Title:
グラウト材充填用底型枠
Document Type and Number:
Japanese Patent JP6883983
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reliably and promptly prevent outflow of a grout material from an insertion hole through an air vent port or an injection port.SOLUTION: A bottom mold 2 for filling a grout material of the present invention includes: an air vent-side shutter plate 26 as air vent-side blocking means for blocking outflow of mortar from an insertion hole, by closing an air vent port 11 after an air vent member 10 has been pulled out; and an injection-side shutter plate 24 as injection-side blocking means for blocking outflow of mortar from the insertion hole, by closing an injection port 3. The air vent-side shutter plate 26 may move back and forth freely between a closed position where the air vent port 11 is closed and an open position where the air vent port is open, while the injection-side shutter plate 24 may move back and forth freely between a closed position where the injection port 3 is closed and an open position where the injection port is open.SELECTED DRAWING: Figure 2
Inventors:
Koichi Tanaka
Tomoko Hiraga
Ryoji Kasaki
Tomoko Hiraga
Ryoji Kasaki
Application Number:
JP2016243340A
Publication Date:
June 09, 2021
Filing Date:
December 15, 2016
Export Citation:
Assignee:
Obayashi Corporation
Hiraga Co., Ltd.
Hiraga Co., Ltd.
International Classes:
E04G23/02
Domestic Patent References:
| JP2010185247A | ||||
| JP2015028266A | ||||
| JP2011184990A |
Foreign References:
| US20140234031 |
Attorney, Agent or Firm:
Satoshi Kubo