| 摘要 |
FIELD: construction. ^ SUBSTANCE: sectional stairs "Nevidimka" consist of one section including a fixed member attached with the fastener to buildings, facilities or their parts and hinged to horizontal rotation axis to one transverse member from the link which is hinged by means of fastener to movable longitudinal member, at least one member (with finishing material or without it) covering the section in folded position, at least one device fixing the transverse member in unfolded position, at least one lock fixing the transverse and longitudinal movable member in folded position, at least one device for moving to folded or unfolded position at least from one and the same location. ^ EFFECT: completing high-rise buildings with rescue devices, compactness, aesthetic design of rescue device, and possibility of equipping available buildings with rescue devices. ^ 21 cl, 21 dwg |
