A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TREAD OF STEEL STAIRCASE AND STEEL STAIRCASE PROVIDED THEREWITH
PROBLEM TO BE SOLVED: To provide a tread of a steel staircase making it possible to ensure excellent quietness at a low cost without impairing safety.SOLUTION: A tread 1A of a steel staircase formed of a tread plate 4a, a front plate 3b, a bottom plate 3a, and a rear face plate 3c using a steel plate, is characterized in that the front plate 3b, the bottom plate 3a, and the rear face plate 3c are continuously formed by bending a single steel plate; the bottom plate 3a forms a horizontal plane 30 between a pair of inclined planes 31 and 32 formed on both sides thereof in the short diameter direction with the central side in the short diameter direction projecting upwardly throughout the long diameter direction; and the tread plate 4a is supported from below by the horizontal plane 30 in surface contact therewith.SELECTED DRAWING: Figure 1
【課題】鋼製階段の踏板について、安全性を損なうことなく低コストで優れた静音性を確保できるようにすることを課題とする。【解決手段】鋼板を用いて踏面板４ａ・前面板３ｂ・底面板３ａ・後面板３ｃを形成してなる鋼製階段の踏板１Ａであって、その前面板３ｂ・底面板３ａ・後面板３ｃが１枚の鋼板を屈曲して連続的に形成したものであり、その底面板３ａが、短径方向中央側が長径方向総てに亘って上方に突出しながら短径方向両端側に形成した１対の傾斜面３１，３２の間に水平面３０を形成しており、その水平面３０で面接触して踏面板４ａを下から支持していることを特徴とするものとした。【選択図】図１
TREAD OF STEEL STAIRCASE AND STEEL STAIRCASE PROVIDED THEREWITH
PROBLEM TO BE SOLVED: To provide a tread of a steel staircase making it possible to ensure excellent quietness at a low cost without impairing safety.SOLUTION: A tread 1A of a steel staircase formed of a tread plate 4a, a front plate 3b, a bottom plate 3a, and a rear face plate 3c using a steel plate, is characterized in that the front plate 3b, the bottom plate 3a, and the rear face plate 3c are continuously formed by bending a single steel plate; the bottom plate 3a forms a horizontal plane 30 between a pair of inclined planes 31 and 32 formed on both sides thereof in the short diameter direction with the central side in the short diameter direction projecting upwardly throughout the long diameter direction; and the tread plate 4a is supported from below by the horizontal plane 30 in surface contact therewith.SELECTED DRAWING: Figure 1
【課題】鋼製階段の踏板について、安全性を損なうことなく低コストで優れた静音性を確保できるようにすることを課題とする。【解決手段】鋼板を用いて踏面板４ａ・前面板３ｂ・底面板３ａ・後面板３ｃを形成してなる鋼製階段の踏板１Ａであって、その前面板３ｂ・底面板３ａ・後面板３ｃが１枚の鋼板を屈曲して連続的に形成したものであり、その底面板３ａが、短径方向中央側が長径方向総てに亘って上方に突出しながら短径方向両端側に形成した１対の傾斜面３１，３２の間に水平面３０を形成しており、その水平面３０で面接触して踏面板４ａを下から支持していることを特徴とするものとした。【選択図】図１
TREAD OF STEEL STAIRCASE AND STEEL STAIRCASE PROVIDED THEREWITH
鋼製階段の踏板及びそれを備えた鋼製階段
KONDO SHOGO (author)
2018-05-24
Patent
Electronic Resource
Japanese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
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Ausbau von Bauwerken, z.B. Treppen, Fußböden
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