Laterally extensible ladder

Details Laterally extensible ladder Laterally extensible ladder

1999-09-10

2000-10-10

Chin-Shue, Alvin

Fire escape, ladder, or scaffold

Unitary foldable, rigid scaffold or ladder

Collapsible ladder

182194, 182195, E06C 110

Patent

active

06129179&

ABSTRACT:
A laterally extensible ladder comprises first and second uprights having a plurality of adjacent rung assemblies mounted therebetween. Each rung assembly includes a first hollow rung element that defines a rung axis and a second rung element received in the first rung element. The second rung element is movable along the rung axis for adjusting the length of the rung assembly, hence adjusting the width of the ladder. At least one rung assembly includes a structure for releasably holding the rung assemblies at a selected width configuration.

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