A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a spiral staircase that can save a lot of time required for production by forming the shape of the five-fold spiral step board of the folded portion in the same shape.SOLUTION: There is provided an assembled steel staircase in which the spiral step board of the spiral staircase is divided into 5 sections, and also the step nose surface of the spiral step board formed by bending a flat steel plate is formed to be longitudinally elongated with respect to the kicking up surface section. Further, in order to fix the spiral step board to the bracing girder, a hole is formed for fixing the inner periphery of the spiral step board to the bracing girder with a bending bolt. Also, the outer periphery of the step board is formed into a triangle shape, and a plurality of holes are formed to fix it to the bracing girder with a bending bolt, and the spiral step board formed of five pieces and the shape of the step-up surface and the step nosing surface of the spiral step board are formed in the same shape.SELECTED DRAWING: Figure 1
【課題】 折り返し部の５ツ割りの廻り踏板の形状を同一形状で形成することにより、製作に要する多くの手間を省くことができる廻り階段を提供することを課題とする。【解決手段】 廻り階段の廻り踏板を５ツ割りで構成すると共に、平板鋼板を折り曲げて成形した廻り踏板の段鼻面部を蹴り上げ面部に対して縦長に成形し、さらに廻り踏板をささら桁に固定するため、廻り踏板の内周部を折り曲げボルトでささら桁に固定するための穴を開けると共に、廻り踏板の外周部を三角形状に成形し折り曲げボルトでささら桁に固定するため複数の穴を開け、５ツ割りで構成した廻り踏板と廻り踏板の蹴り上げ面部と段鼻面部の形状を同一形状で形成した組立式の鉄骨階段を提供する。【選択図】図１
To provide a spiral staircase that can save a lot of time required for production by forming the shape of the five-fold spiral step board of the folded portion in the same shape.SOLUTION: There is provided an assembled steel staircase in which the spiral step board of the spiral staircase is divided into 5 sections, and also the step nose surface of the spiral step board formed by bending a flat steel plate is formed to be longitudinally elongated with respect to the kicking up surface section. Further, in order to fix the spiral step board to the bracing girder, a hole is formed for fixing the inner periphery of the spiral step board to the bracing girder with a bending bolt. Also, the outer periphery of the step board is formed into a triangle shape, and a plurality of holes are formed to fix it to the bracing girder with a bending bolt, and the spiral step board formed of five pieces and the shape of the step-up surface and the step nosing surface of the spiral step board are formed in the same shape.SELECTED DRAWING: Figure 1
【課題】 折り返し部の５ツ割りの廻り踏板の形状を同一形状で形成することにより、製作に要する多くの手間を省くことができる廻り階段を提供することを課題とする。【解決手段】 廻り階段の廻り踏板を５ツ割りで構成すると共に、平板鋼板を折り曲げて成形した廻り踏板の段鼻面部を蹴り上げ面部に対して縦長に成形し、さらに廻り踏板をささら桁に固定するため、廻り踏板の内周部を折り曲げボルトでささら桁に固定するための穴を開けると共に、廻り踏板の外周部を三角形状に成形し折り曲げボルトでささら桁に固定するため複数の穴を開け、５ツ割りで構成した廻り踏板と廻り踏板の蹴り上げ面部と段鼻面部の形状を同一形状で形成した組立式の鉄骨階段を提供する。【選択図】図１
ASSEMBLED STEEL FRAME STAIRCASE
組立式の鉄骨階段
TAKAHASHI TATSUO (author)
2019-05-23
Patent
Electronic Resource
Japanese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden
STEEL STAIRCASE AND ATTACHMENT METHOD OF STEEL STAIRCASE
| European Patent Office | 2021