Convertible fold-up ladder

Details Convertible fold-up ladder Convertible fold-up ladder

E - Fixed Constructions

06

C

228/8

E06C 1/383 (2006.01) E04G 1/30 (2006.01) E06C 1/39 (2006.01) E06C 1/56 (2006.01)

Patent

CA 1215954

ABSTRACT A convertible fold-up ladder includes a number of U-shaped modules of decreasing size as they approach the top of the ladder. Hinges movably connect locking devices that are provided to connect them lock each of the modules together. Each locking device includes a latch having a rounded end portion, a latch release means and an aperture which mates with the latch, the aperture being located in at least one side rail of each module and in alignment with the latch located in an adjacent module when the ladder is extended into a substantially upright ladder. The modules have a curved outer surface to facilitate entrance of the latch into the aperture, and the ladder is adapted to be collapsed into a substantially one-plane configuration by folding one-module within the other.

453273

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