| 摘要 |
A modular staircase framework features a plurality of steps. Each step comprises a pair of stringer plates and a tread plate. First and second stringer plates are arranged to be laterally opposite one another, and the tread plate is arranged to span between the stringer plates. Furthermore, the first stringer plates are arranged to collectively define a first stringer and the second stringer plates of the steps are arranged to collectively define a second stringer. Within each pair of steps arranged to be adjacent one another, each stringer plate of a first step comprises holes along a first edge thereof, and each stringer plate of a second step comprises tabs projecting from a second edge thereof for coupling to the holes of the stringer plates of the first step. The stringer plates and the tread plate are fabricated from flat sheet metal using a cutting method controlled by a computer. |
