Collapsible ladder
A relatively simple, lightweight, portable, collapsible ladder includes a plurality of H-shaped sections (1) pivotally interconnected end-to-end to define a flat bundle in the stored or non-use condition. The sections can be unfolded to a flat, extended condition. In the extended condition, torsion...
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Main Author | |
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Format | Patent |
Language | English French German |
Published |
12.06.1991
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Subjects | |
Online Access | Get full text |
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Summary: | A relatively simple, lightweight, portable, collapsible ladder includes a plurality of H-shaped sections (1) pivotally interconnected end-to-end to define a flat bundle in the stored or non-use condition. The sections can be unfolded to a flat, extended condition. In the extended condition, torsion springs (23) cause the sides of the sections (1) to fold inwardly to define side bars (2) having U-shaped cross sections. By reversing the process, the ladder can readily be restored to the folded, storage condition. |
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Bibliography: | Application Number: EP19890312634 |