| 摘要 |
<p>PROBLEM TO BE SOLVED: To reuse a structure for insuring safety of a staircase and dissolve inconvenience accompanying movement of upper and lower floors of the staircase by standingly fixing a spiral staircase on the first floor box part partitioned by a defining panel, and forming an opening on a defining panel in the vicinity of the upper end part. SOLUTION: A house box 20 is fitted to the entrance door side of a two- storied temporary house in which the second story unit 11 is placed on the first story unit 10 constituted as separate part unit and fixedly connected together by bolts 15, and a helical staircase 21 is standingly fixed therein. The helical staircase 21 is provided with a pillar 22 and spiral step plates 23, and the upper and lower end parts are respectively fixed to a ceiling panel 24 and a floor face panel 25. Openings are provided on the ceiling panel 24 and the floor face panel 31 of a house box for the second story 30 so as to be able to move up and down. The house boxes 20, 30 open the fitting faces to the main body units 10,11, and hence the entrance door of a main body house can be utilized.</p> |
