发明名称 Stairs and method of making the same
摘要 A construction for wooden stairs that provides for rapid layout and assembly of the stairs by using an interlocking technique that locks the treads and risers into the stringers without the use of fasteners, adhesives or wedges. The construction technique and the resulting unique stairs substantially reduces the layout and assembly time from that required by conventional stairs by accurately machining the required dovetail grooves in the stringers and the corresponding male dovetail on each tread and riser end. Each tread and riser are then slid into place in the stringers and are interlocked so that once the stairs are assembled and interlocked, it is impossible for the components to become separated.
申请公布号 US4154032(A) 申请公布日期 1979.05.15
申请号 US19780874413 申请日期 1978.02.02
申请人 STRUB, ROBERT D 发明人 STRUB, ROBERT D
分类号 E04F11/025;(IPC1-7):E04F11/10 主分类号 E04F11/025
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