Collapsible staircase, notably for a vehicle such as an aircraft
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United States of America Patent
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Jan 6, 2015
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app pub date -
Dec 26, 2007
filing date -
Dec 26, 2006
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Abstract
A collapsible staircase is provided with a set of flat parts, with each of the parts intended to function as steps. Each flat part can be moved between a first position and a second position. All of the flat parts are substantially coplanar when the parts are in the first position, and the parts are disposed above each other and at a distance from each other when the parts are in the second position. A retractable holding handle is also provided and driven together with the flat parts.
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