| 摘要 |
The present staircase (S', S'') includes a permanent framing (200, 300) made of metallic stringers (208), one of which being typically secured to a half-timbering (F). Vertically extending step supports (210) are secured along the stringers (208) and each include upper and front flanges (254) adapted to be secured respectively to a tread (204, 304) and to a riser (206, 306) of each step (202, 302) of the staircase (S', S''). Various support systems, including a corner post (312) and brackets (328, 332, 338) mounted thereto, are provided for supporting various horizontal (226c) and angled (208b, 208d) structural components of the framework (300) of the staircase (S'') when the staircase (S'') is L-shaped or U-shaped thereby including a turn in the staircase with flaring steps (103, 104, 105), and also possibly a landing (110). If the staircase (S', S'') has an exposed side, various decorative or finishing wooden components, including treads (304), risers (306), false or decorative stringers (346, 350, 352, 360), mouldings (344, 348, 362), etc., are provided to completely cover the structural metallic framework (300), including the stringers (208b, 208d). On the outside, or large, ends of corner steps (103, 104, 105), metallic L-shaped stringers (326) may be mounted to the dwelling's framework (F) and used to support the steps (302) instead of the aforementioned step supports (210). |
