| 摘要 |
PROBLEM TO BE SOLVED: To provide a rail member useful to form a smokestop wall by sectionalizing an upper space inside a room with a simple structure, and to provide a smokestop drop wall using the rail members.SOLUTION: In this section wall structure, core materials 24 are inserted into upper and lower end parts (hollow cylindrical parts) of a sheet (the smokestop wall) 21, the sheet 21 is mounted or stored in dovetail groove-like mounting recessed parts 7, 17 of a pair of upper and lower rail members 1, 11 in a state to be able to laterally slide or move and in a state that longitudinal coming-off is restricted, side parts of the sheet 21 are pinched by grasp members (a pair of pinching members 31, 41), and longitudinal frame members 51, 61 are disposed in end parts of the rail members 1, 11 and the grasp members. By screwing screw members 56, 66 as pulling means to screwing parts 36 of the grasp members, the sheet 21 is laterally pulled and is developed and stretched to form the section wall structure. The side parts of the sheet 21 are formed with the hollow cylindrical parts, and the core materials are inserted into the hollow cylindrical parts and can be laterally mounted in the dovetail groove-like mounting recessed parts of side part holding members in a comming-off prevention state. |
