| 摘要 |
PURPOSE:To make it possible to construct an independant staircase without depending on a skeleton of a building body, that is, without executing special finishing carpentry on the skeleton side of the building. CONSTITUTION:Beams (4)-(6) are provided to a pair of posts (1) and (2) erected in parallel with each other together as a unit in advance, and a landing unit (7) is provided to the beams (4)-(6). In addition, a footboard unit (12) formed as a unit in advance is connected across the landing unit (7) or ground side or the landing unit (7) on the upper side. |
