Title:
ダクト構築方法
Document Type and Number:
Japanese Patent JP6842881
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To shorten the period of duct construction, reduce cost including a pedestal expense, and reduce space necessary for duct construction while improving duct fire resistance, durability, and quality.SOLUTION: A precast duct material 10 in which a concrete outer peripheral wall 12 is integrally formed on the outer peripheral side of a cylindrical duct component material 11 is first formed, then the precast duct material 10 is lifted to the installation position of a duct construction place of a building, and the lifted precast duct material 10 is fixed to the building frame 2 of the building.SELECTED DRAWING: Figure 4
Inventors:
Kenji Ueda
Hideki Nakagawa
Okuda Masayuki
Shunji Yamamoto
Takahiro Machinaga
Junji Yamamoto
Nobuaki Sato
Keisuke Ochi
▲濱▼田 哲也
Ori Shiro
Hideki Nakagawa
Okuda Masayuki
Shunji Yamamoto
Takahiro Machinaga
Junji Yamamoto
Nobuaki Sato
Keisuke Ochi
▲濱▼田 哲也
Ori Shiro
Application Number:
JP2016210980A
Publication Date:
March 17, 2021
Filing Date:
October 27, 2016
Export Citation:
Assignee:
TAKENAKA CORPORATION
International Classes:
E04B2/86; E04F17/08; F24F13/02
Domestic Patent References:
| JP8049227A | ||||
| JP49031139A | ||||
| JP2001020297A | ||||
| JP2004352457A | ||||
| JP7155083A | ||||
| JP2008107061A |
Foreign References:
| CN204645727U |
Attorney, Agent or Firm:
Masahiro Miyaji