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To provide a novel wooden spiral staircase that can demonstrate sufficient strength while saving space and cost.SOLUTION: There is provided a spiral staircase portion 20 around a support 10 as an axis. The staircase portion 20 includes a plurality of treads 21 each having one end fitted into the support 10, and a plurality of risers 22 each having one end fitted in the support 10 to support each tread 21. According to such a structure, the load applied to each tread 21 is supported by each riser 22, so that even when the staircase is made of wood, sufficient strength can be exhibited as a staircase for people to ascend and descend. In addition, since there is only one support 10, the installation space can be reduced, and the material cost can be reduced, resulting in low cost.SELECTED DRAWING: Figure 1
【課題】省スペースかつ省コストで十分な強度を発揮できる新規な木製の螺旋階段を提供する。【解決手段】支柱10を軸としてその周囲に螺旋状の階段部20を備え、前記階段部20は、一端がそれぞれ支柱10に嵌め込まれる複数の踏板21と、一端がそれぞれ支柱10に嵌め込まれて各踏板21を支持する複数の蹴込板22とからなる。このような構成によれば、各踏板21にかかる荷重を各蹴込板22で支えるように作用するため、木製であっても人が昇降するための階段として十分な強度を発揮できる。また、支柱10が1本であるため、設置スペースが小さくできると共に、材料費も少なくて済むため、コストも安価となる。【選択図】図1
To provide a novel wooden spiral staircase that can demonstrate sufficient strength while saving space and cost.SOLUTION: There is provided a spiral staircase portion 20 around a support 10 as an axis. The staircase portion 20 includes a plurality of treads 21 each having one end fitted into the support 10, and a plurality of risers 22 each having one end fitted in the support 10 to support each tread 21. According to such a structure, the load applied to each tread 21 is supported by each riser 22, so that even when the staircase is made of wood, sufficient strength can be exhibited as a staircase for people to ascend and descend. In addition, since there is only one support 10, the installation space can be reduced, and the material cost can be reduced, resulting in low cost.SELECTED DRAWING: Figure 1
【課題】省スペースかつ省コストで十分な強度を発揮できる新規な木製の螺旋階段を提供する。【解決手段】支柱10を軸としてその周囲に螺旋状の階段部20を備え、前記階段部20は、一端がそれぞれ支柱10に嵌め込まれる複数の踏板21と、一端がそれぞれ支柱10に嵌め込まれて各踏板21を支持する複数の蹴込板22とからなる。このような構成によれば、各踏板21にかかる荷重を各蹴込板22で支えるように作用するため、木製であっても人が昇降するための階段として十分な強度を発揮できる。また、支柱10が1本であるため、設置スペースが小さくできると共に、材料費も少なくて済むため、コストも安価となる。【選択図】図1
WOODEN SPIRAL STAIRCASE
木製の螺旋階段
SANO MASAYUKI (author)
2022-11-17
Patent
Electronic Resource
Japanese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden
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