| 摘要 |
An improved expandable mobile home having hinged longitudinal joints between a central roof supported by a plurality of spaced sloping rafters and horizontally extending purlins secured on, and extending transverse to, the rafters, and maintained elevated by a plurality of aligned, spaced vertical posts, and a pair of folding roofs having a plurality of parallel extension rafters each corresponding to one of the spaced sloping rafters supporting the central roof, between a central floor and a pair of folding floors, and between the pair of folding floors and a pair of folding walls, and having hinged vertical joints between central end walls and pairs of folding end walls, the improvement residing in specific structures by which the mobile home is maintained in weather-tight state whether collapsed for transport or expanded for residence use. A particular feature of the invention lies in a weather sealer arrangement used between the central roof and the folding roofs: at each hinged joint a cavity is provided in the central roof and a flexible resilient sealer is secured to the folding roof for flexing and sliding in the cavity upon pivotal movement between the members. By preference, the sealer comprises a batt of flexible resilient material and a sheet of flexible impervious material fastened to that surface of the batt which becomes convex when the roof is folded.
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