Title:
金庫及びその製造方法
Document Type and Number:
Japanese Patent JP6927751
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a safe having high crime preventing, fire resisting and heat insulating properties.SOLUTION: With a safe 1, either or both of a safe body 2 and a safe door 3 include metallic plate structures 4, 5 having outer surface plate parts 4a, 5a, inner surface plate parts 4b, 5b, and a storage space interposed between the outer surface plate parts 4a, 5a and the inner surface plate parts 4b, 5b, cement-based hardening bodies 6, 7 stored in a part of the storage space, and heat insulation materials 8, 9 stored in a remaining part of the storage space. The cement-based hardening body is a hardening body of a cement composition that includes cement, silica fume with a BET specific surface area between 15 and 25 m/g, inorganic powder with a 50% volume cumulative particle diameter between 0.8 and 5 μm, an aggregate A with a maximum particle diameter of 1.2 mm or less, a high-performance water reducing agent, a defoaming agent, an organic fiber and water, and of 100 vol.% of the cement, the silica fume and the inorganic powder, the cement accounts for 55 to 65 vol.%, the silica fume accounts for 5 to 25 vol.%, and the inorganic powder accounts for 15 to 35 vol.%.SELECTED DRAWING: Figure 1
Inventors:
Katsuya Kono
Kanako Mori
Katsuhiko Tada
Kanako Mori
Katsuhiko Tada
Application Number:
JP2017102814A
Publication Date:
September 01, 2021
Filing Date:
May 24, 2017
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
E05G1/024; C04B28/02
Domestic Patent References:
| JP7127338A | ||||
| JP6235277A | ||||
| JP2015231932A | ||||
| JP2011042534A |
Foreign References:
| US4263365 |
Attorney, Agent or Firm:
Naoyuki Koda
Shuichi Kitamura
Toshiya Murachi
Shuichi Kitamura
Toshiya Murachi