Lifting mechanism for scissor attic stairs, attic stairs, and method of lifting attic stairs using a lifting mechanism

Abstract

The subject-matter of the invention comprises a hoist mechanism for attic scissor stairs, attic stairs and method of hoisting attic stairs concertina ladder using hoist mechanism, wherein the hoist mechanism with an electric drive is constructed out of load bearing frame (5), half-frame (62) with electric drive (72) suspended from it, and half-frame (61) is constructed out of lateral stile (61) and two side stiles (62), so that half-frame side stiles (62) are mounted using articulated joints to load bearing frame (5) wherein each side stile (62) features lifting system (13) for lifting attic stairs concertina ladder (3), wherein lifting system (13) assumes a passive and an active position during hoist mechanism operation.

Dependencies are inferred from the claim text.