ES270141U - Emergency stairs. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Emergency ladder, for use in a building, characterized in that it comprises in combination: a storage box adapted to anchor in an opening formed in the floor of a floor, balcony or similar of said building; upper and lower cover assembled hingedly to the side of said box corresponding to the floor surface and to the side corresponding to the surface of the ceiling, linkage mounted hingedly to said covers respectively, upper and lower to connect operatively the covers and open and close the lid lower when the opening or closing of the upper lid takes place, said linkage maintaining said upper lid substantially vertically when the lid is open; a ladder telescopically extensible; comprising a plurality of telescopically coupled pieces of pipe of different cross-section decreasing downwards, each of said pipe sections maintaining a rung at the upper end and the upper section of tubes being supported rotatably on said box, whereby when said ladder is stored in said box, each of the pieces of tube is retracted telescopically in the adjacent upper tube section that is to be supported in said lower cover and when said upper and lower covers are opened, said section of the tube is allowed to extend telescopically towards the floor surface of the lower floor of the two adjacent floors in question or next to it; a descent control to initiate the descent of said ladder, to control the speed of descent of extension of the ladder and to retract the ladder for its storage upon the closing of said upper and lower covers. (Machine-translation by Google Translate, not legally binding)