Title:
廻り階段の施工方法及び廻り階段の施工用セット
Document Type and Number:
Japanese Patent JP7365129
Kind Code:
B2
Abstract:
To provide a construction method for a spiral staircase and a construction unit for the spiral staircase capable of carrying out a construction including installations of a center column and step plates at the same time using completely pre-cut members.SOLUTION: A construction method for a spiral staircase by vertically installing a center column 20 in a building and connecting step plates 10 of the spiral staircase to the center column 20 comprises; constructing a structural member of the building before vertically installing the center column 20; vertically installing the center column 20 in which connecting grooves for each one end of the step plates 10; and connecting each one end of the step plates 10 to the center column 20. Further, each of the other ends of the step plates 10 pre-formed in a specific shape is connected to side plates 30, 40, 50 in which connecting grooves are pre-formed for the other ends of the step plates 10.SELECTED DRAWING: Figure 1
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Inventors:
Katsunori Sako
Hiroshi Yagi
Hiroshi Yagi
Application Number:
JP2019044676A
Publication Date:
October 19, 2023
Filing Date:
March 12, 2019
Export Citation:
Assignee:
Wood One Co., Ltd.
International Classes:
E04F11/032; E04F11/02
Domestic Patent References:
| JP2000008572A | ||||
| JP3151452A | ||||
| JP9279797A | ||||
| JP2012233403A | ||||
| JP53101824A |
Foreign References:
| WO1992003625A1 |
Attorney, Agent or Firm:
Takayuki Nobusue