Title:
型枠及びコンクリートスラブの形成方法
Document Type and Number:
Japanese Patent JP6722508
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a concrete form that can have a through hole for easy insertion of a material formed, and a method of forming a concrete slab that can secure integration of a closed part where the through hole is closed.SOLUTION: A concrete form 31 for through hole formation which forms a through hole 21 in a floor slab 13 is characterized in that when a direction crossing a first face 13f and a second face 13s of the floor slab 13 where the through hole 21 is opened is a penetration direction, a projection part which projects more inside the through hole 21 than two openings of the through hole 21 in the penetration direction is formed on an inner wall of the through hole 21.SELECTED DRAWING: Figure 1
Inventors:
Yu Oda
Eiichi Adachi
Takashi Kamiya
Takenari Hanyuda
Takashi Taguchi
Yuji Haga
Eiichi Adachi
Takashi Kamiya
Takenari Hanyuda
Takashi Taguchi
Yuji Haga
Application Number:
JP2016098822A
Publication Date:
July 15, 2020
Filing Date:
May 17, 2016
Export Citation:
Assignee:
Yahagi Construction Industry Co., Ltd.
International Classes:
E04G15/06
Domestic Patent References:
| JP3007524U | ||||
| JP2003239538A |
Foreign References:
| US20140260013 | ||||
| US5444947 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda