| 摘要 |
The module structure (1) of a staircase step (2) comprises a top (3) having an upper surface (3S) which is stepped on during use and a lower opposite surface (3I). The step has a front edge (3F) and an opposite back edge (3D). A sheet steel structure (4) which is applied under the plane of the lower surface defines a support (5) for a step top lower surface. Holes are provided for fixing top anchoring parts against the support. The modules are assembled together by two complementary cylindrical parts (7,8) of diameter (D). One part is constituted by a shaft (7) and the female part constituted by a cavity (8). These parts have axes (7A,8A) orthogonal to the support with a distance between axes (E). The shaft which engages in the complementary cavity in a module located below the support plane extends over a height (H) above the support plane (P5). |
