PREFABRICATED STAIR HAVING MOVABLE STAIR PANEL

摘要

Provided is a prefabricated stair having a stair panel horizontally movable to allow an installation operation of a prefabricated stair and construction work for installing a wall surface of a stair case in parallel to facilitate the installation of the prefabricated stair and construction of the stair case, shorten a construction period of the prefabricated stair and the stair case, and allow a stringer frame, each stair prop and each stair panel to be disassembled and re-used when the stair case is torn down. The prefabricated stair having a movable stair panel, wherein a plurality of stair props is installed at regular intervals on both stringer frames installed inside a staircase of a building to be inclined at a predetermined angle and a plurality of movable stair panels is installed on each stair prop to be moved, comprises: the stair props fixedly installed to be spaced apart from one another on each stringer frame, and having one or more adjustment spaces and cutaway portions opening the adjustment spaces upwards; a fixing bolt provided such that a head portion thereof is positioned in each of the one or more adjustment spaces of the stair props and a male screw portion protrudes upwards through each of the cutaway portions; one or more movement adjusting units including supports each having an insertion space opened at a predetermined interval to allow the male screw portion of the fixing bolt to be inserted therein and symmetrically formed to be exposed from the bottom of the stair case and a slide guide groove formed to extend in the horizontal longitudinal direction of the stair case and allowing the stair panel to be installed in a horizontal lateral direction of the stringer frame with respect to the fixing bolt inserted into the insertion space formed in the support; and a quadrangular washer inserted to be movable in the slide guide groove formed in each of the movement adjusting units and having a female screw hole into which the male screw unit of the fixing bolt inserted into the insertion space of the support is screwed.;COPYRIGHT KIPO 2016