By changing the spacing parameter from gaps to tight contact, the system maintains both structural simplicity and effective sealing against sound and weather elements.
3Volume of moving object
If wall panels are deployed for expansion, then living space is increased, but gaps between panels compromise insulation properties
Solution Approach 1:
The tightening system serves as a mediator that maintains thermal and acoustic insulation by eliminating gaps between deployed wall panels. By applying continuous compression, it ensures that even when panels are extended to increase living space, the insulation properties are preserved through tight panel contact.
Solution Approach 2:
The spacing parameter between wall panels is dynamically controlled to maintain optimal insulation. When panels are deployed to expand living volume, the tightening system adjusts the inter-panel distance to minimize gaps, thereby reducing energy loss while preserving the expanded living space.
Data Source
AI summary
An expandable structure has an expansion section with side wall panels that can stack into and be deployed from a wall enclosure central housing. A track can be deployed on the wall enclosure for facilitating the movement of wall panels into and out of the central housing. This innovative configuration not only enables efficient and accurate storage of each wall panel within the central enclosure but also concurrently serves as the foundational support structure for the cabin. After the wall panels are deployed and the structure is fully expanded, the wall panels can be tightened together to provide sound and weather protection.